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[PATCH 2/6] ident: keep separate "explicit" flags for author and committer

From
Jeff King <peff@peff.net>
Date
Nov 13, 2012, 16:52 UTC
Message-ID
<20121113165203.GB12626@sigill.intra.peff.net>
In-Reply-To
<20121113164845.GD20361@sigill.intra.peff.net>

We keep track of whether the user ident was given to us explicitly, or if we guessed at it from system parameters like username and hostname. However, we kept only a single variable. This covers the common cases (because the author and committer will usually come from the same explicit source), but can miss two cases:

  1. GIT_COMMITTER_* is set explicitly, but we fallback for
     GIT_AUTHOR. We claim the ident is explicit, even though
     the author is not.
  2. GIT_AUTHOR_* is set and we ask for author ident, but
     not committer ident. We will claim the ident is
     implicit, even though it is explicit.

This patch uses two variables instead of one, updates both when we set the "fallback" values, and updates them individually when we read from the environment.

Rather than keep user_ident_sufficiently_given as a compatibility wrapper, we update the only two callers to check the committer_ident, which matches their intent and what was happening already.

Signed-off-by: Jeff King <peff@peff.net>
---
Case 1 made me initially think might need to check
author_ident_sufficiently_given when deciding whether to show the
"Author:" line during commit.  But I don't think it is necessary, as we
already check !strcmp(author, committer); if the committer is explicit
and the author is identical, even if it is implicit, there is no point
in telling the user.
 builtin/commit.c |  4 ++--
 cache.h          |  3 ++-
 ident.c          | 32 +++++++++++++++++++++++++-------
 3 files changed, 29 insertions(+), 10 deletions(-)
diff --git a/builtin/commit.c b/builtin/commit.c
index 1dd2ec5..d6dd3df 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -755,7 +755,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 				ident_shown++ ? "" : "\n",
 				author_ident->buf);
 
-		if (!user_ident_sufficiently_given())
+		if (!committer_ident_sufficiently_given())
 			status_printf_ln(s, GIT_COLOR_NORMAL,
 				_("%s"
 				"Committer: %s"),
@@ -1265,7 +1265,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1,
 		strbuf_addstr(&format, "\n Author: ");
 		strbuf_addbuf_percentquote(&format, &author_ident);
 	}
-	if (!user_ident_sufficiently_given()) {
+	if (!committer_ident_sufficiently_given()) {
 		strbuf_addstr(&format, "\n Committer: ");
 		strbuf_addbuf_percentquote(&format, &committer_ident);
 		if (advice_implicit_identity) {
diff --git a/cache.h b/cache.h
index 50d9eea..18fdd18 100644
--- a/cache.h
+++ b/cache.h
@@ -1149,7 +1149,8 @@ struct config_include_data {
 #define CONFIG_INCLUDE_INIT { 0 }
 extern int git_config_include(const char *name, const char *value, void *data);
 
-extern int user_ident_sufficiently_given(void);
+extern int committer_ident_sufficiently_given(void);
+extern int author_ident_sufficiently_given(void);
 
 extern const char *git_commit_encoding;
 extern const char *git_log_output_encoding;
diff --git a/ident.c b/ident.c
index 733d69d..ac9672f 100644
--- a/ident.c
+++ b/ident.c
@@ -14,7 +14,8 @@ static char git_default_date[50];
 #define IDENT_NAME_GIVEN 01
 #define IDENT_MAIL_GIVEN 02
 #define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN)
-static int user_ident_explicitly_given;
+static int committer_ident_explicitly_given;
+static int author_ident_explicitly_given;
 
