From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Buchacher Subject: [PATCH] commit: allow partial commits with relative paths Date: Fri, 29 Jul 2011 15:35:51 +0200 Message-ID: <20110729133551.GA8707@toss.lan> References: <19b908142567fcfafe4da3d0fd60b134d30c613a.1311579663.git.git@drmicha.warpmail.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: git@vger.kernel.org, Reuben Thomas , Junio C Hamano To: Michael J Gruber X-From: git-owner@vger.kernel.org Fri Jul 29 15:36:03 2011 Return-path: Envelope-to: gcvg-git-2@lo.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QmnEN-0005JY-Nl for gcvg-git-2@lo.gmane.org; Fri, 29 Jul 2011 15:36:00 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754161Ab1G2Nfz (ORCPT ); Fri, 29 Jul 2011 09:35:55 -0400 Received: from bsmtp4.bon.at ([195.3.86.186]:29945 "EHLO bsmtp.bon.at" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752960Ab1G2Nfy (ORCPT ); Fri, 29 Jul 2011 09:35:54 -0400 Received: from localhost (unknown [80.123.242.182]) by bsmtp.bon.at (Postfix) with ESMTP id 06E67130055; Fri, 29 Jul 2011 15:35:51 +0200 (CEST) Content-Disposition: inline In-Reply-To: <19b908142567fcfafe4da3d0fd60b134d30c613a.1311579663.git.git@drmicha.warpmail.net> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: In order to do partial commits, git-commit overlays a tree on the cache and checks pathspecs against the result. Currently, the overlaying is done using "prefix" which prevents relative pathspecs with ".." and absolute pathspec from matching when they refer to files not under "prefix" and absent from the index, but still in the tree (i.e. files staged for removal). Instead, determine the maximal common prefix for all specified paths using the pathspec_prefix() routine from ls-files.c. Any use of global variables is removed from pathspec_prefix() so that it can be called from commit.c. Reported-by: Reuben Thomas Analyzed-by: Michael J Gruber Signed-off-by: Clemens Buchacher On Mon, Jul 25, 2011 at 09:42:10AM +0200, Michael J Gruber wrote: > > Overlay the full tree instead. That is one option. On the other hand, ls-files already provides the function we need to do this properly. With your permission I am stealing your commit message. Clemens --- builtin/commit.c | 6 ++++-- builtin/ls-files.c | 38 ++------------------------------------ cache.h | 1 + setup.c | 32 ++++++++++++++++++++++++++++++++ 4 files changed, 39 insertions(+), 38 deletions(-) diff --git a/builtin/commit.c b/builtin/commit.c index a16d00b..c2db12a 100644 --- a/builtin/commit.c +++ b/builtin/commit.c @@ -256,8 +256,10 @@ static int list_paths(struct string_list *list, const char *with_tree, ; m = xcalloc(1, i); - if (with_tree) - overlay_tree_on_cache(with_tree, prefix); + if (with_tree) { + const char *max_prefix = pathspec_prefix(prefix, pattern); + overlay_tree_on_cache(with_tree, max_prefix); + } for (i = 0; i < active_nr; i++) { struct cache_entry *ce = active_cache[i]; diff --git a/builtin/ls-files.c b/builtin/ls-files.c index 72b986f..fef5642 100644 --- a/builtin/ls-files.c +++ b/builtin/ls-files.c @@ -276,41 +276,6 @@ static void prune_cache(const char *prefix) active_nr = last; } -static const char *pathspec_prefix(const char *prefix) -{ - const char **p, *n, *prev; - unsigned long max; - - if (!pathspec) { - max_prefix_len = prefix ? strlen(prefix) : 0; - return prefix; - } - - prev = NULL; - max = PATH_MAX; - for (p = pathspec; (n = *p) != NULL; p++) { - int i, len = 0; - for (i = 0; i < max; i++) { - char c = n[i]; - if (prev && prev[i] != c) - break; - if (!c || c == '*' || c == '?') - break; - if (c == '/') - len = i+1; - } - prev = n; - if (len < max) { - max = len; - if (!max) - break; - } - } - - max_prefix_len = max; - return max ? xmemdupz(prev, max) : NULL; -} - static void strip_trailing_slash_from_submodules(void) { const char **p; @@ -581,7 +546,8 @@ int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix) strip_trailing_slash_from_submodules(); /* Find common prefix for all pathspec's */ - max_prefix = pathspec_prefix(prefix); + max_prefix = pathspec_prefix(prefix, pathspec); + max_prefix_len = max_prefix ? strlen(max_prefix) : 0; /* Treat unmatching pathspec elements as errors */ if (pathspec && error_unmatch) { diff --git a/cache.h b/cache.h index 86518fb..dd3edaa 100644 --- a/cache.h +++ b/cache.h @@ -441,6 +441,7 @@ extern void set_git_work_tree(const char *tree); #define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES" extern const char **get_pathspec(const char *prefix, const char **pathspec); +extern const char *pathspec_prefix(const char *prefix, const char **pathspec); extern void setup_work_tree(void); extern const char *setup_git_directory_gently(int *); extern const char *setup_git_directory(void); diff --git a/setup.c b/setup.c index 5ea5502..2c51a9a 100644 --- a/setup.c +++ b/setup.c @@ -264,6 +264,38 @@ const char **get_pathspec(const char *prefix, const char **pathspec) return pathspec; } +const char *pathspec_prefix(const char *prefix, const char **pathspec) +{ + const char **p, *n, *prev; + unsigned long max; + + if (!pathspec) + return prefix ? xmemdupz(prefix, strlen(prefix)) : NULL; + + prev = NULL; + max = PATH_MAX; + for (p = pathspec; (n = *p) != NULL; p++) { + int i, len = 0; + for (i = 0; i < max; i++) { + char c = n[i]; + if (prev && prev[i] != c) + break; + if (!c || c == '*' || c == '?') + break; + if (c == '/') + len = i+1; + } + prev = n; + if (len < max) { + max = len; + if (!max) + break; + } + } + + return max ? xmemdupz(prev, max) : NULL; +} + /* * Test if it looks like we're at a git directory. * We want to see: -- 1.7.3.1.105.g84915