cscli config show: avoid globals, use yaml v3 (#2863)

* cscli config show: avoid globals, use yaml v3

* lint (whitespace/errors)

cmd/crowdsec-cli/alerts.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/csv"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/url"
 	"os"
@@ -204,6 +205,7 @@ func (cli *cliAlerts) NewCommand() *cobra.Command {
 			if err != nil {
 				return fmt.Errorf("parsing api url %s: %w", apiURL, err)
 			}
+
 			cli.client, err = apiclient.NewClient(&apiclient.Config{
 				MachineID:     cfg.API.Client.Credentials.Login,
 				Password:      strfmt.Password(cfg.API.Client.Credentials.Password),
@@ -211,7 +213,6 @@ func (cli *cliAlerts) NewCommand() *cobra.Command {
 				URL:           apiURL,
 				VersionPrefix: "v1",
 			})
-
 			if err != nil {
 				return fmt.Errorf("new api client: %w", err)
 			}
@@ -229,7 +230,7 @@ func (cli *cliAlerts) NewCommand() *cobra.Command {
 }
 
 func (cli *cliAlerts) NewListCmd() *cobra.Command {
-	var alertListFilter = apiclient.AlertsListOpts{
+	alertListFilter := apiclient.AlertsListOpts{
 		ScopeEquals:    new(string),
 		ValueEquals:    new(string),
 		ScenarioEquals: new(string),
@@ -363,7 +364,7 @@ func (cli *cliAlerts) NewDeleteCmd() *cobra.Command {
 		delAlertByID   string
 	)
 
-	var alertDeleteFilter = apiclient.AlertsDeleteOpts{
+	alertDeleteFilter := apiclient.AlertsDeleteOpts{
 		ScopeEquals:    new(string),
 		ValueEquals:    new(string),
 		ScenarioEquals: new(string),
@@ -391,7 +392,7 @@ cscli alerts delete -s crowdsecurity/ssh-bf"`,
 				*alertDeleteFilter.ScenarioEquals == "" && *alertDeleteFilter.IPEquals == "" &&
 				*alertDeleteFilter.RangeEquals == "" && delAlertByID == "" {
 				_ = cmd.Usage()
-				return fmt.Errorf("at least one filter or --all must be specified")
+				return errors.New("at least one filter or --all must be specified")
 			}
 
 			return nil
@@ -478,7 +479,7 @@ func (cli *cliAlerts) NewInspectCmd() *cobra.Command {
 			cfg := cli.cfg()
 			if len(args) == 0 {
 				printHelp(cmd)
-				return fmt.Errorf("missing alert_id")
+				return errors.New("missing alert_id")
 			}
 			for _, alertID := range args {
 				id, err := strconv.Atoi(alertID)

cmd/crowdsec-cli/config_show.go

@@ -10,13 +10,15 @@ import (
 	"github.com/sanity-io/litter"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
-	"gopkg.in/yaml.v2"
+	"gopkg.in/yaml.v3"
 
 	"github.com/crowdsecurity/crowdsec/pkg/csconfig"
 	"github.com/crowdsecurity/crowdsec/pkg/exprhelpers"
 )
 
-func showConfigKey(key string) error {
+func (cli *cliConfig) showKey(key string) error {
+	cfg := cli.cfg()
+
 	type Env struct {
 		Config *csconfig.Config
 	}
@@ -30,15 +32,15 @@ func showConfigKey(key string) error {
 		return err
 	}
 
-	output, err := expr.Run(program, Env{Config: csConfig})
+	output, err := expr.Run(program, Env{Config: cfg})
 	if err != nil {
 		return err
 	}
 
-	switch csConfig.Cscli.Output {
+	switch cfg.Cscli.Output {
 	case "human", "raw":
 		// Don't use litter for strings, it adds quotes
-		// that we didn't have before
+		// that would break compatibility with previous versions
 		switch output.(type) {
 		case string:
 			fmt.Println(output)
@@ -51,13 +53,14 @@ func showConfigKey(key string) error {
 			return fmt.Errorf("failed to marshal configuration: %w", err)
 		}
 
