diff options
| -rw-r--r-- | fast-import.c | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/fast-import.c b/fast-import.c index 28f5e7c3b1..a09221242e 100644 --- a/fast-import.c +++ b/fast-import.c @@ -1375,16 +1375,33 @@ static void dump_marks_helper(FILE *f, static void dump_marks(void) { - if (mark_file) - { - FILE *f = fopen(mark_file, "w"); - if (f) { - dump_marks_helper(f, 0, marks); - fclose(f); - } else - failure |= error("Unable to write marks file %s: %s", - mark_file, strerror(errno)); + static struct lock_file mark_lock; + int mark_fd; + FILE *f; + + if (!mark_file) + return; + + mark_fd = hold_lock_file_for_update(&mark_lock, mark_file, 0); + if (mark_fd < 0) { + failure |= error("Unable to write marks file %s: %s", + mark_file, strerror(errno)); + return; } + + f = fdopen(mark_fd, "w"); + if (!f) { + rollback_lock_file(&mark_lock); + failure |= error("Unable to write marks file %s: %s", + mark_file, strerror(errno)); + return; + } + + dump_marks_helper(f, 0, marks); + fclose(f); + if (commit_lock_file(&mark_lock)) + failure |= error("Unable to write marks file %s: %s", + mark_file, strerror(errno)); } static void read_next_command(void) |