Commit Graph

12420 Commits

Author SHA1 Message Date
Junio C Hamano
71a7de7a99 Merge branch 'dl/rebase-with-autobase'
"git rebase" did not work well when format.useAutoBase
configuration variable is set, which has been corrected.

* dl/rebase-with-autobase:
  rebase: fix format.useAutoBase breakage
  format-patch: teach --no-base
  t4014: use test_config()
  format-patch: fix indentation
  t3400: demonstrate failure with format.useAutoBase
2019-12-16 13:08:32 -08:00
ryenus
571fb96573 fix-typo: consecutive-word duplications
Correct unintentional duplication(s) of words, such as "the the",
and "can can" etc.

The changes are only applied to cases where it's fixing what is clearly
wrong or prone to misunderstanding, as suggested by the reviewers.

Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Denton Liu <liu.denton@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: ryenus <ryenus@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-16 11:53:11 -08:00
Jean-Noël Avila
df5be01669 doc: indent multi-line items in list
Although Asciidoc allows to not indent following lines in a list item,
it is clearer and safer to follow the recommended rule.

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-13 12:18:07 -08:00
Jean-Noël Avila
fd5041e127 doc: remove non pure ASCII characters
Non ASCII characters may be handled by publishing chains, but right
now, nothing indicates the encoding of files. Moreover, non ASCII
source strings upset the localization toolchain.

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-13 12:18:05 -08:00
Derrick Stolee
190a65f9db sparse-checkout: respect core.ignoreCase in cone mode
When a user uses the sparse-checkout feature in cone mode, they
add patterns using "git sparse-checkout set <dir1> <dir2> ..."
or by using "--stdin" to provide the directories line-by-line over
stdin. This behaviour naturally looks a lot like the way a user
would type "git add <dir1> <dir2> ..."

If core.ignoreCase is enabled, then "git add" will match the input
using a case-insensitive match. Do the same for the sparse-checkout
feature.

Perform case-insensitive checks while updating the skip-worktree
bits during unpack_trees(). This is done by changing the hash
algorithm and hashmap comparison methods to optionally use case-
insensitive methods.

When this is enabled, there is a small performance cost in the
hashing algorithm. To tease out the worst possible case, the
following was run on a repo with a deep directory structure:

	git ls-tree -d -r --name-only HEAD |
		git sparse-checkout set --stdin

The 'set' command was timed with core.ignoreCase disabled or
enabled. For the repo with a deep history, the numbers were

	core.ignoreCase=false: 62s
	core.ignoreCase=true:  74s (+19.3%)

For reproducibility, the equivalent test on the Linux kernel
repository had these numbers:

	core.ignoreCase=false: 3.1s
	core.ignoreCase=true:  3.6s (+16%)

Now, this is not an entirely fair comparison, as most users
will define their sparse cone using more shallow directories,
and the performance improvement from eb42feca97 ("unpack-trees:
hash less in cone mode" 2019-11-21) can remove most of the
hash cost. For a more realistic test, drop the "-r" from the
ls-tree command to store only the first-level directories.
In that case, the Linux kernel repository takes 0.2-0.25s in
each case, and the deep repository takes one second, plus or
minus 0.05s, in each case.

Thus, we _can_ demonstrate a cost to this change, but it is
unlikely to matter to any reasonable sparse-checkout cone.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-13 12:01:02 -08:00
Denton Liu
66f79ee23d config/format.txt: clarify behavior of multiple format.notes
In 8164c961e1 (format-patch: use --notes behavior for format.notes,
2019-12-09), we slightly tweaked the behavior of having multiple
`format.notes` configuration variables. We did not update the
documentation to reflect this, however.

Explictly state the behavior of having multiple `format.notes`
configuration variables so users are clear on what to expect.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-13 11:07:00 -08:00
Philippe Blain
cc2bd5c45d gitmodules: link to gitsubmodules guide
Presently in the manpages git-submodule[1] links to gitsubmodules[7]
and gitmodules[5], gitsubmodules[7] links to git-submodule[1] and gitmodules[5],
but gitmodules[5] only link to git-submodule[1] (and git-config[1]).

Add a link to gitsubmodules[7] in gitmodules[5], so that a person
stumbling upon gitmodules[5] can quickly access gitsubmodules[7],
which has a more high-level overview of submodule usage.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-11 13:49:23 -08:00
Junio C Hamano
ad05a3d8e5 The fifth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-10 14:39:55 -08:00
Junio C Hamano
41dac79c2f Merge branch 'ds/commit-graph-delay-gen-progress'
One kind of progress messages were always given during commit-graph
generation, instead of following the "if it takes more than two
seconds, show progress" pattern, which has been corrected.

* ds/commit-graph-delay-gen-progress:
  commit-graph: use start_delayed_progress()
  progress: create GIT_PROGRESS_DELAY
2019-12-10 13:11:43 -08:00
Junio C Hamano
5dd1d59d35 Merge branch 'jt/clone-recursesub-ref-advise'
The interaction between "git clone --recurse-submodules" and
alternate object store was ill-designed.  The documentation and
code have been taught to make more clear recommendations when the
users see failures.

* jt/clone-recursesub-ref-advise:
  submodule--helper: advise on fatal alternate error
  Doc: explain submodule.alternateErrorStrategy
2019-12-10 13:11:43 -08:00
Junio C Hamano
d37cfe3b5c Merge branch 'dl/pretty-reference'
"git log" family learned "--pretty=reference" that gives the name
of a commit in the format that is often used to refer to it in log
messages.

