Last active
August 22, 2018 17:13
-
-
Save antmd/0c2230d6732ba75a96ef32521d3d95c8 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # cat rh-toolset-redirect | |
| #!/bin/bash - | |
| #=============================================================================== | |
| # | |
| # FILE: rh-toolset-redirect.sh | |
| # | |
| # DESCRIPTION: Redirect command to devtoolset command. This script is designed | |
| # to be the target of symlinks of the form: | |
| # | |
| # <RedHatToolsetName>-redirect | |
| # | |
| # e.g. 'devtoolset-redirect', or 'llvm-toolset-redirect' | |
| # | |
| # And that symlink should in turn be the target of a versioned | |
| # tool name such as 'clang7' or 'g++6' | |
| # | |
| # E.g. g++6. It will strip the toolset_version, and redirect | |
| # the arguments to the toolset version of <binary_name> | |
| # | |
| # Additionally, an unversioned symlink to a versioned symlink | |
| # will use the versioned symlink to determine the version. | |
| # | |
| # E.g., if we have symlinks: | |
| # | |
| # clang --> clang7 --> llvm-toolset-redirect -> <this-script> | |
| # | |
| # Invoking 'clang' will mean the version will be taken from | |
| # 'clang7', and the toolset name will be 'llvm-toolset'. | |
| # This allows you to set a default version by | |
| # creating an unversioned symlink to the desired versioned | |
| # symlink. | |
| # | |
| # The toolset to redirect to is taken from the penultimate | |
| # symlink (in the example 'llvm-toolset') | |
| # | |
| # CREATED: 2017-07-18 | |
| # | |
| # AUTHOR: Anthony Dervish | |
| # | |
| #=============================================================================== | |
| set -o nounset # Treat unset variables as an error | |
| Script="${BASH_SOURCE[0]}" | |
| ScriptDir="$( cd "$( dirname "${Script}" )" && pwd -P )" | |
| function GetVersion() { | |
| local bname=$(basename $Script) | |
| local version=$(echo "${bname}" | sed -E 's/^.*([0-9]+)$/\1/') | |
| if [[ "${version}" != "${bname}" ]]; then | |
| echo "$version" | |
| fi | |
| } | |
| ToolsetVersion=$(GetVersion "${Script}") | |
| if [[ -z "$ToolsetVersion" ]]; then | |
| if [[ -h "${Script}" ]]; then | |
| Script="${ScriptDir}/$(basename $(readlink "${Script}"))" | |
| ToolsetVersion=$(GetVersion "${Script}") | |
| if [[ -z "${ToolsetVersion}" ]]; then | |
| echo "Symlink name to this script should end in an integer toolset version!" >&2 | |
| exit 1 | |
| fi | |
| fi | |
| fi | |
| if [[ ! -h "${Script}" ]]; then | |
| echo "${Script} should be a symlink to <toolset>-redirect, which in turn should be a" | |
| echo "symlink to this script." | |
| exit 1 | |
| fi | |
| ToolsetSymlink=$(readlink "${Script}") | |
| UnversionedToolset="${ToolsetSymlink%-redirect}" | |
| OrigName=$(basename "${Script}") | |
| ToolsetName=${UnversionedToolset}-${ToolsetVersion} | |
| ToolsetDir="/opt/rh/${ToolsetName}" | |
| if [[ ! -d "${ToolsetDir}" ]]; then | |
| echo "Unknown ${UnversionedToolset} version '${ToolsetVersion}'" >&2 | |
| exit 1 | |
| fi | |
| RedirectBaseDir="${ToolsetDir}/root/bin" | |
| ToolName=${OrigName%${ToolsetVersion}} | |
| ToolBinary="${RedirectBaseDir}/${ToolName}" | |
| cat <<EOF | sed 's/\"/\\"/g' | | |
| ${ToolBinary} $@ | |
| EOF | |
| exec scl enable "${ToolsetName}" - | |
| # vim: filetype=sh: |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment