build-test.yml

# This file is part of ICU4X. For terms of use, please see the file
# called LICENSE at the top level of the ICU4X source tree
# (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).

name: Build and Test

# Each of these jobs job maps to a `ci-job-foo` entry in Makefile.toml.
# If adding further CI jobs, please add them as makefile targets as well,
# and list them under `ci-all`.

on:
  push:
    branches: [ main ]
  pull_request:
    branches: '*'
  workflow_dispatch:
    inputs:
      nightly:
        description: "Test on latest nightly"
        required: true
        default: false
        type: boolean
  schedule:
    # Run nightly cronjob CI every day at 14 UTC / 6AM PST / 3PM CET
    - cron:  '0 14 * * *'

concurrency:
  # Allow one run at a time for PRs, but multiple for other invocations
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:

  # ci-job-check & ci-job-features
  # Running at MSRV (1.66)
  msrv:
    runs-on: ubuntu-latest
    # Defined as a matrix so that features can start immediately, but
    # be killed if check fails.
    strategy:
      matrix: 
        behavior: [check, features-1, features-2, features-3]
      fail-fast: true
    # Set CARGO_HTTP_MULTIPLEXING=false to work around crates.io curl bug:
    # <https://rust-lang.zulipchat.com/#narrow/stream/246057-t-cargo/topic/timeout.20investigation>
    env:
      CARGO_HTTP_MULTIPLEXING: false
    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make

    # Cargo-all-features boilerplate
    - name: Get cargo-all-features version
      id: cargo-all-features-version
      run: |
        echo "hash=$(cargo search cargo-all-features | grep '^cargo-all-features =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-all-features
      uses: actions/cache@v3
      id: cargo-all-features-cache
      with:
        path: |
          ~/.cargo/bin/cargo-all-features
          ~/.cargo/bin/cargo-all-features.exe
        key: ${{ runner.os }}-all-features-${{ steps.cargo-all-features-version.outputs.hash }}
    - name: Install cargo-all-features
      if: steps.cargo-all-features-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-all-features

    # No toolchain boilerplate as this runs on MSRV

    # Actual job
    - name: Check
      run: cargo make ci-job-msrv-${{ matrix.behavior }}

  # ci-job-test
  test:
    strategy:
      matrix:
        os: [ ubuntu-latest, macos-latest, windows-latest ]
    runs-on: ${{ matrix.os }}

    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Actual job
    - name: Run `cargo make ci-job-test`
      if: matrix.os != 'windows-latest'
      run: cargo make ci-job-test
    - name: Run `cargo make ci-job-test-windows`
      if: matrix.os == 'windows-latest'
      run: cargo make ci-job-test-windows

  # ci-job-test-tutorials
  test-tutorials:
    runs-on: ubuntu-latest
    strategy:
      matrix: 
        behavior: [local, cratesio]
      fail-fast: true
    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Attempt to load download cache
      uses: actions/cache@v3
      with:
        key: download-cache
        path: /tmp/icu4x-source-cache

    # Actual job
    - name: Run `cargo make ci-job-test-tutorials-${{ matrix.behavior }}`
      run: cargo make ci-job-test-tutorials-${{ matrix.behavior }}

  # ci-job-testdata
  testdata:
    strategy:
      matrix:
        os: [ ubuntu-latest, macos-latest, windows-latest ]
    runs-on: ${{ matrix.os }}

    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make

    # Cargo-all-features boilerplate
    - name: Get cargo-all-features version
      id: cargo-all-features-version
      run: |
        echo "hash=$(cargo search cargo-all-features | grep '^cargo-all-features =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-all-features
      uses: actions/cache@v3
      id: cargo-all-features-cache
      with:
        path: |
          ~/.cargo/bin/cargo-all-features
          ~/.cargo/bin/cargo-all-features.exe
        key: ${{ runner.os }}-all-features-${{ steps.cargo-all-features-version.outputs.hash }}
    - name: Install cargo-all-features
      if: steps.cargo-all-features-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-all-features

    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Attempt to load download cache
      uses: actions/cache@v3
      with:
        key: download-cache
        path: /tmp/icu4x-source-cache

    # Actual job
    - name: Run `cargo make testdata-check`
      run: cargo make testdata-check

    - name: Run `cargo make testdata-legacy`
      run: cargo make testdata-legacy

    # This is too slow for Windows and Mac
    - name: Run `cargo make testdata-legacy-test`
      if: matrix.os == 'ubuntu-latest'
      run: cargo make testdata-legacy-test