* dl/pretty-reference:
  SubmittingPatches: use `--pretty=reference`
  pretty: implement 'reference' format
  pretty: add struct cmt_fmt_map::default_date_mode_type
  pretty: provide short date format
  t4205: cover `git log --reflog -z` blindspot
  pretty.c: inline initalize format_context
  revision: make get_revision_mark() return const pointer
  completion: complete `tformat:` pretty format
  SubmittingPatches: remove dq from commit reference
  pretty-formats.txt: use generic terms for hash
  SubmittingPatches: use generic terms for hash
2019-12-10 13:11:43 -08:00
Junio C Hamano
99c4ff1bda Merge branch 'dl/submodule-set-url'
"git submodule" learned a subcommand "set-url".

* dl/submodule-set-url:
  submodule: teach set-url subcommand
2019-12-10 13:11:42 -08:00
Junio C Hamano
55d607d85b Merge branch 'js/mingw-inherit-only-std-handles'
Work around a issue where a FD that is left open when spawning a
child process and is kept open in the child can interfere with the
operation in the parent process on Windows.

* js/mingw-inherit-only-std-handles:
  mingw: forbid translating ERROR_SUCCESS to an errno value
  mingw: do set `errno` correctly when trying to restrict handle inheritance
  mingw: restrict file handle inheritance only on Windows 7 and later
  mingw: spawned processes need to inherit only standard handles
  mingw: work around incorrect standard handles
  mingw: demonstrate that all file handles are inherited by child processes
2019-12-10 13:11:42 -08:00
Junio C Hamano
c58ae96fc4 Merge branch 'am/pathspec-from-file'
A few commands learned to take the pathspec from the
standard input or a named file, instead of taking it as the command
line arguments.

* am/pathspec-from-file:
  commit: support the --pathspec-from-file option
  doc: commit: synchronize <pathspec> description
  reset: support the `--pathspec-from-file` option
  doc: reset: synchronize <pathspec> description
  pathspec: add new function to parse file
  parse-options.h: add new options `--pathspec-from-file`, `--pathspec-file-nul`
2019-12-10 13:11:41 -08:00
Junio C Hamano
7c88714262 Merge branch 'po/bundle-doc-clonable'
Doc update.

* po/bundle-doc-clonable:
  Doc: Bundle file usage
2019-12-10 13:11:41 -08:00
Junio C Hamano
5d9324e0f4 Merge branch 'ra/rebase-i-more-options'
"git rebase -i" learned a few options that are known by "git
rebase" proper.

* ra/rebase-i-more-options:
  rebase -i: finishing touches to --reset-author-date
  rebase: add --reset-author-date
  rebase -i: support --ignore-date
  sequencer: rename amend_author to author_to_rename
  rebase -i: support --committer-date-is-author-date
  sequencer: allow callers of read_author_script() to ignore fields
  rebase -i: add --ignore-whitespace flag
2019-12-10 13:11:41 -08:00
Junio C Hamano
7034cd094b Sync with Git 2.24.1 2019-12-09 22:17:55 -08:00
Junio C Hamano
559c6fc317 The fourth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-06 15:10:00 -08:00
Junio C Hamano
56e6c16394 Merge branch 'dl/lore-is-the-archive'
Publicize lore.kernel.org mailing list archive and use URLs
pointing into it to refer to notable messages in the documentation.

* dl/lore-is-the-archive:
  doc: replace LKML link with lore.kernel.org
  RelNotes: replace Gmane with real Message-IDs
  doc: replace MARC links with lore.kernel.org
2019-12-06 15:09:24 -08:00
Junio C Hamano
3b3d9ea6a8 Merge branch 'jk/lore-is-the-archive'
Doc update for the mailing list archiving and nntp service.