-		fmt.Printf("%s\n", string(data))
+		fmt.Println(string(data))
 	}
 
 	return nil
 }
 
-var configShowTemplate = `Global:
+func (cli *cliConfig) template() string {
+	return `Global:
 
 {{- if .ConfigPaths }}
    - Configuration Folder   : {{.ConfigPaths.ConfigDir}}
@@ -182,19 +185,11 @@ Central API:
 {{- end }}
 {{- end }}
 `
+}
 
-func (cli *cliConfig) show(key string) error {
+func (cli *cliConfig) show() error {
 	cfg := cli.cfg()
 
-	if err := cfg.LoadAPIClient(); err != nil {
-		log.Errorf("failed to load API client configuration: %s", err)
-		// don't return, we can still show the configuration
-	}
-
-	if key != "" {
-		return showConfigKey(key)
-	}
-
 	switch cfg.Cscli.Output {
 	case "human":
 		// The tests on .Enable look funny because the option has a true default which has
@@ -205,7 +200,7 @@ func (cli *cliConfig) show(key string) error {
 			"ValueBool": func(b *bool) bool { return b != nil && *b },
 		}
 
-		tmp, err := template.New("config").Funcs(funcs).Parse(configShowTemplate)
+		tmp, err := template.New("config").Funcs(funcs).Parse(cli.template())
 		if err != nil {
 			return err
 		}
@@ -220,14 +215,14 @@ func (cli *cliConfig) show(key string) error {
 			return fmt.Errorf("failed to marshal configuration: %w", err)
 		}
 
-		fmt.Printf("%s\n", string(data))
+		fmt.Println(string(data))
 	case "raw":
 		data, err := yaml.Marshal(cfg)
 		if err != nil {
 			return fmt.Errorf("failed to marshal configuration: %w", err)
 		}
 
-		fmt.Printf("%s\n", string(data))
+		fmt.Println(string(data))
 	}
 
 	return nil
@@ -243,7 +238,16 @@ func (cli *cliConfig) newShowCmd() *cobra.Command {
 		Args:              cobra.ExactArgs(0),
 		DisableAutoGenTag: true,
 		RunE: func(_ *cobra.Command, _ []string) error {
-			return cli.show(key)
+			if err := cli.cfg().LoadAPIClient(); err != nil {
+				log.Errorf("failed to load API client configuration: %s", err)
+				// don't return, we can still show the configuration
+			}
+
+			if key != "" {
+				return cli.showKey(key)
+			}
+
+			return cli.show()
 		},
 	}
 

cmd/crowdsec-cli/console.go

@@ -4,9 +4,11 @@ import (
 	"context"
 	"encoding/csv"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/url"
 	"os"
+	"strconv"
 	"strings"
 
 	"github.com/fatih/color"
@@ -36,7 +38,7 @@ func NewCLIConsole(cfg configGetter) *cliConsole {
 }
 
 func (cli *cliConsole) NewCommand() *cobra.Command {
-	var cmd = &cobra.Command{
+	cmd := &cobra.Command{
 		Use:               "console [action]",
 		Short:             "Manage interaction with Crowdsec console (https://app.crowdsec.net)",
 		Args:              cobra.MinimumNArgs(1),
@@ -203,7 +205,7 @@ Enable given information push to the central API. Allows to empower the console`
 				log.Infof("All features have been enabled successfully")
 			} else {
 				if len(args) == 0 {
-					return fmt.Errorf("you must specify at least one feature to enable")
+					return errors.New("you must specify at least one feature to enable")
 				}
 				if err := cli.setConsoleOpts(args, true); err != nil {
 					return err
@@ -288,11 +290,11 @@ func (cli *cliConsole) newStatusCmd() *cobra.Command {
 				}
 
