Merge branch 'sb/submodule-path-misc-bugs' into sb/submodule-init
authorJunio C Hamano <gitster@pobox.com>
Thu, 14 Apr 2016 19:47:44 +0000 (12:47 -0700)
committerJunio C Hamano <gitster@pobox.com>
Thu, 14 Apr 2016 19:47:45 +0000 (12:47 -0700)
"git submodule" reports the paths of submodules the command
recurses into, but this was incorrect when the command was not run
from the root level of the superproject.

Any further comments? Otherwise will merge to 'next'.

* sb/submodule-path-misc-bugs: (600 commits)
t7407: make expectation as clear as possible
submodule update: test recursive path reporting from subdirectory
submodule update: align reporting path for custom command execution
submodule status: correct path handling in recursive submodules
submodule update --init: correct path handling in recursive submodules
submodule foreach: correct path display in recursive submodules
Git 2.8
Documentation: fix git-p4 AsciiDoc formatting
mingw: skip some tests in t9115 due to file name issues
t1300: fix the new --show-origin tests on Windows
t1300-repo-config: make it resilient to being run via 'sh -x'
config --show-origin: report paths with forward slashes
submodule: fix regression for deinit without submodules
l10n: pt_PT: Update and add new translations
l10n: ca.po: update translation
Git 2.8-rc4
Documentation: fix broken linkgit to git-config
Documentation: use ASCII quotation marks in git-p4
Revert "config.mak.uname: use clang for Mac OS X 10.6"
git-compat-util: st_add4: work around gcc 4.2.x compiler crash
...

18 files changed:
Documentation/config.txt
Documentation/git-clone.txt
Documentation/git-submodule.txt
builtin/clone.c
builtin/fetch.c
builtin/submodule--helper.c
git-submodule.sh
run-command.c
run-command.h
strbuf.c
strbuf.h
submodule-config.c
submodule-config.h
submodule.c
submodule.h
t/t5526-fetch-submodules.sh
t/t7400-submodule-basic.sh
t/t7406-submodule-update.sh
index 2cd6bdd7d2bc2816c1a9aed1c6a26bbd3285777c..59d7046f8ec25d3b158cd8c1ffd0ab1d2fca2f24 100644 (file)
@@ -2729,6 +2729,12 @@ submodule.<name>.ignore::
        "--ignore-submodules" option. The 'git submodule' commands are not
        affected by this setting.
 
+submodule.fetchJobs::
+       Specifies how many submodules are fetched/cloned at the same time.
+       A positive integer allows up to that number of submodules fetched
+       in parallel. A value of 0 will give some reasonable default.
+       If unset, it defaults to 1.
+
 tag.sort::
        This variable controls the sort ordering of tags when displayed by
        linkgit:git-tag[1]. Without the "--sort=<value>" option provided, the
index b7c467a001ad47de0bebd8c985df769fe4e63adc..45d74be29705bae9ecd3028f4dff5755638741f7 100644 (file)
@@ -14,7 +14,7 @@ SYNOPSIS
          [-o <name>] [-b <name>] [-u <upload-pack>] [--reference <repository>]
          [--dissociate] [--separate-git-dir <git dir>]
          [--depth <depth>] [--[no-]single-branch]
-         [--recursive | --recurse-submodules] [--] <repository>
+         [--recursive | --recurse-submodules] [--jobs <n>] [--] <repository>
          [<directory>]
 
 DESCRIPTION
@@ -219,6 +219,10 @@ objects from the source repository into a pack in the cloned repository.
        The result is Git repository can be separated from working
        tree.
 
+-j <n>::
+--jobs <n>::
+       The number of submodules fetched at the same time.
+       Defaults to the `submodule.fetchJobs` option.
 
 <repository>::
        The (possibly remote) repository to clone from.  See the
index 1572f058f59ad1f75c4b5ed6e34fae9110414bad..13adebf7b75f2ab122c4d23708493ef098d3548d 100644 (file)
@@ -16,7 +16,7 @@ SYNOPSIS
 'git submodule' [--quiet] deinit [-f|--force] [--] <path>...
 'git submodule' [--quiet] update [--init] [--remote] [-N|--no-fetch]
              [-f|--force] [--rebase|--merge] [--reference <repository>]
-             [--depth <depth>] [--recursive] [--] [<path>...]
+             [--depth <depth>] [--recursive] [--jobs <n>] [--] [<path>...]
 'git submodule' [--quiet] summary [--cached|--files] [(-n|--summary-limit) <n>]
              [commit] [--] [<path>...]
 'git submodule' [--quiet] foreach [--recursive] <command>
@@ -377,6 +377,11 @@ for linkgit:git-clone[1]'s `--reference` and `--shared` options carefully.
        clone with a history truncated to the specified number of revisions.
        See linkgit:git-clone[1]
 
+-j <n>::
+--jobs <n>::
+       This option is only valid for the update command.
+       Clone new submodules in parallel with as many jobs.
+       Defaults to the `submodule.fetchJobs` option.
 
