Commit Graph

311 Commits (v2.48.0-rc0)

Author SHA1 Message Date
Patrick Steinhardt 00ab97b1bc Documentation: add comparison of build systems
We're contemplating whether to eventually replace our build systems with
a build system that is easier to use. Add a comparison of build systems
to our technical documentation as a baseline for discussion.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-07 07:52:13 +09:00
Patrick Steinhardt 023c3370ac Documentation: extract script to generate a list of mergetools
We include the list of available mergetools into our manpages. Extract
the script that performs this logic such that we can reuse it in other
build systems.

While at it, refactor the Makefile targets such that we don't create
"mergetools-list.made" anymore. It shouldn't be necessary, as we can
instead have other targets depend on "mergetools-{diff,merge}.txt"
directly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-07 07:52:13 +09:00
Patrick Steinhardt 628d49f6e5 Documentation: teach "cmd-list.perl" about out-of-tree builds
The "cmd-list.perl" script generates a list of commands that can be
included into our manpages. The script doesn't know about out-of-tree
builds and instead writes resulting files into the source directory.

Adapt it such that we can read data from the source directory and write
data into the build directory.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-07 07:52:12 +09:00
Patrick Steinhardt 9219325be7 Documentation: allow sourcing generated includes from separate dir
Our documentation uses "include::" directives to include parts that are
either reused across multiple documents or parts that we generate at
build time. Unfortunately, top-level includes are only ever resolved
relative to the base directory, which is typically the directory of the
including document. Most importantly, it is not possible to have either
asciidoc or asciidoctor search multiple directories.

It follows that both kinds of includes must live in the same directory.
This is of course a bummer for out-of-tree builds, because here the
dynamically-built includes live in the build directory whereas the
static includes live in the source directory.

Introduce a `build_dir` attribute and prepend it to all of our includes
for dynamically-built files. This attribute gets set to the build
directory and thus converts the include path to an absolute path, which
asciidoc and asciidoctor know how to resolve.

Note that this change also requires us to update "build-docdep.perl",
which tries to figure out included files such our Makefile can set up
proper build-time dependencies. This script simply scans through the
source files for any lines that match "^include::" and treats the
remainder of the line as included file path. But given that those may
now contain the "{build_dir}" variable we have to teach the script to
replace that attribute with the actual build directory.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-07 07:52:12 +09:00
Patrick Steinhardt a38edab7c8 Makefile: generate doc versions via GIT-VERSION-GEN
The documentation we generate embeds information for the exact Git
version used as well as the date of the commit. This information is
injected by injecting attributes into the build process via command line
argument.

Refactor the logic so that we write the information into "asciidoc.conf"
and "asciidoctor-extensions.rb" via `GIT-VERSION-GEN` for AsciiDoc and
AsciiDoctor, respectively.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-07 07:52:09 +09:00
Junio C Hamano 2b9b229cb4 Merge branch 'es/doc-platform-support-policy'
A policy document that describes platform support levels and
expectation on platform stakeholders has been introduced.

* es/doc-platform-support-policy:
  Documentation: add platform support policy
2024-08-15 13:22:13 -07:00
Emily Shaffer d53db106e0 Documentation: add platform support policy
Supporting many platforms is only possible when we have the right tools to
ensure that support.

Teach platform maintainers how they can help us to help them, by
explaining what kind of tooling support we would like to have, and what
level of support becomes available as a result. Provide examples so that
platform maintainers can see what we're asking for in practice.

With this policy in place, we can make changes with stronger assurance
that we are not breaking anybody we promised not to. Instead, we can
feel confident that our existing testing and integration practices
protect those who care from breakage.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-02 16:27:15 -07:00
Junio C Hamano 6fcd72d5ad Merge branch 'js/doc-markup-updates-fix'
Work around asciidoctor's css that renders `monospace` material
in the SYNOPSIS section of manual pages as block elements.

* js/doc-markup-updates-fix:
  Doc: fix Asciidoctor css workaround
  asciidoctor: fix `synopsis` rendering
2024-07-23 16:54:34 -07:00
Junio C Hamano d44ce6ddd5 Doc: fix Asciidoctor css workaround
The previous step introduced docinfo.html to be used to tweak the
CSS used by the asciidoctor, that by default renders <code> inside
<pre> as a block element, breaking the SYNOPSIS section of a few
pages that adopted a new convention we use since Git 2.45.

