added extra/gn

extra/gn/PKGBUILD

@@ -0,0 +1,50 @@
+# Maintainer: Evangelos Foutras <evangelos@foutrelis.com>
+
+# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
+#  - strip -fstack-clash-protection from CFLAGS
+
+pkgname=gn
+pkgver=0.2042.2ecd43a1
+_commit=2ecd43a10266bd091c98e6dcde507c64f6a0dad3
+pkgrel=1
+pkgdesc="Meta-build system that generates build files for Ninja"
+arch=('x86_64')
+url="https://gn.googlesource.com/gn/"
+license=('BSD')
+depends=('gcc-libs')
+makedepends=('clang' 'ninja' 'python' 'git')
+source=(git+https://gn.googlesource.com/gn#commit=$_commit)
+sha256sums=('SKIP')
+
+pkgver() {
+  cd $pkgname
+  echo 0.$(git rev-list --count initial-commit..).$(git rev-parse --short=8 HEAD)
+}
+
+build() {
+  cd $pkgname
+  # clang-13: error: argument unused during compilation: '-fstack-clash-protection' [-Werror,-Wunused-command-line-argument]
+  CFLAGS=${CFLAGS/-fstack-clash-protection/}
+  CXXFLAGS=${CXXFLAGS/-fstack-clash-protection/}
+  ./build/gen.py
+  ninja -C out
+}
+
+check() {
+  cd $pkgname
+  ./out/gn_unittests
+}
+
+package() {
+  cd $pkgname
+  install -D out/gn "$pkgdir/usr/bin/gn"
+  install -Dm644 -t "$pkgdir/usr/share/doc/$pkgname" docs/*
+  install -Dm644 -t "$pkgdir/usr/share/licenses/$pkgname" LICENSE
+
+  mkdir -p "$pkgdir/usr/share/vim/vimfiles"
+  cp -r misc/vim/{autoload,ftdetect,ftplugin,syntax} \
+    "$pkgdir/usr/share/vim/vimfiles/"
+  install -Dm644 -t "$pkgdir/usr/share/emacs/site-lisp" misc/emacs/gn-mode.el
+}
+
+# vim:set ts=2 sw=2 et:

extra/gn/chromium-gn-version.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -eo pipefail
+
+readonly CURL='curl -s --compressed'
+
+gn_revision_from_chrome_version() {
+  $CURL "https://chromium.googlesource.com/chromium/src/+/$1/DEPS?format=TEXT" \
+    | base64 -d | grep -Po "'gn_version': 'git_revision:\K[^']*"
+}
+
+{
+  echo channel version gn_revision
+  echo ------- ------- -----------
+  while read -r channel version; do
+    echo "$channel $version $(gn_revision_from_chrome_version "$version")"
+  done < <(
+    $CURL https://omahaproxy.appspot.com/json \
+      | jq -r '.[] | select ( .os == "linux" ) | .versions | .[] | "\(.channel) \(.version)"'
+  )
+} | column -t