Граф коммитов

13237 Коммитов

Автор SHA1 Сообщение Дата
Junio C Hamano f0c592dcfd Merge branch 'rj/make-clean'
Build optimization.

* rj/make-clean:
  Makefile: don't use a versioned temp distribution directory
  Makefile: don't try to clean old debian build product
  gitweb/Makefile: conditionally include ../GIT-VERSION-FILE
  Documentation/Makefile: conditionally include ../GIT-VERSION-FILE
  Documentation/Makefile: conditionally include doc.dep
2020-12-17 15:06:40 -08:00
Junio C Hamano 1c52ecf4ba Git 2.30-rc0
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-14 10:30:05 -08:00
Junio C Hamano aa35dadb26 Merge branch 'ae/doc-reproducible-html'
Newer versions of xsltproc can assign IDs in HTML documents it
generates in a consistent manner.  Use the feature to help format
HTML version of the user manual reproducibly.

* ae/doc-reproducible-html:
  doc: make HTML manual reproducible
2020-12-14 10:21:37 -08:00
Junio C Hamano c9f1f4412c Merge branch 'so/glossary-branch-is-not-necessarily-active'
The glossary described a branch as an "active" line of development,
which is misleading---a stale and non-moving branch is still a
branch.

* so/glossary-branch-is-not-necessarily-active:
  glossary: improve "branch" definition
2020-12-14 10:21:37 -08:00
Junio C Hamano 78abcff222 Merge branch 'dd/help-autocorrect-never'
"git $cmd $args", when $cmd is not a recognised subcommand, by
default tries to see if $cmd is a typo of an existing subcommand
and optionally executes the corrected command if there is only one
possibility, depending on the setting of help.autocorrect; the
users can now disable the whole thing, including the cycles spent
to find a likely typo, by setting the configuration variable to
'never'.

* dd/help-autocorrect-never:
  help.c: help.autocorrect=never means "do not compute suggestions"
2020-12-14 10:21:36 -08:00
Jeff Hostetler 5885367e8f index-format.txt: document v2 format of file system monitor extension
Update the documentation of the file system monitor extension to
describe version 2.

The format was extended to support opaque tokens in:
56c6910028 fsmonitor: change last update timestamp on the index_state to opaque token

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-14 08:42:23 -08:00
Johannes Berg 633eebe142 docs: multi-pack-index: remove note about future 'verify' work
This was implemented in the 'git multi-pack-index' command and
merged in 468b3221 (Merge branch 'ds/multi-pack-verify',
2018-10-10).

And there's no 'git midx' command.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-14 08:39:08 -08:00
Johannes Schindelin 1296cbe4b4 init: document `init.defaultBranch` better
Our documentation does not mention any future plan to change 'master' to
other value. It is a good idea to document this, though.

Initial-patch-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-13 15:53:50 -08:00
brian m. carlson fac60b8925 rev-parse: add option for absolute or relative path formatting
git rev-parse has several options which print various paths.  Some of
these paths are printed relative to the current working directory, and
some are absolute.

Normally, this is not a problem, but there are times when one wants
paths entirely in one format or another.  This can be done trivially if
the paths are canonical, but canonicalizing paths is not possible on
some shell scripting environments which lack realpath(1) and also in Go,
which lacks functions that properly canonicalize paths on Windows.

To help out the scripter, let's provide an option which turns most of
the paths printed by git rev-parse to be either relative to the current
working directory or absolute and canonical.  Document which options are
affected and which are not so that users are not confused.

This approach is cleaner and tidier than providing duplicates of
existing options which are either relative or absolute.

Note that if the user needs both forms, it is possible to pass an
additional option in the middle of the command line which changes the
behavior of subsequent operations.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-12 23:35:51 -08:00
Ævar Arnfjörð Bjarmason 058761f1c1 pretty format %(trailers): add a "key_value_separator"
Add a "key_value_separator" option to the "%(trailers)" pretty format,
to go along with the existing "separator" argument. In combination
these two options make it trivial to produce machine-readable (e.g. \0
and \0\0-delimited) format output.

As elaborated on in a previous commit which added "keyonly" it was
needlessly tedious to extract structured data from "%(trailers)"
before the addition of this "key_value_separator" option. As seen by
the test being added here extracting this data now becomes trivial.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-09 14:16:42 -08:00
Ævar Arnfjörð Bjarmason 9d87d5ae02 pretty format %(trailers): add a "keyonly"
Add support for a "keyonly". This allows for easier parsing out of the
key and value. Before if you didn't want to make assumptions about how
the key was formatted. You'd need to parse it out as e.g.:

    --pretty=format:'%H%x00%(trailers:separator=%x00%x00)' \
                       '%x00%(trailers:separator=%x00%x00,valueonly)'

And then proceed to deduce keys by looking at those two and
subtracting the value plus the hardcoded ": " separator from the
non-valueonly %(trailers) line. Now it's possible to simply do:

    --pretty=format:'%H%x00%(trailers:separator=%x00%x00,keyonly)' \
                    '%x00%(trailers:separator=%x00%x00,valueonly)'

Which at least reduces it to a state machine where you get N keys and
correlate them with N values. Even better would be to have a way to
change the ": " delimiter to something easily machine-readable (a key
might contain ": " too). A follow-up change will add support for that.

I don't really have a use-case for just "keyonly" myself. I suppose it
would be useful in some cases as "key=*" matches case-insensitively,
so a plain "keyonly" will give you the variants of the keys you
matched. I'm mainly adding it to fix the inconsistency with
"valueonly".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-09 14:16:42 -08:00
Ævar Arnfjörð Bjarmason 2762e17117 pretty format %(trailers) doc: avoid repetition
Change the documentation for the various %(trailers) options so it
isn't repeating part of the documentation for "only" about how boolean
values are handled. Instead, let's split the description of that into
general documentation at the top.

It then suffices to refer to it by listing the options as
"opt[=<BOOL>]". I'm also changing it to upper-case "[=<BOOL>]" from
"[=val]" for consistency with "<SEP>"

It took me a couple of readings to realize that these options were
referring back to the "only" option's treatment of boolean
values.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-09 14:16:42 -08:00
Ramsay Jones 7a9272a836 Documentation/Makefile: conditionally include ../GIT-VERSION-FILE
The 'clean' target is still noticeably slow on cygwin, despite the
substantial improvement made by the previous patch. For example, the
second invocation of 'make clean' below:

  $ make clean >/dev/null 2>&1
  $ make clean
  ...
  make[1]: Entering directory '/home/ramsay/git/Documentation'
  make[2]: Entering directory '/home/ramsay/git'
  make[2]: 'GIT-VERSION-FILE' is up to date.
  make[2]: Leaving directory '/home/ramsay/git'
  ...
  $

has been timed at 12.364s on my laptop (an old core i5-4200M @ 2.50GHz,
8GB RAM, 1TB HDD).

Notice that the 'clean' target is making a nested call to the parent
Makefile to ensure that the GIT-VERSION-FILE is up-to-date (prior to
the previous patch, there would have been _two_ such invocations).
This is to ensure that the $(GIT_VERSION) make variable is set, once
that file had been included.  However, the 'clean' target does not use
the $(GIT_VERSION) variable, directly or indirectly, so it does not
have any affect on what the target removes. Therefore, the time spent
on ensuring an up to date GIT-VERSION-FILE is wasted effort.

In order to eliminate such wasted effort, use the value of the internal
$(MAKECMDGOALS) variable to only '-include ../GIT-VERSION-FILE' when the
target is not 'clean'. (This drops the time down to 10.361s, on my laptop,
giving an improvement of 16.20%).

Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-08 16:56:56 -08:00
Ramsay Jones 54df87555b Documentation/Makefile: conditionally include doc.dep
The 'clean' target is noticeably slow on cygwin, even for a 'do-nothing'
invocation of 'make clean'. For example, the second 'make clean' below:

  $ make clean >/dev/null 2>&1
  $ make clean
  GIT_VERSION = 2.29.0
  ...
  make[1]: Entering directory '/home/ramsay/git/Documentation'
      GEN mergetools-list.made
      GEN cmd-list.made
      GEN doc.dep
  ...
  $

has been timed at 23.339s, using git v2.29.0, on my laptop (an old core
i5-4200M @ 2.50GHz, 8GB RAM, 1TB HDD).

Notice that, since the 'doc.dep' file does not exist, make takes the
time (about 8s) to generate several files in order to create the doc.dep
include file. (If an 'include' file is missing, but a target for the
said file is present in the Makefile, make will execute that target
and, if that file now exists, throw away all its internal data and
re-read and re-parse the Makefile). Having spent the time to include
the 'doc.dep' file, the 'clean' target immediately deletes those files.
The document dependencies specified in the 'doc.dep' include file,
expressed as make targets and prerequisites, do not affect what the
'clean' target removes. Therefore, the time spent in generating the
dependencies is completely wasted effort.

In order to eliminate such wasted effort, use the value of the internal
$(MAKECMDGOALS) variable to only '-include doc.dep' when the target is
not 'clean'. (This drops the time down to 12.364s, on my laptop, giving
an improvement of 47.02%).

Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-08 16:56:55 -08:00
Junio C Hamano 3cf59784d4 Eleventh batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-08 15:11:22 -08:00
Junio C Hamano 90051e5b5e Merge branch 'sn/config-doc-typofix'
Fix for an old typo.