But in this project, HTML files are all generated.  We do not force
any human to write HTML by hand, which is an unusual and cruel
punishment.  "*.html" is in the .gitignore file, and "make clean"
removes them.  Having a tracked .html file makes "make clean" make
the tree dirty by removing the tracked docinfo.html file.

Let's do an obvious, minimum and stupid workaround to generate that
file at runtime instead.  The mark-up is being rethought in a major
way for the next development cycle, and the CSS workaround we added
in the previous step may have to adjusted, possibly in a large way,
anyway.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-07-23 11:02:52 -07:00
Johannes Schindelin 8bfc3e47a7 asciidoctor: fix `synopsis` rendering
Since 76880f0510 (doc: git-clone: apply new documentation formatting
guidelines, 2024-03-29), the synopsis of `git clone`'s manual page is
rendered differently than before; Its parent commit did the same for
`git init`.

The result looks quite nice. When rendered with AsciiDoc, that is. When
rendered using AsciiDoctor and displayed in a graphical web browser such
as Firefox, Chrome, Edge, etc, the result is quite unpleasant to my eye,
reading something like this:

	SYNOPSIS

	 git clone
	  [
	 --template=
	 <template-directory>]
		  [
	 -l
	 ] [
	 -s
	 ] [
	 --no-hardlinks
	 ] [
	 -q
	 ] [
	[... continuing like this ...]

The reason is that AsciiDoctor's default style sheet contains this (see
https://github.com/asciidoctor/asciidoctor/blob/854923b15533/src/stylesheets/asciidoctor.css#L519-L521
for context):

	pre > code {
	  display: block;
	}

It is this `display: block` that forces the parts that are enclosed in
`<code>` tags (such as the `git clone` or the `--template=` part) to be
rendered on their own line.

Side note: This seems not to affect console web browsers like `lynx` or
`w3m`, most likely because most style sheet directions cannot be
respected in text terminals and therefore they seem to punt on style
sheets altogether.

To fix this, let's apply the method recommended by AsciiDoctor in
https://docs.asciidoctor.org/asciidoctor/latest/html-backend/default-stylesheet/#customize-docinfo
to partially override AsciiDoctor's default style sheet so that the
`<code>` sections of the synopsis are no longer each rendered on their
own, individual lines.

This fixes https://github.com/git-for-windows/git/issues/5063.

Even on the Git home page, where AsciiDoctor's default stylesheet is
_not_ used, this change resulted in some unpleasant rendering where not
only the font is changed for the `<code>` sections of the synopsis, but
padding and a different background color make the visual impression
quite uneven. This has been addressed in the meantime, via
https://github.com/git/git-scm.com/commit/a492d0565512.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-07-22 14:13:44 -07:00
Junio C Hamano ffa47b75cf Merge branch 'tb/pseudo-merge-reachability-bitmap'
The pseudo-merge reachability bitmap to help more efficient storage
of the reachability bitmap in a repository with too many refs has
been added.

* tb/pseudo-merge-reachability-bitmap: (26 commits)
  pack-bitmap.c: ensure pseudo-merge offset reads are bounded
  Documentation/technical/bitmap-format.txt: add missing position table
  t/perf: implement performance tests for pseudo-merge bitmaps
  pseudo-merge: implement support for finding existing merges
  ewah: `bitmap_equals_ewah()`
  pack-bitmap: extra trace2 information
  pack-bitmap.c: use pseudo-merges during traversal
  t/test-lib-functions.sh: support `--notick` in `test_commit_bulk()`
  pack-bitmap: implement test helpers for pseudo-merge
  ewah: implement `ewah_bitmap_popcount()`
  pseudo-merge: implement support for reading pseudo-merge commits
  pack-bitmap.c: read pseudo-merge extension
  pseudo-merge: scaffolding for reads
  pack-bitmap: extract `read_bitmap()` function
  pack-bitmap-write.c: write pseudo-merge table
  pseudo-merge: implement support for selecting pseudo-merge commits
  config: introduce `git_config_double()`
  pack-bitmap: make `bitmap_writer_push_bitmapped_commit()` public
  pack-bitmap: implement `bitmap_writer_has_bitmapped_object_id()`
  pack-bitmap-write: support storing pseudo-merge commits
  ...
2024-06-24 16:39:13 -07:00
Patrick Steinhardt 2dd100c513 Makefile: extract script to lint missing/extraneous manpages
The "check-docs" target of our top-level Makefile fulfills two different
roles. For one it runs the "lint-docs" target of the "Documentation/"
Makefile. And second it performs some checks of whether there are any
manpages that are missing or extraneous via some inline scripts.

