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Merge pull request #1993 from rfjakob/lchown 

restore: suppress lchown errors when not running as root
This commit is contained in:
Alexander Neumann 2018-09-09 20:10:50 +02:00
parent bd9022962e e42d2d1da8
commit 6bc99ce451
2 changed files with 17 additions and 1 deletions
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7
changelog/unreleased/issue-1766 Normal file
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@ -0,0 +1,7 @@
Enhancement: restore: suppress lchown errors when not running as root
Like "cp" and "rsync" do, restic now only reports errors for changing
the ownership of files during restore if it is run as root, on non-Windows
operating systems. On Windows, the error is reported as usual.
https://github.com/restic/restic/issues/1766

11
internal/restic/node.go
View File

@ -186,7 +186,16 @@ func (node Node) restoreMetadata(path string) error {
var firsterr error
if err := lchown(path, int(node.UID), int(node.GID)); err != nil {
firsterr = errors.Wrap(err, "Lchown")
// Like "cp -a" and "rsync -a" do, we only report lchown permission errors
// if we run as root.
// On Windows, Geteuid always returns -1, and we always report lchown
// permission errors.
if os.Geteuid() > 0 && os.IsPermission(err) {
debug.Log("not running as root, ignoring lchown permission error for %v: %v",
path, err)
} else {
firsterr = errors.Wrap(err, "Lchown")
}
}
if node.Type != "symlink" {