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[PATCH] git-commit: squelch needless message during an empty merge

From
Junio C Hamano <gitster@pobox.com>
Date
Dec 13, 2007, 03:09 UTC
Message-ID
<7v1w9r5m03.fsf_-_@gitster.siamese.dyndns.org>
In-Reply-To
<7vbq8v5n0u.fsf_-_@gitster.siamese.dyndns.org>

When recording a merge that conflicted and ends up in no changes after manual resolution, commit callchain looked like this:

	cmd_commit() ->
            prepare_log_message() ->
                run_status() ->
		    wt_status_print()

This invocation of run_status() is asked to find out if there is a committable change, but it unconditionally gave instructions such as "use git-add" at the same time. When in merge, we do allow an empty change to be recorded, so after showing this message the code still went ahead and made a commit.

This introduces "nowarn" parameter to run_status() to avoid these useless messages. If we are not allowed to create an empty commit, we already call run_status() again in the original codepath, and the message will be shown from that call anyway.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin-commit.c |    9 +++++----
 wt-status.c      |    2 ++
 wt-status.h      |    1 +
 3 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/builtin-commit.c b/builtin-commit.c
index 9cb7589..ad9f921 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -280,7 +280,7 @@ static char *prepare_index(int argc, const char **argv, const char *prefix)
 	return false_lock.filename;
 }
 
-static int run_status(FILE *fp, const char *index_file, const char *prefix)
+static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn)
 {
 	struct wt_status s;
 
@@ -296,6 +296,7 @@ static int run_status(FILE *fp, const char *index_file, const char *prefix)
 	s.untracked = untracked_files;
 	s.index_file = index_file;
 	s.fp = fp;
+	s.nowarn = nowarn;
 
 	wt_status_print(&s);
 
@@ -412,7 +413,7 @@ static int prepare_log_message(const char *index_file, const char *prefix)
 
 	saved_color_setting = wt_status_use_color;
 	wt_status_use_color = 0;
-	commitable = run_status(fp, index_file, prefix);
+	commitable = run_status(fp, index_file, prefix, 1);
 	wt_status_use_color = saved_color_setting;
 
 	fclose(fp);
@@ -606,7 +607,7 @@ int cmd_status(int argc, const char **argv, const char *prefix)
 
 	index_file = prepare_index(argc, argv, prefix);
 
-	commitable = run_status(stdout, index_file, prefix);
+	commitable = run_status(stdout, index_file, prefix, 0);
 
 	rollback_index_files();
 
