From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Beller Subject: [PATCHv7 8/8] submodules: allow parallel fetching, add tests and documentation Date: Mon, 12 Oct 2015 11:47:21 -0700 Message-ID: <1444675641-14866-9-git-send-email-sbeller@google.com> References: <1444675641-14866-1-git-send-email-sbeller@google.com> Cc: git@vger.kernel.org, Stefan Beller To: gitster@pobox.com X-From: git-owner@vger.kernel.org Mon Oct 12 20:47:53 2015 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Zli8W-0006Ox-Sf for gcvg-git-2@plane.gmane.org; Mon, 12 Oct 2015 20:47:53 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752584AbbJLSrj (ORCPT ); Mon, 12 Oct 2015 14:47:39 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:34775 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751081AbbJLSrg (ORCPT ); Mon, 12 Oct 2015 14:47:36 -0400 Received: by padhy16 with SMTP id hy16so160547578pad.1 for ; Mon, 12 Oct 2015 11:47:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=zXPtNORjt8iNHOIOVquWkgPdjiTI4h+Vc2IiBF0yMAI=; b=MIOdwPD1MSvdBwGPrILrgfMw2x0x7yfb0OcnaYP81HXtdGnHoKi5FdK+IwoIQJTUeS rR6sASnfas2FnBg5wZ4e8Tt18k8UwXt5GRzVVnMLbW8suuuZ/E5dXaGUiZxy74YEqErT MTaoCyA4kD2S5UT8nWEjyvltKrLDsabUSgJ2KFZXoqEbEGun8wn/FfeJECC2WEDEG/hA uBLtfHx8scbdopJq22Ovch/WG36BHwjKummsCp6gkZmVItT+dc0aDj8uYc2XASPWr7P/ zJmX2yxC4VvC/bZ43/N0ydY6reNW85JfA0az8Quy0PJrTXZcOX7vVskiZmUWEd+Icok4 MYJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=zXPtNORjt8iNHOIOVquWkgPdjiTI4h+Vc2IiBF0yMAI=; b=mgQkQdoSpBCbnwGAhA8oG+MiReq26BtCco3kPX5bU2v6E3+6ybiuoMVoXS9yJ8Yqo5 g2Nd4I4plgiCcaTb/p9L+c+ClAAr9VfE5SWAYtVKUj44VWpKz79wXrHPOIlbOU5X1jhW zueYgv5g6pmeG6LpdyEe3JlWmZ9iXCjI4CzS4X7f9MXgfNNq/jWow+eebk4rv02DNXk8 7eN2vosWRzPPv9c1Y2+t3UoB9l0+esRHpJEGCf76zPol/qWiISUKa1OvgynI/Bu4bdM+ pxMXh/GSBDU+ceAMnn9Qm21tFhhGYEKKyYKW3HAqos9EMJ6t6r3bbmYgbQjYBaYj51Lr 8+PA== X-Gm-Message-State: ALoCoQnH7IW7ldkvCcRjUX2zTIZ7q3Or1kARsYS9rTZWe/p03/Cdf6h4Q2Sz49w2EFBaUcLCvWL+ X-Received: by 10.68.110.165 with SMTP id ib5mr35775421pbb.58.1444675656032; Mon, 12 Oct 2015 11:47:36 -0700 (PDT) Received: from localhost ([2620:0:1000:5b00:5950:8bdc:8939:e460]) by smtp.gmail.com with ESMTPSA id qb7sm8061492pab.47.2015.10.12.11.47.35 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 12 Oct 2015 11:47:35 -0700 (PDT) X-Mailer: git-send-email 2.5.0.268.g453a26a In-Reply-To: <1444675641-14866-1-git-send-email-sbeller@google.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: This enables the work of the previous patches. Signed-off-by: Stefan Beller --- Documentation/fetch-options.txt | 7 +++++++ builtin/fetch.c | 6 +++++- builtin/pull.c | 6 ++++++ submodule.c | 3 +-- submodule.h | 2 +- t/t5526-fetch-submodules.sh | 19 +++++++++++++++++++ 6 files changed, 39 insertions(+), 4 deletions(-) diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index 45583d8..6b109f6 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -100,6 +100,13 @@ ifndef::git-pull[] reference to a commit that isn't already in the local submodule clone. +-j:: +--jobs=:: + Number of parallel children to be used for fetching submodules. + Each will fetch from different submodules, such that fetching many + submodules will be faster. By default submodules will be fetched + one at a time. + --no-recurse-submodules:: Disable recursive fetching of submodules (this has the same effect as using the '--recurse-submodules=no' option). diff --git a/builtin/fetch.c b/builtin/fetch.c index ee1f1a9..f28eac6 100644 --- a/builtin/fetch.c +++ b/builtin/fetch.c @@ -37,6 +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 const char *depth; static const char *upload_pack; static struct strbuf default_rla = STRBUF_INIT; @@ -99,6 +100,8 @@ static struct option builtin_fetch_options[] = { N_("fetch all tags and