The second set of checks feels quite misplaced in the top-level Makefile
as it would fit in much better with our "lint-docs" target. Back when
the checks were introduced in 8c989ec528 (Makefile: $(MAKE) check-docs,
2006-04-13), that target did not yet exist though.

Furthermore, the script makes use of several Makefile variables which
are defined in the top-level Makefile, which makes it hard to access
their contents from elsewhere. There is a trick though that we already
use in "check-builtins.sh" to gain access: we can create an ad-hoc
Makefile that has an extra target to print those variables.

Pull out the script into a separate "lint-manpages.sh" script by using
that trick. Wire up that script via the "lint-docs" target. For one,
normal shell scripts are way easier to reason about than those which are
embedded in a Makefile. Second, it allows one to easily execute the
script standalone without any of the other checks.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-06-06 08:20:50 -07:00
Taylor Blau 0074cc2994 Documentation/gitpacking.txt: initial commit
Introduce a new manual page, gitpacking(7) to collect useful information
about advanced packing concepts in Git.

In future commits in this series, this manual page will expand to
describe the new pseudo-merge bitmaps feature, as well as include
examples, relevant configuration bits, use-cases, and so on.

Outside of this series, this manual page may absorb similar pieces from
other parts of Git's documentation about packing.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-24 11:40:41 -07:00
Josh Steadmon c82df70818 doc: describe the project's decision-making process
The Git project currently operates according to an informal
consensus-building process, which is currently described in the
SubmittingPatches document. However, that focuses on small/medium-scale
patch series. For larger-scale decisions, the process is not as well
described. Document what to expect so that we have something concrete to
help inform newcomers to the project.

This document explicitly does not aim to impose a formal process to
decision-making, nor to change pre-existing norms. Its only aim is to
describe how the project currently operates today.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-05-17 13:53:04 -07:00
Josh Steadmon 581790eeee unit tests: add a project plan document
In our current testing environment, we spend a significant amount of
effort crafting end-to-end tests for error conditions that could easily
be captured by unit tests (or we simply forgo some hard-to-setup and
rare error conditions). Describe what we hope to accomplish by
implementing unit tests, and explain some open questions and milestones.
Discuss desired features for test frameworks/harnesses, and provide a
comparison of several different frameworks. Finally, document our
rationale for implementing a custom framework.

Co-authored-by: Calvin Wan <calvinwan@google.com>
Signed-off-by: Calvin Wan <calvinwan@google.com>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-11-10 08:15:25 +09:00
Felipe Contreras 28fde3a1f4 doc: set actual revdate for manpages
manpages expect the date of the last revision, if that is not found
DocBook Stylesheets go through a series of hacks to generate one with
the format `%d/%d/%Y` which is not ideal.

In addition to this format not being standard, different tools generate
dates with different formats.

There's no need for any confusion if we specify the revision date, so
let's do so.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-14 10:37:41 -07:00
Junio C Hamano df113b5560 Merge branch 'fc/doc-stop-using-manversion' into fc/doc-use-datestamp-in-commit
* fc/doc-stop-using-manversion:
  doc: simplify man version
2023-04-14 10:33:32 -07:00
Felipe Contreras 9a09ed3229 doc: simplify man version
The hacks to add version information to the man pages comes from 2007
7ef195ba3e (Documentation: Add version information to man pages,
2007-03-25). In that code we passed three fields to DocBook Stylesheets:
`source`, `version`, and `manual`, however, all the stylesheets do is
join the strings `source` and `version` [1].

Their own documentation explains that in pracice the source is just a
combination of two fields [2]:

  In practice, there are many pages that simply have a version number in
  the "source" field.

