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Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Overall time saving on "git status" is about 40% in the best case
scenario, removing ..collect_untracked() as the most time consuming
function. read and refresh index operations are now at the top (which
should drop when index-helper and/or watchman support is added). More
numbers and analysis below.
webkit.git
==========
169k files. 6k dirs. Lots of test data (i.e. not touched most of the
time)
Base status
-----------
Index version 4 in split index mode and cache-tree populated. No
untracked cache. It shows how time is consumed by "git status". The
same settings are used for other repos below.
18:28:10.199679 builtin/commit.c:1394 performance: 0.000000451 s: cmd_status:setup
18:28:10.474847 read-cache.c:1407 performance: 0.274873831 s: read_index
18:28:10.475295 read-cache.c:1407 performance: 0.000000656 s: read_index
18:28:10.728443 preload-index.c:131 performance: 0.253147487 s: read_index_preload
18:28:10.741422 read-cache.c:1254 performance: 0.012868340 s: refresh_index
18:28:10.752300 wt-status.c:623 performance: 0.010421357 s: wt_status_collect_changes_worktree
18:28:10.762069 wt-status.c:629 performance: 0.009644748 s: wt_status_collect_changes_index
18:28:11.601019 wt-status.c:632 performance: 0.838859547 s: wt_status_collect_untracked
18:28:11.605939 builtin/commit.c:1421 performance: 0.004835004 s: cmd_status:update_index
18:28:11.606580 trace.c:415 performance: 1.407878388 s: git command: 'git' 'status'
Populating status
-----------------
This is after enabling untracked cache and the cache is still empty.
We see a slight increase in .._collect_untracked() and update_index
(because new cache has to be written to $GIT_DIR/index).
18:28:18.915213 builtin/commit.c:1394 performance: 0.000000326 s: cmd_status:setup
18:28:19.197364 read-cache.c:1407 performance: 0.281901416 s: read_index
18:28:19.197754 read-cache.c:1407 performance: 0.000000546 s: read_index
18:28:19.451355 preload-index.c:131 performance: 0.253599607 s: read_index_preload
18:28:19.464400 read-cache.c:1254 performance: 0.012935336 s: refresh_index
18:28:19.475115 wt-status.c:623 performance: 0.010236920 s: wt_status_collect_changes_worktree
18:28:19.486022 wt-status.c:629 performance: 0.010801685 s: wt_status_collect_changes_index
18:28:20.362660 wt-status.c:632 performance: 0.876551366 s: wt_status_collect_untracked
18:28:20.396199 builtin/commit.c:1421 performance: 0.033447969 s: cmd_status:update_index
18:28:20.396939 trace.c:415 performance: 1.482695902 s: git command: 'git' 'status'
Populated status
----------------
After the cache is populated, wt_status_collect_untracked() drops 82%
from 0.838s to 0.144s. Overall time drops 45%. Top offenders are now
read_index() and read_index_preload().
18:28:20.408605 builtin/commit.c:1394 performance: 0.000000457 s: cmd_status:setup
18:28:20.692864 read-cache.c:1407 performance: 0.283980458 s: read_index
18:28:20.693273 read-cache.c:1407 performance: 0.000000661 s: read_index
18:28:20.958814 preload-index.c:131 performance: 0.265540254 s: read_index_preload
18:28:20.972375 read-cache.c:1254 performance: 0.013437429 s: refresh_index
18:28:20.983959 wt-status.c:623 performance: 0.011146646 s: wt_status_collect_changes_worktree
18:28:20.993948 wt-status.c:629 performance: 0.009879094 s: wt_status_collect_changes_index
18:28:21.138125 wt-status.c:632 performance: 0.144084737 s: wt_status_collect_untracked
18:28:21.173678 builtin/commit.c:1421 performance: 0.035463949 s: cmd_status:update_index
18:28:21.174251 trace.c:415 performance: 0.766707355 s: git command: 'git' 'status'
gentoo-x86.git
==============
This repository is a strange one with a balanced, wide and shallow
worktree (about 100k files and 23k dirs) and no .gitignore in
worktree. .._collect_untracked() time drops 88%, total time drops 56%.
