feat: update git to 1:2.53.0-1

.clang-format

@@ -149,7 +149,7 @@ SpaceBeforeCaseColon: false
 #     f();
 #   }
 # }
-SpaceBeforeParens: ControlStatements
+SpaceBeforeParens: ControlStatementsExceptControlMacros
 
 # Don't insert spaces inside empty '()'
 SpaceInEmptyParentheses: false

.gitattributes

@@ -1,13 +1,13 @@
-* whitespace=!indent,trail,space
-*.[ch] whitespace=indent,trail,space diff=cpp
-*.sh whitespace=indent,trail,space text eol=lf
+* whitespace=trail,space
+*.[ch] whitespace=indent,trail,space,incomplete diff=cpp
+*.sh whitespace=indent,trail,space,incomplete text eol=lf
 *.perl text eol=lf diff=perl
 *.pl text eof=lf diff=perl
 *.pm text eol=lf diff=perl
 *.py text eol=lf diff=python
 *.bat text eol=crlf
 CODE_OF_CONDUCT.md -whitespace
-/Documentation/**/*.adoc text eol=lf
+/Documentation/**/*.adoc text eol=lf whitespace=trail,space,incomplete
 /command-list.txt text eol=lf
 /GIT-VERSION-GEN text eol=lf
 /mergetools/* text eol=lf
@@ -17,3 +17,4 @@ CODE_OF_CONDUCT.md -whitespace
 /Documentation/gitk.adoc conflict-marker-size=32
 /Documentation/user-manual.adoc conflict-marker-size=32
 /t/t????-*.sh conflict-marker-size=32
+/t/unit-tests/clar/test/expected/* whitespace=-blank-at-eof

.gitignore

@@ -1,4 +1,6 @@
 /fuzz_corpora
+/target/
+/Cargo.lock
 /GIT-BUILD-DIR
 /GIT-BUILD-OPTIONS
 /GIT-CFLAGS
@@ -87,6 +89,7 @@
 /git-init-db
 /git-interpret-trailers
 /git-instaweb
+/git-last-modified
 /git-log
 /git-ls-files
 /git-ls-remote
@@ -139,6 +142,7 @@
 /git-repack
 /git-replace
 /git-replay
+/git-repo
 /git-request-pull
 /git-rerere
 /git-reset

.gitlab-ci.yml

@@ -45,6 +45,8 @@ test:linux:
       - jobname: linux-breaking-changes
         image: ubuntu:20.04
         CC: gcc
+      - jobname: fedora-breaking-changes-meson
+        image: fedora:latest
       - jobname: linux-TEST-vars
         image: ubuntu:20.04
         CC: gcc
@@ -58,8 +60,6 @@ test:linux:
       - jobname: linux-asan-ubsan
         image: ubuntu:rolling
         CC: clang
-      - jobname: pedantic
-        image: fedora:latest
       - jobname: linux-musl-meson
         image: alpine:latest
       - jobname: linux32
@@ -70,6 +70,8 @@ test:linux:
   artifacts:
     paths:
       - t/failed-test-artifacts
+    reports:
+      junit: build/meson-logs/testlog.junit.xml
     when: on_failure
 
 test:osx:
@@ -110,15 +112,24 @@ test:osx:
   artifacts:
     paths:
       - t/failed-test-artifacts
+    reports:
+      junit: build/meson-logs/testlog.junit.xml
     when: on_failure
 
