gn/SPECS/gn.spec

## START: Set by rpmautospec
## (rpmautospec version 0.3.5)
## RPMAUTOSPEC: autorelease, autochangelog
%define autorelease(e:s:pb:n) %{?-p:0.}%{lua:
    release_number = 3;
    base_release_number = tonumber(rpm.expand("%{?-b*}%{!?-b:1}"));
    print(release_number + base_release_number - 1);
}%{?-e:.%{-e*}}%{?-s:.%{-s*}}%{!?-n:%{?dist}}
## END: Set by rpmautospec

# Build HTML docs from markdown using pandoc?
%bcond_without html_docs

Name:           gn
# Upstream uses the number of commits in the git history as the version number.
# See gn --version, which outputs something like “1874 (2b683eff)”. The commit
# position and short commit hash in this string come from “git describe HEAD
# --match initial-commit”; see build/gen.py. This means that a complete git
# checkout is required to establish the version number; the information is not
# in the tarball! This is terribly inconvenient. See
# https://bugs.chromium.org/p/gn/issues/detail?id=3.
#
# As a result, it is necessary to use our custom update-version script,
# supplying the new full commit hash as the sole argument or providing no
# arguments to select the latest commit. This will:
#  1. Clone the git repository from the Internet (a substantial download)
#  2. Run build/gen.py to generate last_commit_position.h, the header with
#     version information, and copy it into the same directory as the script
#  3. Modify the commit and access macros and the Version field in this spec
#     file.
#  4. Download the source tarball (spectool -g)
#  5. Update the sources (fedpkg new-sources %%{commit}.tar.gz)
#  6. Stage all changes in git
#  7. Commit the changes
#
# See https://gn.googlesource.com/gn/+log for the latest changes.
%global commit 5e19d2fb166fbd4f6f32147fbb2f497091a54ad8
%global access 20231220
%global shortcommit %(c='%{commit}'; echo "${c:0:12}")
Version:        2077
Release:        %autorelease -s %{access}git%{shortcommit}
Summary:        Meta-build system that generates build files for Ninja

# The entire source is BSD-3-Clause, except:
#   - src/base/third_party/icu/ is (Unicode AND ICU); see
#     src/base/third_party/icu/LICENSE and also the header comment in
#     src/base/third_party/icu/icu_utf.h.
#
# Note that src/util/test/gn_test.cc, which is licensed Apache-2.0, does not
# contribute to the binary RPMs, only to the gn_unittests executable, which is
# not installed; you may verify this with:
#   gdb -ex 'set pagination off' -ex 'info sources' gn | grep -F gn_test.cc
License:        BSD-3-Clause AND Unicode AND ICU
URL:            https://gn.googlesource.com/gn
Source0:        %{url}/+archive/%{commit}.tar.gz#/gn-%{shortcommit}.tar.gz
# Generated using script update-version:
Source1:        last_commit_position.h
Source2:        update-version

# Stop overriding optimization flags; not sent upstream because this is
# intentional on their part
Patch:          gn-0153d369-no-O3.patch

BuildRequires:  python3-devel
BuildRequires:  ninja-build
BuildRequires:  gcc-c++

# For RPM macros:
BuildRequires:  emacs-common

%if %{with html_docs}
BuildRequires:  pandoc
BuildRequires:  parallel
%endif
BuildRequires:  help2man

Requires:       vim-filesystem
Requires:       python3
Provides:       vim-gn = %{version}-%{release}

Requires:       emacs-filesystem >= %{_emacs_version}
Provides:       emacs-gn = %{version}-%{release}

# src/base/third_party/icu/icu_utf.h:
#
#   This file has the relevant components from ICU copied to handle basic
#   UTF8/16/32 conversions. Components are copied from umachine.h, utf.h,
#   utf8.h, and utf16.h into icu_utf.h.
#
# The forked, bundled ICU components are copied from Chromium. Because of the
# downstream changes (primarily, changing namespaces and symbol prefixes),
# there is no clear path to unbundling.
#
# See src/base/third_party/icu/README.chromium, from which the version number
# is taken.
Provides:       bundled(icu) = 60

%description
GN is a meta-build system that generates build files for Ninja.


%package doc
Summary:        Documentation for GN
BuildArch:      noarch

%description doc
The gn-doc package contains detailed documentation for GN.


