From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Beller Subject: [PATCH 6/7] submodule: implement `module_name` as a builtin helper Date: Mon, 17 Aug 2015 17:22:02 -0700 Message-ID: <1439857323-21048-7-git-send-email-sbeller@google.com> References: <1439857323-21048-1-git-send-email-sbeller@google.com> Cc: gitster@pobox.com, Jens.Lehmann@web.de, hvoigt@hvoigt.net, Stefan Beller To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Tue Aug 18 02:22:52 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 1ZRUfz-00085k-H1 for gcvg-git-2@plane.gmane.org; Tue, 18 Aug 2015 02:22:52 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752136AbbHRAWl (ORCPT ); Mon, 17 Aug 2015 20:22:41 -0400 Received: from mail-pa0-f52.google.com ([209.85.220.52]:35006 "EHLO mail-pa0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752062AbbHRAWY (ORCPT ); Mon, 17 Aug 2015 20:22:24 -0400 Received: by pacgr6 with SMTP id gr6so118964684pac.2 for ; Mon, 17 Aug 2015 17:22:24 -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=Sfl52oVI20CcON0R3Ia0WYOVAqioArbguSTmnuJRfOE=; b=TAbSwVYpxP2eaE50+o8K53maLgCkqg/QRwBOWXa8oDFF+zexoxS9IP/uMUJqNwUQpX KdjZMn4xAqsFSZEoNZrcX0KGFUtY1FS6iZ6NadTRoQz/bDmL8+CovjyT0To4L8xmkh/T vihMkjUSLkqdi/rS2t6ArpFsCPTeFVRO3EnDiEaoVOk0YJAFL/AC8ooq2lr2r7wECiHs E/K60/vK8AmZyNDWCn1+SA2Jq3C7xBEdyW508Uo0fNXadvKCG3g6W+Fd9dFkN6y2URRa R1yrsrjxECs8fXZhYOwTzCwW6+7yO0ILuRkZ33aZY89njeGffq/sCpcUEmnjAhpWRz0h wq+A== 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=Sfl52oVI20CcON0R3Ia0WYOVAqioArbguSTmnuJRfOE=; b=TJu8P/D9p8B0qUPcF9BTJ4fWkIobGaD3S1HXdMazQTPD8pZ+O5P/RyR6iSeDrRq+Ji eeDhugSDAzgC9wgnxiKrAdriJ706nNgdJCYrZ2itM6vOBsCAi44WHLmuI/2omXBVgpI8 UoErv0jR7OzZVtxlnXlktbKoh9jlAONL5+yY5YyDq8hv6ZoL6//AV9dhTNXsiK2Yvg3Z Qk3p6l8gNI2fU0xyQeYDoKSIF3v4VubqCZaFOFapq5NDCGyOtzVpxhJfsbypFjCOKLPe G2sot0FLVxQ/dxQB9mQMepzDjWehGGIfL+n339SvVFyp49J6S4n8S+0Kv38FnTVts6un XNSw== X-Gm-Message-State: ALoCoQkCAZeOIZx5XYE5PDv+fFkuSnFCok0Ad3alNcN6hYth6T97eqsvdSbiHbp5L6sGWfaRdVtr X-Received: by 10.66.252.131 with SMTP id zs3mr7339502pac.75.1439857344184; Mon, 17 Aug 2015 17:22:24 -0700 (PDT) Received: from localhost ([2620:0:1000:5b00:bca6:6b6f:4dbb:30a3]) by smtp.gmail.com with ESMTPSA id kn8sm15937360pdb.67.2015.08.17.17.22.23 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 17 Aug 2015 17:22:23 -0700 (PDT) X-Mailer: git-send-email 2.5.0.330.g130be8e.dirty In-Reply-To: <1439857323-21048-1-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 implements the helper `module_name` in C instead of shell, yielding a nice performance boost. Before this patch, I measured a time (best out of three): $ time ./t7400-submodule-basic.sh >/dev/null real 0m11.066s user 0m3.348s sys 0m8.534s With this patch applied I measured (also best out of three) $ time ./t7400-submodule-basic.sh >/dev/null real 0m10.063s user 0m3.044s sys 0m7.487s Signed-off-by: Stefan Beller --- builtin/submodule--helper.c | 28 +++++++++++++++++++++++++++- git-submodule.sh | 32 +++++++------------------------- 2 files changed, 34 insertions(+), 26 deletions(-) diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c index 610ec51..80d13f5 100644 --- a/builtin/submodule--helper.c +++ b/builtin/submodule--helper.c @@ -5,6 +5,9 @@ #include "pathspec.h" #include "dir.h" #include "utf8.h" +#include "submodule.h" +#include "submodule-config.h" +#include "string-list.h" static const struct cache_entry **ce_entries; static int ce_alloc, ce_used; @@ -101,6 +104,26 @@ static int module_list(int argc, const char **argv, const char *prefix) return 0; } +static int module_name(int argc, const char **argv, const