Commit Graph

15051 Commits

Author SHA1 Message Date
Linus Arver
6ccbc66794 trailer doc: <token> is a <key> or <keyAlias>, not both
The `--trailer` option takes a "<token>=<value>" argument, for example

    --trailer "Acked-by=Bob"

And in this exampple it is understood that "Acked-by" is the <token>.
However, the user can use a shorter "ack" string by defining
configuration like

    git config trailer.ack.key "Acked-by"

However, in the docs we define the above configuration as

    trailer.<token>.key

so the <token> can mean either the longer "Acked-by" or the shorter
"ack".

Separate the two meanings of <token> into <key> and <keyAlias>, and
update the configuration syntax to say "trailer.<keyAlias>.key".

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Linus Arver
ab76661f22 trailer doc: separator within key suppresses default separator
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Linus Arver
db97296122 trailer doc: emphasize the effect of configuration variables
The sentence does not mention the effect of configuration variables at
all, when they are actively used by default (unless --parse is
specified) to potentially add new trailers, without the user having to
always supply --trailer manually.

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Linus Arver
289a0b2447 trailer --unfold help: prefer "reformat" over "join"
The phrase "join whitespace-continued values" requires some additional
context. For example, "whitespace" means newlines (not just space
characters), and "join" means to join only the multiple lines together
for a single trailer (and not that we are joining multiple trailers
together). That is, "join" means to convert

    token: This is a very long value, with spaces and
      newlines in it.

to

    token: This is a very long value, with spaces and newlines in it.

and does not mean to convert

    token: value1
    token: value2

to

    token: value1 value2.

Update the help text to resolve the above ambiguity. While we're add it,
update the docs to use similar language as the change in the help text.

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Linus Arver
cb088cbe0f trailer --parse docs: add explanation for its usefulness
For users who are skimming the docs to go straight to the individual
breakdown of each flag, it may not be clear why --parse is a convenience
alias (without them also looking at the other options that --parse turns
on). To save them the trouble of looking at the other options (and
computing what that would mean), describe a summary of the overall
effect.

Similarly update the area when we first mention --parse near the top of
the doc.

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Linus Arver
a6c72e7046 trailer --only-input: prefer "configuration variables" over "rules"
Use the phrase "configuration variables" instead of "rules" because

(1) we already say "configuration variables" in multiple
    places in the docs (where the word "rules" is only used for describing
    "--only-input" behavior and for an unrelated case of mentioning how
    the trailers do not follow "rules for RFC 822 headers"), and

(2) this phrase is more specific than just "rules".

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Linus Arver
467bb1b97a trailer: trailer location is a place, not an action
Fix the help text to say "placement" instead of "action" because the
values are placements, not actions.

While we're at it, tweak the documentation to say "placements" instead
of "values", similar to how the existing language for "--if-exists" uses
the word "action" to describe both the syntax (with the phrase
"--if-exists <action>") and the possible values (with the phrase
"possible actions").

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Linus Arver
f659c56a8c trailer doc: narrow down scope of --where and related flags
The wording "all configuration variables" is misleading (the same could
be said to the descriptions of the "--[no-]if-exists" and the
"--[no-]if-missing" options).  Specifying --where=value overrides only
the trailer.where variable and applicable trailer.<token>.where
variables, and --no-where stops the overriding of these variables.
Ditto for the other two with their relevant configuration variables.

Reported-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Linus Arver
73574f21b4 trailer: add tests to check defaulting behavior with --no-* flags
While the "--no-where" flag is tested, the "--no-if-exists" and
"--no-if-missing" flags are not, so add tests for them. But also add
tests for all "--no-*" flags to check their effects, both when (1) there
are relevant configuration variables set, and (2) they are not set.

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-09-07 23:04:44 -07:00
Junio C Hamano
ac83bc5054 Git 2.42-rc0
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-08-04 10:52:31 -07:00
Junio C Hamano
23b20fff3a Merge branch 'jc/doc-sent-patch-now-what'
Process document update.