associated objects"), TAGS_SET), OPT_SET_INT('n', NULL, &tags, N_("do not fetch all tags (--no-tags)"), TAGS_UNSET), + OPT_INTEGER('j', "jobs", &max_children, + N_("number of submodules fetched in parallel")), OPT_BOOL('p', "prune", &prune, N_("prune remote-tracking branches no longer on remote")), { OPTION_CALLBACK, 0, "recurse-submodules", NULL, N_("on-demand"), @@ -1217,7 +1220,8 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) result = fetch_populated_submodules(&options, submodule_prefix, recurse_submodules, - verbosity < 0); + verbosity < 0, + max_children); argv_array_clear(&options); } diff --git a/builtin/pull.c b/builtin/pull.c index 722a83c..f0af196 100644 --- a/builtin/pull.c +++ b/builtin/pull.c @@ -94,6 +94,7 @@ static int opt_force; static char *opt_tags; static char *opt_prune; static char *opt_recurse_submodules; +static char *max_children; static int opt_dry_run; static char *opt_keep; static char *opt_depth; @@ -177,6 +178,9 @@ static struct option pull_options[] = { N_("on-demand"), N_("control recursive fetching of submodules"), PARSE_OPT_OPTARG), + OPT_PASSTHRU('j', "jobs", &max_children, N_("n"), + N_("number of submodules pulled in parallel"), + PARSE_OPT_OPTARG), OPT_BOOL(0, "dry-run", &opt_dry_run, N_("dry run")), OPT_PASSTHRU('k', "keep", &opt_keep, NULL, @@ -524,6 +528,8 @@ static int run_fetch(const char *repo, const char **refspecs) argv_array_push(&args, opt_prune); if (opt_recurse_submodules) argv_array_push(&args, opt_recurse_submodules); + if (max_children) + argv_array_push(&args, max_children); if (opt_dry_run) argv_array_push(&args, "--dry-run"); if (opt_keep) diff --git a/submodule.c b/submodule.c index 8fdd2cb..c21b265 100644 --- a/submodule.c +++ b/submodule.c @@ -737,10 +737,9 @@ static int fetch_finish(int retvalue, struct child_process *cp, int fetch_populated_submodules(const struct argv_array *options, const char *prefix, int command_line_option, - int quiet) + int quiet, int max_parallel_jobs) { int i; - int max_parallel_jobs = 1; struct submodule_parallel_fetch spf = SPF_INIT; spf.work_tree = get_git_work_tree(); diff --git a/submodule.h b/submodule.h index 5507c3d..cbc0003 100644 --- a/submodule.h +++ b/submodule.h @@ -31,7 +31,7 @@ void set_config_fetch_recurse_submodules(int value); void check_for_new_submodule_commits(unsigned char new_sha1[20]); int fetch_populated_submodules(const struct argv_array *options, const char *prefix, int command_line_option, - int quiet); + int quiet, int max_parallel_jobs); unsigned is_submodule_modified(const char *path, int ignore_untracked); int submodule_uses_gitfile(const char *path); int ok_to_remove_submodule(const char *path); diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh index 17759b1..1b4ce69 100755 --- a/t/t5526-fetch-submodules.sh +++ b/t/t5526-fetch-submodules.sh @@ -71,6 +71,16 @@ test_expect_success "fetch --recurse-submodules recurses into submodules" ' test_i18ncmp expect.err actual.err ' +test_expect_success "fetch --recurse-submodules -j2 has the same output behaviour" ' + add_upstream_commit && + ( + cd downstream && + git fetch --recurse-submodules -j2 2>../actual.err + ) && + test_must_be_empty actual.out && + test_i18ncmp expect.err actual.err +' + test_expect_success "fetch alone only fetches superproject" ' add_upstream_commit && ( @@ -140,6 +150,15 @@ test_expect_success "--quiet propagates to submodules" ' ! test -s actual.err ' +test_expect_success "--quiet propagates to parallel submodules" ' + ( + cd downstream && + git fetch --recurse-submodules -j 2 --quiet >../actual.out 2>../actual.err + ) && + ! test -s actual.out && + ! test -s actual.err +' + test_expect_success "--dry-run propagates to submodules" ' add_upstream_commit && ( -- 2.5.0.268.g453a26a