* sn/config-doc-typofix:
  config.txt: fix a typo (backslash != backquote)
2020-12-08 15:11:22 -08:00
Junio C Hamano 5dfb976460 Merge branch 'ma/grep-init-default'
Code clean-up.

* ma/grep-init-default:
  MyFirstObjectWalk: drop `init_walken_defaults()`
  grep: copy struct in one fell swoop
  grep: use designated initializers for `grep_defaults`
  grep: don't set up a "default" repo for grep
2020-12-08 15:11:20 -08:00
Junio C Hamano 01b8886a62 Merge branch 'js/trace2-session-id'
The transport layer was taught to optionally exchange the session
ID assigned by the trace2 subsystem during fetch/push transactions.

* js/trace2-session-id:
  receive-pack: log received client session ID
  send-pack: advertise session ID in capabilities
  upload-pack, serve: log received client session ID
  fetch-pack: advertise session ID in capabilities
  transport: log received server session ID
  serve: advertise session ID in v2 capabilities
  receive-pack: advertise session ID in v0 capabilities
  upload-pack: advertise session ID in v0 capabilities
  trace2: add a public function for getting the SID
  docs: new transfer.advertiseSID option
  docs: new capability to advertise session IDs
2020-12-08 15:11:20 -08:00
Junio C Hamano a10e7842ab Merge branch 'ds/config-literal-value'
Various subcommands of "git config" that takes value_regex
learn the "--literal-value" option to take the value_regex option
as a literal string.

* ds/config-literal-value:
  config doc: value-pattern is not necessarily a regexp
  config: implement --fixed-value with --get*
  config: plumb --fixed-value into config API
  config: add --fixed-value option, un-implemented
  t1300: add test for --replace-all with value-pattern
  t1300: test "set all" mode with value-pattern
  config: replace 'value_regex' with 'value_pattern'
  config: convert multi_replace to flags
2020-12-08 15:11:19 -08:00
Junio C Hamano 1bc550effe Merge branch 'ps/update-ref-multi-transaction'
"git update-ref --stdin" learns to take multiple transactions in a
single session.

* ps/update-ref-multi-transaction:
  update-ref: disallow "start" for ongoing transactions
  p1400: use `git-update-ref --stdin` to test multiple transactions
  update-ref: allow creation of multiple transactions
  t1400: avoid touching refs on filesystem
2020-12-08 15:11:17 -08:00
Junio C Hamano 2aeafbc896 Merge branch 'jt/trace-error-on-warning'
Like die() and error(), a call to warning() will also trigger a
trace2 event.

* jt/trace-error-on-warning:
  usage: add trace2 entry upon warning()
2020-12-08 15:11:17 -08:00
Sangeeta Jain 8ef9312464 diff: do not show submodule with untracked files as "-dirty"
Git diff reports a submodule directory as -dirty even when there are
only untracked files in the submodule directory. This is inconsistent
with what `git describe --dirty` says when run in the submodule
directory in that state.

Make `--ignore-submodules=untracked` the default for `git diff` when
there is no configuration variable or command line option, so that the
command would not give '-dirty' suffix to a submodule whose working
tree has untracked files, to make it consistent with `git
describe --dirty` that is run in the submodule working tree.

And also make `--ignore-submodules=none` the default for `git status`
so that the user doesn't end up deleting a submodule that has
uncommitted (untracked) files.

Signed-off-by: Sangeeta Jain <sangunb09@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-08 14:27:35 -08:00
Junio C Hamano 3a0b884cab Tenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-03 00:18:07 -08:00
Junio C Hamano e89ecfbb13 Merge branch 'ab/retire-parse-remote'
"git-parse-remote" shell script library outlived its usefulness.

* ab/retire-parse-remote:
  submodule: fix fetch_in_submodule logic
  parse-remote: remove this now-unused library
  submodule: remove sh function in favor of helper
  submodule: use "fetch" logic instead of custom remote discovery
2020-12-03 00:18:06 -08:00
Arnout Engelen 3569e11d69 doc: make HTML manual reproducible
Versions of docbook-xsl newer than 1.79.1 allows xsltproc to assign
IDs to nodes in the generated HTML consistently, to make the output
resulting from the same source stable and reproducible.

Pass the generate.consistent.ids parameter from the command line to
ask for this feature.  Older versions of the tool simply ignores the
parameter and produces their output the same way as before this
change, so there is no need to check for toolchain version.

Signed-off-by: Arnout Engelen <arnout@bzzt.net>
Helped-by: brian m. carlson <sandals@crustytoothpaste.net>
Helped-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-02 18:33:34 -08:00
Sergey Organov eef1ceabd8 glossary: improve "branch" definition
The old phrasing is at least questionable, if not wrong, as there are
a lot of branches out there that didn't see active development for
years, yet they are still branches, ready to become active again any
time.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-02 14:53:42 -08:00
Štěpán Němec e63d774242 config.txt: fix a typo (backslash != backquote)
Signed-off-by: Štěpán Němec <stepnem@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-12-01 13:31:55 -08:00
Junio C Hamano 72ffeb997e Ninth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-30 14:49:45 -08:00
Junio C Hamano 3d8f81f21b Merge branch 'sa/credential-store-timeout'
Multiple "credential-store" backends can race to lock the same
file, causing everybody else but one to fail---reattempt locking
with some timeout to reduce the rate of the failure.

* sa/credential-store-timeout:
  crendential-store: use timeout when locking file
2020-11-30 14:49:45 -08:00
Junio C Hamano b94b1f9af8 Merge branch 'jc/do-not-just-explain-but-update-your-patch'
Expectation for the original contributor after responding to a
review comment to use the explanation in a patch update has been
described.

* jc/do-not-just-explain-but-update-your-patch:
  MyFirstContribition: answering questions is not the end of the story
2020-11-30 14:49:43 -08:00
Junio C Hamano 1c04cdd424 Merge branch 'ab/gc-keep-base-option'
Fix an option name in "gc" documentation.

* ab/gc-keep-base-option:
  gc: rename keep_base_pack variable for --keep-largest-pack
  gc docs: change --keep-base-pack to --keep-largest-pack
2020-11-30 14:49:43 -08:00
Martin Ågren 3bf97e1270 MyFirstObjectWalk: drop `init_walken_defaults()`
In a recent commit, we stopped calling `init_grep_defaults()` from this
function. Thus, by the end of the tutorial, we still haven't added any
contents to this function. Let's remove it for simplicity.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-30 13:55:54 -08:00
Junio C Hamano e67fbf927d Eighth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-25 15:24:54 -08:00
Junio C Hamano c902618795 config doc: value-pattern is not necessarily a regexp
The introductory part of the "git config --help" mentions the
optional value-pattern argument, but give no hint that it can be
something other than a regular expression (worse, it just says
"POSIX regexp", which usually means BRE but the regexp the command
takes is ERE).  Also, it needs to be documented that the '!' prefix
to negate the match, which is only mentioned in this part of the
document, works only with regexp and not with the --fixed-value.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-25 15:01:31 -08:00
Derrick Stolee fda43942d7 config: add --fixed-value option, un-implemented
The 'git config' builtin takes a 'value-pattern' parameter for several
actions. This can cause confusion when expecting exact value matches
instead of regex matches, especially when the input string contains
metacharacters. While callers can escape the patterns themselves, it
would be more friendly to allow an argument to disable the pattern
matching in favor of an exact string match.

Add a new '--fixed-value' option that does not currently change the
behavior. The implementation will be filled in by later changes for
each appropriate action. For now, check and test that --fixed-value
will abort the command when included with an incompatible action or
without a 'value-pattern' argument.

The name '--fixed-value' was chosen over something simpler like
'--fixed' because some commands allow regular expressions on the
key in addition to the value.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-25 14:43:48 -08:00
Derrick Stolee 247e2f822e config: replace 'value_regex' with 'value_pattern'
The 'value_regex' argument in the 'git config' builtin is poorly named,
especially related to an upcoming change that allows exact string
matches instead of ERE pattern matches.

Perform a mostly mechanical change of every instance of 'value_regex' to
'value_pattern' in the codebase. This is only critical for documentation
and error messages, but it is best to be consistent inside the codebase,
too.

For documentation, use 'value-pattern' which is better punctuation. This
affects Documentation/git-config.txt and the usage in builtin/config.c,
which was already mixed between 'value_regex' and 'value-regex'.

I gave some thought to leaving the value_regex variables inside config.c
that are regex_t pointers. However, it is probably best to keep the name
consistent with the rest of the variables.

This does not update the translations inside the po/ directory, as that
creates conflicts with ongoing work. The input strings should
automatically update through automation, and a few of the output strings
currently use "[value_regex]" directly.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-25 14:43:48 -08:00
Drew DeVault 644bb953ce help.c: help.autocorrect=never means "do not compute suggestions"
While help.autocorrect can be set to 0 to decline auto-execution of
possibly mistyped commands, it still spends cycles to compute the
suggestions, and it wastes screen real estate.

Update help.autocorrect to accept the string "never" to just exit
with error upon mistyped commands to help users who prefer to never
see suggested corrections at all.

While at it, introduce "immediate" as a more readable way to
immediately execute the auto-corrected command, which can be done
with negative value.

Signed-off-by: Drew DeVault <sir@cmpwn.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-25 13:02:15 -08:00
Simão Afonso df7f915fb6 crendential-store: use timeout when locking file
When holding the lock for rewriting the credential file, use a timeout
to avoid race conditions when the credentials file needs to be updated
in parallel.

