Provision GCC 8.2 to Ubuntu 18.04 and set as default compiler

The provisioning scripts supports prebuilt binaries. When available,
those are extracted taken into use. If they are not found,
sources are downloaded and built.

Task-number: QTQAINFRA-2066
Change-Id: Id1a59be2d1cbdb29d316ade572c3ce8f17ad3a6b
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>

1 files changed, 102 insertions, 0 deletions

diff --git a/coin/provisioning/common/linux/gcc.sh b/coin/provisioning/common/linux/gcc.sh
new file mode 100755
index 00000000..44ff654b
--- /dev/null
+++ b/coin/provisioning/common/linux/gcc.sh
@@ -0,0 +1,102 @@
+#!/usr/bin/env bash
+
+#############################################################################
+##
+## Copyright (C) 2018 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the provisioning scripts of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:LGPL21$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see http://www.qt.io/terms-conditions. For further
+## information use the contact form at http://www.qt.io/contact-us.
+##
+## GNU Lesser General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU Lesser
+## General Public License version 2.1 or version 3 as published by the Free
+## Software Foundation and appearing in the file LICENSE.LGPLv21 and
+## LICENSE.LGPLv3 included in the packaging of this file. Please review the
+## following information to ensure the GNU Lesser General Public License
+## requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+## http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+##
+## As a special exception, The Qt Company gives you certain additional
+## rights. These rights are described in The Qt Company LGPL Exception
+## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+# This script builds GCC from sources
+
+# shellcheck source=../unix/DownloadURL.sh
+source "${BASH_SOURCE%/*}/../unix/DownloadURL.sh"
+
+set -ex
+
+function InstallGCC() {
+    version=$1
+    priority=$2
+    prebuiltSHA1=$3
+    sourcesSHA1=$4
+
+    tmpFolder="/tmp"
+
+    prebuiltGCC="http://ci-files01-hki.intra.qt.io/input/gcc/gcc-$version-prebuilt.tar.gz"
+    prebuiltTarget="$tmpFolder/gcc-$version-prebuilt.tar.gz"
+    installPrefix="/usr/local"
+
+    suffixVersion=$(echo "$version" | cut -d "." -f1,2)
+    sourceFile="gcc-$version.tar.xz"
+    cachedUrl="http://ci-files01-hki.intra.qt.io/input/gcc/$sourceFile"
+    officialUrl="ftp://ftp.mpi-sb.mpg.de/pub/gnu/mirror/gcc.gnu.org/pub/gcc/releases/gcc-$version/$sourceFile"
+
+    targetFile="$tmpFolder/$sourceFile"
+    buildFolder="$HOME/gcc_build"
+
+    echo "Fetching prebuilt GCC."
+    curl --fail -L --retry 5 --retry-delay 5 -o "$prebuiltTarget" "$prebuiltGCC" || (
+        echo "Fetching prebuilt GCC failed. Building from sources."
+        DownloadURL "$cachedUrl" "$officialUrl" "$sourcesSHA1" "$targetFile"
+    )
+
+    if [ -f "$prebuiltTarget" ]; then
+        echo "$prebuiltSHA1 *$prebuiltTarget" | sha1sum -c -
+        sudo tar -xzf "$prebuiltTarget" -C "$installPrefix"
+        rm -rf "$prebuiltTarget"
+    else
+        tar -C "$tmpFolder" -xJf "$targetFile"
+        mkdir -p "$buildFolder"
+        cd "$tmpFolder/gcc-$version"
+        sudo "$tmpFolder/gcc-$version/contrib/download_prerequisites"
+        cd "$buildFolder"
+        "$tmpFolder/gcc-$version/configure" --disable-bootstrap --enable-languages=c,c++,lto --prefix="$installPrefix" --program-suffix="-$suffixVersion"
+        make -j4
+        sudo make install
+
+        rm -rf "$targetFile"
+        rm -rf "$tmpFolder/gcc-$version"
+    fi
+
+    # openSUSE has update-alternatives under /usr/sbin and it has grouped the commands by means of master and slave links
+    if [ -f "/usr/sbin/update-alternatives" ]; then
+        sudo /usr/sbin/update-alternatives --install /usr/bin/gcc gcc "$installPrefix/bin/gcc-$suffixVersion" "$priority" \
+                                           --slave /usr/bin/g++ g++ "$installPrefix/bin/g++-$suffixVersion" \
+                                           --slave /usr/bin/cc cc "$installPrefix/bin/gcc-$suffixVersion" \
+                                           --slave /usr/bin/c++ c++ "$installPrefix/bin/g++-$suffixVersion"
+    else
+        sudo /usr/bin/update-alternatives --install /usr/bin/gcc gcc "$installPrefix/bin/gcc-$suffixVersion" "$priority"
+        sudo /usr/bin/update-alternatives --install /usr/bin/g++ g++ "$installPrefix/bin/g++-$suffixVersion" "$priority"
+        sudo /usr/bin/update-alternatives --install /usr/bin/cc cc "$installPrefix/bin/gcc-$suffixVersion" "$priority"
+        sudo /usr/bin/update-alternatives --install /usr/bin/c++ c++ "$installPrefix/bin/g++-$suffixVersion" "$priority"
+    fi
+
+
+    echo "GCC = $version" >> ~/versions.txt
+}