Merge branch 'cn/fetch-prune' into maint

* cn/fetch-prune:
fetch: treat --tags like refs/tags/*:refs/tags/* when pruning
fetch: honor the user-provided refspecs when pruning refs
remote: separate out the remote_find_tracking logic into query_refspecs
t5510: add tests for fetch --prune
fetch: free all the additional refspecs

diff --git a/builtin/fetch.c b/builtin/fetch.c
index e422ced9299521bb2e7f3c5ff59a434c8403a4ea..9d481f8ca9d9470311b356e9bd5356fa362ffd6a 100644 (file)
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -540,10 +540,10 @@ static int fetch_refs(struct transport *transport, struct ref *ref_map)
        return ret;
 }
 
-static int prune_refs(struct transport *transport, struct ref *ref_map)
+static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map)
 {
        int result = 0;
-       struct ref *ref, *stale_refs = get_stale_heads(transport->remote, ref_map);
+       struct ref *ref, *stale_refs = get_stale_heads(refs, ref_count, ref_map);
        const char *dangling_msg = dry_run
                ? _("   (%s will become dangling)\n")
                : _("   (%s has become dangling)\n");
@@ -734,8 +734,31 @@ static int do_fetch(struct transport *transport,
                free_refs(ref_map);
                return 1;
        }
-       if (prune)
-               prune_refs(transport, ref_map);
+       if (prune) {
+               /* If --tags was specified, pretend the user gave us the canonical tags refspec */
+               if (tags == TAGS_SET) {
+                       const char *tags_str = "refs/tags/*:refs/tags/*";
+                       struct refspec *tags_refspec, *refspec;
+
+                       /* Copy the refspec and add the tags to it */
+                       refspec = xcalloc(ref_count + 1, sizeof(struct refspec));
+                       tags_refspec = parse_fetch_refspec(1, &tags_str);
+                       memcpy(refspec, refs, ref_count * sizeof(struct refspec));
+                       memcpy(&refspec[ref_count], tags_refspec, sizeof(struct refspec));
+                       ref_count++;
+
+                       prune_refs(refspec, ref_count, ref_map);
+
+                       ref_count--;
+                       /* The rest of the strings belong to fetch_one */
+                       free_refspec(1, tags_refspec);
+                       free(refspec);
+               } else if (ref_count) {
+                       prune_refs(refs, ref_count, ref_map);
+               } else {
+                       prune_refs(transport->remote->fetch, transport->remote->fetch_refspec_nr, ref_map);
+               }
+       }
        free_refs(ref_map);
 
        /* if neither --no-tags nor --tags was specified, do automated tag
@@ -918,7 +941,7 @@ static int fetch_one(struct remote *remote, int argc, const char **argv)
        atexit(unlock_pack);
        refspec = parse_fetch_refspec(ref_nr, refs);
        exit_code = do_fetch(transport, refspec, ref_nr);
-       free(refspec);
+       free_refspec(ref_nr, refspec);
        transport_disconnect(transport);
        transport = NULL;
        return exit_code;

diff --git a/builtin/remote.c b/builtin/remote.c
index b25dfb44227c42a5d8dadb72c04e5aa694d2ace2..e1285becffd768c88b4802425f0f5901cda83f06 100644 (file)
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -349,7 +349,8 @@ static int get_ref_states(const struct ref *remote_refs, struct ref_states *stat
                else
                        string_list_append(&states->tracked, abbrev_branch(ref->name));
        }
-       stale_refs = get_stale_heads(states->remote, fetch_map);
+       stale_refs = get_stale_heads(states->remote->fetch,
+                                    states->remote->fetch_refspec_nr, fetch_map);
        for (ref = stale_refs; ref; ref = ref->next) {
                struct string_list_item *item =
                        string_list_append(&states->stale, abbrev_branch(ref->name));

diff --git a/remote.c b/remote.c
index b8ecfa5d9558e3824872ad6778fc344681cc8d5c..6ececc4a7703f6d54caf919b1162ed454b45a47e 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -828,59 +828,56 @@ static int match_name_with_pattern(const char *key, const char *name,
        return ret;
 }
 