Splitting that information might have seemed more proper in 2007, but it
not achieve anything in practice.

Asciidoctor had support for this information in their manpage backend
since day 1: v1.5.3 (2015), but it didn't include the version. In the
docbook5 backend they did in v1.5.7 (2018), but again: no version.

There is no need for us to demand that that they add support for the
version field when in reality all that is going to happen is that both
fields are going to be joined.

Let's do that ourselves so we can forget about all our hacks for this
and so it works for both asciidoc.py, and docbook5 and manpage backends
of asciidoctor.

[1] https://github.com/docbook/xslt10-stylesheets/blob/master/xsl/common/refentry.xsl#L545
[2] https://docbook.sourceforge.net/release/xsl/current/doc/common/template.get.refentry.source.html

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-10 08:39:26 -07:00
Felipe Contreras 092df21dfc doc: remove manpage-base-url workaround
Commit 50d9bbba92 (Documentation: Avoid use of xmlto --stringparam,
2009-12-04) introduced manpage-base-url.xsl because ancient versions of
xmlto did not have --stringparam.

However, that was more than ten years ago, no need for that complexity
anymore, we can just use --stringparam.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: Todd Zullinger <tmz@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-05 14:18:53 -07:00
Felipe Contreras ee6ad78260 doc: remove GNU troff workaround
In 2007 the docbook project made the mistake of converting ' to \' for
man pages [1]. It's a problem because groff interprets \' as acute
accent which is rendered as ' in ASCII, but as ´ in utf-8.

This started a cascade of bug reports in git [2], debian [3], Arch Linux
[4], docbook itself [5], and probably many others.

A solution was to use the correct groff character: \(aq, which is always
rendered as ', but the problem is that such character doesn't work in
other troff programs.

A portable solution required the use of a conditional character that is
\(aq in groff, but ' in all others:

  .ie \n(.g .ds Aq \(aq
  .el .ds Aq '

The proper solution took time to be implemented in docbook, but in 2010
they did it [6]. So the docbook man page stylesheets were broken from
1.73 to 1.76.

Unfortunately by that point many workarounds already existed. In the
case of git, GNU_ROFF was introduced, and in the case of Arch Linux
a mapping from \' to ' was added to groff's man.local. Other
distributions might have done the same, or similar workarounds.

Since 2010 there is no need for this workaround, which is fixed
elsewhere, not just in docbook, but other layers as well.

Let's remove it.

[1] ea2a0bac56
[2] https://lore.kernel.org/git/20091012102926.GA3937@debian.b2j/
[3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=507673#65
[4] https://bugs.archlinux.org/task/9643
[5] https://sourceforge.net/p/docbook/bugs/1022/
[6] fb55343426

Inspired-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-21 13:16:46 -07:00
Junio C Hamano 4615d3e264 Merge branch 'ps/gnumake-4.4-fix'
* ps/gnumake-4.4-fix:
  Makefile: avoid multiple patterns when recipes generate one file
2022-11-30 10:57:19 +09:00
Paul Smith 9f95c7aefa Makefile: avoid multiple patterns when recipes generate one file
A GNU make pattern rule with multiple targets has always meant that
a single invocation of the recipe will build all the targets.
However in older versions of GNU make a recipe that did not really
build all the targets would be tolerated.

Starting with GNU make 4.4 this behavior is deprecated and pattern
rules are expected to generate files to match all the patterns.
If not all targets are created then GNU make will not consider any
target up to date and will re-run the recipe when it is run again.

Modify Documentation/Makefile to split the man page-creating pattern
rule into a separate pattern rule for each pattern.

Reported-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Paul Smith <psmith@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-11-28 10:18:55 +09:00
Junio C Hamano 3882a0d3ad Documentation: add lint-fsck-msgids
During the initial development of the fsck-msgids.txt feature, it
has become apparent that it is very much error prone to make sure
the description in the documentation file are sorted and correctly
match what is in the fsck.h header file.

Add a quick-and-dirty Perl script and doc-lint target to sanity
check that the fsck-msgids.txt is consistent with the error type
list in the fsck.h header file.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-10-25 15:44:19 -07:00
Junio C Hamano ac45db1e75 Merge branch 'vd/doc-reviewing-guidelines'
Just like we have coding guidelines, we now have guidelines for
reviewers.

