diff options
| -rw-r--r-- | submodule.c | 77 |
1 files changed, 72 insertions, 5 deletions
diff --git a/submodule.c b/submodule.c index b6dec70bd1..9431c42dfb 100644 --- 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 @@ -366,16 +371,72 @@ 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; 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"); @@ -398,7 +459,11 @@ 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, @@ -432,6 +497,8 @@ 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; |