* jk/lore-is-the-archive:
  doc: replace public-inbox links with lore.kernel.org
  doc: recommend lore.kernel.org over public-inbox.org
2019-12-06 15:09:23 -08:00
Johannes Schindelin
53a06cf39b Git 2.24.1
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:31:40 +01:00
Johannes Schindelin
67af91c47a Sync with 2.23.1
* maint-2.23: (44 commits)
  Git 2.23.1
  Git 2.22.2
  Git 2.21.1
  mingw: sh arguments need quoting in more circumstances
  mingw: fix quoting of empty arguments for `sh`
  mingw: use MSYS2 quoting even when spawning shell scripts
  mingw: detect when MSYS2's sh is to be spawned more robustly
  t7415: drop v2.20.x-specific work-around
  Git 2.20.2
  t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  ...
2019-12-06 16:31:39 +01:00
Johannes Schindelin
a7312d1a28 Git 2.23.1
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:31:32 +01:00
Johannes Schindelin
7fd9fd94fb Sync with 2.22.2
* maint-2.22: (43 commits)
  Git 2.22.2
  Git 2.21.1
  mingw: sh arguments need quoting in more circumstances
  mingw: fix quoting of empty arguments for `sh`
  mingw: use MSYS2 quoting even when spawning shell scripts
  mingw: detect when MSYS2's sh is to be spawned more robustly
  t7415: drop v2.20.x-specific work-around
  Git 2.20.2
  t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  ...
2019-12-06 16:31:30 +01:00
Johannes Schindelin
d9589d4051 Git 2.22.2
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:31:24 +01:00
Johannes Schindelin
5421ddd8d0 Sync with 2.21.1
* maint-2.21: (42 commits)
  Git 2.21.1
  mingw: sh arguments need quoting in more circumstances
  mingw: fix quoting of empty arguments for `sh`
  mingw: use MSYS2 quoting even when spawning shell scripts
  mingw: detect when MSYS2's sh is to be spawned more robustly
  t7415: drop v2.20.x-specific work-around
  Git 2.20.2
  t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  ...
2019-12-06 16:31:23 +01:00
Johannes Schindelin
367f12b7e9 Git 2.21.1
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:31:15 +01:00
Johannes Schindelin
fc346cb292 Sync with 2.20.2
* maint-2.20: (36 commits)
  Git 2.20.2
  t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  ...
2019-12-06 16:31:12 +01:00
Johannes Schindelin
4cd1cf31ef Git 2.20.2
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:30:51 +01:00
Johannes Schindelin
d851d94151 Sync with 2.19.3
* maint-2.19: (34 commits)
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  ...
2019-12-06 16:30:49 +01:00
Johannes Schindelin
caccc527ca Git 2.19.3
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:30:40 +01:00
Johannes Schindelin
7c9fbda6e2 Sync with 2.18.2
* maint-2.18: (33 commits)
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  ...
2019-12-06 16:30:38 +01:00
Johannes Schindelin
9877106b01 Git 2.18.2
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:29:17 +01:00
Johannes Schindelin
14af7ed5a9 Sync with 2.17.3
* maint-2.17: (32 commits)
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  mingw: disallow backslash characters in tree objects' file names
  ...
2019-12-06 16:29:15 +01:00
Johannes Schindelin
a5ab8d0317 Git 2.17.3
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:27:38 +01:00
Johannes Schindelin
bdfef0492c Sync with 2.16.6
* maint-2.16: (31 commits)
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  mingw: disallow backslash characters in tree objects' file names
  path: safeguard `.git` against NTFS Alternate Streams Accesses
  ...
2019-12-06 16:27:36 +01:00
Johannes Schindelin
eb288bc455 Git 2.16.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:27:20 +01:00
Johannes Schindelin
9ac92fed5b Sync with 2.15.4
* maint-2.15: (29 commits)
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  mingw: disallow backslash characters in tree objects' file names
  path: safeguard `.git` against NTFS Alternate Streams Accesses
  clone --recurse-submodules: prevent name squatting on Windows
  is_ntfs_dotgit(): only verify the leading segment
  ...
2019-12-06 16:27:18 +01:00
Johannes Schindelin
7cdafcaacf Git 2.15.4
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:26:58 +01:00
Jonathan Nieder
e904deb89d submodule: reject submodule.update = !command in .gitmodules
Since ac1fbbda20 (submodule: do not copy unknown update mode from
.gitmodules, 2013-12-02), Git has been careful to avoid copying

	[submodule "foo"]
		update = !run an arbitrary scary command

from .gitmodules to a repository's local config, copying in the
setting 'update = none' instead.  The gitmodules(5) manpage documents
the intention:

	The !command form is intentionally ignored here for security
	reasons

Unfortunately, starting with v2.20.0-rc0 (which integrated ee69b2a9
(submodule--helper: introduce new update-module-mode helper,
2018-08-13, first released in v2.20.0-rc0)), there are scenarios where
we *don't* ignore it: if the config store contains no
submodule.foo.update setting, the submodule-config API falls back to
reading .gitmodules and the repository-supplied !command gets run
after all.

This was part of a general change over time in submodule support to
read more directly from .gitmodules, since unlike .git/config it
allows a project to change values between branches and over time
(while still allowing .git/config to override things).  But it was
never intended to apply to this kind of dangerous configuration.

The behavior change was not advertised in ee69b2a9's commit message
and was missed in review.

Let's take the opportunity to make the protection more robust, even in
Git versions that are technically not affected: instead of quietly
converting 'update = !command' to 'update = none', noisily treat it as
an error.  Allowing the setting but treating it as meaning something
else was just confusing; users are better served by seeing the error
sooner.  Forbidding the construct makes the semantics simpler and
means we can check for it in fsck (in a separate patch).

As a result, the submodule-config API cannot read this value from
.gitmodules under any circumstance, and we can declare with confidence

	For security reasons, the '!command' form is not accepted
	here.

Reported-by: Joern Schneeweisz <jschneeweisz@gitlab.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
2019-12-06 16:26:58 +01:00
Johannes Schindelin
d3ac8c3f27 Sync with 2.14.6
* maint-2.14: (28 commits)
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  mingw: disallow backslash characters in tree objects' file names
  path: safeguard `.git` against NTFS Alternate Streams Accesses
  clone --recurse-submodules: prevent name squatting on Windows
  is_ntfs_dotgit(): only verify the leading segment
  test-path-utils: offer to run a protectNTFS/protectHFS benchmark
  ...
2019-12-06 16:26:55 +01:00
Johannes Schindelin
66d2a6159f Git 2.14.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-06 16:26:15 +01:00
Junio C Hamano
083378cc35 The third batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-05 12:52:49 -08:00
Junio C Hamano
57d46bc602 Merge branch 'mg/doc-submodule-status-cached'
"git submodule status" and "git submodule status --cached" show
different things, but the documentation did not cover them
correctly, which has been corrected.

* mg/doc-submodule-status-cached:
  doc: document 'git submodule status --cached'
2019-12-05 12:52:47 -08:00
Junio C Hamano
75bd003c7b Merge branch 'js/git-svn-use-rebase-merges'
Prepare further for "rebase --preserve-merges" deprecation.

