Remove dnet libnetwork cli
This was used for testing purposes when libnetwork was in a separate repo. Now that it is integrated we no longer need it since dockerd and docker cli provide the same function. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This commit is contained in:
Brian Goff
Sebastiaan van Stijn
parent
42bcc2df68
commit
7266a956a8
15 changed files with 0 additions and 2884 deletions
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@ -1,146 +0,0 @@
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package main
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import (
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"github.com/docker/docker/libnetwork/client"
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"github.com/moby/term"
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"github.com/urfave/cli"
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)
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var (
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containerCreateCommand = cli.Command{
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Name: "create",
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Usage: "Create a container",
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Action: runContainerCreate,
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}
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containerRmCommand = cli.Command{
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Name: "rm",
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Usage: "Remove a container",
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Action: runContainerRm,
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}
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containerCommands = []cli.Command{
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containerCreateCommand,
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containerRmCommand,
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}
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dnetCommands = []cli.Command{
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createDockerCommand("network"),
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createDockerCommand("service"),
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{
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Name: "container",
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Usage: "Container management commands",
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Subcommands: containerCommands,
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},
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}
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)
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func runContainerCreate(c *cli.Context) {
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if len(c.Args()) == 0 {
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fmt.Println("Please provide container id argument")
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os.Exit(1)
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}
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sc := client.SandboxCreate{ContainerID: c.Args()[0]}
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obj, _, err := readBody(epConn.httpCall("POST", "/sandboxes", sc, nil))
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if err != nil {
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fmt.Printf("POST failed during create container: %v\n", err)
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os.Exit(1)
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}
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var replyID string
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err = json.Unmarshal(obj, &replyID)
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if err != nil {
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fmt.Printf("Unmarshall of response failed during create container: %v\n", err)
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os.Exit(1)
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}
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fmt.Printf("%s\n", replyID)
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}
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func runContainerRm(c *cli.Context) {
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var sbList []*client.SandboxResource
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if len(c.Args()) == 0 {
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fmt.Println("Please provide container id argument")
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os.Exit(1)
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}
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obj, _, err := readBody(epConn.httpCall("GET", "/sandboxes?partial-container-id="+c.Args()[0], nil, nil))
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if err != nil {
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fmt.Printf("GET failed during container id lookup: %v\n", err)
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os.Exit(1)
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}
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err = json.Unmarshal(obj, &sbList)
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if err != nil {
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fmt.Printf("Unmarshall of container id lookup response failed: %v", err)
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os.Exit(1)
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}
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if len(sbList) == 0 {
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fmt.Printf("No sandbox for container %s found\n", c.Args()[0])
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os.Exit(1)
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}
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_, _, err = readBody(epConn.httpCall("DELETE", "/sandboxes/"+sbList[0].ID, nil, nil))
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if err != nil {
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fmt.Printf("DELETE of sandbox id %s failed: %v", sbList[0].ID, err)
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os.Exit(1)
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}
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}
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func runDockerCommand(c *cli.Context, cmd string) {
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_, stdout, stderr := term.StdStreams()
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oldcli := client.NewNetworkCli(stdout, stderr, epConn.httpCall)
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var args []string
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args = append(args, cmd)
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if c.Bool("h") {
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args = append(args, "--help")
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} else {
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args = append(args, c.Args()...)
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}
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if err := oldcli.Cmd("dnet", args...); err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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}
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func createDockerCommand(cmd string) cli.Command {
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return cli.Command{
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Name: cmd,
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Usage: fmt.Sprintf("%s management commands", cmd),
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SkipFlagParsing: true,
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Action: func(c *cli.Context) {
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runDockerCommand(c, cmd)
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},
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Subcommands: []cli.Command{
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{
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Name: "h, -help",
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Usage: fmt.Sprintf("%s help", cmd),
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},
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},
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}
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}
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func readBody(stream io.ReadCloser, hdr http.Header, statusCode int, err error) ([]byte, int, error) {
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if stream != nil {
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defer stream.Close()
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}
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if err != nil {
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return nil, statusCode, err
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}
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body, err := ioutil.ReadAll(stream)
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if err != nil {
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return nil, -1, err
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}
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return body, statusCode, nil
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}
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@ -1,580 +0,0 @@
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package main
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import (
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"bytes"
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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"net/http/httptest"
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"net/url"
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"os"
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"os/signal"
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"strconv"
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"strings"
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"syscall"
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"time"
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"github.com/docker/docker/api/types/network"
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"github.com/docker/docker/libnetwork"
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"github.com/docker/docker/libnetwork/api"
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"github.com/docker/docker/libnetwork/cluster"
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"github.com/docker/docker/libnetwork/config"
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"github.com/docker/docker/libnetwork/datastore"
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"github.com/docker/docker/libnetwork/driverapi"
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"github.com/docker/docker/libnetwork/netlabel"
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"github.com/docker/docker/libnetwork/netutils"
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"github.com/docker/docker/libnetwork/options"
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"github.com/docker/docker/libnetwork/types"
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"github.com/docker/docker/pkg/discovery"
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"github.com/docker/docker/pkg/reexec"
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"github.com/gorilla/mux"
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"github.com/moby/term"
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"github.com/pelletier/go-toml"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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const (
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// DefaultHTTPHost is used if only port is provided to -H flag e.g. docker -d -H tcp://:8080
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DefaultHTTPHost = "0.0.0.0"
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// DefaultHTTPPort is the default http port used by dnet
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DefaultHTTPPort = 2385
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cfgFileEnv = "LIBNETWORK_CFG"
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defaultCfgFile = "/etc/default/libnetwork.toml"
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defaultHeartbeat = time.Duration(10) * time.Second
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ttlFactor = 2
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)
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var epConn *dnetConnection
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func main() {
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if reexec.Init() {
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return
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}
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_, stdout, stderr := term.StdStreams()
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logrus.SetOutput(stderr)
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err := dnetApp(stdout, stderr)
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if err != nil {
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os.Exit(1)
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}
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}
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// ParseConfig parses the libnetwork configuration file
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func (d *dnetConnection) parseOrchestrationConfig(tomlCfgFile string) error {
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dummy := &dnetConnection{}
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data, err := ioutil.ReadFile(tomlCfgFile)
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if err != nil {
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return err
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}
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if err := toml.Unmarshal(data, dummy); err != nil {
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return err
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}
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if dummy.Orchestration != nil {
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d.Orchestration = dummy.Orchestration
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}
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return nil
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}
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func (d *dnetConnection) parseConfig(cfgFile string) (*config.Config, error) {
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if strings.Trim(cfgFile, " ") == "" {
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cfgFile = os.Getenv(cfgFileEnv)
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if strings.Trim(cfgFile, " ") == "" {
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cfgFile = defaultCfgFile
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}
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}
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if err := d.parseOrchestrationConfig(cfgFile); err != nil {
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return nil, err
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}
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return config.ParseConfig(cfgFile)
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}
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func processConfig(cfg *config.Config) []config.Option {
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options := []config.Option{}
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if cfg == nil {
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return options
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}
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dn := "bridge"
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if strings.TrimSpace(cfg.Daemon.DefaultNetwork) != "" {
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dn = cfg.Daemon.DefaultNetwork
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}
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options = append(options, config.OptionDefaultNetwork(dn))
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dd := "bridge"
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if strings.TrimSpace(cfg.Daemon.DefaultDriver) != "" {
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dd = cfg.Daemon.DefaultDriver
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}
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options = append(options, config.OptionDefaultDriver(dd))
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if cfg.Daemon.Labels != nil {
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options = append(options, config.OptionLabels(cfg.Daemon.Labels))
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}
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if dcfg, ok := cfg.Scopes[datastore.GlobalScope]; ok && dcfg.IsValid() {
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options = append(options, config.OptionKVProvider(dcfg.Client.Provider))
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options = append(options, config.OptionKVProviderURL(dcfg.Client.Address))
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}
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dOptions, err := startDiscovery(&cfg.Cluster)
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if err != nil {
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logrus.Infof("Skipping discovery : %s", err.Error())
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} else {
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options = append(options, dOptions...)
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}
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return options
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}
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func startDiscovery(cfg *config.ClusterCfg) ([]config.Option, error) {
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if cfg == nil {
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return nil, errors.New("discovery requires a valid configuration")
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}
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hb := time.Duration(cfg.Heartbeat) * time.Second
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if hb == 0 {
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hb = defaultHeartbeat
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}
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logrus.Infof("discovery : %s %s", cfg.Discovery, hb.String())
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d, err := discovery.New(cfg.Discovery, hb, ttlFactor*hb, map[string]string{})
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if err != nil {
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return nil, err
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}
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if cfg.Address == "" {
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iface, err := net.InterfaceByName("eth0")
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if err != nil {
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return nil, err
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}
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addrs, err := iface.Addrs()
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if err != nil || len(addrs) == 0 {
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return nil, err
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}
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ip, _, _ := net.ParseCIDR(addrs[0].String())
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cfg.Address = ip.String()
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}
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if ip := net.ParseIP(cfg.Address); ip == nil {
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return nil, errors.New("address config should be either ipv4 or ipv6 address")
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}
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if err := d.Register(cfg.Address + ":0"); err != nil {
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return nil, err
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}
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options := []config.Option{config.OptionDiscoveryWatcher(d), config.OptionDiscoveryAddress(cfg.Address)}
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go func() {
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for {
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time.Sleep(hb)
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if err := d.Register(cfg.Address + ":0"); err != nil {
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logrus.Warn(err)
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}
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}
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}()
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return options, nil
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}
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func dnetApp(stdout, stderr io.Writer) error {
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app := cli.NewApp()
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app.Name = "dnet"
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app.Usage = "A self-sufficient runtime for container networking."
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app.Flags = dnetFlags
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app.Before = processFlags
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app.Commands = dnetCommands
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app.Run(os.Args)
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return nil
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}
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func createDefaultNetwork(c libnetwork.NetworkController) {
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nw := c.Config().Daemon.DefaultNetwork
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d := c.Config().Daemon.DefaultDriver
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createOptions := []libnetwork.NetworkOption{}
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genericOption := options.Generic{}
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if nw != "" && d != "" {
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// Bridge driver is special due to legacy reasons
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if d == "bridge" {
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genericOption[netlabel.GenericData] = map[string]string{
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"BridgeName": "docker0",
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"DefaultBridge": "true",
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}
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createOptions = append(createOptions,
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libnetwork.NetworkOptionGeneric(genericOption),
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ipamOption(nw))
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}
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if n, err := c.NetworkByName(nw); err == nil {
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logrus.Debugf("Default network %s already present. Deleting it", nw)
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if err = n.Delete(); err != nil {
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logrus.Debugf("Network could not be deleted: %v", err)
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return
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}
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}
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_, err := c.NewNetwork(d, nw, "", createOptions...)
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if err != nil {
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logrus.Errorf("Error creating default network : %s : %v", nw, err)
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}
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}
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}
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type dnetConnection struct {
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// proto holds the client protocol i.e. unix.
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proto string
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// addr holds the client address.
