From mboxrd@z Thu Jan 1 00:00:00 1970 From: Junio C Hamano Subject: [PATCH] Use core.filemode. Date: Wed, 12 Oct 2005 00:43:21 -0700 Message-ID: <7v1x2rji3q.fsf@assigned-by-dhcp.cox.net> References: <20051008180023.GC28875@diku.dk> <7vfyrbrgdw.fsf@assigned-by-dhcp.cox.net> <20051008213612.GA5794@steel.home> <7vzmpjoa32.fsf@assigned-by-dhcp.cox.net> <7vu0fpbz43.fsf@assigned-by-dhcp.cox.net> <7vvf03r36y.fsf@assigned-by-dhcp.cox.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-From: git-owner@vger.kernel.org Wed Oct 12 09:44:50 2005 Return-path: Received: from vger.kernel.org ([209.132.176.167]) by ciao.gmane.org with esmtp (Exim 4.43) id 1EPbH5-0006BK-3w for gcvg-git@gmane.org; Wed, 12 Oct 2005 09:43:43 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751343AbVJLHnX (ORCPT ); Wed, 12 Oct 2005 03:43:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751342AbVJLHnX (ORCPT ); Wed, 12 Oct 2005 03:43:23 -0400 Received: from fed1rmmtao06.cox.net ([68.230.241.33]:5260 "EHLO fed1rmmtao06.cox.net") by vger.kernel.org with ESMTP id S1751343AbVJLHnX (ORCPT ); Wed, 12 Oct 2005 03:43:23 -0400 Received: from assigned-by-dhcp.cox.net ([68.4.9.127]) by fed1rmmtao06.cox.net (InterMail vM.6.01.05.02 201-2131-123-102-20050715) with ESMTP id <20051012074300.GXQS24014.fed1rmmtao06.cox.net@assigned-by-dhcp.cox.net>; Wed, 12 Oct 2005 03:43:00 -0400 To: git@vger.kernel.org User-Agent: Gnus/5.110004 (No Gnus v0.4) Emacs/21.4 (gnu/linux) Sender: git-owner@vger.kernel.org Precedence: bulk X-Mailing-List: git@vger.kernel.org Archived-At: Junio C Hamano writes: > This is a WIP to implement update-index that does not care the > filesystem mode change... I finished this one and have it in the master branch. I'd appreciate feedback from folks on affected platforms, most notably Cygwin. It might not be a bad idea to populate a new repository with a default .git/config file that sets "core.filemode = false" on Cygwin platform, using the templates mechanism. People on NTFS might not like that -- I do not know. Anyway, that is a separate topic. -- >8 -- cut here -- >8 -- With "[core] filemode = false", you can tell git to ignore differences in the working tree file only in executable bit. * "git-update-index --refresh" does not say "needs update" if index entry and working tree file differs only in executable bit. * "git-update-index" on an existing path takes executable bit from the existing index entry, if the path and index entry are both regular files. * "git-diff-files" and "git-diff-index" without --cached flag pretend the path on the filesystem has the same executable bit as the existing index entry, if the path and index entry are both regular files. If you are on a filesystem with unreliable mode bits, you may need to force the executable bit after registering the path in the index. * "git-update-index --chmod=+x foo" flips the executable bit of the index file entry for path "foo" on. Use "--chmod=-x" to flip it off. Note that --chmod only works in index file and does not look at nor update the working tree. So if you are on a filesystem and do not have working executable bit, you would do: 1. set the appropriate .git/config option; 2. "git-update-index --add new-file.c" 3. "git-ls-files --stage new-file.c" to see if it has the desired mode bits. If not, e.g. to drop executable bit picked up from the filesystem, say "git-update-index --chmod=-x new-file.c". Signed-off-by: Junio C Hamano --- diff-files.c | 10 ++++++++-- diff-index.c | 11 +++++++++-- read-cache.c | 12 ++++++++---- update-index.c | 46 +++++++++++++++++++++++++++++++++++++++++++++- 4 files changed, 70 insertions(+), 9 deletions(-) applies-to: 8c8a7c6987bcb0eeab559a58170fccd767ce0218 3e09cdfd114651fc61656dbd45d5ec3d9352cb2b diff --git a/diff-files.c b/diff-files.c index 96d2c7f..8a8f9b6 100644 --- a/diff-files.c +++ b/diff-files.c @@ -81,7 +81,7 @@ int main(int argc, const char **argv) for (i = 0; i < entries; i++) { struct stat st; - unsigned int oldmode; + unsigned int oldmode, newmode; struct cache_entry *ce = active_cache[i]; int changed; @@ -111,7 +111,13 @@ int main(int argc, const char **argv) if (!changed && !diff_options.find_copies_harder) continue; oldmode = ntohl(ce->ce_mode); - show_modified(oldmode, DIFF_FILE_CANON_MODE(st.st_mode), + + newmode = DIFF_FILE_CANON_MODE(st.st_mode); + if (!trust_executable_bit && + S_ISREG(newmode) && S_ISREG(oldmode) && + ((newmode ^ oldmode) == 0111)) + newmode = oldmode; + show_modified(oldmode, newmode, ce->sha1, (changed ? null_sha1 : ce->sha1), ce->name); } diff --git a/diff-index.c b/diff-index.c