char *prefix) +{ + const char *name; + const struct submodule *sub; + + if (argc != 1) + usage("git submodule--helper module_name \n"); + + gitmodules_config(); + sub = submodule_from_path(null_sha1, argv[0]); + + if (!sub) + die("No submodule mapping found in .gitmodules for path '%s'", argv[0]); + + name = sub->name; + printf("%s\n", name); + + return 0; +} + int cmd_submodule__helper(int argc, const char **argv, const char *prefix) { if (argc < 2) @@ -109,6 +132,9 @@ int cmd_submodule__helper(int argc, const char **argv, const char *prefix) if (!strcmp(argv[1], "module_list")) return module_list(argc - 1, argv + 1, prefix); + if (!strcmp(argv[1], "module_name")) + return module_name(argc - 2, argv + 2, prefix); + usage: - usage("git submodule--helper module_list\n"); + usage("git submodule--helper [module_list module_name]\n"); } diff --git a/git-submodule.sh b/git-submodule.sh index af9ecef..e6ff38d 100755 --- a/git-submodule.sh +++ b/git-submodule.sh @@ -178,24 +178,6 @@ get_submodule_config () { printf '%s' "${value:-$default}" } - -# -# Map submodule path to submodule name -# -# $1 = path -# -module_name() -{ - # Do we have "submodule..path = $1" defined in .gitmodules file? - sm_path="$1" - re=$(printf '%s\n' "$1" | sed -e 's/[].[^$\\*]/\\&/g') - name=$( git config -f .gitmodules --get-regexp '^submodule\..*\.path$' | - sed -n -e 's|^submodule\.\(.*\)\.path '"$re"'$|\1|p' ) - test -z "$name" && - die "$(eval_gettext "No submodule mapping found in .gitmodules for path '\$sm_path'")" - printf '%s\n' "$name" -} - # # Clone a submodule # @@ -498,7 +480,7 @@ cmd_foreach() then displaypath=$(relative_path "$sm_path") say "$(eval_gettext "Entering '\$prefix\$displaypath'")" - name=$(module_name "$sm_path") + name=$(git submodule--helper module_name "$sm_path") ( prefix="$prefix$sm_path/" clear_local_git_env @@ -554,7 +536,7 @@ cmd_init() while read mode sha1 stage sm_path do die_if_unmatched "$mode" - name=$(module_name "$sm_path") || exit + name=$(git submodule--helper module_name "$sm_path") || exit displaypath=$(relative_path "$sm_path") @@ -636,7 +618,7 @@ cmd_deinit() while read mode sha1 stage sm_path do die_if_unmatched "$mode" - name=$(module_name "$sm_path") || exit + name=$(git submodule--helper module_name "$sm_path") || exit displaypath=$(relative_path "$sm_path") @@ -758,7 +740,7 @@ cmd_update() echo >&2 "Skipping unmerged submodule $prefix$sm_path" continue fi - name=$(module_name "$sm_path") || exit + name=$(git submodule--helper module_name "$sm_path") || exit url=$(git config submodule."$name".url) branch=$(get_submodule_config "$name" branch master) if ! test -z "$update" @@ -1022,7 +1004,7 @@ cmd_summary() { # Respect the ignore setting for --for-status. if test -n "$for_status" then - name=$(module_name "$sm_path") + name=$(git submodule--helper module_name "$sm_path") ignore_config=$(get_submodule_config "$name" ignore none) test $status != A && test $ignore_config = all && continue fi @@ -1184,7 +1166,7 @@ cmd_status() while read mode sha1 stage sm_path do die_if_unmatched "$mode" - name=$(module_name "$sm_path") || exit + name=$(git submodule--helper module_name "$sm_path") || exit url=$(git config submodule."$name".url) displaypath=$(relative_path "$prefix$sm_path") if test "$stage" = U @@ -1261,7 +1243,7 @@ cmd_sync() while read mode sha1 stage sm_path do die_if_unmatched "$mode" - name=$(module_name "$sm_path") + name=$(git submodule--helper module_name "$sm_path") url=$(git config -f .gitmodules --get submodule."$name".url) # Possibly a url relative to parent -- 2.5.0.330.g130be8e.dirty