release.yml

# SPDX-License-Identifier: PMPL-1.0-or-later
# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
#
# Release workflow — triggered by version tags (v*).
# Builds release binary for Linux x86_64, generates changelog via git-cliff,
# creates a GitHub Release with the binary attached, and produces SLSA provenance.
name: Release

on:
  push:
    tags:
      - 'v*'

permissions: read-all

jobs:
  build:
    name: Build Release Binary
    runs-on: ubuntu-latest
    permissions:
      contents: read
    outputs:
      hashes: ${{ steps.hash.outputs.hashes }}
    steps:
      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5

      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@4be9e76fd7c4901c61fb841f559994984270fce7 # stable
        with:
          toolchain: stable

      - name: Cache cargo registry
        uses: Swatinem/rust-cache@779680da715d629ac1d338a641029a2f4372abb5 # v2

      - name: Run tests
        run: cargo test --verbose

      - name: Build release binary
        run: cargo build --release --verbose

      - name: Build release binary with http feature
        run: cargo build --release --features http --verbose

      - name: Package release artifacts
        run: |
          mkdir -p dist
          cp target/release/panic-attack dist/panic-attack-linux-x86_64
          strip dist/panic-attack-linux-x86_64
          chmod +x dist/panic-attack-linux-x86_64
          # Create tarball
          tar -czf dist/panic-attack-${GITHUB_REF_NAME}-linux-x86_64.tar.gz \
            -C dist panic-attack-linux-x86_64 \
            -C "${GITHUB_WORKSPACE}" LICENSE README.md ROADMAP.md SECURITY.md

      - name: Generate artifact hashes
        id: hash
        run: |
          cd dist
          HASHES=$(sha256sum panic-attack-*.tar.gz | base64 -w0)
          echo "hashes=$HASHES" >> "$GITHUB_OUTPUT"

      - name: Upload build artifacts
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: release-artifacts
          path: dist/panic-attack-*.tar.gz
          retention-days: 5

  changelog:
    name: Generate Changelog
    runs-on: ubuntu-latest
    permissions:
      contents: read
    outputs:
      changelog: ${{ steps.cliff.outputs.content }}
      version: ${{ steps.version.outputs.version }}
    steps:
      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
        with:
          fetch-depth: 0

      - name: Extract version from tag
        id: version
        run: echo "version=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - name: Install git-cliff
        run: |
          curl -sSfL https://github.com/orhun/git-cliff/releases/latest/download/git-cliff-$(uname -m)-unknown-linux-gnu.tar.gz \
            | tar -xz --strip-components=1 -C /usr/local/bin/ git-cliff-*/git-cliff

      - name: Generate changelog for this release
        id: cliff
        run: |
          CHANGELOG=$(git cliff --latest --strip header)
          {
            echo "content<<CLIFF_EOF"
            echo "$CHANGELOG"
            echo "CLIFF_EOF"
          } >> "$GITHUB_OUTPUT"

      - name: Update full CHANGELOG.md
        run: |
          git cliff --output CHANGELOG.md

      - name: Upload updated CHANGELOG.md
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: changelog
          path: CHANGELOG.md
          retention-days: 5

  release:
    name: Create GitHub Release
    needs: [build, changelog]
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5

      - name: Download build artifacts
        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
        with:
          name: release-artifacts
          path: artifacts/

      - name: Create GitHub Release
        uses: softprops/action-gh-release@a06a81a03ee405af7f2048a818ed3f03bbf83c7b # v2
        with:
          body: ${{ needs.changelog.outputs.changelog }}
          draft: false
          prerelease: ${{ contains(github.ref_name, '-rc') || contains(github.ref_name, '-beta') || contains(github.ref_name, '-alpha') }}
          generate_release_notes: false
          files: |
            artifacts/*
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  provenance:
    name: SLSA Provenance
    needs: [build]
    permissions:
      actions: read
      id-token: write
      contents: write
    uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@f7dd8c54c2067bafc12ca7a55595d5ee9b75204a # v2.1.0
    with:
      base64-subjects: ${{ needs.build.outputs.hashes }}