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CI: Add GitHub Action to archive PR toolchains
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‎.github/workflows/archive-pr-toolchain.yml‎

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name: Archive PR Toolchain
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on:
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workflow_dispatch:
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inputs:
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pr-url:
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required: true
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type: string
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description: "swiftlang/swift PR URL (e.g. https://github.com/swiftlang/swift/pull/86624)"
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permissions:
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contents: write
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jobs:
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archive:
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runs-on: ubuntu-latest
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env:
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GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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steps:
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- name: Resolve PR number and Jenkins builds
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run: |
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set -euo pipefail
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pr_url="${{ inputs.pr-url }}"
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if [[ "$pr_url" =~ ^https://github.com/swiftlang/swift/pull/([0-9]+)(/.*)?$ ]]; then
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pr_number="${BASH_REMATCH[1]}"
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else
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echo "Input must be a swiftlang/swift PR URL, got: $pr_url" >&2
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exit 1
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fi
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pr_payload="$(gh api "/repos/swiftlang/swift/pulls/${pr_number}")"
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statuses_url="$(echo "$pr_payload" | jq -r '._links.statuses.href')"
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merge_commit_sha="$(echo "$pr_payload" | jq -r '.merge_commit_sha')"
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gh api "${statuses_url}?per_page=100" > /tmp/statuses.json
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macos_url="$(jq -r '.[] | select(.target_url != null) | .target_url | select(test("ci\\.swift\\.org/.*/swift-PR-toolchain-[Mm]acos"))' /tmp/statuses.json | head -n1)"
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linux_url="$(jq -r '.[] | select(.target_url != null) | .target_url | select(test("ci\\.swift\\.org/.*/swift-PR-toolchain-Linux"))' /tmp/statuses.json | head -n1)"
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if [[ -z "$macos_url" ]]; then
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echo "No Jenkins macOS PR toolchain status found for PR #${pr_number}" >&2
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jq -r '.[].target_url // empty' /tmp/statuses.json >&2
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exit 1
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fi
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if [[ -z "$linux_url" ]]; then
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echo "No Jenkins Linux PR toolchain status found for PR #${pr_number}" >&2
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jq -r '.[].target_url // empty' /tmp/statuses.json >&2
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exit 1
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fi
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macos_build="$(echo "$macos_url" | sed -n 's#.*/swift-PR-toolchain-[^/]*/\([0-9]\+\)/.*#\1#p')"
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linux_build="$(echo "$linux_url" | sed -n 's#.*/swift-PR-toolchain-[^/]*/\([0-9]\+\)/.*#\1#p')"
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if [[ -z "$macos_build" ]]; then
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echo "Failed to extract macOS Jenkins build number from ${macos_url}" >&2
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exit 1
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fi
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if [[ -z "$linux_build" ]]; then
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echo "Failed to extract Linux Jenkins build number from ${linux_url}" >&2
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exit 1
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fi
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{
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echo "PR_NUMBER=${pr_number}"
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echo "JENKINS_BUILD_MACOS=${macos_build}"
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echo "JENKINS_BUILD_LINUX=${linux_build}"
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echo "STATUSES_URL=${statuses_url}"
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echo "MERGE_COMMIT_SHA=${merge_commit_sha}"
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} >> "$GITHUB_ENV"
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- name: Download toolchain artifacts
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run: |
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set -euo pipefail
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mkdir -p artifacts/downloads
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macos_url="https://download.swift.org/tmp/pull-request/${PR_NUMBER}/${JENKINS_BUILD_MACOS}/xcode/swift-PR-${PR_NUMBER}-${JENKINS_BUILD_MACOS}-osx.tar.gz"
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ubuntu_url="https://download.swift.org/tmp/pull-request/${PR_NUMBER}/${JENKINS_BUILD_LINUX}/ubuntu2204/PR-ubuntu2204.tar.gz"
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echo "Fetching macOS toolchain from ${macos_url}"