An example would be doing `fetch --all` on a repository with several
remotes that need credentials, using parallel fetching.

The timeout can be configured using "credentialStore.lockTimeoutMS",
defaulting to 1 second.

Signed-off-by: Simão Afonso <simao.afonso@powertools-tech.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-25 12:30:18 -08:00
Jonathan Tan 0ee10fd129 usage: add trace2 entry upon warning()
Emit a trace2 error event whenever warning() is called, just like when
die(), error(), or usage() is called.

This helps debugging issues that would trigger warnings but not errors.
In particular, this might have helped debugging an issue I encountered
with commit graphs at $DAYJOB [1].

There is a tradeoff between including potentially relevant messages and
cluttering up the trace output produced. I think that warning() messages
should be included in traces, because by its nature, Git is used over
multiple invocations of the Git tool, and a failure (currently traced)
in a Git invocation might be caused by an unexpected interaction in a
previous Git invocation that only has a warning (currently untraced) as
a symptom - as is the case in [1].

[1] https://lore.kernel.org/git/20200629220744.1054093-1-jonathantanmy@google.com/

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-24 17:39:38 -08:00
Junio C Hamano a6d8d11036 MyFirstContribition: answering questions is not the end of the story
A review exchange may begin with a reviewer asking "what did you
mean by this phrase in your log message (or here in the doc)?", the
author answering what was meant, and then the reviewer saying "ah,
that is what you meant---then the flow of the logic makes sense".

But that is not the happy end of the story.  New contributors often
forget that the material that has been reviewed in the above exchange
is still unclear in the same way to the next person who reads it,
until it gets updated.

While we are in the vicinity, rephrase the verb "request" used to
refer to comments by reviewers to "suggest"---this matches the
contrast between "original" and "suggested" that appears later in
the same paragraph, and more importantly makes it clearer that it is
not like authors are to please reviewers' wishes but rather
reviewers are merely helping authors to polish their commits.

Reviewed-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-24 14:11:17 -08:00
Derrick Stolee 16c5690929 maintenance: include 'cron' details in docs
Advanced and expert users may want to know how 'git maintenance start'
schedules background maintenance in order to customize their own
schedules beyond what the maintenance.* config values allow. Start a new
set of sections in git-maintenance.txt that describe how 'cron' is used
to run these tasks.

This is particularly valuable for users who want to inspect what Git is
doing or for users who want to customize the schedule further. Having a
baseline can provide a way forward for users who have never worked with
cron schedules.

Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-24 13:02:29 -08:00
Junio C Hamano b291b0a628 Seventh batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-21 15:14:39 -08:00
Junio C Hamano 0dd171f0bc Merge branch 'jk/rev-parse-end-of-options'
"git rev-parse" learned the "--end-of-options" to help scripts to
safely take a parameter that is supposed to be a revision, e.g.
"git rev-parse --verify -q --end-of-options $rev".

* jk/rev-parse-end-of-options:
  rev-parse: handle --end-of-options
  rev-parse: put all options under the "-" check
  rev-parse: don't accept options after dashdash
2020-11-21 15:14:38 -08:00
Junio C Hamano 473c6224c6 Merge branch 'jc/format-patch-name-max'
The maximum length of output filenames "git format-patch" creates
has become configurable (used to be capped at 64).

* jc/format-patch-name-max:
  format-patch: make output filename configurable
2020-11-21 15:14:38 -08:00
Martin Ågren 96313423a7 grep: use designated initializers for `grep_defaults`
In 15fabd1bbd ("builtin/grep.c: make configuration callback more
reusable", 2012-10-09), we learned to fill a `static struct grep_opt
grep_defaults` which we can use as a blueprint for other such structs.

At the time, we didn't consider designated initializers to be widely
useable, but these days, we do. (See, e.g., cbc0f81d96 ("strbuf: use
designated initializers in STRBUF_INIT", 2017-07-10).)

Use designated initializers to let the compiler set up the struct and so
that we don't need to remember to call `init_grep_defaults()`.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-21 14:50:33 -08:00
Martin Ågren 1d3878799f grep: don't set up a "default" repo for grep
`init_grep_defaults()` fills a `static struct grep_opt grep_defaults`.
This struct is then used by `grep_init()` as a blueprint for other such
structs. Notably, `grep_init()` takes a `struct repo *` and assigns it
into the target struct.

As a result, it is unnecessary for us to take a `struct repo *` in
`init_grep_defaults()` as well. We assign it into the default struct and
never look at it again. And in light of how we return early if we have
already set up the default struct, it's not just unnecessary, but is
also a bit confusing: If we are called twice and with different repos,
is it a bug or a feature that we ignore the second repo?

Drop the repo parameter for `init_grep_defaults()`.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-21 14:50:29 -08:00
Ævar Arnfjörð Bjarmason db5368b846 gc docs: change --keep-base-pack to --keep-largest-pack
The --keep-base-pack option never existed in git.git. It was the name
for the --keep-largest-pack option in earlier revisions of that series
before it landed as ae4e89e549 ("gc: add --keep-largest-pack option",
2018-04-15).

The later patches in that series[1][2] weren't changed to also refer
to --keep-largest-pack, so we've had this reference to a nonexisting
option ever since the feature initially landed.

1. 55dfe13df9 ("gc: add gc.bigPackThreshold config", 2018-04-15)

2. 9806f5a7bf ("gc --auto: exclude base pack if not enough mem to
   "repack -ad"", 2018-04-15)

Reported-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-21 11:39:55 -08:00
Junio C Hamano faefdd61ec Sixth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-18 13:33:25 -08:00
Junio C Hamano 3f6dc9c366 Merge branch 'pb/blame-funcname-range-userdiff'
"git blame -L :funcname -- path" did not work well for a path for
which a userdiff driver is defined.

* pb/blame-funcname-range-userdiff:
  blame: simplify 'setup_blame_bloom_data' interface
  blame: simplify 'setup_scoreboard' interface
  blame: enable funcname blaming with userdiff driver
  line-log: mention both modes in 'blame' and 'log' short help
  doc: add more pointers to gitattributes(5) for userdiff
  blame-options.txt: also mention 'funcname' in '-L' description
  doc: line-range: improve formatting
  doc: log, gitk: move '-L' description to 'line-range-options.txt'
2020-11-18 13:32:53 -08:00
Junio C Hamano 7660da1618 Merge branch 'ds/maintenance-part-3'
Parts of "git maintenance" to ease writing crontab entries (and
other scheduling system configuration) for it.

* ds/maintenance-part-3:
  maintenance: add troubleshooting guide to docs
  maintenance: use 'incremental' strategy by default
  maintenance: create maintenance.strategy config
  maintenance: add start/stop subcommands
  maintenance: add [un]register subcommands
  for-each-repo: run subcommands on configured repos
  maintenance: add --schedule option and config
  maintenance: optionally skip --auto process
2020-11-18 13:32:53 -08:00
Patrick Steinhardt 262a4d28fe update-ref: allow creation of multiple transactions
While git-update-ref has recently grown commands which allow interactive
control of transactions in e48cf33b61 (update-ref: implement interactive
transaction handling, 2020-04-02), it is not yet possible to create
multiple transactions in a single session. To do so, one currently still
needs to invoke the executable multiple times.

This commit addresses this shortcoming by allowing the "start" command
to create a new transaction if the current transaction has already been
either committed or aborted.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-16 13:44:01 -08:00
Ævar Arnfjörð Bjarmason a89a2fbfcc parse-remote: remove this now-unused library
The previous two commits removed the last use of a function in this
library, but most of it had been dead code for a while[1][2]. Only the
"get_default_remote" function was still being used.

Even though we had a manual page for this library it was never
intended (or I expect, actually) used outside of git.git. Let's just
remove it, if anyone still cares about a function here they can pull
them into their own project[3].

1. Last use of error_on_missing_default_upstream():
   d03ebd411c ("rebase: remove the rebase.useBuiltin setting",
   2019-03-18)

2. Last use of get_remote_merge_branch(): 49eb8d39c7 ("Remove
   contrib/examples/*", 2018-03-25)

3. https://lore.kernel.org/git/87a6vmhdka.fsf@evledraar.gmail.com/

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-16 13:19:30 -08:00
Josh Steadmon 81bd549010 docs: new transfer.advertiseSID option
Document a new config option that allows users to determine whether or
not to advertise their session IDs to remote Git clients and servers.

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-11 18:26:52 -08:00
Josh Steadmon f5cdbe485f docs: new capability to advertise session IDs
In future patches, we will add the ability for Git servers and clients
to advertise unique session IDs via protocol capabilities. This
allows for easier debugging when both client and server logs are
available.

Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-11 18:26:52 -08:00
Junio C Hamano e31aba42fb Fifth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-11 13:18:40 -08:00
Junio C Hamano 8d9e92b06b Merge branch 'mc/typofix'
Docfix.

* mc/typofix:
  doc: fixing two trivial typos in Documentation/
2020-11-11 13:18:38 -08:00
Junio C Hamano ee13bebbd5 Merge branch 'jc/abbrev-doc'
The documentation on the "--abbrev=<n>" option did not say the
output may be longer than "<n>" hexdigits, which has been
clarified.