  # ci-job-test-docs
  test-docs:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Actual job
    - name: Run `cargo make ci-job-test-docs`
      run: cargo make ci-job-test-docs

  # ci-job-full-datagen
  full-datagen:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Attempt to load download cache
      uses: actions/cache@v3
      with:
        key: download-cache
        path: /tmp/icu4x-source-cache
    - name: Install rustfmt
      run: rustup component add rustfmt

    # Actual job
    - name: Run `cargo make ci-job-full-datagen`
      run: cargo make ci-job-full-datagen

  # ci-job-ffi
  ffi:
    runs-on: ubuntu-latest
    container:
      image: rust:bookworm

    steps:
    - uses: actions/checkout@v3
    
    # Software setup/installation for the container
    - name: Run apt-get update
      run: |
        apt-get update
    - name: Install Clang-15
      run: |
        apt-get install -y clang-15 lld-15 llvm-15-dev libc++-15-dev
    - name: Install GCC 11
      run: |
        apt-get install -y gcc-11 g++-11
    - name: Install Node.js v16.18.0
      uses: actions/setup-node@v3
      with:
        node-version: 16.18.0
        cache: 'npm'
        cache-dependency-path: '**/package-lock.json'
    - name: Install Rust toolchains
      run: |
        rustup toolchain install stable

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        # Since this is inside a container, use a different key than the other jobs
        key: ${{ runner.os }}-make-ffi-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Attempt to load download cache
      uses: actions/cache@v3
      with:
        key: download-cache
        path: /tmp/icu4x-source-cache
    - name: Warm up datagen
      # We do this so its compilation doesn't go on the time bugdet of the 
      # first test that uses it.
      run: cargo build -p icu_datagen

    # Actual job
    - name: Run `cargo make ci-job-ffi`
      run: cargo make ci-job-ffi
      env:
        CXX: "g++-11"

  # ci-job-verify-ffi
  verify-ffi:
    runs-on: [ ubuntu-latest ]
    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Run diplomat-get-rev to ensure it works
      id: diplomat-getrev-check
      run: cargo make --loglevel error diplomat-get-rev
    - name: Get Diplomat version
      id: diplomat-version
      run: |
        echo "::set-output name=rev::$(cargo make --loglevel error diplomat-get-rev |  tr -d '[:space:]')"
      shell: bash
    - name: Attempt to load cached Diplomat
      uses: actions/cache@v3
      id: diplomat-cache
      with:
        path: |
          ~/.cargo/bin/diplomat-tool
          ~/.cargo/bin/diplomat-tool.exe
        key: ${{ runner.os }}-diplomat-${{ steps.diplomat-version.outputs.rev }}

    - name: Install Diplomat (git hash)
      if: steps.diplomat-cache.outputs.cache-hit != 'true' && !contains(steps.diplomat-version.outputs.rev, '.')
      run: cargo +stable install --git https://github.com/rust-diplomat/diplomat.git --rev ${{ steps.diplomat-version.outputs.rev }} diplomat-tool

    - name: Install Diplomat (versioned)
      if: steps.diplomat-cache.outputs.cache-hit != 'true' && contains(steps.diplomat-version.outputs.rev, '.')
      run: cargo +stable install --git https://github.com/rust-diplomat/diplomat.git --version ${{ steps.diplomat-version.outputs.rev }} diplomat-tool

    # Actual job
    - name: Run `cargo make ci-job-verify-ffi`
      run: cargo make ci-job-verify-ffi

  # ci-job-verify-gn, ci-job-gn
  gn:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Attempt to load cached GN Third-Party Tools
      uses: actions/cache@v3
      id: gn-third-party-tools-cache
      with:
        path: |
          ffi/gn/third_party_tools
        key: ${{ runner.os }}-${{ hashFiles('tools/make/gn.toml', 'ffi/gn/Cargo.lock') }}
    - name: Install GN Third-Party Tools
      if: steps.gn-third-party-tools-cache.outputs.cache-hit != 'true'
      run: cargo make gn-install

    - name: Get cargo-rdme version
      id: cargo-readme-version
      run: |
        echo "::set-output name=hash::$(cargo search cargo-rdme | grep '^cargo-rdme =' | md5sum)"
      shell: bash
    - name: Attempt to load cached cargo-rdme
      uses: actions/cache@v3
      id: cargo-rdme-cache
      with:
        path: |
          ~/.cargo/bin/cargo-rdme
          ~/.cargo/bin/cargo-rdme.exe
        key: ${{ runner.os }}-readme-${{ steps.cargo-rdme-version.outputs.hash }}
    - name: Install cargo-rdme
      if: steps.cargo-rdme-cache.outputs.cache-hit != 'true'
      uses: actions-rs/install@v0.1.2
      with:
        crate: cargo-rdme
        version: latest

    # Actual job
    - name: Run `cargo make ci-job-verify-gn`
      run: cargo make ci-job-verify-gn
    - name: Run `cargo make ci-job-gn`
      run: cargo make ci-job-gn

  # ci-job-wasm
  wasm:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Install emsdk
      run: |
        cd ~
        git clone https://github.com/emscripten-core/emsdk.git --branch 2.0.27
        cd emsdk
        ./emsdk install latest
        ./emsdk activate latest
    - name: Install Node.js v16.18.0
      uses: actions/setup-node@v3
      with:
        node-version: 16.18.0
        cache: 'npm'
        cache-dependency-path: '**/package-lock.json'
    # Actual job
    - name: Run emscripten/wasm test
      run: |
        . ~/emsdk/emsdk_env.sh
        cargo make ci-job-wasm

  # ci-job-fmt
  fmt:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Install rustfmt
      run: rustup component add rustfmt

    # Actual job
    - name: Check Format
      run: cargo make ci-job-fmt

  # ci-job-tidy
  tidy:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Get cargo-rdme version
      id: cargo-readme-version
      run: |
        echo "::set-output name=hash::$(cargo search cargo-rdme | grep '^cargo-rdme =' | md5sum)"
      shell: bash
    - name: Attempt to load cached cargo-rdme
      uses: actions/cache@v3
      id: cargo-rdme-cache
      with:
        path: |
          ~/.cargo/bin/cargo-rdme
          ~/.cargo/bin/cargo-rdme.exe
        key: ${{ runner.os }}-readme-${{ steps.cargo-rdme-version.outputs.hash }}
    - name: Install cargo-rdme
      if: steps.cargo-rdme-cache.outputs.cache-hit != 'true'
      uses: actions-rs/install@v0.1.2
      with:
        crate: cargo-rdme
        version: latest

    # Actual job
    - name: Tidy
      run: cargo make ci-job-tidy

  # ci-job-clippy
  clippy:
    # We don't expect to be clippy-clean on nightly cronjob.
    if: ${{ github.event_name != 'schedule' }}

    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make

    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Job-specific dependencies
    - name: Install clippy
      run: rustup component add clippy

    # Actual job
    - name: Run `ci-job-clippy`
      run: cargo make ci-job-clippy

  # ci-job-doc
  doc:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3

    # Cargo-make boilerplate
    - name: Get cargo-make version
      id: cargo-make-version
      run: |
        echo "hash=$(cargo search cargo-make | grep '^cargo-make =' | md5sum)" >> $GITHUB_OUTPUT
      shell: bash
    - name: Attempt to load cached cargo-make
      uses: actions/cache@v3
      id: cargo-make-cache
      with:
        path: |
          ~/.cargo/bin/cargo-make
          ~/.cargo/bin/cargo-make.exe
        key: ${{ runner.os }}-make-${{ steps.cargo-make-version.outputs.hash }}
    - name: Install cargo-make
      if: steps.cargo-make-cache.outputs.cache-hit != 'true'
      run: cargo +stable install cargo-make


    # Toolchain boilerplate
    - name: Potentially override rust version with nightly
      run: cargo make set-nightly-version-for-ci
    - name: Show the selected Rust toolchain
      run: rustup show

    # Actual job
    - name: Cargo doc
      run: cargo make ci-job-doc


  # Notify on slack  
  notify-slack:
    # Skipped tasks: bench-perf, bench-memory, bench-binsize, bench-datasize
    needs: [msrv, test, testdata, test-docs, full-datagen, ffi, verify-ffi, gn, wasm, fmt, tidy, clippy, doc]
    if: ${{ always() && contains(needs.*.result, 'failure') && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && github.ref_name == 'main')) }}
    runs-on: ubuntu-latest
    steps:
      - name: Notify slack of failure
        uses: ravsamhq/notify-slack-action@v1
        with:
          notify_when: failure
          status: failure # We do the filtering earlier
          notification_title: ''
          message_format: ${{ format('{{emoji}} {0} CI failed!' , ((github.event_name == 'schedule') && 'Nightly' || (github.event_name == 'push') && 'Main' || 'Manually dispatched')) }}
          footer: '<{run_url}|View failure> | <https://github.com/unicode-org/icu4x/actions?query=event%3A${{ github.event_name }}|CI history for `${{ github.event_name }}`>'
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}