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curl -fL --retry 5 --retry-delay 10 "$macos_url" -o artifacts/downloads/macos.tar.gz
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echo "Fetching Ubuntu toolchain from ${ubuntu_url}"
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curl -fL --retry 5 --retry-delay 10 "$ubuntu_url" -o artifacts/downloads/ubuntu2204.tar.gz
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- name: Repackage macOS toolchain
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run: |
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set -euo pipefail
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workdir="$(mktemp -d)"
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trap 'rm -rf "$workdir"' EXIT
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tar -xf artifacts/downloads/macos.tar.gz -C "$workdir"
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toolchain_dir="$workdir/Library/Developer/Toolchains/swift-PR-${PR_NUMBER}-${JENKINS_BUILD_MACOS}.xctoolchain"
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if [[ ! -d "$toolchain_dir" ]]; then
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echo "Expected toolchain not found at ${toolchain_dir}" >&2
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echo "Available entries:" >&2
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find "$workdir" -maxdepth 3 -type d >&2
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exit 1
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fi
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mkdir -p artifacts
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tar -czf "artifacts/swift-PR-${PR_NUMBER}-${JENKINS_BUILD_MACOS}-osx.tar.gz" -C "$(dirname "$toolchain_dir")" "$(basename "$toolchain_dir")"
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- name: Repackage Ubuntu toolchain
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run: |
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set -euo pipefail
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workdir="$(mktemp -d)"
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trap 'rm -rf "$workdir"' EXIT
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extracted="$workdir/extracted"
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tagged="$workdir/tagged"
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mkdir -p "$extracted" "$tagged"
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tar -xf artifacts/downloads/ubuntu2204.tar.gz -C "$extracted"
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tag="swift-PR-${PR_NUMBER}-${JENKINS_BUILD_LINUX}"
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# Mimic repackage-pr-toolchain.rb: move all extracted entries under the tag name before archiving.
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mkdir -p "$tagged/$tag"
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shopt -s dotglob
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for entry in "$extracted"/*; do
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mv "$entry" "$tagged/$tag/"
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done
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tar -czf "artifacts/${tag}-ubuntu2204.tar.gz" -C "$tagged" "$tag"
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- name: Publish release assets to swiftwasm/swift
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run: |
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set -euo pipefail
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release_tag="swift-pr-${PR_NUMBER}-${MERGE_COMMIT_SHA}"
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release_title="Swift PR #${PR_NUMBER} merge ${MERGE_COMMIT_SHA}"
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release_notes=$(cat <<'EOF'
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Archived toolchain from swiftlang/swift Jenkins PR build.
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EOF
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)
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if ! gh release view "$release_tag" --repo swiftwasm/swift >/dev/null 2>&1; then
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gh release create "$release_tag" \
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--target "$MERGE_COMMIT_SHA" \
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--repo swiftwasm/swift \
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--title "$release_title" \
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--notes "$release_notes"
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fi
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gh release upload "$release_tag" \
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artifacts/swift-PR-${PR_NUMBER}-${JENKINS_BUILD_MACOS}-osx.tar.gz \
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artifacts/swift-PR-${PR_NUMBER}-${JENKINS_BUILD_LINUX}-ubuntu2204.tar.gz \
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--repo swiftwasm/swift \
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--clobber
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- name: Summarize
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run: |
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{
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echo "Archived Swift PR #${PR_NUMBER} on merge commit ${MERGE_COMMIT_SHA} (Jenkins builds: macOS ${JENKINS_BUILD_MACOS}, Linux ${JENKINS_BUILD_LINUX})."
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echo ""
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echo "Artifacts:"
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echo "- swift-PR-${PR_NUMBER}-${JENKINS_BUILD_MACOS}-osx.tar.gz"
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echo "- swift-PR-${PR_NUMBER}-${JENKINS_BUILD_LINUX}-ubuntu2204.tar.gz"
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echo ""
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echo "Release tag: swift-pr-${PR_NUMBER}-${MERGE_COMMIT_SHA}"
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echo "Statuses source: ${STATUSES_URL}"
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} >> "$GITHUB_STEP_SUMMARY"

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