* jc/abbrev-doc:
  doc: clarify that --abbrev=<n> is about the minimum length
2020-11-11 13:18:38 -08:00
Junio C Hamano c5a802f0ce Merge branch 'so/format-patch-doc-on-default-diff-format'
Docfix.

* so/format-patch-doc-on-default-diff-format:
  doc/diff-options: fix out of place mentions of '--patch/-p'
2020-11-11 13:18:37 -08:00
Jeff King 3a1f91cfd9 rev-parse: handle --end-of-options
We taught rev-list a new way to separate options from revisions in
19e8789b23 (revision: allow --end-of-options to end option parsing,
2019-08-06), but rev-parse uses its own parser. It should know about
--end-of-options not only for consistency, but because it may be
presented with similarly ambiguous cases. E.g., if a caller does:

  git rev-parse "$rev" -- "$path"

to parse an untrusted input, then it will get confused if $rev contains
an option-like string like "--local-env-vars". Or even "--not-real",
which we'd keep as an option to pass along to rev-list.

Or even more importantly:

  git rev-parse --verify "$rev"

can be confused by options, even though its purpose is safely parsing
untrusted input. On the plus side, it will always fail the --verify
part, as it will not have parsed a revision, so the caller will
generally "fail closed" rather than continue to use the untrusted
string. But it will still trigger whatever option was in "$rev"; this
should be mostly harmless, since rev-parse options are all read-only,
but I didn't carefully audit all paths.

This patch lets callers write:

  git rev-parse --end-of-options "$rev" -- "$path"

and:

  git rev-parse --verify --end-of-options "$rev"

which will both treat "$rev" always as a revision parameter. The latter
is a bit clunky. It would be nicer if we had defined "--verify" to
require that its next argument be the revision. But we have not
historically done so, and:

  git rev-parse --verify -q "$rev"

does currently work. I added a test here to confirm that we didn't break
that.

A few implementation notes:

 - We don't document --end-of-options explicitly in commands, but rather
   in gitcli(7). So I didn't give it its own section in git-rev-parse(1).
   But I did call it out specifically in the --verify section, and
   include it in the examples, which should show best practices.

 - We don't have to re-indent the main option-parsing block, because we
   can combine our "did we see end of options" check with "does it start
   with a dash". The exception is the pre-setup options, which need
   their own block.

 - We do however have to pull the "--" parsing out of the "does it start
   with dash" block, because we want to parse it even if we've seen
   --end-of-options.

 - We'll leave "--end-of-options" in the output. This is probably not
   technically necessary, as a careful caller will do:

     git rev-parse --end-of-options $revs -- $paths

   and anything in $revs will be resolved to an object id. However, it
   does help a slightly less careful caller like:

     git rev-parse --end-of-options $revs_or_paths

   where a path "--foo" will remain in the output as long as it also
   exists on disk. In that case, it's helpful to retain --end-of-options
   to get passed along to rev-list, s it would otherwise see just
   "--foo".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-10 13:46:27 -08:00
Junio C Hamano 3baf58bfb4 format-patch: make output filename configurable
For the past 15 years, we've used the hardcoded 64 as the length
limit of the filename of the output from the "git format-patch"
command.  Since the value is shorter than the 80-column terminal, it
could grow without line wrapping a bit.  At the same time, since the
value is longer than half of the 80-column terminal, we could fit
two or more of them in "ls" output on such a terminal if we allowed
to lower it.

Introduce a new command line option --filename-max-length=<n> and a
new configuration variable format.filenameMaxLength to override the
hardcoded default.

While we are at it, remove a check that the name of output directory
does not exceed PATH_MAX---this check is pointless in that by the
time control reaches the function, the caller would already have
done an equivalent of "mkdir -p", so if the system does not like an
overly long directory name, the control wouldn't have reached here,
and otherwise, we know that the system allowed the output directory
to exist.  In the worst case, we will get an error when we try to
open the output file and handle the error correctly anyway.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-09 17:44:41 -08:00
Junio C Hamano e4d83eee92 Fourth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-09 14:06:29 -08:00
Junio C Hamano ecf95d938b Merge branch 'ab/git-remote-exit-code'
Exit codes from "git remote add" etc. were not usable by scripted
callers.

* ab/git-remote-exit-code:
  remote: add meaningful exit code on missing/existing
2020-11-09 14:06:26 -08:00
Junio C Hamano 0a1cceb9bd Merge branch 'en/dir-rename-tests'
More preliminary tests have been added to document desired outcome
of various "directory rename" situations.

* en/dir-rename-tests:
  t6423: more involved rules for renaming directories into each other
  t6423: update directory rename detection tests with new rule
  t6423: more involved directory rename test
  directory-rename-detection.txt: update references to regression tests
2020-11-09 14:06:25 -08:00
Marlon Rac Cambasis b7e20b4373 doc: fixing two trivial typos in Documentation/
Fix misspelled "specified" and "occurred" in documentation and
comments.

Signed-off-by: Marlon Rac Cambasis <marlonrc08@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-05 12:52:50 -08:00
Junio C Hamano cda34e0d0c doc: clarify that --abbrev=<n> is about the minimum length
Early text written in 2006 explains the "--abbrev=<n>" option to
"show only a partial prefix", without saying that the length of the
partial prefix is not necessarily the number given to the option to
ensure that the output names the object uniquely.

Update documentation for the diff family of commands, "blame",
"branch --verbose", "ls-files" and "ls-tree" to stress that the
short prefix must uniquely refer to an object, and <n> is merely
the mininum number of hexdigits used in the prefix.

Helped-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-04 14:04:44 -08:00
Junio C Hamano 7f7ebe054a Third batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-02 13:17:47 -08:00
Junio C Hamano ea9611573b Merge branch 'jc/doc-final-resend'
Update developer doc.

* jc/doc-final-resend:
  SubmittingPatches: clarify the purpose of the final resend
2020-11-02 13:17:47 -08:00
Junio C Hamano c5b2c9a8cb Merge branch 'es/tutorial-mention-asciidoc-early'
Doc update.

* es/tutorial-mention-asciidoc-early:
  MyFirstContribution: clarify asciidoc dependency
2020-11-02 13:17:47 -08:00
Junio C Hamano 292e53fa9d Merge branch 've/userdiff-bash'
The userdiff pattern learned to identify the function definition in
POSIX shells and bash.

* ve/userdiff-bash:
  userdiff: support Bash
2020-11-02 13:17:46 -08:00
Junio C Hamano 1ae0949a03 Merge branch 'mk/diff-ignore-regex'
"git diff" family of commands learned the "-I<regex>" option to
ignore hunks whose changed lines all match the given pattern.

* mk/diff-ignore-regex:
  diff: add -I<regex> that ignores matching changes
  merge-base, xdiff: zero out xpparam_t structures
2020-11-02 13:17:44 -08:00
Junio C Hamano b6fb70c985 Merge branch 'dl/diff-merge-base'
"git diff A...B" learned "git diff --merge-base A B", which is a
longer short-hand to say the same thing.

* dl/diff-merge-base:
  contrib/completion: complete `git diff --merge-base`
  builtin/diff-tree: learn --merge-base
  builtin/diff-index: learn --merge-base
  t4068: add --merge-base tests
  diff-lib: define diff_get_merge_base()
  diff-lib: accept option flags in run_diff_index()
  contrib/completion: extract common diff/difftool options
  git-diff.txt: backtick quote command text
  git-diff-index.txt: make --cached description a proper sentence
  t4068: remove unnecessary >tmp
2020-11-02 13:17:39 -08:00
Junio C Hamano 761a4e9ab1 Merge branch 'bk/sob-dco'
Document that the meaning of a Signed-off-by trailer can vary from
project to project in the end-user documentation, and clarify what
it means to this project.

* bk/sob-dco:
  Documentation: stylistically normalize references to Signed-off-by:
  SubmittingPatches: clarify DCO is our --signoff rule
  Documentation: clarify and expand description of --signoff
  doc: preparatory clean-up of description on the sign-off option
2020-11-02 13:17:39 -08:00
Junio C Hamano 307a53dd99 Merge branch 'ds/commit-graph-merging-fix'
When "git commit-graph" detects the same commit recorded more than
once while it is merging the layers, it used to die.  The code now
ignores all but one of them and continues.

* ds/commit-graph-merging-fix:
  commit-graph: don't write commit-graph when disabled
  commit-graph: ignore duplicates when merging layers
2020-11-02 13:17:39 -08:00
Philippe Blain 0cce88f1e4 doc: add more pointers to gitattributes(5) for userdiff
Several Git commands can make use of the builtin userdiff patterns, but
it's not obvious in the documentation. Add pointers to the 'Defining a
custom hunk header' part of gitattributes(5) in the description of the
following options:

- the '--function-context' option of `git diff` and friends
- the '--function-context' option of `git grep`
- the '-L :<funcname>' option of `git log`, `gitk` and `git blame`

In 'git-grep.txt', take the opportunity to use backticks in the
description of '--show-function', and improve the wording of the
desription of '--function-context'.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-01 15:54:14 -08:00
Philippe Blain a4514a46d9 blame-options.txt: also mention 'funcname' in '-L' description
Make it clearer that a function can be blamed by feeding `git blame`
'-L :<funcname>' by mentioning it at the beginnning of the description
of the '-L' option.