* jc/doc-sent-patch-now-what:
  MyFirstContribution: refrain from self-iterating too much
2023-08-04 10:52:31 -07:00
Junio C Hamano
840affcb8d Merge branch 'la/doc-choose-starting-point-fixup'
Clarify how to pick a starting point for a new topic in the
SubmittingPatches document.

* la/doc-choose-starting-point-fixup:
  SubmittingPatches: use of older maintenance tracks is an exception
  SubmittingPatches: explain why 'next' and above are inappropriate base
  SubmittingPatches: choice of base for fixing an older maintenance track
2023-08-04 10:52:30 -07:00
Junio C Hamano
a53e8a6488 Merge branch 'pv/doc-submodule-update-settings'
Rewrite the description of giving a custom command to the
submodule.<name>.update configuration variable.

* pv/doc-submodule-update-settings:
  doc: highlight that .gitmodules does not support !command
2023-08-04 10:52:30 -07:00
Junio C Hamano
dd68b57fc4 Merge branch 'la/doc-choose-starting-point'
Clarify how to choose the starting point for a new topic in
developer guidance document.

* la/doc-choose-starting-point:
  SubmittingPatches: simplify guidance for choosing a starting point
  SubmittingPatches: emphasize need to communicate non-default starting points
  SubmittingPatches: de-emphasize branches as starting points
  SubmittingPatches: discuss subsystems separately from git.git
  SubmittingPatches: reword awkward phrasing
2023-08-04 10:52:30 -07:00
Junio C Hamano
1b0a512956 The eighteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-08-02 09:37:52 -07:00
Taylor Blau
955c2b1c6a Documentation/RelNotes/2.42.0.txt: typofix
Fix a typo introduced in aa9166bcc0 (The ninth batch, 2023-07-08).

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-08-02 09:37:52 -07:00
Junio C Hamano
70e5c5dddd Merge branch 'ks/ref-filter-describe'
"git branch --list --format=<format>" and friends are taught
a new "%(describe)" placeholder.

* ks/ref-filter-describe:
  ref-filter: add new "describe" atom
  ref-filter: add multiple-option parsing functions
2023-08-02 09:37:24 -07:00
Junio C Hamano
ee48e70a82 The seventeenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-28 09:45:22 -07:00
Junio C Hamano
010447cf09 MyFirstContribution: refrain from self-iterating too much
Finding mistakes in and improving your own patches is a good idea,
but doing so too quickly is being inconsiderate to reviewers who
have just seen the initial iteration and taking their time to review
it.  Encourage new developers to perform such a self review before
they send out their patches, not after.  After sending a patch that
they immediately found mistakes in, they are welcome to comment on
them, mentioning what and how they plan to improve them in an
updated version, before sending out their updates.

Helped-by: Torsten Bögershausen <tboegi@web.de>
Helped-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-27 17:44:07 -07:00
Junio C Hamano
bfce02c22f The sixteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-27 15:26:37 -07:00
Junio C Hamano
7fb1483c27 Merge branch 'jc/gitignore-doc-pattern-markup'
Doc mark-up update.

* jc/gitignore-doc-pattern-markup:
  gitignore.txt: mark up explanation of patterns consistently
2023-07-27 15:26:37 -07:00
Junio C Hamano
369998df83 SubmittingPatches: use of older maintenance tracks is an exception
While we could technically fix each and every bug on top of the
commit that introduced it, it is not necessarily practical.  For
trivial and low-value bugfixes, it often is simpler and sufficient
to just fix it in the current maintenance track, leaving the bug
unfixed in the older maintenance tracks.