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addr string
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Orchestration *NetworkOrchestration
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configEvent chan cluster.ConfigEventType
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}
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// NetworkOrchestration exported
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type NetworkOrchestration struct {
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Agent bool
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Manager bool
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Bind string
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Peer string
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}
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func (d *dnetConnection) dnetDaemon(cfgFile string) error {
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if err := startTestDriver(); err != nil {
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return fmt.Errorf("failed to start test driver: %v", err)
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}
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cfg, err := d.parseConfig(cfgFile)
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var cOptions []config.Option
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if err == nil {
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cOptions = processConfig(cfg)
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} else {
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logrus.Errorf("Error parsing config %v", err)
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}
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bridgeConfig := options.Generic{
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"EnableIPForwarding": true,
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"EnableIPTables": true,
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}
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bridgeOption := options.Generic{netlabel.GenericData: bridgeConfig}
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cOptions = append(cOptions, config.OptionDriverConfig("bridge", bridgeOption))
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controller, err := libnetwork.New(cOptions...)
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if err != nil {
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fmt.Println("Error starting dnetDaemon :", err)
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return err
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}
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controller.SetClusterProvider(d)
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if d.Orchestration.Agent || d.Orchestration.Manager {
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d.configEvent <- cluster.EventNodeReady
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}
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createDefaultNetwork(controller)
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httpHandler := api.NewHTTPHandler(controller)
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r := mux.NewRouter().StrictSlash(false)
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post := r.PathPrefix("/{.*}/networks").Subrouter()
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post.Methods("GET", "PUT", "POST", "DELETE").HandlerFunc(httpHandler)
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post = r.PathPrefix("/networks").Subrouter()
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post.Methods("GET", "PUT", "POST", "DELETE").HandlerFunc(httpHandler)
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post = r.PathPrefix("/{.*}/services").Subrouter()
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post.Methods("GET", "PUT", "POST", "DELETE").HandlerFunc(httpHandler)
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post = r.PathPrefix("/services").Subrouter()
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post.Methods("GET", "PUT", "POST", "DELETE").HandlerFunc(httpHandler)
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post = r.PathPrefix("/{.*}/sandboxes").Subrouter()
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post.Methods("GET", "PUT", "POST", "DELETE").HandlerFunc(httpHandler)
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post = r.PathPrefix("/sandboxes").Subrouter()
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post.Methods("GET", "PUT", "POST", "DELETE").HandlerFunc(httpHandler)
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handleSignals(controller)
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setupDumpStackTrap()
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return http.ListenAndServe(d.addr, r)
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}
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func (d *dnetConnection) IsManager() bool {
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return d.Orchestration.Manager
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}
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func (d *dnetConnection) IsAgent() bool {
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return d.Orchestration.Agent
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}
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func (d *dnetConnection) GetAdvertiseAddress() string {
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return d.Orchestration.Bind
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}
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func (d *dnetConnection) GetDataPathAddress() string {
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return d.Orchestration.Bind
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}
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func (d *dnetConnection) GetLocalAddress() string {
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return d.Orchestration.Bind
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}
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func (d *dnetConnection) GetListenAddress() string {
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return d.Orchestration.Bind
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}
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func (d *dnetConnection) GetRemoteAddressList() []string {
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return []string{d.Orchestration.Peer}
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}
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func (d *dnetConnection) ListenClusterEvents() <-chan cluster.ConfigEventType {
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return d.configEvent
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}
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func (d *dnetConnection) AttachNetwork(string, string, []string) (*network.NetworkingConfig, error) {
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return nil, nil
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}
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func (d *dnetConnection) DetachNetwork(string, string) error {
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return nil
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}
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func (d *dnetConnection) UpdateAttachment(string, string, *network.NetworkingConfig) error {
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return nil
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}
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func (d *dnetConnection) WaitForDetachment(context.Context, string, string, string, string) error {
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return nil
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}
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func handleSignals(controller libnetwork.NetworkController) {
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c := make(chan os.Signal, 1)
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signals := []os.Signal{os.Interrupt, syscall.SIGTERM, syscall.SIGQUIT}
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signal.Notify(c, signals...)
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go func() {
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for range c {
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controller.Stop()
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os.Exit(0)
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}
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}()
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}
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||||
func startTestDriver() error {
|
||||
mux := http.NewServeMux()
|
||||
server := httptest.NewServer(mux)
|
||||
if server == nil {
|
||||
return errors.New("Failed to start an HTTP Server")
|
||||
}
|
||||
|
||||
mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
|
||||
fmt.Fprintf(w, `{"Implements": ["%s"]}`, driverapi.NetworkPluginEndpointType)
|
||||
})
|
||||
|
||||
mux.HandleFunc(fmt.Sprintf("/%s.GetCapabilities", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
|
||||
fmt.Fprint(w, `{"Scope":"global"}`)
|
||||
})
|
||||
|
||||
mux.HandleFunc(fmt.Sprintf("/%s.CreateNetwork", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
|
||||
fmt.Fprint(w, "null")
|
||||
})
|
||||
|
||||
mux.HandleFunc(fmt.Sprintf("/%s.DeleteNetwork", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
|
||||
fmt.Fprint(w, "null")
|
||||
})
|
||||
|
||||
mux.HandleFunc(fmt.Sprintf("/%s.CreateEndpoint", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
|
||||
fmt.Fprint(w, "null")
|
||||
})
|
||||
|
||||
mux.HandleFunc(fmt.Sprintf("/%s.DeleteEndpoint", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
|
||||
fmt.Fprint(w, "null")
|
||||
})
|
||||
|
||||
mux.HandleFunc(fmt.Sprintf("/%s.Join", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
|
||||
fmt.Fprint(w, "null")
|
||||
})
|
||||
|
||||
mux.HandleFunc(fmt.Sprintf("/%s.Leave", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
|
||||
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
|
||||
fmt.Fprint(w, "null")
|
||||
})
|
||||
|
||||
if err := os.MkdirAll("/etc/docker/plugins", 0755); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return ioutil.WriteFile("/etc/docker/plugins/test.spec", []byte(server.URL), 0644)
|
||||
}
|
||||
|
||||
func newDnetConnection(val string) (*dnetConnection, error) {
|
||||
url, err := parseHost(val)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
protoAddrParts := strings.SplitN(url, "://", 2)
|
||||
if len(protoAddrParts) != 2 {
|
||||
return nil, errors.New("bad format, expected tcp://ADDR")
|
||||
}
|
||||
if strings.ToLower(protoAddrParts[0]) != "tcp" {
|
||||
return nil, errors.New("dnet currently only supports tcp transport")
|
||||
}
|
||||
|
||||
return &dnetConnection{protoAddrParts[0], protoAddrParts[1], &NetworkOrchestration{}, make(chan cluster.ConfigEventType, 10)}, nil
|
||||
}
|
||||
|
||||
const (
|
||||
defaultUnixSocket = "unix:///var/run/docker.sock"
|
||||
defaultTCPHost = "tcp://localhost:2375"
|
||||
)
|
||||
|
||||
// parseHost and set defaults for a Daemon host string.
|
||||
func parseHost(val string) (string, error) {
|
||||
host := strings.TrimSpace(val)
|
||||
if host == "" {
|
||||
return defaultUnixSocket, nil
|
||||
}
|
||||
|
||||
addrParts := strings.SplitN(host, "://", 2)
|
||||
if len(addrParts) == 1 && addrParts[0] != "" {
|
||||
addrParts = []string{"tcp", addrParts[0]}
|
||||
}
|
||||
if addrParts[0] != "tcp" {
|
||||
return "", errors.New("dnet currently only supports tcp transport")
|
||||
}
|
||||
|
||||
return parseTCPAddr(addrParts[1], defaultTCPHost)
|
||||
}
|
||||
|
||||
// parseTCPAddr parses and validates that the specified address is a valid TCP
|
||||
// address. It returns a formatted TCP address, either using the address parsed
|
||||
// from tryAddr, or the contents of defaultAddr if tryAddr is a blank string.
|
||||
// tryAddr is expected to have already been Trim()'d
|
||||