 #ifdef NO_GECOS_IN_PWENT
 #define get_gecos(ignored) "&"
@@ -113,7 +114,8 @@ const char *ident_default_email(void)
 
 		if (email && email[0]) {
 			strbuf_addstr(&git_default_email, email);
-			user_ident_explicitly_given |= IDENT_MAIL_GIVEN;
+			committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
+			author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
 		} else
 			copy_email(xgetpwuid_self(), &git_default_email);
 		strbuf_trim(&git_default_email);
@@ -331,6 +333,10 @@ const char *fmt_name(const char *name, const char *email)
 
 const char *git_author_info(int flag)
 {
+	if (getenv("GIT_AUTHOR_NAME"))
+		author_ident_explicitly_given |= IDENT_NAME_GIVEN;
+	if (getenv("GIT_AUTHOR_EMAIL"))
+		author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
 	return fmt_ident(getenv("GIT_AUTHOR_NAME"),
 			 getenv("GIT_AUTHOR_EMAIL"),
 			 getenv("GIT_AUTHOR_DATE"),
@@ -340,16 +346,16 @@ const char *git_author_info(int flag)
 const char *git_committer_info(int flag)
 {
 	if (getenv("GIT_COMMITTER_NAME"))
-		user_ident_explicitly_given |= IDENT_NAME_GIVEN;
+		committer_ident_explicitly_given |= IDENT_NAME_GIVEN;
 	if (getenv("GIT_COMMITTER_EMAIL"))
-		user_ident_explicitly_given |= IDENT_MAIL_GIVEN;
+		committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
 	return fmt_ident(getenv("GIT_COMMITTER_NAME"),
 			 getenv("GIT_COMMITTER_EMAIL"),
 			 getenv("GIT_COMMITTER_DATE"),
 			 flag);
 }
 
-int user_ident_sufficiently_given(void)
+static int ident_is_sufficient(int user_ident_explicitly_given)
 {
 #ifndef WINDOWS
 	return (user_ident_explicitly_given & IDENT_MAIL_GIVEN);
@@ -358,6 +364,16 @@ int user_ident_sufficiently_given(void)
 #endif
 }
 
+int committer_ident_sufficiently_given(void)
+{
+	return ident_is_sufficient(committer_ident_explicitly_given);
+}
+
+int author_ident_sufficiently_given(void)
+{
+	return ident_is_sufficient(author_ident_explicitly_given);
+}
+
 int git_ident_config(const char *var, const char *value, void *data)
 {
 	if (!strcmp(var, "user.name")) {
@@ -365,7 +381,8 @@ int git_ident_config(const char *var, const char *value, void *data)
 			return config_error_nonbool(var);
 		strbuf_reset(&git_default_name);
 		strbuf_addstr(&git_default_name, value);
-		user_ident_explicitly_given |= IDENT_NAME_GIVEN;
+		committer_ident_explicitly_given |= IDENT_NAME_GIVEN;
+		author_ident_explicitly_given |= IDENT_NAME_GIVEN;
 		return 0;
 	}
 
@@ -374,7 +391,8 @@ int git_ident_config(const char *var, const char *value, void *data)
 			return config_error_nonbool(var);
 		strbuf_reset(&git_default_email);
 		strbuf_addstr(&git_default_email, value);
-		user_ident_explicitly_given |= IDENT_MAIL_GIVEN;
+		committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
+		author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
 		return 0;
 	}
 
