Almost ready for 1.7.7.1

diff --git a/submodule.c b/submodule.c
index 45f508c6fd5b64d423d1e3722c3def0cfb94fa92..08756387e207700861cfa6dac039334ecd53c7a1 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -8,12 +8,17 @@
 #include "diffcore.h"
 #include "refs.h"
 #include "string-list.h"
+#include "sha1-array.h"
 
 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;
 static struct string_list changed_submodule_paths;
+static int initialized_fetch_ref_tips;
+static struct sha1_array ref_tips_before_fetch;
+static struct sha1_array ref_tips_after_fetch;
+
 /*
  * The following flag is set if the .gitmodules file is unmerged. We then
  * disable recursion for all submodules where .git/config doesn't have a
@@ -32,7 +37,7 @@ static int add_submodule_odb(const char *path)
        const char *git_dir;
 
        strbuf_addf(&objects_directory, "%s/.git", path);
-       git_dir = read_gitfile_gently(objects_directory.buf);
+       git_dir = read_gitfile(objects_directory.buf);
        if (git_dir) {
                strbuf_reset(&objects_directory);
                strbuf_addstr(&objects_directory, git_dir);
@@ -474,16 +479,76 @@ static void submodule_collect_changed_cb(struct diff_queue_struct *q,
        }
 }
 
+static int add_sha1_to_array(const char *ref, const unsigned char *sha1,
+                            int flags, void *data)
+{
+       sha1_array_append(data, sha1);
+       return 0;
+}
+
 void check_for_new_submodule_commits(unsigned char new_sha1[20])
+{
+       if (!initialized_fetch_ref_tips) {
+               for_each_ref(add_sha1_to_array, &ref_tips_before_fetch);
+               initialized_fetch_ref_tips = 1;
+       }
+
+       sha1_array_append(&ref_tips_after_fetch, new_sha1);
+}
+
+struct argv_array {
+       const char **argv;
+       unsigned int argc;
+       unsigned int alloc;
+};
+
+static void init_argv(struct argv_array *array)
+{
+       array->argv = NULL;
+       array->argc = 0;
+       array->alloc = 0;
+}
+
+static void push_argv(struct argv_array *array, const char *value)
+{
+       ALLOC_GROW(array->argv, array->argc + 2, array->alloc);
+       array->argv[array->argc++] = xstrdup(value);
+       array->argv[array->argc] = NULL;
+}
+
+static void clear_argv(struct argv_array *array)
+{
+       int i;
+       for (i = 0; i < array->argc; i++)
+               free((char **)array->argv[i]);
+       free(array->argv);
+       init_argv(array);
+}
+
+static void add_sha1_to_argv(const unsigned char sha1[20], void *data)
+{
+       push_argv(data, sha1_to_hex(sha1));
+}
+
+static void calculate_changed_submodule_paths(void)
 {
        struct rev_info rev;
        struct commit *commit;
-       const char *argv[] = {NULL, NULL, "--not", "--all", NULL};
-       int argc = ARRAY_SIZE(argv) - 1;
+       struct argv_array argv;
+
+       /* No need to check if there are no submodules configured */
+       if (!config_name_for_path.nr)
+               return;
 
        init_revisions(&rev, NULL);
-       argv[1] = xstrdup(sha1_to_hex(new_sha1));
-       setup_revisions(argc, argv, &rev, NULL);
+       init_argv(&argv);
+       push_argv(&argv, "--"); /* argv[0] program name */
+       sha1_array_for_each_unique(&ref_tips_after_fetch,
+                                  add_sha1_to_argv, &argv);
+       push_argv(&argv, "--not");
+       sha1_array_for_each_unique(&ref_tips_before_fetch,
+                                  add_sha1_to_argv, &argv);
+       setup_revisions(argv.argc, argv.argv, &rev, NULL);
        if (prepare_revision_walk(&rev))
                die("revision walk setup failed");
 
@@ -507,7 +572,11 @@ void check_for_new_submodule_commits(unsigned char new_sha1[20])
                        parent = parent->next;
                }
        }
-       free((char *)argv[1]);
+
+       clear_argv(&argv);
+       sha1_array_clear(&ref_tips_before_fetch);
+       sha1_array_clear(&ref_tips_after_fetch);
+       initialized_fetch_ref_tips = 0;
 }
 
 int fetch_populated_submodules(int num_options, const char **options,
@@ -541,6 +610,8 @@ int fetch_populated_submodules(int num_options, const char **options,
        cp.git_cmd = 1;
        cp.no_stdin = 1;
 
+       calculate_changed_submodule_paths();
+
        for (i = 0; i < active_nr; i++) {
                struct strbuf submodule_path = STRBUF_INIT;
                struct strbuf submodule_git_dir = STRBUF_INIT;
@@ -587,7 +658,7 @@ int fetch_populated_submodules(int num_options, const char **options,
                strbuf_addf(&submodule_path, "%s/%s", work_tree, ce->name);
                strbuf_addf(&submodule_git_dir, "%s/.git", submodule_path.buf);
                strbuf_addf(&submodule_prefix, "%s%s/", prefix, ce->name);
-               git_dir = read_gitfile_gently(submodule_git_dir.buf);
+               git_dir = read_gitfile(submodule_git_dir.buf);
                if (!git_dir)
                        git_dir = submodule_git_dir.buf;
                if (is_directory(git_dir)) {
@@ -625,7 +696,7 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
        const char *git_dir;
 
        strbuf_addf(&buf, "%s/.git", path);
-       git_dir = read_gitfile_gently(buf.buf);
+       git_dir = read_gitfile(buf.buf);
        if (!git_dir)
                git_dir = buf.buf;
        if (!is_directory(git_dir)) {