// defaultAddr must be in the full `tcp://host:port` form
|
||||
func parseTCPAddr(tryAddr string, defaultAddr string) (string, error) {
|
||||
if tryAddr == "" || tryAddr == "tcp://" {
|
||||
return defaultAddr, nil
|
||||
}
|
||||
addr := strings.TrimPrefix(tryAddr, "tcp://")
|
||||
if strings.Contains(addr, "://") || addr == "" {
|
||||
return "", fmt.Errorf("Invalid proto, expected tcp: %s", tryAddr)
|
||||
}
|
||||
|
||||
defaultAddr = strings.TrimPrefix(defaultAddr, "tcp://")
|
||||
defaultHost, defaultPort, err := net.SplitHostPort(defaultAddr)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
u, err := url.Parse("tcp://" + addr)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
host, port, err := net.SplitHostPort(u.Host)
|
||||
if err != nil {
|
||||
// try port addition once
|
||||
host, port, err = net.SplitHostPort(net.JoinHostPort(u.Host, defaultPort))
|
||||
}
|
||||
if err != nil {
|
||||
return "", fmt.Errorf("Invalid bind address format: %s", tryAddr)
|
||||
}
|
||||
|
||||
if host == "" {
|
||||
host = defaultHost
|
||||
}
|
||||
if port == "" {
|
||||
port = defaultPort
|
||||
}
|
||||
p, err := strconv.Atoi(port)
|
||||
if err != nil && p == 0 {
|
||||
return "", fmt.Errorf("Invalid bind address format: %s", tryAddr)
|
||||
}
|
||||
|
||||
return fmt.Sprintf("tcp://%s%s", net.JoinHostPort(host, port), u.Path), nil
|
||||
}
|
||||
|
||||
func (d *dnetConnection) httpCall(method, path string, data interface{}, headers map[string][]string) (io.ReadCloser, http.Header, int, error) {
|
||||
var in io.Reader
|
||||
in, err := encodeData(data)
|
||||
if err != nil {
|
||||
return nil, nil, -1, err
|
||||
}
|
||||
|
||||
req, err := http.NewRequest(method, path, in)
|
||||
if err != nil {
|
||||
return nil, nil, -1, err
|
||||
}
|
||||
|
||||
setupRequestHeaders(method, data, req, headers)
|
||||
|
||||
req.URL.Host = d.addr
|
||||
req.URL.Scheme = "http"
|
||||
|
||||
httpClient := &http.Client{}
|
||||
resp, err := httpClient.Do(req)
|
||||
statusCode := -1
|
||||
if resp != nil {
|
||||
statusCode = resp.StatusCode
|
||||
}
|
||||
if err != nil {
|
||||
return nil, nil, statusCode, fmt.Errorf("error when trying to connect: %v", err)
|
||||
}
|
||||
|
||||
if statusCode < 200 || statusCode >= 400 {
|
||||
body, err := ioutil.ReadAll(resp.Body)
|
||||
if err != nil {
|
||||
return nil, nil, statusCode, err
|
||||
}
|
||||
return nil, nil, statusCode, fmt.Errorf("error : %s", bytes.TrimSpace(body))
|
||||
}
|
||||
|
||||
return resp.Body, resp.Header, statusCode, nil
|
||||
}
|
||||
|
||||
func setupRequestHeaders(method string, data interface{}, req *http.Request, headers map[string][]string) {
|
||||
if data != nil {
|
||||
if headers == nil {
|
||||
headers = make(map[string][]string)
|
||||
}
|
||||
headers["Content-Type"] = []string{"application/json"}
|
||||
}
|
||||
|
||||
expectedPayload := (method == "POST" || method == "PUT")
|
||||
|
||||
if expectedPayload && req.Header.Get("Content-Type") == "" {
|
||||
req.Header.Set("Content-Type", "text/plain")
|
||||
}
|
||||
|
||||
for k, v := range headers {
|
||||
req.Header[k] = v
|
||||
}
|
||||
}
|
||||
|
||||
func encodeData(data interface{}) (*bytes.Buffer, error) {
|
||||
params := bytes.NewBuffer(nil)
|
||||
if data != nil {
|
||||
if err := json.NewEncoder(params).Encode(data); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return params, nil
|
||||
}
|
||||
|
||||
func ipamOption(bridgeName string) libnetwork.NetworkOption {
|
||||
if nws, _, err := netutils.ElectInterfaceAddresses(bridgeName); err == nil {
|
||||
ipamV4Conf := &libnetwork.IpamConf{PreferredPool: nws[0].String()}
|
||||
hip, _ := types.GetHostPartIP(nws[0].IP, nws[0].Mask)
|
||||
if hip.IsGlobalUnicast() {
|
||||
ipamV4Conf.Gateway = nws[0].IP.String()
|
||||
}
|
||||
return libnetwork.NetworkOptionIpam("default", "", []*libnetwork.IpamConf{ipamV4Conf}, nil, nil)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
|
@ -1,19 +0,0 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
"os/signal"
|
||||
"syscall"
|
||||
|
||||
psignal "github.com/docker/docker/pkg/signal"
|
||||
)
|
||||
|
||||
func setupDumpStackTrap() {
|
||||
c := make(chan os.Signal, 1)
|
||||
signal.Notify(c, syscall.SIGUSR1)
|
||||
go func() {
|
||||
for range c {
|
||||
psignal.DumpStacks("")
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
|
@ -1,27 +0,0 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
|
||||
"github.com/docker/docker/pkg/signal"
|
||||
"github.com/sirupsen/logrus"
|
||||
"golang.org/x/sys/windows"
|
||||
)
|
||||
|
||||
// Copied over from docker/daemon/debugtrap_windows.go
|
||||
func setupDumpStackTrap() {
|
||||
go func() {
|
||||
sa := windows.SecurityAttributes{
|
||||
Length: 0,
|
||||
}
|
||||
ev, _ := windows.UTF16PtrFromString("Global\\docker-daemon-" + fmt.Sprint(os.Getpid()))
|
||||
if h, _ := windows.CreateEvent(&sa, 0, 0, ev); h != 0 {
|
||||
logrus.Debugf("Stackdump - waiting signal at %d", *ev)
|
||||
for {
|
||||
windows.WaitForSingleObject(h, windows.INFINITE)
|
||||
signal.DumpStacks("")
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
|
@ -1,87 +0,0 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"os"
|
||||
|
||||
"github.com/sirupsen/logrus"
|
||||
"github.com/urfave/cli"
|
||||
)
|
||||
|
||||
var (
|
||||
dnetFlags = []cli.Flag{
|
||||
cli.BoolFlag{
|
||||
Name: "d, -daemon",
|
||||
Usage: "Enable daemon mode",
|
||||
},
|
||||
cli.StringFlag{
|
||||
Name: "H, -host",
|
||||
Value: "",
|
||||
Usage: "Daemon socket to connect to",
|
||||
},
|
||||
cli.StringFlag{
|
||||
Name: "l, -log-level",
|
||||
Value: "info",
|
||||
Usage: "Set the logging level",
|
||||
},
|
||||
cli.BoolFlag{
|
||||
Name: "D, -debug",
|
||||
Usage: "Enable debug mode",
|
||||
},
|
||||
cli.StringFlag{
|
||||
Name: "c, -cfg-file",
|
||||
Value: "/etc/default/libnetwork.toml",
|
||||
Usage: "Configuration file",
|
||||
},
|
||||
}
|
||||
)
|
||||
|
||||
func processFlags(c *cli.Context) error {
|
||||
var err error
|
||||
|
||||
if c.String("l") != "" {
|
||||
lvl, err := logrus.ParseLevel(c.String("l"))
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to parse logging level: %s\n", c.String("l"))
|
||||
os.Exit(1)
|
||||
}
|
||||
logrus.SetLevel(lvl)
|
||||
} else {
|
||||
logrus.SetLevel(logrus.InfoLevel)
|
||||
}
|
||||
|
||||
if c.Bool("D") {
|
||||
logrus.SetLevel(logrus.DebugLevel)
|
||||
}
|
||||
|
||||
hostFlag := c.String("H")
|
||||
if hostFlag == "" {
|
||||
defaultHost := os.Getenv("DNET_HOST")
|
||||
if defaultHost == "" {
|
||||
// TODO : Add UDS support
|
||||
defaultHost = fmt.Sprintf("tcp://%s:%d", DefaultHTTPHost, DefaultHTTPPort)
|
||||
}
|
||||
hostFlag = defaultHost
|
||||
}
|
||||
|
||||
epConn, err = newDnetConnection(hostFlag)
|
||||
if err != nil {
|
||||
if c.Bool("d") {
|
||||
logrus.Error(err)
|
||||
} else {
|
||||
fmt.Println(err)
|
||||
}
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
if c.Bool("d") {
|
||||
err = epConn.dnetDaemon(c.String("c"))
|
||||
if err != nil {
|
||||
logrus.Errorf("dnet Daemon exited with an error : %v", err)
|
||||
os.Exit(1)
|
||||
}
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
|
@ -1,16 +0,0 @@
|
|||
title = "LibNetwork Configuration file"
|
||||
|
||||
[daemon]
|
||||
debug = false
|
||||
[cluster]
|
||||
discovery = "consul://localhost:8500"
|
||||
Address = "1.1.1.1"
|
||||
Heartbeat = 20
|
||||
[datastore]
|
||||
embedded = false
|
||||
[datastore.client]
|
||||
provider = "consul"
|
||||
Address = "localhost:8500"
|
||||
[orchestration]
|
||||
agent = true
|
||||
peer="2.2.2.2"
|
||||
|
|
@ -61,7 +61,6 @@ github.com/docker/libkv 458977154600b9f23984d9f4b82e
|
|||
github.com/vishvananda/netns db3c7e526aae966c4ccfa6c8189b693d6ac5d202
|
||||
github.com/vishvananda/netlink f049be6f391489d3f374498fe0c8df8449258372 # v1.1.0
|
||||
github.com/moby/ipvs 4566ccea0e08d68e9614c3e7a64a23b850c4bb35 # v1.0.1
|
||||
github.com/urfave/cli a65b733b303f0055f8d324d805f393cd3e7a7904
|
||||
|
||||
github.com/samuel/go-zookeeper d0e0d8e11f318e000a8cc434616d69e329edc374
|
||||
github.com/deckarep/golang-set ef32fa3046d9f249d399f98ebaf9be944430fd1d
|
||||
|
|
|
|||
21
vendor/github.com/urfave/cli/LICENSE
generated
vendored
21
vendor/github.com/urfave/cli/LICENSE
generated
vendored
|
|
@ -1,21 +0,0 @@
|
|||
Copyright (C) 2013 Jeremy Saenz
|
||||
All Rights Reserved.
|
||||
|
||||
MIT LICENSE
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
||||
the Software, and to permit persons to whom the Software is furnished to do so,
|
||||
subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
||||
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
||||
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
316
vendor/github.com/urfave/cli/README.md
generated
vendored
316
vendor/github.com/urfave/cli/README.md
generated
vendored
|
|
@ -1,316 +0,0 @@
|
|||
[](https://travis-ci.org/codegangsta/cli)
|
||||
|
||||
# cli.go
|
||||
`cli.go` is simple, fast, and fun package for building command line apps in Go. The goal is to enable developers to write fast and distributable command line applications in an expressive way.
|
||||
|
||||
You can view the API docs here:
|
||||
http://godoc.org/github.com/codegangsta/cli
|
||||
|
||||
## Overview
|
||||
Command line apps are usually so tiny that there is absolutely no reason why your code should *not* be self-documenting. Things like generating help text and parsing command flags/options should not hinder productivity when writing a command line app.
|
||||
|
||||
**This is where `cli.go` comes into play.** `cli.go` makes command line programming fun, organized, and expressive!
|
||||
|
||||
## Installation
|
||||
Make sure you have a working Go environment (go 1.1+ is *required*). [See the install instructions](http://golang.org/doc/install.html).
|
||||
|
||||
To install `cli.go`, simply run:
|
||||
```
|
||||
$ go get github.com/codegangsta/cli
|
||||
```
|
||||
|
||||
Make sure your `PATH` includes to the `$GOPATH/bin` directory so your commands can be easily used:
|
||||
```
|
||||
export PATH=$PATH:$GOPATH/bin
|
||||
```
|
||||
|
||||
## Getting Started
|
||||
One of the philosophies behind `cli.go` is that an API should be playful and full of discovery. So a `cli.go` app can be as little as one line of code in `main()`.
|
||||
|
||||
``` go
|
||||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
"github.com/codegangsta/cli"
|
||||
)
|
||||
|
||||
func main() {
|
||||
cli.NewApp().Run(os.Args)
|
||||
}
|
||||
```
|
||||
|
||||
This app will run and show help text, but is not very useful. Let's give an action to execute and some help documentation:
|
||||
|
||||
``` go
|
||||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
"github.com/codegangsta/cli"
|
||||
)
|
||||
|
||||
func main() {
|
||||
app := cli.NewApp()
|
||||
app.Name = "boom"
|
||||
app.Usage = "make an explosive entrance"
|
||||
app.Action = func(c *cli.Context) {
|
||||
println("boom! I say!")
|
||||
}
|
||||
|
||||
app.Run(os.Args)
|
||||
}
|
||||
```
|
||||
|
||||
Running this already gives you a ton of functionality, plus support for things like subcommands and flags, which are covered below.
|
||||
|
||||
## Example
|
||||
|
||||
Being a programmer can be a lonely job. Thankfully by the power of automation that is not the case! Let's create a greeter app to fend off our demons of loneliness!
|
||||
|
||||
Start by creating a directory named `greet`, and within it, add a file, `greet.go` with the following code in it:
|
||||
|
||||
``` go
|
||||
package main
|
||||
|
||||
import (
|
||||
"os"
|
||||
"github.com/codegangsta/cli"
|
||||
)
|
||||
|
||||
func main() {
|
||||
app := cli.NewApp()
|
||||
app.Name = "greet"
|
||||
app.Usage = "fight the loneliness!"
|
||||
app.Action = func(c *cli.Context) {
|
||||
println("Hello friend!")
|
||||
}
|
||||
|
||||
app.Run(os.Args)
|
||||
}
|
||||
```
|
||||
|
||||
Install our command to the `$GOPATH/bin` directory:
|
||||
|
||||
```
|
||||
$ go install
|
||||
```
|
||||
|
||||
Finally run our new command:
|
||||
|
||||
```
|
||||
$ greet
|
||||
Hello friend!
|
||||
```
|
||||
|
||||
`cli.go` also generates some bitchass help text:
|
||||
|
||||
```
|
||||
$ greet help
|
||||
NAME:
|
||||
greet - fight the loneliness!