-- 
1.8.0.207.gdf2154c
Previous: Jeff KingNext: Jeff King
Message 22 of 76 in “send-email: add proper default sender”
  1. send-email: add proper default senderFelipe Contreras, Nov 11, 2012
  2. Ramkumar RamachandraNov 11, 2012
  3. Felipe ContrerasNov 11, 2012
  4. Jeff KingNov 12, 2012
  5. Felipe ContrerasNov 12, 2012
  6. Jeff KingNov 13, 2012
  7. Jeff KingNov 13, 2012
  8. Junio C HamanoNov 13, 2012
  9. Felipe ContrerasNov 13, 2012
  10. Jeff KingNov 13, 2012
  11. Jeff KingNov 13, 2012
  12. Felipe ContrerasNov 13, 2012
  13. Jeff KingNov 13, 2012
  14. Felipe ContrerasNov 13, 2012
  15. Felipe ContrerasNov 13, 2012
  16. Jeff KingNov 13, 2012
  17. Felipe ContrerasNov 13, 2012
  18. Jeff KingNov 13, 2012
  19. 1/6 ident: make user_ident_explicitly_given privateJeff King, Nov 13, 2012
  20. Jonathan NiederNov 14, 2012
  21. Jeff KingNov 14, 2012
  22. 2/6 ident: keep separate "explicit" flags for author and committerJeff King, Nov 13, 2012
  23. 3/6 var: accept multiple variables on the command lineJeff King, Nov 13, 2012
  24. Jonathan NiederNov 14, 2012
  25. Jeff KingNov 14, 2012
  26. 4/6 var: provide explicit/implicit ident informationJeff King, Nov 13, 2012
  27. Jonathan NiederNov 14, 2012
  28. Jeff KingNov 14, 2012
  29. 5/6 Git.pm: teach "ident" to query explicitnessJeff King, Nov 13, 2012
  30. Jonathan NiederNov 14, 2012
  31. Jeff KingNov 14, 2012
  32. 6/6 send-email: do not prompt for explicit repo identJeff King, Nov 13, 2012
  33. Jonathan NiederNov 14, 2012
  34. Jeff KingNov 14, 2012
  35. Jeff KingNov 14, 2012
  36. Felipe ContrerasNov 13, 2012
  37. Jeff KingNov 15, 2012
  38. Felipe ContrerasNov 15, 2012
  39. Jeff KingNov 15, 2012
  40. Felipe ContrerasNov 15, 2012
  41. 0/8 loosening "sender" prompt in send-emailJeff King, Nov 15, 2012
  42. 1/8 test-lib: allow negation of prerequisitesJeff King, Nov 15, 2012
  43. Jonathan NiederNov 15, 2012
  44. Jeff KingNov 15, 2012
  45. Jonathan NiederNov 15, 2012
  46. 2/8 t7502: factor out autoident prerequisiteJeff King, Nov 15, 2012
  47. Jonathan NiederNov 15, 2012
  48. 3/8 ident: make user_ident_explicitly_given staticJeff King, Nov 15, 2012
  49. Jonathan NiederNov 15, 2012
  50. 4/8 ident: keep separate "explicit" flags for author and committerJeff King, Nov 15, 2012
  51. Jonathan NiederNov 15, 2012
  52. 5/8 var: accept multiple variables on the command lineJeff King, Nov 15, 2012
  53. Jonathan NiederNov 15, 2012
  54. 6/8 var: provide explicit/implicit ident informationJeff King, Nov 15, 2012
  55. 7/8 Git.pm: teach "ident" to query explicitnessJeff King, Nov 15, 2012
  56. Jonathan NiederNov 15, 2012
  57. 8/8 send-email: do not prompt for explicit repo identJeff King, Nov 15, 2012
  58. Felipe ContrerasNov 15, 2012
  59. Jeff KingNov 15, 2012
  60. Felipe ContrerasNov 15, 2012
  61. Jeff KingNov 15, 2012
  62. Jeff KingNov 15, 2012
  63. Jeff KingNov 15, 2012
  64. Junio C HamanoNov 15, 2012
  65. Jeff KingNov 15, 2012
  66. Junio C HamanoNov 16, 2012
  67. Jeff KingNov 16, 2012
  68. Felipe ContrerasNov 16, 2012
  69. Jeff KingNov 16, 2012
  70. Junio C HamanoNov 16, 2012
  71. Jonathan NiederNov 15, 2012
  72. Junio C HamanoNov 13, 2012
  73. Jeff KingNov 13, 2012
  74. Junio C HamanoNov 13, 2012
  75. Erik Faye-LundNov 13, 2012
  76. Jeff KingNov 13, 2012

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