git/git.git
13 months agoMerge branch 'en/merge-options-ff-and-friends'
Junio C Hamano [Mon, 30 Sep 2019 04:19:28 +0000 (13:19 +0900)]
Merge branch 'en/merge-options-ff-and-friends'

Doc update.

* en/merge-options-ff-and-friends:
  merge-options.txt: clarify meaning of various ff-related options

13 months agoMerge branch 'tg/push-all-in-mirror-forbidden'
Junio C Hamano [Mon, 30 Sep 2019 04:19:28 +0000 (13:19 +0900)]
Merge branch 'tg/push-all-in-mirror-forbidden'

Fix an earlier regression to "git push --all" which should have
been forbidden when the target remote repository is set to be a
mirror.

* tg/push-all-in-mirror-forbidden:
  push: disallow --all and refspecs when remote.<name>.mirror is set

13 months agoMerge branch 'dt/remote-helper-doc-re-lock-option'
Junio C Hamano [Mon, 30 Sep 2019 04:19:28 +0000 (13:19 +0900)]
Merge branch 'dt/remote-helper-doc-re-lock-option'

Doc update.

* dt/remote-helper-doc-re-lock-option:
  clarify documentation for remote helpers

13 months agoMerge branch 'rs/help-unknown-ref-does-not-return'
Junio C Hamano [Mon, 30 Sep 2019 04:19:27 +0000 (13:19 +0900)]
Merge branch 'rs/help-unknown-ref-does-not-return'

Code cleanup.

* rs/help-unknown-ref-does-not-return:
  help: make help_unknown_ref() NORETURN

13 months agoMerge branch 'nd/switch-and-restore'
Junio C Hamano [Mon, 30 Sep 2019 04:19:27 +0000 (13:19 +0900)]
Merge branch 'nd/switch-and-restore'

Resurrect a performance hack.

* nd/switch-and-restore:
  checkout: add simple check for 'git checkout -b'

13 months agoMerge branch 'tb/file-url-to-unc-path'
Junio C Hamano [Mon, 30 Sep 2019 04:19:27 +0000 (13:19 +0900)]
Merge branch 'tb/file-url-to-unc-path'

Windows update.

* tb/file-url-to-unc-path:
  mingw: support UNC in git clone file://server/share/repo

13 months agoMerge branch 'js/gitdir-at-unc-root'
Junio C Hamano [Mon, 30 Sep 2019 04:19:26 +0000 (13:19 +0900)]
Merge branch 'js/gitdir-at-unc-root'

On Windows, the root level of UNC share is now allowed to be used
just like any other directory.

* js/gitdir-at-unc-root:
  setup_git_directory(): handle UNC root paths correctly
  Fix .git/ discovery at the root of UNC shares
  setup_git_directory(): handle UNC paths correctly

13 months agoMerge branch 'ar/mingw-run-external-with-non-ascii-path'
Junio C Hamano [Mon, 30 Sep 2019 04:19:26 +0000 (13:19 +0900)]
Merge branch 'ar/mingw-run-external-with-non-ascii-path'

Windows update.

* ar/mingw-run-external-with-non-ascii-path:
  mingw: fix launching of externals from Unicode paths

13 months agoMerge branch 'rs/parse-tree-indirect'
Junio C Hamano [Mon, 30 Sep 2019 04:19:26 +0000 (13:19 +0900)]
Merge branch 'rs/parse-tree-indirect'

Code cleanup.

* rs/parse-tree-indirect:
  tree: simplify parse_tree_indirect()

13 months agoMerge branch 'jk/fast-import-history-bugfix'
Junio C Hamano [Mon, 30 Sep 2019 04:19:25 +0000 (13:19 +0900)]
Merge branch 'jk/fast-import-history-bugfix'

The memory ownership model of the "git fast-import" got
straightened out.

* jk/fast-import-history-bugfix:
  fast-import: duplicate into history rather than passing ownership
  fast-import: duplicate parsed encoding string

13 months agoMerge branch 'mh/notes-duplicate-entries'
Junio C Hamano [Mon, 30 Sep 2019 04:19:25 +0000 (13:19 +0900)]
Merge branch 'mh/notes-duplicate-entries'

A few implementation fixes in the notes API.

* mh/notes-duplicate-entries:
  notes: avoid potential use-after-free during insertion
  notes: avoid leaking duplicate entries

13 months agoMerge branch 'tb/banned-vsprintf-namefix'
Junio C Hamano [Mon, 30 Sep 2019 04:19:25 +0000 (13:19 +0900)]
Merge branch 'tb/banned-vsprintf-namefix'

Error message fix.

* tb/banned-vsprintf-namefix:
  banned.h: fix vsprintf()'s ban message

13 months agoMerge branch 'mh/release-commit-memory-fix'
Junio C Hamano [Mon, 30 Sep 2019 04:19:25 +0000 (13:19 +0900)]
Merge branch 'mh/release-commit-memory-fix'

Leakfix.

* mh/release-commit-memory-fix:
  commit: free the right buffer in release_commit_memory

13 months agoMerge branch 'mh/http-urlmatch-cleanup'
Junio C Hamano [Mon, 30 Sep 2019 04:19:24 +0000 (13:19 +0900)]
Merge branch 'mh/http-urlmatch-cleanup'

Leakfix.

* mh/http-urlmatch-cleanup:
  http: don't leak urlmatch_config.vars

13 months agoMerge branch 'rs/strbuf-detach'
Junio C Hamano [Mon, 30 Sep 2019 04:19:24 +0000 (13:19 +0900)]
Merge branch 'rs/strbuf-detach'

Straighten out the use of strbuf_detach() API function.

* rs/strbuf-detach:
  grep: use return value of strbuf_detach()
  log-tree: always use return value of strbuf_detach()

13 months agoMerge branch 'rs/trace2-dst-warning'
Junio C Hamano [Mon, 30 Sep 2019 04:19:24 +0000 (13:19 +0900)]
Merge branch 'rs/trace2-dst-warning'

Code cleanup.

* rs/trace2-dst-warning:
  trace2: use warning() directly in tr2_dst_malformed_warning()

13 months agoMerge branch 'dl/format-patch-doc-test-cleanup'
Junio C Hamano [Mon, 30 Sep 2019 04:19:23 +0000 (13:19 +0900)]
Merge branch 'dl/format-patch-doc-test-cleanup'

The documentation and tests for "git format-patch" have been
cleaned up.

