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cc395d6b47
The function `unique_tracking_name()` returns an allocated string, but does not clearly indicate this because its return type is `const char *` instead of `char *`. This has led to various callsites where we never free its returned memory at all, which causes memory leaks. Plug those leaks and mark now-passing tests as leak free. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
#include "git-compat-util.h"
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#include "object-name.h"
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#include "remote.h"
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#include "refspec.h"
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#include "repository.h"
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#include "checkout.h"
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#include "config.h"
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#include "strbuf.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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repo_get_oid(the_repository, 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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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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