Also, in 'line-range-options.txt', which is used for git-log(1) and
gitk(1), do not parenthesize the mention of the ':<funcname>' mode, to
place it on equal footing with the '<start>,<end>' mode.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-01 15:54:14 -08:00
Philippe Blain fd5c74e781 doc: line-range: improve formatting
Improve the formatting of the description of the line-range option '-L'
for `git log`, `gitk` and `git blame`:

- Use bold for <start>, <end> and <funcname>
- Use backticks for literals

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-01 15:54:14 -08:00
Philippe Blain f9c8d8cbbe doc: log, gitk: move '-L' description to 'line-range-options.txt'
The description of the '-L' option for `git log` and `gitk` is almost
the same, but is repeated in both 'git-log.txt' and 'gitk.txt' (the
difference being that 'git-log.txt' lists the option with a space
after '-L', while 'gitk.txt' lists it as stuck and notes that `gitk`
only understands the stuck form).

Reduce duplication by creating a new file, 'line-range-options.txt',
and include it in both files.

To simplify the presentation, only list the stuck form for both
commands, and remove the note about `gitk` only understanding the stuck
form.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-01 15:54:14 -08:00
Sergey Organov 714d491af0 doc/diff-options: fix out of place mentions of '--patch/-p'
First, references to --patch and -p appeared in the description of
git-format-patch, where the options themselves are not included.

Next, the description of --unified option elsewhere had duplicate implied
statements: "Implies --patch. Implies -p."

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-31 13:14:26 -07:00
Junio C Hamano e2850a27a9 Second batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-30 13:04:24 -07:00
Junio C Hamano ad27df6a5c Git 2.29.2
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Sync with Git 2.29.2

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-29 14:25:15 -07:00
Junio C Hamano 898f80736c Git 2.29.2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-29 14:24:09 -07:00
Junio C Hamano a94bce62b9 Merge branch 'cc/doc-filter-branch-typofix' into maint
Docfix.

* cc/doc-filter-branch-typofix:
  filter-branch doc: fix filter-repo typo
2020-10-29 14:18:49 -07:00
Junio C Hamano f9b6481aed First batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-27 15:09:51 -07:00
Junio C Hamano 0e41cfad62 Merge branch 'dl/checkout-guess'
"git checkout" learned to use checkout.guess configuration variable
and enable/disable its "--[no-]guess" option accordingly.

* dl/checkout-guess:
  checkout: learn to respect checkout.guess
  Documentation/config/checkout: replace sq with backticks
2020-10-27 15:09:51 -07:00
Junio C Hamano f3cfeb3078 Merge branch 'dl/checkout-p-merge-base'
"git checkout -p A...B [-- <path>]" did not work, even though the
same command without "-p" correctly used the merge-base between
commits A and B.

* dl/checkout-p-merge-base:
  t2016: add a NEEDSWORK about the PERL prerequisite
  add-patch: add NEEDSWORK about comparing commits
  Doc: document "A...B" form for <tree-ish> in checkout and switch
  builtin/checkout: fix `git checkout -p HEAD...` bug
2020-10-27 15:09:51 -07:00
Junio C Hamano 40696c6727 Merge branch 'sb/clone-origin'
"git clone" learned clone.defaultremotename configuration variable
to customize what nickname to use to call the remote the repository
was cloned from.

* sb/clone-origin:
  clone: allow configurable default for `-o`/`--origin`
  clone: read new remote name from remote_name instead of option_origin
  clone: validate --origin option before use
  refs: consolidate remote name validation
  remote: add tests for add and rename with invalid names
  clone: use more conventional config/option layering
  clone: add tests for --template and some disallowed option pairs
2020-10-27 15:09:50 -07:00
Junio C Hamano de0a7effc8 Merge branch 'sk/force-if-includes'
"git push --force-with-lease[=<ref>]" can easily be misused to lose
commits unless the user takes good care of their own "git fetch".
A new option "--force-if-includes" attempts to ensure that what is
being force-pushed was created after examining the commit at the
tip of the remote ref that is about to be force-replaced.

* sk/force-if-includes:
  t, doc: update tests, reference for "--force-if-includes"
  push: parse and set flag for "--force-if-includes"
  push: add reflog check for "--force-if-includes"
2020-10-27 15:09:49 -07:00
Junio C Hamano 52b8c8c716 Merge branch 'ds/maintenance-part-2'
"git maintenance", an extended big brother of "git gc", continues
to evolve.

* ds/maintenance-part-2:
  maintenance: add incremental-repack auto condition
  maintenance: auto-size incremental-repack batch
  maintenance: add incremental-repack task
  midx: use start_delayed_progress()
  midx: enable core.multiPackIndex by default
  maintenance: create auto condition for loose-objects
  maintenance: add loose-objects task
  maintenance: add prefetch task
2020-10-27 15:09:47 -07:00
Junio C Hamano 26bb5437f6 Merge branch 'rs/worktree-list-show-locked'
"git worktree list" now shows if each worktree is locked.  This
possibly may open us to show other kinds of states in the future.

* rs/worktree-list-show-locked:
  worktree: teach `list` to annotate locked worktree
2020-10-27 15:09:47 -07:00
Ævar Arnfjörð Bjarmason 9144ba4cf5 remote: add meaningful exit code on missing/existing
Change the exit code for the likes of "git remote add/rename" to exit
with 2 if the remote in question doesn't exist, and 3 if it
does. Before we'd just die() and exit with the general 128 exit code.

This changes the output message from e.g.:

    fatal: remote origin already exists.

To:

    error: remote origin already exists.

Which I believe is a feature, since we generally use "fatal" for the
generic errors, and "error" for the more specific ones with a custom
exit code, but this part of the change may break code that already
relies on stderr parsing (not that we ever supported that...).

The motivation for this is a discussion around some code in GitLab's
gitaly which wanted to check this, and had to parse stderr to do so:
https://gitlab.com/gitlab-org/gitaly/-/merge_requests/2695

It's worth noting as an aside that a method of checking this that
doesn't rely on that is to check with "git config" whether the value
in question does or doesn't exist. That introduces a TOCTOU race
condition, but on the other hand this code (e.g. "git remote add")
already has a TOCTOU race.

We go through the config.lock for the actual setting of the config,
but the pseudocode logic is:

    read_config();
    check_config_and_arg_sanity();
    save_config();

So e.g. if a sleep() is added right after the remote_is_configured()
check in add() we'll clobber remote.NAME.url, and add another (usually
duplicate) remote.NAME.fetch entry (and other values, depending on
invocation).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-27 11:40:33 -07:00
Junio C Hamano d95b192efd SubmittingPatches: clarify the purpose of the final resend
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-26 22:33:48 -07:00
Junio C Hamano 1d1c4a8759 other small fixes for 2.29.2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-26 14:59:59 -07:00
Junio C Hamano 839129c6d8 Merge branch 'cc/doc-filter-branch-typofix'
Docfix.

* cc/doc-filter-branch-typofix:
  filter-branch doc: fix filter-repo typo
2020-10-26 14:59:59 -07:00
Junio C Hamano b927c80531 Git 2.29.1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-22 15:07:25 -07:00
Victor Engmark 2ff6c34612 userdiff: support Bash
Support POSIX, bashism and mixed function declarations, all four
compound command types, trailing comments and mixed whitespace.

Even though Bash allows locale-dependent characters in function names
<https://unix.stackexchange.com/a/245336/3645>, only detect function
names with characters allowed by POSIX.1-2017
<https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_235>
for simplicity. This should cover the vast majority of use cases, and
produces system-agnostic results.

Since a word pattern has to be specified, but there is no easy way to
know the default word pattern, use the default `IFS` characters for a
starter. A later patch can improve this.

Signed-off-by: Victor Engmark <victor@engmark.name>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-22 10:29:30 -07:00
Michał Kępień 296d4a94e7 diff: add -I<regex> that ignores matching changes
Add a new diff option that enables ignoring changes whose all lines
(changed, removed, and added) match a given regular expression.  This is
similar to the -I/--ignore-matching-lines option in standalone diff
utilities and can be used e.g. to ignore changes which only affect code
comments or to look for unrelated changes in commits containing a large
number of automatically applied modifications (e.g. a tree-wide string
replacement).  The difference between -G/-S and the new -I option is
that the latter filters output on a per-change basis.

Use the 'ignore' field of xdchange_t for marking a change as ignored or
not.  Since the same field is used by --ignore-blank-lines, identical
hunk emitting rules apply for --ignore-blank-lines and -I.  These two
options can also be used together in the same git invocation (they are
complementary to each other).

Rename xdl_mark_ignorable() to xdl_mark_ignorable_lines(), to indicate
that it is logically a "sibling" of xdl_mark_ignorable_regex() rather
than its "parent".

Signed-off-by: Michał Kępień <michal@isc.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20 12:53:26 -07:00
Christian Couder 3e0a5dc9af filter-branch doc: fix filter-repo typo
The name of the tool is 'git-filter-repo' not
'git-repo-filter'.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20 12:22:25 -07:00
Bradley M. Kuhn 3abd4a67d9 Documentation: stylistically normalize references to Signed-off-by:
Ted reported an old typo in the git-commit.txt and merge-options.txt.
Namely, the phrase "Signed-off-by line" was used without either a
definite nor indefinite article.

Upon examination, it seems that the documentation (including items in
Documentation/, but also option help strings) have been quite
inconsistent on usage when referring to `Signed-off-by`.