-char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
-                    const char *name)
+static int query_refspecs(struct refspec *refs, int ref_count, struct refspec *query)
 {
        int i;
-       char *ret = NULL;
-       for (i = 0; i < nr_refspec; i++) {
-               struct refspec *refspec = refspecs + i;
-               if (refspec->pattern) {
-                       if (match_name_with_pattern(refspec->src, name,
-                                                   refspec->dst, &ret))
-                               return ret;
-               } else if (!strcmp(refspec->src, name))
-                       return strdup(refspec->dst);
-       }
-       return NULL;
-}
+       int find_src = !query->src;
 
-int remote_find_tracking(struct remote *remote, struct refspec *refspec)
-{
-       int find_src = refspec->src == NULL;
-       char *needle, **result;
-       int i;
+       if (find_src && !query->dst)
+               return error("query_refspecs: need either src or dst");
 
-       if (find_src) {
-               if (!refspec->dst)
-                       return error("find_tracking: need either src or dst");
-               needle = refspec->dst;
-               result = &refspec->src;
-       } else {
-               needle = refspec->src;
-               result = &refspec->dst;
-       }
+       for (i = 0; i < ref_count; i++) {
+               struct refspec *refspec = &refs[i];
+               const char *key = find_src ? refspec->dst : refspec->src;
+               const char *value = find_src ? refspec->src : refspec->dst;
+               const char *needle = find_src ? query->dst : query->src;
+               char **result = find_src ? &query->src : &query->dst;
 
-       for (i = 0; i < remote->fetch_refspec_nr; i++) {
-               struct refspec *fetch = &remote->fetch[i];
-               const char *key = find_src ? fetch->dst : fetch->src;
-               const char *value = find_src ? fetch->src : fetch->dst;
-               if (!fetch->dst)
+               if (!refspec->dst)
                        continue;
-               if (fetch->pattern) {
+               if (refspec->pattern) {
                        if (match_name_with_pattern(key, needle, value, result)) {
-                               refspec->force = fetch->force;
+                               query->force = refspec->force;
                                return 0;
                        }
                } else if (!strcmp(needle, key)) {
                        *result = xstrdup(value);
-                       refspec->force = fetch->force;
+                       query->force = refspec->force;
                        return 0;
                }
        }
        return -1;
 }
 
+char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
+                    const char *name)
+{
+       struct refspec query;
+
+       memset(&query, 0, sizeof(struct refspec));
+       query.src = (char *)name;
+
+       if (query_refspecs(refspecs, nr_refspec, &query))
+               return NULL;
+
+       return query.dst;
+}
+
+int remote_find_tracking(struct remote *remote, struct refspec *refspec)
+{
+       return query_refspecs(remote->fetch, remote->fetch_refspec_nr, refspec);
+}
+
 static struct ref *alloc_ref_with_prefix(const char *prefix, size_t prefixlen,
                const char *name)
 {
@@ -1681,36 +1678,47 @@ struct ref *guess_remote_head(const struct ref *head,
 }
 
 struct stale_heads_info {
-       struct remote *remote;
        struct string_list *ref_names;
        struct ref **stale_refs_tail;
+       struct refspec *refs;
+       int ref_count;
 };
 
 static int get_stale_heads_cb(const char *refname,
        const unsigned char *sha1, int flags, void *cb_data)
 {
        struct stale_heads_info *info = cb_data;
-       struct refspec refspec;
-       memset(&refspec, 0, sizeof(refspec));
-       refspec.dst = (char *)refname;
-       if (!remote_find_tracking(info->remote, &refspec)) {
-               if (!((flags & REF_ISSYMREF) ||
-                   string_list_has_string(info->ref_names, refspec.src))) {
-                       struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail);
-                       hashcpy(ref->new_sha1, sha1);
-               }
+       struct refspec query;
+       memset(&query, 0, sizeof(struct refspec));
+       query.dst = (char *)refname;
+
+       if (query_refspecs(info->refs, info->ref_count, &query))
+               return 0; /* No matches */
+
+       /*
+        * If we did find a suitable refspec and it's not a symref and
+        * it's not in the list of refs that currently exist in that
+        * remote we consider it to be stale.
+        */
+       if (!((flags & REF_ISSYMREF) ||
+             string_list_has_string(info->ref_names, query.src))) {
+               struct ref *ref = make_linked_ref(refname, &info->stale_refs_tail);
+               hashcpy(ref->new_sha1, sha1);
        }
+
+       free(query.src);
        return 0;
 }
 
