config: add '--show-origin' option to print the origin of a config value
If config values are queried using 'git config' (e.g. via --get,
--get-all, --get-regexp, or --list flag) then it is sometimes hard to
find the configuration file where the values were defined.
Teach 'git config' the '--show-origin' option to print the source
configuration file for every printed value.
Based-on-patch-by: Jeff King <peff@peff.net>
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/config.c b/builtin/config.c
index adc7727..0f14220 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -3,6 +3,7 @@
#include "color.h"
#include "parse-options.h"
#include "urlmatch.h"
+#include "quote.h"
static const char *const builtin_config_usage[] = {
N_("git config [<options>]"),
@@ -27,6 +28,7 @@
static const char *get_color_slot, *get_colorbool_slot;
static int end_null;
static int respect_includes = -1;
+static int show_origin;
#define ACTION_GET (1<<0)
#define ACTION_GET_ALL (1<<1)
@@ -81,6 +83,7 @@
OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")),
+ OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")),
OPT_END(),
};
@@ -91,8 +94,28 @@
usage_with_options(builtin_config_usage, builtin_config_options);
}
+static void show_config_origin(struct strbuf *buf)
+{
+ const char term = end_null ? '\0' : '\t';
+
+ strbuf_addstr(buf, current_config_origin_type());
+ strbuf_addch(buf, ':');
+ if (end_null)
+ strbuf_addstr(buf, current_config_name());
+ else
+ quote_c_style(current_config_name(), buf, NULL, 0);
+ strbuf_addch(buf, term);
+}
+
static int show_all_config(const char *key_, const char *value_, void *cb)
{
+ if (show_origin) {
+ struct strbuf buf = STRBUF_INIT;
+ show_config_origin(&buf);
+ /* Use fwrite as "buf" can contain \0's if "end_null" is set. */
+ fwrite(buf.buf, 1, buf.len, stdout);
+ strbuf_release(&buf);
+ }
if (!omit_values && value_)
printf("%s%c%s%c", key_, delim, value_, term);
else
@@ -108,6 +131,8 @@
static int format_config(struct strbuf *buf, const char *key_, const char *value_)
{
+ if (show_origin)
+ show_config_origin(buf);
if (show_keys)
strbuf_addstr(buf, key_);
if (!omit_values) {
@@ -538,6 +563,14 @@
error("--name-only is only applicable to --list or --get-regexp");
usage_with_options(builtin_config_usage, builtin_config_options);
}
+
+ if (show_origin && !(actions &
+ (ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
+ error("--show-origin is only applicable to --get, --get-all, "
+ "--get-regexp, and --list.");
+ usage_with_options(builtin_config_usage, builtin_config_options);
+ }
+
if (actions == ACTION_LIST) {
check_argc(argc, 0, 0);
if (git_config_with_options(show_all_config, NULL,