* dl/format-patch-doc-test-cleanup:
  config/format.txt: specify default value of format.coverLetter
  Doc: add more detail for git-format-patch
  t4014: stop losing return codes of git commands
  t4014: remove confusing pipe in check_threading()
  t4014: use test_line_count() where possible
  t4014: let sed open its own files
  t4014: drop redirections to /dev/null
  t4014: use indentable here-docs
  t4014: remove spaces after redirect operators
  t4014: use sq for test case names
  t4014: move closing sq onto its own line
  t4014: s/expected/expect/
  t4014: drop unnecessary blank lines from test cases

13 months agoMerge branch 'bc/hash-independent-tests-part-5'
Junio C Hamano [Mon, 30 Sep 2019 04:19:23 +0000 (13:19 +0900)]
Merge branch 'bc/hash-independent-tests-part-5'

Preparation for SHA-256 upgrade continues in the test department.

* bc/hash-independent-tests-part-5:
  t4009: make hash size independent
  t4002: make hash independent
  t4000: make hash size independent
  t3903: abstract away SHA-1-specific constants
  t3800: make hash-size independent
  t3600: make hash size independent
  t3506: make hash independent
  t3430: avoid hard-coded object IDs
  t3404: abstract away SHA-1-specific constants
  t3306: abstract away SHA-1-specific constants
  t3305: make hash size independent
  t3301: abstract away SHA-1-specific constants
  t3206: abstract away hash size constants
  t3201: abstract away SHA-1-specific constants

13 months agoMerge branch 'jc/test-cleanup'
Junio C Hamano [Mon, 30 Sep 2019 04:19:23 +0000 (13:19 +0900)]
Merge branch 'jc/test-cleanup'

Code cleanup.

* jc/test-cleanup:
  t3005: remove unused variable
  t: use LF variable defined in the test harness

13 months agoMerge branch 'dl/compat-cleanup'
Junio C Hamano [Mon, 30 Sep 2019 04:19:23 +0000 (13:19 +0900)]
Merge branch 'dl/compat-cleanup'

Code cleanup.

* dl/compat-cleanup:
  compat/*.[ch]: remove extern from function declarations using spatch
  mingw: apply array.cocci rule

13 months agoMerge branch 'js/visual-studio'
Junio C Hamano [Mon, 30 Sep 2019 04:19:22 +0000 (13:19 +0900)]
Merge branch 'js/visual-studio'

Adjust .gitignore to unignore a path that we started to track.

* js/visual-studio:
  .gitignore: stop ignoring `.manifest` files

14 months agoThird batch
Junio C Hamano [Wed, 18 Sep 2019 18:55:13 +0000 (11:55 -0700)]
Third batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agoMerge branch 'jt/avoid-ls-refs-with-http'
Junio C Hamano [Wed, 18 Sep 2019 18:50:10 +0000 (11:50 -0700)]
Merge branch 'jt/avoid-ls-refs-with-http'

The http transport lacked some optimization the native transports
learned to avoid unnecessary ref advertisement, which has been
corrected.

* jt/avoid-ls-refs-with-http:
  transport: teach all vtables to allow fetch first
  transport-helper: skip ls-refs if unnecessary

14 months agoMerge branch 'md/list-objects-filter-combo'
Junio C Hamano [Wed, 18 Sep 2019 18:50:09 +0000 (11:50 -0700)]
Merge branch 'md/list-objects-filter-combo'

The list-objects-filter API (used to create a sparse/lazy clone)
learned to take a combined filter specification.

* md/list-objects-filter-combo:
  list-objects-filter-options: make parser void
  list-objects-filter-options: clean up use of ALLOC_GROW
  list-objects-filter-options: allow mult. --filter
  strbuf: give URL-encoding API a char predicate fn
  list-objects-filter-options: make filter_spec a string_list
  list-objects-filter-options: move error check up
  list-objects-filter: implement composite filters
  list-objects-filter-options: always supply *errbuf
  list-objects-filter: put omits set in filter struct
  list-objects-filter: encapsulate filter components

14 months agoMerge branch 'cc/multi-promisor'
Junio C Hamano [Wed, 18 Sep 2019 18:50:09 +0000 (11:50 -0700)]
Merge branch 'cc/multi-promisor'

Teach the lazy clone machinery that there can be more than one
promisor remote and consult them in order when downloading missing
objects on demand.

* cc/multi-promisor:
  Move core_partial_clone_filter_default to promisor-remote.c
  Move repository_format_partial_clone to promisor-remote.c
  Remove fetch-object.{c,h} in favor of promisor-remote.{c,h}
  remote: add promisor and partial clone config to the doc
  partial-clone: add multiple remotes in the doc
  t0410: test fetching from many promisor remotes
  builtin/fetch: remove unique promisor remote limitation
  promisor-remote: parse remote.*.partialclonefilter
  Use promisor_remote_get_direct() and has_promisor_remote()
  promisor-remote: use repository_format_partial_clone
  promisor-remote: add promisor_remote_reinit()
  promisor-remote: implement promisor_remote_get_direct()
  Add initial support for many promisor remotes
  fetch-object: make functions return an error code
  t0410: remove pipes after git commands

14 months agoMerge branch 'sg/line-log-tree-diff-optim'
Junio C Hamano [Wed, 18 Sep 2019 18:50:09 +0000 (11:50 -0700)]
Merge branch 'sg/line-log-tree-diff-optim'

Optimize unnecessary full-tree diff away from "git log -L" machinery.

* sg/line-log-tree-diff-optim:
  line-log: avoid unnecessary full tree diffs
  line-log: extract pathspec parsing from line ranges into a helper function

14 months agoMerge branch 'sg/complete-configuration-variables'
Junio C Hamano [Wed, 18 Sep 2019 18:50:08 +0000 (11:50 -0700)]
Merge branch 'sg/complete-configuration-variables'

Command line completion updates for "git -c var.name=val"

* sg/complete-configuration-variables:
  completion: complete config variables and values for 'git clone --config='
  completion: complete config variables names and values for 'git clone -c'
  completion: complete values of configuration variables after 'git -c var='
  completion: complete configuration sections and variable names for 'git -c'
  completion: split _git_config()
  completion: simplify inner 'case' pattern in __gitcomp()
  completion: use 'sort -u' to deduplicate config variable names
  completion: deduplicate configuration sections
  completion: add tests for 'git config' completion
  completion: complete more values of more 'color.*' configuration variables
  completion: fix a typo in a comment

14 months agoMerge branch 'js/pre-merge-commit-hook'
Junio C Hamano [Wed, 18 Sep 2019 18:50:08 +0000 (11:50 -0700)]
Merge branch 'js/pre-merge-commit-hook'

A new "pre-merge-commit" hook has been introduced.