 				rows := [][]string{
-					{csconfig.SEND_MANUAL_SCENARIOS, fmt.Sprintf("%t", *consoleCfg.ShareManualDecisions)},
+					{csconfig.SEND_MANUAL_SCENARIOS, strconv.FormatBool(*consoleCfg.ShareManualDecisions)},
-					{csconfig.SEND_CUSTOM_SCENARIOS, fmt.Sprintf("%t", *consoleCfg.ShareCustomScenarios)},
+					{csconfig.SEND_CUSTOM_SCENARIOS, strconv.FormatBool(*consoleCfg.ShareCustomScenarios)},
-					{csconfig.SEND_TAINTED_SCENARIOS, fmt.Sprintf("%t", *consoleCfg.ShareTaintedScenarios)},
+					{csconfig.SEND_TAINTED_SCENARIOS, strconv.FormatBool(*consoleCfg.ShareTaintedScenarios)},
-					{csconfig.SEND_CONTEXT, fmt.Sprintf("%t", *consoleCfg.ShareContext)},
+					{csconfig.SEND_CONTEXT, strconv.FormatBool(*consoleCfg.ShareContext)},
-					{csconfig.CONSOLE_MANAGEMENT, fmt.Sprintf("%t", *consoleCfg.ConsoleManagement)},
+					{csconfig.CONSOLE_MANAGEMENT, strconv.FormatBool(*consoleCfg.ConsoleManagement)},
 				}
 				for _, row := range rows {
 					err = csvwriter.Write(row)

cmd/crowdsec-cli/copyfile.go

@@ -9,7 +9,6 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-
 /*help to copy the file, ioutil doesn't offer the feature*/
 
 func copyFileContents(src, dst string) (err error) {
@@ -69,6 +68,7 @@ func CopyFile(sourceSymLink, destinationFile string) error {
 		if !(destinationFileStat.Mode().IsRegular()) {
 			return fmt.Errorf("copyFile: non-regular destination file %s (%q)", destinationFileStat.Name(), destinationFileStat.Mode().String())
 		}
+
 		if os.SameFile(sourceFileStat, destinationFileStat) {
 			return err
 		}
@@ -80,4 +80,3 @@ func CopyFile(sourceSymLink, destinationFile string) error {
 
 	return err
 }
-

cmd/crowdsec-cli/decisions.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/csv"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"net/url"
 	"os"
@@ -346,7 +347,7 @@ cscli decisions add --scope username --value foobar
 				addScope = types.Range
 			} else if addValue == "" {
 				printHelp(cmd)
-				return fmt.Errorf("missing arguments, a value is required (--ip, --range or --scope and --value)")
+				return errors.New("missing arguments, a value is required (--ip, --range or --scope and --value)")
 			}
 
 			if addReason == "" {
@@ -411,7 +412,7 @@ cscli decisions add --scope username --value foobar
 }
 
 func (cli *cliDecisions) newDeleteCmd() *cobra.Command {
-	var delFilter = apiclient.DecisionsDeleteOpts{
+	delFilter := apiclient.DecisionsDeleteOpts{
 		ScopeEquals:    new(string),
 		ValueEquals:    new(string),
 		TypeEquals:     new(string),
@@ -448,7 +449,7 @@ cscli decisions delete --origin lists  --scenario list_name
 				*delFilter.RangeEquals == "" && *delFilter.ScenarioEquals == "" &&
 				*delFilter.OriginEquals == "" && delDecisionID == "" {
 				cmd.Usage()
-				return fmt.Errorf("at least one filter or --all must be specified")
+				return errors.New("at least one filter or --all must be specified")
 			}
 
 			return nil

cmd/crowdsec-cli/decisions_import.go

@@ -5,6 +5,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -81,7 +82,7 @@ func (cli *cliDecisions) runImport(cmd *cobra.Command, args []string) error  {
 	}
 