Demote the "use older maintenance track to fix old bugs" as a side
note, and explain that the choice is used only in exceptional cases.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-27 13:07:40 -07:00
Junio C Hamano
f835de52d7 SubmittingPatches: explain why 'next' and above are inappropriate base
The 'next' branch is primarily meant to be a testing ground to make
sure that topics that are reasonably well done work well together.
Building a new work on it would mean everything that was already in
'next' must have graduated to 'master' before the new work can also
be merged to 'master', and that is why we do not encourage basing
new work on 'next'.

Helped-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-27 13:06:20 -07:00
Junio C Hamano
b4fce4b6e4 The fifteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-26 14:13:16 -07:00
Junio C Hamano
89672f14d5 Merge branch 'jr/gitignore-doc-example-markup'
Doc update.

* jr/gitignore-doc-example-markup:
  gitignore.txt: use backticks instead of double quotes
2023-07-26 14:13:15 -07:00
Junio C Hamano
37f6040764 SubmittingPatches: choice of base for fixing an older maintenance track
When working on an high-value bugfix that must be given to ancient
maintenance tracks, a starting point that is older than `maint` may
have to be chosen.

Helped-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-26 09:39:00 -07:00
Petar Vutov
7cebc5bd78 doc: highlight that .gitmodules does not support !command
Bugfix for fc01a5d2 (submodule update documentation: don't repeat
ourselves, 2016-12-27).

The `custom command` and `none` options are described as sharing the
same limitations, but one is allowed in .gitmodules and the other is
not.

Rewrite the description for custom commands to be more precise,
and make it easier for readers to notice that custom commands cannot
be used in the .gitmodules file.

Signed-off-by: Petar Vutov <pvutov@imap.cc>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-25 14:55:07 -07:00
Junio C Hamano
a80be15292 The fourteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-25 12:05:40 -07:00
Kousik Sanagavarapu
f5d18f8c0e ref-filter: add new "describe" atom
Duplicate the logic of %(describe) and friends from pretty to
ref-filter. In the future, this change helps in unifying both the
formats as ref-filter will be able to do everything that pretty is doing
and we can have a single interface.

The new atom "describe" and its friends are equivalent to the existing
pretty formats with the same name.

Helped-by: Junio C Hamano <gitster@pobox.com>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: Kousik Sanagavarapu <five231003@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-24 10:42:29 -07:00
Junio C Hamano
e43f4fd0bd The thirteenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-21 13:47:26 -07:00
Junio C Hamano
39fe402d67 Merge branch 'tb/refs-exclusion-and-packed-refs'
Enumerating refs in the packed-refs file, while excluding refs that
match certain patterns, has been optimized.

* tb/refs-exclusion-and-packed-refs:
  ls-refs.c: avoid enumerating hidden refs where possible
  upload-pack.c: avoid enumerating hidden refs where possible
  builtin/receive-pack.c: avoid enumerating hidden references
  refs.h: implement `hidden_refs_to_excludes()`
  refs.h: let `for_each_namespaced_ref()` take excluded patterns
  revision.h: store hidden refs in a `strvec`
  refs/packed-backend.c: add trace2 counters for jump list
  refs/packed-backend.c: implement jump lists to avoid excluded pattern(s)
  refs/packed-backend.c: refactor `find_reference_location()`
  refs: plumb `exclude_patterns` argument throughout
  builtin/for-each-ref.c: add `--exclude` option
  ref-filter.c: parameterize match functions over patterns
  ref-filter: add `ref_filter_clear()`
  ref-filter: clear reachable list pointers after freeing
  ref-filter.h: provide `REF_FILTER_INIT`
  refs.c: rename `ref_filter`
2023-07-21 13:47:26 -07:00
Junio C Hamano
d6f598e443 gitignore.txt: mark up explanation of patterns consistently
In the "PATTERN FORMAT" section, all the other pattern elements are
shown as `monospace` literals inside "double quoted" strings.  Do
the same for the explanation of a slash to make it consistent.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-18 12:19:08 -07:00
Junio C Hamano
cba07a324d The twelfth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-18 07:29:00 -07:00
Junio C Hamano
d6e67222c1 Merge branch 'mh/doc-credential-helpers'
Doc update.