|
||||
|
||||
USAGE:
|
||||
greet [global options] command [command options] [arguments...]
|
||||
|
||||
VERSION:
|
||||
0.0.0
|
||||
|
||||
COMMANDS:
|
||||
help, h Shows a list of commands or help for one command
|
||||
|
||||
GLOBAL OPTIONS
|
||||
--version Shows version information
|
||||
```
|
||||
|
||||
### Arguments
|
||||
You can lookup arguments by calling the `Args` function on `cli.Context`.
|
||||
|
||||
``` go
|
||||
...
|
||||
app.Action = func(c *cli.Context) {
|
||||
println("Hello", c.Args()[0])
|
||||
}
|
||||
...
|
||||
```
|
||||
|
||||
### Flags
|
||||
Setting and querying flags is simple.
|
||||
``` go
|
||||
...
|
||||
app.Flags = []cli.Flag {
|
||||
cli.StringFlag{
|
||||
Name: "lang",
|
||||
Value: "english",
|
||||
Usage: "language for the greeting",
|
||||
},
|
||||
}
|
||||
app.Action = func(c *cli.Context) {
|
||||
name := "someone"
|
||||
if len(c.Args()) > 0 {
|
||||
name = c.Args()[0]
|
||||
}
|
||||
if c.String("lang") == "spanish" {
|
||||
println("Hola", name)
|
||||
} else {
|
||||
println("Hello", name)
|
||||
}
|
||||
}
|
||||
...
|
||||
```
|
||||
|
||||
See full list of flags at http://godoc.org/github.com/codegangsta/cli
|
||||
|
||||
#### Alternate Names
|
||||
|
||||
You can set alternate (or short) names for flags by providing a comma-delimited list for the `Name`. e.g.
|
||||
|
||||
``` go
|
||||
app.Flags = []cli.Flag {
|
||||
cli.StringFlag{
|
||||
Name: "lang, l",
|
||||
Value: "english",
|
||||
Usage: "language for the greeting",
|
||||
},
|
||||
}
|
||||
```
|
||||
|
||||
That flag can then be set with `--lang spanish` or `-l spanish`. Note that giving two different forms of the same flag in the same command invocation is an error.
|
||||
|
||||
#### Values from the Environment
|
||||
|
||||
You can also have the default value set from the environment via `EnvVar`. e.g.
|
||||
|
||||
``` go
|
||||
app.Flags = []cli.Flag {
|
||||
cli.StringFlag{
|
||||
Name: "lang, l",
|
||||
Value: "english",
|
||||
Usage: "language for the greeting",
|
||||
EnvVar: "APP_LANG",
|
||||
},
|
||||
}
|
||||
```
|
||||
|
||||
The `EnvVar` may also be given as a comma-delimited "cascade", where the first environment variable that resolves is used as the default.
|
||||
|
||||
``` go
|
||||
app.Flags = []cli.Flag {
|
||||
cli.StringFlag{
|
||||
Name: "lang, l",
|
||||
Value: "english",
|
||||
Usage: "language for the greeting",
|
||||
EnvVar: "LEGACY_COMPAT_LANG,APP_LANG,LANG",
|
||||
},
|
||||
}
|
||||
```
|
||||
|
||||
### Subcommands
|
||||
|
||||
Subcommands can be defined for a more git-like command line app.
|
||||
```go
|
||||
...
|
||||
app.Commands = []cli.Command{
|
||||
{
|
||||
Name: "add",
|
||||
Aliases: []string{"a"},
|
||||
Usage: "add a task to the list",
|
||||
Action: func(c *cli.Context) {
|
||||
println("added task: ", c.Args().First())
|
||||
},
|
||||
},
|
||||
{
|
||||
Name: "complete",
|
||||
Aliases: []string{"c"},
|
||||
Usage: "complete a task on the list",
|
||||
Action: func(c *cli.Context) {
|
||||
println("completed task: ", c.Args().First())
|
||||
},
|
||||
},
|
||||
{
|
||||
Name: "template",
|
||||
Aliases: []string{"r"},
|
||||
Usage: "options for task templates",
|
||||
Subcommands: []cli.Command{
|
||||
{
|
||||
Name: "add",
|
||||
Usage: "add a new template",
|
||||
Action: func(c *cli.Context) {
|
||||
println("new task template: ", c.Args().First())
|
||||
},
|
||||
},
|
||||
{
|
||||
Name: "remove",
|
||||
Usage: "remove an existing template",
|
||||
Action: func(c *cli.Context) {
|
||||
println("removed task template: ", c.Args().First())
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
...
|
||||
```
|
||||
|
||||
### Bash Completion
|
||||
|
||||
You can enable completion commands by setting the `EnableBashCompletion`
|
||||
flag on the `App` object. By default, this setting will only auto-complete to
|
||||
show an app's subcommands, but you can write your own completion methods for
|
||||
the App or its subcommands.
|
||||
```go
|
||||
...
|
||||
var tasks = []string{"cook", "clean", "laundry", "eat", "sleep", "code"}
|
||||
app := cli.NewApp()
|
||||
app.EnableBashCompletion = true
|
||||
app.Commands = []cli.Command{
|
||||
{
|
||||
Name: "complete",
|
||||
Aliases: []string{"c"},
|
||||
Usage: "complete a task on the list",
|
||||
Action: func(c *cli.Context) {
|
||||
println("completed task: ", c.Args().First())
|
||||
},
|
||||
BashComplete: func(c *cli.Context) {
|
||||
// This will complete if no args are passed
|
||||
if len(c.Args()) > 0 {
|
||||
return
|
||||
}
|
||||
for _, t := range tasks {
|
||||
fmt.Println(t)
|
||||
}
|
||||
},
|
||||
}
|
||||
}
|
||||
...
|
||||
```
|
||||
|
||||
#### To Enable
|
||||
|
||||
Source the `autocomplete/bash_autocomplete` file in your `.bashrc` file while
|
||||
setting the `PROG` variable to the name of your program:
|
||||
|
||||
`PROG=myprogram source /.../cli/autocomplete/bash_autocomplete`
|
||||
|
||||
#### To Distribute
|
||||
|
||||
Copy `autocomplete/bash_autocomplete` into `/etc/bash_completion.d/` and rename
|
||||
it to the name of the program you wish to add autocomplete support for (or
|
||||
automatically install it there if you are distributing a package). Don't forget
|
||||
to source the file to make it active in the current shell.
|
||||
|
||||
```
|
||||
sudo cp src/bash_autocomplete /etc/bash_completion.d/<myprogram>
|
||||
source /etc/bash_completion.d/<myprogram>
|
||||
```
|
||||
|
||||
Alternatively, you can just document that users should source the generic
|
||||
`autocomplete/bash_autocomplete` in their bash configuration with `$PROG` set
|
||||
to the name of their program (as above).
|
||||
|
||||
## Contribution Guidelines
|
||||
Feel free to put up a pull request to fix a bug or maybe add a feature. I will give it a code review and make sure that it does not break backwards compatibility. If I or any other collaborators agree that it is in line with the vision of the project, we will work with you to get the code into a mergeable state and merge it into the master branch.
|
||||
|
||||
If you have contributed something significant to the project, I will most likely add you as a collaborator. As a collaborator you are given the ability to merge others pull requests. It is very important that new code does not break existing code, so be careful about what code you do choose to merge. If you have any questions feel free to link @codegangsta to the issue in question and we can review it together.
|
||||
|
||||
If you feel like you have contributed to the project but have not yet been added as a collaborator, I probably forgot to add you. Hit @codegangsta up over email and we will get it figured out.
|
||||
308
vendor/github.com/urfave/cli/app.go
generated
vendored
308
vendor/github.com/urfave/cli/app.go
generated
vendored
|
|
@ -1,308 +0,0 @@
|
|||
package cli
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"time"
|
||||
)
|
||||
|
||||
// App is the main structure of a cli application. It is recomended that
|
||||
// an app be created with the cli.NewApp() function
|
||||
type App struct {
|
||||
// The name of the program. Defaults to os.Args[0]
|
||||
Name string
|
||||
// Description of the program.
|
||||
Usage string
|
||||
// Version of the program
|
||||
Version string
|
||||
// List of commands to execute
|
||||
Commands []Command
|
||||
// List of flags to parse
|
||||
Flags []Flag
|
||||
// Boolean to enable bash completion commands
|
||||
EnableBashCompletion bool
|
||||
// Boolean to hide built-in help command
|
||||
HideHelp bool
|
||||
// Boolean to hide built-in version flag
|
||||
HideVersion bool
|
||||
// An action to execute when the bash-completion flag is set
|
||||
BashComplete func(context *Context)
|
||||
// An action to execute before any subcommands are run, but after the context is ready
|
||||
// If a non-nil error is returned, no subcommands are run
|
||||
Before func(context *Context) error
|
||||
// An action to execute after any subcommands are run, but after the subcommand has finished
|
||||
// It is run even if Action() panics
|
||||
After func(context *Context) error
|
||||
// The action to execute when no subcommands are specified
|
||||
Action func(context *Context)
|
||||
// Execute this function if the proper command cannot be found
|
||||
CommandNotFound func(context *Context, command string)
|
||||
// Compilation date
|
||||
Compiled time.Time
|
||||
// List of all authors who contributed
|
||||
Authors []Author
|
||||
// Copyright of the binary if any
|
||||
Copyright string
|
||||
// Name of Author (Note: Use App.Authors, this is deprecated)
|
||||
Author string
|
||||
// Email of Author (Note: Use App.Authors, this is deprecated)
|
||||
Email string
|
||||
// Writer writer to write output to
|
||||
Writer io.Writer
|
||||
}
|
||||
|
||||
// Tries to find out when this binary was compiled.
|
||||
// Returns the current time if it fails to find it.
|
||||
func compileTime() time.Time {
|
||||
info, err := os.Stat(os.Args[0])
|
||||
if err != nil {
|
||||
return time.Now()
|
||||
}
|
||||
return info.ModTime()
|
||||
}
|
||||
|
||||
// Creates a new cli Application with some reasonable defaults for Name, Usage, Version and Action.
|
||||
func NewApp() *App {
|
||||
return &App{
|
||||
Name: os.Args[0],
|
||||
Usage: "A new cli application",
|
||||
Version: "0.0.0",
|
||||
BashComplete: DefaultAppComplete,
|
||||
Action: helpCommand.Action,
|
||||
Compiled: compileTime(),
|
||||
Writer: os.Stdout,
|
||||
}
|
||||
}
|
||||
|
||||
// Entry point to the cli app. Parses the arguments slice and routes to the proper flag/args combination
|
||||
func (a *App) Run(arguments []string) (err error) {
|
||||
if a.Author != "" || a.Email != "" {
|
||||
a.Authors = append(a.Authors, Author{Name: a.Author, Email: a.Email})
|
||||
}
|
||||
|
||||
// append help to commands
|
||||
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
|
||||
a.Commands = append(a.Commands, helpCommand)
|
||||
if (HelpFlag != BoolFlag{}) {
|
||||
a.appendFlag(HelpFlag)
|
||||
}
|
||||
}
|
||||
|
||||
//append version/help flags
|
||||
if a.EnableBashCompletion {
|
||||
a.appendFlag(BashCompletionFlag)
|
||||
}
|
||||
|
||||
if !a.HideVersion {
|
||||
a.appendFlag(VersionFlag)
|
||||
}
|
||||
|
||||
// parse flags
|
||||
set := flagSet(a.Name, a.Flags)
|
||||
set.SetOutput(ioutil.Discard)
|
||||
err = set.Parse(arguments[1:])
|
||||
nerr := normalizeFlags(a.Flags, set)
|
||||
if nerr != nil {
|
||||
fmt.Fprintln(a.Writer, nerr)
|
||||
context := NewContext(a, set, nil)
|
||||
ShowAppHelp(context)
|
||||
return nerr
|
||||
}
|
||||
context := NewContext(a, set, nil)
|
||||
|
||||
if err != nil {
|
||||
fmt.Fprintln(a.Writer, "Incorrect Usage.")