 	if defaultDuration == "" {
-		return fmt.Errorf("--duration cannot be empty")
+		return errors.New("--duration cannot be empty")
 	}
 
 	defaultScope, err := flags.GetString("scope")
@@ -90,7 +91,7 @@ func (cli *cliDecisions) runImport(cmd *cobra.Command, args []string) error  {
 	}
 
 	if defaultScope == "" {
-		return fmt.Errorf("--scope cannot be empty")
+		return errors.New("--scope cannot be empty")
 	}
 
 	defaultReason, err := flags.GetString("reason")
@@ -99,7 +100,7 @@ func (cli *cliDecisions) runImport(cmd *cobra.Command, args []string) error  {
 	}
 
 	if defaultReason == "" {
-		return fmt.Errorf("--reason cannot be empty")
+		return errors.New("--reason cannot be empty")
 	}
 
 	defaultType, err := flags.GetString("type")
@@ -108,7 +109,7 @@ func (cli *cliDecisions) runImport(cmd *cobra.Command, args []string) error  {
 	}
 
 	if defaultType == "" {
-		return fmt.Errorf("--type cannot be empty")
+		return errors.New("--type cannot be empty")
 	}
 
 	batchSize, err := flags.GetInt("batch")
@@ -136,7 +137,7 @@ func (cli *cliDecisions) runImport(cmd *cobra.Command, args []string) error  {
 	}
 
 	if format == "" {
-		return fmt.Errorf("unable to guess format from file extension, please provide a format with --format flag")
+		return errors.New("unable to guess format from file extension, please provide a format with --format flag")
 	}
 
 	if input == "-" {
@@ -235,7 +236,6 @@ func (cli *cliDecisions) runImport(cmd *cobra.Command, args []string) error  {
 	return nil
 }
 
-
 func (cli *cliDecisions) newImportCmd() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "import [options]",

cmd/crowdsec-cli/doc.go

@@ -39,8 +39,10 @@ id: %s
 title: %s
 ---
 `
+
 	name := filepath.Base(filename)
 	base := strings.TrimSuffix(name, filepath.Ext(name))
+
 	return fmt.Sprintf(header, base, strings.ReplaceAll(base, "_", " "))
 }
 

cmd/crowdsec-cli/explain.go

@@ -83,7 +83,7 @@ tail -n 5 myfile.log | cscli explain --type nginx -f -
 		PersistentPreRunE: func(_ *cobra.Command, _ []string) error {
 			fileInfo, _ := os.Stdin.Stat()
 			if cli.flags.logFile == "-" && ((fileInfo.Mode() & os.ModeCharDevice) == os.ModeCharDevice) {
-				return fmt.Errorf("the option -f - is intended to work with pipes")
+				return errors.New("the option -f - is intended to work with pipes")
 			}
 
 			return nil
@@ -160,18 +160,22 @@ func (cli *cliExplain) run() error {
 		} else if logFile == "-" {
 			reader := bufio.NewReader(os.Stdin)
 			errCount := 0
+
 			for {
 				input, err := reader.ReadBytes('\n')
 				if err != nil && errors.Is(err, io.EOF) {
 					break
 				}
+
 				if len(input) > 1 {
 					_, err = f.Write(input)
 				}
+
 				if err != nil || len(input) <= 1 {
 					errCount++
 				}
 			}
+
 			if errCount > 0 {
 				log.Warnf("Failed to write %d lines to %s", errCount, tmpFile)
 			}
@@ -207,7 +211,7 @@ func (cli *cliExplain) run() error {
 	}
 
 	if dsn == "" {
-		return fmt.Errorf("no acquisition (--file or --dsn) provided, can't run cscli test")
+		return errors.New("no acquisition (--file or --dsn) provided, can't run cscli test")
 	}
 
 	cmdArgs := []string{"-c", ConfigFilePath, "-type", logType, "-dsn", dsn, "-dump-data", dir, "-no-api"}