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CI: Add snapcraft support
To begin the work of supporting snaps of rustup, we need to first ensure we can build the snaps in the first place. Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>
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‎.gitignore

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/**/target
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/home
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/local-rustup
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/snapcraft

‎ci/actions-templates/linux-builds-template.yaml

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include:
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- target: x86_64-unknown-linux-gnu
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run_tests: YES
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snap_arch: amd64
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- target: i686-unknown-linux-gnu # skip-pr skip-master
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snap_arch: i386 # skip-pr skip-master
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- target: aarch64-unknown-linux-gnu # skip-pr
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snap_arch: arm64 # skip-pr
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- target: armv7-unknown-linux-gnueabihf
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snap_arch: armhf
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- target: powerpc64le-unknown-linux-gnu # skip-pr skip-master
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snap_arch: ppc64el # skip-pr skip-master
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- target: s390x-unknown-linux-gnu # skip-pr skip-master
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snap_arch: s390x # skip-pr skip-master
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steps:
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- uses: actions/checkout@v2
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with:
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AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
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AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
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if: github.event_name == 'push' && github.ref == 'refs/heads/stable'
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- name: Build a snapcraft configuration file
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run: |
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bash ci/snapcraft.bash
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if: matrix.snap_arch != ''
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env:
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DO_SNAP: 1
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SNAP_ARCH: ${{ matrix.snap_arch }}
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SNAP_EDGE: 1 # skip-stable
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- uses: snapcore/action-build@v1
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id: snapcraftbuild
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with:
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path: snapcraft
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if: matrix.snap_arch != ''
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- uses: snapcore/action-publish@v1
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with:
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store_login: ${{ secrets.SNAPCRAFT_TOKEN }}
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snap: ${{ steps.snapcraftbuild.outputs.snap }}
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release: edge # skip-pr skip-stable
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release: beta # skip-pr skip-master
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if: matrix.snap_arch != '' # skip-pr
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if: matrix.snap_arch == 'not-for-prs' # skip-master skip-stable
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- name: Clear the cargo caches
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run: |
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cargo install cargo-cache --no-default-features --features ci-autoclean

‎ci/snapcraft.bash

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#!/bin/bash
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set -efu
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set -o pipefail
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# This script encapsulates the job of preparing snapcract configuration for the
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# rustup snap. We construct either an edge snap (builds on PRs or master)
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# or a beta snap if built from a non-master branch.
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# If built on master, we should publish the edge snap
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# If built on stable, we should publish the beta snap
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# To parameterise the build, the following environment variables are needed:
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# DO_SNAP=1 <-- without this, we don't run
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# SNAP_EDGE=1 <-- with this, we build an edge/devel snap, otherwise a release snap
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# SNAP_ARCH=... <-- without this we cannot build, this is the snap architecture we're building
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if [ -z "${DO_SNAP:-}" ]; then
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echo "SNAP: Not attempting to snap"
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exit 0
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fi
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if [ -z "${SNAP_ARCH:-}" ]; then
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echo "SNAP: Unable to generate snap, architecture unset"
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exit 1
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else
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echo "SNAP: Constructing snap for architecture $SNAP_ARCH"
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fi
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if [ -n "${SNAP_EDGE:-}" ]; then
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echo "SNAP: Generated snap will be an grade:devel snap"
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GRADE=devel
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else
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echo "SNAP: Generated snap will be a grade:stable snap"
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GRADE=stable
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fi
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# This is the list of proxies which the snap will contain. This needs to match
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# the set of aliases which the snap has been allocated. If we add to this
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# list but don't get the aliases added, then people won't see the proxy except
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# as rustup.$PROXY. If we have an alias which is not a supported proxy name
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# then rustup might get sad.
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PROXIES="cargo cargo-clippy cargo-fmt cargo-miri clippy-driver rls rustc rustdoc rustfmt"
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# From now on, things should be automagic
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VERSION=$(grep "^version" Cargo.toml | head -1 | cut -d\" -f2)
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rm -rf snapcraft
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mkdir -p snapcraft/snap
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cd snapcraft
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cat > snap/snapcraft.yaml <<SNAP
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name: rustup
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version: $VERSION
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confinement: classic
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base: core18
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architectures:
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- build-on: [amd64]
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run-on: [$SNAP_ARCH]
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description: |
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Rustup is the Rust Language's installer and primary front-end. You probably
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want this if you want to develop anything written in Rust.
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SNAP
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if [ -n "${SNAP_EDGE:-1}" ]; then
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cat >> snap/snapcraft.yaml <<SNAP
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Please note, this snap is experimental and functionality cannot be guaranteed
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to be consistent with released snaps.
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summary: "EXPERIMENTAL: The Rust Language Installer"
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grade: $GRADE
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SNAP
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else
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cat >> snap/snapcraft.yaml <<SNAP
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summary: "The Rust Language Installer"
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grade: $GRADE
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SNAP
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fi
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cat >> snap/snapcraft.yaml <<SNAP
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parts:
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rustup:
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plugin: nil
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build-attributes: [no-patchelf]
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source: inputs
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override-build: |
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mkdir -p \$SNAPCRAFT_PART_INSTALL/bin
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cp rustup-init \$SNAPCRAFT_PART_INSTALL/bin/rustup
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SNAP
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for PROXY in $PROXIES; do
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cat >> snap/snapcraft.yaml <<SNAP
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ln \$SNAPCRAFT_PART_INSTALL/bin/rustup \$SNAPCRAFT_PART_INSTALL/bin/$PROXY
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SNAP
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done
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cat >> snap/snapcraft.yaml << 'SNAP'
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prime:
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- "-rustup-init"
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environment:
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RUSTUP_HOME: "$SNAP_USER_COMMON/rustup"
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apps:
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rustup:
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command: bin/rustup
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SNAP
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for PROXY in $PROXIES; do
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cat >> snap/snapcraft.yaml <<SNAP
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$PROXY:
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command: bin/$PROXY
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SNAP
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done
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mkdir inputs
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cp ../target/"$TARGET"/release/rustup-init inputs/
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ls -l snap/snapcraft.yaml

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