* js/git-svn-use-rebase-merges:
  git svn: stop using `rebase --preserve-merges`
2019-12-05 12:52:46 -08:00
Junio C Hamano
36fd304d81 Merge branch 'jk/fail-show-toplevel-outside-working-tree'
"git rev-parse --show-toplevel" run outside of any working tree did
not error out, which has been corrected.

* jk/fail-show-toplevel-outside-working-tree:
  rev-parse: make --show-toplevel without a worktree an error
2019-12-05 12:52:45 -08:00
Junio C Hamano
ef6104581d Merge branch 'pb/submodule-update-fetches'
Doc update.

* pb/submodule-update-fetches:
  doc: mention that 'git submodule update' fetches missing commits
2019-12-05 12:52:45 -08:00
Junio C Hamano
f3c7bfdde2 Merge branch 'dl/range-diff-with-notes'
"git range-diff" learned to take the "--notes=<ref>" and the
"--no-notes" options to control the commit notes included in the
log message that gets compared.

* dl/range-diff-with-notes:
  format-patch: pass notes configuration to range-diff
  range-diff: pass through --notes to `git log`
  range-diff: output `## Notes ##` header
  t3206: range-diff compares logs with commit notes
  t3206: s/expected/expect/
  t3206: disable parameter substitution in heredoc
  t3206: remove spaces after redirect operators
  pretty-options.txt: --notes accepts a ref instead of treeish
  rev-list-options.txt: remove reference to --show-notes
  argv-array: add space after `while`
2019-12-05 12:52:44 -08:00
Junio C Hamano
f7998d9793 Merge branch 'js/builtin-add-i'
The beginning of rewriting "git add -i" in C.

* js/builtin-add-i:
  built-in add -i: implement the `help` command
  built-in add -i: use color in the main loop
  built-in add -i: support `?` (prompt help)
  built-in add -i: show unique prefixes of the commands
  built-in add -i: implement the main loop
  built-in add -i: color the header in the `status` command
  built-in add -i: implement the `status` command
  diff: export diffstat interface
  Start to implement a built-in version of `git add --interactive`
2019-12-05 12:52:43 -08:00
Denton Liu
945dc55dda format-patch: teach --no-base
If `format.useAutoBase = true`, there was no way to override this from
the command-line. Teach the `--no-base` option in format-patch to
override `format.useAutoBase`.

Helped-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-05 06:06:18 -08:00
Denton Liu
14b7664df8 doc: replace LKML link with lore.kernel.org
Since we're now recommending lore.kernel.org, replace LKML link
with lore.kernel.org.

Although LKML has been around for a long time, nothing lasts forever
(see Gmane). Since LKML uses opaque message identifiers, switching to
lore.kernel.org should be a strict improvement since, even if
lore.kernel.org goes down, the Message-ID will allow future readers to
look up the referenced messages on any other archive.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:26:52 -08:00
Denton Liu
d23f9c8e04 RelNotes: replace Gmane with real Message-IDs
The only references to Gmane that remain are in RelNotes. Although these
are definitely not in active use, they might be of historical interest
for future readers so let's ensure that mail references are more robust.

Replace links to Gmane with links to lore.kernel.org (which is our new
preferred mailing list archive and has the Message-ID in the URL) and
bare Gmane ID references with Message-IDs.

The Message-IDs were found by searching for "gmane:<id>" on
https://public-inbox.org/git/ and taking the resulting message.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:26:13 -08:00
Denton Liu
dcee037228 doc: replace MARC links with lore.kernel.org
Since we're now recommending lore.kernel.org, replace marc.info links
with lore.kernel.org.

Although MARC has been around for a long time, nothing lasts forever
(see Gmane). Since MARC uses opaque message identifiers, switching to
lore.kernel.org should be a strict improvement since, even if
lore.kernel.org goes down, the Message-ID will allow future readers to
look up the referenced messages on any other archive.

We leave behind one reference to MARC in the README.md since it's a
perfectly fine mail archive for personal reading, just not for linking
messages for the future.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:20:08 -08:00
Alexandr Miloslavskiy
a9aecc7abb checkout, restore: support the --pathspec-from-file option
Decisions taken for simplicity:
1) For now, `--pathspec-from-file` is declared incompatible with
   `--patch`, even when <file> is not `stdin`. Such use case it not
   really expected.
2) It is not allowed to pass pathspec in both args and file.

`you must specify path(s) to restore` block was moved down to be able to
test for `pathspec.nr` instead, because testing for `argc` is no longer
correct.

`git switch` does not support the new options because it doesn't expect
`<pathspec>` arguments.

Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:10:37 -08:00
Alexandr Miloslavskiy
cfd9376c1d doc: restore: synchronize <pathspec> description
`git add` shows an example of good writing, follow it.

Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:10:37 -08:00
Alexandr Miloslavskiy
8ea1189eac doc: checkout: synchronize <pathspec> description
`git add` shows an example of good writing, follow it.

Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:10:37 -08:00
Alexandr Miloslavskiy
6fdc9ad259 doc: checkout: fix broken text reference
Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:10:37 -08:00
Alexandr Miloslavskiy
1d022bb43f doc: checkout: remove duplicate synopsis
It was added in [1]. I understand that the duplicate change was not
intentional and comes from an oversight.

Also, in explanation, there was only one section for two synopsis
entries.

