toast.yml

image: ubuntu:24.04
default: build
user: user
command_prefix: |
  # Make not silently ignore errors.
  set -euo pipefail

  # Load the Rust startup file, if it exists.
  if [ -f "$HOME/.cargo/env" ]; then
    . "$HOME/.cargo/env"
  fi

  # Use this wrapper for `cargo` if network access is needed.
  cargo-online () { cargo --locked "$@"; }

  # Use this wrapper for `cargo` unless network access is needed.
  cargo-offline () { cargo --frozen --offline "$@"; }

  # Use this wrapper for formatting code or checking that code is formatted. We use a nightly Rust
  # version for the `trailing_comma` formatting option [tag:rust_fmt_nightly_2024-09-06]. The
  # nightly version was chosen as the latest available release with all components present
  # according to this page:
  #   https://rust-lang.github.io/rustup-components-history/x86_64-unknown-linux-gnu.html
  cargo-fmt () { cargo +nightly-2024-09-06 --frozen --offline fmt --all -- "$@"; }

  # Load the NVM startup file, if it exists.
  if [ -f "$HOME/.nvm/nvm.sh" ]; then
    export NVM_DIR="$HOME/.nvm"
    . "$HOME/.nvm/nvm.sh"
  fi

  # Make Bash log commands.
  set -x
tasks:
  install_packages:
    description: Install system packages.
    user: root
    command: |
      # Install the following packages:
      #
      # - build-essential       - Used to link some crates
      # - curl                  - Used for installing Tagref and Rust
      # - gcc-aarch64-linux-gnu - Used for linking the binary for AArch64
      # - gcc-x86-64-linux-gnu  - Used for linking the binary for x86-64
      # - ripgrep               - Used for various linting tasks
      # - shellcheck            - Used for linting shell scripts
      apt-get update
      apt-get install --yes \
        build-essential \
        curl \
        gcc-aarch64-linux-gnu \
        gcc-x86-64-linux-gnu \
        ripgrep \
        shellcheck

  install_tagref:
    description: Install Tagref, a reference checking tool.
    dependencies:
      - install_packages
    user: root
    command: |
      # Install Tagref using the official installer script.
      curl https://raw.githubusercontent.com/stepchowfun/tagref/main/install.sh -LSfs | sh

  create_user:
    description: Create a user who doesn't have root privileges.
    user: root
    command: |
      # Create a user named `user` with a home directory and with Bash as the login shell.
      useradd user --create-home --shell /bin/bash

  install_rust:
    description: Install Rust, a systems programming language.
    dependencies:
      - install_packages
      - create_user
    command: |
      # Install stable Rust [tag:rust_1.81.0].
      curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- \
        -y \
        --default-toolchain 1.81.0 \
        --profile minimal \
        --component clippy

      # Add Rust tools to `$PATH`.
      . "$HOME/.cargo/env"

      # Install nightly Rust [ref:rust_fmt_nightly_2024-09-06].
      rustup toolchain install nightly-2024-09-06 --profile minimal --component rustfmt

  install_node:
    description: Install Node.js, a JavaScript runtime environment.
    dependencies:
      - install_packages
      - create_user
    command: |
      # Install Node.js.
      curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.7/install.sh | bash
      export NVM_DIR="$HOME/.nvm"
      . "$NVM_DIR/nvm.sh"
      nvm install 18.17.0

  install_tools:
    description: Install the tools needed to build and validate the program.
    dependencies:
      - install_node
      - install_rust
      - install_tagref

  fetch_crates:
    description: Download and build Rust packages used by the program.
    dependencies:
      - install_tools
    input_paths:
      - Cargo.lock
      - Cargo.toml
    command: |
      # Create a "hello world" project with the dependencies we want to fetch.
      mv Cargo.lock Cargo.lock.og
      mv Cargo.toml Cargo.toml.og
      cargo-offline init --vcs none
      mv Cargo.lock.og Cargo.lock
      mv Cargo.toml.og Cargo.toml

      # Ask Cargo to build the project in order to fetch the dependencies.
      cargo-online build
      cargo-online build --release
      cargo-online clippy --all-features --all-targets --workspace

      # Delete the build artifacts.
      cargo-offline clean --package typical
      cargo-offline clean --release --package typical

      # Delete the "hello world" code.
      rm -rf src

  repository:
    description: Import the repository.
    dependencies:
      - fetch_crates
    input_paths:
      - .
    excluded_input_paths:
      - .git