* js/pre-merge-commit-hook:
  merge: --no-verify to bypass pre-merge-commit hook
  git-merge: honor pre-merge-commit hook
  merge: do no-verify like commit
  t7503: verify proper hook execution

14 months agoMerge branch 'cb/curl-use-xmalloc'
Junio C Hamano [Wed, 18 Sep 2019 18:50:08 +0000 (11:50 -0700)]
Merge branch 'cb/curl-use-xmalloc'

Tell cURL library to use the same malloc() implementation, with the
xmalloc() wrapper, as the rest of the system, for consistency.

* cb/curl-use-xmalloc:
  http: use xmalloc with cURL

14 months agoMerge branch 'jk/drop-release-pack-memory'
Junio C Hamano [Wed, 18 Sep 2019 18:50:07 +0000 (11:50 -0700)]
Merge branch 'jk/drop-release-pack-memory'

xmalloc() used to have a mechanism to ditch memory and address
space resources as the last resort upon seeing an allocation
failure from the underlying malloc(), which made the code complex
and thread-unsafe with dubious benefit, as major memory resource
users already do limit their uses with various other mechanisms.
It has been simplified away.

* jk/drop-release-pack-memory:
  packfile: drop release_pack_memory()

14 months agoMerge branch 'js/rebase-r-strategy'
Junio C Hamano [Wed, 18 Sep 2019 18:50:07 +0000 (11:50 -0700)]
Merge branch 'js/rebase-r-strategy'

"git rebase --rebase-merges" learned to drive different merge
strategies and pass strategy specific options to them.

* js/rebase-r-strategy:
  t3427: accelerate this test by using fast-export and fast-import
  rebase -r: do not (re-)generate root commits with `--root` *and* `--onto`
  t3418: test `rebase -r` with merge strategies
  t/lib-rebase: prepare for testing `git rebase --rebase-merges`
  rebase -r: support merge strategies other than `recursive`
  t3427: fix another incorrect assumption
  t3427: accommodate for the `rebase --merge` backend having been replaced
  t3427: fix erroneous assumption
  t3427: condense the unnecessarily repetitive test cases into three
  t3427: move the `filter-branch` invocation into the `setup` case
  t3427: simplify the `setup` test case significantly
  t3427: add a clarifying comment
  rebase: fold git-rebase--common into the -p backend
  sequencer: the `am` and `rebase--interactive` scripts are gone
  .gitignore: there is no longer a built-in `git-rebase--interactive`
  t3400: stop referring to the scripted rebase
  Drop unused git-rebase--am.sh

14 months agoMerge branch 'master' of https://github.com/prati0100/git-gui
Junio C Hamano [Wed, 18 Sep 2019 18:22:11 +0000 (11:22 -0700)]
Merge branch 'master' of https://github.com/prati0100/git-gui

* 'master' of https://github.com/prati0100/git-gui:
  git-gui: add hotkey to toggle "Amend Last Commit"
  git-gui: add horizontal scrollbar to commit buffer
  git-gui: convert new/amend commit radiobutton to checkbutton
  git-gui: add hotkeys to set widget focus
  git-gui: allow undoing last revert
  git-gui: return early when patch fails to apply
  git-gui: allow reverting selected hunk
  git-gui: allow reverting selected lines

14 months agoMerge gitk to pick up emergency build fix
Junio C Hamano [Tue, 17 Sep 2019 21:59:18 +0000 (14:59 -0700)]
Merge gitk to pick up emergency build fix

  gitk: rename zh_CN.po to zh_cn.po

14 months agogitk: rename zh_CN.po to zh_cn.po
Denton Liu [Tue, 17 Sep 2019 08:52:06 +0000 (01:52 -0700)]
gitk: rename zh_CN.po to zh_cn.po

When running make from a clean environment, all of the *.po files should
be converted into *.msg files. After that, when make is run without any
changes, make should not do anything.

After beffae768a (gitk: Add Chinese (zh_CN) translation, 2017-03-11),
zh_CN.po was introduced. When make was run, a zh_cn.msg file was
generated (notice the lowercase). However, since make is case-sensitive,
it expects zh_CN.po to generate a zh_CN.msg file so make will keep
reattempting to generate a zh_CN.msg so successive make invocations
result in

    Generating catalog po/zh_cn.msg
    msgfmt --statistics --tcl po/zh_cn.po -l zh_cn -d po/
    317 translated messages.

happening continuously.

Rename zh_CN.po to zh_cn.po so that when make generates the zh_cn.msg
file, it will realize that it was successfully generated and only run
once.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agoMerge branch 'master' of git://ozlabs.org/~paulus/gitk
Junio C Hamano [Mon, 16 Sep 2019 17:25:08 +0000 (10:25 -0700)]
Merge branch 'master' of git://ozlabs.org/~paulus/gitk

* 'master' of git://ozlabs.org/~paulus/gitk:
  gitk: Do not mistake unchanged lines for submodule changes
  gitk: Use right colour for remote refs in the "Tags and heads" dialog
  gitk: Add Chinese (zh_CN) translation
  gitk: Make web links clickable

14 months agoMerge branch 'bp/amend-toggle-bind'
Pratyush Yadav [Sat, 14 Sep 2019 17:53:12 +0000 (23:23 +0530)]
Merge branch 'bp/amend-toggle-bind'

Toggle amend on and off with the keyboard shortcut "Ctrl+e".

* bp/amend-toggle-bind:
  git-gui: add hotkey to toggle "Amend Last Commit"

14 months agogit-gui: add hotkey to toggle "Amend Last Commit"
Birger Skogeng Pedersen [Sat, 14 Sep 2019 09:18:35 +0000 (11:18 +0200)]
git-gui: add hotkey to toggle "Amend Last Commit"

Selecting whether to "Amend Last Commit" or not does not have a hotkey.

With this patch, the user may toggle between the two options with
CTRL/CMD+e.

Signed-off-by: Birger Skogeng Pedersen <birger.sp@gmail.com>
Rebased-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
14 months agogitk: Do not mistake unchanged lines for submodule changes
Gabriele Mazzotta [Sat, 23 Mar 2019 17:00:36 +0000 (18:00 +0100)]
gitk: Do not mistake unchanged lines for submodule changes

Unchanged lines are prefixed with a white-space, thus unchanged lines
starting with either " <" or " >" are mistaken for submodule changes.
Check if a line starts with either "  <" or "  >" only if we are listing
the changes of a submodule.