* vd/doc-reviewing-guidelines:
  Documentation: add ReviewingGuidelines
2022-09-21 15:27:02 -07:00
Victoria Dye e01b851923 Documentation: add ReviewingGuidelines
Add a reviewing guidelines document including advice and common terminology
used in Git mailing list reviews. The document is included in the
'TECH_DOCS' list in order to include it in Git's published documentation.

Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Helped-by: Derrick Stolee <derrickstolee@github.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-09-19 14:36:08 -07:00
Junio C Hamano 42bf77c7d0 Merge branch 'vd/scalar-to-main'
Hoist the remainder of "scalar" out of contrib/ to the main part of
the codebase.

* vd/scalar-to-main:
  Documentation/technical: include Scalar technical doc
  t/perf: add 'GIT_PERF_USE_SCALAR' run option
  t/perf: add Scalar performance tests
  scalar-clone: add test coverage
  scalar: add to 'git help -a' command list
  scalar: implement the `help` subcommand
  git help: special-case `scalar`
  scalar: include in standard Git build & installation
  scalar: fix command documentation section header
2022-09-19 14:35:25 -07:00
Junio C Hamano 7a54d74045 Merge branch 'ab/dedup-config-and-command-docs'
Share the text used to explain configuration variables used by "git
<subcmd>" in "git help <subcmd>" with the text from "git help config".

* ab/dedup-config-and-command-docs:
  docs: add CONFIGURATION sections that fuzzy map to built-ins
  docs: add CONFIGURATION sections that map to a built-in
  log docs: de-duplicate configuration sections
  difftool docs: de-duplicate configuration sections
  notes docs: de-duplicate and combine configuration sections
  apply docs: de-duplicate configuration sections
  send-email docs: de-duplicate configuration sections
  grep docs: de-duplicate configuration sections
  docs: add and use include template for config/* includes
2022-09-14 12:56:40 -07:00
Ævar Arnfjörð Bjarmason 18d89fe25c docs: add and use include template for config/* includes
In b6a8d09f6d (gc docs: include the "gc.*" section from "config" in
"gc", 2019-04-07) the "git gc" documentation was made to include the
config/gc.txt in its "CONFIGURATION" section. We do that in several
other places, but "git gc" was the only one with a blurb above the
include to orient the reader.

We don't want readers to carefully scrutinize "git-config(1)" and
"git-gc(1)" looking for discrepancies, instead we should tell them
that the latter includes a part of the former.

This change formalizes that wording in two new templates to be
included, one for the "git gc" case where the entire section is
included from "git-config(1)", and another for when the inclusion of
"git-config(1)" follows discussion unique to that documentation. In
order to use that re-arrange the order of those being discussed in the
"git-merge(1)" documentation.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-09-07 09:46:05 -07:00
Victoria Dye 9eb7a73158 Documentation/technical: include Scalar technical doc
Include 'Documentation/technical/scalar.txt' alongside the other HTML
technical docs when installing them.

Now that the document is intended as a widely-accessible reference, remove
the internal work-in-progress roadmap from the document. Those details
should no longer be needed to guide Scalar's development and, if they were
left, they could fall out-of-date and be misleading to readers.

Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-09-02 10:02:56 -07:00
Victoria Dye 7b5c93c6c6 scalar: include in standard Git build & installation
Move 'scalar' out of 'contrib/' and into the root of the Git tree. The goal
of this change is to build 'scalar' as part of the standard Git build &
install processes.

This patch includes both the physical move of Scalar's files out of
'contrib/' ('scalar.c', 'scalar.txt', and 't9xxx-scalar.sh'), and the
changes to the build definitions in 'Makefile' and 'CMakelists.txt' to
accommodate the new program.

At a high level, Scalar is built so that:
- there is a 'scalar-objs' target (similar to those created in 029bac01a8
  (Makefile: add {program,xdiff,test,git,fuzz}-objs & objects targets,
  2021-02-23)) for debugging purposes.
- it appears in the root of the install directory (rather than the
  gitexecdir).
- it is included in the 'bin-wrappers/' directory for use in tests.
- it receives a platform-specific executable suffix (e.g., '.exe'), if
  applicable.
- 'scalar.txt' is installed as 'man1' documentation.
- the 'clean' target removes the 'scalar' executable.

