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engine: resources: Allow symbolic modes for missing files

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In 83a747794e a bug was introduced with
the implementation of symbolic modes, that would prevent a file resource
from passing the Validate step if you were using a symbolic mode, and
the file didn't already exist. If you didn't use symbolic modes and
those files weren't absent, then you wouldn't have noticed.

It might be worth looking into the API for symbolic parsing as well.
This commit is contained in:
James Shubin
2024-08-06 13:24:25 -04:00
parent 4abcd9cf01
commit 0354082f89
1 changed files with 5 additions and 4 deletions
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9
engine/resources/file.go
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@@ -239,18 +239,19 @@ func (obj *FileRes) isDir() bool {
// the case where the mode is not specified. The caller should check obj.Mode is
// not empty.
func (obj *FileRes) mode() (os.FileMode, error) {
// First check if this is an octal number.
if n, err := strconv.ParseInt(obj.Mode, 8, 32); err == nil {
return os.FileMode(n), nil
}
// Try parsing symbolically by first getting the files current mode.
stat, err := os.Stat(obj.getPath())
if err != nil {
return os.FileMode(0), errwrap.Wrapf(err, "failed to get the current file mode")
from := os.FileMode(0) // default
if stat, err := os.Stat(obj.getPath()); err == nil {
from = stat.Mode()
}
modes := strings.Split(obj.Mode, ",")
m, err := engineUtil.ParseSymbolicModes(modes, stat.Mode(), FileModeAllowAssign)
m, err := engineUtil.ParseSymbolicModes(modes, from, FileModeAllowAssign)
if err != nil {
return os.FileMode(0), errwrap.Wrapf(err, "mode should be an octal number or symbolic mode (%s)", obj.Mode)
}