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
14 months agogitk: Use right colour for remote refs in the "Tags and heads" dialog
Paul Wise [Thu, 21 Mar 2019 07:05:32 +0000 (15:05 +0800)]
gitk: Use right colour for remote refs in the "Tags and heads" dialog

Makes it easier to see which refs are local and which refs are remote.
Adds consistency with the remote background colour in the graph display.

Signed-off-by: Paul Wise <pabs3@bonedaddy.net>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
14 months agogitk: Add Chinese (zh_CN) translation
YanKe [Fri, 10 Mar 2017 19:00:00 +0000 (03:00 +0800)]
gitk: Add Chinese (zh_CN) translation

Signed-off-by: YanKe <imyanke@163.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
14 months agoMerge branch 'bw/commit-scrollbuffer'
Pratyush Yadav [Fri, 13 Sep 2019 20:49:38 +0000 (02:19 +0530)]
Merge branch 'bw/commit-scrollbuffer'

Add a scrollbar at the bottom of the commit message buffer.

* bw/commit-scrollbuffer:
  git-gui: add horizontal scrollbar to commit buffer

14 months agoMerge branch 'bw/amend-checkbutton'
Pratyush Yadav [Fri, 13 Sep 2019 20:48:27 +0000 (02:18 +0530)]
Merge branch 'bw/amend-checkbutton'

Change the amend setting from two radio buttons ("New commit" and "Amend
commit") to a single checkbutton. The two radio buttons can never be
selected together because they are exactly the opposite of each other,
so it makes sense to change it to a single checkbutton.

* bw/amend-checkbutton:
  git-gui: convert new/amend commit radiobutton to checkbutton

14 months agogit-gui: add horizontal scrollbar to commit buffer
Bert Wesarg [Fri, 13 Sep 2019 20:16:28 +0000 (22:16 +0200)]
git-gui: add horizontal scrollbar to commit buffer

While the commit message widget has a configurable fixed width, it
nevertheless allowed to write commit messages which exceeded this limit.
Though there is no visual clue, that there is scrolling going on. Now
there is a horizontal scrollbar.

There seems to be a bug in at least Tcl/Tk up to version 8.6.8, which
does not update the horizontal scrollbar if one removes the whole
content at once.

Suggested-by: Birger Skogeng Pedersen <birger.sp@gmail.com>
Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
14 months agogit-gui: convert new/amend commit radiobutton to checkbutton
Bert Wesarg [Fri, 13 Sep 2019 06:02:30 +0000 (08:02 +0200)]
git-gui: convert new/amend commit radiobutton to checkbutton

Its a bi-state anyway and also saves one line in the menu.

Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
14 months agoMerge branch 'py/revert-hunks-lines'
Pratyush Yadav [Wed, 11 Sep 2019 21:11:12 +0000 (02:41 +0530)]
Merge branch 'py/revert-hunks-lines'

git-gui learned to revert selected lines and hunks, just like it can
stage selected lines and hunks. To provide a safety net for accidental
revert, the most recent revert can be undone.

* py/revert-hunks-lines:
  git-gui: allow undoing last revert
  git-gui: return early when patch fails to apply
  git-gui: allow reverting selected hunk
  git-gui: allow reverting selected lines

14 months agoMerge branch 'bp/widget-focus-hotkeys'
Pratyush Yadav [Wed, 11 Sep 2019 21:10:24 +0000 (02:40 +0530)]
Merge branch 'bp/widget-focus-hotkeys'

git-gui learned to switch focus between widgets "unstaged commits",
"staged commits", "diff", and "commit message" using the keyboard
shortcuts Alt+1, Alt+2, Alt+3, and Alt+4 respectively.

* bp/widget-focus-hotkeys:
  git-gui: add hotkeys to set widget focus

14 months agogit-gui: add hotkeys to set widget focus
Birger Skogeng Pedersen [Wed, 4 Sep 2019 14:30:55 +0000 (16:30 +0200)]
git-gui: add hotkeys to set widget focus

The user cannot change focus between the list of files, the diff view and
the commit message widgets without using the mouse (clicking either of
the four widgets).

With this patch, the user may set ui focus to the previously selected path
in either the "Unstaged Changes" or "Staged Changes" widgets, using
ALT+1 or ALT+2.

The user may also set the ui focus to the diff view widget with
ALT+3, or to the commit message widget with ALT+4.

This enables the user to select/unselect files, view the diff and create a
commit in git-gui using keyboard-only.

Signed-off-by: Birger Skogeng Pedersen <birger.sp@gmail.com>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
14 months agoSecond batch
Junio C Hamano [Mon, 9 Sep 2019 19:31:27 +0000 (12:31 -0700)]
Second batch

Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agoMerge branch 'bc/reread-attributes-during-rebase'
Junio C Hamano [Mon, 9 Sep 2019 19:26:40 +0000 (12:26 -0700)]
Merge branch 'bc/reread-attributes-during-rebase'

The "git am" based backend of "git rebase" ignored the result of
updating ".gitattributes" done in one step when replaying
subsequent steps.

* bc/reread-attributes-during-rebase:
  am: reload .gitattributes after patching it
  path: add a function to check for path suffix

14 months agoMerge branch 'tg/t0021-racefix'
Junio C Hamano [Mon, 9 Sep 2019 19:26:40 +0000 (12:26 -0700)]
Merge branch 'tg/t0021-racefix'

A test fix.

* tg/t0021-racefix:
  t0021: make sure clean filter runs

14 months agoMerge branch 'mp/for-each-ref-missing-name-or-email'
Junio C Hamano [Mon, 9 Sep 2019 19:26:39 +0000 (12:26 -0700)]
Merge branch 'mp/for-each-ref-missing-name-or-email'

"for-each-ref" and friends that shows refs did not protect themselves
against ancient tags that did not record tagger names when asked to
show "%(taggername)", which have been corrected.

* mp/for-each-ref-missing-name-or-email:
  ref-filter: initialize empty name or email fields

14 months agoMerge branch 'sb/userdiff-dts'
Junio C Hamano [Mon, 9 Sep 2019 19:26:39 +0000 (12:26 -0700)]
Merge branch 'sb/userdiff-dts'

Device-tree files learned their own userdiff patterns.

* sb/userdiff-dts:
  userdiff: add a builtin pattern for dts files

14 months agoMerge branch 'rs/sort-oid-array-thread-safe'
Junio C Hamano [Mon, 9 Sep 2019 19:26:39 +0000 (12:26 -0700)]
Merge branch 'rs/sort-oid-array-thread-safe'

Prepare get_short_oid() codepath to be thread-safe.