Fix both problems by removing duplicate synopsis.

<paths> vs <pathspec> is resolved in next patch.

[1] Commit b59698ae ("checkout doc: clarify command line args for "checkout paths" mode" 2017-10-11)

Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:10:37 -08:00
Alexandr Miloslavskiy
bebb5d6d6b add: support the --pathspec-from-file option
Decisions taken for simplicity:
1) For now, `--pathspec-from-file` is declared incompatible with
   `--interactive/--patch/--edit`, even when <file> is not `stdin`.
   Such use case it not really expected. Also, it would require changes
   to `interactive_add()` and `edit_patch()`.
2) It is not allowed to pass pathspec in both args and file.

Signed-off-by: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-04 10:10:37 -08:00
Jeff King
a52ed76142 fast-import: disallow "feature import-marks" by default
As with export-marks in the previous commit, import-marks can access the
filesystem. This is significantly less dangerous than export-marks
because it only involves reading from arbitrary paths, rather than
writing them. However, it could still be surprising and have security
implications (e.g., exfiltrating data from a service that accepts
fast-import streams).

Let's lump it (and its "if-exists" counterpart) in with export-marks,
and enable the in-stream version only if --allow-unsafe-features is set.

Signed-off-by: Jeff King <peff@peff.net>
2019-12-04 13:20:04 +01:00
Jeff King
68061e3470 fast-import: disallow "feature export-marks" by default
The fast-import stream command "feature export-marks=<path>" lets the
stream write marks to an arbitrary path. This may be surprising if you
are running fast-import against an untrusted input (which otherwise
cannot do anything except update Git objects and refs).

Let's disallow the use of this feature by default, and provide a
command-line option to re-enable it (you can always just use the
command-line --export-marks as well, but the in-stream version provides
an easy way for exporters to control the process).

This is a backwards-incompatible change, since the default is flipping
to the new, safer behavior. However, since the main users of the
in-stream versions would be import/export-based remote helpers, and
since we trust remote helpers already (which are already running
arbitrary code), we'll pass the new option by default when reading a
remote helper's stream. This should minimize the impact.

Note that the implementation isn't totally simple, as we have to work
around the fact that fast-import doesn't parse its command-line options
until after it has read any "feature" lines from the stream. This is how
it lets command-line options override in-stream. But in our case, it's
important to parse the new --allow-unsafe-features first.

There are three options for resolving this:

  1. Do a separate "early" pass over the options. This is easy for us to
     do because there are no command-line options that allow the
     "unstuck" form (so there's no chance of us mistaking an argument
     for an option), though it does introduce a risk of incorrect
     parsing later (e.g,. if we convert to parse-options).

  2. Move the option parsing phase back to the start of the program, but
     teach the stream-reading code never to override an existing value.
     This is tricky, because stream "feature" lines override each other
     (meaning we'd have to start tracking the source for every option).

  3. Accept that we might parse a "feature export-marks" line that is
     forbidden, as long we don't _act_ on it until after we've parsed
     the command line options.

     This would, in fact, work with the current code, but only because
     the previous patch fixed the export-marks parser to avoid touching
     the filesystem.

     So while it works, it does carry risk of somebody getting it wrong
     in the future in a rather subtle and unsafe way.

I've gone with option (1) here as simple, safe, and unlikely to cause
regressions.

This fixes CVE-2019-1348.

Signed-off-by: Jeff King <peff@peff.net>
2019-12-04 13:20:04 +01:00
Jonathan Tan
4f3e57ef13 submodule--helper: advise on fatal alternate error
When recursively cloning a superproject with some shallow modules
defined in its .gitmodules, then recloning with "--reference=<path>", an
error occurs. For example:

  git clone --recurse-submodules --branch=master -j8 \
    https://android.googlesource.com/platform/superproject \
    master
  git clone --recurse-submodules --branch=master -j8 \
    https://android.googlesource.com/platform/superproject \
    --reference master master2

fails with:

  fatal: submodule '<snip>' cannot add alternate: reference repository
  '<snip>' is shallow

When a alternate computed from the superproject's alternate cannot be
added, whether in this case or another, advise about configuring the
"submodule.alternateErrorStrategy" configuration option and using
"--reference-if-able" instead of "--reference" when cloning.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-03 08:49:45 -08:00
Jonathan Tan
10c64a0b3c Doc: explain submodule.alternateErrorStrategy
Commit 31224cbdc7 ("clone: recursive and reference option triggers
submodule alternates", 2016-08-17) taught Git to support the
configuration options "submodule.alternateLocation" and
"submodule.alternateErrorStrategy" on a superproject.

If "submodule.alternateLocation" is configured to "superproject" on a
superproject, whenever a submodule of that superproject is cloned, it
instead computes the analogous alternate path for that submodule from
$GIT_DIR/objects/info/alternates of the superproject, and references it.

The "submodule.alternateErrorStrategy" option determines what happens
if that alternate cannot be referenced. However, it is not clear that
the clone proceeds as if no alternate was specified when that option is
not set to "die" (as can be seen in the tests in 31224cbdc7). Therefore,
document it accordingly.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-03 08:49:41 -08:00
Junio C Hamano
228f53135a The second batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-01 09:04:41 -08:00
Junio C Hamano
723a8adba5 Merge branch 'ds/test-read-graph'
Dev support for commit-graph feature.

* ds/test-read-graph:
  test-tool: use 'read-graph' helper
2019-12-01 09:04:39 -08:00
Junio C Hamano
43c5fe1c1d Merge branch 'nn/doc-rebase-merges'
Doc update.

