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From: Sergey Organov <sorganov@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: "Jeff King" <peff@peff.net>,
	"Philip Oakley" <philipoakley@iee.email>,
	"Elijah Newren" <newren@gmail.com>,
	"Felipe Contreras" <felipe.contreras@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	git@vger.kernel.org, "Sergey Organov" <sorganov@gmail.com>
Subject: [PATCH v2 4/5] diff-merges: introduce log.diffMerges config variable
Date: Tue, 13 Apr 2021 14:41:17 +0300	[thread overview]
Message-ID: <20210413114118.25693-5-sorganov@gmail.com> (raw)
In-Reply-To: <20210413114118.25693-1-sorganov@gmail.com>

New log.diffMerges configuration variable sets the format that
--diff-merges=on will be using. The default is "separate".

t4013: add the following tests for log.diffMerges config:

* Test that wrong values are denied.

* Test that the value of log.diffMerges properly affects both
--diff-merges=on and -m.

t9902: fix completion tests for log.d* to match log.diffMerges.

Added documentation for log.diffMerges.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
---
 Documentation/config/log.txt |  5 +++++
 builtin/log.c                |  2 ++
 diff-merges.c                | 11 +++++++++++
 diff-merges.h                |  2 ++
 t/t4013-diff-various.sh      | 23 +++++++++++++++++++++++
 t/t9902-completion.sh        |  3 +++
 6 files changed, 46 insertions(+)

diff --git a/Documentation/config/log.txt b/Documentation/config/log.txt
index 208d5fdcaa68..456eb07800cb 100644
--- a/Documentation/config/log.txt
+++ b/Documentation/config/log.txt
@@ -24,6 +24,11 @@ log.excludeDecoration::
 	the config option can be overridden by the `--decorate-refs`
 	option.
 
+log.diffMerges::
+	Set default diff format to be used for merge commits. See
+	`--diff-merges` in linkgit:git-log[1] for details.
+	Defaults to `separate`.
+
 log.follow::
 	If `true`, `git log` will act as if the `--follow` option was used when
 	a single <path> is given.  This has the same limitations as `--follow`,
diff --git a/builtin/log.c b/builtin/log.c
index 8acd285dafd8..6102893fccb9 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -481,6 +481,8 @@ static int git_log_config(const char *var, const char *value, void *cb)
 			decoration_style = 0; /* maybe warn? */
 		return 0;
 	}
+	if (!strcmp(var, "log.diffmerges"))
+		return diff_merges_config(value);
 	if (!strcmp(var, "log.showroot")) {
 		default_show_root = git_config_bool(var, value);
 		return 0;
diff --git a/diff-merges.c b/diff-merges.c
index 9d19225b3ec9..f3a9daed7e05 100644
--- a/diff-merges.c
+++ b/diff-merges.c
@@ -90,6 +90,17 @@ static void set_diff_merges(struct rev_info *revs, const char *optarg)
  * Public functions. They are in the order they are called.
  */
 
+int diff_merges_config(const char *value)
+{
+	diff_merges_setup_func_t func = func_by_opt(value);
+
+	if (!func)
+		return -1;
+
+	set_to_default = func;
+	return 0;
+}
+
 int diff_merges_parse_opts(struct rev_info *revs, const char **argv)
 {
 	int argcount = 1;
diff --git a/diff-merges.h b/diff-merges.h
index 659467c99a4f..09d9a6c9a4fb 100644
--- a/diff-merges.h
+++ b/diff-merges.h
@@ -9,6 +9,8 @@
 
 struct rev_info;
 
+int diff_merges_config(const char *value);
+
 int diff_merges_parse_opts(struct rev_info *revs, const char **argv);
 
 void diff_merges_suppress(struct rev_info *revs);
diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
index 26a7b4d19d4d..87def81699bf 100755
--- a/t/t4013-diff-various.sh
+++ b/t/t4013-diff-various.sh
@@ -460,6 +460,29 @@ test_expect_success 'log --diff-merges=on matches --diff-merges=separate' '
 	test_cmp expected actual
 '
 
+test_expect_success 'deny wrong log.diffMerges config' '
+	test_config log.diffMerges wrong-value &&
+	test_expect_code 128 git log
+'
+
+test_expect_success 'git config log.diffMerges first-parent' '
+	git log -p --diff-merges=first-parent master >result &&
+	process_diffs result >expected &&
+	test_config log.diffMerges first-parent &&
+	git log -p --diff-merges=on master >result &&
+	process_diffs result >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'git config log.diffMerges first-parent vs -m' '
+	git log -p --diff-merges=first-parent master >result &&
+	process_diffs result >expected &&
+	test_config log.diffMerges first-parent &&
+	git log -p -m master >result &&
+	process_diffs result >actual &&
+	test_cmp expected actual
+'
+
 test_expect_success 'log -S requires an argument' '
 	test_must_fail git log -S
 '
diff --git a/t/t9902-completion.sh b/t/t9902-completion.sh
index 04ce884ef5ac..4d732d6d4f81 100755
--- a/t/t9902-completion.sh
+++ b/t/t9902-completion.sh
@@ -2306,6 +2306,7 @@ test_expect_success 'git config - variable name' '
 	test_completion "git config log.d" <<-\EOF
 	log.date Z
 	log.decorate Z
+	log.diffMerges Z
 	EOF
 '
 