* rs/sort-oid-array-thread-safe:
  sha1-name: make sort_ambiguous_oid_array() thread-safe

14 months agoMerge branch 'nd/diff-parseopt'
Junio C Hamano [Mon, 9 Sep 2019 19:26:38 +0000 (12:26 -0700)]
Merge branch 'nd/diff-parseopt'

Compilation fix.

* nd/diff-parseopt:
  parseopt: move definition of enum parse_opt_result up

14 months agoMerge branch 'jt/diff-lazy-fetch-submodule-fix'
Junio C Hamano [Mon, 9 Sep 2019 19:26:38 +0000 (12:26 -0700)]
Merge branch 'jt/diff-lazy-fetch-submodule-fix'

On-demand object fetching in lazy clone incorrectly tried to fetch
commits from submodule projects, while still working in the
superproject, which has been corrected.

* jt/diff-lazy-fetch-submodule-fix:
  diff: skip GITLINK when lazy fetching missing objs

14 months agoMerge branch 'ds/midx-expire-repack'
Junio C Hamano [Mon, 9 Sep 2019 19:26:38 +0000 (12:26 -0700)]
Merge branch 'ds/midx-expire-repack'

Code cleanup.

* ds/midx-expire-repack:
  packfile.h: drop extern from function declaration

14 months agoMerge branch 'cb/fetch-set-upstream'
Junio C Hamano [Mon, 9 Sep 2019 19:26:37 +0000 (12:26 -0700)]
Merge branch 'cb/fetch-set-upstream'

"git fetch" learned "--set-upstream" option to help those who first
clone from their private fork they intend to push to, add the true
upstream via "git remote add" and then "git fetch" from it.

* cb/fetch-set-upstream:
  pull, fetch: add --set-upstream option

14 months agoMerge branch 'rs/pax-extended-header-length-fix'
Junio C Hamano [Mon, 9 Sep 2019 19:26:37 +0000 (12:26 -0700)]
Merge branch 'rs/pax-extended-header-length-fix'

"git archive" recorded incorrect length in extended pax header in
some corner cases, which has been corrected.

* rs/pax-extended-header-length-fix:
  archive-tar: turn length miscalculation warning into BUG
  archive-tar: use size_t in strbuf_append_ext_header()
  archive-tar: fix pax extended header length calculation
  archive-tar: report wrong pax extended header length

14 months agoMerge branch 'bm/repository-layout-typofix'
Junio C Hamano [Mon, 9 Sep 2019 19:26:37 +0000 (12:26 -0700)]
Merge branch 'bm/repository-layout-typofix'

Typofix.

* bm/repository-layout-typofix:
  repository-layout.txt: correct pluralization of 'object'

14 months agoMerge branch 'en/checkout-mismerge-fix'
Junio C Hamano [Mon, 9 Sep 2019 19:26:36 +0000 (12:26 -0700)]
Merge branch 'en/checkout-mismerge-fix'

Fix a mismerge that happened in 2.22 timeframe.

* en/checkout-mismerge-fix:
  checkout: remove duplicate code

14 months agoMerge branch 'sg/diff-indent-heuristic-non-experimental'
Junio C Hamano [Mon, 9 Sep 2019 19:26:36 +0000 (12:26 -0700)]
Merge branch 'sg/diff-indent-heuristic-non-experimental'

We promoted the "indent heuristics" that decides where to split
diff hunks from experimental to the default a few years ago, but
some stale documentation still marked it as experimental, which has
been corrected.

* sg/diff-indent-heuristic-non-experimental:
  diff: 'diff.indentHeuristic' is no longer experimental

14 months agoMerge branch 'ds/feature-macros'
Junio C Hamano [Mon, 9 Sep 2019 19:26:36 +0000 (12:26 -0700)]
Merge branch 'ds/feature-macros'

A mechanism to affect the default setting for a (related) group of
configuration variables is introduced.

* ds/feature-macros:
  repo-settings: create feature.experimental setting
  repo-settings: create feature.manyFiles setting
  repo-settings: parse core.untrackedCache
  commit-graph: turn on commit-graph by default
  t6501: use 'git gc' in quiet mode
  repo-settings: consolidate some config settings

14 months agoMerge branch 'jk/eoo'
Junio C Hamano [Mon, 9 Sep 2019 19:26:35 +0000 (12:26 -0700)]
Merge branch 'jk/eoo'

The command line parser learned "--end-of-options" notation; the
standard convention for scripters to have hardcoded set of options
first on the command line, and force the command to treat end-user
input as non-options, has been to use "--" as the delimiter, but
that would not work for commands that use "--" as a delimiter
between revs and pathspec.

* jk/eoo:
  gitcli: document --end-of-options
  parse-options: allow --end-of-options as a synonym for "--"
  revision: allow --end-of-options to end option parsing

14 months agoMerge branch 'jk/repo-init-cleanup'
Junio C Hamano [Mon, 9 Sep 2019 19:26:35 +0000 (12:26 -0700)]
Merge branch 'jk/repo-init-cleanup'

Further clean-up of the initialization code.

* jk/repo-init-cleanup:
  config: stop checking whether the_repository is NULL
  common-main: delay trace2 initialization
  t1309: use short branch name in includeIf.onbranch test

14 months agoMerge branch 'py/git-gui-do-quit'
Junio C Hamano [Mon, 9 Sep 2019 19:26:35 +0000 (12:26 -0700)]
Merge branch 'py/git-gui-do-quit'

"git gui" learned to call the clean-up procedure before exiting.

* py/git-gui-do-quit:
  git-gui: call do_quit before destroying the main window

14 months agoconfig/format.txt: specify default value of format.coverLetter
Denton Liu [Tue, 27 Aug 2019 04:05:20 +0000 (00:05 -0400)]
config/format.txt: specify default value of format.coverLetter

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agoDoc: add more detail for git-format-patch
Denton Liu [Tue, 27 Aug 2019 04:05:17 +0000 (00:05 -0400)]
Doc: add more detail for git-format-patch

In git-format-patch.txt, we were missing some key user information.
First of all, document the special value of `--base=auto`.

Next, while we're at it, surround option arguments with <> and change
existing names such as "Message-Id" to "message id", which conforms with
how existing documentation is written.

