[PATCH v2] wt-status: use rename settings from init_diff_ui_defaults

["Eckhard S. Maaß" <eckhard.s.maass@googlemail.com>]

Since the very beginning, git status behaved differently for rename
detection than other rename aware commands like git log or git show as
it has the use of rename hard coded into it.  After 5404c116aa ("diff:
activate diff.renames by default", 2016-02-25) the default behaves the
same by coincidence, but a work flow like

    - git add .
    - git status
    - git commit
    - git show

should give you the same information on renames (and/or copies if
activated) accordingly to the diff.renames and diff.renameLimit setting.

With this commit the hard coded settings are dropped from the status
command.

Signed-off-by: Eckhard S. Maaß <eckhard.s.maass@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
---
 builtin/commit.c       |  2 +-
 t/t4001-diff-rename.sh | 12 ++++++++++++
 wt-status.c            |  4 ----
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/builtin/commit.c b/builtin/commit.c
index 5571d4a3e2..5240f11225 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -161,9 +161,9 @@ static void determine_whence(struct wt_status *s)
 static void status_init_config(struct wt_status *s, config_fn_t fn)
 {
 	wt_status_prepare(s);
+	init_diff_ui_defaults();
 	git_config(fn, s);
 	determine_whence(s);
-	init_diff_ui_defaults();
 	s->hints = advice_status_hints; /* must come after git_config() */
 }
 
diff --git a/t/t4001-diff-rename.sh b/t/t4001-diff-rename.sh
index a07816d560..bf4030371a 100755
--- a/t/t4001-diff-rename.sh
+++ b/t/t4001-diff-rename.sh
@@ -138,6 +138,18 @@ test_expect_success 'favour same basenames over different ones' '
 	test_i18ngrep "renamed: .*path1 -> subdir/path1" out
 '
 
+test_expect_success 'test diff.renames=true for git status' '
+	git -c diff.renames=true status >out &&
+	test_i18ngrep "renamed: .*path1 -> subdir/path1" out
+'
+
+test_expect_success 'test diff.renames=false for git status' '
+	git -c diff.renames=false status >out &&
+	test_i18ngrep ! "renamed: .*path1 -> subdir/path1" out &&
+	test_i18ngrep "new file: .*subdir/path1" out &&
+	test_i18ngrep "deleted: .*[^/]path1" out
+'
+
 test_expect_success 'favour same basenames even with minor differences' '
 	git show HEAD:path1 | sed "s/15/16/" > subdir/path1 &&
 	git status >out &&
diff --git a/wt-status.c b/wt-status.c
index 50815e5faf..32f3bcaebd 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -625,9 +625,6 @@ static void wt_status_collect_changes_index(struct wt_status *s)
 	rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
 	rev.diffopt.format_callback = wt_status_collect_updated_cb;
 	rev.diffopt.format_callback_data = s;
-	rev.diffopt.detect_rename = DIFF_DETECT_RENAME;
-	rev.diffopt.rename_limit = 200;
-	rev.diffopt.break_opt = 0;
 	copy_pathspec(&rev.prune_data, &s->pathspec);
 	run_diff_index(&rev, 1);
 }
@@ -985,7 +982,6 @@ static void wt_longstatus_print_verbose(struct wt_status *s)
 	setup_revisions(0, NULL, &rev, &opt);
 
 	rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
-	rev.diffopt.detect_rename = DIFF_DETECT_RENAME;
 	rev.diffopt.file = s->fp;
 	rev.diffopt.close_file = 0;
 	/*
-- 
2.17.0.252.gfe0a9eaf31