init build tool gn

gn-always-python3.patch

@@ -0,0 +1,12 @@
+diff -Nur a/src/gn/exec_process_unittest.cc b/src/gn/exec_process_unittest.cc
+--- a/src/gn/exec_process_unittest.cc	2022-11-25 10:58:41.000000000 +0800
++++ b/src/gn/exec_process_unittest.cc	2022-11-26 14:55:45.715627292 +0800
+@@ -33,7 +33,7 @@
+   args.push_back(L"-c");
+   args.push_back(base::UTF8ToUTF16(command));
+ #else
+-  args.push_back("python");
++  args.push_back("python3");
+   args.push_back("-c");
+   args.push_back(command);
+ #endif

gn.spec

@@ -0,0 +1,104 @@
+%global commit e1ac69b17da0c6d4f5e34e686690ff70c6a43e6f
+
+Name:           gn
+Version:        1.0.0
+Release:        1
+Summary:        Meta-build system that generates build files for Ninja
+License:        BSD-3-Clause
+URL:            https://gn.googlesource.com/gn
+Source0:        %{url}/+archive/gn-%{commit}.tar.gz
+Source1:        last_commit_position.h
+Patch0:         gn-always-python3.patch
+
+BuildRequires:  python3-devel ninja-build gcc-c++ clang emacs-common help2man
+
+Requires:       vim-filesystem
+Requires:       python3
+Provides:       vim-gn = %{version}-%{release}
+Requires:       emacs-filesystem >= %{_emacs_version}
+Provides:       emacs-gn = %{version}-%{release}
+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
+
+mkdir -p ./out
+cp -vp '%{SOURCE1}' ./out
+
+cp -vp misc/vim/README.md README-vim.md
+
+
+%build
+AR='gcc-ar'; export AR
+%set_build_flags
+%{__python3} build/gen.py \
+    --no-last-commit-position \
+    --no-strip \
+    --no-static-libstdc++
+ninja -C out -v
+
+help2man \
+    --name='%{summary}' \
+    --version-string="gn $(./out/gn --version)" \
+    --no-info \
+    ./out/gn |
+  tr -d '\302\240' |
+  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
+rm -rf %{buildroot}%{_datadir}/vim/vimfiles/__pycache__
+
+%check
+out/gn_unittests
+
+
+%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
+%doc docs
+%doc examples
+%doc infra
+%doc tools
+
+
+%changelog
+* Tue Nov 29 2022 xuchongyu <xuchongyu@huawei.com> 1.0.0-1
+- init

last_commit_position.h

@@ -0,0 +1,9 @@
+// Generated by build/gen.py.
+
+#ifndef OUT_LAST_COMMIT_POSITION_H_
+#define OUT_LAST_COMMIT_POSITION_H_
+
+#define LAST_COMMIT_POSITION_NUM 2064
+#define LAST_COMMIT_POSITION "2064 (cc28efe62ef0)"
+
+#endif  // OUT_LAST_COMMIT_POSITION_H_