+.windows_before_script: &windows_before_script
+  # Disabling realtime monitoring fails on some of the runners, but it
+  # significantly speeds up test execution in the case where it works. We thus
+  # try our luck, but ignore any failures.
+  - Set-MpPreference -DisableRealtimeMonitoring $true; $true
+
 build:mingw64:
   stage: build
   tags:
     - saas-windows-medium-amd64
   variables:
     NO_PERL: 1
   before_script:
+    - *windows_before_script
     - ./ci/install-sdk.ps1 -directory "git-sdk"
   script:
     - git-sdk/usr/bin/bash.exe -l -c 'ci/make-test-artifacts.sh artifacts'
@@ -135,6 +146,7 @@ test:mingw64:
     - job: "build:mingw64"
       artifacts: true
   before_script:
+    - *windows_before_script
     - git-sdk/usr/bin/bash.exe -l -c 'tar xf artifacts/artifacts.tar.gz'
     - New-Item -Path .git/info -ItemType Directory
     - New-Item .git/info/exclude -ItemType File -Value "/git-sdk"
@@ -148,17 +160,10 @@ test:mingw64:
   tags:
     - saas-windows-medium-amd64
   before_script:
-    - choco install -y git meson ninja openssl
+    - *windows_before_script
+    - choco install -y git meson ninja rust-ms
     - Import-Module $env:ChocolateyInstall\helpers\chocolateyProfile.psm1
     - refreshenv
-    # The certificate store for Python on Windows is broken and fails to fetch
-    # certificates, see https://bugs.python.org/issue36011. This seems to
-    # mostly be an issue with how the GitLab image is set up as it is a
-    # non-issue on GitHub Actions. Work around the issue by importing
-    # cetrificates manually.
-    - Invoke-WebRequest https://curl.haxx.se/ca/cacert.pem -OutFile cacert.pem
-    - openssl pkcs12 -export -nokeys -in cacert.pem -out certs.pfx -passout "pass:"
-    - Import-PfxCertificate -CertStoreLocation Cert:\LocalMachine\Root -FilePath certs.pfx
 
 build:msvc-meson:
   extends: .msvc-meson
@@ -180,6 +185,9 @@ test:msvc-meson:
   script:
     - meson test -C build --no-rebuild --print-errorlogs --slice $Env:CI_NODE_INDEX/$Env:CI_NODE_TOTAL
   parallel: 10
+  artifacts:
+    reports:
+      junit: build/meson-logs/testlog.junit.xml
 
 test:fuzz-smoke-tests:
   image: ubuntu:latest
@@ -204,6 +212,17 @@ static-analysis:
     - ./ci/run-static-analysis.sh
     - ./ci/check-directional-formatting.bash
 
+rust-analysis:
+  image: ubuntu:rolling
+  stage: analyze
+  needs: [ ]
+  variables:
+    jobname: RustAnalysis
+  before_script:
+    - ./ci/install-dependencies.sh
+  script:
+    - ./ci/run-rust-checks.sh
+
 check-whitespace:
   image: ubuntu:latest
   stage: analyze

