mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 11:40:14 +01:00
Dana Jansens
c45efd625f
Clang 21 is now the latest version available in Ubuntu LTS, so we can move to it.
83 lines
3.4 KiB
YAML
83 lines
3.4 KiB
YAML
# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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# Exceptions. See /LICENSE for license information.
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# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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name: Setup build environment (Ubuntu)
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runs:
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using: composite
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steps:
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# Ubuntu images start with ~23GB available; this takes a few seconds to add
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# ~22GB more.
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#
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# Although we could delete more, if we run into a limit, not deleting
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# everything provides a little flexibility to get space while trying
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# to shrink the build.
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- name: Free up disk space
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uses: jlumbroso/free-disk-space@54081f138730dfa15788a46383842cd2f914a1be # v1.3.1
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with:
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android: true
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dotnet: true
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haskell: true
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# Enabling large-packages adds ~3 minutes to save ~4GB, so turn it off
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# to save time.
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large-packages: false
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# Select the LLVM release - by the cache key and the download.
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- name: Select LLVM release
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shell: bash
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run: |
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if [[ "${{ runner.arch }}" == "ARM64" ]]; then
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echo "LLVM_RELEASE=21.1.8" >> "$GITHUB_ENV"
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else
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echo "LLVM_RELEASE=21.1.8" >> "$GITHUB_ENV"
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fi
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# Cache and install a recent version of LLVM. This uses the GitHub action
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# cache to avoid directly downloading on each iteration and improve
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# reliability.
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- name: Cache LLVM and Clang installation
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id: cache-llvm-ubuntu
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uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
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with:
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path: ~/llvm
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key: LLVM-${{ env.LLVM_RELEASE }}-Cache-ubuntu-${{ runner.arch }}
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- name: Download LLVM and Clang installation
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if: steps.cache-llvm-ubuntu.outputs.cache-hit != 'true'
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shell: bash
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run: |
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cd ~
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# `LLVM_RELEASE` comes from the "Select LLVM release" step; `runner.arch`
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# (`X64`/`ARM64`) matches the package's arch suffix.
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LLVM_TARBALL_NAME=LLVM-$LLVM_RELEASE-Linux-${{ runner.arch }}
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LLVM_PATH=~/llvm
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echo "*** Downloading $LLVM_RELEASE"
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wget --show-progress=off "https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_RELEASE/$LLVM_TARBALL_NAME.tar.xz"
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echo "*** Extracting $LLVM_TARBALL_NAME.tar.xz"
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mkdir $LLVM_PATH
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tar -xJf $LLVM_TARBALL_NAME.tar.xz --strip-components=1 -C $LLVM_PATH
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echo "*** Deleting $LLVM_TARBALL_NAME.tar.xz"
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rm $LLVM_TARBALL_NAME.tar.xz
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echo "*** Testing `clang++ --version`"
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$LLVM_PATH/bin/clang++ --version
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# The installation contains *huge* parts of LLVM we don't need for the
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# toolchain. Prune them here to keep our cache small. x86-64 and
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# AArch64 use different LLVM releases whose tool sets differ, so `-f`
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# ignores entries that are absent from a given package.
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echo "*** Cleaning the 'llvm' directory"
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rm -f $LLVM_PATH/lib/{*.a,*.so,*.so.*}
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rm -f $LLVM_PATH/bin/{flang-*,mlir-*,clang-{scan-deps,check,repl},*-test,llvm-{lto*,reduce,bolt*,exegesis,jitlink},bugpoint,opt,llc}
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echo "*** Size of the 'llvm' directory"
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du -hs $LLVM_PATH
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- name: Setup LLVM and Clang paths
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shell: bash
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run: |
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LLVM_PATH=~/llvm
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echo "Using ${LLVM_PATH}"
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echo "${LLVM_PATH}/bin" >> $GITHUB_PATH
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echo '*** ls "${LLVM_PATH}"'
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ls "${LLVM_PATH}"
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echo '*** ls "${LLVM_PATH}/bin"'
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ls "${LLVM_PATH}/bin"
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