sample commit-msg hook: no silent exit on duplicate Signed-off-by lines

[git.git] / lockfile.c

diff --git a/lockfile.c b/lockfile.c
index 2346e0e9ef0dbd247daf9d77c373029b491068c4..2a2fea3cb6bd1de059e7c0f8c2008c5fe8376b93 100644 (file)
--- a/lockfile.c
+++ b/lockfile.c
@@ -22,7 +22,7 @@ static void remove_lock_file_on_signal(int signo)
        raise(signo);
 }
 
-int hold_lock_file_for_update(struct lock_file *lk, const char *path)
+static int lock_file(struct lock_file *lk, const char *path)
 {
        int fd;
        sprintf(lk->filename, "%s.lock", path);
@@ -41,6 +41,14 @@ int hold_lock_file_for_update(struct lock_file *lk, const char *path)
        return fd;
 }
 
+int hold_lock_file_for_update(struct lock_file *lk, const char *path, int die_on_error)
+{
+       int fd = lock_file(lk, path);
+       if (fd < 0 && die_on_error)
+               die("unable to create '%s': %s", path, strerror(errno));
+       return fd;
+}
+
 int commit_lock_file(struct lock_file *lk)
 {
        char result_file[PATH_MAX];