.mailmap

@@ -81,6 +81,8 @@ Fredrik Kuivinen <frekui@gmail.com> <freku045@student.liu.se>
 Frédéric Heitzmann <frederic.heitzmann@gmail.com>
 Garry Dolley <gdolley@ucla.edu> <gdolley@arpnetworks.com>
 Glen Choo <glencbz@gmail.com> <chooglen@google.com>
+Greg Hurrell <greg@hurrell.net> <greg.hurrell@datadoghq.com>
+Greg Hurrell <greg@hurrell.net> <win@wincent.com>
 Greg Price <price@mit.edu> <price@MIT.EDU>
 Greg Price <price@mit.edu> <price@ksplice.com>
 Heiko Voigt <hvoigt@hvoigt.net> <git-list@hvoigt.net>
@@ -105,6 +107,9 @@ Jason Riedy <ejr@eecs.berkeley.edu> <ejr@cs.berkeley.edu>
 Jay Soffian <jaysoffian@gmail.com> <jaysoffian+git@gmail.com>
 Jean-Noël Avila <jn.avila@free.fr> Jean-Noel Avila
 Jean-Noël Avila <jn.avila@free.fr> Jean-Noël AVILA
+Jean-Noël Avila <jn.avila@free.fr> Jean-Noel Avila <jean-noel.avila@scantech.fr>
+Jean-Noël Avila <jn.avila@free.fr> Jean-Noël AVILA <avila.jn@gmail.com>
+Jean-Noël Avila <jn.avila@free.fr> Jean-Noël Avila via GitGitGadget <gitgitgadget@gmail.com>
 Jeff King <peff@peff.net> <peff@github.com>
 Jeff Muizelaar <jmuizelaar@mozilla.com> <jeff@infidigm.net>
 Jens Axboe <axboe@kernel.dk> <axboe@suse.de>
@@ -124,6 +129,7 @@ Jon Loeliger <jdl@jdl.com> <jdl@freescale.org>
 Jon Seymour <jon.seymour@gmail.com> <jon@blackcubes.dyndns.org>
 Jonathan Nieder <jrnieder@gmail.com> <jrnieder@uchicago.edu>
 Jonathan del Strother <jon.delStrother@bestbefore.tv> <maillist@steelskies.com>
+Jonathan Tan <jonathantanmy@fastmail.com> <jonathantanmy@google.com>
 Josh Triplett <josh@joshtriplett.org> <josh@freedesktop.org>
 Josh Triplett <josh@joshtriplett.org> <josht@us.ibm.com>
 Julian Phillips <julian@quantumfyre.co.uk> <jp3@quantumfyre.co.uk>
@@ -137,8 +143,8 @@ Junio C Hamano <gitster@pobox.com> <junkio@twinsun.com>
 Kaartic Sivaraam <kaartic.sivaraam@gmail.com> <kaarticsivaraam91196@gmail.com>
 Karl Wiberg <kha@treskal.com> Karl  Hasselström
 Karl Wiberg <kha@treskal.com> <kha@yoghurt.hemma.treskal.com>
-Karsten Blees <blees@dcon.de> <karsten.blees@dcon.de>
-Karsten Blees <blees@dcon.de> <karsten.blees@gmail.com>
+Karsten Blees <karsten.blees@gmail.com> <karsten.blees@dcon.de>
+Karsten Blees <karsten.blees@gmail.com> <blees@dcon.de>
 Kay Sievers <kay.sievers@vrfy.org> <kay.sievers@suse.de>
 Kay Sievers <kay.sievers@vrfy.org> <kay@mam.(none)>
 Kazuki Saitoh <ksaitoh560@gmail.com> kazuki saitoh <ksaitoh560@gmail.com>
@@ -223,6 +229,8 @@ Philip Jägenstedt <philip@foolip.org> <philip.jagenstedt@gmail.com>
 Philip Oakley <philipoakley@iee.email> <philipoakley@iee.org> # secondary <philipoakley@dunelm.org.uk>
 Philipp A. Hartmann <pah@qo.cx> <ph@sorgh.de>
 Philippe Bruhat <book@cpan.org>
+Phillip Wood <phillip.wood@dunelm.org.uk> <phillip.wood123@gmail.com>
+Phillip Wood <phillip.wood@dunelm.org.uk> <phillip.wood@talktalk.net>
 Ralf Thielow <ralf.thielow@gmail.com> <ralf.thielow@googlemail.com>
 Ramsay Jones <ramsay@ramsayjones.plus.com> <ramsay@ramsay1.demon.co.uk>
 Ramkumar Ramachandra <r@artagnon.com> <artagnon@gmail.com>

Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "gitcore"
+version = "0.1.0"
+edition = "2018"
+rust-version = "1.49.0"
+
+[lib]
+crate-type = ["staticlib"]
+
+[dependencies]

Documentation/BreakingChanges.adoc

@@ -165,6 +165,57 @@ A prerequisite for this change is that the ecosystem is ready to support the
 "reftable" format. Most importantly, alternative implementations of Git like
 JGit, libgit2 and Gitoxide need to support it.
 