Additionally, update the root level '.gitignore' file to ignore the Scalar
executable.

Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-09-02 10:02:55 -07:00
Junio C Hamano 0d133a3dcf Merge branch 'ds/bundle-uri-more'
The "bundle URI" design gets documented.

* ds/bundle-uri-more:
  bundle-uri: add example bundle organization
  docs: document bundle URI standard
2022-08-18 13:07:04 -07:00
Derrick Stolee 2da14fad8f docs: document bundle URI standard
Introduce the idea of bundle URIs to the Git codebase through an
aspirational design document. This document includes the full design
intended to include the feature in its fully-implemented form. This will
take several steps as detailed in the Implementation Plan section.

By committing this document now, it can be used to motivate changes
necessary to reach these final goals. The design can still be altered as
new information is discovered.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-10 14:03:11 -07:00
Ævar Arnfjörð Bjarmason 1e2320161d docs: move http-protocol docs to man section 5
Continue the move of existing Documentation/technical/* protocol and
file-format documentation into our main documentation space by moving
the http-protocol.txt documentation over. I'm renaming it to
"protocol-http" to be consistent with other things in the new
gitformat-protocol-* namespace.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:24 -07:00
Ævar Arnfjörð Bjarmason 6b6029dd1d docs: move cruft pack docs to gitformat-pack
Integrate the cruft packs documentation initially added in
3d89a8c118 (Documentation/technical: add cruft-packs.txt, 2022-05-20)
to the newly created "gitformat-pack" documentation.

Like the "bitmap-format" added before it in
0d4455a3ab (documentation: add documentation for the bitmap format,
2013-11-14) the "cruft-packs" were documented in their own file.

As the diff move detection will show there is no change to
"Documentation/technical/cruft-packs.txt" here except to move it, and
to "indent" the existing sections by adding an extra "=" to them.

We could similarly convert the "bitmap-format.txt", but let's leave it
for now due to a conflict with the in-flight ac/bitmap-lookup-table
series.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:24 -07:00
Ævar Arnfjörð Bjarmason 977c47b46d docs: move pack format docs to man section 5
Continue the move of existing Documentation/technical/* protocol and
file-format documentation into our main documentation space by moving
the various documentation pertaining to the *.pack format and related
files, and updating things that refer to it to link to the new
location.

By moving these we can properly link from the newly created
gitformat-commit-graph to a gitformat-chunk-format page.

Integrating "Documentation/technical/bitmap-format.txt" and
"Documentation/technical/cruft-packs.txt" might logically be part of
this change, but as those cover parts of the wider "pack
format" (including associated files) that's documented outside of
"Documentation/technical/pack-format.txt" let's leave those for now,
subsequent commit(s) will address those.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:24 -07:00
Ævar Arnfjörð Bjarmason 20516890dc docs: move signature docs to man section 5
Continue the move of existing Documentation/technical/* protocol and
file-format documentation into our main documentation space by moving
the signature format documentation.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:24 -07:00
Ævar Arnfjörð Bjarmason 00d3e8d7dd docs: move index format docs to man section 5
Continue the move of existing Documentation/technical/* protocol and
file-format documentation into our main documentation space by moving
the index format documentation.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:23 -07:00
Ævar Arnfjörð Bjarmason 5db921054e docs: move protocol-related docs to man section 5
Continue the move of existing Documentation/technical/* protocol and
file-format documentation into our main documentation space. By moving
the things that discuss the protocol we can properly link from
e.g. lsrefs.unborn and protocol.version documentation to a manpage we
build by default.

So far we have been using the "gitformat-" prefix for the
documentation we've been moving over from Documentation/technical/*,
but for protocol documentation let's use "gitprotocol-*".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:23 -07:00
Ævar Arnfjörð Bjarmason 8cbace93d2 docs: move commit-graph format docs to man section 5
Continue the move of existing Documentation/technical/* protocol and
file-format documentation into our main documentation space.