First, very few places used a definite or indefinite article with the
phrase "Signed-off-by line", but that was the initial typo that led
to this investigation.  So, normalize using either an indefinite or
definite article consistently.

The original phrasing, in Commit 3f971fc425 (Documentation updates,
2005-08-14), is "Add Signed-off-by line".  Commit 6f855371a5 (Add
--signoff, --check, and long option-names. 2005-12-09) switched to
using "Add `Signed-off-by:` line", but didn't normalize the former
commit to match.  Later commits seem to have cut and pasted from one
or the other, which is likely how the usage became so inconsistent.

Junio stated on the git mailing list in
<xmqqy2k1dfoh.fsf@gitster.c.googlers.com> a preference to leave off
the colon.  Thus, prefer `Signed-off-by` (with backticks) for the
documentation files and Signed-off-by (without backticks) for option
help strings.

Additionally, Junio argued that "trailer" is now the standard term to
refer to `Signed-off-by`, saying that "becomes plenty clear that we
are not talking about any random line in the log message".  As such,
prefer "trailer" over "line" anywhere the former word fits.

However, leave alone those few places in documentation that use
Signed-off-by to refer to the process (rather than the specific
trailer), or in places where mail headers are generally discussed in
comparison with Signed-off-by.

Reported-by: "Theodore Y. Ts'o" <tytso@mit.edu>
Signed-off-by: Bradley M. Kuhn <bkuhn@sfconservancy.org>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20 11:57:40 -07:00
Junio C Hamano a650fa7497 SubmittingPatches: clarify DCO is our --signoff rule
The description on sign-off and DCO was written back in the days
where there was only a choice between "use sign-off and it means the
contributor agrees to the Linux-kernel style DCO" and "not using
sign-off at all will make your patch unusable".  These days, we are
trying to clarify that the exact meaning of a sign-off varies
project to project.

Let's be more explicit when presenting what _our_ rules are.  It is
of secondary importance that it originally came from the kernel
project, so move the description as a historical note at the end,
while cautioning that what a sign-off means to us may be different from
what it means to other projects contributors may have been used to.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Reviewed-by: Bradley M. Kuhn <bkuhn@sfconservancy.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20 11:57:40 -07:00
Bradley M. Kuhn 53147b0d3b Documentation: clarify and expand description of --signoff
Building on past documentation improvements in b2c150d3aa (Expand
documentation describing --signoff, 2016-01-05), further clarify
that any project using Git may and often does set its own policy.

However, leave intact reference to the Linux DCO, which Git also
uses.  It is reasonable for Git to advocate for its own Signed-off-by
methodology in its documentation, as long as the documentation
remains respectful that YMMV and other projects may well have very
different contributor representations tied to Signed-off-by.

Signed-off-by: Bradley M. Kuhn <bkuhn@sfconservancy.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20 11:57:40 -07:00
Junio C Hamano ae2e0ab6c5 doc: preparatory clean-up of description on the sign-off option
Almost identical text on the signed-off-by trailer appears in the
documentation for "git commit" and "git merge" and its friends.

Introduce a new signoff-option.txt file to be shared.  A couple of
things of note are:

 - The short-form "-s" is available only in "git commit", but not in
   commands that are friends of "git merge", as it is used as a
   short-hand for "--strategy".

 - The original lacks description on the negated "--no-signoff" form
   on "git commit" side, but it equally is applicable.  It however
   was unclear in the original text that not adding a Signed-off-by
   trailer is the default, so rephrase to explain it as a way to
   countermand a --signoff option that appeared earlier on the same
   command line.

This is in preparation to apply a further clarification on what
exactly the Signed-off-by trailer means.

Suggested-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Reviewed-by: Bradley M. Kuhn <bkuhn@sfconservancy.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-20 11:57:35 -07:00
Emily Shaffer f5bcde6c58 MyFirstContribution: clarify asciidoc dependency
Per IRC:

[19:52] <lkmandy> With respect to the MyFirstContribution tutorial, I
will like to suggest this - Under the section "Adding Documentation",
just before the "make all doc" command, it will be really helpful to
prompt a user to check if they have the asciidoc package installed, if
they don't, the command should be provided or they can just be pointed
to install it

So, let's move the note about the dependency to before the build command
blockquote.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16 15:13:11 -07:00
Elijah Newren c64432aacd t6423: more involved rules for renaming directories into each other
Testcases 12b and 12c were both slightly weird; they were marked as
having a weird resolution, but with the note that even straightforward
simple rules can give weird results when the input is bizarre.

However, during optimization work for merge-ort, I discovered a
significant speedup that is possible if we add one more fairly
straightforward rule: we don't bother doing directory rename detection
if there are no new files added to the directory on the other side of
the history to be affected by the directory rename.  This seems like an
obvious and straightforward rule, but there was one funny corner case
where directory rename detection could affect only existing files: the
funny corner case where two directories are renamed into each other on
opposite sides of history.  In other words, it only results in a
different output for testcases 12b and 12c.

Since we already thought testcases 12b and 12c were weird anyway, and
because the optimization often has a significant effect on common cases
(but is entirely prevented if we can't change how 12b and 12c function),
let's add the additional rule and tweak how 12b and 12c work.  Split
both testcases into two (one where we add no new files, and one where
the side that doesn't rename a given directory will add files to it),
and mark them with the new expectation.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16 12:29:28 -07:00
Elijah Newren 8536821d05 t6423: update directory rename detection tests with new rule
While investigating the issues highlighted by the testcase in the
previous patch, I also found a shortcoming in the directory rename
detection rules.  Split testcase 6b into two to explain this issue
and update directory-rename-detection.txt to remove one of the previous
rules that I know believe to be detrimental.  Also, update the wording
around testcase 8e; while we are not modifying the results of that
testcase, we were previously unsure of the appropriate resolution of
that test and the new rule makes the previously chosen resolution for
that testcase a bit more solid.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16 12:29:28 -07:00
Elijah Newren b9718d0cc9 directory-rename-detection.txt: update references to regression tests
The regression tests for directory rename detection were renamed from
t6043 to t6423 in commit 919df31955 ("Collect merge-related tests to
t64xx", 2020-08-10); update this file to match.  Also, add a small
clarification to nearby text while we're at it.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16 12:29:27 -07:00
Derrick Stolee 0016b61818 maintenance: add troubleshooting guide to docs
The 'git maintenance run' subcommand takes a lock on the object database
to prevent concurrent processes from competing for resources. This is an
important safety measure to prevent possible repository corruption and
data loss.

This feature can lead to confusing behavior if a user is not aware of
it. Add a TROUBLESHOOTING section to the 'git maintenance' builtin
documentation that discusses these tradeoffs. The short version of this
section is that Git will not corrupt your repository, but if the list of
scheduled tasks takes longer than an hour then some scheduled tasks may
be dropped due to this object database collision. For example, a
long-running "daily" task at midnight might prevent an "hourly" task
from running at 1AM.

The opposite is also possible, but less likely as long as the "hourly"
tasks are much faster than the "daily" and "weekly" tasks.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16 08:36:42 -07:00
Derrick Stolee 61f7a383d3 maintenance: use 'incremental' strategy by default
The 'git maintenance (register|start)' subcommands add the current
repository to the global Git config so maintenance will operate on that
repository. It does not specify what maintenance should occur or how
often.

To make it simple for users to start background maintenance with a
recommended schedlue, update the 'maintenance.strategy' config option in
both the 'register' and 'start' subcommands. This allows users to
customize beyond the defaults using individual
'maintenance.<task>.schedule' options, but also the user can opt-out of
this strategy using 'maintenance.strategy=none'.

Helped-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16 08:36:42 -07:00
Derrick Stolee a4cb1a2339 maintenance: create maintenance.strategy config
To provide an on-ramp for users to use background maintenance without
several 'git config' commands, create a 'maintenance.strategy' config
option. Currently, the only important value is 'incremental' which
assigns the following schedule:

* gc: never
* prefetch: hourly
* commit-graph: hourly
* loose-objects: daily
* incremental-repack: daily

These tasks are chosen to minimize disruptions to foreground Git
commands and use few compute resources.

The 'maintenance.strategy' is intended as a baseline that can be
customzied further by manually assigning 'maintenance.<task>.enabled'
and 'maintenance.<task>.schedule' config options, which will override
any recommendation from 'maintenance.strategy'. This operates similarly
to config options like 'feature.experimental' which operate as "meta"
config options that change default config values.

This presents a way forward for updating the 'incremental' strategy in
the future or adding new strategies. For example, a potential strategy
could be to include a 'full' strategy that runs the 'gc' task weekly
and no other tasks by default.

Helped-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-16 08:36:42 -07:00
Rafael Silva c57b3367be worktree: teach `list` to annotate locked worktree
The "git worktree list" shows the absolute path to the working tree,
the commit that is checked out and the name of the branch. It is not
immediately obvious which of the worktrees, if any, are locked.

"git worktree remove" refuses to remove a locked worktree with
an error message. If "git worktree list" told which worktrees
are locked in its output, the user would not even attempt to
remove such a worktree, or would realize that
"git worktree remove -f -f <path>" is required.

