зеркало из https://github.com/microsoft/git.git
fetch_populated_submodules: use new parallel job processing
In a later patch we enable parallel processing of submodules, this only adds the possibility for it. So this change should not change any user facing behavior. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller
Junio C Hamano
Родитель
c553c72eed
Коммит
fe85ee6e23
142
submodule.c
142
submodule.c
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@ -12,6 +12,7 @@
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#include "sha1-array.h"
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#include "argv-array.h"
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#include "blob.h"
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#include "thread-utils.h"
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static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
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static struct string_list changed_submodule_paths;
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@ -610,37 +611,28 @@ static void calculate_changed_submodule_paths(void)
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initialized_fetch_ref_tips = 0;
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}
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int fetch_populated_submodules(const struct argv_array *options,
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const char *prefix, int command_line_option,
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int quiet)
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struct submodule_parallel_fetch {
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int count;
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struct argv_array args;
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const char *work_tree;
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const char *prefix;
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int command_line_option;
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int quiet;
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int result;
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};
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#define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0}
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static int get_next_submodule(struct child_process *cp,
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struct strbuf *err, void *data, void **task_cb)
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{
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int i, result = 0;
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struct child_process cp = CHILD_PROCESS_INIT;
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struct argv_array argv = ARGV_ARRAY_INIT;
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const char *work_tree = get_git_work_tree();
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if (!work_tree)
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goto out;
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int ret = 0;
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struct submodule_parallel_fetch *spf = data;
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if (read_cache() < 0)
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die("index file corrupt");
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argv_array_push(&argv, "fetch");
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for (i = 0; i < options->argc; i++)
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argv_array_push(&argv, options->argv[i]);
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argv_array_push(&argv, "--recurse-submodules-default");
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/* default value, "--submodule-prefix" and its value are added later */
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cp.env = local_repo_env;
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cp.git_cmd = 1;
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cp.no_stdin = 1;
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calculate_changed_submodule_paths();
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for (i = 0; i < active_nr; i++) {
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for (; spf->count < active_nr; spf->count++) {
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struct strbuf submodule_path = STRBUF_INIT;
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struct strbuf submodule_git_dir = STRBUF_INIT;
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struct strbuf submodule_prefix = STRBUF_INIT;
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const struct cache_entry *ce = active_cache[i];
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const struct cache_entry *ce = active_cache[spf->count];
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const char *git_dir, *default_argv;
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const struct submodule *submodule;
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@ -652,7 +644,7 @@ int fetch_populated_submodules(const struct argv_array *options,
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submodule = submodule_from_name(null_sha1, ce->name);
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default_argv = "yes";
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if (command_line_option == RECURSE_SUBMODULES_DEFAULT) {
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if (spf->command_line_option == RECURSE_SUBMODULES_DEFAULT) {
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if (submodule &&
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submodule->fetch_recurse !=
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RECURSE_SUBMODULES_NONE) {
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@ -675,40 +667,102 @@ int fetch_populated_submodules(const struct argv_array *options,
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default_argv = "on-demand";
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}
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}
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} else if (command_line_option == RECURSE_SUBMODULES_ON_DEMAND) {
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} else if (spf->command_line_option == RECURSE_SUBMODULES_ON_DEMAND) {
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if (!unsorted_string_list_lookup(&changed_submodule_paths, ce->name))
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continue;
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default_argv = "on-demand";
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}
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strbuf_addf(&submodule_path, "%s/%s", work_tree, ce->name);
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strbuf_addf(&submodule_path, "%s/%s", spf->work_tree, ce->name);
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strbuf_addf(&submodule_git_dir, "%s/.git", submodule_path.buf);
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strbuf_addf(&submodule_prefix, "%s%s/", prefix, ce->name);
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strbuf_addf(&submodule_prefix, "%s%s/", spf->prefix, ce->name);
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git_dir = read_gitfile(submodule_git_dir.buf);
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if (!git_dir)
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git_dir = submodule_git_dir.buf;
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if (is_directory(git_dir)) {
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if (!quiet)
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fprintf(stderr, "Fetching submodule %s%s\n", prefix, ce->name);
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cp.dir = submodule_path.buf;
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argv_array_push(&argv, default_argv);
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argv_array_push(&argv, "--submodule-prefix");
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argv_array_push(&argv, submodule_prefix.buf);
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cp.argv = argv.argv;
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if (run_command(&cp))
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result = 1;
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argv_array_pop(&argv);
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argv_array_pop(&argv);
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argv_array_pop(&argv);
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child_process_init(cp);
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cp->dir = strbuf_detach(&submodule_path, NULL);
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cp->env = local_repo_env;
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cp->git_cmd = 1;
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if (!spf->quiet)
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strbuf_addf(err, "Fetching submodule %s%s\n",
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spf->prefix, ce->name);
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argv_array_init(&cp->args);
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argv_array_pushv(&cp->args, spf->args.argv);
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argv_array_push(&cp->args, default_argv);
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argv_array_push(&cp->args, "--submodule-prefix");
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argv_array_push(&cp->args, submodule_prefix.buf);
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ret = 1;
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}
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strbuf_release(&submodule_path);
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strbuf_release(&submodule_git_dir);
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strbuf_release(&submodule_prefix);
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if (ret) {
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spf->count++;
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return 1;
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}
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argv_array_clear(&argv);
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}
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return 0;
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}
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static int fetch_start_failure(struct child_process *cp,
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struct strbuf *err,
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void *cb, void *task_cb)
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{
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struct submodule_parallel_fetch *spf = cb;
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spf->result = 1;
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return 0;
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}
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static int fetch_finish(int retvalue, struct child_process *cp,
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struct strbuf *err, void *cb, void *task_cb)
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{
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struct submodule_parallel_fetch *spf = cb;
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if (retvalue)
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spf->result = 1;
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return 0;
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}
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int fetch_populated_submodules(const struct argv_array *options,
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const char *prefix, int command_line_option,
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int quiet)
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{
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int i;
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int max_parallel_jobs = 1;
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struct submodule_parallel_fetch spf = SPF_INIT;
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spf.work_tree = get_git_work_tree();
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spf.command_line_option = command_line_option;
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spf.quiet = quiet;
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spf.prefix = prefix;
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if (!spf.work_tree)
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goto out;
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if (read_cache() < 0)
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die("index file corrupt");
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argv_array_push(&spf.args, "fetch");
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for (i = 0; i < options->argc; i++)
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argv_array_push(&spf.args, options->argv[i]);
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argv_array_push(&spf.args, "--recurse-submodules-default");
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/* default value, "--submodule-prefix" and its value are added later */
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calculate_changed_submodule_paths();
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run_processes_parallel(max_parallel_jobs,
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get_next_submodule,
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fetch_start_failure,
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fetch_finish,
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&spf);
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argv_array_clear(&spf.args);
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out:
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string_list_clear(&changed_submodule_paths, 1);
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return result;
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return spf.result;
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}
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unsigned is_submodule_modified(const char *path, int ignore_untracked)
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