      # [tag:excluded_input_paths] Keep this in sync with [file:.gitignore].
      - artifacts
      - examples/rust/target
      - examples/typescript/dist
      - examples/typescript/generated
      - examples/typescript/node_modules
      - benchmarks/rust/target
      - benchmarks/typescript/dist
      - benchmarks/typescript/generated
      - benchmarks/typescript/node_modules
      - integration_tests/rust/target
      - integration_tests/typescript_node/dist
      - integration_tests/typescript_node/generated
      - integration_tests/typescript_node/node_modules
      - integration_tests/typescript_web/dist
      - integration_tests/typescript_web/generated
      - integration_tests/typescript_web/node_modules
      - target/

  build:
    description: Build the binary in non-release mode.
    dependencies:
      - repository
    command: |
      # Build the project with Cargo.
      cargo-offline build

  test_units:
    description: Run the unit test suite.
    dependencies:
      - repository
    command: |
      # Run the tests with Cargo. The `NO_COLOR` variable is used to disable colored output for
      # tests that make assertions regarding the output [tag:colorless_tests].
      NO_COLOR=true cargo-offline test

  test_rust_integration:
    description: Run integration tests for the Rust code generator.
    dependencies:
      - build
    command: |
      # Add Typical to `$PATH`.
      export PATH="$PWD/target/debug:$PATH"

      # Validate and run the example project and the integration test.
      for SCENARIO in benchmarks/rust examples/rust integration_tests/rust; do
        echo "Validating $SCENARIO..."
        (
          cd "$SCENARIO" && \
          cargo-offline check && \
          cargo-offline clippy --all-features --all-targets --workspace && \
          cargo-fmt --check && \
          cargo-offline run
        )
      done

      # Validate the data from the integration test.
      cmp test_data/omnifile /tmp/omnifile-rust

  test_typescript_integration:
    description: Run integration tests for the TypeScript code generator.
    dependencies:
      - build
    command: |
      # Add Typical to `$PATH`.
      export PATH="$PWD/target/debug:$PATH"

      # Validate and run the example project and the integration test.
      for SCENARIO in \
        benchmarks/typescript \
        examples/typescript \
        integration_tests/typescript_node \
        integration_tests/typescript_web
      do
        echo "Validating $SCENARIO..."
        (cd "$SCENARIO" && npm ci && npm run main && npm run lint)
      done

      # Validate the data from the integration test.
      cmp test_data/omnifile /tmp/omnifile-typescript

  lint:
    description: Run the linters.
    dependencies:
      - build
    command: |
      # Add Typical to `$PATH`.
      export PATH="$PWD/target/debug:$PATH"

      # Check references with Tagref.
      tagref

      # Lint shell files with ShellCheck.
      find . -type f -name '*.sh' | xargs shellcheck

      # Check the formatting of the schemas with Typical.
      typical format --check benchmarks/types.t
      typical format --check examples/rust/types.t
      typical format --check examples/typescript/types.t
      typical format --check integration_tests/types/types.t

      # Lint the Rust projects.
      for PROJECT_PATH in . benchmarks/rust examples/rust integration_tests/rust; do
        (
          cd "$PROJECT_PATH" &&

          # Lint the code with Clippy.
          cargo-offline clippy --all-features --all-targets --workspace &&

          # Check code formatting with Rustfmt. See [ref:format_macros] for an explanation of the
          # `rg` commands.
          rg --type rust --files-with-matches '' src | xargs sed -i 's/!(/_(/g' &&
          rg --type rust --files-with-matches '' src | xargs sed -i 's/^\([^ (]*\)_(/\1!(/g' &&
          if ! cargo-fmt --check; then
            echo 'ERROR: Please correct the formatting errors above.' 1>&2
            exit 1
          fi &&
          rg --type rust --files-with-matches '' src | xargs sed -i 's/_(/!(/g'

          # Forbid unconsolidated `use` declarations.
          if rg --line-number --type rust --multiline \
            '}[[:space]]*;[[:space:]]*\n[[:space:]]*use' \
            src
          then
            echo 'Please consolidate these `use` declarations.' >&2
            exit 1
          fi

          # Enforce that lines span no more than 100 columns.
          if rg --line-number --type rust '.{101}' src; then
            echo 'There are lines spanning more than 100 columns.' >&2
            exit 1
          fi
        )
      done

