[PATCH] In `git log --graph`, default to --pretty=oneline --abbrev-commit

[Alex Henrie <alexhenrie24@gmail.com>]

Having --pretty=medium as the default almost always makes the graph too
difficult to follow.

Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
---
 builtin/log.c          |  5 +++++
 t/t4052-stat-output.sh | 14 +++++++-------
 t/t4202-log.sh         | 14 ++++++++++++++
 3 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/builtin/log.c b/builtin/log.c
index ab859f5904..4fca910fee 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -199,6 +199,11 @@ 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 (rev->graph && !fmt_pretty && !rev->pretty_given && !rev->show_signature) {
+		rev->abbrev_commit = 1;
+		rev->commit_format = CMIT_FMT_ONELINE;
+	}
+
 	if (!rev->show_notes_given && (!rev->pretty_given || w.notes))
 		rev->show_notes = 1;
 	if (rev->show_notes)
diff --git a/t/t4052-stat-output.sh b/t/t4052-stat-output.sh
index 28c053849a..b44776efe3 100755
--- a/t/t4052-stat-output.sh
+++ b/t/t4052-stat-output.sh
@@ -144,7 +144,7 @@ done <<\EOF
 ignores expect72 format-patch -1 --stdout
 respects expect200 diff HEAD^ HEAD --stat
 respects expect200 show --stat
-respects expect200 log -1 --stat
+respects expect200 log -1 --pretty=medium --stat
 EOF
 
 cat >expect40 <<'EOF'
@@ -172,7 +172,7 @@ done <<\EOF
 ignores expect72 format-patch -1 --stdout
 respects expect40 diff HEAD^ HEAD --stat
 respects expect40 show --stat
-respects expect40 log -1 --stat
+respects expect40 log -1 --pretty=medium --stat
 EOF
 
 cat >expect40 <<'EOF'
@@ -200,7 +200,7 @@ done <<\EOF
 ignores expect72 format-patch -1 --stdout
 respects expect40 diff HEAD^ HEAD --stat
 respects expect40 show --stat
-respects expect40 log -1 --stat
+respects expect40 log -1 --pretty=medium --stat
 EOF
 
 
@@ -247,7 +247,7 @@ done <<\EOF
 format-patch -1 --stdout
 diff HEAD^ HEAD --stat
 show --stat
-log -1 --stat
+log -1 --pretty=medium --stat
 EOF
 
 test_expect_success 'preparation for long filename tests' '
@@ -281,7 +281,7 @@ done <<\EOF
 format-patch -1 --stdout
 diff HEAD^ HEAD --stat
 show --stat
-log -1 --stat
+log -1 --pretty=medium --stat
 EOF
 
 cat >expect72 <<'EOF'
@@ -315,7 +315,7 @@ done <<\EOF
 ignores expect72 format-patch -1 --stdout
 respects expect200 diff HEAD^ HEAD --stat
 respects expect200 show --stat
-respects expect200 log -1 --stat
+respects expect200 log -1 --pretty=medium --stat
 EOF
 
 cat >expect1 <<'EOF'
@@ -345,7 +345,7 @@ done <<\EOF
 ignores expect72 format-patch -1 --stdout
 respects expect1 diff HEAD^ HEAD --stat
 respects expect1 show --stat
-respects expect1 log -1 --stat
+respects expect1 log -1 --pretty=medium --stat
 EOF
 
 cat >expect <<'EOF'
diff --git a/t/t4202-log.sh b/t/t4202-log.sh
index 819c24d10e..7cf9f15cec 100755
--- a/t/t4202-log.sh
+++ b/t/t4202-log.sh
@@ -39,6 +39,20 @@ test_expect_success setup '
 
 '
 
+test_expect_success 'default log format' '
+
+	git log --pretty=medium > expect &&
+	git log > actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'default log --graph format' '
+
+	git log --graph --pretty=oneline --abbrev-commit > expect &&
+	git log --graph > actual &&
+	test_cmp expect actual
+'
+
 printf "sixth\nfifth\nfourth\nthird\nsecond\ninitial" > expect
 test_expect_success 'pretty' '
 
-- 
2.21.0