Taskfile.yml

# https://taskfile.dev

version: "3"

vars:
  PROJECT_NAME: policy-zig
  BUILD_DIR: zig-out

tasks:
  default:
    desc: "Build the project in debug mode"
    aliases: [b]
    cmds:
      - zig build

  build:
    desc: "Build the project with specified optimization"
    aliases: [build-opt]
    cmds:
      - zig build -Doptimize={{.OPTIMIZE | default "Debug"}}

  build:protos:
    desc: "Build the project with protos"
    cmds:
      - zig build -Dgen-proto=true gen-proto

  build:release:
    desc: "Build the project in release mode (ReleaseFast)"
    aliases: [br, release]
    cmds:
      - zig build -Doptimize=ReleaseFast

  build:safe:
    desc: "Build the project in ReleaseSafe mode"
    aliases: [bs]
    cmds:
      - zig build -Doptimize=ReleaseSafe

  build:small:
    desc: "Build the project in ReleaseSmall mode"
    aliases: [bsm]
    cmds:
      - zig build -Doptimize=ReleaseSmall

  bench:
    desc: "Run benchmarks (log/metric/trace × policy counts)"
    cmds:
      - zig build bench

  test:
    desc: "Run all tests"
    aliases: [t]
    cmds:
      - zig build test -Doptimize=ReleaseSafe

  test:file:
    desc: "Run tests for a specific file"
    aliases: [tf]
    cmds:
      - |
        if [ -z "{{.FILE}}" ]; then
          echo "Usage: task test:file FILE=<path>"
          echo "Example: task test:file FILE=src/parser.zig"
          exit 1
        fi
        zig test {{.FILE}}

  test:summary:
    desc: "Run tests with summary output"
    aliases: [ts]
    cmds:
      - zig build test --summary all

  format:
    desc: "Format all Zig source files"
    aliases: [fmt, f]
    dir: "{{.TASKFILE_DIR}}"
    cmds:
      - zig fmt src/
      - zig fmt build.zig

  format:check:
    desc: "Check if code is formatted correctly"
    aliases: [fmt-check, fc]
    dir: "{{.TASKFILE_DIR}}"
    cmds:
      - zig fmt --check src/
      - zig fmt --check build.zig

  lint:
    desc: "Run linting checks"
    aliases: [l]
    cmds:
      - task: format:check
      - task: lint:zig

  lint:zig:
    desc: "Run ziglint on handwritten Zig files before merge"
    aliases: [zl]
    dir: "{{.TASKFILE_DIR}}"
    cmds:
      - |
        if ! command -v ziglint >/dev/null 2>&1; then
          echo "ziglint is required before merge. Install it or add it to PATH."
          exit 1
        fi
        ziglint

  clean:
    desc: "Clean build artifacts"
    aliases: [c]
    cmds:
      - rm -rf zig-out/
      - rm -rf zig-cache/
      - rm -rf .zig-cache/

  check:
    desc: "Check the project (build without running)"
    cmds:
      - zig build --summary failures

  deps:
    desc: "Check dependencies and Zig installation"
    cmds:
      - zig version
      - zig env

  do:
    desc: "Run all pre-commit checks"
    cmds:
      - task: format
      - task: lint
      - task: test

  signoff:
    desc: "Sign off the codebase"
    aliases: ["sign", "s"]
    cmds:
      - task: do
      - task: build:safe
      - gh signoff

  info:
    desc: "Show project information"
    cmds:
      - echo "Project {{.PROJECT_NAME}}"
      - echo "Build directory {{.BUILD_DIR}}"
      - zig version
      - echo ""
      - echo "Available build modes:"
      - echo "  - Debug (default)"
      - echo "  - ReleaseFast (task build:release)"
      - echo "  - ReleaseSafe (task build:safe)"
      - echo "  - ReleaseSmall (task build:small)"

  update:protos:
    desc: "Update proto files"
    cmds:
      - buf export buf.build/tero/policy -o proto
      - buf export buf.build/opentelemetry/opentelemetry -o proto
      - task: build:protos

  # =============================================================================
  # CI Setup
  # =============================================================================

  ci:setup:
    desc: "Install CI/development dependencies (idempotent, safe to run locally)"
    dir: "{{.TASKFILE_DIR}}"
    cmds:
      - |
        echo "Checking for required dependencies..."

        # Check for hyperscan/vectorscan
        if ! pkg-config --exists libhs 2>/dev/null; then
          echo "Installing hyperscan..."
          if [ "$(uname)" = "Darwin" ]; then
            if command -v brew >/dev/null 2>&1; then
              brew install vectorscan pkg-config
            else
              echo "Homebrew not found. Install vectorscan manually or use Hermit."
            fi
          elif [ "$(uname)" = "Linux" ]; then
            if command -v apt-get >/dev/null 2>&1; then
              sudo apt-get update && sudo apt-get install -y libhyperscan-dev pkg-config
            elif command -v yum >/dev/null 2>&1; then
              sudo yum install -y hyperscan-devel pkg-config
            else
              echo "Unknown package manager. Install hyperscan manually."
            fi
          else
            echo "Unknown platform: $(uname)"
          fi
        else
          echo "Hyperscan already installed"
        fi

        # Check for ziglint (required by `task lint:zig`, which `signoff` runs).
        # Installed from prebuilt release binaries; pinned for reproducibility.
        if ! command -v ziglint >/dev/null 2>&1; then
          ZIGLINT_VERSION="v0.5.2"
          case "$(uname -s)" in
            Darwin) zl_os="macos" ;;
            Linux)  zl_os="linux" ;;
            *) zl_os="" ;;
          esac
          case "$(uname -m)" in
            arm64|aarch64) zl_arch="aarch64" ;;
            x86_64|amd64)  zl_arch="x86_64" ;;
            *) zl_arch="" ;;
          esac
          if [ -z "$zl_os" ] || [ -z "$zl_arch" ]; then
            echo "Unknown platform $(uname -s)/$(uname -m). Install ziglint manually from https://github.com/rockorager/ziglint"
          else
            echo "Installing ziglint ${ZIGLINT_VERSION} (${zl_arch}-${zl_os})..."
            zl_asset="ziglint-${zl_arch}-${zl_os}.tar.gz"
            zl_url="https://github.com/rockorager/ziglint/releases/download/${ZIGLINT_VERSION}/${zl_asset}"
            zl_tmp="$(mktemp -d)"
            if curl -fsSL "$zl_url" -o "$zl_tmp/ziglint.tar.gz"; then
              tar -xzf "$zl_tmp/ziglint.tar.gz" -C "$zl_tmp"
              if [ -w /usr/local/bin ]; then zl_sudo=""; else zl_sudo="sudo"; fi
              $zl_sudo install -m 0755 "$zl_tmp/ziglint" /usr/local/bin/ziglint
              echo "ziglint installed: $(ziglint --version)"
            else
              echo "Failed to download ziglint from $zl_url"
            fi
            rm -rf "$zl_tmp"
          fi
        else
          echo "ziglint already installed"
        fi

        echo "CI setup complete"