cacher $VERSION

# Publish a linux-amd64 binary on every tag push. Two destinations:
#
#   1. Build artifact (cacher-linux-amd64 visible on the job page,
#      pruned by builds.sr.ht after 90 days).
#
#   2. pages.sr.ht under cacher.srht.bigb.es so downstream projects
#      can `wget https://cacher.srht.bigb.es/cacher-linux-amd64` with
#      a stable URL. The latest tag overwrites the previous publish;
#      historical versions remain available via the artifact link
#      during the 90-day window.
#
# Auto-submission is restricted to tag refs only.
image: ubuntu/noble
packages:
  - curl
  - ca-certificates
oauth: pages.sr.ht/PAGES:RW
sources:
  - https://git.srht.bigb.es/~bigbes/ci-cacher
environment:
  GO_VERSION: "1.26.3"
  PATH: /home/build/.local/go/bin:/home/build/.local/bin:/home/build/go/bin:/usr/local/bin:/usr/bin:/bin
  GOPATH: /home/build/go
  PAGES_DOMAIN: cacher.srht.bigb.es
submitter:
  git.sr.ht:
    enabled: true
    allow-refs:
      - "refs/tags/*"
tasks:
  - install_go: |
      GO_TARBALL="go${GO_VERSION}.linux-amd64.tar.gz"
      mkdir -p ~/.local
      curl -sSL "https://go.dev/dl/$GO_TARBALL" -o "/tmp/$GO_TARBALL"
      tar -xz -C ~/.local -f "/tmp/$GO_TARBALL"
      rm "/tmp/$GO_TARBALL"
      go version
  - install_hut: |
      # hut isn't in ubuntu/noble's repos; build it from source with the
      # Go we just installed. ~5s on a warm GOPATH, ~30s cold.
      go install git.sr.ht/~xenrox/hut@latest
      hut --version
  - build: |
      cd ci-cacher
      VERSION=$(git describe --tags --abbrev=0 2>/dev/null || cat VERSION)
      echo "Building $VERSION"
      GOOS=linux GOARCH=amd64 CGO_ENABLED=0 \
        go build -ldflags "-s -w -X go.bigb.es/cacher/internal/version.version=${VERSION}" \
        -o /home/build/cacher-linux-amd64 .
      /home/build/cacher-linux-amd64 version
      sha256sum /home/build/cacher-linux-amd64
  - package_pages: |
      # pages.sr.ht expects a tarball whose top-level contents become the
      # site root — so `tar -C dist .`, not `tar dist/`. The binary lands
      # at https://$PAGES_DOMAIN/cacher-linux-amd64. A minimal index.html
      # makes the root URL informative instead of a 404.
      VERSION=$(cd ci-cacher && (git describe --tags --abbrev=0 2>/dev/null || cat VERSION))
      SUM=$(sha256sum /home/build/cacher-linux-amd64 | awk '{print $1}')
      mkdir -p /home/build/dist
      cp /home/build/cacher-linux-amd64 /home/build/dist/cacher-linux-amd64
      cat > /home/build/dist/index.html <<EOF
      <!doctype html><meta charset="utf-8"><title>cacher</title>
      <h1>cacher $VERSION</h1>
      <p>S3-backed CI cache helper. <a href="https://git.srht.bigb.es/~bigbes/ci-cacher">Source</a>.</p>
      <pre>wget https://$PAGES_DOMAIN/cacher-linux-amd64
      sha256sum cacher-linux-amd64  # expect: $SUM</pre>
      EOF
      cd /home/build/dist
      tar -czvf /home/build/site.tar.gz .
  - publish_pages: |
      hut pages publish -d "$PAGES_DOMAIN" /home/build/site.tar.gz
artifacts:
  - cacher-linux-amd64