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Add warnning log when other graphdrvier(storage driver) used before

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added warnning log when other graphdrvier(storage driver) used before for feature request #8270

Signed-off-by: Daehyeok Mun <daehyeok@gmail.com>
This commit is contained in:
daehyeok mun 2014-11-16 02:54:21 +09:00 committed by Daehyeok Mun
parent d7f72188ff
commit 3c03827e73
1 changed files with 22 additions and 1 deletions
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23
daemon/graphdriver/driver.go
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@ -5,7 +5,9 @@ import (
"fmt"
"os"
"path"
"strings"
log "github.com/Sirupsen/logrus"
"github.com/docker/docker/pkg/archive"
)
@ -125,18 +127,37 @@ func New(root string, options []string) (driver Driver, err error) {
}
return nil, err
}
checkPriorDriver(name, root)
return driver, nil
}
// Check all registered drivers if no priority driver is found
for _, initFunc := range drivers {
for name, initFunc := range drivers {
if driver, err = initFunc(root, options); err != nil {
if err == ErrNotSupported || err == ErrPrerequisites || err == ErrIncompatibleFS {
continue
}
return nil, err
}
checkPriorDriver(name, root)
return driver, nil
}
return nil, fmt.Errorf("No supported storage backend found")
}
func checkPriorDriver(name string, root string) error {
var priorDrivers []string
for prior := range drivers {
if _, err := os.Stat(path.Join(root, prior)); err == nil && prior != name {
priorDrivers = append(priorDrivers, prior)
}
}
if len(priorDrivers) > 0 {
log.Warnf("graphdriver %s selected. Warning: your graphdriver directory %s already contains data managed by other graphdrivers: %s", name, root, strings.Join(priorDrivers, ","))
}
return nil
}