 <path>...::
        Paths to submodule(s). When specified this will restrict the command
index 661639255c564acf3f811e20a0ca3141805cde5d..6576ecf34309db4135c7a41ad6d0ef70e4a21f24 100644 (file)
@@ -51,6 +51,7 @@ static enum transport_family family;
 static struct string_list option_config;
 static struct string_list option_reference;
 static int option_dissociate;
+static int max_jobs = -1;
 
 static struct option builtin_clone_options[] = {
        OPT__VERBOSITY(&option_verbosity),
@@ -73,6 +74,8 @@ static struct option builtin_clone_options[] = {
                    N_("initialize submodules in the clone")),
        OPT_BOOL(0, "recurse-submodules", &option_recursive,
                    N_("initialize submodules in the clone")),
+       OPT_INTEGER('j', "jobs", &max_jobs,
+                   N_("number of submodules cloned in parallel")),
        OPT_STRING(0, "template", &option_template, N_("template-directory"),
                   N_("directory from which templates will be used")),
        OPT_STRING_LIST(0, "reference", &option_reference, N_("repo"),
@@ -100,10 +103,6 @@ static struct option builtin_clone_options[] = {
        OPT_END()
 };
 
-static const char *argv_submodule[] = {
-       "submodule", "update", "--init", "--recursive", NULL
-};
-
 static const char *get_repo_path_1(struct strbuf *path, int *is_bundle)
 {
        static char *suffix[] = { "/.git", "", ".git/.git", ".git" };
@@ -732,8 +731,16 @@ static int checkout(void)
        err |= run_hook_le(NULL, "post-checkout", sha1_to_hex(null_sha1),
                           sha1_to_hex(sha1), "1", NULL);
 
-       if (!err && option_recursive)
-               err = run_command_v_opt(argv_submodule, RUN_GIT_CMD);
+       if (!err && option_recursive) {
+               struct argv_array args = ARGV_ARRAY_INIT;
+               argv_array_pushl(&args, "submodule", "update", "--init", "--recursive", NULL);
+
+               if (max_jobs != -1)
+                       argv_array_pushf(&args, "--jobs=%d", max_jobs);
+
+               err = run_command_v_opt(args.argv, RUN_GIT_CMD);
+               argv_array_clear(&args);
+       }
 
        return err;
 }
index e4639d8eb1d5fda586520f10271c05a0897f2ea5..f8455bde7a84e110da182d56f62ac3f89026f55c 100644 (file)
@@ -37,7 +37,7 @@ static int prune = -1; /* unspecified */
 static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity;
 static int progress = -1, recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
 static int tags = TAGS_DEFAULT, unshallow, update_shallow;
-static int max_children = 1;
+static int max_children = -1;
 static enum transport_family family;
 static const char *depth;
 static const char *upload_pack;
index 5295b727d4609fa33a08c31b2d051ce3f98244fb..864dd187866b407863877e307bd36837c23bd0bf 100644 (file)
@@ -147,11 +147,11 @@ static int clone_submodule(const char *path, const char *gitdir, const char *url
 
 static int module_clone(int argc, const char **argv, const char *prefix)
 {
-       const char *path = NULL, *name = NULL, *url = NULL;
+       const char *name = NULL, *url = NULL;
        const char *reference = NULL, *depth = NULL;
        int quiet = 0;
        FILE *submodule_dot_git;
-       char *sm_gitdir, *cwd, *p;
+       char *p, *path = NULL, *sm_gitdir;
        struct strbuf rel_path = STRBUF_INIT;
        struct strbuf sb = STRBUF_INIT;
 
@@ -188,8 +188,18 @@ static int module_clone(int argc, const char **argv, const char *prefix)
        argc = parse_options(argc, argv, prefix, module_clone_options,
                             git_submodule_helper_usage, 0);
 
+       if (!path || !*path)
+               die(_("submodule--helper: unspecified or empty --path"));
+
        strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
-       sm_gitdir = strbuf_detach(&sb, NULL);
+       sm_gitdir = xstrdup(absolute_path(sb.buf));
+       strbuf_reset(&sb);
+
+       if (!is_absolute_path(path)) {
+               strbuf_addf(&sb, "%s/%s", get_git_work_tree(), path);
+               path = strbuf_detach(&sb, NULL);
+       } else
+               path = xstrdup(path);
 
        if (!file_exists(sm_gitdir)) {
                if (safe_create_leading_directories_const(sm_gitdir) < 0)
@@ -206,49 +216,285 @@ static int module_clone(int argc, const char **argv, const char *prefix)
        }
 
        /* Write a .git file in the submodule to redirect to the superproject. */
-       if (safe_create_leading_directories_const(path) < 0)
-               die(_("could not create directory '%s'"), path);
-
-       if (path && *path)
-               strbuf_addf(&sb, "%s/.git", path);
-       else
-               strbuf_addstr(&sb, ".git");
-
+       strbuf_addf(&sb, "%s/.git", path);
        if (safe_create_leading_directories_const(sb.buf) < 0)
                die(_("could not create leading directories of '%s'"), sb.buf);
        submodule_dot_git = fopen(sb.buf, "w");
        if (!submodule_dot_git)
                die_errno(_("cannot open file '%s'"), sb.buf);
 
-       fprintf(submodule_dot_git, "gitdir: %s\n",
-               relative_path(sm_gitdir, path, &rel_path));
+       fprintf_or_die(submodule_dot_git, "gitdir: %s\n",
+                      relative_path(sm_gitdir, path, &rel_path));
        if (fclose(submodule_dot_git))
                die(_("could not close file %s"), sb.buf);
        strbuf_reset(&sb);
        strbuf_reset(&rel_path);
 
