Merge branch 'maint'
[gitweb.git] / submodule.c
index 8d9f1db94349f080b4d01bc6b86c9d762c615815..5294cef641ef74ec525d8d747c82faf0bef7352a 100644 (file)
@@ -9,11 +9,11 @@
 #include "refs.h"
 #include "string-list.h"
 
-struct string_list config_name_for_path;
-struct string_list config_fetch_recurse_submodules_for_name;
-struct string_list config_ignore_for_name;
+static struct string_list config_name_for_path;
+static struct string_list config_fetch_recurse_submodules_for_name;
+static struct string_list config_ignore_for_name;
 static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
-struct string_list changed_submodule_paths;
+static struct string_list changed_submodule_paths;
 
 static int add_submodule_odb(const char *path)
 {
@@ -71,7 +71,7 @@ int submodule_config(const char *var, const char *value, void *cb)
        if (!prefixcmp(var, "submodule."))
                return parse_submodule_config_option(var, value);
        else if (!strcmp(var, "fetch.recursesubmodules")) {
-               config_fetch_recurse_submodules = git_config_bool(var, value);
+               config_fetch_recurse_submodules = parse_fetch_recurse_submodules_arg(var, value);
                return 0;
        }
        return 0;
@@ -113,7 +113,7 @@ int parse_submodule_config_option(const char *var, const char *value)
                if (!config)
                        config = string_list_append(&config_fetch_recurse_submodules_for_name,
                                                    strbuf_detach(&submodname, NULL));
-               config->util = git_config_bool(var, value) ? (void *)1 : NULL;
+               config->util = (void *)(intptr_t)parse_fetch_recurse_submodules_arg(var, value);
                strbuf_release(&submodname);
        } else if ((len > 7) && !strcmp(var + len - 7, ".ignore")) {
                if (strcmp(value, "untracked") && strcmp(value, "dirty") &&
@@ -153,6 +153,60 @@ void handle_ignore_submodules_arg(struct diff_options *diffopt,
                die("bad --ignore-submodules argument: %s", arg);
 }
 
+static int prepare_submodule_summary(struct rev_info *rev, const char *path,
+               struct commit *left, struct commit *right,
+               int *fast_forward, int *fast_backward)
+{
+       struct commit_list *merge_bases, *list;
+
+       init_revisions(rev, NULL);
+       setup_revisions(0, NULL, rev, NULL);
+       rev->left_right = 1;
+       rev->first_parent_only = 1;
+       left->object.flags |= SYMMETRIC_LEFT;
+       add_pending_object(rev, &left->object, path);
+       add_pending_object(rev, &right->object, path);
+       merge_bases = get_merge_bases(left, right, 1);
+       if (merge_bases) {
+               if (merge_bases->item == left)
+                       *fast_forward = 1;
+               else if (merge_bases->item == right)
+                       *fast_backward = 1;
+       }
+       for (list = merge_bases; list; list = list->next) {
+               list->item->object.flags |= UNINTERESTING;
+               add_pending_object(rev, &list->item->object,
+                       sha1_to_hex(list->item->object.sha1));
+       }
+       return prepare_revision_walk(rev);
+}
+
+static void print_submodule_summary(struct rev_info *rev, FILE *f,
+               const char *del, const char *add, const char *reset)
+{
+       static const char format[] = "  %m %s";
+       struct strbuf sb = STRBUF_INIT;
+       struct commit *commit;
+
+       while ((commit = get_revision(rev))) {
+               struct pretty_print_context ctx = {0};
+               ctx.date_mode = rev->date_mode;
+               strbuf_setlen(&sb, 0);
+               if (commit->object.flags & SYMMETRIC_LEFT) {
+                       if (del)
+                               strbuf_addstr(&sb, del);
+               }
+               else if (add)
+                       strbuf_addstr(&sb, add);
+               format_commit_message(commit, format, &sb, &ctx);
+               if (reset)
+                       strbuf_addstr(&sb, reset);
+               strbuf_addch(&sb, '\n');
+               fprintf(f, "%s", sb.buf);
+       }
+       strbuf_release(&sb);
+}
+
 int parse_fetch_recurse_submodules_arg(const char *opt, const char *arg)
 {
        switch (git_config_maybe_bool(opt, arg)) {
@@ -173,11 +227,9 @@ void show_submodule_summary(FILE *f, const char *path,
                const char *del, const char *add, const char *reset)
 {
        struct rev_info rev;
-       struct commit *commit, *left = left, *right = right;
-       struct commit_list *merge_bases, *list;
+       struct commit *left = left, *right = right;
        const char *message = NULL;
        struct strbuf sb = STRBUF_INIT;
-       static const char *format = "  %m %s";
        int fast_forward = 0, fast_backward = 0;
 
        if (is_null_sha1(two))
@@ -190,29 +242,10 @@ void show_submodule_summary(FILE *f, const char *path,
                 !(right = lookup_commit_reference(two)))
                message = "(commits not present)";
 
