forked from containers/buildah
/
umount.go
99 lines (88 loc) · 2.42 KB
/
umount.go
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package main
import (
"fmt"
"os"
buildahcli "github.com/containers/buildah/pkg/cli"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
func init() {
umountCommand := &cobra.Command{
Use: "umount",
Aliases: []string{"unmount"},
Short: "Unmount the root file system of the specified working containers",
Long: "Unmounts the root file system of the specified working containers.",
RunE: umountCmd,
Example: `buildah umount containerID
buildah umount containerID1 containerID2 containerID3
buildah umount --all`,
}
umountCommand.SetUsageTemplate(UsageTemplate())
flags := umountCommand.Flags()
flags.SetInterspersed(false)
flags.BoolP("all", "a", false, "umount all of the currently mounted containers")
rootCmd.AddCommand(umountCommand)
}
func umountCmd(c *cobra.Command, args []string) error {
umountAll := false
if c.Flag("all").Changed {
umountAll = true
}
umountContainerErrStr := "error unmounting container"
if len(args) == 0 && !umountAll {
return errors.Errorf("at least one container ID must be specified")
}
if len(args) > 0 && umountAll {
return errors.Errorf("when using the --all switch, you may not pass any container IDs")
}
if err := buildahcli.VerifyFlagsArgsOrder(args); err != nil {
return err
}
store, err := getStore(c)
if err != nil {
return err
}
var lastError error
if len(args) > 0 {
for _, name := range args {
builder, err := openBuilder(getContext(), store, name)
if err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "%s %s", umountContainerErrStr, name)
continue
}
if builder.MountPoint == "" {
continue
}
if err = builder.Unmount(); err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "%s %q", umountContainerErrStr, builder.Container)
continue
}
fmt.Printf("%s\n", builder.ContainerID)
}
} else {
builders, err := openBuilders(store)
if err != nil {
return errors.Wrapf(err, "error reading build Containers")
}
for _, builder := range builders {
if builder.MountPoint == "" {
continue
}
if err = builder.Unmount(); err != nil {
if lastError != nil {
fmt.Fprintln(os.Stderr, lastError)
}
lastError = errors.Wrapf(err, "%s %q", umountContainerErrStr, builder.Container)
continue
}
fmt.Printf("%s\n", builder.ContainerID)
}
}
return lastError
}