-       cwd = xgetcwd();
        /* Redirect the worktree of the submodule in the superproject's config */
-       if (!is_absolute_path(sm_gitdir)) {
-               strbuf_addf(&sb, "%s/%s", cwd, sm_gitdir);
-               free(sm_gitdir);
-               sm_gitdir = strbuf_detach(&sb, NULL);
-       }
-
-       strbuf_addf(&sb, "%s/%s", cwd, path);
        p = git_pathdup_submodule(path, "config");
        if (!p)
                die(_("could not get submodule directory for '%s'"), path);
        git_config_set_in_file(p, "core.worktree",
-                              relative_path(sb.buf, sm_gitdir, &rel_path));
+                              relative_path(path, sm_gitdir, &rel_path));
        strbuf_release(&sb);
        strbuf_release(&rel_path);
        free(sm_gitdir);
-       free(cwd);
+       free(path);
        free(p);
        return 0;
 }
 
+struct submodule_update_clone {
+       /* index into 'list', the list of submodules to look into for cloning */
+       int current;
+       struct module_list list;
+       unsigned warn_if_uninitialized : 1;
+
+       /* update parameter passed via commandline */
+       struct submodule_update_strategy update;
+
+       /* configuration parameters which are passed on to the children */
+       int quiet;
+       const char *reference;
+       const char *depth;
+       const char *recursive_prefix;
+       const char *prefix;
+
+       /* Machine-readable status lines to be consumed by git-submodule.sh */
+       struct string_list projectlines;
+
+       /* If we want to stop as fast as possible and return an error */
+       unsigned quickstop : 1;
+};
+#define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \
+       SUBMODULE_UPDATE_STRATEGY_INIT, 0, NULL, NULL, NULL, NULL, \
+       STRING_LIST_INIT_DUP, 0}
+
+/**
+ * Determine whether 'ce' needs to be cloned. If so, prepare the 'child' to
+ * run the clone. Returns 1 if 'ce' needs to be cloned, 0 otherwise.
+ */
+static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
+                                          struct child_process *child,
+                                          struct submodule_update_clone *suc,
+                                          struct strbuf *out)
+{
+       const struct submodule *sub = NULL;
+       struct strbuf displaypath_sb = STRBUF_INIT;
+       struct strbuf sb = STRBUF_INIT;
+       const char *displaypath = NULL;
+       char *url = NULL;
+       int needs_cloning = 0;
+
+       if (ce_stage(ce)) {
+               if (suc->recursive_prefix)
+                       strbuf_addf(&sb, "%s/%s", suc->recursive_prefix, ce->name);
+               else
+                       strbuf_addf(&sb, "%s", ce->name);
+               strbuf_addf(out, _("Skipping unmerged submodule %s"), sb.buf);
+               strbuf_addch(out, '\n');
+               goto cleanup;
+       }
+
+       sub = submodule_from_path(null_sha1, ce->name);
+
+       if (suc->recursive_prefix)
+               displaypath = relative_path(suc->recursive_prefix,
+                                           ce->name, &displaypath_sb);
+       else
+               displaypath = ce->name;
+
+       if (suc->update.type == SM_UPDATE_NONE
+           || (suc->update.type == SM_UPDATE_UNSPECIFIED
+               && sub->update_strategy.type == SM_UPDATE_NONE)) {
+               strbuf_addf(out, _("Skipping submodule '%s'"), displaypath);
+               strbuf_addch(out, '\n');
+               goto cleanup;
+       }
+
+       /*
+        * Looking up the url in .git/config.
+        * We must not fall back to .gitmodules as we only want
+        * to process configured submodules.
+        */
+       strbuf_reset(&sb);
+       strbuf_addf(&sb, "submodule.%s.url", sub->name);
+       git_config_get_string(sb.buf, &url);
+       if (!url) {
+               /*
+                * Only mention uninitialized submodules when their
+                * path have been specified
+                */
+               if (suc->warn_if_uninitialized) {
+                       strbuf_addf(out,
+                               _("Submodule path '%s' not initialized"),
+                               displaypath);
+                       strbuf_addch(out, '\n');
+                       strbuf_addstr(out,
+                               _("Maybe you want to use 'update --init'?"));
+                       strbuf_addch(out, '\n');
+               }
+               goto cleanup;
+       }
+
+       strbuf_reset(&sb);
+       strbuf_addf(&sb, "%s/.git", ce->name);
+       needs_cloning = !file_exists(sb.buf);
+
+       strbuf_reset(&sb);
+       strbuf_addf(&sb, "%06o %s %d %d\t%s\n", ce->ce_mode,
+                       sha1_to_hex(ce->sha1), ce_stage(ce),
+                       needs_cloning, ce->name);
+       string_list_append(&suc->projectlines, sb.buf);
+
+       if (!needs_cloning)
+               goto cleanup;
+
+       child->git_cmd = 1;
+       child->no_stdin = 1;
+       child->stdout_to_stderr = 1;
+       child->err = -1;
+       argv_array_push(&child->args, "submodule--helper");
+       argv_array_push(&child->args, "clone");
+       if (suc->quiet)
+               argv_array_push(&child->args, "--quiet");
+       if (suc->prefix)
+               argv_array_pushl(&child->args, "--prefix", suc->prefix, NULL);
