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|
name: Install Clang
description: Install Clang & LLVM
inputs:
version:
description: Version to install
required: false
default: latest
platform:
description: Target platform
required: false
default: x64
cc:
description: Set up cc/clang/c++/clang++ executables
required: false
default: 1
outputs:
clang:
description: clang binary name
value: '${{ steps.install.outputs.clang }}'
clangxx:
description: clang++ binary name
value: '${{ steps.install.outputs.clangxx }}'
runs:
using: composite
steps:
- id: install
env:
ARG_VERSION: ${{ inputs.version }}
ARG_PLATFORM: ${{ inputs.platform }}
run: |
$linux_host = '${{ runner.os }}' -eq 'Linux'
$windows_host = '${{ runner.os }}' -eq 'Windows'
$version = (Get-ChildItem env:ARG_VERSION).Value
$latest = $version -eq 'latest'
$x64 = (Get-ChildItem env:ARG_PLATFORM).Value -eq 'x64'
function Locate-Choco {
$path = Get-Command 'choco' -ErrorAction SilentlyContinue
if ($path) {
$path.Path
} else {
Join-Path (Get-ChildItem env:ProgramData).Value 'chocolatey' 'bin' 'choco'
}
}
function Install-Package {
param(
[Parameter(Mandatory=$true, ValueFromRemainingArguments=$true)]
[string[]] $Packages
)
if ($script:linux_host) {
sudo apt-get update
sudo DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends $Packages
} elseif ($script:windows_host) {
$choco = Locate-Choco
& $choco upgrade $Packages -y --no-progress --allow-downgrade
} else {
throw "Sorry, installing packages is unsupported on $script:os"
}
}
function Format-UpstreamVersion {
param(
[Parameter(Mandatory=$true)]
[string] $Version
)
switch -Exact ($Version) {
# Since version 7, they dropped the .0 suffix. The earliest
# version supported is 3.9 on Bionic; versions 4, 5 and 6 are
# mapped to LLVM-friendly 4.0, 5.0 and 6.0.
'4' { '4.0' }
'5' { '5.0' }
'6' { '6.0' }
default { $Version }
}
}
function Format-AptLine {
param(
[Parameter(Mandatory=$true)]
[string] $Version
)
if (!(Get-Command lsb_release -ErrorAction SilentlyContinue)) {
throw "Couldn't find lsb_release; LLVM only provides repositories for Debian/Ubuntu"
}
$codename = lsb_release -sc
"deb http://apt.llvm.org/$codename/ llvm-toolchain-$codename-$Version main"
}
function Add-UpstreamRepo {
param(
[Parameter(Mandatory=$true)]
[string] $Version
)
wget -qO- https://apt.llvm.org/llvm-snapshot.gpg.key | sudo tee /etc/apt/trusted.gpg.d/apt.llvm.org.asc
$apt_line = Format-AptLine $Version
sudo add-apt-repository --yes --update $apt_line
}
$clang = 'clang'
$clangxx = 'clang++'
$lld = 'ld.lld'
if ($linux_host) {
$pkg_clang = 'clang'
$pkg_clang_format = 'clang-format'
$pkg_clang_tidy = 'clang-tidy'
$pkg_llvm = 'llvm'
$pkg_rt_dev = 'libclang-rt-dev'
$pkg_gxx = 'g++'
$pkg_lld = 'lld'
if (!$latest) {
$pkg_version = Format-UpstreamVersion $version
Add-UpstreamRepo $pkg_version
$pkg_clang = "$pkg_clang-$pkg_version"
$pkg_clang_format = "$pkg_clang_format-$pkg_version"
$pkg_clang = "$pkg_clang_tidy-$pkg_version"
$pkg_llvm = "$pkg_llvm-$pkg_version"
$pkg_rt_dev = "libclang-rt-$pkg_version-dev"
$pkg_lld = "$pkg_lld-$pkg_version"
$clang = "$clang-$pkg_version"
$clangxx = "$clangxx-$pkg_version"
$lld = "$lld-$pkg_version"
}
if (!$x64) {
$pkg_gxx = 'g++-multilib'
}
$packages = $pkg_clang,$pkg_clang_format,$pkg_clang_tidy,$pkg_llvm,$pkg_gxx,$pkg_lld
# The rt-dev library doesn't seem to exist for versions below 14:
# https://apt.llvm.org/jammy/pool/main/l/
if ($latest -or [int]$version -ge 14) {
if (Select-String -Path /etc/os-release -Pattern 'VERSION_CODENAME=jammy' -SimpleMatch -Quiet) {
if (-not $latest -and [int]$version -ne 15) {
# On Jammy, there's a file conflict between rt-dev and common-dev for version 15.
# Additionally, the whole installation thing was only checked on Github-hosted
# runners (Jammy & Noble at the moment of writing).
# _And_ there's no default libclang-rt-dev package on Jammy.
$packages += $pkg_rt_dev
}
} else {
$packages += $pkg_rt_dev
}
}
Install-Package $packages
} elseif ($windows_host) {
Install-Package llvm
echo 'C:\Program Files\LLVM\bin' >> $env:GITHUB_PATH
} else {
throw "Sorry, installing Clang is unsupported on $os"
}
echo "clang=$clang" >> $env:GITHUB_OUTPUT
echo "clangxx=$clangxx" >> $env:GITHUB_OUTPUT
echo "lld=$lld" >> $env:GITHUB_OUTPUT
shell: pwsh
- env:
ARG_CC: ${{ inputs.cc }}
CLANG: ${{ steps.install.outputs.clang }}
CLANGXX: ${{ steps.install.outputs.clangxx }}
run: |
$linux_host = '${{ runner.os }}' -eq 'Linux'
$windows_host = '${{ runner.os }}' -eq 'Windows'
$cc = (Get-ChildItem env:ARG_CC).Value -eq '1'
$clang = (Get-ChildItem env:CLANG).Value
$clangxx = (Get-ChildItem env:CLANGXX).Value
function Link-Exe {
param(
[Parameter(Mandatory=$true)]
[string] $Exe,
[Parameter(Mandatory=$true)]
[string] $LinkName
)
$exe_path = (Get-Command $Exe).Path
$link_dir = if ($script:windows_host) { Split-Path $exe_path } else { '/usr/local/bin' }
$link_name = if ($script:windows_host) { "$LinkName.exe" } else { $LinkName }
$link_path = Join-Path $link_dir $link_name
echo "Creating link $link_path -> $exe_path"
if ($script:linux_host) {
sudo ln -f -s $exe_path $link_path
} elseif ($script:windows_host) {
New-Item -ItemType HardLink -Path $link_path -Value $exe_path -Force | Out-Null
}
}
if ($cc) {
Link-Exe $clang cc
if ($clang -ne 'clang') {
Link-Exe $clang 'clang'
}
Link-Exe $clangxx c++
if ($clangxx -ne 'clang++') {
Link-Exe $clangxx 'clang++'
}
}
shell: pwsh
branding:
icon: star
color: green
|