* mh/doc-credential-helpers:
  doc: gitcredentials: link to helper list
2023-07-18 07:28:52 -07:00
Johan Ruokangas
3437f549dd gitignore.txt: use backticks instead of double quotes
Among four examples, only this one used "double quoted" sample
patterns, but all others marked up the patterns in `monospace`.

Signed-off-by: Johan Ruokangas <johan@latehours.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-18 06:56:19 -07:00
Junio C Hamano
5e238546dc The eleventh batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-17 11:30:43 -07:00
Junio C Hamano
d5bb430ec6 Merge branch 'vd/adjust-mfow-doc-to-updated-headers'
Code snippets in a tutorial document no longer compiled after
recent header shuffling, which have been corrected.

* vd/adjust-mfow-doc-to-updated-headers:
  docs: add necessary headers to Documentation/MFOW.txt
2023-07-17 11:30:42 -07:00
Junio C Hamano
830b4a04c4 The tenth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-14 10:46:08 -07:00
Junio C Hamano
81ebc54e81 Merge branch 'ks/ref-filter-signature'
The "git for-each-ref" family of commands learned placeholders
related to GPG signature verification.

* ks/ref-filter-signature:
  ref-filter: add new "signature" atom
  t/lib-gpg: introduce new prereq GPG2
2023-07-14 10:46:07 -07:00
Linus Arver
0a02ca2383 SubmittingPatches: simplify guidance for choosing a starting point
Background: The guidance to "base your work on the oldest branch that
your change is relevant to" was added in d0c26f0f56 (SubmittingPatches:
Add new section about what to base work on, 2010-04-19). That commit
also added the bullet points which describe the scenarios where one
would use one of the following named branches: "maint", "master",
"next", and "seen" ("pu" in the original as that was the name of this
branch before it was renamed, per 828197de8f (docs: adjust for the
recent rename of `pu` to `seen`, 2020-06-25)). The guidance was probably
taken from existing similar language introduced in the "Merge upwards"
section of gitworkflows in f948dd8992 (Documentation: add manpage about
workflows, 2008-10-19).

Summary: This change simplifies the guidance by pointing users to just
"maint" or "master". But it also gives an explanation of why that is
preferred and what is meant by preferring "older" branches (which might
be confusing to some because "old" here is meant in relative terms
between these named branches, not in terms of the age of the branches
themselves). We also add an example to illustrate why it would be a bad
idea to use "next" as a starting point, which may not be so obvious to
new contributors.

Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-14 10:31:43 -07:00
Linus Arver
5c98149ce4 SubmittingPatches: emphasize need to communicate non-default starting points
The phrase

    and unless it targets the `master` branch (which is the default),
    mark your patches as such.

is tightly packed with several things happening in just two lines of
text. It also feels like it is not that important because of the terse
treatment. This is a problem because (1) it has the potential to confuse
new contributors, and (2) it may be glossed over for those skimming the
docs.

Emphasize and elaborate on this guidance by promoting it to its own
separate paragraph.

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-14 10:31:43 -07:00
Linus Arver
b5dbfe28a4 SubmittingPatches: de-emphasize branches as starting points
It could be that a suitable branch does not exist, so instead just use
the phrase "starting point". Technically speaking the starting point
would be a commit (not a branch) anyway.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-14 10:31:43 -07:00
Linus Arver
3423e372e4 SubmittingPatches: discuss subsystems separately from git.git
The discussion around subsystems disrupts the flow of discussion in the
surrounding area, which only deals with starting points used for the
git.git project. So move this bullet point out to the end.

Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-14 10:31:43 -07:00
Linus Arver
fc0825d561 SubmittingPatches: reword awkward phrasing
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-14 10:31:43 -07:00
Taylor Blau
8255dd8a3d builtin/for-each-ref.c: add --exclude option
When using `for-each-ref`, it is sometimes convenient for the caller to
be able to exclude certain parts of the references.

For example, if there are many `refs/__hidden__/*` references, the
caller may want to emit all references *except* the hidden ones.
Currently, the only way to do this is to post-process the output, like:

    $ git for-each-ref --format='%(refname)' | grep -v '^refs/hidden/'

Which is do-able, but requires processing a potentially large quantity
of references.

Teach `git for-each-ref` a new `--exclude=<pattern>` option, which
excludes references from the results if they match one or more excluded
patterns.

This patch provides a naive implementation where the `ref_filter` still
sees all references (including ones that it will discard) and is left to
check whether each reference matches any excluded pattern(s) before
emitting them.

By culling out references we know the caller doesn't care about, we can
avoid allocating memory for their storage, as well as spending time
sorting the output (among other things). Even the naive implementation
provides a significant speed-up on a modified copy of linux.git (that
has a hidden ref pointing at each commit):

    $ hyperfine \
      'git.compile for-each-ref --format="%(objectname) %(refname)" | grep -vE "[0-9a-f]{40} refs/pull/"' \
      'git.compile for-each-ref --format="%(objectname) %(refname)" --exclude refs/pull/'
    Benchmark 1: git.compile for-each-ref --format="%(objectname) %(refname)" | grep -vE "[0-9a-f]{40} refs/pull/"
      Time (mean ± σ):     820.1 ms ±   2.0 ms    [User: 703.7 ms, System: 152.0 ms]
      Range (min … max):   817.7 ms … 823.3 ms    10 runs

    Benchmark 2: git.compile for-each-ref --format="%(objectname) %(refname)" --exclude refs/pull/
      Time (mean ± σ):     106.6 ms ±   1.1 ms    [User: 99.4 ms, System: 7.1 ms]
      Range (min … max):   104.7 ms … 109.1 ms    27 runs

    Summary
      'git.compile for-each-ref --format="%(objectname) %(refname)" --exclude refs/pull/' ran
        7.69 ± 0.08 times faster than 'git.compile for-each-ref --format="%(objectname) %(refname)" | grep -vE "[0-9a-f]{40} refs/pull/"'

Subsequent patches will improve on this by avoiding visiting excluded
sections of the `packed-refs` file in certain cases.

Co-authored-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-10 14:48:55 -07:00
M Hickford
4c9cb51fe7 doc: gitcredentials: link to helper list
Link to community list of credential helpers. This is useful information
for users.

Describe how OAuth credential helpers work. OAuth is a user-friendly
alternative to personal access tokens and SSH keys. Reduced setup cost
makes it easier for users to contribute to projects across multiple
forges.

Signed-off-by: M Hickford <mirth.hickford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-10 10:35:55 -07:00
Junio C Hamano
aa9166bcc0 The ninth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-08 11:23:08 -07:00
Junio C Hamano
061c58647e The eighth batch
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-06 11:54:48 -07:00
Junio C Hamano
1d76e69212 Merge branch 'jc/doc-hash-object-types'
Doc update.

* jc/doc-hash-object-types:
  docs: add git hash-object -t option's possible values
2023-07-06 11:54:47 -07:00
Junio C Hamano
a9cc3b8fc7 Merge branch 'tl/notes-separator'
'git notes append' was taught '--separator' to specify string to insert
between paragraphs.

* tl/notes-separator:
  notes: introduce "--no-separator" option
  notes.c: introduce "--[no-]stripspace" option
  notes.c: append separator instead of insert by pos
  notes.c: introduce '--separator=<paragraph-break>' option
  t3321: add test cases about the notes stripspace behavior
  notes.c: use designated initializers for clarity
  notes.c: cleanup 'strbuf_grow' call in 'append_edit'
2023-07-06 11:54:47 -07:00