* nn/doc-rebase-merges:
  doc: improve readability of --rebase-merges in git-rebase
2019-12-01 09:04:37 -08:00
Junio C Hamano
a774064fb0 Merge branch 'dj/typofix-merge-strat'
Typofix.

* dj/typofix-merge-strat:
  merge-strategies: fix typo "reflected to" to "reflected in"
2019-12-01 09:04:36 -08:00
Junio C Hamano
ca5c8aa8e1 Merge branch 'rj/bundle-ui-updates'
"git bundle" has been taught to use the parse options API.  "git
bundle verify" learned "--quiet" and "git bundle create" learned
options to control the progress output.

* rj/bundle-ui-updates:
  bundle-verify: add --quiet
  bundle-create: progress output control
  bundle: framework for options before bundle file
2019-12-01 09:04:36 -08:00
Junio C Hamano
376e7309e1 Merge branch 'ln/userdiff-elixir'
The patterns to detect function boundary for Elixir language has
been added.

* ln/userdiff-elixir:
  userdiff: add Elixir to supported userdiff languages
2019-12-01 09:04:36 -08:00
Junio C Hamano
9a5d34c6dc Merge branch 'py/shortlog-list-options-for-log'
Documentation pages for "git shortlog" now lists commit limiting
options explicitly.

* py/shortlog-list-options-for-log:
  git-shortlog.txt: include commit limiting options
2019-12-01 09:04:35 -08:00
Junio C Hamano
d3096d2ba6 Merge branch 'en/doc-typofix'
Docfix.

* en/doc-typofix:
  Fix spelling errors in no-longer-updated-from-upstream modules
  multimail: fix a few simple spelling errors
  sha1dc: fix trivial comment spelling error
  Fix spelling errors in test commands
  Fix spelling errors in messages shown to users
  Fix spelling errors in names of tests
  Fix spelling errors in comments of testcases
  Fix spelling errors in code comments
  Fix spelling errors in documentation outside of Documentation/
  Documentation: fix a bunch of typos, both old and new
2019-12-01 09:04:35 -08:00
Junio C Hamano
5149902ff9 Merge branch 'en/misc-doc-fixes'
Misc doc fixes.

* en/misc-doc-fixes:
  name-hash.c: remove duplicate word in comment
  hashmap: fix documentation misuses of -> versus .
  git-filter-branch.txt: correct argument name typo
2019-12-01 09:04:34 -08:00
Junio C Hamano
bcb06e204c Merge branch 'js/fetch-multi-lockfix'
Fetching from multiple remotes into the same repository in parallel
had a bad interaction with the recent change to (optionally) update
the commit-graph after a fetch job finishes, as these parallel
fetches compete with each other.  Which has been corrected.

* js/fetch-multi-lockfix:
  fetch: avoid locking issues between fetch.jobs/fetch.writeCommitGraph
  fetch: add the command-line option `--write-commit-graph`
2019-12-01 09:04:33 -08:00
Junio C Hamano
f089ddd56a Merge branch 'es/myfirstcontrib-updates'
Doc updates.

* es/myfirstcontrib-updates:
  myfirstcontrib: hint to find gitgitgadget allower
  myfirstcontrib: add dependency installation step
  myfirstcontrib: add 'psuh' to command-list.txt
2019-12-01 09:04:32 -08:00
Junio C Hamano
3c90710c0c Merge branch 'hw/config-doc-in-header'
Follow recent push to move API docs from Documentation/ to header
files and update config.h

* hw/config-doc-in-header:
  config: move documentation to config.h
2019-12-01 09:04:32 -08:00
Junio C Hamano
d4924ea7c3 Merge branch 'dl/doc-diff-no-index-implies-exit-code'
Doc update.

* dl/doc-diff-no-index-implies-exit-code:
  git-diff.txt: document return code of `--no-index`
2019-12-01 09:04:31 -08:00
Junio C Hamano
ecbddd16bb Merge branch 'pb/help-list-gitsubmodules-among-guides'
Help update.

* pb/help-list-gitsubmodules-among-guides:
  help: add gitsubmodules to the list of guides
2019-12-01 09:04:30 -08:00
Junio C Hamano
fac9ab1419 Merge branch 'ma/bisect-doc-sample-update'
"git merge --no-commit" needs "--no-ff" if you do not want to move
HEAD, which has been corrected in the manual page for "git bisect".

* ma/bisect-doc-sample-update:
  Documentation/git-bisect.txt: add --no-ff to merge command
2019-12-01 09:04:29 -08:00
Jeff King
3eae30e464 doc: replace public-inbox links with lore.kernel.org
Since we're now recommending lore.kernel.org (and because the
public-inbox.org domain might eventually go away), let's update our
internal references to use it, too. That future-proofs our references,
and sets the example we want people to follow.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-30 09:12:26 -08:00
Jeff King
46c67492aa doc: recommend lore.kernel.org over public-inbox.org
Since lore.kernel.org now has the same archive as public-inbox.org and
may have more longevity going forward[1], let's recommend people use it
for finding or referencing messages.

[1] https://public-inbox.org/git/20191120195556.GA25189@dcvr/
      or if you like:
    https://lore.kernel.org/git/20191120195556.GA25189@dcvr/

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-30 09:12:04 -08:00
Derrick Stolee
44a4693bfc progress: create GIT_PROGRESS_DELAY
The start_delayed_progress() method is a preferred way to show
optional progress to users as it ignores steps that take less
than two seconds. However, this makes testing unreliable as tests
expect to be very fast.