+       argv_array_pushl(&child->args, "--path", sub->path, NULL);
+       argv_array_pushl(&child->args, "--name", sub->name, NULL);
+       argv_array_pushl(&child->args, "--url", url, NULL);
+       if (suc->reference)
+               argv_array_push(&child->args, suc->reference);
+       if (suc->depth)
+               argv_array_push(&child->args, suc->depth);
+
+cleanup:
+       free(url);
+       strbuf_reset(&displaypath_sb);
+       strbuf_reset(&sb);
+
+       return needs_cloning;
+}
+
+static int update_clone_get_next_task(struct child_process *child,
+                                     struct strbuf *err,
+                                     void *suc_cb,
+                                     void **void_task_cb)
+{
+       struct submodule_update_clone *suc = suc_cb;
+
+       for (; suc->current < suc->list.nr; suc->current++) {
+               const struct cache_entry *ce = suc->list.entries[suc->current];
+               if (prepare_to_clone_next_submodule(ce, child, suc, err)) {
+                       suc->current++;
+                       return 1;
+               }
+       }
+       return 0;
+}
+
+static int update_clone_start_failure(struct strbuf *err,
+                                     void *suc_cb,
+                                     void *void_task_cb)
+{
+       struct submodule_update_clone *suc = suc_cb;
+       suc->quickstop = 1;
+       return 1;
+}
+
+static int update_clone_task_finished(int result,
+                                     struct strbuf *err,
+                                     void *suc_cb,
+                                     void *void_task_cb)
+{
+       struct submodule_update_clone *suc = suc_cb;
+
+       if (!result)
+               return 0;
+
+       suc->quickstop = 1;
+       return 1;
+}
+
+static int update_clone(int argc, const char **argv, const char *prefix)
+{
+       const char *update = NULL;
+       int max_jobs = -1;
+       struct string_list_item *item;
+       struct pathspec pathspec;
+       struct submodule_update_clone suc = SUBMODULE_UPDATE_CLONE_INIT;
+
+       struct option module_update_clone_options[] = {
+               OPT_STRING(0, "prefix", &prefix,
+                          N_("path"),
+                          N_("path into the working tree")),
+               OPT_STRING(0, "recursive-prefix", &suc.recursive_prefix,
+                          N_("path"),
+                          N_("path into the working tree, across nested "
+                             "submodule boundaries")),
+               OPT_STRING(0, "update", &update,
+                          N_("string"),
+                          N_("rebase, merge, checkout or none")),
+               OPT_STRING(0, "reference", &suc.reference, N_("repo"),
+                          N_("reference repository")),
+               OPT_STRING(0, "depth", &suc.depth, "<depth>",
+                          N_("Create a shallow clone truncated to the "
+                             "specified number of revisions")),
+               OPT_INTEGER('j', "jobs", &max_jobs,
+                           N_("parallel jobs")),
+               OPT__QUIET(&suc.quiet, N_("don't print cloning progress")),
+               OPT_END()
+       };
+
+       const char *const git_submodule_helper_usage[] = {
+               N_("git submodule--helper update_clone [--prefix=<path>] [<path>...]"),
+               NULL
+       };
+       suc.prefix = prefix;
+
+       argc = parse_options(argc, argv, prefix, module_update_clone_options,
+                            git_submodule_helper_usage, 0);
+
+       if (update)
+               if (parse_submodule_update_strategy(update, &suc.update) < 0)
+                       die(_("bad value for update parameter"));
+
+       if (module_list_compute(argc, argv, prefix, &pathspec, &suc.list) < 0)
+               return 1;
+
+       if (pathspec.nr)
+               suc.warn_if_uninitialized = 1;
+
+       /* Overlay the parsed .gitmodules file with .git/config */
+       gitmodules_config();
+       git_config(submodule_config, NULL);
+
+       if (max_jobs < 0)
+               max_jobs = parallel_submodules();
+
+       run_processes_parallel(max_jobs,
+                              update_clone_get_next_task,
+                              update_clone_start_failure,
+                              update_clone_task_finished,
+                              &suc);
+
+       /*
+        * We saved the output and put it out all at once now.
+        * That means:
+        * - the listener does not have to interleave their (checkout)
+        *   work with our fetching.  The writes involved in a
+        *   checkout involve more straightforward sequential I/O.
+        * - the listener can avoid doing any work if fetching failed.
+        */
+       if (suc.quickstop)
+               return 1;
+
+       for_each_string_list_item(item, &suc.projectlines)
+               utf8_fprintf(stdout, "%s", item->string);
+
+       return 0;
+}
+
 struct cmd_struct {
        const char *cmd;
        int (*fn)(int, const char **, const char *);
@@ -258,19 +504,20 @@ static struct cmd_struct commands[] = {
        {"list", module_list},
        {"name", module_name},
        {"clone", module_clone},
+       {"update-clone", update_clone}
 };
 
