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![Ævar Arnfjörð Bjarmason](/assets/img/avatar_default.png)
In C it isn't required to specify that all members of a struct are zero'd out to 0, NULL or '\0', just providing a "{ 0 }" will accomplish that. Let's also change code that provided N zero'd fields to just provide one, and change e.g. "{ NULL }" to "{ 0 }" for consistency. I.e. even if the first member is a pointer let's use "0" instead of "NULL". The point of using "0" consistently is to pick one, and to not have the reader wonder why we're not using the same pattern everywhere. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
#include "cache.h"
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#include "remote.h"
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#include "refspec.h"
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#include "checkout.h"
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#include "config.h"
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struct tracking_name_data {
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/* const */ char *src_ref;
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char *dst_ref;
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struct object_id *dst_oid;
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int num_matches;
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const char *default_remote;
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char *default_dst_ref;
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struct object_id *default_dst_oid;
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};
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#define TRACKING_NAME_DATA_INIT { 0 }
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static int check_tracking_name(struct remote *remote, void *cb_data)
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{
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struct tracking_name_data *cb = cb_data;
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struct refspec_item query;
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memset(&query, 0, sizeof(struct refspec_item));
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query.src = cb->src_ref;
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if (remote_find_tracking(remote, &query) ||
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get_oid(query.dst, cb->dst_oid)) {
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free(query.dst);
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return 0;
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}
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cb->num_matches++;
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if (cb->default_remote && !strcmp(remote->name, cb->default_remote)) {
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struct object_id *dst = xmalloc(sizeof(*cb->default_dst_oid));
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cb->default_dst_ref = xstrdup(query.dst);
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oidcpy(dst, cb->dst_oid);
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cb->default_dst_oid = dst;
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}
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if (cb->dst_ref) {
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free(query.dst);
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return 0;
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}
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cb->dst_ref = query.dst;
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return 0;
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}
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const char *unique_tracking_name(const char *name, struct object_id *oid,
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int *dwim_remotes_matched)
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{
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struct tracking_name_data cb_data = TRACKING_NAME_DATA_INIT;
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const char *default_remote = NULL;
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if (!git_config_get_string_tmp("checkout.defaultremote", &default_remote))
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cb_data.default_remote = default_remote;
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cb_data.src_ref = xstrfmt("refs/heads/%s", name);
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cb_data.dst_oid = oid;
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for_each_remote(check_tracking_name, &cb_data);
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if (dwim_remotes_matched)
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*dwim_remotes_matched = cb_data.num_matches;
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free(cb_data.src_ref);
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if (cb_data.num_matches == 1) {
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free(cb_data.default_dst_ref);
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free(cb_data.default_dst_oid);
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return cb_data.dst_ref;
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}
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free(cb_data.dst_ref);
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if (cb_data.default_dst_ref) {
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oidcpy(oid, cb_data.default_dst_oid);
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free(cb_data.default_dst_oid);
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return cb_data.default_dst_ref;
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}
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return NULL;
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}
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