.github/workflows/icu4j.yml

# Copyright (C) 2016 and later: Unicode, Inc. and others.
# License & terms of use: http://www.unicode.org/copyright.html
#
# GitHub Action configuration script for ICU continuous integration tasks.

name: GHA ICU4J

on:
  push:
    branches:
      - main
      - 'maint/maint*'
    paths:
      - 'icu4j/**'
      - 'testdata/**'
      - '.github/workflows/**'
  pull_request:
    branches: '**'
    paths:
      - 'icu4j/**'
      - 'testdata/**'
      - '.github/workflows/**'
  workflow_dispatch:
    # To trigger the Env Test workflow manually, follow the instructions in
    # https://docs.github.com/en/actions/managing-workflow-runs/manually-running-a-workflow

# For non-release branches (namely: PRs), only run CI on the most recent commit. Cancel
# runs on previous commits mid-flight when new commits are pushed.
# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-only-cancel-in-progress-jobs-on-specific-branches
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ !contains(github.ref, 'maint/') && github.ref != 'main' }}

env:
  SHARED_MVN_ARGS: '--show-version --no-transfer-progress'

permissions:
  contents: read

jobs:

  # Initialize the Maven artifact cache
  #
  # This job is created according to the cache strategy of reuse from a single job:
  # https://github.com/actions/cache/blob/main/caching-strategies.md#make-cache-read-only--reuse-cache-from-centralized-job
  icu4j-mvn-init-cache:
    runs-on: ubuntu-22.04  # Updated in BRS
    steps:
      - name: Checkout and setup
        uses: actions/checkout@v4
        with:
          lfs: true
      - name: Checkout lfs objects
        run: git lfs pull
      - name: Cache local Maven repository
        uses: actions/cache@v4
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
      - uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: '8'
      # Download all of the artifacts needed for the code and build plugins, but
      # exclude any needed by profiles depending on system artifacts
      - name: Download all artifacts
        run: |
          cd icu4j;
          mvn ${SHARED_MVN_ARGS} dependency:go-offline -P '!old_jdk_taglet'

  # ICU4J build and unit test using Maven
  # https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
  icu4j-mvn-build-and-test:
    needs: icu4j-mvn-init-cache
    strategy:
      fail-fast: false
      matrix:
        java-version: [ '8', '11', '17', '21' ]
    runs-on: ubuntu-22.04  # Updated in BRS
    steps:
      - name: Checkout and setup
        uses: actions/checkout@v4
        with:
          lfs: true
      - name: Checkout lfs objects
        run: git lfs pull
      - name: Restore read-only cache of local Maven repository
        uses: actions/cache/restore@v4
        id: cache
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-
      - uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: ${{ matrix.java-version }}
      - name: ICU4J
        run: |
          cd icu4j;
          mvn ${SHARED_MVN_ARGS} verify
      - name: List failures (if any)
        run: |
          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
        if: ${{ failure() }}

  # ICU4J build and unit test under lstm
  lstm-icu4j-build-and-test:
    if: false  # TODO(ICU-22505)
    needs: icu4j-mvn-init-cache
    runs-on: ubuntu-22.04  # Updated in BRS
    steps:
      - name: Checkout and setup
        uses: actions/checkout@v4
        with:
          lfs: true
      - name: Checkout lfs objects
        run: git lfs pull
      - name: Restore read-only cache of local Maven repository
        uses: actions/cache/restore@v4
        id: cache
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-
          lookup-only: true
      - uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: '11'
      - name: Config LSTM and Rebuild data jar
        run: |
          cd icu4c/source;
          ICU_DATA_BUILDTOOL_OPTS=--include_uni_core_data ICU_DATA_FILTER_FILE=../../.github/lstm_for_th_my.json ./runConfigureICU --enable-debug --disable-release Linux -disable-layoutex;
          make clean;
          make -j -l4.5 ICU4J_ROOT=../../../icu4j icu4j-data-install;
          cd ../..
      - name: ICU4J
        run: |
          cd icu4j;
          mvn ${SHARED_MVN_ARGS} verify
      - name: List failures (if any)
        run: |
          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
        if: ${{ failure() }}

  # ICU4J build and unit test under adaboost
  adaboost-icu4j-build-and-test:
    if: false # Temporary disable, until we disable the .jar creation from C and distribute the individual files
    needs: icu4j-mvn-init-cache
    runs-on: ubuntu-22.04  # Updated in BRS
    steps:
      - name: Checkout and setup
        uses: actions/checkout@v4
        with:
          lfs: true
      - name: Checkout lfs objects
        run: git lfs pull
      - name: Restore read-only cache of local Maven repository
        uses: actions/cache/restore@v4
        id: cache
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-
          lookup-only: true
      - uses: actions/setup-java@v4
        with:
          distribution: 'temurin'
          java-version: '11'
      - name: Config Adaboost and Rebuild data jar
        run: |
          cd icu4c/source;
          ICU_DATA_BUILDTOOL_OPTS=--include_uni_core_data ICU_DATA_FILTER_FILE=../../.github/adaboost.json CPPFLAGS=-DUCONFIG_USE_ML_PHRASE_BREAKING=1 ./runConfigureICU --enable-debug --disable-release Linux -disable-layoutex;
          make clean;
          make -j -l4.5 ICU4J_ROOT=../../../icu4j icu4j-data-install;
          cd ../..
      - name: ICU4J
        run: |
          cd icu4j;
          mvn ${SHARED_MVN_ARGS} -Dcom.ibm.icu.impl.breakiter.useMLPhraseBreaking=true verify
      - name: List failures (if any)
        run: |
          cd icu4j && cat `find . -name surefire-reports -type d -exec grep -l  -r --include="*.txt" FAILED {} \;`;
        if: ${{ failure() }}