      # Lint the TypeScript projects.
      for PROJECT_PATH in \
        benchmarks/typescript \
        examples/typescript \
        integration_tests/typescript_node \
        integration_tests/typescript_web
      do
        (
          cd "$PROJECT_PATH" &&
          npm ci &&
          npm run lint
        )
      done

  run:
    description: Run the program.
    dependencies:
      - build
    command: |
      # Run the program with Cargo.
      cargo-offline run -- --help

  format:
    description: Format the source code.
    dependencies:
      - build
    output_paths:
      - benchmarks/rust/src
      - benchmarks/types.t
      - benchmarks/typescript/src
      - examples/rust/src
      - examples/rust/types.t
      - examples/typescript/src
      - examples/typescript/types.t
      - integration_tests/rust/src
      - integration_tests/types
      - integration_tests/typescript_node/src
      - integration_tests/typescript_web/src
      - src
    command: |
      # Add Typical to `$PATH`.
      export PATH="$PWD/target/debug:$PATH"

      # Format the schemas with Typical.
      typical format benchmarks/types.t
      typical format examples/rust/types.t
      typical format examples/typescript/types.t # Or `npm run format` in [dir:examples/typescript]
      typical format integration_tests/types/types.t

      # Format the Rust projects.
      for PROJECT_PATH in . benchmarks/rust examples/rust integration_tests/rust; do
        (
          cd "$PROJECT_PATH" &&

          # We temporarily convert macro invocations into function calls so Rustfmt's
          # `trailing_comma` feature applies to macro arguments [tag:format_macros].
          rg --type rust --files-with-matches '' src | xargs sed -i 's/!(/_(/g' &&
          rg --type rust --files-with-matches '' src | xargs sed -i 's/^\([^ (]*\)_(/\1!(/g' &&
          cargo-fmt &&
          rg --type rust --files-with-matches '' src | xargs sed -i 's/_(/!(/g'
        )
      done

      # Format the TypeScript projects.
      for PROJECT_PATH in \
        benchmarks/typescript \
        examples/typescript \
        integration_tests/typescript_node \
        integration_tests/typescript_web
      do
        (cd "$PROJECT_PATH" && npm ci && npm run format)
      done

  release:
    description: Build and output the release binaries for Linux.
    dependencies:
      - fetch_crates
    input_paths:
      - src
    output_paths:
      - artifacts
    command: |
      # Add the targets.
      rustup target add x86_64-unknown-linux-gnu
      rustup target add x86_64-unknown-linux-musl
      rustup target add aarch64-unknown-linux-gnu
      rustup target add aarch64-unknown-linux-musl

      # Set the linkers.
      export CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER=x86_64-linux-gnu-gcc
      export CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_LINKER=x86_64-linux-gnu-gcc
      export CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc
      export CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER=aarch64-linux-gnu-gcc

      # Build the project with Cargo for each Linux target.
      cargo-online build --release --target x86_64-unknown-linux-gnu
      cargo-online build --release --target x86_64-unknown-linux-musl
      cargo-online build --release --target aarch64-unknown-linux-gnu
      cargo-online build --release --target aarch64-unknown-linux-musl

      # Move the binaries to a more conveniennt location for exporting.
      mkdir artifacts
      cp \
        target/x86_64-unknown-linux-gnu/release/typical \
        artifacts/typical-x86_64-unknown-linux-gnu
      cp \
        target/x86_64-unknown-linux-musl/release/typical \
        artifacts/typical-x86_64-unknown-linux-musl
      cp \
        target/aarch64-unknown-linux-gnu/release/typical \
        artifacts/typical-aarch64-unknown-linux-gnu
      cp \
        target/aarch64-unknown-linux-musl/release/typical \
        artifacts/typical-aarch64-unknown-linux-musl

  publish:
    description: Publish the crate to crates.io.
    dependencies:
      - fetch_crates
    environment:
      CRATES_IO_TOKEN: null
    input_paths:
      - README.md
      - src
    command: |
      # Fetch the program version.
      VERSION="$(cargo-offline pkgid | grep --extended-regexp --only-matching '[0-9.]+$')"

      # If this version of the package already exists on crates.io, there's nothing more to do.
      if cargo-online search typical | grep "typical = \"$VERSION\"" > /dev/null; then
        echo "Version $VERSION of crate already exists."
        exit
      fi

      # Publish to crates.io.
      cargo-online publish --token "$CRATES_IO_TOKEN"