Base status
-----------
18:20:40.828642 builtin/commit.c:1394 performance: 0.000000496 s: cmd_status:setup
18:20:41.027233 read-cache.c:1407 performance: 0.198130532 s: read_index
18:20:41.027670 read-cache.c:1407 performance: 0.000000581 s: read_index
18:20:41.171716 preload-index.c:131 performance: 0.144045594 s: read_index_preload
18:20:41.179171 read-cache.c:1254 performance: 0.007320424 s: refresh_index
18:20:41.185785 wt-status.c:623 performance: 0.006144638 s: wt_status_collect_changes_worktree
18:20:41.192701 wt-status.c:629 performance: 0.006780184 s: wt_status_collect_changes_index
18:20:41.991723 wt-status.c:632 performance: 0.798927029 s: wt_status_collect_untracked
18:20:41.994664 builtin/commit.c:1421 performance: 0.002852772 s: cmd_status:update_index
18:20:41.995458 trace.c:415 performance: 1.168427502 s: git command: 'git' 'status'
Populating status
-----------------
18:20:48.968848 builtin/commit.c:1394 performance: 0.000000380 s: cmd_status:setup
18:20:49.172918 read-cache.c:1407 performance: 0.203734214 s: read_index
18:20:49.173341 read-cache.c:1407 performance: 0.000000562 s: read_index
18:20:49.320013 preload-index.c:131 performance: 0.146671391 s: read_index_preload
18:20:49.328039 read-cache.c:1254 performance: 0.007921957 s: refresh_index
18:20:49.334680 wt-status.c:623 performance: 0.006172020 s: wt_status_collect_changes_worktree
18:20:49.342526 wt-status.c:629 performance: 0.007731746 s: wt_status_collect_changes_index
18:20:50.257510 wt-status.c:632 performance: 0.914864222 s: wt_status_collect_untracked
18:20:50.338371 builtin/commit.c:1421 performance: 0.080776477 s: cmd_status:update_index
18:20:50.338900 trace.c:415 performance: 1.371462446 s: git command: 'git' 'status'
Populated status
----------------
18:20:50.351160 builtin/commit.c:1394 performance: 0.000000571 s: cmd_status:setup
18:20:50.577358 read-cache.c:1407 performance: 0.225917338 s: read_index
18:20:50.577794 read-cache.c:1407 performance: 0.000000617 s: read_index
18:20:50.734140 preload-index.c:131 performance: 0.156345564 s: read_index_preload
18:20:50.745717 read-cache.c:1254 performance: 0.011463075 s: refresh_index
18:20:50.755176 wt-status.c:623 performance: 0.008877929 s: wt_status_collect_changes_worktree
18:20:50.763768 wt-status.c:629 performance: 0.008471633 s: wt_status_collect_changes_index
18:20:50.854885 wt-status.c:632 performance: 0.090988721 s: wt_status_collect_untracked
18:20:50.857765 builtin/commit.c:1421 performance: 0.002789097 s: cmd_status:update_index
18:20:50.858411 trace.c:415 performance: 0.508647673 s: git command: 'git' 'status'
linux-2.6
=========
Reference repo. Not too big. .._collect_status() drops 84%. Total time
drops 42%.