%prep
%autosetup -c -n gn-%{commit} -p1

# Use pre-generated last_commit_position.h.
mkdir -p ./out
cp -vp '%{SOURCE1}' ./out

# Copy and rename vim extensions readme for use in the main documentation
# directory.
cp -vp misc/vim/README.md README-vim.md

# Fix shebangs in examples and such.
%py3_shebang_fix .


%build
AR='gcc-ar'; export AR
%set_build_flags
# Treating warnings as errors is too strict for downstream builds.
#
# Both --use-icf and --use-lto add compiler flags that only work with clang++,
# not with g++. We do get LTO on Fedora anyway, since we respect the
# distribution’s build flags.
%{python3} build/gen.py \
    --allow-warnings \
    --no-last-commit-position \
    --no-strip \
    --no-static-libstdc++
ninja -C out -v

%if %{with html_docs}
# There is a script, misc/help_as_html.py, that generates some HTML help, but
# pandoc does a better job and we can cover more Markdown sources.
find . -type f -name '*.md' | parallel -v pandoc -o '{.}.html' '{}'
%endif

help2man \
    --name='%{summary}' \
    --version-string="gn $(./out/gn --version)" \
    --no-info \
    ./out/gn |
  # Clean up a couple of stray binary bytes in the help output
  tr -d '\302\240' |
  # Format the entries within the sections as tagged paragraphs, and italicise
  # [placeholders in square brackets].
  sed -r -e 's/(^[[:alnum:]_]+:)/.TP\n.B \1\n/' \
      -e 's/\[([^]]+)\]/\\fI[\1]\\fR/g' > out/gn.1


%install
install -t '%{buildroot}%{_bindir}' -D -p out/gn

install -d '%{buildroot}%{_datadir}/vim/vimfiles'
cp -vrp misc/vim/* '%{buildroot}%{_datadir}/vim/vimfiles'
find '%{buildroot}%{_datadir}/vim/vimfiles' \
    -type f -name 'README.*' -print -delete
%py_byte_compile %{python3} '%{buildroot}%{_datadir}/vim/vimfiles/gn-format.py'

install -t '%{buildroot}%{_emacs_sitestartdir}' -D -p -m 0644 misc/emacs/*.el

install -t '%{buildroot}%{_mandir}/man1' -D -m 0644 -p out/gn.1


%check
out/gn_unittests

# Verify consistency of the version header with the spec file
grep -E '^#define[[:blank:]]+LAST_COMMIT_POSITION_NUM[[:blank:]]+'\
'%{version}[[:blank:]]*' \
    'out/last_commit_position.h' >/dev/null
grep -E '^#define[[:blank:]]+LAST_COMMIT_POSITION[[:blank:]]+'\
'"%{version} \(%{shortcommit}\)"[[:blank:]]*' \
    'out/last_commit_position.h' >/dev/null


%files
%license LICENSE
%{_bindir}/gn

%{_mandir}/man1/gn.1*

%{_datadir}/vim/vimfiles/gn-format.py
%{_datadir}/vim/vimfiles/autoload/gn.vim
%{_datadir}/vim/vimfiles/ftdetect/gnfiletype.vim
%{_datadir}/vim/vimfiles/ftplugin/gn.vim
%{_datadir}/vim/vimfiles/syntax/gn.vim

%{_emacs_sitestartdir}/gn-mode.el


%files doc
%license LICENSE src/base/third_party/icu/README.chromium
%doc AUTHORS
%doc OWNERS
%doc README*.md
%if %{with html_docs}
%doc README*.html
%endif
%doc docs/
%doc examples/
%doc infra/
%doc tools/


%changelog
* Wed Dec 20 2023 Benjamin A. Beasley <code@musicinmybrain.net> - 2077-3.20231220git5e19d2fb166f
- Enable HTML documentation

* Wed Dec 20 2023 Benjamin A. Beasley <code@musicinmybrain.net> - 2077-2.20231220git5e19d2fb166f
- Allow warnings in the build

* Wed Dec 20 2023 Benjamin A. Beasley <code@musicinmybrain.net> - 2077-1.20231220git5e19d2fb166f
- Update to version 2077

* Wed Dec 20 2023 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-11.20211205gite0afadf7
- Indicate dirs. in files list with trailing slashes

* Wed Dec 20 2023 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-10.20211205gite0afadf7
- Convert License to SPDX

* Wed Dec 20 2023 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-9.20211205gite0afadf7
- Add patch upstream status for gn-0153d369-no-O3.patch

* Sat Jul 01 2023 Arkady L. Shane <ashejn@msvsphere.ru> - 1953-7.20211205gite0afadf7
- Rebuilt for MSVSphere 9.2

* Sun May 01 2022 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-7.20211205gite0afadf7
- Improve handling of bundled ICU components

