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[PATCH v6 1/7] pretty.c: delimit "%(trailers)" arguments with ","

From
Taylor Blau <me@ttaylorr.com>
Date
Oct 2, 2017, 05:25 UTC
Message-ID
<20171002052524.12627-1-me@ttaylorr.com>
In-Reply-To
<20171002052326.GA10729@D-10-157-251-166.dhcp4.washington.edu>

In preparation for adding consistent "%(trailers)" atom options to `git-for-each-ref(1)`'s "--format" argument, change "%(trailers)" in pretty.c to separate sub-arguments with a ",", instead of a ":".

Multiple sub-arguments are given either as "%(trailers:unfold,only)" or "%(trailers:only,unfold)".

This change disambiguates between "top-level" arguments, and arguments given to the trailers atom itself. It is consistent with the behavior of "%(upstream)" and "%(push)" atoms.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
---
 pretty.c                      | 32 +++++++++++++++++++++++++++-----
 t/t4205-log-pretty-formats.sh |  4 ++--
 2 files changed, 29 insertions(+), 7 deletions(-)
diff --git a/pretty.c b/pretty.c
index 94eab5c89..7500fe694 100644
--- a/pretty.c
+++ b/pretty.c
@@ -1056,6 +1056,23 @@ static size_t parse_padding_placeholder(struct strbuf *sb,
 	return 0;
 }
 
+static int match_placeholder_arg(const char *to_parse, const char *candidate,
+				const char **end)
+{
+	const char *p;
+	if (!(skip_prefix(to_parse, candidate, &p)))
+		return 0;
+	if (*p == ',') {
+		*end = p + 1;
+		return 1;
+	}
+	if (*p == ')') {
+		*end = p;
+		return 1;
+	}
+	return 0;
+}
+
 static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
 				const char *placeholder,
 				void *context)
@@ -1285,11 +1302,16 @@ static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
 
 	if (skip_prefix(placeholder, "(trailers", &arg)) {
 		struct process_trailer_options opts = PROCESS_TRAILER_OPTIONS_INIT;
-		while (*arg == ':') {
-			if (skip_prefix(arg, ":only", &arg))
-				opts.only_trailers = 1;
-			else if (skip_prefix(arg, ":unfold", &arg))
-				opts.unfold = 1;
+		if (*arg == ':') {
+			arg++;
+			for (;;) {
+				if (match_placeholder_arg(arg, "only", &arg))
+					opts.only_trailers = 1;
+				else if (match_placeholder_arg(arg, "unfold", &arg))
+					opts.unfold = 1;
+				else
+					break;
+			}
 		}
 		if (*arg == ')') {
 			format_trailers_from_commit(sb, msg + c->subject_off, &opts);
diff --git a/t/t4205-log-pretty-formats.sh b/t/t4205-log-pretty-formats.sh
index ec5f53010..977472f53 100755
--- a/t/t4205-log-pretty-formats.sh
+++ b/t/t4205-log-pretty-formats.sh
@@ -588,8 +588,8 @@ test_expect_success '%(trailers:unfold) unfolds trailers' '
 '
 