Base status
-----------
18:34:09.870122 builtin/commit.c:1394 performance: 0.000000385 s: cmd_status:setup
18:34:09.943218 read-cache.c:1407 performance: 0.072871177 s: read_index
18:34:09.943614 read-cache.c:1407 performance: 0.000000491 s: read_index
18:34:10.004364 preload-index.c:131 performance: 0.060748102 s: read_index_preload
18:34:10.008190 read-cache.c:1254 performance: 0.003714285 s: refresh_index
18:34:10.012087 wt-status.c:623 performance: 0.002775446 s: wt_status_collect_changes_worktree
18:34:10.016054 wt-status.c:629 performance: 0.003862140 s: wt_status_collect_changes_index
18:34:10.214747 wt-status.c:632 performance: 0.198604837 s: wt_status_collect_untracked
18:34:10.216102 builtin/commit.c:1421 performance: 0.001244166 s: cmd_status:update_index
18:34:10.216817 trace.c:415 performance: 0.347670735 s: git command: 'git' 'status'
Populating status
-----------------
18:34:16.595102 builtin/commit.c:1394 performance: 0.000000456 s: cmd_status:setup
18:34:16.666600 read-cache.c:1407 performance: 0.070992413 s: read_index
18:34:16.667012 read-cache.c:1407 performance: 0.000000606 s: read_index
18:34:16.729375 preload-index.c:131 performance: 0.062362492 s: read_index_preload
18:34:16.732565 read-cache.c:1254 performance: 0.003075517 s: refresh_index
18:34:16.736148 wt-status.c:623 performance: 0.002422201 s: wt_status_collect_changes_worktree
18:34:16.739990 wt-status.c:629 performance: 0.003746618 s: wt_status_collect_changes_index
18:34:16.948505 wt-status.c:632 performance: 0.208426710 s: wt_status_collect_untracked
18:34:16.961744 builtin/commit.c:1421 performance: 0.013151887 s: cmd_status:update_index
18:34:16.962233 trace.c:415 performance: 0.368537535 s: git command: 'git' 'status'
Populated status
----------------
18:34:16.970026 builtin/commit.c:1394 performance: 0.000000631 s: cmd_status:setup
18:34:17.046235 read-cache.c:1407 performance: 0.075904673 s: read_index
18:34:17.046644 read-cache.c:1407 performance: 0.000000681 s: read_index
18:34:17.113564 preload-index.c:131 performance: 0.066920253 s: read_index_preload
18:34:17.117281 read-cache.c:1254 performance: 0.003604055 s: refresh_index
18:34:17.121115 wt-status.c:623 performance: 0.002508345 s: wt_status_collect_changes_worktree
18:34:17.125089 wt-status.c:629 performance: 0.003871636 s: wt_status_collect_changes_index
18:34:17.156089 wt-status.c:632 performance: 0.030895703 s: wt_status_collect_untracked
18:34:17.169861 builtin/commit.c:1421 performance: 0.013686404 s: cmd_status:update_index
18:34:17.170391 trace.c:415 performance: 0.201474531 s: git command: 'git' 'status'
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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update_index_if_able() is moved down so that the updated untracked
cache could be written out.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Various issues around "reflog expire", e.g. using --updateref when
expiring a reflog for a symbolic reference, have been corrected
and/or made saner.
* mh/expire-updateref-fixes:
reflog_expire(): never update a reference to null_sha1
reflog_expire(): ignore --updateref for symbolic references
reflog: improve and update documentation
struct ref_lock: delete the force_write member
lock_ref_sha1_basic(): do not set force_write for missing references
write_ref_sha1(): move write elision test to callers
write_ref_sha1(): remove check for lock == NULL
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The prompt string "remove?" used when "git clean -i" asks the user
if a path should be removed was localizable, but the code always
expects a substring of "yes" to tell it to go ahead. Always show
[y/N] as part of this prompt to hint that the answer is not (yet)
localized.
* ja/clean-confirm-i18n:
Add hint interactive cleaning
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Description given by "grep -h" for its --exclude-standard option
was phrased poorly.
* nd/grep-exclude-standard-help-fix:
grep: correct help string for --exclude-standard
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Code cleanups.
* rs/simple-cleanups:
sha1_name: use strlcpy() to copy strings
pretty: use starts_with() to check for a prefix
for-each-ref: use skip_prefix() to avoid duplicate string comparison
connect: use strcmp() for string comparison
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Simplify the ref transaction API around how "the ref should be
pointing at this object" is specified.
