diff options
| -rw-r--r-- | builtin/commit.c | 2 | ||||
| -rw-r--r-- | git-compat-util.h | 1 | ||||
| -rw-r--r-- | wrapper.c | 13 |
3 files changed, 15 insertions, 1 deletions
diff --git a/builtin/commit.c b/builtin/commit.c index f2a8b78c7a..ce11a17f8a 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -761,7 +761,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix, hook_arg2 = ""; } - s->fp = fopen(git_path(commit_editmsg), "w"); + s->fp = fopen_for_writing(git_path(commit_editmsg)); if (s->fp == NULL) die_errno(_("could not open '%s'"), git_path(commit_editmsg)); diff --git a/git-compat-util.h b/git-compat-util.h index 0feeae2983..d98f3af5e7 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -733,6 +733,7 @@ extern int xmkstemp_mode(char *template, int mode); extern int odb_mkstemp(char *template, size_t limit, const char *pattern); extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1); extern char *xgetcwd(void); +extern FILE *fopen_for_writing(const char *path); #define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), (alloc) * sizeof(*(x))) @@ -375,6 +375,19 @@ FILE *xfdopen(int fd, const char *mode) return stream; } +FILE *fopen_for_writing(const char *path) +{ + FILE *ret = fopen(path, "w"); + + if (!ret && errno == EPERM) { + if (!unlink(path)) + ret = fopen(path, "w"); + else + errno = EPERM; + } + return ret; +} + int xmkstemp(char *template) { int fd; |