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| author | Ludovic Courtès <ludo@gnu.org> | 2016-02-03 22:26:33 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2016-02-03 22:28:28 +0100 |
| commit | 37dd1e6a34698e5bccaf99b6681c503b1a4e5efc (patch) | |
| tree | b326e9fae56e1476b9e884f4de67992de61b2467 | |
| parent | 240b57f0ca576708ebf6cfa0dfe2803fa9ff2323 (diff) | |
| download | patches-37dd1e6a34698e5bccaf99b6681c503b1a4e5efc.tar patches-37dd1e6a34698e5bccaf99b6681c503b1a4e5efc.tar.gz | |
services: 'file-union' makes sure each source file exists.
Before that, specifying an invalid timezone in 'operating-system' would
lead to a dangling symlink in the 'etc' directory, which in turn would
lead to a kernel panic at boot time.
Reported by pizzaiolo on #guix.
* gnu/services.scm (file-union): Add 'stat' call for SOURCE.
| -rw-r--r-- | gnu/services.scm | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gnu/services.scm b/gnu/services.scm index 056bb2a1c9..1ad573787f 100644 --- a/gnu/services.scm +++ b/gnu/services.scm @@ -291,7 +291,12 @@ file." (chdir #$output) #$@(map (match-lambda ((target source) - #~(symlink #$source #$target))) + #~(begin + ;; Stat the source to abort early if it + ;; does not exist. + (stat #$source) + + (symlink #$source #$target)))) files)))) (define (directory-union name things) |