Finally, document the `format.outputDirectory` config and change
`format.coverletter` to use camel case.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: stop losing return codes of git commands
Denton Liu [Tue, 27 Aug 2019 04:05:15 +0000 (00:05 -0400)]
t4014: stop losing return codes of git commands

Currently, there are two ways where the return codes of Git commands are
lost. The first way is when a command is in the upstream of a pipe. In a
pipe, only the return code of the last command is used. Thus, all other
commands will have their return codes masked. Rewrite pipes so that
there are no Git commands upstream.

The other way is when a command is in a non-assignment subshell. The
return code will be lost in favour of the surrounding command's. Rewrite
instances of this such that Git commands output to a file and
surrounding commands only call subshells with non-Git commands.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: remove confusing pipe in check_threading()
Denton Liu [Tue, 27 Aug 2019 04:05:12 +0000 (00:05 -0400)]
t4014: remove confusing pipe in check_threading()

In check_threading(), there was a Git command in the upstream of a pipe.
In order to not lose its status code, it was saved into a file. However,
this may be confusing so rewrite to redirect IO to file. This allows us
to directly use the conventional &&-chain.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: use test_line_count() where possible
Denton Liu [Tue, 27 Aug 2019 04:05:10 +0000 (00:05 -0400)]
t4014: use test_line_count() where possible

Convert all instances of `cnt=$(... | wc -l) && test $cnt = N` into uses
of `test_line_count()`.

While we're at it, convert one instance of a Git command upstream of a
pipe into two commands. This prevents a failure of a Git command from
being masked since only the return code of the last member of the pipe
is shown.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: let sed open its own files
Denton Liu [Tue, 27 Aug 2019 04:05:07 +0000 (00:05 -0400)]
t4014: let sed open its own files

In some cases, we were using a redirection operator to feed input into
sed. However, since sed is capable of opening its own files, make sed
open its own files instead of redirecting input into it.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: drop redirections to /dev/null
Denton Liu [Tue, 27 Aug 2019 04:05:05 +0000 (00:05 -0400)]
t4014: drop redirections to /dev/null

Since output is silenced when running without `-v` and debugging output
is useful with `-v`, remove redirections to /dev/null as it is not
useful.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: use indentable here-docs
Denton Liu [Tue, 27 Aug 2019 04:05:03 +0000 (00:05 -0400)]
t4014: use indentable here-docs

The convention is to use indentable here-docs within test cases so that
the here-docs line up with the rest of the code within the test case.
Change here-docs from `<<\EOF` to `<<-\EOF` so that they can be indented
along with the rest of the test case.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: remove spaces after redirect operators
Denton Liu [Tue, 27 Aug 2019 04:05:00 +0000 (00:05 -0400)]
t4014: remove spaces after redirect operators

For shell scripts, the usual convention is for there to be no space
after redirection operators, (e.g. `>file`, not `> file`). Remove these
spaces wherever they appear.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: use sq for test case names
Denton Liu [Tue, 27 Aug 2019 04:04:58 +0000 (00:04 -0400)]
t4014: use sq for test case names

The usual convention is for test case names to be written between
single-quotes. Change all double-quoted test case names to single-quotes
except for one test case name that uses a sq for a contraction.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: move closing sq onto its own line
Denton Liu [Tue, 27 Aug 2019 04:04:55 +0000 (00:04 -0400)]
t4014: move closing sq onto its own line

The usual convention for test cases is for the closing sq to be on its
own line. Move the sq onto its own line for cases that do not conform to
this style.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot4014: s/expected/expect/
Denton Liu [Tue, 27 Aug 2019 04:04:52 +0000 (00:04 -0400)]
t4014: s/expected/expect/

For test cases, the usual convention is to name expected output files
"expect", not "expected". Replace all instances of "expected" with
"expect", except for one case where the "expected" is used as the name
of a test case.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot3005: remove unused variable
Junio C Hamano [Thu, 5 Sep 2019 18:17:57 +0000 (11:17 -0700)]
t3005: remove unused variable

Since the beginning of the script, $new_line variable was never used.
Remove it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot: use LF variable defined in the test harness
Junio C Hamano [Tue, 3 Sep 2019 21:11:22 +0000 (14:11 -0700)]
t: use LF variable defined in the test harness

A few test scripts assign a single LF to $LF, but that is already
given by test-lib.sh to everybody.

Remove the unnecessary reassignment.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agocompat/*.[ch]: remove extern from function declarations using spatch
Denton Liu [Wed, 4 Sep 2019 11:09:48 +0000 (04:09 -0700)]
compat/*.[ch]: remove extern from function declarations using spatch

In 554544276a (*.[ch]: remove extern from function declarations using
spatch, 2019-04-29), we removed externs from function declarations using
spatch but we intentionally excluded files under compat/ since some are
directly copied from an upstream and we should avoid churning them so
that manually merging future updates will be simpler.

In the last commit, we determined the files which taken from an upstream
so we can exclude them and run spatch on the remainder.

This was the Coccinelle patch used:

@@
type T;
identifier f;
@@
- extern
  T f(...);

and it was run with:

$ git ls-files compat/\*\*.{c,h} |
xargs spatch --sp-file contrib/coccinelle/noextern.cocci --in-place
$ git checkout -- \
compat/regex/ \
compat/inet_ntop.c \
compat/inet_pton.c \
compat/nedmalloc/ \
compat/obstack.{c,h} \
compat/poll/

Coccinelle has some trouble dealing with `__attribute__` and varargs so
we ran the following to ensure that no remaining changes were left
behind:

$ git ls-files compat/\*\*.{c,h} |
xargs sed -i'' -e 's/^\(\s*\)extern \([^(]*([^*]\)/\1\2/'
$ git checkout -- \
compat/regex/ \
compat/inet_ntop.c \
compat/inet_pton.c \
compat/nedmalloc/ \
compat/obstack.{c,h} \
compat/poll/

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agomingw: apply array.cocci rule
Denton Liu [Wed, 4 Sep 2019 11:09:45 +0000 (04:09 -0700)]
mingw: apply array.cocci rule

After running Coccinelle on all sources inside compat/ that were created
by us[1], it was found that compat/mingw.c violated an array.cocci rule
in two places and, thus, a patch was generated. Apply this patch so that
all compat/ sources created by us follows all cocci rules.

[1]: Do not run Coccinelle on files that are taken from some upstream
because in case we need to pull updates from them, we would like to have
diverged as little as possible in order to make merging updates simpler.