In addition, users may want to decrease or increase this time
interval depending on their preferences for terminal noise.

Create the GIT_PROGRESS_DELAY environment variable to control
the delay set during start_delayed_progress(). Set the value
in some tests to guarantee their output remains consistent.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-27 10:57:10 +09:00
Junio C Hamano
d82dfa7f5b rebase -i: finishing touches to --reset-author-date
Clarify the way the `--reset-author-date` option is described,
and mark its usage string translatable.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-25 15:09:29 +09:00
Philippe Blain
f0e58b3fe8 doc: mention that 'git submodule update' fetches missing commits
'git submodule update' will fetch new commits from the submodule remote
if the SHA-1 recorded in the superproject is not found. This was not
mentioned in the documentation.

Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-24 15:03:18 +09:00
Manish Goregaokar
8d483c8408 doc: document 'git submodule status --cached'
'git submodule status --cached' reports the SHAs recorded in the
index of the superproject, instead of the SHAs that are checked out
in the submodule.

Signed-off-by: Manish Goregaokar <manishsmail@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-24 13:52:29 +09:00
Johannes Schindelin
ac33519ddf mingw: restrict file handle inheritance only on Windows 7 and later
Turns out that it don't work so well on Vista, see
https://github.com/git-for-windows/git/issues/1742 for details.

According to https://devblogs.microsoft.com/oldnewthing/?p=8873, it
*should* work on Windows Vista and later.

But apparently there are issues on Windows Vista when pipes are
involved. Given that Windows Vista is past its end of life (official
support ended on April 11th, 2017), let's not spend *too* much time on
this issue and just disable the file handle inheritance restriction on
any Windows version earlier than Windows 7.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-23 11:17:01 +09:00
Johannes Schindelin
ea8b7be147 git svn: stop using rebase --preserve-merges
We deprecated `--preserve-merges` in favor of `--rebase-merges`; Let's
reflect that in `git svn`.

Note: Even when the user asks for `--preserve-merges`, we now silently
pass `--rebase-merges` to `git rebase` instead. Technically, this is a
change of behavior. But practically, `git svn` only ever asks for a
non-interactive rebase, and `--preserve-merges` and `--rebase-merges`
are on par with regard to that.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-23 09:49:23 +09:00
Derrick Stolee
99dfa6f970 sparse-checkout: use in-process update for disable subcommand
The 'git sparse-checkout disable' subcommand returns a user to a
full working directory. The old process for doing this required
updating the sparse-checkout file with the "/*" pattern and then
updating the working directory with core.sparseCheckout enabled.
Finally, the sparse-checkout file could be removed and the config
setting disabled.

However, it is valuable to keep a user's sparse-checkout file
intact so they can re-enable the sparse-checkout they previously
used with 'git sparse-checkout init'. This is now possible with
the in-process mechanism for updating the working directory.

Reported-by: Szeder Gábor <szeder.dev@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:45 +09:00
Derrick Stolee
879321eb0b sparse-checkout: add 'cone' mode
The sparse-checkout feature can have quadratic performance as
the number of patterns and number of entries in the index grow.
If there are 1,000 patterns and 1,000,000 entries, this time can
be very significant.

Create a new Boolean config option, core.sparseCheckoutCone, to
indicate that we expect the sparse-checkout file to contain a
more limited set of patterns. This is a separate config setting
from core.sparseCheckout to avoid breaking older clients by
introducing a tri-state option.

The config option does nothing right now, but will be expanded
upon in a later commit.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:44 +09:00
Derrick Stolee
72918c1ad9 sparse-checkout: create 'disable' subcommand
The instructions for disabling a sparse-checkout to a full
working directory are complicated and non-intuitive. Add a
subcommand, 'git sparse-checkout disable', to perform those
steps for the user.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:44 +09:00
Derrick Stolee
7bffca95ea sparse-checkout: add '--stdin' option to set subcommand
The 'git sparse-checkout set' subcommand takes a list of patterns
and places them in the sparse-checkout file. Then, it updates the
working directory to match those patterns. For a large list of
patterns, the command-line call can get very cumbersome.

Add a '--stdin' option to instead read patterns over standard in.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:44 +09:00
Derrick Stolee
f6039a9423 sparse-checkout: 'set' subcommand
The 'git sparse-checkout set' subcommand takes a list of patterns
as arguments and writes them to the sparse-checkout file. Then, it
updates the working directory using 'git read-tree -mu HEAD'.

The 'set' subcommand will replace the entire contents of the
sparse-checkout file. The write_patterns_and_update() method is
extracted from cmd_sparse_checkout() to make it easier to implement
'add' and/or 'remove' subcommands in the future.

If the core.sparseCheckout config setting is disabled, then enable
the config setting in the worktree config. If we set the config
this way and the sparse-checkout fails, then re-disable the config
setting.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:43 +09:00
Derrick Stolee
d89f09c828 clone: add --sparse mode
When someone wants to clone a large repository, but plans to work
using a sparse-checkout file, they either need to do a full
checkout first and then reduce the patterns they included, or
clone with --no-checkout, set up their patterns, and then run
a checkout manually. This requires knowing a lot about the repo
shape and how sparse-checkout works.