index 62b36cc..c9a9f4c 100644 --- a/diff-index.c +++ b/diff-index.c @@ -15,7 +15,7 @@ static void show_file(const char *prefix } static int get_stat_data(struct cache_entry *ce, - unsigned char **sha1p, unsigned int *modep) + unsigned char ** sha1p, unsigned int *modep) { unsigned char *sha1 = ce->sha1; unsigned int mode = ce->ce_mode; @@ -35,6 +35,10 @@ static int get_stat_data(struct cache_en changed = ce_match_stat(ce, &st); if (changed) { mode = create_ce_mode(st.st_mode); + if (!trust_executable_bit && + S_ISREG(mode) && S_ISREG(ce->ce_mode) && + ((mode ^ ce->ce_mode) == 0111)) + mode = ce->ce_mode; sha1 = no_sha1; } } @@ -49,7 +53,9 @@ static void show_new_file(struct cache_e unsigned char *sha1; unsigned int mode; - /* New file in the index: it might actually be different in the working copy */ + /* New file in the index: it might actually be different in + * the working copy. + */ if (get_stat_data(new, &sha1, &mode) < 0) return; @@ -174,6 +180,7 @@ int main(int argc, const char **argv) int allow_options = 1; int i; + git_config(git_default_config); diff_setup(&diff_options); for (i = 1; i < argc; i++) { const char *arg = argv[i]; diff --git a/read-cache.c b/read-cache.c index c7f3b26..4ed369a 100644 --- a/read-cache.c +++ b/read-cache.c @@ -36,8 +36,11 @@ int ce_match_stat(struct cache_entry *ce switch (ntohl(ce->ce_mode) & S_IFMT) { case S_IFREG: changed |= !S_ISREG(st->st_mode) ? TYPE_CHANGED : 0; - /* We consider only the owner x bit to be relevant for "mode changes" */ - if (0100 & (ntohl(ce->ce_mode) ^ st->st_mode)) + /* We consider only the owner x bit to be relevant for + * "mode changes" + */ + if (trust_executable_bit && + (0100 & (ntohl(ce->ce_mode) ^ st->st_mode))) changed |= MODE_CHANGED; break; case S_IFLNK: @@ -393,7 +396,7 @@ int add_cache_entry(struct cache_entry * int skip_df_check = option & ADD_CACHE_SKIP_DFCHECK; pos = cache_name_pos(ce->name, ntohs(ce->ce_flags)); - /* existing match? Just replace it */ + /* existing match? Just replace it. */ if (pos >= 0) { active_cache_changed = 1; active_cache[pos] = ce; @@ -416,7 +419,8 @@ int add_cache_entry(struct cache_entry * if (!ok_to_add) return -1; - if (!skip_df_check && check_file_directory_conflict(ce, pos, ok_to_replace)) { + if (!skip_df_check && + check_file_directory_conflict(ce, pos, ok_to_replace)) { if (!ok_to_replace) return -1; pos = cache_name_pos(ce->name, ntohs(ce->ce_flags)); diff --git a/update-index.c b/update-index.c index 01b4088..1eeb45d 100644 --- a/update-index.c +++ b/update-index.c @@ -67,13 +67,23 @@ static int add_file_to_cache(const char return error("lstat(\"%s\"): %s", path, strerror(errno)); } + namelen = strlen(path); size = cache_entry_size(namelen); ce = xmalloc(size); memset(ce, 0, size); memcpy(ce->name, path, namelen); fill_stat_cache_info(ce, &st); + ce->ce_mode = create_ce_mode(st.st_mode); + if (!trust_executable_bit) { + /* If there is an existing entry, pick the mode bits + * from it. + */ + int pos = cache_name_pos(path, namelen); + if (0 <= pos) + ce->ce_mode = active_cache[pos]->ce_mode; + } ce->ce_flags = htons(namelen); if (index_path(ce->sha1, path, &st, !info_only)) @@ -253,8 +263,32 @@ static int add_cacheinfo(const char *arg return add_cache_entry(ce, option); } -static struct cache_file cache_file; +static int chmod_path(int flip, const char *path) +{ + int pos; + struct cache_entry *ce; + unsigned int mode; + + pos = cache_name_pos(path, strlen(path)); + if (pos < 0) + return -1; + ce = active_cache[pos]; + mode = ntohl(ce->ce_mode); + if (!S_ISREG(mode)) + return -1; + switch (flip) { + case '+': + ce->ce_mode |= htonl(0111); break; + case '-': + ce->ce_mode &= htonl(~0111); break; + default: + return -1; + } + active_cache_changed = 1; + return 0; +} +static struct cache_file cache_file; static void update_one(const char *path, const char *prefix, int prefix_length) { @@ -328,6 +362,8 @@ int main(int argc, const char **argv) const char *prefix = setup_git_directory(); int prefix_length = prefix ? strlen(prefix) : 0; + git_config(git_default_config); + newfd = hold_index_file_for_update(&cache_file, get_index_file()); if (newfd < 0) die("unable to create new cachefile"); @@ -376,6 +412,14 @@ int main(int argc, const char **argv) i += 3; continue; } + if (!strcmp(path, "--chmod=-x") || + !strcmp(path, "--chmod=+x")) { + if (argc <= i+1) + die("git-update-index: %s ", path); + if (chmod_path(path[8], argv[++i])) + die("git-update-index: %s cannot chmod %s", path, argv[i]); + continue; + } if (!strcmp(path, "--info-only")) { info_only = 1; continue; --- 0.99.8.GIT