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config: add '--show-scope' to print the scope of a config value

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When a user queries config values with --show-origin, often it's
difficult to determine what the actual "scope" (local, global, etc.) of
a given value is based on just the origin file.

Teach 'git config' the '--show-scope' option to print the scope of all
displayed config values.  Note that we should never see anything of
"submodule" scope as that is only ever used by submodule-config.c when
parsing the '.gitmodules' file.

Signed-off-by: Matthew Rogers <mattr94@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Matthew Rogers
2020-02-10 00:30:59 +00:00
committed by Junio C Hamano
parent 9a83d088ee
commit 145d59f482
3 changed files with 87 additions and 7 deletions
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20
builtin/config.c
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@ -33,6 +33,7 @@ static int end_nul;
static int respect_includes_opt = -1;
static struct config_options config_options;
static int show_origin;
static int show_scope;
#define ACTION_GET (1<<0)
#define ACTION_GET_ALL (1<<1)
@ -155,6 +156,7 @@ static struct option builtin_config_options[] = {
OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
OPT_BOOL(0, "includes", &respect_includes_opt, 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_BOOL(0, "show-scope", &show_scope, N_("show scope of config (worktree, local, global, system, command)")),
OPT_STRING(0, "default", &default_value, N_("value"), N_("with --get, use default value when missing entry")),
OPT_END(),
};
@ -189,11 +191,23 @@ static void show_config_origin(struct strbuf *buf)
strbuf_addch(buf, term);
}
static void show_config_scope(struct strbuf *buf)
{
const char term = end_nul ? '\0' : '\t';
const char *scope = config_scope_name(current_config_scope());
strbuf_addstr(buf, N_(scope));
strbuf_addch(buf, term);
}
static int show_all_config(const char *key_, const char *value_, void *cb)
{
if (show_origin) {
if (show_origin || show_scope) {
struct strbuf buf = STRBUF_INIT;
show_config_origin(&buf);
if (show_scope)
show_config_scope(&buf);
if (show_origin)
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);
@ -213,6 +227,8 @@ struct strbuf_list {
static int format_config(struct strbuf *buf, const char *key_, const char *value_)
{
if (show_scope)
show_config_scope(buf);
if (show_origin)
show_config_origin(buf);
if (show_keys)