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Nguyễn Thái Ngọc Duy 1e8fef609e untracked cache: guard and disable on system changes 
If the user enables untracked cache, then

 - move worktree to an unsupported filesystem
 - or simply upgrade OS
 - or move the whole (portable) disk from one machine to another
 - or access a shared fs from another machine

there's no guarantee that untracked cache can still function properly.
Record the worktree location and OS footprint in the cache. If it
changes, err on the safe side and disable the cache. The user can
'update-index --untracked-cache' again to make sure all conditions are
met.

This adds a new requirement that setup_git_directory* must be called
before read_cache() because we need worktree location by then, or the
cache is dropped.

This change does not cover all bases, you can fool it if you try
hard. The point is to stop accidents.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Helped-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-03-12 13:45:18 -07:00
block-sha1
builtin untracked cache: guard and disable on system changes 2015-03-12 13:45:18 -07:00
compat mingw32: add uname() 2015-03-12 13:45:18 -07:00
contrib Merge branch 'av/wincred-with-at-in-username-fix' into maint 2015-03-05 13:13:04 -08:00
Documentation untracked cache: guard and disable on system changes 2015-03-12 13:45:18 -07:00
ewah ewah: add convenient wrapper ewah_serialize_strbuf() 2015-03-12 13:45:16 -07:00
git-gui
gitk-git
gitweb
mergetools
perl Merge branch 'ew/svn-maint-fixes' into maint 2015-03-06 14:57:55 -08:00
po
ppc
t t7063: tests for untracked cache 2015-03-12 13:45:18 -07:00
templates
vcs-svn
xdiff
.gitattributes
.gitignore t7063: tests for untracked cache 2015-03-12 13:45:18 -07:00
.mailmap
abspath.c
aclocal.m4
advice.c
advice.h
alias.c
alloc.c
archive-tar.c
archive-zip.c
archive.c
archive.h
argv-array.c
argv-array.h
attr.c
attr.h
base85.c
bisect.c
bisect.h
blob.c
blob.h
branch.c
branch.h
builtin.h
bulk-checkin.c
bulk-checkin.h
bundle.c
bundle.h
cache-tree.c
cache-tree.h
cache.h untracked cache: mark index dirty if untracked cache is updated 2015-03-12 13:45:17 -07:00
check-builtins.sh
check-racy.c
check_bindir
color.c
color.h
column.c
column.h
combine-diff.c
command-list.txt
commit-slab.h
commit.c
commit.h
config.c Merge branch 'jk/config-no-ungetc-eof' into maint 2015-03-05 13:13:00 -08:00
config.mak.in
config.mak.uname
configure.ac
connect.c Merge branch 'rs/simple-cleanups' into maint 2015-03-06 14:57:57 -08:00
connect.h
connected.c
connected.h
convert.c
convert.h
copy.c
COPYING
credential-cache--daemon.c
credential-cache.c
credential-store.c
credential.c
credential.h
csum-file.c
csum-file.h
ctype.c kwset: use unsigned char to store values with high-bit set 2015-03-02 12:32:24 -08:00
daemon.c Merge branch 'jk/daemon-interpolate' 2015-03-03 14:37:06 -08:00
date.c
decorate.c
decorate.h
delta.h
diff-delta.c
diff-lib.c
diff-no-index.c
diff.c Merge branch 'mk/diff-shortstat-dirstat-fix' 2015-03-06 15:02:29 -08:00
diff.h
diffcore-break.c
diffcore-delta.c
diffcore-order.c
diffcore-pickaxe.c
diffcore-rename.c Merge branch 'jk/diffcore-rename-duplicate' 2015-03-10 13:52:39 -07:00
diffcore.h
dir.c untracked cache: guard and disable on system changes 2015-03-12 13:45:18 -07:00
dir.h untracked cache: guard and disable on system changes 2015-03-12 13:45:18 -07:00
editor.c
entry.c
environment.c
exec_cmd.c
exec_cmd.h
fast-import.c Merge branch 'jk/fast-import-die-nicely-fix' into maint 2015-03-05 13:13:13 -08:00
fetch-pack.c
fetch-pack.h
fmt-merge-msg.h
fsck.c
fsck.h
generate-cmdlist.sh
gettext.c gettext.c: move get_preferred_languages() from http.c 2015-02-26 14:09:20 -08:00
gettext.h Merge branch 'ye/http-accept-language' 2015-03-06 15:02:25 -08:00
git-add--interactive.perl
git-am.sh
git-archimport.perl
git-bisect.sh
git-compat-util.h untracked cache: guard and disable on system changes 2015-03-12 13:45:18 -07:00
git-cvsexportcommit.perl
git-cvsimport.perl
git-cvsserver.perl
git-difftool--helper.sh
git-difftool.perl
git-filter-branch.sh
git-instaweb.sh
git-merge-octopus.sh
git-merge-one-file.sh
git-merge-resolve.sh
git-mergetool--lib.sh
git-mergetool.sh
git-p4.py
git-parse-remote.sh
git-pull.sh
git-quiltimport.sh
git-rebase--am.sh
git-rebase--interactive.sh Merge branch 'ks/rebase-i-abbrev' into maint 2015-03-05 13:12:56 -08:00
git-rebase--merge.sh
git-rebase.sh
git-relink.perl
git-remote-testgit.sh
git-request-pull.sh
git-send-email.perl Merge branch 'km/send-email-getopt-long-workarounds' 2015-03-03 14:37:03 -08:00