* mh/refs-have-new:
refs.h: remove duplication in function docstrings
update_ref(): improve documentation
ref_transaction_verify(): new function to check a reference's value
ref_transaction_delete(): check that old_sha1 is not null_sha1
ref_transaction_create(): check that new_sha1 is valid
commit: avoid race when creating orphan commits
commit: add tests of commit races
ref_transaction_delete(): remove "have_old" parameter
ref_transaction_update(): remove "have_old" parameter
struct ref_update: move "have_old" into "flags"
refs.c: change some "flags" to "unsigned int"
refs: remove the gap in the REF_* constant values
refs: move REF_DELETING to refs.c
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Revamp the "git reflog" usage documentation in the manpage and the
command help to match the current reality and improve its clarity:
* Add documentation for some options that had been left out.
* Group the subcommands and options more logically and move more
common subcommands/options higher.
* Improve some explanations.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git apply --whitespace=fix" fixed whitespace errors in the common
context lines but did so without reporting.
* jc/apply-ws-fix-expands-report:
apply: detect and mark whitespace errors in context lines when fixing
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"git apply" was not very careful about reading from, removing,
updating and creating paths outside the working tree (under
--index/--cached) or the current directory (when used as a
replacement for GNU patch).
* jc/apply-beyond-symlink:
apply: do not touch a file beyond a symbolic link
apply: do not read from beyond a symbolic link
apply: do not read from the filesystem under --index
apply: reject input that touches outside the working area
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For translators, specify that a [y/N] reply is needed.
Also capitalize the first word in the prompt, as all the other
interactive prompts from this command are capitalized.
Signed-off-by: Jean-Noel Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The current help string is about --no-exclude-standard. But "git grep -h"
would show --exclude-standard instead. Flip the string. See 0a93fb8
(grep: teach --untracked and --exclude-standard options - 2011-09-27)
for more info about these options.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up.
* dp/remove-duplicated-header-inclusion:
do not include the same header twice
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"git merge-file" did not work correctly in a subdirectory.
* ab/merge-file-prefix:
merge-file: correctly open files when in a subdir
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"git blame" died, trying to free an uninitialized piece of memory.
* es/blame-commit-info-fix:
builtin/blame: destroy initialized commit_info only
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Use skip_prefix() to get the part after "color:" (if present) and only
compare it with "reset" instead of comparing the whole string again.
This gets rid of the duplicate "color:" part of the string constant.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If NULL is passed to ref_transaction_update()'s new_sha1 parameter,
then just verify old_sha1 (under lock) without trying to change the
new value of the reference.
Use this functionality to add a new function ref_transaction_verify(),
which checks the current value of the reference under lock but doesn't
change it.
Use ref_transaction_verify() in the implementation of "git update-ref
--stdin"'s "verify" command to avoid the awkward need to "update" the
reference to its existing value.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If HEAD doesn't point at anything during the initial check, then we
should make sure that it *still* doesn't point at anything when we are
ready to update the reference. Otherwise, another process might commit
while we are working (e.g., while we are waiting for the user to edit
the commit message) and we will silently overwrite it.
This fixes a failing test in t7516.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Instead, verify the reference's old value if and only if old_sha1 is
non-NULL.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Instead, verify the reference's old value if and only if old_sha1 is
non-NULL.
ref_transaction_delete() will get the same treatment in a moment.
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the following functions' "flags" arguments from "int" to
"unsigned int":
* ref_transaction_update()
* ref_transaction_create()
* ref_transaction_delete()
* update_ref()
* delete_ref()
* lock_ref_sha1_basic()
Also change the "flags" member in "struct ref_update" to unsigned.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The error message from "git commit", when a non-existing author
name was given as value to the "--author=" parameter, has been
reworded to avoid misunderstanding.
* mg/commit-author-no-match-malformed-message:
commit: reword --author error message
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"git apply --whitespace=fix" used to under-allocate the memory
when the fix resulted in a longer text than the original patch.
* jc/apply-ws-fix-expands:
apply: count the size of postimage correctly
apply: make update_pre_post_images() sanity check the given postlen
apply.c: typofix
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A few files include the same header file directly more than once.
As all these headers protect themselves against repeated inclusion
by the "#ifndef FOO_H / #define FOO_H / ... / #endif" idiom, leave
only the first inclusion and remove the later inclusion as a no-op
clean-up.
