hjkl-buffer 0.3.1

name: Release

on:
  push:
    tags:
      - 'v*'
  # Manual re-trigger: publish step is idempotent (skips when the
  # version already exists on crates.io), so re-running after a
  # partial failure is safe.
  workflow_dispatch:

env:
  CARGO_TERM_COLOR: always

concurrency:
  group: release-${{ github.ref }}
  cancel-in-progress: false

jobs:
  publish:
    name: Publish to crates.io
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - name: Verify tag matches Cargo.toml version
        shell: bash
        run: |
          CARGO_VER=$(awk -F'"' '/^version[[:space:]]*=/ {print $2; exit}' Cargo.toml)
          if [ "v$CARGO_VER" != "$GITHUB_REF_NAME" ]; then
            echo "::error::tag $GITHUB_REF_NAME does not match Cargo.toml version v$CARGO_VER"
            exit 1
          fi

      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2

      - name: Publish to crates.io (idempotent)
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
        shell: bash
        run: |
          set -euo pipefail
          CRATE=$(awk -F'"' '/^name[[:space:]]*=/ {print $2; exit}' Cargo.toml)
          VERSION=$(awk -F'"' '/^version[[:space:]]*=/ {print $2; exit}' Cargo.toml)
          URL="https://crates.io/api/v1/crates/${CRATE}/${VERSION}"
          if curl -fsS -A "${CRATE}-release-ci" -o /dev/null "$URL"; then
            echo "::notice::${CRATE}@${VERSION} already on crates.io, skipping"
            exit 0
          fi
          cargo publish