git-sh-i18n.sh
git-sh-setup.sh
git-stash.sh
git-submodule.sh Merge branch 'ps/submodule-sanitize-path-upon-add' into maint 2015-03-05 13:13:10 -08:00
git-svn.perl git-svn: lazy load some modules 2015-02-26 20:19:21 +00:00
GIT-VERSION-GEN Git 2.3.2 2015-03-06 14:58:14 -08:00
git-web--browse.sh
git.c
git.rc
git.spec.in
gpg-interface.c
gpg-interface.h
graph.c
graph.h
grep.c
grep.h
hashmap.c
hashmap.h
help.c
help.h
hex.c Merge branch 'sb/hex-object-name-is-at-most-41-bytes-long' into maint 2015-03-05 13:12:55 -08:00
http-backend.c
http-fetch.c
http-push.c
http-walker.c
http.c Merge branch 'ye/http-accept-language' 2015-03-06 15:02:25 -08:00
http.h
ident.c
imap-send.c
INSTALL
khash.h
kwset.c kwset: use unsigned char to store values with high-bit set 2015-03-02 12:32:24 -08:00
kwset.h kwset: use unsigned char to store values with high-bit set 2015-03-02 12:32:24 -08:00
levenshtein.c
levenshtein.h
LGPL-2.1
line-log.c
line-log.h
line-range.c
line-range.h
list-objects.c
list-objects.h
ll-merge.c
ll-merge.h
lockfile.c
lockfile.h
log-tree.c
log-tree.h
mailmap.c
mailmap.h
Makefile t7063: tests for untracked cache 2015-03-12 13:45:18 -07:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c
merge-recursive.h
merge.c
mergesort.c
mergesort.h
name-hash.c
notes-cache.c
notes-cache.h
notes-merge.c
notes-merge.h
notes-utils.c
notes-utils.h
notes.c
notes.h
object.c
object.h
pack-bitmap-write.c
pack-bitmap.c
pack-bitmap.h
pack-check.c
pack-objects.c
pack-objects.h
pack-revindex.c
pack-revindex.h
pack-write.c
pack.h
pager.c Merge branch 'jk/decimal-width-for-uintmax' into maint 2015-03-05 13:12:59 -08:00
parse-options-cb.c
parse-options.c
parse-options.h
patch-delta.c
patch-ids.c
patch-ids.h
path.c
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c
pretty.c Merge branch 'rs/simple-cleanups' into maint 2015-03-06 14:57:57 -08:00
prio-queue.c
prio-queue.h
progress.c
progress.h
prompt.c
prompt.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c untracked cache: mark index dirty if untracked cache is updated 2015-03-12 13:45:17 -07:00
README
reflog-walk.c
reflog-walk.h
refs.c Merge branch 'mh/expire-updateref-fixes' 2015-03-10 13:52:40 -07:00
refs.h
RelNotes Post 2.3 cycle (batch #9) 2015-03-10 13:53:49 -07:00
remote-curl.c
remote-testsvn.c
remote.c
remote.h
replace_object.c
rerere.c
rerere.h
resolve-undo.c
resolve-undo.h
revision.c
revision.h
run-command.c
run-command.h
send-pack.c
send-pack.h
sequencer.c
sequencer.h
server-info.c
setup.c
sh-i18n--envsubst.c
sha1-array.c
sha1-array.h
sha1-lookup.c
sha1-lookup.h
sha1_file.c Merge branch 'jk/prune-mtime' into maint 2015-03-05 13:13:08 -08:00
sha1_name.c Merge branch 'rs/simple-cleanups' into maint 2015-03-06 14:57:57 -08:00
shallow.c
shell.c
shortlog.h
show-index.c
sideband.c
sideband.h
sigchain.c
sigchain.h
split-index.c ewah: add convenient wrapper ewah_serialize_strbuf() 2015-03-12 13:45:16 -07:00
split-index.h
strbuf.c
strbuf.h
streaming.c
streaming.h
string-list.c
string-list.h
submodule.c
submodule.h
symlinks.c
tag.c
tag.h
tar.h
test-chmtime.c
test-config.c
test-ctype.c
test-date.c
test-delta.c
test-dump-cache-tree.c
test-dump-split-index.c
test-dump-untracked-cache.c untracked cache: guard and disable on system changes 2015-03-12 13:45:18 -07:00
test-genrandom.c
test-hashmap.c
test-index-version.c
test-line-buffer.c
test-match-trees.c
test-mergesort.c
test-mktemp.c
test-parse-options.c
test-path-utils.c
test-prio-queue.c
test-read-cache.c
test-regex.c
test-revision-walking.c
test-run-command.c
test-scrap-cache-tree.c
test-sha1-array.c
test-sha1.c
test-sha1.sh
test-sigchain.c
test-string-list.c
test-subprocess.c
test-svn-fe.c
test-urlmatch-normalization.c
test-wildmatch.c
thread-utils.c
thread-utils.h
trace.c
trace.h
trailer.c
trailer.h
transport-helper.c Merge branch 'jc/push-cert' into maint 2015-03-05 13:12:58 -08:00
transport.c
transport.h
tree-diff.c
tree-walk.c
tree-walk.h
tree.c
tree.h
unicode_width.h
unimplemented.sh
unix-socket.c
unix-socket.h
unpack-trees.c untracked cache: invalidate at index addition or removal 2015-03-12 13:45:16 -07:00
unpack-trees.h
update_unicode.sh
upload-pack.c
url.c
url.h
urlmatch.c
urlmatch.h
usage.c
userdiff.c
userdiff.h
utf8.c
utf8.h
varint.c
varint.h
version.c
version.h
versioncmp.c
walker.c
walker.h
wildmatch.c
wildmatch.h
wrap-for-bin.sh
wrapper.c Merge branch 'jc/max-io-size-and-ssize-max' 2015-02-25 15:40:13 -08:00
write_or_die.c
ws.c
wt-status.c status: enable untracked cache 2015-03-12 13:45:17 -07:00
wt-status.h
xdiff-interface.c
xdiff-interface.h
zlib.c