Signed-off-by: Дилян Палаузов <git-dpa@aegee.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ah/usage-strings:
standardize usage info string format
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Extending the js/push-to-deploy topic, the behaviour of "git push"
when updating the working tree and the index with an update to the
branch that is checked out can be tweaked by push-to-checkout hook.
* jc/push-to-checkout:
receive-pack: support push-to-checkout hook
receive-pack: refactor updateInstead codepath
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"git push" has been taught a "--atomic" option that makes push to
update more than one ref an "all-or-none" affair.
* sb/atomic-push:
Document receive.advertiseatomic
t5543-atomic-push.sh: add basic tests for atomic pushes
push.c: add an --atomic argument
send-pack.c: add --atomic command line argument
send-pack: rename ref_update_to_be_sent to check_to_send_update
receive-pack.c: negotiate atomic push support
receive-pack.c: add execute_commands_atomic function
receive-pack.c: move transaction handling in a central place
receive-pack.c: move iterating over all commands outside execute_commands
receive-pack.c: die instead of error in case of possible future bug
receive-pack.c: shorten the execute_commands loop over all commands
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Restructure "reflog expire" to fit the reflogs better with the
recently updated ref API.
Looked reasonable (except that some shortlog entries stood out like
a sore thumb).
* mh/reflog-expire: (24 commits)
refs.c: let fprintf handle the formatting
refs.c: don't expose the internal struct ref_lock in the header file
lock_any_ref_for_update(): inline function
refs.c: remove unlock_ref/close_ref/commit_ref from the refs api
reflog_expire(): new function in the reference API
expire_reflog(): treat the policy callback data as opaque
Move newlog and last_kept_sha1 to "struct expire_reflog_cb"
expire_reflog(): move rewrite to flags argument
expire_reflog(): move verbose to flags argument
expire_reflog(): pass flags through to expire_reflog_ent()
struct expire_reflog_cb: a new callback data type
Rename expire_reflog_cb to expire_reflog_policy_cb
expire_reflog(): move updateref to flags argument
expire_reflog(): move dry_run to flags argument
expire_reflog(): add a "flags" argument
expire_reflog(): extract two policy-related functions
Extract function should_expire_reflog_ent()
expire_reflog(): use a lock_file for rewriting the reflog file
expire_reflog(): return early if the reference has no reflog
expire_reflog(): rename "ref" parameter to "refname"
...
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Setting diff.submodule to 'log' made "git format-patch" produce
broken patches.
* dk/format-patch-ignore-diff-submodule:
format-patch: ignore diff.submodule setting
t4255: test am submodule with diff.submodule
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"git blame HEAD -- missing" failed to correctly say "HEAD" when it
tried to say "No such path 'missing' in HEAD".
* jk/blame-commit-label:
blame.c: fix garbled error message
use xstrdup_or_null to replace ternary conditionals
builtin/commit.c: use xstrdup_or_null instead of envdup
builtin/apply.c: use xstrdup_or_null instead of null_strdup
git-compat-util: add xstrdup_or_null helper
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run_setup_gently() is called before merge-file. This may result in changing
current working directory, which wasn't taken into account when opening a file
for writing.
Fix by prepending the passed prefix. Previous var is left so that error
messages keep referring to the file from the user's working directory
perspective.
Signed-off-by: Aleksander Boruch-Gruszecki <aleksander.boruchgruszecki@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Because Git tracks symbolic links as symbolic links, a path that
has a symbolic link in its leading part (e.g. path/to/dir/file,
where path/to/dir is a symbolic link to somewhere else, be it
inside or outside the working tree) can never appear in a patch
that validly applies, unless the same patch first removes the
symbolic link to allow a directory to be created there.
Detect and reject such a patch.
Things to note:
- Unfortunately, we cannot reuse the has_symlink_leading_path()
from dir.c, as that is only about the working tree, but "git
apply" can be told to apply the patch only to the index or to
both the index and to the working tree.
