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branch.c: replace git_config() with `git_config_get_string()

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Use `git_config_get_string()` instead of `git_config()` to take advantage of
the config-set API which provides a cleaner control flow. While we are at
it, return -1 if we find no value for the queried variable. Original code
returned 0 for all cases, which was checked by `add_branch_desc()` in
fmt-merge-msg.c resulting in addition of a spurious newline to the `out`
strbuf. Now, the newline addition is skipped as -1 is returned to the caller
if no value is found.

Signed-off-by: Tanay Abhra <tanayabh@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Tanay Abhra 2014-08-07 23:26:42 +05:30 committed by Junio C Hamano
parent 111791559e
commit 540b0f4977
1 changed files with 7 additions and 20 deletions
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27
branch.c
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@ -140,30 +140,17 @@ static int setup_tracking(const char *new_ref, const char *orig_ref,
return 0;
}
struct branch_desc_cb {
const char *config_name;
const char *value;
};
static int read_branch_desc_cb(const char *var, const char *value, void *cb)
{
struct branch_desc_cb *desc = cb;
if (strcmp(desc->config_name, var))
return 0;
free((char *)desc->value);
return git_config_string(&desc->value, var, value);
}
int read_branch_desc(struct strbuf *buf, const char *branch_name)
{
struct branch_desc_cb cb;
char *v = NULL;
struct strbuf name = STRBUF_INIT;
strbuf_addf(&name, "branch.%s.description", branch_name);
cb.config_name = name.buf;
cb.value = NULL;
git_config(read_branch_desc_cb, &cb);
if (cb.value)
strbuf_addstr(buf, cb.value);
if (git_config_get_string(name.buf, &v)) {
strbuf_release(&name);
return -1;
}
strbuf_addstr(buf, v);
free(v);
strbuf_release(&name);
return 0;
}