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git-config: collect values instead of immediately printing

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This is a refactor that will allow us to more easily tweak
the behavior for multi-valued variables, and it will
ultimately allow us to remove a lot git-config's custom code
in favor of the regular git_config code.

It does mean we're no longer streaming, and we're storing
more in memory for the --get-all case, but in practice it is
a tiny amount of data, and the results are instantaneous.

Signed-off-by: Jeff King <peff@peff.net>
This commit is contained in:
Jeff King 2012-10-23 15:51:50 -04:00
parent 97ed50f93b
commit 7acdd6f0bc
1 changed files with 35 additions and 15 deletions
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50
builtin/config.c
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@ -15,7 +15,6 @@ static int show_keys;
static int use_key_regexp;
static int do_all;
static int do_not_match;
static int seen;
static char delim = '=';
static char key_delim = ' ';
static char term = '\n';
@ -95,8 +94,16 @@ static int show_all_config(const char *key_, const char *value_, void *cb)
return 0;
}
static int show_config(const char *key_, const char *value_, void *cb)
struct strbuf_list {
struct strbuf *items;
int nr;
int alloc;
};
static int collect_config(const char *key_, const char *value_, void *cb)
{
struct strbuf_list *values = cb;
struct strbuf *buf;
char value[256];
const char *vptr = value;
int must_free_vptr = 0;
@ -111,11 +118,15 @@ static int show_config(const char *key_, const char *value_, void *cb)
(do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
return 0;
ALLOC_GROW(values->items, values->nr + 1, values->alloc);
buf = &values->items[values->nr++];
strbuf_init(buf, 0);
if (show_keys) {
printf("%s", key_);
strbuf_addstr(buf, key_);
must_print_delim = 1;
}
if (seen && !do_all)
if (values->nr > 1 && !do_all)
dup_error = 1;
if (types == TYPE_INT)
sprintf(value, "%d", git_config_int(key_, value_?value_:""));
@ -138,15 +149,15 @@ static int show_config(const char *key_, const char *value_, void *cb)
vptr = "";
must_print_delim = 0;
}
seen++;
if (dup_error) {
error("More than one value for the key %s: %s",
key_, vptr);
}
else {
if (must_print_delim)
printf("%c", key_delim);
printf("%s%c", vptr, term);
strbuf_addch(buf, key_delim);
strbuf_addstr(buf, vptr);
strbuf_addch(buf, term);
}
if (must_free_vptr)
/* If vptr must be freed, it's a pointer to a
@ -166,6 +177,8 @@ static int get_value(const char *key_, const char *regex_)
struct config_include_data inc = CONFIG_INCLUDE_INIT;
config_fn_t fn;
void *data;
struct strbuf_list values = {0};
int i;
local = given_config_file;
if (!local) {
@ -223,8 +236,8 @@ static int get_value(const char *key_, const char *regex_)
}
}
fn = show_config;
data = NULL;
fn = collect_config;
data = &values;
if (respect_includes) {
inc.fn = fn;
inc.data = data;
@ -241,19 +254,26 @@ static int get_value(const char *key_, const char *regex_)
if (do_all)
git_config_from_file(fn, local, data);
git_config_from_parameters(fn, data);
if (!do_all && !seen)
if (!do_all && !values.nr)
git_config_from_file(fn, local, data);
if (!do_all && !seen && global)
if (!do_all && !values.nr && global)
git_config_from_file(fn, global, data);
if (!do_all && !seen && xdg)
if (!do_all && !values.nr && xdg)
git_config_from_file(fn, xdg, data);
if (!do_all && !seen && system_wide)
if (!do_all && !values.nr && system_wide)
git_config_from_file(fn, system_wide, data);
if (do_all)
ret = !seen;
ret = !values.nr;
else
ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
ret = (values.nr == 1) ? 0 : values.nr > 1 ? 2 : 1;
for (i = 0; i < values.nr; i++) {
struct strbuf *buf = values.items + i;
fwrite(buf->buf, 1, buf->len, stdout);
strbuf_release(buf);
}
free(values.items);
free_strings:
free(repo_config);