 int cmd_submodule__helper(int argc, const char **argv, const char *prefix)
 {
        int i;
        if (argc < 2)
-               die(_("fatal: submodule--helper subcommand must be "
+               die(_("submodule--helper subcommand must be "
                      "called with a subcommand"));
 
        for (i = 0; i < ARRAY_SIZE(commands); i++)
                if (!strcmp(argv[1], commands[i].cmd))
                        return commands[i].fn(argc - 1, argv + 1, prefix);
 
-       die(_("fatal: '%s' is not a valid submodule--helper "
+       die(_("'%s' is not a valid submodule--helper "
              "subcommand"), argv[1]);
 }
index 753a90d3071d1917495ca725fe15a944f84b6f60..07290d07ae2012714702b287d7ddcd357038b449 100755 (executable)
@@ -663,6 +663,14 @@ cmd_update()
                --depth=*)
                        depth=$1
                        ;;
+               -j|--jobs)
+                       case "$2" in '') usage ;; esac
+                       jobs="--jobs=$2"
+                       shift
+                       ;;
+               --jobs=*)
+                       jobs=$1
+                       ;;
                --)
                        shift
                        break
@@ -682,17 +690,21 @@ cmd_update()
                cmd_init "--" "$@" || return
        fi
 
-       cloned_modules=
-       git submodule--helper list --prefix "$wt_prefix" "$@" | {
+       {
+       git submodule--helper update-clone ${GIT_QUIET:+--quiet} \
+               ${wt_prefix:+--prefix "$wt_prefix"} \
+               ${prefix:+--recursive-prefix "$prefix"} \
+               ${update:+--update "$update"} \
+               ${reference:+--reference "$reference"} \
+               ${depth:+--depth "$depth"} \
+               ${jobs:+$jobs} \
+               "$@" || echo "#unmatched"
+       } | {
        err=
-       while read mode sha1 stage sm_path
+       while read mode sha1 stage just_cloned sm_path
        do
                die_if_unmatched "$mode"
-               if test "$stage" = U
-               then
-                       echo >&2 "Skipping unmerged submodule $prefix$sm_path"
-                       continue
-               fi
+
                name=$(git submodule--helper name "$sm_path") || exit
                url=$(git config submodule."$name".url)
                branch=$(get_submodule_config "$name" branch master)
@@ -709,27 +721,10 @@ cmd_update()
 
                displaypath=$(relative_path "$prefix$sm_path")
 
-               if test "$update_module" = "none"
+               if test $just_cloned -eq 1
                then
-                       echo "Skipping submodule '$displaypath'"
-                       continue
-               fi
-
-               if test -z "$url"
-               then
-                       # Only mention uninitialized submodules when its
-                       # path have been specified
-                       test "$#" != "0" &&
-                       say "$(eval_gettext "Submodule path '\$displaypath' not initialized
-Maybe you want to use 'update --init'?")"
-                       continue
-               fi
-
-               if ! test -d "$sm_path"/.git && ! test -f "$sm_path"/.git
-               then
-                       git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$prefix" --path "$sm_path" --name "$name" --url "$url" "$reference" "$depth" || exit
-                       cloned_modules="$cloned_modules;$name"
                        subsha1=
+                       update_module=checkout
                else
                        subsha1=$(clear_local_git_env; cd "$sm_path" &&
                                git rev-parse --verify HEAD) ||
@@ -774,13 +769,6 @@ Maybe you want to use 'update --init'?")"
                                die "$(eval_gettext "Fetched in submodule path '\$displaypath', but it did not contain $sha1. Direct fetching of that commit failed.")"
                        fi
 
-                       # Is this something we just cloned?
-                       case ";$cloned_modules;" in
-                       *";$name;"*)
-                               # then there is no local change to integrate
-                               update_module=checkout ;;
-                       esac
-
                        must_die_on_failure=
                        case "$update_module" in
                        checkout)
index c72601056cf5ae7be2593ae89af4effc26a1b043..8c7115ade496e5bbaf1b584199da8f3ab21fa087 100644 (file)
@@ -902,7 +902,7 @@ struct parallel_processes {
        struct strbuf buffered_output; /* of finished children */
 };
 
-static int default_start_failure(struct strbuf *err,
+static int default_start_failure(struct strbuf *out,
                                 void *pp_cb,
                                 void *pp_task_cb)
 {
@@ -910,7 +910,7 @@ static int default_start_failure(struct strbuf *err,
 }
 
 static int default_task_finished(int result,
-                                struct strbuf *err,
+                                struct strbuf *out,
                                 void *pp_cb,
                                 void *pp_task_cb)
 {
@@ -994,7 +994,7 @@ static void pp_cleanup(struct parallel_processes *pp)
         * When get_next_task added messages to the buffer in its last
         * iteration, the buffered output is non empty.
         */
-       fputs(pp->buffered_output.buf, stderr);
+       strbuf_write(&pp->buffered_output, stderr);
        strbuf_release(&pp->buffered_output);
 
        sigchain_pop_common();
@@ -1079,7 +1079,7 @@ static void pp_output(struct parallel_processes *pp)
        int i = pp->output_owner;
        if (pp->children[i].state == GIT_CP_WORKING &&
            pp->children[i].err.len) {
-               fputs(pp->children[i].err.buf, stderr);
+               strbuf_write(&pp->children[i].err, stderr);
                strbuf_reset(&pp->children[i].err);
        }
 }
@@ -1117,11 +1117,11 @@ static int pp_collect_finished(struct parallel_processes *pp)
                        strbuf_addbuf(&pp->buffered_output, &pp->children[i].err);
                        strbuf_reset(&pp->children[i].err);
                } else {
-                       fputs(pp->children[i].err.buf, stderr);
+                       strbuf_write(&pp->children[i].err, stderr);
                        strbuf_reset(&pp->children[i].err);
 
                        /* Output all other finished child processes */
-                       fputs(pp->buffered_output.buf, stderr);
+                       strbuf_write(&pp->buffered_output, stderr);
                        strbuf_reset(&pp->buffered_output);
 