By moving the documentation for the commit-graph format into man
section 5 and the new "developerinterfaces" category. This change is
split from subsequent commits due to the relatively large amount of
ASCIIDOC formatting changes that are required.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:23 -07:00
Ævar Arnfjörð Bjarmason 844739ba27 git docs: add a category for file formats, protocols and interfaces
Create a new "File formats, protocols and other developer interfaces"
section in the main "git help git" manual page and start moving the
documentation that now lives in "Documentation/technical/*.git" over
to it. This complements the newly added and adjacent "Repository,
command and file interfaces" section.

This makes the technical documentation more accessible and
discoverable. Before this we wouldn't install it by default, and had
no ability to build man page versions of them. The links to them from
our existing documentation link to the generated HTML version of these
docs.

So let's start moving those over, starting with just the
"bundle-format.txt" documentation added in 7378ec90e1 (doc: describe
Git bundle format, 2020-02-07). We'll now have a new
gitformat-bundle(5) man page. Subsequent commits will move more git
internal format documentation over.

Unfortunately the syntax of the current Documentation/technical/*.txt
is not the same (when it comes to section headings etc.) as our
Documentation/*.txt documentation, so change the relevant bits of
syntax as we're moving this over.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:23 -07:00
Ævar Arnfjörð Bjarmason d976c5100f git docs: add a category for user-facing file, repo and command UX
Create a new "Repository, command and file interfaces" section in the
main "git help git" manual page. Move things that belong under this
new criteria from the generic "Guides" section.

The "Guides" section was added in f442f28a81 (git.txt: add list of
guides, 2020-08-05). It makes sense to have e.g. "giteveryday(7)" and
"gitfaq(7)" listed under "Guides".

But placing e.g. "gitignore(5)" in it is stretching the meaning of
what a "guide" is, ideally that section should list things similar to
"giteveryday(7)" and "gitcore-tutorial(7)".

An alternate name that was considered for this new section was "User
formats", for consistency with the nomenclature used for man section 5
in general. My man(1) lists it as "File formats and conventions,
e.g. /etc/passwd".

So calling this "git help --formats" or "git help --user-formats"
would make sense for e.g. gitignore(5), but would be stretching it
somewhat for githooks(5), and would seem really suspect for the likes
of gitcli(7).

Let's instead pick a name that's closer to the generic term "User
interface", which is really what this documentation discusses: General
user-interface documentation that doesn't obviously belong elsewhere.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-08-04 14:12:23 -07:00
Junio C Hamano 8f6b482d24 Merge branch 'ac/bitmap-format-doc' into maint
Adjust technical/bitmap-format to be formatted by AsciiDoc, and
add some missing information to the documentation.
source: <pull.1246.v4.git.1655355834.gitgitgadget@gmail.com>

* ac/bitmap-format-doc:
  bitmap-format.txt: add information for trailing checksum
  bitmap-format.txt: fix some formatting issues
  bitmap-format.txt: feed the file to asciidoc to generate html
2022-07-27 13:00:31 -07:00
Junio C Hamano 5dbbdaac79 Merge branch 'ac/bitmap-format-doc'
Adjust technical/bitmap-format to be formatted by AsciiDoc, and
add some missing information to the documentation.

* ac/bitmap-format-doc:
  bitmap-format.txt: add information for trailing checksum
  bitmap-format.txt: fix some formatting issues
  bitmap-format.txt: feed the file to asciidoc to generate html
2022-07-11 15:38:50 -07:00
Abhradeep Chakraborty accf237ab5 bitmap-format.txt: feed the file to asciidoc to generate html
Documentation/Makefile does not include bitmap-format.txt to generate
a html page using asciidoc.

Teach Documentation/Makefile to also generate a html page for
Documentation/technical/bitmap-format.txt file.

Signed-off-by: Abhradeep Chakraborty <chakrabortyabhradeep79@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-06-16 11:48:49 -07:00
Junio C Hamano a50036da1a Merge branch 'tb/cruft-packs'
A mechanism to pack unreachable objects into a "cruft pack",
instead of ejecting them into loose form to be reclaimed later, has
been introduced.

