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nvidia-ctk hook chmod: Move file mode parsing into flag validation function

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Signed-off-by: Ievgen Popovych <jmennius@gmail.com>
This commit is contained in:
Ievgen Popovych 2023-11-20 14:49:29 +02:00
parent eb35d9b30a
commit 9085cb7dd5
1 changed files with 12 additions and 11 deletions
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23
cmd/nvidia-ctk/hook/chmod/chmod.go
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@ -36,7 +36,8 @@ type command struct {
type config struct {
paths cli.StringSlice
mode string
modeStr string
mode fs.FileMode
containerSpec string
}
@ -73,7 +74,7 @@ func (m command) build() *cli.Command {
&cli.StringFlag{
Name: "mode",
Usage: "Specify the file mode",
Destination: &cfg.mode,
Destination: &cfg.modeStr,
},
&cli.StringFlag{
Name: "container-spec",
@ -86,10 +87,16 @@ func (m command) build() *cli.Command {
}
func validateFlags(c *cli.Context, cfg *config) error {
if strings.TrimSpace(cfg.mode) == "" {
if strings.TrimSpace(cfg.modeStr) == "" {
return fmt.Errorf("a non-empty mode must be specified")
}
modeInt, err := strconv.ParseUint(cfg.modeStr, 8, 32)
if err != nil {
return fmt.Errorf("failed to parse mode as octal: %v", err)
}
cfg.mode = fs.FileMode(modeInt)
for _, p := range cfg.paths.Value() {
if strings.TrimSpace(p) == "" {
return fmt.Errorf("paths must not be empty")
@ -113,20 +120,14 @@ func (m command) run(c *cli.Context, cfg *config) error {
return fmt.Errorf("empty container root detected")
}
desiredModeInt, err := strconv.ParseUint(cfg.mode, 8, 32)
if err != nil {
return fmt.Errorf("failed to parse mode as octal: %v", err)
}
desiredMode := fs.FileMode(desiredModeInt)
paths := m.getPaths(containerRoot, cfg.paths.Value(), desiredMode)
paths := m.getPaths(containerRoot, cfg.paths.Value(), cfg.mode)
if len(paths) == 0 {
m.logger.Debugf("No paths specified; exiting")
return nil
}
for _, path := range paths {
err = os.Chmod(path, desiredMode)
err = os.Chmod(path, cfg.mode)
// in some cases this is not an issue (e.g. whole /dev mounted), see #143
if errors.Is(err, fs.ErrPermission) {
m.logger.Debugf("Ignoring permission error with chmod: %v", err)