                        /*
index 3d1e59e26e33d062a10698fc139f7fc0f4ae14ec..de1727efab9d7e57a41626ac8bd89e5149412dc8 100644 (file)
@@ -140,7 +140,7 @@ void NORETURN async_exit(int code);
  * return the negative signal number.
  */
 typedef int (*get_next_task_fn)(struct child_process *cp,
-                               struct strbuf *err,
+                               struct strbuf *out,
                                void *pp_cb,
                                void **pp_task_cb);
 
@@ -149,7 +149,7 @@ typedef int (*get_next_task_fn)(struct child_process *cp,
  * a new process.
  *
  * You must not write to stdout or stderr in this function. Add your
- * message to the strbuf err instead, which will be printed without
+ * message to the strbuf out instead, which will be printed without
  * messing up the output of the other parallel processes.
  *
  * pp_cb is the callback cookie as passed into run_processes_parallel,
@@ -159,7 +159,7 @@ typedef int (*get_next_task_fn)(struct child_process *cp,
  * To send a signal to other child processes for abortion, return
  * the negative signal number.
  */
-typedef int (*start_failure_fn)(struct strbuf *err,
+typedef int (*start_failure_fn)(struct strbuf *out,
                                void *pp_cb,
                                void *pp_task_cb);
 
@@ -167,7 +167,7 @@ typedef int (*start_failure_fn)(struct strbuf *err,
  * This callback is called on every child process that finished processing.
  *
  * You must not write to stdout or stderr in this function. Add your
- * message to the strbuf err instead, which will be printed without
+ * message to the strbuf out instead, which will be printed without
  * messing up the output of the other parallel processes.
  *
  * pp_cb is the callback cookie as passed into run_processes_parallel,
@@ -178,7 +178,7 @@ typedef int (*start_failure_fn)(struct strbuf *err,
  * the negative signal number.
  */
 typedef int (*task_finished_fn)(int result,
-                               struct strbuf *err,
+                               struct strbuf *out,
                                void *pp_cb,
                                void *pp_task_cb);
 
index f60e2ee72ba86cbd6c66622366af4a7faf25e1a0..63896e8f208944a438e46e32a9665d200dec4f4f 100644 (file)
--- a/strbuf.c
+++ b/strbuf.c
@@ -395,6 +395,12 @@ ssize_t strbuf_read_once(struct strbuf *sb, int fd, size_t hint)
        return cnt;
 }
 
+ssize_t strbuf_write(struct strbuf *sb, FILE *f)
+{
+       return sb->len ? fwrite(sb->buf, 1, sb->len, f) : 0;
+}
+
+
 #define STRBUF_MAXLINK (2*PATH_MAX)
 
 int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint)
index f72fd14c2eaded0399b779150ea1565edd7bf47a..7987405313de3a8779e338129af62f9286c9985c 100644 (file)
--- a/strbuf.h
+++ b/strbuf.h
@@ -386,6 +386,12 @@ extern ssize_t strbuf_read_file(struct strbuf *sb, const char *path, size_t hint
  */
 extern int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint);
 
+/**
+ * Write the whole content of the strbuf to the stream not stopping at
+ * NUL bytes.
+ */
+extern ssize_t strbuf_write(struct strbuf *sb, FILE *stream);
+
 /**
  * Read a line from a FILE *, overwriting the existing contents of
  * the strbuf.  The strbuf_getline*() family of functions share
index 92502b594d055bbf99fd203175d7dffaf8dfb732..b82d1fbb22efd4c7279edd05955c38ba8df5311b 100644 (file)
@@ -59,6 +59,7 @@ static void free_one_config(struct submodule_entry *entry)
 {
        free((void *) entry->config->path);
        free((void *) entry->config->name);
+       free((void *) entry->config->update_strategy.command);
        free(entry->config);
 }
 
@@ -194,6 +195,8 @@ static struct submodule *lookup_or_create_by_name(struct submodule_cache *cache,
 
        submodule->path = NULL;
        submodule->url = NULL;
+       submodule->update_strategy.type = SM_UPDATE_UNSPECIFIED;
+       submodule->update_strategy.command = NULL;
        submodule->fetch_recurse = RECURSE_SUBMODULES_NONE;
        submodule->ignore = NULL;
 
@@ -293,7 +296,7 @@ static int parse_config(const char *var, const char *value, void *data)
        if (!strcmp(item.buf, "path")) {
                if (!value)
                        ret = config_error_nonbool(var);
-               else if (!me->overwrite && submodule->path != NULL)
+               else if (!me->overwrite && submodule->path)
                        warn_multiple_config(me->commit_sha1, submodule->name,
                                        "path");
                else {
@@ -317,7 +320,7 @@ static int parse_config(const char *var, const char *value, void *data)
        } else if (!strcmp(item.buf, "ignore")) {
                if (!value)
                        ret = config_error_nonbool(var);
-               else if (!me->overwrite && submodule->ignore != NULL)
+               else if (!me->overwrite && submodule->ignore)
                        warn_multiple_config(me->commit_sha1, submodule->name,
                                        "ignore");
                else if (strcmp(value, "untracked") &&
@@ -333,13 +336,23 @@ static int parse_config(const char *var, const char *value, void *data)
        } else if (!strcmp(item.buf, "url")) {
                if (!value) {
                        ret = config_error_nonbool(var);
-               } else if (!me->overwrite && submodule->url != NULL) {
+               } else if (!me->overwrite && submodule->url) {
                        warn_multiple_config(me->commit_sha1, submodule->name,
                                        "url");
                } else {
                        free((void *) submodule->url);
                        submodule->url = xstrdup(value);
                }
+       } else if (!strcmp(item.buf, "update")) {
+               if (!value)
+                       ret = config_error_nonbool(var);
+               else if (!me->overwrite &&
+                        submodule->update_strategy.type != SM_UPDATE_UNSPECIFIED)
+                       warn_multiple_config(me->commit_sha1, submodule->name,
+                                            "update");
+               else if (parse_submodule_update_strategy(value,
+                        &submodule->update_strategy) < 0)
+                               die(_("invalid value for %s"), var);
        }
 
        strbuf_release(&name);
index 9bfa65af034fd39cb5bda1cdc1460f6d9b7394df..e4857f53a87d4b8316d53c5f90bc47286179d2c5 100644 (file)
@@ -2,6 +2,7 @@
 #define SUBMODULE_CONFIG_CACHE_H
 