|
||||
fmt.Fprintln(a.Writer)
|
||||
ShowAppHelp(context)
|
||||
return err
|
||||
}
|
||||
|
||||
if checkCompletions(context) {
|
||||
return nil
|
||||
}
|
||||
|
||||
if checkHelp(context) {
|
||||
return nil
|
||||
}
|
||||
|
||||
if checkVersion(context) {
|
||||
return nil
|
||||
}
|
||||
|
||||
if a.After != nil {
|
||||
defer func() {
|
||||
afterErr := a.After(context)
|
||||
if afterErr != nil {
|
||||
if err != nil {
|
||||
err = NewMultiError(err, afterErr)
|
||||
} else {
|
||||
err = afterErr
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
if a.Before != nil {
|
||||
err := a.Before(context)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
args := context.Args()
|
||||
if args.Present() {
|
||||
name := args.First()
|
||||
c := a.Command(name)
|
||||
if c != nil {
|
||||
return c.Run(context)
|
||||
}
|
||||
}
|
||||
|
||||
// Run default Action
|
||||
a.Action(context)
|
||||
return nil
|
||||
}
|
||||
|
||||
// Another entry point to the cli app, takes care of passing arguments and error handling
|
||||
func (a *App) RunAndExitOnError() {
|
||||
if err := a.Run(os.Args); err != nil {
|
||||
fmt.Fprintln(os.Stderr, err)
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
||||
// Invokes the subcommand given the context, parses ctx.Args() to generate command-specific flags
|
||||
func (a *App) RunAsSubcommand(ctx *Context) (err error) {
|
||||
// append help to commands
|
||||
if len(a.Commands) > 0 {
|
||||
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
|
||||
a.Commands = append(a.Commands, helpCommand)
|
||||
if (HelpFlag != BoolFlag{}) {
|
||||
a.appendFlag(HelpFlag)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// append flags
|
||||
if a.EnableBashCompletion {
|
||||
a.appendFlag(BashCompletionFlag)
|
||||
}
|
||||
|
||||
// parse flags
|
||||
set := flagSet(a.Name, a.Flags)
|
||||
set.SetOutput(ioutil.Discard)
|
||||
err = set.Parse(ctx.Args().Tail())
|
||||
nerr := normalizeFlags(a.Flags, set)
|
||||
context := NewContext(a, set, ctx)
|
||||
|
||||
if nerr != nil {
|
||||
fmt.Fprintln(a.Writer, nerr)
|
||||
fmt.Fprintln(a.Writer)
|
||||
if len(a.Commands) > 0 {
|
||||
ShowSubcommandHelp(context)
|
||||
} else {
|
||||
ShowCommandHelp(ctx, context.Args().First())
|
||||
}
|
||||
return nerr
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
fmt.Fprintln(a.Writer, "Incorrect Usage.")
|
||||
fmt.Fprintln(a.Writer)
|
||||
ShowSubcommandHelp(context)
|
||||
return err
|
||||
}
|
||||
|
||||
if checkCompletions(context) {
|
||||
return nil
|
||||
}
|
||||
|
||||
if len(a.Commands) > 0 {
|
||||
if checkSubcommandHelp(context) {
|
||||
return nil
|
||||
}
|
||||
} else {
|
||||
if checkCommandHelp(ctx, context.Args().First()) {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
if a.After != nil {
|
||||
defer func() {
|
||||
afterErr := a.After(context)
|
||||
if afterErr != nil {
|
||||
if err != nil {
|
||||
err = NewMultiError(err, afterErr)
|
||||
} else {
|
||||
err = afterErr
|
||||
}
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
if a.Before != nil {
|
||||
err := a.Before(context)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
args := context.Args()
|
||||
if args.Present() {
|
||||
name := args.First()
|
||||
c := a.Command(name)
|
||||
if c != nil {
|
||||
return c.Run(context)
|
||||
}
|
||||
}
|
||||
|
||||
// Run default Action
|
||||
a.Action(context)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Returns the named command on App. Returns nil if the command does not exist
|
||||
func (a *App) Command(name string) *Command {
|
||||
for _, c := range a.Commands {
|
||||
if c.HasName(name) {
|
||||
return &c
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (a *App) hasFlag(flag Flag) bool {
|
||||
for _, f := range a.Flags {
|
||||
if flag == f {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func (a *App) appendFlag(flag Flag) {
|
||||
if !a.hasFlag(flag) {
|
||||
a.Flags = append(a.Flags, flag)
|
||||
}
|
||||
}
|
||||
|
||||
// Author represents someone who has contributed to a cli project.
|
||||
type Author struct {
|
||||
Name string // The Authors name
|
||||
Email string // The Authors email
|
||||
}
|
||||
|
||||
// String makes Author comply to the Stringer interface, to allow an easy print in the templating process
|
||||
func (a Author) String() string {
|
||||
e := ""
|
||||
if a.Email != "" {
|
||||
e = "<" + a.Email + "> "
|
||||
}
|
||||
|
||||
return fmt.Sprintf("%v %v", a.Name, e)
|
||||
}
|
||||
40
vendor/github.com/urfave/cli/cli.go
generated
vendored
40
vendor/github.com/urfave/cli/cli.go
generated
vendored
|
|
@ -1,40 +0,0 @@
|
|||
// Package cli provides a minimal framework for creating and organizing command line
|
||||
// Go applications. cli is designed to be easy to understand and write, the most simple
|
||||
// cli application can be written as follows:
|
||||
// func main() {
|
||||
// cli.NewApp().Run(os.Args)
|
||||
// }
|
||||
//
|
||||
// Of course this application does not do much, so let's make this an actual application:
|
||||
// func main() {
|
||||
// app := cli.NewApp()
|
||||
// app.Name = "greet"
|
||||
// app.Usage = "say a greeting"
|
||||
// app.Action = func(c *cli.Context) {
|
||||
// println("Greetings")
|
||||
// }
|
||||
//
|
||||
// app.Run(os.Args)
|
||||
// }
|
||||
package cli
|
||||
|
||||
import (
|
||||
"strings"
|
||||
)
|
||||
|
||||
type MultiError struct {
|
||||
Errors []error
|
||||
}
|
||||
|
||||
func NewMultiError(err ...error) MultiError {
|
||||
return MultiError{Errors: err}
|
||||
}
|
||||
|
||||
func (m MultiError) Error() string {
|
||||
errs := make([]string, len(m.Errors))
|
||||
for i, err := range m.Errors {
|
||||
errs[i] = err.Error()
|
||||
}
|
||||
|
||||
return strings.Join(errs, "\n")
|
||||
}
|
||||
200
vendor/github.com/urfave/cli/command.go
generated
vendored
200
vendor/github.com/urfave/cli/command.go
generated
vendored
|
|
@ -1,200 +0,0 @@
|
|||
package cli
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// Command is a subcommand for a cli.App.
|
||||
type Command struct {
|
||||
// The name of the command
|
||||
Name string
|
||||
// short name of the command. Typically one character (deprecated, use `Aliases`)
|
||||
ShortName string
|
||||
// A list of aliases for the command
|
||||
Aliases []string
|
||||
// A short description of the usage of this command
|
||||
Usage string
|
||||
// A longer explanation of how the command works
|
||||
Description string
|
||||
// The function to call when checking for bash command completions
|
||||
BashComplete func(context *Context)
|
||||
// An action to execute before any sub-subcommands are run, but after the context is ready
|
||||
// If a non-nil error is returned, no sub-subcommands are run
|
||||
Before func(context *Context) error
|
||||
// An action to execute after any subcommands are run, but after the subcommand has finished
|
||||
// It is run even if Action() panics
|
||||
After func(context *Context) error
|
||||
// The function to call when this command is invoked
|
||||
Action func(context *Context)
|
||||
// List of child commands
|
||||
Subcommands []Command
|
||||
// List of flags to parse
|
||||
Flags []Flag
|
||||
// Treat all flags as normal arguments if true
|
||||
SkipFlagParsing bool
|
||||
// Boolean to hide built-in help command
|
||||
HideHelp bool
|
||||
|
||||
commandNamePath []string
|
||||
}
|
||||
|
||||
// Returns the full name of the command.
|
||||
// For subcommands this ensures that parent commands are part of the command path
|
||||
func (c Command) FullName() string {
|
||||
if c.commandNamePath == nil {
|
||||
return c.Name
|
||||
}
|
||||
return strings.Join(c.commandNamePath, " ")
|
||||
}
|
||||
|
||||
// Invokes the command given the context, parses ctx.Args() to generate command-specific flags
|
||||
func (c Command) Run(ctx *Context) error {
|
||||
if len(c.Subcommands) > 0 || c.Before != nil || c.After != nil {
|
||||
return c.startApp(ctx)
|
||||
}
|
||||
|
||||
if !c.HideHelp && (HelpFlag != BoolFlag{}) {
|
||||
// append help to flags
|
||||
c.Flags = append(
|
||||
c.Flags,
|
||||
HelpFlag,
|
||||
)
|
||||
}
|
||||
|
||||
if ctx.App.EnableBashCompletion {
|
||||
c.Flags = append(c.Flags, BashCompletionFlag)
|
||||
}
|
||||
|
||||
set := flagSet(c.Name, c.Flags)
|
||||
set.SetOutput(ioutil.Discard)
|
||||
|
||||
firstFlagIndex := -1
|
||||
terminatorIndex := -1
|
||||
for index, arg := range ctx.Args() {
|
||||
if arg == "--" {
|
||||
terminatorIndex = index
|
||||
break
|
||||
} else if strings.HasPrefix(arg, "-") && firstFlagIndex == -1 {
|
||||
firstFlagIndex = index
|
||||
}
|
||||
}
|
||||
|
||||
var err error
|
||||
if firstFlagIndex > -1 && !c.SkipFlagParsing {
|
||||
args := ctx.Args()
|
||||
regularArgs := make([]string, len(args[1:firstFlagIndex]))
|
||||
copy(regularArgs, args[1:firstFlagIndex])
|
||||
|
||||
var flagArgs []string
|
||||
if terminatorIndex > -1 {
|
||||
flagArgs = args[firstFlagIndex:terminatorIndex]
|
||||
regularArgs = append(regularArgs, args[terminatorIndex:]...)
|
||||
} else {
|
||||
flagArgs = args[firstFlagIndex:]
|
||||
}
|
||||
|
||||
err = set.Parse(append(flagArgs, regularArgs...))