-struct ref *get_stale_heads(struct remote *remote, struct ref *fetch_map)
+struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fetch_map)
 {
        struct ref *ref, *stale_refs = NULL;
        struct string_list ref_names = STRING_LIST_INIT_NODUP;
        struct stale_heads_info info;
-       info.remote = remote;
        info.ref_names = &ref_names;
        info.stale_refs_tail = &stale_refs;
+       info.refs = refs;
+       info.ref_count = ref_count;
        for (ref = fetch_map; ref; ref = ref->next)
                string_list_append(&ref_names, ref->name);
        sort_string_list(&ref_names);

diff --git a/remote.h b/remote.h
index 9a30a9dba64825950f7a0448ad8b64581c0b8fae..f2541b5a29a552fb9fab736f5b47a545c2eee383 100644 (file)
--- a/remote.h
+++ b/remote.h
@@ -164,6 +164,6 @@ struct ref *guess_remote_head(const struct ref *head,
                              int all);
 
 /* Return refs which no longer exist on remote */
-struct ref *get_stale_heads(struct remote *remote, struct ref *fetch_map);
+struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fetch_map);
 
 #endif

diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index 7e433b179f9fcb0b3ccdd0ec83c6ec850735e391..e0af4c4e62c40a563f692361944cc58e2c8e38e2 100755 (executable)
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -76,6 +76,56 @@ test_expect_success "fetch test for-merge" '
        cut -f -2 .git/FETCH_HEAD >actual &&
        test_cmp expected actual'
 
+test_expect_success 'fetch --prune on its own works as expected' '
+       cd "$D" &&
+       git clone . prune &&
+       cd prune &&
+       git fetch origin refs/heads/master:refs/remotes/origin/extrabranch &&
+
+       git fetch --prune origin &&
+       test_must_fail git rev-parse origin/extrabranch
+'
+
+test_expect_success 'fetch --prune with a branch name keeps branches' '
+       cd "$D" &&
+       git clone . prune-branch &&
+       cd prune-branch &&
+       git fetch origin refs/heads/master:refs/remotes/origin/extrabranch &&
+
+       git fetch --prune origin master &&
+       git rev-parse origin/extrabranch
+'
+
+test_expect_success 'fetch --prune with a namespace keeps other namespaces' '
+       cd "$D" &&
+       git clone . prune-namespace &&
+       cd prune-namespace &&
+
+       git fetch --prune origin refs/heads/a/*:refs/remotes/origin/a/* &&
+       git rev-parse origin/master
+'
+
+test_expect_success 'fetch --prune --tags does not delete the remote-tracking branches' '
+       cd "$D" &&
+       git clone . prune-tags &&
+       cd prune-tags &&
+       git fetch origin refs/heads/master:refs/tags/sometag &&
+
+       git fetch --prune --tags origin &&
+       git rev-parse origin/master &&
+       test_must_fail git rev-parse somebranch
+'
+
+test_expect_success 'fetch --prune --tags with branch does not delete other remote-tracking branches' '
+       cd "$D" &&
+       git clone . prune-tags-branch &&
+       cd prune-tags-branch &&
+       git fetch origin refs/heads/master:refs/remotes/origin/extrabranch &&
+
+       git fetch --prune --tags origin master &&
+       git rev-parse origin/extrabranch
+'
+
 test_expect_success 'fetch tags when there is no tags' '
 
     cd "$D" &&