-       if (!message) {
-               init_revisions(&rev, NULL);
-               setup_revisions(0, NULL, &rev, NULL);
-               rev.left_right = 1;
-               rev.first_parent_only = 1;
-               left->object.flags |= SYMMETRIC_LEFT;
-               add_pending_object(&rev, &left->object, path);
-               add_pending_object(&rev, &right->object, path);
-               merge_bases = get_merge_bases(left, right, 1);
-               if (merge_bases) {
-                       if (merge_bases->item == left)
-                               fast_forward = 1;
-                       else if (merge_bases->item == right)
-                               fast_backward = 1;
-               }
-               for (list = merge_bases; list; list = list->next) {
-                       list->item->object.flags |= UNINTERESTING;
-                       add_pending_object(&rev, &list->item->object,
-                               sha1_to_hex(list->item->object.sha1));
-               }
-               if (prepare_revision_walk(&rev))
-                       message = "(revision walker failed)";
-       }
+       if (!message &&
+           prepare_submodule_summary(&rev, path, left, right,
+                                       &fast_forward, &fast_backward))
+               message = "(revision walker failed)";
 
        if (dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
                fprintf(f, "Submodule %s contains untracked content\n", path);
@@ -236,25 +269,11 @@ void show_submodule_summary(FILE *f, const char *path,
        fwrite(sb.buf, sb.len, 1, f);
 
        if (!message) {
-               while ((commit = get_revision(&rev))) {
-                       struct pretty_print_context ctx = {0};
-                       ctx.date_mode = rev.date_mode;
-                       strbuf_setlen(&sb, 0);
-                       if (commit->object.flags & SYMMETRIC_LEFT) {
-                               if (del)
-                                       strbuf_addstr(&sb, del);
-                       }
-                       else if (add)
-                               strbuf_addstr(&sb, add);
-                       format_commit_message(commit, format, &sb, &ctx);
-                       if (reset)
-                               strbuf_addstr(&sb, reset);
-                       strbuf_addch(&sb, '\n');
-                       fprintf(f, "%s", sb.buf);
-               }
+               print_submodule_summary(&rev, f, del, add, reset);
                clear_commit_marks(left, ~0);
                clear_commit_marks(right, ~0);
        }
+
        strbuf_release(&sb);
 }
 
@@ -263,6 +282,33 @@ void set_config_fetch_recurse_submodules(int value)
        config_fetch_recurse_submodules = value;
 }
 
+static int is_submodule_commit_present(const char *path, unsigned char sha1[20])
+{
+       int is_present = 0;
+       if (!add_submodule_odb(path) && lookup_commit_reference(sha1)) {
+               /* Even if the submodule is checked out and the commit is
+                * present, make sure it is reachable from a ref. */
+               struct child_process cp;
+               const char *argv[] = {"rev-list", "-n", "1", NULL, "--not", "--all", NULL};
+               struct strbuf buf = STRBUF_INIT;
+
+               argv[3] = sha1_to_hex(sha1);
+               memset(&cp, 0, sizeof(cp));
+               cp.argv = argv;
+               cp.env = local_repo_env;
+               cp.git_cmd = 1;
+               cp.no_stdin = 1;
+               cp.out = -1;
+               cp.dir = path;
+               if (!run_command(&cp) && !strbuf_read(&buf, cp.out, 1024))
+                       is_present = 1;
+
+               close(cp.out);
+               strbuf_release(&buf);
+       }
+       return is_present;
+}
+
 static void submodule_collect_changed_cb(struct diff_queue_struct *q,
                                         struct diff_options *options,
                                         void *data)
@@ -280,7 +326,7 @@ static void submodule_collect_changed_cb(struct diff_queue_struct *q,
                         * being moved around. */
                        struct string_list_item *path;
                        path = unsorted_string_list_lookup(&changed_submodule_paths, p->two->path);
-                       if (!path)
+                       if (!path && !is_submodule_commit_present(p->two->path, p->two->sha1))
                                string_list_append(&changed_submodule_paths, xstrdup(p->two->path));
                } else {
                        /* Submodule is new or was moved here */
@@ -380,8 +426,13 @@ int fetch_populated_submodules(int num_options, const char **options,
                        struct string_list_item *fetch_recurse_submodules_option;
                        fetch_recurse_submodules_option = unsorted_string_list_lookup(&config_fetch_recurse_submodules_for_name, name);
                        if (fetch_recurse_submodules_option) {
-                               if (!fetch_recurse_submodules_option->util)
+                               if ((intptr_t)fetch_recurse_submodules_option->util == RECURSE_SUBMODULES_OFF)
                                        continue;
+                               if ((intptr_t)fetch_recurse_submodules_option->util == RECURSE_SUBMODULES_ON_DEMAND) {
+                                       if (!unsorted_string_list_lookup(&changed_submodule_paths, ce->name))
+                                               continue;
+                                       default_argv = "on-demand";
+                               }
                        } else {
                                if (config_fetch_recurse_submodules == RECURSE_SUBMODULES_OFF)
                                        continue;