Teach "git worktree list" to append "locked" to its output.
The output from the command becomes like so:

    $ git worktree list
    /path/to/main             abc123 [master]
    /path/to/worktree         456def (detached HEAD)
    /path/to/locked-worktree  123abc (detached HEAD) locked

Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Rafael Silva <rafaeloliveira.cs@gmail.com>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-12 12:24:29 -07:00
Derrick Stolee 85102ac71b commit-graph: don't write commit-graph when disabled
The core.commitGraph config setting can be set to 'false' to prevent
parsing commits from the commit-graph file(s). This causes an issue when
trying to write with "--split" which needs to distinguish between
commits that are in the existing commit-graph layers and commits that
are not. The existing mechanism uses parse_commit() and follows by
checking if there is a 'graph_pos' that shows the commit was parsed from
the commit-graph file.

When core.commitGraph=false, we do not parse the commits from the
commit-graph and 'graph_pos' indicates that no commits are in the
existing file. The --split logic moves forward creating a new layer on
top that holds all reachable commits, then possibly merges down into
those layers, resulting in duplicate commits. The previous change makes
that merging process more robust to such a situation in case it happens
in the written commit-graph data.

The easy answer here is to avoid writing a commit-graph if reading the
commit-graph is disabled. Since the resulting commit-graph will would not
be read by subsequent Git processes. This is more natural than forcing
core.commitGraph to be true for the 'write' process.

Reported-by: Thomas Braun <thomas.braun@virtuell-zuhause.de>
Helped-by: Jeff King <peff@peff.net>
Helped-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-09 14:16:32 -07:00
Junio C Hamano d4a392452e Git 2.29-rc1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 21:53:26 -07:00
Jean-Noël Avila 9f443f5531 doc: fix the bnf like style of some commands
In command line options, variables are entered between < and >

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 14:01:19 -07:00
Jean-Noël Avila 89eed6fa99 doc: git-remote fix ups
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 14:01:18 -07:00
Jean-Noël Avila 49fbf9ed71 doc: use linkgit macro where needed.
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 14:01:18 -07:00
Jean-Noël Avila df49a806ab git-bisect-lk2009: make continuation of list indented
That's clearer asciidoc formatting.

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 14:01:15 -07:00
Denton Liu 64f1f58fe7 checkout: learn to respect checkout.guess
The current behavior of git checkout/switch is that --guess is currently
enabled by default. However, some users may not wish for this to happen
automatically. Instead of forcing users to specify --no-guess manually
each time, teach these commands the checkout.guess configuration
variable that gives users the option to set a default behavior.

Teach the completion script to recognize the new config variable and
disable DWIM logic if it is set to false.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-08 09:25:29 -07:00
Denton Liu c693ef781b Doc: document "A...B" form for <tree-ish> in checkout and switch
Using "A...B" has been supported for the <tree-ish> argument for a
while. However, its support has never been explicitly documented.

Explicitly document it so that users know that it is available.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-07 09:49:05 -07:00
Denton Liu ef09e7ddf3 Documentation/config/checkout: replace sq with backticks
The modern style for Git documentation is to use backticks to quote
any command-line documenation so that it is typeset in monospace.
Replace all single quotes with backticks to conform to this.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-07 09:42:00 -07:00
Junio C Hamano d98273ba77 Git 2.29-rc0
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-05 14:01:56 -07:00
Junio C Hamano 67af910276 Merge branch 'sn/fast-import-doc'
Doc update.

* sn/fast-import-doc:
  fast-import: fix typo in documentation
2020-10-05 14:01:56 -07:00
Junio C Hamano 9d19e1773c Merge branch 'pb/submodule-doc-fix'
Doc update.

* pb/submodule-doc-fix:
  gitsubmodules doc: invoke 'ls-files' with '--recurse-submodules'
2020-10-05 14:01:55 -07:00
Junio C Hamano 5f8c70a148 Merge branch 'jk/format-auto-base-when-able'
"git format-patch" learns to take "whenAble" as a possible value
for the format.useAutoBase configuration variable to become no-op
when the  automatically computed base does not make sense.

* jk/format-auto-base-when-able:
  format-patch: teach format.useAutoBase "whenAble" option
2020-10-05 14:01:55 -07:00
Junio C Hamano 8e3ec76a20 Merge branch 'jk/refspecs-negative'
"git fetch" and "git push" support negative refspecs.

* jk/refspecs-negative:
  refspec: add support for negative refspecs
2020-10-05 14:01:54 -07:00
Junio C Hamano f6b06b4590 Merge branch 'rs/archive-add-file'
"git archive" learns the "--add-file" option to include untracked
files into a snapshot from a tree-ish.

* rs/archive-add-file:
  Makefile: use git-archive --add-file
  archive: add --add-file
  archive: read short blobs in archive.c::write_archive_entry()
2020-10-05 14:01:53 -07:00
Samanta Navarro 3be01e5ab1 fast-import: fix typo in documentation
Signed-off-by: Samanta Navarro <ferivoz@riseup.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-04 12:56:29 -07:00
Philippe Blain 7d15fdbe4c gitsubmodules doc: invoke 'ls-files' with '--recurse-submodules'
`git ls-files` was never taught to respect the `submodule.recurse`
configuration variable, and it is too late now to change that [1],
but still the command is mentioned in 'gitsubmodules(7)' as if it
does respect that config.

Adjust the call in 'gitsubmodules(7)' by calling 'ls-files' with the
'--recurse-submodules' option.

While at it, uniformize the capitalization in that file, and use
backticks instead of quotes for Git commands and configuration
variables.

[1] https://lore.kernel.org/git/pull.732.git.1599707259907.gitgitgadget@gmail.com/T/#u

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-04 12:54:07 -07:00
Junio C Hamano ab4691b67b Nineteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-04 12:49:15 -07:00
Junio C Hamano 2fa8aacc72 Merge branch 'jk/shortlog-group-by-trailer'
"git shortlog" has been taught to group commits by the contents of
the trailer lines, like "Reviewed-by:", "Coauthored-by:", etc.

* jk/shortlog-group-by-trailer:
  shortlog: allow multiple groups to be specified
  shortlog: parse trailer idents
  shortlog: rename parse_stdin_ident()
  shortlog: de-duplicate trailer values
  shortlog: match commit trailers with --group
  trailer: add interface for iterating over commit trailers
  shortlog: add grouping option
  shortlog: change "author" variables to "ident"
2020-10-04 12:49:14 -07:00
Junio C Hamano ea1f6118b7 Merge branch 'jc/fmt-merge-msg-suppress-destination'
Docfix.

* jc/fmt-merge-msg-suppress-destination:
  config/fmt-merge-msg.txt: drop space in quote
2020-10-04 12:49:13 -07:00
Junio C Hamano d1b75045a0 Merge branch 'tb/upload-pack-filters'
Hotfix.

* tb/upload-pack-filters:
  config/uploadpack.txt: fix typo in `--filter=tree:<n>`
2020-10-04 12:49:12 -07:00
Junio C Hamano 9839cce4a7 Merge branch 'eg/mailinfo-doc-scissors'
The explanation of the "scissors line" has been clarified.

* eg/mailinfo-doc-scissors:
  Doc: show example scissors line
2020-10-04 12:49:09 -07:00
Srinidhi Kaushik 3b5bf96573 t, doc: update tests, reference for "--force-if-includes"
Update test cases for the new option, and document its usage
and update related references.

Update test cases for the new option, and document its usage
and update related references.

 - t/t5533-push-cas.sh:
   Update test cases for "compare-and-swap" when used along with
   "--force-if-includes" helps mitigate overwrites when remote
   refs are updated in the background; allows forced updates when
   changes from remote are integrated locally.

 - Documentation:
   Add reference for the new option, configuration setting
   ("push.useForceIfIncludes") and advise messages.

Signed-off-by: Srinidhi Kaushik <shrinidhi.kaushik@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-03 09:59:19 -07:00
Jacob Keller 7efba5fa39 format-patch: teach format.useAutoBase "whenAble" option
The format.useAutoBase configuration option exists to allow users to
enable '--base=auto' for format-patch by default.

This can sometimes lead to poor workflow, due to unexpected failures
when attempting to format an ancient patch:

    $ git format-patch -1 <an old commit>
    fatal: base commit shouldn't be in revision list

This can be very confusing, as it is not necessarily immediately obvious
that the user requested a --base (since this was in the configuration,
not on the command line).

We do want --base=auto to fail when it cannot provide a suitable base,
as it would be equally confusing if a formatted patch did not include
the base information when it was requested.

Teach format.useAutoBase a new mode, "whenAble". This mode will cause
format-patch to attempt to include a base commit when it can. However,
if no valid base commit can be found, then format-patch will continue
formatting the patch without a base commit.

In order to avoid making yet another branch name unusable with --base,
do not teach --base=whenAble or --base=whenable.

Instead, refactor the base_commit option to use a callback, and rely on
the global configuration variable auto_base.

This does mean that a user cannot request this optional base commit
generation from the command line. However, this is likely not too
valuable. If the user requests base information manually, they will be
immediately informed of the failure to acquire a suitable base commit.
This allows the user to make an informed choice about whether to
continue the format.