|
||||
} else {
|
||||
err = set.Parse(ctx.Args().Tail())
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
fmt.Fprintln(ctx.App.Writer, "Incorrect Usage.")
|
||||
fmt.Fprintln(ctx.App.Writer)
|
||||
ShowCommandHelp(ctx, c.Name)
|
||||
return err
|
||||
}
|
||||
|
||||
nerr := normalizeFlags(c.Flags, set)
|
||||
if nerr != nil {
|
||||
fmt.Fprintln(ctx.App.Writer, nerr)
|
||||
fmt.Fprintln(ctx.App.Writer)
|
||||
ShowCommandHelp(ctx, c.Name)
|
||||
return nerr
|
||||
}
|
||||
context := NewContext(ctx.App, set, ctx)
|
||||
|
||||
if checkCommandCompletions(context, c.Name) {
|
||||
return nil
|
||||
}
|
||||
|
||||
if checkCommandHelp(context, c.Name) {
|
||||
return nil
|
||||
}
|
||||
context.Command = c
|
||||
c.Action(context)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (c Command) Names() []string {
|
||||
names := []string{c.Name}
|
||||
|
||||
if c.ShortName != "" {
|
||||
names = append(names, c.ShortName)
|
||||
}
|
||||
|
||||
return append(names, c.Aliases...)
|
||||
}
|
||||
|
||||
// Returns true if Command.Name or Command.ShortName matches given name
|
||||
func (c Command) HasName(name string) bool {
|
||||
for _, n := range c.Names() {
|
||||
if n == name {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (c Command) startApp(ctx *Context) error {
|
||||
app := NewApp()
|
||||
|
||||
// set the name and usage
|
||||
app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
|
||||
if c.Description != "" {
|
||||
app.Usage = c.Description
|
||||
} else {
|
||||
app.Usage = c.Usage
|
||||
}
|
||||
|
||||
// set CommandNotFound
|
||||
app.CommandNotFound = ctx.App.CommandNotFound
|
||||
|
||||
// set the flags and commands
|
||||
app.Commands = c.Subcommands
|
||||
app.Flags = c.Flags
|
||||
app.HideHelp = c.HideHelp
|
||||
|
||||
app.Version = ctx.App.Version
|
||||
app.HideVersion = ctx.App.HideVersion
|
||||
app.Compiled = ctx.App.Compiled
|
||||
app.Author = ctx.App.Author
|
||||
app.Email = ctx.App.Email
|
||||
app.Writer = ctx.App.Writer
|
||||
|
||||
// bash completion
|
||||
app.EnableBashCompletion = ctx.App.EnableBashCompletion
|
||||
if c.BashComplete != nil {
|
||||
app.BashComplete = c.BashComplete
|
||||
}
|
||||
|
||||
// set the actions
|
||||
app.Before = c.Before
|
||||
app.After = c.After
|
||||
if c.Action != nil {
|
||||
app.Action = c.Action
|
||||
} else {
|
||||
app.Action = helpSubcommand.Action
|
||||
}
|
||||
|
||||
var newCmds []Command
|
||||
for _, cc := range app.Commands {
|
||||
cc.commandNamePath = []string{c.Name, cc.Name}
|
||||
newCmds = append(newCmds, cc)
|
||||
}
|
||||
app.Commands = newCmds
|
||||
|
||||
return app.RunAsSubcommand(ctx)
|
||||
}
|
||||
388
vendor/github.com/urfave/cli/context.go
generated
vendored
388
vendor/github.com/urfave/cli/context.go
generated
vendored
|
|
@ -1,388 +0,0 @@
|
|||
package cli
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"flag"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
// Context is a type that is passed through to
|
||||
// each Handler action in a cli application. Context
|
||||
// can be used to retrieve context-specific Args and
|
||||
// parsed command-line options.
|
||||
type Context struct {
|
||||
App *App
|
||||
Command Command
|
||||
flagSet *flag.FlagSet
|
||||
setFlags map[string]bool
|
||||
globalSetFlags map[string]bool
|
||||
parentContext *Context
|
||||
}
|
||||
|
||||
// Creates a new context. For use in when invoking an App or Command action.
|
||||
func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context {
|
||||
return &Context{App: app, flagSet: set, parentContext: parentCtx}
|
||||
}
|
||||
|
||||
// Looks up the value of a local int flag, returns 0 if no int flag exists
|
||||
func (c *Context) Int(name string) int {
|
||||
return lookupInt(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a local time.Duration flag, returns 0 if no time.Duration flag exists
|
||||
func (c *Context) Duration(name string) time.Duration {
|
||||
return lookupDuration(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a local float64 flag, returns 0 if no float64 flag exists
|
||||
func (c *Context) Float64(name string) float64 {
|
||||
return lookupFloat64(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a local bool flag, returns false if no bool flag exists
|
||||
func (c *Context) Bool(name string) bool {
|
||||
return lookupBool(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a local boolT flag, returns false if no bool flag exists
|
||||
func (c *Context) BoolT(name string) bool {
|
||||
return lookupBoolT(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a local string flag, returns "" if no string flag exists
|
||||
func (c *Context) String(name string) string {
|
||||
return lookupString(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a local string slice flag, returns nil if no string slice flag exists
|
||||
func (c *Context) StringSlice(name string) []string {
|
||||
return lookupStringSlice(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a local int slice flag, returns nil if no int slice flag exists
|
||||
func (c *Context) IntSlice(name string) []int {
|
||||
return lookupIntSlice(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a local generic flag, returns nil if no generic flag exists
|
||||
func (c *Context) Generic(name string) interface{} {
|
||||
return lookupGeneric(name, c.flagSet)
|
||||
}
|
||||
|
||||
// Looks up the value of a global int flag, returns 0 if no int flag exists
|
||||
func (c *Context) GlobalInt(name string) int {
|
||||
if fs := lookupGlobalFlagSet(name, c); fs != nil {
|
||||
return lookupInt(name, fs)
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
// Looks up the value of a global time.Duration flag, returns 0 if no time.Duration flag exists
|
||||
func (c *Context) GlobalDuration(name string) time.Duration {
|
||||
if fs := lookupGlobalFlagSet(name, c); fs != nil {
|
||||
return lookupDuration(name, fs)
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
// Looks up the value of a global bool flag, returns false if no bool flag exists
|
||||
func (c *Context) GlobalBool(name string) bool {
|
||||
if fs := lookupGlobalFlagSet(name, c); fs != nil {
|
||||
return lookupBool(name, fs)
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Looks up the value of a global string flag, returns "" if no string flag exists
|
||||
func (c *Context) GlobalString(name string) string {
|
||||
if fs := lookupGlobalFlagSet(name, c); fs != nil {
|
||||
return lookupString(name, fs)
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// Looks up the value of a global string slice flag, returns nil if no string slice flag exists
|
||||
func (c *Context) GlobalStringSlice(name string) []string {
|
||||
if fs := lookupGlobalFlagSet(name, c); fs != nil {
|
||||
return lookupStringSlice(name, fs)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Looks up the value of a global int slice flag, returns nil if no int slice flag exists
|
||||
func (c *Context) GlobalIntSlice(name string) []int {
|
||||
if fs := lookupGlobalFlagSet(name, c); fs != nil {
|
||||
return lookupIntSlice(name, fs)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Looks up the value of a global generic flag, returns nil if no generic flag exists
|
||||
func (c *Context) GlobalGeneric(name string) interface{} {
|
||||
if fs := lookupGlobalFlagSet(name, c); fs != nil {
|
||||
return lookupGeneric(name, fs)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Returns the number of flags set
|
||||
func (c *Context) NumFlags() int {
|
||||
return c.flagSet.NFlag()
|
||||
}
|
||||
|
||||
// Determines if the flag was actually set
|
||||
func (c *Context) IsSet(name string) bool {
|
||||
if c.setFlags == nil {
|
||||
c.setFlags = make(map[string]bool)
|
||||
c.flagSet.Visit(func(f *flag.Flag) {
|
||||
c.setFlags[f.Name] = true
|
||||
})
|
||||
}
|
||||
return c.setFlags[name] == true
|
||||
}
|
||||
|
||||
// Determines if the global flag was actually set
|
||||
func (c *Context) GlobalIsSet(name string) bool {
|
||||
if c.globalSetFlags == nil {
|
||||
c.globalSetFlags = make(map[string]bool)
|
||||
ctx := c
|
||||
if ctx.parentContext != nil {
|
||||
ctx = ctx.parentContext
|
||||
}
|
||||
for ; ctx != nil && c.globalSetFlags[name] == false; ctx = ctx.parentContext {
|
||||
ctx.flagSet.Visit(func(f *flag.Flag) {
|
||||
c.globalSetFlags[f.Name] = true
|
||||
})
|
||||
}
|
||||
}
|
||||
return c.globalSetFlags[name]
|
||||
}
|
||||
|
||||
// Returns a slice of flag names used in this context.
|
||||
func (c *Context) FlagNames() (names []string) {
|
||||
for _, flag := range c.Command.Flags {
|
||||
name := strings.Split(flag.getName(), ",")[0]
|
||||
if name == "help" {
|
||||
continue
|
||||
}
|
||||
names = append(names, name)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// Returns a slice of global flag names used by the app.
|
||||
func (c *Context) GlobalFlagNames() (names []string) {
|
||||
for _, flag := range c.App.Flags {
|
||||
name := strings.Split(flag.getName(), ",")[0]
|
||||
if name == "help" || name == "version" {
|
||||
continue
|
||||
}
|
||||
names = append(names, name)
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// Returns the parent context, if any
|
||||
func (c *Context) Parent() *Context {
|
||||
return c.parentContext
|
||||
}
|
||||
|
||||
type Args []string
|
||||
|
||||
// Returns the command line arguments associated with the context.
