git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[PATCH v2 06/12] builtin/show-ref: stop using global variable to count matches

From
Patrick Steinhardt <ps@pks.im>
Date
Oct 26, 2023, 09:56 UTC
Message-ID
<d52a5e8ced2adc5c9315edea9fc497d1ffa30125.1698314128.git.ps@pks.im>
In-Reply-To
<cover.1698314128.git.ps@pks.im>

When passing patterns to git-show-ref(1) we're checking whether any reference matches -- if none does, we indicate this condition via an unsuccessful exit code.

We're using a global variable to count these matches, which is required because the counter is getting incremented in a callback function. But now that we have the `struct show_ref_data` in place, we can get rid of the global variable and put the counter in there instead.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
 builtin/show-ref.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/builtin/show-ref.c b/builtin/show-ref.c
index 90481c58492..c30c01785cc 100644
--- a/builtin/show-ref.c
+++ b/builtin/show-ref.c
@@ -18,7 +18,7 @@ static const char * const show_ref_usage[] = {
 	NULL
 };
 
-static int deref_tags, show_head, tags_only, heads_only, found_match, verify,
+static int deref_tags, show_head, tags_only, heads_only, verify,
 	   quiet, hash_only, abbrev;
 
 static void show_one(const char *refname, const struct object_id *oid)
@@ -50,6 +50,7 @@ static void show_one(const char *refname, const struct object_id *oid)
 
 struct show_ref_data {
 	const char **patterns;
+	int found_match;
 };
 
 static int show_ref(const char *refname, const struct object_id *oid,
@@ -78,7 +79,7 @@ static int show_ref(const char *refname, const struct object_id *oid,
 	}
 
 match:
-	found_match++;
+	data->found_match++;
 
 	show_one(refname, oid);
 
@@ -187,7 +188,7 @@ static int cmd_show_ref__patterns(const char **patterns)
 	} else {
 		for_each_ref(show_ref, &show_ref_data);
 	}
-	if (!found_match)
+	if (!show_ref_data.found_match)
 		return 1;
 