+* In new repositories, the default branch name will be `main`. We have been
+  warning that the default name will change since 675704c74dd (init:
+  provide useful advice about init.defaultBranch, 2020-12-11).  The new name
+  matches the default branch name used in new repositories by many of the
+  big Git forges.
+
+* Git will require Rust as a mandatory part of the build process. While Git
+  already started to adopt Rust in Git 2.49, all parts written in Rust are
+  optional for the time being. This includes:
++
+  ** The Rust wrapper around libgit.a that is part of "contrib/" and which has
+     been introduced in Git 2.49.
+  ** Subsystems that have an alternative implementation in Rust to test
+     interoperability between our C and Rust codebase.
+  ** Newly written features that are not mission critical for a fully functional
+     Git client.
++
+These changes are meant as test balloons to allow distributors of Git to prepare
+for Rust becoming a mandatory part of the build process. There will be multiple
+milestones for the introduction of Rust:
++
+--
+1. Initially, with Git 2.52, support for Rust will be auto-detected by Meson and
+   disabled in our Makefile so that the project can sort out the initial
+   infrastructure.
+2. In Git 2.53, both build systems will default-enable support for Rust.
+   Consequently, builds will break by default if Rust is not available on the
+   build host. The use of Rust can still be explicitly disabled via build
+   flags.
+3. In Git 3.0, the build options will be removed and support for Rust is
+   mandatory.
+--
++
+You can explicitly ask both Meson and our Makefile-based system to enable Rust
+by saying `meson configure -Drust=enabled` and `make WITH_RUST=YesPlease`,
+respectively.
++
+The Git project will declare the last version before Git 3.0 to be a long-term
+support release. This long-term release will receive important bug fixes for at
+least four release cycles and security fixes for six release cycles. The Git
+project will hand over maintainership of the long-term release to distributors
+in case they need to extend the life of that long-term release even further.
+Details of how this long-term release will be handed over to the community will
+be discussed once the Git project decides to stop officially supporting it.
++
+We will evaluate the impact on downstream distributions before making Rust
+mandatory in Git 3.0. If we see that the impact on downstream distributions
+would be significant, we may decide to defer this change to a subsequent minor
+release. This evaluation will also take into account our own experience with
+how painful it is to keep Rust an optional component.
+
 === Removals
 
 * Support for grafting commits has long been superseded by git-replace(1).
@@ -235,10 +286,35 @@ These features will be removed.
   equivalent `git log --raw`.  We have nominated the command for
   removal, have changed the command to refuse to work unless the
   `--i-still-use-this` option is given, and asked the users to report
-  when they do so.  So far there hasn't been a single complaint.
+  when they do so.
 +
 The command will be removed.
 
+* Support for `core.commentString=auto` has been deprecated and will
+  be removed in Git 3.0.
++
+cf. <xmqqa59i45wc.fsf@gitster.g>
+
+* Support for `core.preferSymlinkRefs=true` has been deprecated and will be
+  removed in Git 3.0. Writing symbolic refs as symbolic links will be phased
+  out in favor of using plain files using the textual representation of
+  symbolic refs.
++
+Symbolic references were initially always stored as a symbolic link. This was
+changed in 9b143c6e15 (Teach update-ref about a symbolic ref stored in a
+textfile., 2005-09-25), where a new textual symref format was introduced to
+store those symbolic refs in a plain file. In 9f0bb90d16
+(core.prefersymlinkrefs: use symlinks for .git/HEAD, 2006-05-02), the Git
+project switched the default to use the textual symrefs in favor of symbolic
+links.
++
+The migration away from symbolic links has happened almost 20 years ago by now,
+and there is no known reason why one should prefer them nowadays. Furthermore,
+symbolic links are not supported on some platforms.
++
+Note that only the writing side for such symbolic links is deprecated. Reading
+such symbolic links is still supported for now.
+
 == Superseded features that will not be deprecated
 
 Some features have gained newer replacements that aim to improve the design in

Documentation/CodingGuidelines

@@ -650,6 +650,12 @@ For C programs:
    cases. However, it is recommended to find a more descriptive name wherever
    possible to improve the readability and maintainability of the code.
 
+ - Bit fields should be defined without a space around the colon. E.g.
+
+   unsigned my_field:1;
+   unsigned other_field:1;
+   unsigned field_with_longer_name:1;
+
 For Perl programs:
 
  - Most of the C guidelines above apply.