|
||||
func (c *Context) Args() Args {
|
||||
args := Args(c.flagSet.Args())
|
||||
return args
|
||||
}
|
||||
|
||||
// Returns the nth argument, or else a blank string
|
||||
func (a Args) Get(n int) string {
|
||||
if len(a) > n {
|
||||
return a[n]
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// Returns the first argument, or else a blank string
|
||||
func (a Args) First() string {
|
||||
return a.Get(0)
|
||||
}
|
||||
|
||||
// Return the rest of the arguments (not the first one)
|
||||
// or else an empty string slice
|
||||
func (a Args) Tail() []string {
|
||||
if len(a) >= 2 {
|
||||
return []string(a)[1:]
|
||||
}
|
||||
return []string{}
|
||||
}
|
||||
|
||||
// Checks if there are any arguments present
|
||||
func (a Args) Present() bool {
|
||||
return len(a) != 0
|
||||
}
|
||||
|
||||
// Swaps arguments at the given indexes
|
||||
func (a Args) Swap(from, to int) error {
|
||||
if from >= len(a) || to >= len(a) {
|
||||
return errors.New("index out of range")
|
||||
}
|
||||
a[from], a[to] = a[to], a[from]
|
||||
return nil
|
||||
}
|
||||
|
||||
func lookupGlobalFlagSet(name string, ctx *Context) *flag.FlagSet {
|
||||
if ctx.parentContext != nil {
|
||||
ctx = ctx.parentContext
|
||||
}
|
||||
for ; ctx != nil; ctx = ctx.parentContext {
|
||||
if f := ctx.flagSet.Lookup(name); f != nil {
|
||||
return ctx.flagSet
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func lookupInt(name string, set *flag.FlagSet) int {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
val, err := strconv.Atoi(f.Value.String())
|
||||
if err != nil {
|
||||
return 0
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
func lookupDuration(name string, set *flag.FlagSet) time.Duration {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
val, err := time.ParseDuration(f.Value.String())
|
||||
if err == nil {
|
||||
return val
|
||||
}
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
func lookupFloat64(name string, set *flag.FlagSet) float64 {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
val, err := strconv.ParseFloat(f.Value.String(), 64)
|
||||
if err != nil {
|
||||
return 0
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
func lookupString(name string, set *flag.FlagSet) string {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
return f.Value.String()
|
||||
}
|
||||
|
||||
return ""
|
||||
}
|
||||
|
||||
func lookupStringSlice(name string, set *flag.FlagSet) []string {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
return (f.Value.(*StringSlice)).Value()
|
||||
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func lookupIntSlice(name string, set *flag.FlagSet) []int {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
return (f.Value.(*IntSlice)).Value()
|
||||
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func lookupGeneric(name string, set *flag.FlagSet) interface{} {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
return f.Value
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func lookupBool(name string, set *flag.FlagSet) bool {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
val, err := strconv.ParseBool(f.Value.String())
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func lookupBoolT(name string, set *flag.FlagSet) bool {
|
||||
f := set.Lookup(name)
|
||||
if f != nil {
|
||||
val, err := strconv.ParseBool(f.Value.String())
|
||||
if err != nil {
|
||||
return true
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) {
|
||||
switch ff.Value.(type) {
|
||||
case *StringSlice:
|
||||
default:
|
||||
set.Set(name, ff.Value.String())
|
||||
}
|
||||
}
|
||||
|
||||
func normalizeFlags(flags []Flag, set *flag.FlagSet) error {
|
||||
visited := make(map[string]bool)
|
||||
set.Visit(func(f *flag.Flag) {
|
||||
visited[f.Name] = true
|
||||
})
|
||||
for _, f := range flags {
|
||||
parts := strings.Split(f.getName(), ",")
|
||||
if len(parts) == 1 {
|
||||
continue
|
||||
}
|
||||
var ff *flag.Flag
|
||||
for _, name := range parts {
|
||||
name = strings.Trim(name, " ")
|
||||
if visited[name] {
|
||||
if ff != nil {
|
||||
return errors.New("Cannot use two forms of the same flag: " + name + " " + ff.Name)
|
||||
}
|
||||
ff = set.Lookup(name)
|
||||
}
|
||||
}
|
||||
if ff == nil {
|
||||
continue
|
||||
}
|
||||
for _, name := range parts {
|
||||
name = strings.Trim(name, " ")
|
||||
if !visited[name] {
|
||||
copyFlag(name, ff, set)
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
497
vendor/github.com/urfave/cli/flag.go
generated
vendored
497
vendor/github.com/urfave/cli/flag.go
generated
vendored
|
|
@ -1,497 +0,0 @@
|
|||
package cli
|
||||
|
||||
import (
|
||||
"flag"
|
||||
"fmt"
|
||||
"os"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
// This flag enables bash-completion for all commands and subcommands
|
||||
var BashCompletionFlag = BoolFlag{
|
||||
Name: "generate-bash-completion",
|
||||
}
|
||||
|
||||
// This flag prints the version for the application
|
||||
var VersionFlag = BoolFlag{
|
||||
Name: "version, v",
|
||||
Usage: "print the version",
|
||||
}
|
||||
|
||||
// This flag prints the help for all commands and subcommands
|
||||
// Set to the zero value (BoolFlag{}) to disable flag -- keeps subcommand
|
||||
// unless HideHelp is set to true)
|
||||
var HelpFlag = BoolFlag{
|
||||
Name: "help, h",
|
||||
Usage: "show help",
|
||||
}
|
||||
|
||||
// Flag is a common interface related to parsing flags in cli.
|
||||
// For more advanced flag parsing techniques, it is recomended that
|
||||
// this interface be implemented.
|
||||
type Flag interface {
|
||||
fmt.Stringer
|
||||
// Apply Flag settings to the given flag set
|
||||
Apply(*flag.FlagSet)
|
||||
getName() string
|
||||
}
|
||||
|
||||
func flagSet(name string, flags []Flag) *flag.FlagSet {
|
||||
set := flag.NewFlagSet(name, flag.ContinueOnError)
|
||||
|
||||
for _, f := range flags {
|
||||
f.Apply(set)
|
||||
}
|
||||
return set
|
||||
}
|
||||
|
||||
func eachName(longName string, fn func(string)) {
|
||||
parts := strings.Split(longName, ",")
|
||||
for _, name := range parts {
|
||||
name = strings.Trim(name, " ")
|
||||
fn(name)
|
||||
}
|
||||
}
|
||||
|
||||
// Generic is a generic parseable type identified by a specific flag
|
||||
type Generic interface {
|
||||
Set(value string) error
|
||||
String() string
|
||||
}
|
||||
|
||||
// GenericFlag is the flag type for types implementing Generic
|
||||
type GenericFlag struct {
|
||||
Name string
|
||||
Value Generic
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns the string representation of the generic flag to display the
|
||||
// help text to the user (uses the String() method of the generic flag to show
|
||||
// the value)
|
||||
func (f GenericFlag) String() string {
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf("%s%s \"%v\"\t%v", prefixFor(f.Name), f.Name, f.Value, f.Usage))
|
||||
}
|
||||
|
||||
// Apply takes the flagset and calls Set on the generic flag with the value
|
||||
// provided by the user for parsing by the flag
|
||||
func (f GenericFlag) Apply(set *flag.FlagSet) {
|
||||
val := f.Value
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
val.Set(envVal)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
set.Var(f.Value, name, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f GenericFlag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
// StringSlice is an opaque type for []string to satisfy flag.Value
|
||||
type StringSlice []string
|
||||
|
||||
// Set appends the string value to the list of values
|
||||
func (f *StringSlice) Set(value string) error {
|
||||
*f = append(*f, value)
|
||||
return nil
|
||||
}
|
||||
|
||||
// String returns a readable representation of this value (for usage defaults)
|
||||
func (f *StringSlice) String() string {
|
||||
return fmt.Sprintf("%s", *f)
|
||||
}
|
||||
|
||||
// Value returns the slice of strings set by this flag
|
||||
func (f *StringSlice) Value() []string {
|
||||
return *f
|
||||
}
|
||||
|
||||
// StringSlice is a string flag that can be specified multiple times on the
|
||||
// command-line
|
||||
type StringSliceFlag struct {
|
||||
Name string
|
||||
Value *StringSlice
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns the usage
|
||||
func (f StringSliceFlag) String() string {
|
||||
firstName := strings.Trim(strings.Split(f.Name, ",")[0], " ")
|
||||
pref := prefixFor(firstName)
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf("%s [%v]\t%v", prefixedNames(f.Name), pref+firstName+" option "+pref+firstName+" option", f.Usage))
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
func (f StringSliceFlag) Apply(set *flag.FlagSet) {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
newVal := &StringSlice{}
|
||||
for _, s := range strings.Split(envVal, ",") {
|
||||
s = strings.TrimSpace(s)
|
||||
newVal.Set(s)
|
||||
}
|
||||
f.Value = newVal
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
if f.Value == nil {
|
||||
f.Value = &StringSlice{}
|
||||
}
|
||||
set.Var(f.Value, name, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f StringSliceFlag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
// StringSlice is an opaque type for []int to satisfy flag.Value
|
||||
type IntSlice []int
|
||||
|
||||
// Set parses the value into an integer and appends it to the list of values
|
||||
func (f *IntSlice) Set(value string) error {
|
||||
tmp, err := strconv.Atoi(value)
|
||||
if err != nil {
|
||||
return err
|
||||
} else {
|
||||
*f = append(*f, tmp)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// String returns a readable representation of this value (for usage defaults)
|
||||
func (f *IntSlice) String() string {
|
||||
return fmt.Sprintf("%d", *f)
|
||||
}
|
||||
|
||||
// Value returns the slice of ints set by this flag
|
||||
func (f *IntSlice) Value() []int {
|
||||
return *f
|
||||
}
|
||||
|
||||
// IntSliceFlag is an int flag that can be specified multiple times on the
|
||||
// command-line
|
||||
type IntSliceFlag struct {
|
||||
Name string
|
||||
Value *IntSlice
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns the usage
|
||||
func (f IntSliceFlag) String() string {
|
||||
firstName := strings.Trim(strings.Split(f.Name, ",")[0], " ")
|
||||
pref := prefixFor(firstName)
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf("%s [%v]\t%v", prefixedNames(f.Name), pref+firstName+" option "+pref+firstName+" option", f.Usage))
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
func (f IntSliceFlag) Apply(set *flag.FlagSet) {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
newVal := &IntSlice{}
|
||||
for _, s := range strings.Split(envVal, ",") {
|
||||
s = strings.TrimSpace(s)
|
||||
err := newVal.Set(s)
|
||||
if err != nil {
|
||||
fmt.Fprintf(os.Stderr, err.Error())
|
||||
}
|
||||
}
|
||||
f.Value = newVal
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
if f.Value == nil {
|
||||
f.Value = &IntSlice{}
|
||||
}
|
||||
set.Var(f.Value, name, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f IntSliceFlag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
// BoolFlag is a switch that defaults to false
|
||||
type BoolFlag struct {
|
||||
Name string
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns a readable representation of this value (for usage defaults)
|
||||
func (f BoolFlag) String() string {
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf("%s\t%v", prefixedNames(f.Name), f.Usage))
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
func (f BoolFlag) Apply(set *flag.FlagSet) {
|
||||
val := false
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
envValBool, err := strconv.ParseBool(envVal)
|
||||
if err == nil {
|
||||
val = envValBool
|
||||
}
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
set.Bool(name, val, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f BoolFlag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
// BoolTFlag this represents a boolean flag that is true by default, but can
|
||||
// still be set to false by --some-flag=false
|
||||
type BoolTFlag struct {