The following sources were determined to have been taken from some
upstream:

* compat/regex/
* compat/inet_ntop.c
* compat/inet_pton.c
* compat/nedmalloc/
* compat/obstack.{c,h}
* compat/poll/

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agot3427: accelerate this test by using fast-export and fast-import
Elijah Newren [Wed, 4 Sep 2019 21:40:48 +0000 (14:40 -0700)]
t3427: accelerate this test by using fast-export and fast-import

fast-export and fast-import can easily handle the simple rewrite that
was being done by filter-branch, and should be faster on systems with a
slow fork.  Measuring the overall time taken for all of t3427 (not just
the difference between filter-branch and fast-export/fast-import) shows
a speedup of about 5% on Linux and 11% on Mac.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months ago.gitignore: stop ignoring `.manifest` files
Johannes Schindelin [Thu, 5 Sep 2019 11:16:33 +0000 (04:16 -0700)]
.gitignore: stop ignoring `.manifest` files

On Windows, it is possible to embed additional metadata into an
executable by linking in a "manifest", i.e. an XML document that
describes capabilities and requirements (such as minimum or maximum
Windows version). These XML documents are expected to be stored in
`.manifest` files.

At least _some_ Visual Studio versions auto-generate `.manifest` files
when none is specified explicitly, therefore we used to ask Git to
ignore them.

However, we do have a beautiful `.manifest` file now:
`compat/win32/git.manifest`, so neither does Visual Studio auto-generate
a manifest for us, nor do we want Git to ignore the `.manifest` files
anymore.

Further reading on auto-generated `.manifest` files:
https://docs.microsoft.com/en-us/cpp/build/manifest-generation-in-visual-studio

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agoam: reload .gitattributes after patching it
brian m. carlson [Mon, 2 Sep 2019 22:39:44 +0000 (22:39 +0000)]
am: reload .gitattributes after patching it

When applying multiple patches with git am, or when rebasing using the
am backend, it's possible that one of our patches has updated a
gitattributes file. Currently, we cache this information, so if a
file in a subsequent patch has attributes applied, the file will be
written out with the attributes in place as of the time we started the
rebase or am operation, not with the attributes applied by the previous
patch. This problem does not occur when using the -m or -i flags to
rebase.

To ensure we write the correct data into the working tree, expire the
cache after each patch that touches a path ending in ".gitattributes".
Since we load these attributes in multiple separate files, we must
expire them accordingly.

Verify that both the am and rebase code paths work correctly, including
the conflict marker size with am -3.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agotree: simplify parse_tree_indirect()
René Scharfe [Thu, 29 Aug 2019 19:06:22 +0000 (21:06 +0200)]
tree: simplify parse_tree_indirect()

Reduce code duplication by turning parse_tree_indirect() into a wrapper
of repo_peel_to_type().  This avoids a segfault when handling a broken
tag where ->tagged is NULL.  The new version also checks the return
value of parse_object() that was ignored by the old one.

Initial-patch-by: Stefan Sperling <stsp@stsp.name>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agopush: disallow --all and refspecs when remote.<name>.mirror is set
Thomas Gummerer [Mon, 2 Sep 2019 18:08:28 +0000 (19:08 +0100)]
push: disallow --all and refspecs when remote.<name>.mirror is set

Pushes with --all, or refspecs are disallowed when --mirror is given
to 'git push', or when 'remote.<name>.mirror' is set in the config of
the repository, because they can have surprising
effects. 800a4ab399 ("push: check for errors earlier", 2018-05-16)
refactored this code to do that check earlier, so we can explicitly
check for the presence of flags, instead of their sideeffects.

However when 'remote.<name>.mirror' is set in the config, the
TRANSPORT_PUSH_MIRROR flag would only be set after we calling
'do_push()', so the checks would miss it entirely.

This leads to surprises for users [*1*].

Fix this by making sure we set the flag (if appropriate) before
checking for compatibility of the various options.

*1*: https://twitter.com/FiloSottile/status/1163918701462249472

Reported-by: Filippo Valsorda <filippo@ml.filippo.io>
Helped-by: Saleem Rashid
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agomerge-options.txt: clarify meaning of various ff-related options
Elijah Newren [Sat, 31 Aug 2019 00:23:13 +0000 (17:23 -0700)]
merge-options.txt: clarify meaning of various ff-related options

As discovered on the mailing list, some of the descriptions of the
ff-related options were unclear.  Try to be more precise with what these
options do.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agoclarify documentation for remote helpers
David Turner [Fri, 30 Aug 2019 20:12:18 +0000 (16:12 -0400)]
clarify documentation for remote helpers

Signed-off-by: David Turner <dturner@twosigma.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agohelp: make help_unknown_ref() NORETURN
René Scharfe [Thu, 29 Aug 2019 19:13:16 +0000 (21:13 +0200)]
help: make help_unknown_ref() NORETURN

Announce that calling help_unknown_ref() exits the program.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
14 months agocheckout: add simple check for 'git checkout -b'
Derrick Stolee [Thu, 29 Aug 2019 17:01:32 +0000 (10:01 -0700)]
checkout: add simple check for 'git checkout -b'

The 'git switch' command was created to separate half of the
behavior of 'git checkout'. It specifically has the mode to
do nothing with the index and working directory if the user
only specifies to create a new branch and change HEAD to that
branch. This is also the behavior most users expect from
'git checkout -b', but for historical reasons it also performs
an index update by scanning the working directory. This can be
slow for even moderately-sized repos.

A performance fix for 'git checkout -b' was introduced by
fa655d8411 (checkout: optimize "git checkout -b <new_branch>"
2018-08-16). That change includes details about the config
setting checkout.optimizeNewBranch when the sparse-checkout
feature is required. The way this change detected if this
behavior change is safe was through the skip_merge_working_tree()
method. This method was complex and needed to be updated
as new options were introduced.

This behavior was essentially reverted by 65f099b ("switch:
no worktree status unless real branch switch happens"
2019-03-29). Instead, two members of the checkout_opts struct
were used to distinguish between 'git checkout' and 'git switch':

    * switch_branch_doing_nothing_is_ok
    * only_merge_on_switching_branches

These settings have opposite values depending on if we start
in cmd_checkout or cmd_switch.

The message for 64f099b includes "Users of big repos are
encouraged to move to switch." Making this change while
'git switch' is still experimental is too aggressive.

Create a happy medium between these two options by making
'git checkout -b <branch>' behave just like 'git switch',
but only if we read exactly those arguments. This must
be done in cmd_checkout to avoid the arguments being
consumed by the option parsing logic.

