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|
name: Install Clang
description: Install Clang & LLVM
inputs:
platform:
description: Target platform
required: false
default: x64
cygwin:
description: Install inside Cygwin
required: false
default: 0
runs:
using: composite
steps:
- run: |
New-Variable os -Value '${{ runner.os }}' -Option Constant
New-Variable linux_host -Value ($os -eq 'Linux') -Option Constant
New-Variable cygwin_host -Value ('${{ inputs.cygwin }}' -eq '1') -Option Constant
New-Variable windows_host -Value ($os -eq 'Windows' -and !$cygwin) -Option Constant
New-Variable x64 -Value ('${{ inputs.platform }}' -eq 'x64') -Option Constant
function Locate-Choco {
$path = Get-Command 'choco' -ErrorAction SilentlyContinue
if ($path) {
$path.Path
} else {
Join-Path ${env:ProgramData} 'chocolatey' 'bin' 'choco'
}
}
function Convert-CygwinPath {
# Like cygpath -wa, but don't resolve symlinks.
param(
[Parameter(Mandatory=$true)]
[string] $Path
)
$Path = realpath.exe --no-symlinks -- $Path
$dirname = dirname.exe -- $Path
$dirname = cygpath.exe -wa $dirname
Join-Path $dirname (Split-Path $Path -Leaf)
}
if ($linux_host) {
sudo apt update
if ($x64) {
sudo apt install -y clang g++
} else {
sudo apt install -y clang g++-multilib
}
} elseif ($cygwin_host) {
if (!$x64) {
echo @'
::warning ::
32-bit-targeting Clang is unavailable on 64-bit Cygwin.
Please use 32-bit Cygwin instead.
If you _are_ using 32-bit Cygwin, please ignore this message.
'@
}
$choco = Locate-Choco
# IDK why, but without libiconv-devel, even a "Hello, world!"
# C++ app cannot be compiled as of December 2020. Also, libstdc++
# is required; it's simpler to install gcc-g++ for all the
# dependencies.
& $choco install -y --no-progress --source=cygwin clang libiconv-devel gcc-g++
# clang/clang++ are Cygwin symlinks, pointing to clang-X.exe. It's
# convenient to make proper executables instead so that they can be
# called from Windows' command prompt.
find.exe /usr/bin -iname 'clang*' -type l | %{
$link_path = $_
$dest_path = readlink.exe --canonicalize-existing -- $link_path
$link_winpath = Convert-CygwinPath $link_path
$dest_winpath = Convert-CygwinPath $dest_path
echo "Removing symlink: $link_winpath"
Remove-Item $link_winpath -Force
echo "Creating hardlink '$link_winpath.exe', pointing to '$dest_winpath'"
New-Item -ItemType HardLink -Path "$link_winpath.exe" -Value $dest_winpath | Out-Null
}
} elseif ($windows_host) {
$choco = Locate-Choco
& $choco install -y --no-progress llvm
echo (Join-Path $env:ProgramFiles LLVM bin) >> $env:GITHUB_PATH
} else {
throw "Sorry, installing Clang is unsupported on $os"
}
shell: pwsh
branding:
icon: star
color: green
|