Add tests to cover the new mode of operation for --base.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-01 15:22:10 -07:00
Sean Barag de9ed3ef37 clone: allow configurable default for `-o`/`--origin`
While the default remote name of "origin" can be changed at clone-time
with `git clone`'s `--origin` option, it was previously not possible
to specify a default value for the name of that remote.  Add support for
a new `clone.defaultRemoteName` config, with the newly-created remote
name resolved in priority order:

1. (Highest priority) A remote name passed directly to `git clone -o`
2. A `clone.defaultRemoteName=new_name` in config `git clone -c`
3. A `clone.defaultRemoteName` value set in `/path/to/template/config`,
   where `--template=/path/to/template` is provided
4. A `clone.defaultRemoteName` value set in a non-template config file
5. The default value of `origin`

Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Derrick Stolee <stolee@gmail.com>
Helped-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Sean Barag <sean@barag.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-30 22:09:13 -07:00
Jacob Keller c0192df630 refspec: add support for negative refspecs
Both fetch and push support pattern refspecs which allow fetching or
pushing references that match a specific pattern. Because these patterns
are globs, they have somewhat limited ability to express more complex
situations.

For example, suppose you wish to fetch all branches from a remote except
for a specific one. To allow this, you must setup a set of refspecs
which match only the branches you want. Because refspecs are either
explicit name matches, or simple globs, many patterns cannot be
expressed.

Add support for a new type of refspec, referred to as "negative"
refspecs. These are prefixed with a '^' and mean "exclude any ref
matching this refspec". They can only have one "side" which always
refers to the source. During a fetch, this refers to the name of the ref
on the remote. During a push, this refers to the name of the ref on the
local side.

With negative refspecs, users can express more complex patterns. For
example:

 git fetch origin refs/heads/*:refs/remotes/origin/* ^refs/heads/dontwant

will fetch all branches on origin into remotes/origin, but will exclude
fetching the branch named dontwant.

Refspecs today are commutative, meaning that order doesn't expressly
matter. Rather than forcing an implied order, negative refspecs will
always be applied last. That is, in order to match, a ref must match at
least one positive refspec, and match none of the negative refspecs.
This is similar to how negative pathspecs work.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-30 14:52:00 -07:00
Junio C Hamano 306ee63a70 Eighteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-29 14:01:22 -07:00
Junio C Hamano e76ae33009 Merge branch 'jk/make-protocol-v2-the-default'
The transport protocol v2 has become the default again.

* jk/make-protocol-v2-the-default:
  protocol: re-enable v2 protocol by default
2020-09-29 14:01:20 -07:00
Junio C Hamano 288ed98bf7 Merge branch 'tb/bloom-improvements'
"git commit-graph write" learned to limit the number of bloom
filters that are computed from scratch with the --max-new-filters
option.

* tb/bloom-improvements:
  commit-graph: introduce 'commitGraph.maxNewFilters'
  builtin/commit-graph.c: introduce '--max-new-filters=<n>'
  commit-graph: rename 'split_commit_graph_opts'
  bloom: encode out-of-bounds filters as non-empty
  bloom/diff: properly short-circuit on max_changes
  bloom: use provided 'struct bloom_filter_settings'
  bloom: split 'get_bloom_filter()' in two
  commit-graph.c: store maximum changed paths
  commit-graph: respect 'commitGraph.readChangedPaths'
  t/helper/test-read-graph.c: prepare repo settings
  commit-graph: pass a 'struct repository *' in more places
  t4216: use an '&&'-chain
  commit-graph: introduce 'get_bloom_filter_settings()'
2020-09-29 14:01:20 -07:00
Junio C Hamano c5a8f1efc0 Merge branch 'bc/faq-misc'
More FAQ entries.

* bc/faq-misc:
  docs: explain how to deal with files that are always modified
  docs: explain why reverts are not always applied on merge
  docs: explain why squash merges are broken with long-running branches
2020-09-29 14:01:20 -07:00
Evan Gates 287416dba6 Doc: show example scissors line
The text tries to say the code accepts many variations that look remotely
like scissors and perforation marks, but gives too little detail for users
to decide what is and what is not taken as a scissors line for themselves.
Instead of describing the heuristics more, just spell out what will always
be accepted, namely "-- >8 --", as it would not help users to give them
more choices and flexibility and be "creative" in their scissors line.

Signed-off-by: Evan Gates <evan.gates@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-28 16:09:04 -07:00
Martin Ågren 71ccaa0993 config/uploadpack.txt: fix typo in `--filter=tree:<n>`
That should be a ":", not a second "=". While at it, refer to the
placeholder "<n>" as "<n>", not "n" (see, e.g., the entry just before
this one).

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-27 14:23:20 -07:00
Martin Ågren 10a758479e config/fmt-merge-msg.txt: drop space in quote
We document how `merge.suppressDest` can be used to omit " into <branch
name>" from the title of the merge message. It is true that we omit the
space character before "into", but that lone double quote character
risks ending up on the wrong side of a line break, looking a bit out of
place. This currently happens with, e.g., 80-character terminals.

Drop that leading quoted space. The result should be just as clear about
how this option affects the formatted message.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-27 14:22:41 -07:00
Jeff King 63d24fa0b0 shortlog: allow multiple groups to be specified
Now that shortlog supports reading from trailers, it can be useful to
combine counts from multiple trailers, or between trailers and authors.
This can be done manually by post-processing the output from multiple
runs, but it's non-trivial to make sure that each name/commit pair is
counted only once.

This patch teaches shortlog to accept multiple --group options on the
command line, and pull data from all of them. That makes it possible to
run:

  git shortlog -ns --group=author --group=trailer:co-authored-by

to get a shortlog that counts authors and co-authors equally.

The implementation is mostly straightforward. The "group" enum becomes a
bitfield, and the trailer key becomes a list. I didn't bother
implementing the multi-group semantics for reading from stdin. It would
be possible to do, but the existing matching code makes it awkward, and
I doubt anybody cares.

The duplicate suppression we used for trailers now covers authors and
committers as well (though in non-trailer single-group mode we can skip
the hash insertion and lookup, since we only see one value per commit).

There is one subtlety: we now care about the case when no group bit is
set (in which case we default to showing the author). The caller in
builtin/log.c needs to be adapted to ask explicitly for authors, rather
than relying on shortlog_init(). It would be possible with some
gymnastics to make this keep working as-is, but it's not worth it for a
single caller.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-27 12:21:05 -07:00
Jeff King 56d5dde752 shortlog: parse trailer idents
Trailers don't necessarily contain name/email identity values, so
shortlog has so far treated them as opaque strings. However, since many
trailers do contain identities, it's useful to treat them as such when
they can be parsed. That lets "-e" work as usual, as well as mailmap.

When they can't be parsed, we'll continue with the old behavior of
treating them as a single string (there's no new test for that here,
since the existing tests cover a trailer like this).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-27 12:21:05 -07:00
Jeff King f17b0b99bf shortlog: de-duplicate trailer values
The current documentation is vague about what happens with
--group=trailer:signed-off-by when we see a commit with:

  Signed-off-by: One
  Signed-off-by: Two
  Signed-off-by: One

We clearly should credit both "One" and "Two", but should "One" get
credited twice? The current code does so, but mostly because that was
the easiest thing to do. It's probably more useful to count each commit
at most once. This will become especially important when we allow
values from multiple sources in a future patch.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-27 12:21:05 -07:00
Jeff King 47beb37bc6 shortlog: match commit trailers with --group
If a project uses commit trailers, this patch lets you use
shortlog to see who is performing each action. For example,
running:

  git shortlog -ns --group=trailer:reviewed-by

in git.git shows who has reviewed. You can even use a custom
format to see things like who has helped whom:

  git shortlog --format="...helped %an (%ad)" \
               --group=trailer:helped-by

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-27 12:21:05 -07:00
Jeff King 92338c450b shortlog: add grouping option
In preparation for adding more grouping types, let's refactor the
committer/author grouping code and add a user-facing option that binds
them together. In particular:

  - the main option is now "--group", to make it clear
    that the various group types are mutually exclusive. The
    "--committer" option is an alias for "--group=committer".

  - we keep an enum rather than a binary flag, to prepare
    for more values

  - we prefer switch statements to ternary assignment, since
    other group types will need more custom code

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-27 12:21:05 -07:00
Junio C Hamano 9bc233ae1c Seventeenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-09-25 15:25:42 -07:00
Junio C Hamano 6c430a647c Merge branch 'jx/proc-receive-hook'
"git receive-pack" that accepts requests by "git push" learned to
outsource most of the ref updates to the new "proc-receive" hook.

* jx/proc-receive-hook:
  doc: add documentation for the proc-receive hook
  transport: parse report options for tracking refs
  t5411: test updates of remote-tracking branches
  receive-pack: new config receive.procReceiveRefs
  doc: add document for capability report-status-v2
  New capability "report-status-v2" for git-push
  receive-pack: feed report options to post-receive
  receive-pack: add new proc-receive hook
  t5411: add basic test cases for proc-receive hook
  transport: not report a non-head push as a branch
2020-09-25 15:25:39 -07:00
Junio C Hamano 48794acc50 Merge branch 'ds/maintenance-part-1'
A "git gc"'s big brother has been introduced to take care of more
repository maintenance tasks, not limited to the object database
cleaning.

* ds/maintenance-part-1:
  maintenance: add trace2 regions for task execution
  maintenance: add auto condition for commit-graph task
  maintenance: use pointers to check --auto
  maintenance: create maintenance.<task>.enabled config
  maintenance: take a lock on the objects directory
  maintenance: add --task option
  maintenance: add commit-graph task
  maintenance: initialize task array
  maintenance: replace run_auto_gc()
  maintenance: add --quiet option
  maintenance: create basic maintenance runner
2020-09-25 15:25:38 -07:00