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|
name: 'Verify compiler version meets the project minimum'
description: 'Compares the installed compiler against the version in linux-build-deps/minimum-${compiler}-version.txt and reports whether we need to install a newer version and whether that version is available in the distro repos.'
inputs:
compiler:
description: 'gcc or clang'
required: true
packageManager:
description: 'apt, dnf, pacman, or zypper'
required: true
outputs:
needs_install:
description: 'true if default version is below the minimum'
value: ${{ steps.check.outputs.needs_install }}
available_in_distro:
description: 'true if compiler-${min} can be installed from the distro repos'
value: ${{ steps.check.outputs.available_in_distro }}
cc:
description: 'resolved C compiler binary name to use downstream'
value: ${{ steps.check.outputs.cc }}
cxx:
description: 'resolved C++ compiler binary name to use downstream'
value: ${{ steps.check.outputs.cxx }}
version:
description: 'the minimum version read from linux-build-deps/minimum-${compiler}-version.txt'
value: ${{ steps.check.outputs.version }}
runs:
using: composite
steps:
- id: check
shell: bash
run: |
get_min() { cat "linux-build-deps/minimum-$1-version.txt"; }
get_default_major() { "$1" --version 2>/dev/null | head -1 | grep -oE '[0-9]+' | head -1; }
cxx_for() { case "$1" in gcc) echo g++ ;; clang) echo clang++ ;; esac; }
probe_distro() {
local compiler="$1" min="$2" package_manager="$3"
case "$package_manager" in
apt) apt-cache show "${compiler}-${min}" >/dev/null 2>&1 ;;
dnf) return 1 ;; # Fedora ships a single gcc/clang version, no -N packages
pacman) return 1 ;; # Arch ships a single gcc/clang version, no -N packages
zypper) zypper -n se -x "${compiler}${min}" 2>/dev/null | grep -q "${compiler}${min}" ;;
*) return 1 ;;
esac
}
compiler='${{ inputs.compiler }}'
package_manager='${{ inputs.packageManager }}'
min=$(get_min "$compiler")
default_major=$(get_default_major "$compiler")
cc_base="$compiler"
cxx_base=$(cxx_for "$compiler")
if [ -n "$default_major" ] && [ "$default_major" -ge "$min" ]; then
needs_install=false
cc="$cc_base"; cxx="$cxx_base"
available_in_distro=true
else
needs_install=true
cc="$cc_base-$min"; cxx="$cxx_base-$min"
probe_distro "$cc_base" "$min" "$package_manager" && available_in_distro=true || available_in_distro=false
fi
echo "compiler=$compiler min=$min default_major=${default_major:-NONE}"
echo "needs_install=$needs_install available_in_distro=$available_in_distro cc=$cc cxx=$cxx"
{
echo "needs_install=$needs_install"
echo "available_in_distro=$available_in_distro"
echo "cc=$cc"
echo "cxx=$cxx"
echo "version=$min"
} >> "$GITHUB_OUTPUT"
|
