[PATCH v2] diff: Add diff.orderfile configuration variable
From: Anders Waldenborg <anders@0x63.nu>
diff.orderfile acts as a default for the -O command line option.
[sb: fixed testcases & revised docs based on Jonathan Nieder's suggestions]
Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Thanks-to: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Samuel Bronson <naesten@gmail.com>
---
*I* even verified that the tests do fail properly when the feature is
sabotaged.
Documentation/diff-config.txt | 5 +++
Documentation/diff-options.txt | 2 ++
diff.c | 5 +++
t/t4056-diff-order.sh | 79 ++++++++++++++++++++++++++++++++++++++++++
4 files changed, 91 insertions(+)
create mode 100755 t/t4056-diff-order.sh
diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt
index 223b931..f07b451 100644
--- a/Documentation/diff-config.txt
+++ b/Documentation/diff-config.txt
@@ -98,6 +98,11 @@ diff.mnemonicprefix::
diff.noprefix::
If set, 'git diff' does not show any source or destination prefix.
+diff.orderfile::
+ File indicating how to order files within a diff, using
+ one shell glob pattern per line.
+ Can be overridden by the '-O' option to linkgit:git-diff[1].
+
diff.renameLimit::
The number of files to consider when performing the copy/rename
detection; equivalent to the 'git diff' option '-l'.
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index bbed2cd..1af5a5e 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -432,6 +432,8 @@ endif::git-format-patch[]
-O<orderfile>::
Output the patch in the order specified in the
<orderfile>, which has one shell glob pattern per line.
+ This overrides the `diff.orderfile' configuration variable
+ ((see linkgit:git-config[1]).
ifndef::git-format-patch[]
-R::
diff --git a/diff.c b/diff.c
index e34bf97..a92b570 100644
--- a/diff.c
+++ b/diff.c
@@ -30,6 +30,7 @@ static int diff_use_color_default = -1;
static int diff_context_default = 3;
static const char *diff_word_regex_cfg;
static const char *external_diff_cmd_cfg;
+static const char *diff_order_file_cfg;
int diff_auto_refresh_index = 1;
static int diff_mnemonic_prefix;
static int diff_no_prefix;
@@ -201,6 +202,8 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
return git_config_string(&external_diff_cmd_cfg, var, value);
if (!strcmp(var, "diff.wordregex"))
return git_config_string(&diff_word_regex_cfg, var, value);
+ if (!strcmp(var, "diff.orderfile"))
+ return git_config_string(&diff_order_file_cfg, var, value);
if (!strcmp(var, "diff.ignoresubmodules"))
handle_ignore_submodules_arg(&default_diff_options, value);
@@ -3207,6 +3210,8 @@ void diff_setup(struct diff_options *options)
options->detect_rename = diff_detect_rename_default;
options->xdl_opts |= diff_algorithm;
+ options->orderfile = diff_order_file_cfg;
+
if (diff_no_prefix) {
options->a_prefix = options->b_prefix = "";
} else if (!diff_mnemonic_prefix) {
diff --git a/t/t4056-diff-order.sh b/t/t4056-diff-order.sh
new file mode 100755
index 0000000..a756b34
--- /dev/null
+++ b/t/t4056-diff-order.sh
@@ -0,0 +1,79 @@
+#!/bin/sh
+
+test_description='diff order'
+
+. ./test-lib.sh
+
+create_files () {
+ echo "$1" >a.h &&
+ echo "$1" >b.c &&
+ echo "$1" >c/Makefile &&
+ echo "$1" >d.txt &&
+ git add a.h b.c c/Makefile d.txt &&
+ git commit -m"$1"
+ return $?
+}
+
+test_expect_success "setup" '
+ mkdir c &&
+ create_files 1 &&
+ create_files 2
+'
+
+cat >order_file_1 <<EOF
+*Makefile
+*.txt
+*.h
+*
+EOF
+cat >order_file_2 <<EOF
+*Makefile
+*.h
+*.c
+*
+EOF
+
+cat >expect_diff_headers_none <<EOF
+diff --git a/a.h b/a.h
+diff --git a/b.c b/b.c
+diff --git a/c/Makefile b/c/Makefile
+diff --git a/d.txt b/d.txt
+EOF
+
+cat >expect_diff_headers_1 <<EOF
+diff --git a/c/Makefile b/c/Makefile
+diff --git a/d.txt b/d.txt
+diff --git a/a.h b/a.h
+diff --git a/b.c b/b.c
+EOF
+
+cat >expect_diff_headers_2 <<EOF
+diff --git a/c/Makefile b/c/Makefile
+diff --git a/a.h b/a.h
+diff --git a/b.c b/b.c
+diff --git a/d.txt b/d.txt
+EOF
+
+test_expect_success "no order (=tree object order)" '
+ git diff HEAD^..HEAD >patch &&
+ grep ^diff patch >actual_diff_headers &&
+ test_cmp expect_diff_headers_none actual_diff_headers
+'
+
+for i in 1 2; do
+ test_expect_success "orderfile using option ($i)" "
+ git diff -Oorder_file_$i HEAD^..HEAD >patch &&
+ grep ^diff patch >actual_diff_headers &&
+ test_cmp expect_diff_headers_$i actual_diff_headers
+"
+done
+
+for i in 1 2; do
+ test_expect_success "orderfile using config ($i)" "
+ git -c diff.orderfile=order_file_$i diff HEAD^..HEAD >patch &&
+ grep ^diff patch >actual_diff_headers &&
+ test_cmp expect_diff_headers_$i actual_diff_headers
+"
+done
+
+test_done
--
1.8.4.3
Samuel Bronson <naesten@gmail.com>