 test_expect_success ':only and :unfold work together' '
-	git log --no-walk --pretty="%(trailers:only:unfold)" >actual &&
-	git log --no-walk --pretty="%(trailers:unfold:only)" >reverse &&
+	git log --no-walk --pretty="%(trailers:only,unfold)" >actual &&
+	git log --no-walk --pretty="%(trailers:unfold,only)" >reverse &&
 	test_cmp actual reverse &&
 	{
 		grep -v patch.description <trailers | unfold &&
-- 
2.14.1.145.gb3622a4ee
Previous: Taylor BlauNext: Taylor Blau
Message 61 of 78 in “Support %(trailers) arguments in for-each-ref(1)”
  1. 0/5 Support %(trailers) arguments in for-each-ref(1)Taylor Blau, Sep 30, 2017
  2. 1/5 pretty.c: delimit "%(trailers)" arguments with ","Taylor Blau, Sep 30, 2017
  3. Jeff KingSep 30, 2017
  4. 2/5 t6300: refactor %(trailers) testsTaylor Blau, Sep 30, 2017
  5. Jeff KingSep 30, 2017
  6. 3/5 ref-filter.c: add trailer options to used_atomTaylor Blau, Sep 30, 2017
  7. Jeff KingSep 30, 2017
  8. 4/5 ref-filter.c: use trailer_opts to format trailersTaylor Blau, Sep 30, 2017
  9. Jeff KingSep 30, 2017
  10. Junio C HamanoOct 1, 2017
  11. Junio C HamanoOct 1, 2017
  12. Jeff KingOct 2, 2017
  13. Taylor BlauOct 2, 2017
  14. 5/5 ref-filter.c: parse trailers arguments with %(contents) atomTaylor Blau, Sep 30, 2017
  15. Jeff KingSep 30, 2017
  16. Jeff KingSep 30, 2017
  17. 0/6 Support %(trailers) arguments in for-each-ref(1)Taylor Blau, Sep 30, 2017
  18. 1/6 pretty.c: delimit "%(trailers)" arguments with ","Taylor Blau, Sep 30, 2017
  19. 2/6 t6300: refactor %(trailers) testsTaylor Blau, Sep 30, 2017
  20. 4/6 doc: use modern "`"-style code fencingTaylor Blau, Sep 30, 2017
  21. 5/6 ref-filter.c: use trailer_opts to format trailersTaylor Blau, Sep 30, 2017
  22. 3/6 doc: 'trailers' is the preferred way to format trailersTaylor Blau, Sep 30, 2017
  23. 6/6 ref-filter.c: parse trailers arguments with %(contents) atomTaylor Blau, Sep 30, 2017
  24. Taylor BlauOct 1, 2017
  25. 1/6 pretty.c: delimit "%(trailers)" arguments with ","Taylor Blau, Oct 1, 2017
  26. 2/6 t6300: refactor %(trailers) testsTaylor Blau, Oct 1, 2017
  27. 3/6 doc: 'trailers' is the preferred way to format trailersTaylor Blau, Oct 1, 2017
  28. 4/6 doc: use modern "`"-style code fencingTaylor Blau, Oct 1, 2017
  29. 5/6 ref-filter.c: use trailer_opts to format trailersTaylor Blau, Oct 1, 2017
  30. 6/6 ref-filter.c: parse trailers arguments with %(contents) atomTaylor Blau, Oct 1, 2017
  31. Taylor BlauOct 1, 2017
  32. 1/6 pretty.c: delimit "%(trailers)" arguments with ","Taylor Blau, Oct 1, 2017
  33. 2/6 t6300: refactor %(trailers) testsTaylor Blau, Oct 1, 2017
  34. Junio C HamanoOct 2, 2017
  35. 3/6 doc: 'trailers' is the preferred way to format trailersTaylor Blau, Oct 1, 2017
  36. 4/6 doc: use modern "`"-style code fencingTaylor Blau, Oct 1, 2017
  37. Junio C HamanoOct 1, 2017
  38. Taylor BlauOct 2, 2017
  39. Junio C HamanoOct 2, 2017
  40. Jeff KingOct 2, 2017
  41. 5/6 ref-filter.c: use trailer_opts to format trailersTaylor Blau, Oct 1, 2017
  42. Junio C HamanoOct 2, 2017
  43. 6/6 ref-filter.c: parse trailers arguments with %(contents) atomTaylor Blau, Oct 1, 2017
  44. Junio C HamanoOct 2, 2017
  45. Junio C HamanoOct 2, 2017
  46. Jeff KingOct 2, 2017
  47. Taylor BlauOct 2, 2017
  48. 1/6 pretty.c: delimit "%(trailers)" arguments with ","Taylor Blau, Oct 2, 2017
  49. 2/6 t6300: refactor %(trailers) testsTaylor Blau, Oct 2, 2017
  50. 3/6 doc: 'trailers' is the preferred way to format trailersTaylor Blau, Oct 2, 2017
  51. 5/6 ref-filter.c: use trailer_opts to format trailersTaylor Blau, Oct 2, 2017
  52. 4/6 doc: use modern "`"-style code quotingTaylor Blau, Oct 2, 2017
  53. 6/6 ref-filter.c: parse trailers arguments with %(contents) atomTaylor Blau, Oct 2, 2017
  54. Junio C HamanoOct 2, 2017
  55. Junio C HamanoOct 2, 2017
  56. Taylor BlauOct 2, 2017
  57. Jeff KingOct 2, 2017
  58. Taylor BlauOct 2, 2017
  59. Jeff KingOct 2, 2017
  60. Taylor BlauOct 2, 2017
  61. 1/7 pretty.c: delimit "%(trailers)" arguments with ","Taylor Blau, Oct 2, 2017
  62. 2/7 t4205: unfold across multiple linesTaylor Blau, Oct 2, 2017
  63. 3/7 doc: 'trailers' is the preferred way to format trailersTaylor Blau, Oct 2, 2017
  64. 4/7 doc: use modern "`"-style code quotingTaylor Blau, Oct 2, 2017
  65. 6/7 ref-filter.c: use trailer_opts to format trailersTaylor Blau, Oct 2, 2017
  66. 7/7 ref-filter.c: parse trailers arguments with %(contents) atomTaylor Blau, Oct 2, 2017
  67. Jeff KingOct 2, 2017
  68. Junio C HamanoOct 2, 2017
  69. Taylor BlauOct 2, 2017
  70. Junio C HamanoOct 2, 2017
  71. 5/7 t6300: refactor %(trailers) testsTaylor Blau, Oct 2, 2017
  72. Jeff KingOct 2, 2017
  73. Junio C HamanoOct 3, 2017
  74. Jeff KingOct 3, 2017
  75. Junio C HamanoOct 3, 2017
  76. Junio C HamanoOct 2, 2017
  77. Junio C HamanoOct 2, 2017
  78. Taylor BlauOct 2, 2017

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