 #include "hashmap.h"
+#include "submodule.h"
 #include "strbuf.h"
 
 /*
@@ -14,6 +15,7 @@ struct submodule {
        const char *url;
        int fetch_recurse;
        const char *ignore;
+       struct submodule_update_strategy update_strategy;
        /* the sha1 blob id of the responsible .gitmodules file */
        unsigned char gitmodules_sha1[20];
 };
index 62c4356c50d4a41381336559f4e9af27e520ad0d..90825e17fab5872d2e4c94a3cab84c696eb69248 100644 (file)
@@ -15,6 +15,7 @@
 #include "thread-utils.h"
 
 static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
+static int parallel_jobs = 1;
 static struct string_list changed_submodule_paths;
 static int initialized_fetch_ref_tips;
 static struct sha1_array ref_tips_before_fetch;
@@ -169,7 +170,12 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
 
 int submodule_config(const char *var, const char *value, void *cb)
 {
-       if (starts_with(var, "submodule."))
+       if (!strcmp(var, "submodule.fetchjobs")) {
+               parallel_jobs = git_config_int(var, value);
+               if (parallel_jobs < 0)
+                       die(_("negative values not allowed for submodule.fetchJobs"));
+               return 0;
+       } else if (starts_with(var, "submodule."))
                return parse_submodule_config_option(var, value);
        else if (!strcmp(var, "fetch.recursesubmodules")) {
                config_fetch_recurse_submodules = parse_fetch_recurse_submodules_arg(var, value);
@@ -210,6 +216,27 @@ void gitmodules_config(void)
        }
 }
 
+int parse_submodule_update_strategy(const char *value,
+               struct submodule_update_strategy *dst)
+{
+       free((void*)dst->command);
+       dst->command = NULL;
+       if (!strcmp(value, "none"))
+               dst->type = SM_UPDATE_NONE;
+       else if (!strcmp(value, "checkout"))
+               dst->type = SM_UPDATE_CHECKOUT;
+       else if (!strcmp(value, "rebase"))
+               dst->type = SM_UPDATE_REBASE;
+       else if (!strcmp(value, "merge"))
+               dst->type = SM_UPDATE_MERGE;
+       else if (skip_prefix(value, "!", &value)) {
+               dst->type = SM_UPDATE_COMMAND;
+               dst->command = xstrdup(value);
+       } else
+               return -1;
+       return 0;
+}
+
 void handle_ignore_submodules_arg(struct diff_options *diffopt,
                                  const char *arg)
 {
@@ -750,6 +777,9 @@ int fetch_populated_submodules(const struct argv_array *options,
        argv_array_push(&spf.args, "--recurse-submodules-default");
        /* default value, "--submodule-prefix" and its value are added later */
 
+       if (max_parallel_jobs < 0)
+               max_parallel_jobs = parallel_jobs;
+
        calculate_changed_submodule_paths();
        run_processes_parallel(max_parallel_jobs,
                               get_next_submodule,
@@ -1094,3 +1124,8 @@ void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir)
        strbuf_release(&rel_path);
        free((void *)real_work_tree);
 }
+
+int parallel_submodules(void)
+{
+       return parallel_jobs;
+}
index e06eaa5ebb30e825fd0721c76e7d194b0b854706..7ef3775184e1a54bbbebc5b940977c2b61cb914f 100644 (file)
@@ -14,6 +14,21 @@ enum {
        RECURSE_SUBMODULES_ON = 2
 };
 
+enum submodule_update_type {
+       SM_UPDATE_UNSPECIFIED = 0,
+       SM_UPDATE_CHECKOUT,
+       SM_UPDATE_REBASE,
+       SM_UPDATE_MERGE,
+       SM_UPDATE_NONE,
+       SM_UPDATE_COMMAND
+};
+
+struct submodule_update_strategy {
+       enum submodule_update_type type;
+       const char *command;
+};
+#define SUBMODULE_UPDATE_STRATEGY_INIT {SM_UPDATE_UNSPECIFIED, NULL}
+
 int is_staging_gitmodules_ok(void);
 int update_path_in_gitmodules(const char *oldpath, const char *newpath);
 int remove_path_from_gitmodules(const char *path);
@@ -22,6 +37,8 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
                const char *path);
 int submodule_config(const char *var, const char *value, void *cb);
 void gitmodules_config(void);
+int parse_submodule_update_strategy(const char *value,
+               struct submodule_update_strategy *dst);
 void handle_ignore_submodules_arg(struct diff_options *diffopt, const char *);
 void show_submodule_summary(FILE *f, const char *path,
                const char *line_prefix,
@@ -42,5 +59,6 @@ int find_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_nam
                struct string_list *needs_pushing);
 int push_unpushed_submodules(unsigned char new_sha1[20], const char *remotes_name);
 void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir);
+int parallel_submodules(void);
 