Add a new '--sparse' option to 'git clone' that initializes the
sparse-checkout file to include the following patterns:

	/*
	!/*/

These patterns include every file in the root directory, but
no directories. This allows a repo to include files like a
README or a bootstrapping script to grow enlistments from that
point.

During the 'git sparse-checkout init' call, we must first look
to see if HEAD is valid, since 'git clone' does not have a valid
HEAD at the point where it initializes the sparse-checkout. The
following checkout within the clone command will create the HEAD
ref and update the working directory correctly.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:43 +09:00
Derrick Stolee
bab3c35908 sparse-checkout: create 'init' subcommand
Getting started with a sparse-checkout file can be daunting. Help
users start their sparse enlistment using 'git sparse-checkout init'.
This will set 'core.sparseCheckout=true' in their config, write
an initial set of patterns to the sparse-checkout file, and update
their working directory.

Make sure to use the `extensions.worktreeConfig` setting and write
the sparse checkout config to the worktree-specific config file.
This avoids confusing interactions with other worktrees.

The use of running another process for 'git read-tree' is sub-
optimal. This will be removed in a later change.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:43 +09:00
Derrick Stolee
94c0956b60 sparse-checkout: create builtin with 'list' subcommand
The sparse-checkout feature is mostly hidden to users, as its
only documentation is supplementary information in the docs for
'git read-tree'. In addition, users need to know how to edit the
.git/info/sparse-checkout file with the right patterns, then run
the appropriate 'git read-tree -mu HEAD' command. Keeping the
working directory in sync with the sparse-checkout file requires
care.

Begin an effort to make the sparse-checkout feature a porcelain
feature by creating a new 'git sparse-checkout' builtin. This
builtin will be the preferred mechanism for manipulating the
sparse-checkout file and syncing the working directory.

The documentation provided is adapted from the "git read-tree"
documentation with a few edits for clarity in the new context.
Extra sections are added to hint toward a future change to
a more restricted pattern set.

Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-22 16:11:43 +09:00
Denton Liu
bd36191886 range-diff: pass through --notes to git log
When a commit being range-diff'd has a note attached to it, the note
will be compared as well. However, if a user has multiple notes refs or
if they want to suppress notes from being printed, there is currently no
way to do this.

Pass through `--[no-]notes[=<ref>]` to the `git log` call so that this
option is customizable.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-21 09:29:52 +09:00
Denton Liu
26d94853f0 pretty-options.txt: --notes accepts a ref instead of treeish
Although `--notes=` accepts and handles a tree-ish just fine, it isn't a
common use-case for users to pass in bare trees. By having "treeish", it
makes it harder to click in users' minds that the argument here is the
same type as the `notes.displayRef` configuration variable, for example.

Change `treeish` to `ref` so that it will be easier for users to make
this connection.

Note that we don't completely lose the notion that `--notes=` can accept
a tree-ish. In git-notes.txt, we have

	It is also permitted for a notes ref to point directly to a tree
	object, in which case the history of the notes can be read with
	`git log -p -g <refname>`.

which means that a hardcore user who wants to take advantage of this
obscure use-case will be able to infer the connection and not be
completely left in the dark.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-21 09:29:52 +09:00
Denton Liu
3798149a74 SubmittingPatches: use --pretty=reference
Since Git was taught the `--pretty=reference` option, it is no longer
necessary to manually specify the format string to get the commit
reference. Teach users to use the new option while keeping the old
invocation around in case they have an older version of Git.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-20 13:33:37 +09:00
Denton Liu
1f0fc1db85 pretty: implement 'reference' format
The standard format for referencing other commits within some projects
(such as git.git) is the reference format. This is described in
Documentation/SubmittingPatches as

	If you want to reference a previous commit in the history of a stable
	branch, use the format "abbreviated hash (subject, date)", like this:

	....
		Commit f86a374 (pack-bitmap.c: fix a memleak, 2015-03-30)
		noticed that ...
	....

Since this format is so commonly used, standardize it as a pretty
format.

The tests that are implemented essentially show that the format-string
does not change in response to various log options. This is useful
because, for future developers, it shows that we've considered the
limitations of the "canned format-string" approach and we are fine with
them.

Based-on-a-patch-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-20 13:33:37 +09:00
René Scharfe
0df621172d pretty: provide short date format
Add the placeholders %as and %cs to format author date and committer
date, respectively, without the time part, like --date=short does, i.e.
like YYYY-MM-DD.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-20 13:33:36 +09:00
Denton Liu
fb2ffa77a6 SubmittingPatches: remove dq from commit reference
Quoting SZEDER Gábor[1],

	SubmittingPatches is simply wrong: our de-facto standard format for
	referencing other commits does not enclose the subject in a pair of
	double-quotes:

	  $ git log v2.24.0 |grep -E '[0-9a-f]{7} \("' |wc -l
	  785
	  $ git log v2.24.0 |grep -E '[0-9a-f]{7} \([^"]' |wc -l
	  2276

	Those double-quotes don't add any value to the references, but they
	result in weird looking references for 1083 of our commits whose
	subject lines happen to end with double-quotes, e.g.:

	  f23a465132 ("hashmap_get{,_from_hash} return "struct hashmap_entry *"", 2019-10-06)

	and without those unnecessary pair of double-quotes we would have
	~3000 more commits whose summary would fit on a single line.

Remove references to the enclosing double-quotes from SubmittingPatches
since our de-facto standard for referencing commits does not actually
use them.

[1]: cf. <20191114011048.GS4348@szeder.dev>

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-20 13:33:36 +09:00