- We cannot directly use has_symlink_leading_path() even when we
are applying only to the working tree, as an early patch of a
valid input may remove a symbolic link path/to/dir and then a
later patch of the input may create a path path/to/dir/file, but
"git apply" first checks the input without touching either the
index or the working tree. The leading symbolic link check must
be done on the interim result we compute in-core (i.e. after the
first patch, there is no path/to/dir symbolic link and it is
perfectly valid to create path/to/dir/file).
Similarly, when an input creates a symbolic link path/to/dir and
then creates a file path/to/dir/file, we need to flag it as an
error without actually creating path/to/dir symbolic link in the
filesystem.
Instead, for any patch in the input that leaves a path (i.e. a non
deletion) in the result, we check all leading paths against the
resulting tree that the patch would create by inspecting all the
patches in the input and then the target of patch application
(either the index or the working tree).
This way, we catch a mischief or a mistake to add a symbolic link
path/to/dir and a file path/to/dir/file at the same time, while
allowing a valid patch that removes a symbolic link path/to/dir and
then adds a file path/to/dir/file.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We should reject a patch, whether it renames/copies dir/file to
elsewhere with or without modificiation, or updates dir/file in
place, if "dir/" part is actually a symbolic link to elsewhere,
by making sure that the code to read the preimage does not read
from a path that is beyond a symbolic link.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We currently read the preimage to apply a patch from the index only
when the --cached option is given. Do so also when the command is
running under the --index option. With --index, the index entry and
the working tree file for a path that is involved in a patch must be
identical, so this should not affect the result, but by reading from
the index, we will get the protection to avoid reading an unintended
path beyond a symbolic link automatically.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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By default, a patch that affects outside the working area (either a
Git controlled working tree, or the current working directory when
"git apply" is used as a replacement of GNU patch) is rejected as a
mistake (or a mischief). Git itself does not create such a patch,
unless the user bends over backwards and specifies a non-standard
prefix to "git diff" and friends.
When `git apply` is used as a "better GNU patch", the user can pass
the `--unsafe-paths` option to override this safety check. This
option has no effect when `--index` or `--cached` is in use.
The new test was stolen from Jeff King with slight enhancements.
Note that a few new tests for touching outside the working area by
following a symbolic link are still expected to fail at this step,
but will be fixed in later steps.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since ea02ffa3 (mailmap: simplify map_user() interface, 2013-01-05),
find_alignment() has been invoking commit_info_destroy() on an
uninitialized auto 'struct commit_info' (when METAINFO_SHOWN is not
set). commit_info_destroy() calls strbuf_release() for each
'commit_info' strbuf member, which randomly invokes free() on
whatever random stack value happens to reside in strbuf.buf, thus
leading to periodic crashes.
Reported-by: Dilyan Palauzov <dilyan.palauzov@aegee.org>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* sb/atomic-push:
Document receive.advertiseatomic
t5543-atomic-push.sh: add basic tests for atomic pushes
push.c: add an --atomic argument
send-pack.c: add --atomic command line argument
send-pack: rename ref_update_to_be_sent to check_to_send_update
receive-pack.c: negotiate atomic push support
receive-pack.c: add execute_commands_atomic function
receive-pack.c: move transaction handling in a central place
receive-pack.c: move iterating over all commands outside execute_commands
receive-pack.c: die instead of error in case of possible future bug
receive-pack.c: shorten the execute_commands loop over all commands
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* mh/reflog-expire: (24 commits)
refs.c: let fprintf handle the formatting
refs.c: don't expose the internal struct ref_lock in the header file
lock_any_ref_for_update(): inline function
refs.c: remove unlock_ref/close_ref/commit_ref from the refs api
reflog_expire(): new function in the reference API
expire_reflog(): treat the policy callback data as opaque
Move newlog and last_kept_sha1 to "struct expire_reflog_cb"
expire_reflog(): move rewrite to flags argument
expire_reflog(): move verbose to flags argument
expire_reflog(): pass flags through to expire_reflog_ent()
struct expire_reflog_cb: a new callback data type
Rename expire_reflog_cb to expire_reflog_policy_cb
expire_reflog(): move updateref to flags argument
expire_reflog(): move dry_run to flags argument
expire_reflog(): add a "flags" argument
expire_reflog(): extract two policy-related functions
Extract function should_expire_reflog_ent()
expire_reflog(): use a lock_file for rewriting the reflog file
expire_reflog(): return early if the reference has no reflog
expire_reflog(): rename "ref" parameter to "refname"
...