|
||||
Name string
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns a readable representation of this value (for usage defaults)
|
||||
func (f BoolTFlag) String() string {
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf("%s\t%v", prefixedNames(f.Name), f.Usage))
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
func (f BoolTFlag) Apply(set *flag.FlagSet) {
|
||||
val := true
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
envValBool, err := strconv.ParseBool(envVal)
|
||||
if err == nil {
|
||||
val = envValBool
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
set.Bool(name, val, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f BoolTFlag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
// StringFlag represents a flag that takes as string value
|
||||
type StringFlag struct {
|
||||
Name string
|
||||
Value string
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns the usage
|
||||
func (f StringFlag) String() string {
|
||||
var fmtString string
|
||||
fmtString = "%s %v\t%v"
|
||||
|
||||
if len(f.Value) > 0 {
|
||||
fmtString = "%s \"%v\"\t%v"
|
||||
} else {
|
||||
fmtString = "%s %v\t%v"
|
||||
}
|
||||
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf(fmtString, prefixedNames(f.Name), f.Value, f.Usage))
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
func (f StringFlag) Apply(set *flag.FlagSet) {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
f.Value = envVal
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
set.String(name, f.Value, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f StringFlag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
// IntFlag is a flag that takes an integer
|
||||
// Errors if the value provided cannot be parsed
|
||||
type IntFlag struct {
|
||||
Name string
|
||||
Value int
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns the usage
|
||||
func (f IntFlag) String() string {
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf("%s \"%v\"\t%v", prefixedNames(f.Name), f.Value, f.Usage))
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
func (f IntFlag) Apply(set *flag.FlagSet) {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
envValInt, err := strconv.ParseInt(envVal, 0, 64)
|
||||
if err == nil {
|
||||
f.Value = int(envValInt)
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
set.Int(name, f.Value, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f IntFlag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
// DurationFlag is a flag that takes a duration specified in Go's duration
|
||||
// format: https://golang.org/pkg/time/#ParseDuration
|
||||
type DurationFlag struct {
|
||||
Name string
|
||||
Value time.Duration
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns a readable representation of this value (for usage defaults)
|
||||
func (f DurationFlag) String() string {
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf("%s \"%v\"\t%v", prefixedNames(f.Name), f.Value, f.Usage))
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
func (f DurationFlag) Apply(set *flag.FlagSet) {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
envValDuration, err := time.ParseDuration(envVal)
|
||||
if err == nil {
|
||||
f.Value = envValDuration
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
set.Duration(name, f.Value, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f DurationFlag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
// Float64Flag is a flag that takes an float value
|
||||
// Errors if the value provided cannot be parsed
|
||||
type Float64Flag struct {
|
||||
Name string
|
||||
Value float64
|
||||
Usage string
|
||||
EnvVar string
|
||||
}
|
||||
|
||||
// String returns the usage
|
||||
func (f Float64Flag) String() string {
|
||||
return withEnvHint(f.EnvVar, fmt.Sprintf("%s \"%v\"\t%v", prefixedNames(f.Name), f.Value, f.Usage))
|
||||
}
|
||||
|
||||
// Apply populates the flag given the flag set and environment
|
||||
func (f Float64Flag) Apply(set *flag.FlagSet) {
|
||||
if f.EnvVar != "" {
|
||||
for _, envVar := range strings.Split(f.EnvVar, ",") {
|
||||
envVar = strings.TrimSpace(envVar)
|
||||
if envVal := os.Getenv(envVar); envVal != "" {
|
||||
envValFloat, err := strconv.ParseFloat(envVal, 10)
|
||||
if err == nil {
|
||||
f.Value = float64(envValFloat)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
eachName(f.Name, func(name string) {
|
||||
set.Float64(name, f.Value, f.Usage)
|
||||
})
|
||||
}
|
||||
|
||||
func (f Float64Flag) getName() string {
|
||||
return f.Name
|
||||
}
|
||||
|
||||
func prefixFor(name string) (prefix string) {
|
||||
if len(name) == 1 {
|
||||
prefix = "-"
|
||||
} else {
|
||||
prefix = "--"
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func prefixedNames(fullName string) (prefixed string) {
|
||||
parts := strings.Split(fullName, ",")
|
||||
for i, name := range parts {
|
||||
name = strings.Trim(name, " ")
|
||||
prefixed += prefixFor(name) + name
|
||||
if i < len(parts)-1 {
|
||||
prefixed += ", "
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func withEnvHint(envVar, str string) string {
|
||||
envText := ""
|
||||
if envVar != "" {
|
||||
envText = fmt.Sprintf(" [$%s]", strings.Join(strings.Split(envVar, ","), ", $"))
|
||||
}
|
||||
return str + envText
|
||||
}
|
||||
238
vendor/github.com/urfave/cli/help.go
generated
vendored
238
vendor/github.com/urfave/cli/help.go
generated
vendored
|
|
@ -1,238 +0,0 @@
|
|||
package cli
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
"strings"
|
||||
"text/tabwriter"
|
||||
"text/template"
|
||||
)
|
||||
|
||||
// The text template for the Default help topic.
|
||||
// cli.go uses text/template to render templates. You can
|
||||
// render custom help text by setting this variable.
|
||||
var AppHelpTemplate = `NAME:
|
||||
{{.Name}} - {{.Usage}}
|
||||
|
||||
USAGE:
|
||||
{{.Name}} {{if .Flags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} [arguments...]
|
||||
{{if .Version}}
|
||||
VERSION:
|
||||
{{.Version}}
|
||||
{{end}}{{if len .Authors}}
|
||||
AUTHOR(S):
|
||||
{{range .Authors}}{{ . }}{{end}}
|
||||
{{end}}{{if .Commands}}
|
||||
COMMANDS:
|
||||
{{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
|
||||
{{end}}{{end}}{{if .Flags}}
|
||||
GLOBAL OPTIONS:
|
||||
{{range .Flags}}{{.}}
|
||||
{{end}}{{end}}{{if .Copyright }}
|
||||
COPYRIGHT:
|
||||
{{.Copyright}}
|
||||
{{end}}
|
||||
`
|
||||
|
||||
// The text template for the command help topic.
|
||||
// cli.go uses text/template to render templates. You can
|
||||
// render custom help text by setting this variable.
|
||||
var CommandHelpTemplate = `NAME:
|
||||
{{.FullName}} - {{.Usage}}
|
||||
|
||||
USAGE:
|
||||
command {{.FullName}}{{if .Flags}} [command options]{{end}} [arguments...]{{if .Description}}
|
||||
|
||||
DESCRIPTION:
|
||||
{{.Description}}{{end}}{{if .Flags}}
|
||||
|
||||
OPTIONS:
|
||||
{{range .Flags}}{{.}}
|
||||
{{end}}{{ end }}
|
||||
`
|
||||
|
||||
// The text template for the subcommand help topic.
|
||||
// cli.go uses text/template to render templates. You can
|
||||
// render custom help text by setting this variable.
|
||||
var SubcommandHelpTemplate = `NAME:
|
||||
{{.Name}} - {{.Usage}}
|
||||
|
||||
USAGE:
|
||||
{{.Name}} command{{if .Flags}} [command options]{{end}} [arguments...]
|
||||
|
||||
COMMANDS:
|
||||
{{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
|
||||
{{end}}{{if .Flags}}
|
||||
OPTIONS:
|
||||
{{range .Flags}}{{.}}
|
||||
{{end}}{{end}}
|
||||
`
|
||||
|
||||
var helpCommand = Command{
|
||||
Name: "help",
|
||||
Aliases: []string{"h"},
|
||||
Usage: "Shows a list of commands or help for one command",
|
||||
Action: func(c *Context) {
|
||||
args := c.Args()
|
||||
if args.Present() {
|
||||
ShowCommandHelp(c, args.First())
|
||||
} else {
|
||||
ShowAppHelp(c)
|
||||
}
|
||||
},
|
||||
}
|
||||
|
||||
var helpSubcommand = Command{
|
||||
Name: "help",
|
||||
Aliases: []string{"h"},
|
||||
Usage: "Shows a list of commands or help for one command",
|
||||
Action: func(c *Context) {
|
||||
args := c.Args()
|
||||
if args.Present() {
|
||||
ShowCommandHelp(c, args.First())
|
||||
} else {
|
||||
ShowSubcommandHelp(c)
|
||||
}
|
||||
},
|
||||
}
|
||||
|
||||
// Prints help for the App or Command
|
||||
type helpPrinter func(w io.Writer, templ string, data interface{})
|
||||
|
||||
var HelpPrinter helpPrinter = printHelp
|
||||
|
||||
// Prints version for the App
|
||||
var VersionPrinter = printVersion
|
||||
|
||||
func ShowAppHelp(c *Context) {
|
||||
HelpPrinter(c.App.Writer, AppHelpTemplate, c.App)
|
||||
}
|
||||
|
||||
// Prints the list of subcommands as the default app completion method
|
||||
func DefaultAppComplete(c *Context) {
|
||||
for _, command := range c.App.Commands {
|
||||
for _, name := range command.Names() {
|
||||
fmt.Fprintln(c.App.Writer, name)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Prints help for the given command
|
||||
func ShowCommandHelp(ctx *Context, command string) {
|
||||
// show the subcommand help for a command with subcommands
|
||||
if command == "" {
|
||||
HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App)
|
||||
return
|
||||
}
|
||||
|
||||
for _, c := range ctx.App.Commands {
|
||||
if c.HasName(command) {
|
||||
HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
if ctx.App.CommandNotFound != nil {
|
||||
ctx.App.CommandNotFound(ctx, command)
|
||||
} else {
|
||||
fmt.Fprintf(ctx.App.Writer, "No help topic for '%v'\n", command)
|
||||
}
|
||||
}
|
||||
|
||||
// Prints help for the given subcommand
|
||||
func ShowSubcommandHelp(c *Context) {
|
||||
ShowCommandHelp(c, c.Command.Name)
|
||||
}
|
||||
|
||||
// Prints the version number of the App
|
||||
func ShowVersion(c *Context) {
|
||||
VersionPrinter(c)
|
||||
}
|
||||
|
||||
func printVersion(c *Context) {
|
||||
fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version)
|
||||
}
|
||||
|
||||
// Prints the lists of commands within a given context
|
||||
func ShowCompletions(c *Context) {
|
||||
a := c.App
|
||||
if a != nil && a.BashComplete != nil {
|
||||
a.BashComplete(c)
|
||||
}
|
||||
}
|
||||
|
||||
// Prints the custom completions for a given command
|
||||
func ShowCommandCompletions(ctx *Context, command string) {
|
||||
c := ctx.App.Command(command)
|
||||
if c != nil && c.BashComplete != nil {
|
||||
c.BashComplete(ctx)
|
||||
}
|
||||
}
|
||||
|
||||
func printHelp(out io.Writer, templ string, data interface{}) {
|
||||
funcMap := template.FuncMap{
|
||||
"join": strings.Join,
|
||||
}
|
||||
|
||||
w := tabwriter.NewWriter(out, 0, 8, 1, '\t', 0)
|
||||
t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
|
||||
err := t.Execute(w, data)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
w.Flush()
|
||||
}
|
||||
|
||||
func checkVersion(c *Context) bool {
|
||||
if c.GlobalBool("version") || c.GlobalBool("v") || c.Bool("version") || c.Bool("v") {
|
||||
ShowVersion(c)
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func checkHelp(c *Context) bool {
|
||||
if c.GlobalBool("h") || c.GlobalBool("help") || c.Bool("h") || c.Bool("help") {
|
||||
ShowAppHelp(c)
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func checkCommandHelp(c *Context, name string) bool {
|
||||
if c.Bool("h") || c.Bool("help") {
|
||||
ShowCommandHelp(c, name)
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func checkSubcommandHelp(c *Context) bool {
|
||||
if c.GlobalBool("h") || c.GlobalBool("help") {
|
||||
ShowSubcommandHelp(c)
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func checkCompletions(c *Context) bool {
|
||||
if (c.GlobalBool(BashCompletionFlag.Name) || c.Bool(BashCompletionFlag.Name)) && c.App.EnableBashCompletion {
|
||||
ShowCompletions(c)
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func checkCommandCompletions(c *Context, name string) bool {
|
||||
if c.Bool(BashCompletionFlag.Name) && c.App.EnableBashCompletion {
|
||||
ShowCommandCompletions(c, name)
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
Loading…
Reference in a new issue