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From: Ariadne Conill <ariadne@dereferenced.org>
To: git@vger.kernel.org
Cc: Ariadne Conill <ariadne@dereferenced.org>
Subject: [PATCH v2 1/3] log: add warning for unspecified log.mailmap setting
Date: Fri, 12 Jul 2019 18:02:02 -0500
Message-ID: <20190712230204.16749-2-ariadne@dereferenced.org> (raw)
In-Reply-To: <20190712230204.16749-1-ariadne@dereferenced.org>

Based on discussions around changing the log.mailmap default to being
enabled, it was decided that a transitional period is required.

Accordingly, we announce this transitional period with a warning
message.

Signed-off-by: Ariadne Conill <ariadne@dereferenced.org>
---
 builtin/log.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/builtin/log.c b/builtin/log.c
index 7c8767d3bc..559f42fe48 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -47,7 +47,7 @@ static int default_follow;
 static int default_show_signature;
 static int decoration_style;
 static int decoration_given;
-static int use_mailmap_config;
+static int use_mailmap_config = -1;
 static const char *fmt_patch_subject_prefix = "PATCH";
 static const char *fmt_pretty;
 
@@ -151,6 +151,16 @@ static void cmd_log_init_defaults(struct rev_info *rev)
 		parse_date_format(default_date_mode, &rev->date_mode);
 }
 
+static char warn_unspecified_mailmap_msg[] =
+N_("log.mailmap is not set; its implicit value will change in an\n"
+   "upcoming release. To squelch this message and preserve current\n"
+   "behaviour, set the log.mailmap configuration value to false.\n"
+   "\n"
+   "To squelch this message and adopt the new behaviour now, set the\n"
+   "log.mailmap configuration value to true.\n"
+   "\n"
+   "See 'git help config' and search for 'log.mailmap' for further information.");
+
 static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
 			 struct rev_info *rev, struct setup_revision_opt *opt)
 {
@@ -199,6 +209,19 @@ static void cmd_log_init_finish(int argc, const char **argv, const char *prefix,
 	memset(&w, 0, sizeof(w));
 	userformat_find_requirements(NULL, &w);
 
+	if (mailmap < 0) {
+		/*
+		 * Only display the warning if the session is interactive
+		 * and pretty_given is false. We determine that the session
+		 * is interactive by checking if auto_decoration_style()
+		 * returns non-zero.
+		 */
+		if (auto_decoration_style() && !rev->pretty_given)
+			warning("%s\n", _(warn_unspecified_mailmap_msg));
+
+		mailmap = 0;
+	}
+
 	if (!rev->show_notes_given && (!rev->pretty_given || w.notes))
 		rev->show_notes = 1;
 	if (rev->show_notes)
-- 
2.17.1


  reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-12 23:02 [PATCH v2 0/3] document deprecation of log.mailmap=false default Ariadne Conill
2019-07-12 23:02 ` Ariadne Conill [this message]
2019-07-14 21:55   ` [PATCH v2 1/3] log: add warning for unspecified log.mailmap setting Junio C Hamano
2019-07-12 23:02 ` [PATCH v2 2/3] documentation: mention --no-use-mailmap and log.mailmap false setting Ariadne Conill
2019-07-12 23:02 ` [PATCH v2 3/3] tests: defang pager tests by explicitly disabling the log.mailmap warning Ariadne Conill
2019-07-14 21:56   ` Junio C Hamano

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