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If an --author argument is specified but does not contain a '>' then git tries
to find the argument within the existing authors; and gives the error
message "No existing author found with '%s'" if there is no match.
This is confusing for users who try to specify a valid complete author
name.
Rename the error message to make it clearer that the failure has two
reasons in this case.
(This codepath is touched only when we know already that the argument
cannot be a completely wellformed author ident.)
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ak/cat-file-clean-up:
cat-file: use "type" and "size" from outer scope
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When the incoming patch has whitespace errors in a common context
line (i.e. a line that is expected to be found and is not modified
by the patch), "apply --whitespace=fix" corrects the whitespace
errors the line has, in addition to the whitespace error on a line
that is updated by the patch. However, we did not count and report
that we fixed whitespace errors on such lines.
[jc: This is iffy. What if the whitespace error has been fixed in
the target since the patch was written? A common context line we
see in the patch has errors, and it matches a line in the target
that has the errors already corrected, resulting in no change, which
we may not want to count after all. On the other hand, we are
reporting whitespace errors _in_ the incoming patch, so...]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Under --whitespace=fix option, match_fragment() function examines
the preimage (the common context and the removed lines in the patch)
and the file being patched and checks if they match after correcting
all whitespace errors. When they are found to match, the common
context lines in the preimage is replaced with the fixed copy,
because these lines will then be copied to the corresponding place
in the postimage by a later call to update_pre_post_images(). Lines
that are added in the postimage, under --whitespace=fix, have their
whitespace errors already fixed when apply_one_fragment() prepares
the preimage and the postimage, so in the end, application of the
patch can be done by replacing the block of text in the file being
patched that matched the preimage with what is in the postimage that
was updated by update_pre_post_images().
In the earlier days, fixing whitespace errors always resulted in
reduction of size, either collapsing runs of spaces in the indent to
a tab or removing the trailing whitespaces. These days, however,
some whitespace error fix results in extending the size.
250b3c6c (apply --whitespace=fix: avoid running over the postimage
buffer, 2013-03-22) tried to compute the final postimage size but
its math was flawed. It counted the size of the block of text in
the original being patched after fixing the whitespace errors on its
lines that correspond to the preimage. That number does not have
much to do with how big the final postimage would be.
Instead count (1) the added lines in the postimage, whose size is
the same as in the final patch result because their whitespace
errors have already been corrected, and (2) the fixed size of the
lines that are common.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git apply --whitespace=fix" used to be able to assume that fixing
errors will always reduce the size by e.g. stripping whitespaces at
the end of lines or collapsing runs of spaces into tabs at the
beginning of lines. An update to accomodate fixes that lengthens
the result by e.g. expanding leading tabs into spaces were made long
time ago but the logic miscounted the necessary space after such
whitespace fixes, leading to either under-allocation or over-usage
of already allocated space.
Illustrate this with a runtime sanity-check to protect us from
future breakage. The test was stolen from Kyle McKay who helped
to identify the problem.
Helped-by: "Kyle J. McKay" <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ak/show-branch-usage-string:
show-branch: fix indentation of usage string
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Noticed-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* rc/for-each-ref-tracking:
for-each-ref: always check stat_tracking_info()'s return value
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* ak/fewer-includes:
cat-file: remove unused includes
git.c: remove unnecessary #includes
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* ak/show-branch-usage-string:
show-branch: line-wrap show-branch usage
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Nguyễn Thái Ngọc Duy
Junio C Hamano
Michael Haggerty
Jean-Noel Avila
René Scharfe
Дилян Палаузов
Aleksander Boruch-Gruszecki
Eric Sunshine
Michael J Gruber
Ralf Thielow