* Sun May 01 2022 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-6.20211205gite0afadf7
- Stop numbering patches

* Sun May 01 2022 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-5.20211205gite0afadf7
- BR emacs-common for RPM macros

* Sun May 01 2022 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-4.20211205gite0afadf7
- Drop even the emacs-nox BR

* Sun May 01 2022 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-3.20211205gite0afadf7
- BR emacs-nox instead of full emacs

* Mon Dec 06 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-2.20211205gite0afadf7
- Disable HTML docs in EPEL9 for now

* Sun Dec 05 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1953-1.20211205gite0afadf7
- Update to version 1953

* Fri Dec 03 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1951-2.20211128gitb7903130
- Drop BR on python3, redundant with python3-devel

* Sun Nov 28 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1951-1.20211128gitb7903130
- Update to version 1951

* Fri Nov 19 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1945-1.20211119git4aa9bdfa
- Update to version 1945

* Tue Nov 16 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1944-1.20211116git18512455
- Update to version 1944

* Sun Nov 07 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1943-2.20211107git90294ccd
- Drop “gcc cleanup” patch (finally upstreamed)

* Sun Nov 07 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1943-1.20211107git90294ccd
- Update to version 1943

* Tue Nov 02 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1942-1.20211102git8926696a
- Update to version 1942

* Mon Oct 25 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1939-2.20211018git693f9fb8
- Use %%%%python3 macro instead of %%%%__python3

* Mon Oct 18 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1939-1.20211018git693f9fb8
- Update to version 1939

* Mon Sep 27 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1938-3.20210927git0153d369
- Reduce macro indirection in the spec file

* Mon Sep 27 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1938-2.20210927git0153d369
- Correctly stop overriding optimization flags

* Mon Sep 27 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1938-1.20210927git0153d369
- Update to version 1938

* Sun Sep 19 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1937-1.20210919gitde86ec41
- Update to version 1937

* Sat Sep 11 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1936-1.20210911git07e2e1b9
- Update to version 1936 (Fix typos in README.md)

* Mon Sep 06 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1935-1.20210906git46b572ce
- Update to version 1935

* Thu Aug 12 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1934-1.20210812git69ec4fca
- Update to version 1934

* Tue Aug 03 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1931-1.20210803giteea3906f
- Update to version 1931

* Thu Jul 22 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1929-3.20210720gitd565aa3e
- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild

* Tue Jul 20 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1929-2.20210720gitd565aa3e
- Drop workarounds for F32 and EPEL

* Tue Jul 20 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1929-1.20210720gitd565aa3e
- Update to version 1929

* Thu Jul 08 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1924-1.20210708git24e2f7df
- Update to version 1924

* Sun Jun 27 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1921-1.20210627git4d207c94
- Update to version 1921

* Wed Jun 23 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1920-1.20210623gitd924640c
- Update to version 1920
- Stop overriding optimization flags

* Tue Jun 22 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1919-1.20210622gite9b84332
- Update to version 1919

* Wed Jun 16 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1916-1.20210616gitd2dce752
- Update to version 1916

* Tue May 11 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1910-2.20210511git39a87c0b
- Rebase chromium-84.0.4147.105-gn-gcc-cleanup.patch as
  gn-39a87c0b-gcc-cleanup.patch

* Tue May 11 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1910-1.20210511git39a87c0b
- Update to version 1910

* Sun May 02 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1898-1.20210502git6771ce56
- Update to version 1898

* Sat Apr 10 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1897-1.20210410gitdba01723
- Update to version 1897

* Tue Apr 06 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1896-1.20210406gita95c8a3c
- Update to version 1896
- Do not use %%exclude for unpackaged files (RPM 4.17 compatibility)

* Mon Mar 29 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1894-4.20210329gitb2e3d862
- Update to version 1894

* Wed Mar 17 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1893-3.20210314git64b3b940
- Stop installing xemacs plugins
  (https://fedoraproject.org/wiki/Changes/Deprecate_xemacs)

* Wed Mar 17 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1893-2.20210314git64b3b940
- Improved source URL based on package review feedback

* Mon Mar  1 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1893-1.20210314git64b3b940
- Update to version 1893

* Mon Mar  1 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1891-1.20210127gitdfcbc6fe
- Update to version 1891

* Sun Jan  3 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1884-1.20210127git94bda7cc
- Update to version 1884

* Sun Jan  3 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1876-1.20210103git0d67e272
- Update to version 1876

* Sat Dec 19 2020 Benjamin A. Beasley <code@musicinmybrain.net> - 1875-1.20201219git4e260f1d
- Initial spec file