From 1a72cfd7fa88e5a6c2b94568ac2fe69dfbd87f87 Mon Sep 17 00:00:00 2001 From: Jens Lehmann Date: Thu, 5 Dec 2013 20:44:14 +0100 Subject: commit -v: strip diffs and submodule shortlogs from the commit message When using the '-v' option of "git commit" the diff added to the commit message temporarily for editing is stripped off after the user exited the editor by searching for "\ndiff --git " and truncating the commmit message there if it is found. But this approach has two problems: - when the commit message itself contains a line starting with "diff --git" it will be truncated there prematurely; and - when the "diff.submodule" setting is set to "log", the diff may start with "Submodule ..", which will be left in the commit message while it shouldn't. Fix that by introducing a special scissor separator line starting with the comment character ('#' or the core.commentChar config if set) followed by two lines describing what it is for. The scissor line - which will not be translated - is used to reliably detect the start of the diff so it can be chopped off from the commit message, no matter what the user enters there. Turn a known test failure fixed by this change into a successful test; also add one for a diff starting with a submodule log and another one for proper handling of the comment char. Reported-by: Ari Pollak Signed-off-by: Jens Lehmann Signed-off-by: Junio C Hamano --- wt-status.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) (limited to 'wt-status.c') diff --git a/wt-status.c b/wt-status.c index b4e44baa29..85390b813f 100644 --- a/wt-status.c +++ b/wt-status.c @@ -16,6 +16,9 @@ #include "column.h" #include "strbuf.h" +static char cut_line[] = +"------------------------ >8 ------------------------\n"; + static char default_wt_status_colors[][COLOR_MAXLEN] = { GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */ GIT_COLOR_GREEN, /* WT_STATUS_UPDATED */ @@ -767,6 +770,18 @@ conclude: status_printf_ln(s, GIT_COLOR_NORMAL, ""); } +void wt_status_truncate_message_at_cut_line(struct strbuf *buf) +{ + const char *p; + struct strbuf pattern = STRBUF_INIT; + + strbuf_addf(&pattern, "%c %s", comment_line_char, cut_line); + p = strstr(buf->buf, pattern.buf); + if (p && (p == buf->buf || p[-1] == '\n')) + strbuf_setlen(buf, p - buf->buf); + strbuf_release(&pattern); +} + static void wt_status_print_verbose(struct wt_status *s) { struct rev_info rev; @@ -787,10 +802,20 @@ static void wt_status_print_verbose(struct wt_status *s) * If we're not going to stdout, then we definitely don't * want color, since we are going to the commit message * file (and even the "auto" setting won't work, since it - * will have checked isatty on stdout). + * will have checked isatty on stdout). But we then do want + * to insert the scissor line here to reliably remove the + * diff before committing. */ - if (s->fp != stdout) + if (s->fp != stdout) { + const char *explanation = _("Do not touch the line above.\nEverything below will be removed."); + struct strbuf buf = STRBUF_INIT; + rev.diffopt.use_color = 0; + fprintf(s->fp, "%c %s", comment_line_char, cut_line); + strbuf_add_commented_lines(&buf, explanation, strlen(explanation)); + fputs(buf.buf, s->fp); + strbuf_release(&buf); + } run_diff_index(&rev, 1); } -- cgit v1.2.3