This differs from the previous change by fa644d8 in that
the config option checkout.optimizeNewBranch remains
deleted. This means that 'git checkout -b' will ignore
the index merge even if we have a sparse-checkout file.
While this is a behavior change for 'git checkout -b',
it matches the behavior of 'git switch -c'.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Acked-by: Elijah Newren <newren@gmail.com>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
15 months agogitk: Make web links clickable
Paul Mackerras [Mon, 26 Aug 2019 22:12:34 +0000 (08:12 +1000)]
gitk: Make web links clickable

This makes gitk look for http or https URLs in the commit description
and make the URLs clickable.  Clicking on them will invoke an external
web browser with the URL.

The web browser command is by default "xdg-open" on Linux, "open" on
MacOS, and "cmd /c start" on Windows.  The command can be changed in
the preferences window, and it can include parameters as well as the
command name.  If it is set to the empty string then URLs will no
longer be made clickable.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
15 months agogit-gui: allow undoing last revert
Pratyush Yadav [Sun, 25 Aug 2019 20:13:23 +0000 (01:43 +0530)]
git-gui: allow undoing last revert

Accidental clicks on the revert hunk/lines buttons can cause loss of
work, and can be frustrating. So, allow undoing the last revert.

Right now, a stack or deque are not being used for the sake of
simplicity, so only one undo is possible. Any reverts before the
previous one are lost.

Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
15 months agofast-import: duplicate into history rather than passing ownership
Jeff King [Sun, 25 Aug 2019 08:10:55 +0000 (04:10 -0400)]
fast-import: duplicate into history rather than passing ownership

Fast-import's read_next_command() has somewhat odd memory ownership
semantics for the command_buf strbuf. After reading a command, we copy
the strbuf's pointer (without duplicating the string) into our cmd_hist
array of recent commands. And then when we're about to read a new
command, we clear the strbuf by calling strbuf_detach(), dropping
ownership from the strbuf (leaving the cmd_hist reference as the
remaining owner).

This has a few surprising implications:

  - if the strbuf hasn't been copied into cmd_hist (e.g., because we
    haven't ready any commands yet), then the strbuf_detach() will leak
    the resulting string

  - any modification to command_buf risks invalidating the pointer held
    by cmd_hist. There doesn't seem to be any way to trigger this
    currently (since we tend to modify it only by detaching and reading
    in a new value), but it's subtly dangerous.

  - any pointers into an input string will remain valid as long as
    cmd_hist points to them. So in general, you can point into
    command_buf.buf and call read_next_command() up to 100 times before
    your string is cycled out and freed, leaving you with a dangling
    pointer. This makes it easy to miss bugs during testing, as they
    might trigger only for a sufficiently large commit (e.g., the bug
    fixed in the previous commit).

Instead, let's make a new string to copy the command into the history
array, rather than having dual ownership with the old. Then we can drop
the strbuf_detach() calls entirely, and just reuse the same buffer
within command_buf over and over. We'd normally have to strbuf_reset()
it before using it again, but in both cases here we're using
strbuf_getline(), which does it automatically for us.

This fixes the leak, and it means that even a single call to
read_next_command() will invalidate any held pointers, making it easier
to find bugs. In fact, we can drop the extra input lines added to the
test case by the previous commit, as the unfixed bug would now trigger
just from reading the commit message, even without any modified files in
the commit.

Reported-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
15 months agofast-import: duplicate parsed encoding string
Jeff King [Sun, 25 Aug 2019 08:08:21 +0000 (04:08 -0400)]
fast-import: duplicate parsed encoding string

We read each line of the fast-import stream into the command_buf strbuf.
When reading a commit, we parse a line like "encoding foo" by storing a
pointer to "foo", but not making a copy. We may then read an unbounded
number of other lines (e.g., one for each modified file in the commit),
each of which writes into command_buf.

This works out in practice for small cases, because we hand off
ownership of the heap buffer from command_buf to the cmd_hist array, and
read new commands into a fresh heap buffer. And thus the pointer to
"foo" remains valid as long as there aren't so many intermediate lines
that we end up dropping the original "encoding" line from the history.

But as the test modification shows, if we go over our default of 100
lines, we end up with our encoding string pointing into freed heap
memory. This seems to fail reliably by writing garbage into the output,
but running under ASan definitely detects this as a use-after-free.

We can fix it by duplicating the encoding value, just as we do for other
parsed lines (e.g., an author line ends up in parse_ident, which copies
it to a new string).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
15 months agotrace2: use warning() directly in tr2_dst_malformed_warning()
René Scharfe [Sun, 25 Aug 2019 17:44:10 +0000 (19:44 +0200)]
trace2: use warning() directly in tr2_dst_malformed_warning()

Let warning() format the message instead of using an intermediate strbuf
for that.  This is shorter, easier to read and avoids an allocation.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
15 months agogrep: use return value of strbuf_detach()
René Scharfe [Sun, 25 Aug 2019 13:26:40 +0000 (15:26 +0200)]
grep: use return value of strbuf_detach()

Append the strbuf buffer only after detaching it.  There is no practical
difference here, as the strbuf is not empty and no strbuf_ function is
called between storing the pointer to the still attached buffer and
calling strbuf_detach(), so that pointer is valid, but make sure to
follow the standard sequence anyway for consistency.

Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
15 months agolog-tree: always use return value of strbuf_detach()
René Scharfe [Sun, 25 Aug 2019 12:53:26 +0000 (14:53 +0200)]
log-tree: always use return value of strbuf_detach()

strbuf_detach() has been returning a pointer to a buffer even for empty
strbufs since 08ad56f3f0 ("strbuf: always return a non-NULL value from
strbuf_detach", 2012-10-18).  Use that feature in show_log() instead of
having it handle empty strbufs specially.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
15 months agohttp: don't leak urlmatch_config.vars
Mike Hommey [Mon, 26 Aug 2019 07:49:11 +0000 (16:49 +0900)]
http: don't leak urlmatch_config.vars

Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
15 months agocommit: free the right buffer in release_commit_memory
Mike Hommey [Mon, 26 Aug 2019 02:01:37 +0000 (11:01 +0900)]
commit: free the right buffer in release_commit_memory

The index field in the commit object is used to find the buffer
corresponding to that commit in the buffer_slab. Resetting it first
means free_commit_buffer is not going to free the right buffer.

Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
15 months agopath: add a function to check for path suffix
brian m. carlson [Sun, 25 Aug 2019 23:33:39 +0000 (23:33 +0000)]
path: add a function to check for path suffix

We have a function to strip the path suffix from a commit, but we don't
have one to check for a path suffix. For a plain filename, we can use
basename, but that requires an allocation, since POSIX allows it to
modify its argument. Refactor strip_path_suffix into a helper function
and a new function, ends_with_path_components, to meet this need.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>