 	return 0;
-- 
2.42.0
Previous: Patrick SteinhardtNext: Taylor Blau
Message 41 of 66 in “show-ref: introduce mode to check for ref existence”
  1. 00/12 show-ref: introduce mode to check for ref existencePatrick Steinhardt, Oct 24, 2023
  2. 01/12 builtin/show-ref: convert pattern to a local variablePatrick Steinhardt, Oct 24, 2023
  3. 02/12 builtin/show-ref: split up different subcommandsPatrick Steinhardt, Oct 24, 2023
  4. Eric SunshineOct 24, 2023
  5. 03/12 builtin/show-ref: fix leaking string bufferPatrick Steinhardt, Oct 24, 2023
  6. 04/12 builtin/show-ref: fix dead code when passing patternsPatrick Steinhardt, Oct 24, 2023
  7. Eric SunshineOct 24, 2023
  8. 05/12 builtin/show-ref: refactor `--exclude-existing` optionsPatrick Steinhardt, Oct 24, 2023
  9. Eric SunshineOct 24, 2023
  10. Patrick SteinhardtOct 25, 2023
  11. 06/12 builtin/show-ref: stop using global variable to count matchesPatrick Steinhardt, Oct 24, 2023
  12. 07/12 builtin/show-ref: stop using global vars for `show_one()`Patrick Steinhardt, Oct 24, 2023
  13. 08/12 builtin/show-ref: refactor options for patterns subcommandPatrick Steinhardt, Oct 24, 2023
  14. 09/12 builtin/show-ref: ensure mutual exclusiveness of subcommandsPatrick Steinhardt, Oct 24, 2023
  15. Eric SunshineOct 24, 2023
  16. 10/12 builtin/show-ref: explicitly spell out different modes in synopsisPatrick Steinhardt, Oct 24, 2023
  17. Eric SunshineOct 24, 2023
  18. Patrick SteinhardtOct 25, 2023
  19. 11/12 builtin/show-ref: add new mode to check for reference existencePatrick Steinhardt, Oct 24, 2023
  20. Eric SunshineOct 24, 2023
  21. Patrick SteinhardtOct 25, 2023
  22. 12/12 t: use git-show-ref(1) to check for ref existencePatrick Steinhardt, Oct 24, 2023
  23. Junio C HamanoOct 24, 2023
  24. Han-Wen NienhuysOct 25, 2023
  25. Phillip WoodOct 25, 2023
  26. Patrick SteinhardtOct 26, 2023
  27. Phillip WoodOct 27, 2023
  28. Patrick SteinhardtOct 26, 2023
  29. 00/12 show-ref: introduce mode to check for ref existencePatrick Steinhardt, Oct 26, 2023
  30. 01/12 builtin/show-ref: convert pattern to a local variablePatrick Steinhardt, Oct 26, 2023
  31. 02/12 builtin/show-ref: split up different subcommandsPatrick Steinhardt, Oct 26, 2023
  32. 03/12 builtin/show-ref: fix leaking string bufferPatrick Steinhardt, Oct 26, 2023
  33. Taylor BlauOct 30, 2023
  34. 04/12 builtin/show-ref: fix dead code when passing patternsPatrick Steinhardt, Oct 26, 2023
  35. Taylor BlauOct 30, 2023
  36. 05/12 builtin/show-ref: refactor `--exclude-existing` optionsPatrick Steinhardt, Oct 26, 2023
  37. Taylor BlauOct 30, 2023
  38. Patrick SteinhardtOct 31, 2023
  39. Taylor BlauOct 30, 2023
  40. Patrick SteinhardtOct 31, 2023
  41. 06/12 builtin/show-ref: stop using global variable to count matchesPatrick Steinhardt, Oct 26, 2023
  42. Taylor BlauOct 30, 2023
  43. 07/12 builtin/show-ref: stop using global vars for `show_one()`Patrick Steinhardt, Oct 26, 2023
  44. 08/12 builtin/show-ref: refactor options for patterns subcommandPatrick Steinhardt, Oct 26, 2023
  45. 09/12 builtin/show-ref: ensure mutual exclusiveness of subcommandsPatrick Steinhardt, Oct 26, 2023
  46. Taylor BlauOct 30, 2023
  47. Patrick SteinhardtOct 31, 2023
  48. 10/12 builtin/show-ref: explicitly spell out different modes in synopsisPatrick Steinhardt, Oct 26, 2023
  49. 11/12 builtin/show-ref: add new mode to check for reference existencePatrick Steinhardt, Oct 26, 2023
  50. 12/12 t: use git-show-ref(1) to check for ref existencePatrick Steinhardt, Oct 26, 2023
  51. Taylor BlauOct 30, 2023
  52. Junio C HamanoOct 31, 2023
  53. 00/12 builtin/show-ref: introduce mode to check for ref existencePatrick Steinhardt, Oct 31, 2023
  54. 01/12 builtin/show-ref: convert pattern to a local variablePatrick Steinhardt, Oct 31, 2023
  55. 02/12 builtin/show-ref: split up different subcommandsPatrick Steinhardt, Oct 31, 2023
  56. 03/12 builtin/show-ref: fix leaking string bufferPatrick Steinhardt, Oct 31, 2023
  57. 04/12 builtin/show-ref: fix dead code when passing patternsPatrick Steinhardt, Oct 31, 2023
  58. 05/12 builtin/show-ref: refactor `--exclude-existing` optionsPatrick Steinhardt, Oct 31, 2023
  59. 06/12 builtin/show-ref: stop using global variable to count matchesPatrick Steinhardt, Oct 31, 2023
  60. 07/12 builtin/show-ref: stop using global vars for `show_one()`Patrick Steinhardt, Oct 31, 2023
  61. 08/12 builtin/show-ref: refactor options for patterns subcommandPatrick Steinhardt, Oct 31, 2023
  62. 09/12 builtin/show-ref: ensure mutual exclusiveness of subcommandsPatrick Steinhardt, Oct 31, 2023
  63. 10/12 builtin/show-ref: explicitly spell out different modes in synopsisPatrick Steinhardt, Oct 31, 2023
  64. 11/12 builtin/show-ref: add new mode to check for reference existencePatrick Steinhardt, Oct 31, 2023
  65. 12/12 t: use git-show-ref(1) to check for ref existencePatrick Steinhardt, Oct 31, 2023
  66. Taylor BlauOct 31, 2023

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.