sequencer: factor out rewrite_file()

Reduce code duplication by extracting a function for rewriting an existing file. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

René Scharfe committed Oct 31, 2017 at 10:54 UTC 73646bfdcb38114a4d9242a02fc180a9877e01bf
1 file changed +17 -29
sequencer.c
+17 -29
@@ -2665,6 +2665,20 @@ leave_check:
2665 return res;
2666 }
2667
2668 +static int rewrite_file(const char *path, const char *buf, size_t len)
2669 +{
2670 + int rc = 0;
2671 + int fd = open(path, O_WRONLY);
2672 + if (fd < 0)
2673 + return error_errno(_("could not open '%s' for writing"), path);
2674 + if (write_in_full(fd, buf, len) < 0)
2675 + rc = error_errno(_("could not write to '%s'"), path);
2676 + if (!rc && ftruncate(fd, len) < 0)
2677 + rc = error_errno(_("could not truncate '%s'"), path);
2678 + close(fd);
2679 + return rc;
2680 +}
2681 +
2682 /* skip picking commits whose parents are unchanged */
2683 int skip_unnecessary_picks(void)
2684 {
@@ -2737,29 +2751,11 @@ int skip_unnecessary_picks(void)
2751 }
2752 close(fd);
2753
2740 - fd = open(rebase_path_todo(), O_WRONLY, 0666);
2741 - if (fd < 0) {
2742 - error_errno(_("could not open '%s' for writing"),
2743 - rebase_path_todo());
2754 + if (rewrite_file(rebase_path_todo(), todo_list.buf.buf + offset,
2755 + todo_list.buf.len - offset) < 0) {
2756 todo_list_release(&todo_list);
2757 return -1;
2758 }
2747 - if (write_in_full(fd, todo_list.buf.buf + offset,
2748 - todo_list.buf.len - offset) < 0) {
2749 - error_errno(_("could not write to '%s'"),
2750 - rebase_path_todo());
2751 - close(fd);
2752 - todo_list_release(&todo_list);
2753 - return -1;
2754 - }
2755 - if (ftruncate(fd, todo_list.buf.len - offset) < 0) {
2756 - error_errno(_("could not truncate '%s'"),
2757 - rebase_path_todo());
2758 - todo_list_release(&todo_list);
2759 - close(fd);
2760 - return -1;
2761 - }
2762 - close(fd);
2759
2760 todo_list.current = i;
2761 if (is_fixup(peek_command(&todo_list, 0)))
@@ -2944,15 +2940,7 @@ int rearrange_squash(void)
2940 }
2941 }
2942
2947 - fd = open(todo_file, O_WRONLY);
2948 - if (fd < 0)
2949 - res = error_errno(_("could not open '%s'"), todo_file);
2950 - else if (write(fd, buf.buf, buf.len) < 0)
2951 - res = error_errno(_("could not write to '%s'"), todo_file);
2952 - else if (ftruncate(fd, buf.len) < 0)
2953 - res = error_errno(_("could not truncate '%s'"),
2954 - todo_file);
2955 - close(fd);
2943 + res = rewrite_file(todo_file, buf.buf, buf.len);
2944 strbuf_release(&buf);
2945 }
2946