README 

////////////////////////////////////////////////////////////////

	Git - the stupid content tracker

////////////////////////////////////////////////////////////////

"git" can mean anything, depending on your mood.

 - random three-letter combination that is pronounceable, and not
   actually used by any common UNIX command.  The fact that it is a
   mispronunciation of "get" may or may not be relevant.
 - stupid. contemptible and despicable. simple. Take your pick from the
   dictionary of slang.
 - "global information tracker": you're in a good mood, and it actually
   works for you. Angels sing, and a light suddenly fills the room.
 - "goddamn idiotic truckload of sh*t": when it breaks

Git is a fast, scalable, distributed revision control system with an
unusually rich command set that provides both high-level operations
and full access to internals.

Git is an Open Source project covered by the GNU General Public
License version 2 (some parts of it are under different licenses,
compatible with the GPLv2). It was originally written by Linus
Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

See Documentation/gittutorial.txt to get started, then see
Documentation/giteveryday.txt for a useful minimum set of commands, and
Documentation/git-commandname.txt for documentation of each command.
If git has been correctly installed, then the tutorial can also be
read with "man gittutorial" or "git help tutorial", and the
documentation of each command with "man git-commandname" or "git help
commandname".

CVS users may also want to read Documentation/gitcvs-migration.txt
("man gitcvs-migration" or "git help cvs-migration" if git is
installed).

Many Git online resources are accessible from http://git-scm.com/
including full documentation and Git related tools.

The user discussion and development of Git take place on the Git
mailing list -- everyone is welcome to post bug reports, feature
requests, comments and patches to git@vger.kernel.org (read
Documentation/SubmittingPatches for instructions on patch submission).
To subscribe to the list, send an email with just "subscribe git" in
the body to majordomo@vger.kernel.org. The mailing list archives are
available at http://news.gmane.org/gmane.comp.version-control.git/,
http://marc.info/?l=git and other archival sites.

The maintainer frequently sends the "What's cooking" reports that
list the current status of various development topics to the mailing
list.  The discussion following them give a good reference for
project status, development direction and remaining tasks.