@@ -2327,6 +2328,7 @@ test_expect_success 'git -c - variable name' '
 	test_completion "git -c log.d" <<-\EOF
 	log.date=Z
 	log.decorate=Z
+	log.diffMerges=Z
 	EOF
 '
 
@@ -2348,6 +2350,7 @@ test_expect_success 'git clone --config= - variable name' '
 	test_completion "git clone --config=log.d" <<-\EOF
 	log.date=Z
 	log.decorate=Z
+	log.diffMerges=Z
 	EOF
 '
 
-- 
2.25.1


  parent reply	other threads:[~2021-04-13 11:42 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-07 22:55 [PATCH 0/9] git log: configurable default format for merge diffs Sergey Organov
2021-04-07 22:56 ` [PATCH 1/9] diff-merges: introduce --diff-merges=def Sergey Organov
2021-04-08 11:48   ` Philip Oakley
2021-04-08 14:21     ` Sergey Organov
2021-04-08 17:27       ` Junio C Hamano
2021-04-08 17:38         ` Sergey Organov
2021-04-07 22:56 ` [PATCH 2/9] diff-merges: refactor set_diff_merges() Sergey Organov
2021-04-07 22:56 ` [PATCH 3/9] diff-merges: introduce log.diffMerges config variable Sergey Organov
2021-04-08 21:37   ` SZEDER Gábor
2021-04-08 21:51     ` SZEDER Gábor
2021-04-08 22:01       ` Junio C Hamano
2021-04-08 23:04       ` Sergey Organov
2021-04-07 22:56 ` [PATCH 4/9] diff-merges: adapt -m to enable default diff format Sergey Organov
2021-04-07 22:56 ` [PATCH 5/9] t4013: add test for --diff-merges=def Sergey Organov
2021-04-07 22:56 ` [PATCH 6/9] t4013: add tests for log.diffMerges config Sergey Organov
2021-04-07 23:06   ` Ævar Arnfjörð Bjarmason
2021-04-07 23:35     ` Junio C Hamano
2021-04-08 14:25     ` Sergey Organov
2021-04-07 22:56 ` [PATCH 7/9] t9902: fix completion tests for log.d* to match log.diffMerges Sergey Organov
2021-04-07 23:05   ` Ævar Arnfjörð Bjarmason
2021-04-08 14:41     ` Sergey Organov
2021-04-08 19:50       ` Ævar Arnfjörð Bjarmason
2021-04-08 20:26         ` Sergey Organov
2021-04-08 22:13           ` SZEDER Gábor
2021-04-08 23:07             ` Sergey Organov
2021-04-07 22:56 ` [PATCH 8/9] doc/diff-options: document new --diff-merges features Sergey Organov
2021-04-07 22:56 ` [PATCH 9/9] doc/config: document log.diffMerges Sergey Organov
2021-04-10 17:16 ` [PATCH v1 0/5] git log: configurable default format for merge diffs Sergey Organov
2021-04-10 17:16   ` [PATCH v1 1/5] diff-merges: introduce --diff-merges=default Sergey Organov
2021-04-10 17:16   ` [PATCH v1 2/5] diff-merges: refactor set_diff_merges() Sergey Organov
2021-04-10 17:16   ` [PATCH v1 3/5] diff-merges: adapt -m to enable default diff format Sergey Organov
2021-04-10 17:16   ` [PATCH v1 4/5] diff-merges: introduce log.diffMerges config variable Sergey Organov
2021-04-10 17:16   ` [PATCH v1 5/5] doc/diff-options: document new --diff-merges features Sergey Organov
2021-04-11 16:13   ` [PATCH v1 0/5] git log: configurable default format for merge diffs Junio C Hamano
2021-04-11 18:04     ` Sergey Organov
2021-04-11 19:02       ` Junio C Hamano
2021-04-11 20:38         ` Sergey Organov
2021-04-11 21:58         ` Sergey Organov
2021-04-13 11:41 ` [PATCH v2 " Sergey Organov
2021-04-13 11:41   ` [PATCH v2 1/5] diff-merges: introduce --diff-merges=on Sergey Organov
2021-04-13 23:18     ` Junio C Hamano
2021-04-13 11:41   ` [PATCH v2 2/5] diff-merges: refactor set_diff_merges() Sergey Organov
2021-04-13 11:41   ` [PATCH v2 3/5] diff-merges: adapt -m to enable default diff format Sergey Organov
2021-04-13 11:41   ` Sergey Organov [this message]
2021-04-15 20:21     ` [PATCH v2 4/5] diff-merges: introduce log.diffMerges config variable Junio C Hamano
2021-04-16  8:30       ` Sergey Organov
2021-04-13 11:41   ` [PATCH v2 5/5] doc/diff-options: document new --diff-merges features Sergey Organov

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