 #endif
index 1241146227aead97022ade343152347bc911444c..954d0e43f52375b1ed86a4edb9d274714d3b596d 100755 (executable)
@@ -471,4 +471,18 @@ test_expect_success "don't fetch submodule when newly recorded commits are alrea
        test_i18ncmp expect.err actual.err
 '
 
+test_expect_success 'fetching submodules respects parallel settings' '
+       git config fetch.recurseSubmodules true &&
+       (
+               cd downstream &&
+               GIT_TRACE=$(pwd)/trace.out git fetch --jobs 7 &&
+               grep "7 tasks" trace.out &&
+               git config submodule.fetchJobs 8 &&
+               GIT_TRACE=$(pwd)/trace.out git fetch &&
+               grep "8 tasks" trace.out &&
+               GIT_TRACE=$(pwd)/trace.out git fetch --jobs 9 &&
+               grep "9 tasks" trace.out
+       )
+'
+
 test_done
index e1abd1923033617540c915af4372ba42936326d0..f99f674ac795b7b55c5fc678257bd7365c71e62d 100755 (executable)
@@ -462,7 +462,7 @@ test_expect_success 'update --init' '
        git config --remove-section submodule.example &&
        test_must_fail git config submodule.example.url &&
 
-       git submodule update init > update.out &&
+       git submodule update init 2> update.out &&
        cat update.out &&
        test_i18ngrep "not initialized" update.out &&
        test_must_fail git rev-parse --resolve-git-dir init/.git &&
@@ -480,7 +480,7 @@ test_expect_success 'update --init from subdirectory' '
        mkdir -p sub &&
        (
                cd sub &&
-               git submodule update ../init >update.out &&
+               git submodule update ../init 2>update.out &&
                cat update.out &&
                test_i18ngrep "not initialized" update.out &&
                test_must_fail git rev-parse --resolve-git-dir ../init/.git &&
@@ -818,6 +818,47 @@ test_expect_success 'submodule add --name allows to replace a submodule with ano
        )
 '
 
+test_expect_success 'recursive relative submodules stay relative' '
+       test_when_finished "rm -rf super clone2 subsub sub3" &&
+       mkdir subsub &&
+       (
+               cd subsub &&
+               git init &&
+               >t &&
+               git add t &&
+               git commit -m "initial commit"
+       ) &&
+       mkdir sub3 &&
+       (
+               cd sub3 &&
+               git init &&
+               >t &&
+               git add t &&
+               git commit -m "initial commit" &&
+               git submodule add ../subsub dirdir/subsub &&
+               git commit -m "add submodule subsub"
+       ) &&
+       mkdir super &&
+       (
+               cd super &&
+               git init &&
+               >t &&
+               git add t &&
+               git commit -m "initial commit" &&
+               git submodule add ../sub3 &&
+               git commit -m "add submodule sub"
+       ) &&
+       git clone super clone2 &&
+       (
+               cd clone2 &&
+               git submodule update --init --recursive &&
+               echo "gitdir: ../.git/modules/sub3" >./sub3/.git_expect &&
+               echo "gitdir: ../../../.git/modules/sub3/modules/dirdir/subsub" >./sub3/dirdir/subsub/.git_expect
+       ) &&
+       test_cmp clone2/sub3/.git_expect clone2/sub3/.git &&
+       test_cmp clone2/sub3/dirdir/subsub/.git_expect clone2/sub3/dirdir/subsub/.git
+'
+
 test_expect_success 'submodule add with an existing name fails unless forced' '
        (
                cd addtest2 &&
index e5af4b497646944d0c116f68de5b05bd6dfd7445..fd741f506f4192e56348fcced49b2deabe59b9e7 100755 (executable)
@@ -850,4 +850,31 @@ test_expect_success 'submodule update --recursive drops module name before recur
         test_i18ngrep "Submodule path .deeper/submodule/subsubmodule.: checked out" actual
        )
 '
+
+test_expect_success 'submodule update can be run in parallel' '
+       (cd super2 &&
+        GIT_TRACE=$(pwd)/trace.out git submodule update --jobs 7 &&
+        grep "7 tasks" trace.out &&
+        git config submodule.fetchJobs 8 &&
+        GIT_TRACE=$(pwd)/trace.out git submodule update &&
+        grep "8 tasks" trace.out &&
+        GIT_TRACE=$(pwd)/trace.out git submodule update --jobs 9 &&
+        grep "9 tasks" trace.out
+       )
+'
+
+test_expect_success 'git clone passes the parallel jobs config on to submodules' '
+       test_when_finished "rm -rf super4" &&
+       GIT_TRACE=$(pwd)/trace.out git clone --recurse-submodules --jobs 7 . super4 &&
+       grep "7 tasks" trace.out &&
+       rm -rf super4 &&
+       git config --global submodule.fetchJobs 8 &&
+       GIT_TRACE=$(pwd)/trace.out git clone --recurse-submodules . super4 &&
+       grep "8 tasks" trace.out &&
+       rm -rf super4 &&
+       GIT_TRACE=$(pwd)/trace.out git clone --recurse-submodules --jobs 9 . super4 &&
+       grep "9 tasks" trace.out &&
+       rm -rf super4
+'
+
 test_done