@@ -717,7 +718,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 
 	if (!prepare_log_message(index_file, prefix) && !in_merge &&
 	    !allow_empty && !(amend && is_a_merge(head_sha1))) {
-		run_status(stdout, index_file, prefix);
+		run_status(stdout, index_file, prefix, 0);
 		rollback_index_files();
 		unlink(commit_editmsg);
 		return 1;
diff --git a/wt-status.c b/wt-status.c
index 51c1879..c0c2472 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -381,6 +381,8 @@ void wt_status_print(struct wt_status *s)
 	if (!s->commitable) {
 		if (s->amend)
 			fprintf(s->fp, "# No changes\n");
+		else if (s->nowarn)
+			; /* nothing */
 		else if (s->workdir_dirty)
 			printf("no changes added to commit (use \"git add\" and/or \"git commit -a\")\n");
 		else if (s->workdir_untracked)
diff --git a/wt-status.h b/wt-status.h
index 63d50f2..02afaa6 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -17,6 +17,7 @@ struct wt_status {
 	int verbose;
 	int amend;
 	int untracked;
+	int nowarn;
 	/* These are computed during processing of the individual sections */
 	int commitable;
 	int workdir_dirty;
Previous: Junio C HamanoNext: Jeff King
Message 48 of 72 in “What's in git/spearce.git (stable)”
  1. Shawn O. PearceOct 22, 2007
  2. What's in git.git (stable)Junio C Hamano, Nov 1, 2007
  3. What's in git.git (stable)Junio C Hamano, Nov 4, 2007
  4. What's in git.git (stable)Junio C Hamano, Nov 8, 2007
  5. Pierre HabouzitNov 8, 2007
  6. What's in git.git (stable)Junio C Hamano, Nov 12, 2007
  7. What's in git.git (stable)Junio C Hamano, Nov 15, 2007
  8. What's in git.git (stable)Junio C Hamano, Nov 17, 2007
  9. What's in git.git (stable)Junio C Hamano, Nov 25, 2007
  10. What's in git.git (stable)Junio C Hamano, Dec 1, 2007
  11. What's in git.git (stable)Junio C Hamano, Dec 4, 2007
  12. What's in git.git (stable)Junio C Hamano, Dec 5, 2007
  13. What's in git.git (stable)Junio C Hamano, Dec 7, 2007
  14. What's in git.git (stable)Junio C Hamano, Dec 9, 2007
  15. v1.5.4 plansJunio C Hamano, Dec 10, 2007
  16. Jeff KingDec 10, 2007
  17. Junio C HamanoDec 11, 2007
  18. Junio C HamanoDec 11, 2007
  19. Jeff KingDec 11, 2007
  20. Junio C HamanoDec 11, 2007
  21. Jeff KingDec 11, 2007
  22. Junio C HamanoDec 11, 2007
  23. Jeff KingDec 11, 2007
  24. Jeff KingDec 11, 2007
  25. Jeff KingDec 11, 2007
  26. 2/2 git-svn: get color config from --get-colorboolJeff King, Dec 11, 2007
  27. Eric WongDec 12, 2007
  28. Jeff KingDec 11, 2007
  29. Andreas EricssonDec 11, 2007
  30. Jeff KingDec 11, 2007
  31. Nicolas PitreDec 11, 2007
  32. Johannes SchindelinDec 11, 2007
  33. Nicolas PitreDec 11, 2007
  34. Kristian HøgsbergDec 11, 2007
  35. Junio C HamanoDec 11, 2007
  36. Eric WongDec 12, 2007
  37. Junio C HamanoDec 12, 2007
  38. David D. KilzerDec 12, 2007
  39. David D. KilzerDec 31, 2007
  40. Fix race condition in t9119-git-svn-info.shDavid D. Kilzer, Dec 31, 2007
  41. Junio C HamanoDec 31, 2007
  42. Remove duplication in t9119-git-svn-info.shDavid D. Kilzer, Dec 31, 2007
  43. Eric WongJan 2, 2008
  44. David D. KilzerJan 2, 2008
  45. Junio C HamanoJan 2, 2008
  46. Junio C HamanoJan 2, 2008
  47. What's in git.git (stable frozen)Junio C Hamano, Dec 13, 2007
  48. git-commit: squelch needless message during an empty mergeJunio C Hamano, Dec 13, 2007
  49. Jeff KingDec 13, 2007
  50. Johannes SixtDec 13, 2007
  51. What's in git.git (stable frozen)Junio C Hamano, Dec 17, 2007
  52. What's in git.git (stable frozen)Junio C Hamano, Dec 23, 2007
  53. What's in git.git (stable frozen)Junio C Hamano, Jan 5, 2008
  54. Dan McGeeJan 5, 2008
  55. Junio C HamanoJan 6, 2008
  56. Junio C HamanoJan 6, 2008
  57. Dan McGeeJan 6, 2008
  58. Junio C HamanoJan 6, 2008
  59. Jeff KingJan 6, 2008
  60. Jeff KingJan 6, 2008
  61. Junio C HamanoJan 6, 2008
  62. Jeff KingJan 6, 2008
  63. Junio C HamanoJan 6, 2008
  64. Jeff KingJan 6, 2008
  65. Junio C HamanoJan 6, 2008
  66. Jeff KingJan 7, 2008
  67. Junio C HamanoJan 7, 2008
  68. Paul MackerrasJan 7, 2008
  69. Christian StimmingJan 7, 2008
  70. Junio C HamanoJan 7, 2008
  71. Steffen ProhaskaDec 17, 2007
  72. Junio C HamanoJan 5, 2008

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