push: teach --recurse-submodules the on-demand option
[gitweb.git] / submodule.c
index 09a41b59befca75feb6fec95d6c98bb51e10b987..784b58039dd078fc1e0c4554820cd0e99c8e41d2 100644 (file)
@@ -357,51 +357,38 @@ static void collect_submodules_from_diff(struct diff_queue_struct *q,
                                         void *data)
 {
        int i;
-       int *needs_pushing = data;
+       struct string_list *needs_pushing = data;
 
        for (i = 0; i < q->nr; i++) {
                struct diff_filepair *p = q->queue[i];
                if (!S_ISGITLINK(p->two->mode))
                        continue;
-               if (submodule_needs_pushing(p->two->path, p->two->sha1)) {
-                       *needs_pushing = 1;
-                       break;
-               }
+               if (submodule_needs_pushing(p->two->path, p->two->sha1))
+                       string_list_insert(needs_pushing, p->two->path);
        }
 }
 
-
-static void commit_need_pushing(struct commit *commit, struct commit_list *parent, int *needs_pushing)
+static void find_unpushed_submodule_commits(struct commit *commit,
+               struct string_list *needs_pushing)
 {
-       const unsigned char (*parents)[20];
-       unsigned int i, n;
        struct rev_info rev;
 
-       n = commit_list_count(parent);
-       parents = xmalloc(n * sizeof(*parents));
-
-       for (i = 0; i < n; i++) {
-               hashcpy((unsigned char *)(parents + i), parent->item->object.sha1);
-               parent = parent->next;
-       }
-
        init_revisions(&rev, NULL);
        rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
        rev.diffopt.format_callback = collect_submodules_from_diff;
        rev.diffopt.format_callback_data = needs_pushing;
-       diff_tree_combined(commit->object.sha1, parents, n, 1, &rev);
-
-       free((void *)parents);
+       diff_tree_combined_merge(commit, 1, &rev);
 }
 
-int check_submodule_needs_pushing(unsigned char new_sha1[20], const char *remotes_name)
+int find_unpushed_submodules(unsigned char new_sha1[20],
+               const char *remotes_name, struct string_list *needs_pushing)
 {
        struct rev_info rev;
        struct commit *commit;
        const char *argv[] = {NULL, NULL, "--not", "NULL", NULL};
        int argc = ARRAY_SIZE(argv) - 1;
        char *sha1_copy;
-       int needs_pushing = 0;
+
        struct strbuf remotes_arg = STRBUF_INIT;
 
        strbuf_addf(&remotes_arg, "--remotes=%s", remotes_name);
@@ -413,13 +400,62 @@ int check_submodule_needs_pushing(unsigned char new_sha1[20], const char *remote
        if (prepare_revision_walk(&rev))
                die("revision walk setup failed");
 
-       while ((commit = get_revision(&rev)) && !needs_pushing)
-               commit_need_pushing(commit, commit->parents, &needs_pushing);
+       while ((commit = get_revision(&rev)) != NULL)
+               find_unpushed_submodule_commits(commit, needs_pushing);
 
+       reset_revision_walk();
        free(sha1_copy);
        strbuf_release(&remotes_arg);
 
-       return needs_pushing;
+       return needs_pushing->nr;
+}
+
+static int push_submodule(const char *path)
+{
+       if (add_submodule_odb(path))
+               return 1;
+
+       if (for_each_remote_ref_submodule(path, has_remote, NULL) > 0) {
+               struct child_process cp;
+               const char *argv[] = {"push", NULL};
+
+               memset(&cp, 0, sizeof(cp));
+               cp.argv = argv;
+               cp.env = local_repo_env;
+               cp.git_cmd = 1;
+               cp.no_stdin = 1;
+               cp.dir = path;
+               if (run_command(&cp))
+                       return 0;
+               close(cp.out);
+       }
+
+       return 1;
+}
+
+int push_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_name)
+{
+       int i, ret = 1;
+       struct string_list needs_pushing;
+
+       memset(&needs_pushing, 0, sizeof(struct string_list));
+       needs_pushing.strdup_strings = 1;
+
+       if (!find_unpushed_submodules(new_sha1, remotes_name, &needs_pushing))
+               return 1;
+
+       for (i = 0; i < needs_pushing.nr; i++) {
+               const char *path = needs_pushing.items[i].string;
+               fprintf(stderr, "Pushing submodule '%s'\n", path);
+               if (!push_submodule(path)) {
+                       fprintf(stderr, "Unable to push submodule '%s'\n", path);
+                       ret = 0;
+               }
+       }
+
+       string_list_clear(&needs_pushing, 0);
+
+       return ret;
 }
 
 static int is_submodule_commit_present(const char *path, unsigned char sha1[20])
@@ -689,7 +725,7 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
        cp.out = -1;
        cp.dir = path;
        if (start_command(&cp))
-               die("Could not run git status --porcelain");
+               die("Could not run 'git status --porcelain' in submodule %s", path);
 
        len = strbuf_read(&buf, cp.out, 1024);
        line = buf.buf;
@@ -714,7 +750,7 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
        close(cp.out);
 
        if (finish_command(&cp))
-               die("git status --porcelain failed");
+               die("'git status --porcelain' failed in submodule %s", path);
 
        strbuf_release(&buf);
        return dirty_submodule;
@@ -753,6 +789,7 @@ static int find_first_merges(struct object_array *result, const char *path,
                if (in_merge_bases(b, &commit, 1))
                        add_object_array(o, NULL, &merges);
        }
+       reset_revision_walk();
 
        /* Now we've got all merges that contain a and b. Prune all
         * merges that contain another found merge and save them in
@@ -794,7 +831,7 @@ static void print_commit(struct commit *commit)
 
 int merge_submodule(unsigned char result[20], const char *path,
                    const unsigned char base[20], const unsigned char a[20],
-                   const unsigned char b[20])
+                   const unsigned char b[20], int search)
 {
        struct commit *commit_base, *commit_a, *commit_b;
        int parent_count;
@@ -849,6 +886,10 @@ int merge_submodule(unsigned char result[20], const char *path,
         * user needs to confirm the resolution.
         */
 
+       /* Skip the search if makes no sense to the calling context.  */
+       if (!search)
+               return 0;
+
        /* find commit which merges them */
        parent_count = find_first_merges(&merges, path, commit_a, commit_b);
        switch (parent_count) {