* tb/cruft-packs:
  sha1-file.c: don't freshen cruft packs
  builtin/gc.c: conditionally avoid pruning objects via loose
  builtin/repack.c: add cruft packs to MIDX during geometric repack
  builtin/repack.c: use named flags for existing_packs
  builtin/repack.c: allow configuring cruft pack generation
  builtin/repack.c: support generating a cruft pack
  builtin/pack-objects.c: --cruft with expiration
  reachable: report precise timestamps from objects in cruft packs
  reachable: add options to add_unseen_recent_objects_to_traversal
  builtin/pack-objects.c: --cruft without expiration
  builtin/pack-objects.c: return from create_object_entry()
  t/helper: add 'pack-mtimes' test-tool
  pack-mtimes: support writing pack .mtimes files
  chunk-format.h: extract oid_version()
  pack-write: pass 'struct packing_data' to 'stage_tmp_packfiles'
  pack-mtimes: support reading .mtimes files
  Documentation/technical: add cruft-packs.txt
2022-06-03 14:30:37 -07:00
Junio C Hamano 7ec4a9e74f Merge branch 'cg/tools-for-git-doc'
A new doc that lists tips for tools to work with Git's codebase.

* cg/tools-for-git-doc:
  Documentation/ToolsForGit.txt: Tools for developing Git
2022-05-26 14:51:31 -07:00
Taylor Blau 3d89a8c118 Documentation/technical: add cruft-packs.txt
Create a technical document to explain cruft packs. It contains a brief
overview of the problem, some background, details on the implementation,
and a couple of alternative approaches not considered here.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-05-20 22:31:21 -07:00
Junio C Hamano 123dfdff0d Merge branch 'fr/vimdiff-layout'
Reimplement "vimdiff[123]" mergetool drivers with a more generic
layout mechanism.

* fr/vimdiff-layout:
  mergetools: add description to all diff/merge tools
  vimdiff: add tool documentation
  vimdiff: integrate layout tests in the unit tests framework ('t' folder)
  vimdiff: new implementation with layout support
2022-05-10 17:41:11 -07:00
COGONI Guillaume 7a06a854ee Documentation/ToolsForGit.txt: Tools for developing Git
This document gathers tips, scripts and configuration file to help
people working on Git’s codebase use their favorite tools while
following Git’s coding style.

Move the part about Emacs configuration from CodingGuidelines to
ToolsForGit.txt because it's the purpose of the new file centralize the
information about tools.

But, add a mention to Documentation/ToolsForGit.txt in CodingGuidelines
because there is also information about the coding style in it.

Helped-by: Matthieu Moy <Matthieu.Moy@univ-lyon1.fr>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: COGONI Guillaume <cogoni.guillaume@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-04-21 09:50:25 -07:00
Ævar Arnfjörð Bjarmason 8af0699b7a Documentation/Makefile: fix "make info" regression in dad9cd7d51
Fix a regression in my dad9cd7d51 (Makefile: move ".SUFFIXES" rule to
shared.mak, 2022-03-03). As explained in the GNU make documentation
for the $* variable, available at:

	info make --index-search='$*'

This rule relied on ".texi" being in the default list of suffixes, as
seen at:

	make -f/dev/null -p | grep -v -e ^# -e ^$|grep -F .SUFFIXES

The documentation explains what was going on here:

	In an explicit rule, there is no stem; so '$*' cannot be determined
	in that way.  Instead, if the target name ends with a recognized
	suffix (*note Old-Fashioned Suffix Rules: Suffix Rules.), '$*' is
	set to the target name minus the suffix.  For example, if the
	target name is 'foo.c', then '$*' is set to 'foo', since '.c' is a
	suffix.  GNU 'make' does this bizarre thing only for compatibility
	with other implementations of 'make'.  You should generally avoid
	using '$*' except in implicit rules or static pattern rules.

	If the target name in an explicit rule does not end with a
	recognized suffix, '$*' is set to the empty string for that rule.

I.e. this rule added back in 5cefc33bff (Documentation: add
gitman.info target, 2007-12-10) was resolving gitman.texi from
gitman.info. We can instead just use the more obvious $< variable
referring to the prerequisite.

This was the only use of $* in our Makefiles in an explicit rule, the
three remaining ones are all implicit rules, and therefore didn't
depend on the ".SUFFIXES" list.

Reported-by: Adam Dinwoodie <adam@dinwoodie.org>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Tested-by: Adam Dinwoodie <adam@dinwoodie.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-04-06 09:43:48 -07:00