ICU-22522 Update the Azure CI from Clang 14 to Clang 16 #5364

Workflow file for this run

	# 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 CI

	on:
	push:
	branches:
	- main
	- 'maint/maint*'
	pull_request:
	branches: '**'
	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

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

	permissions:
	contents: read

	jobs:

	# ICU4C docs build using doxygen..
	icu4c-docs-build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C doc
	run: \|
	sudo apt-get -y install doxygen;
	cd icu4c/source;
	./runConfigureICU Linux --disable-renaming;
	# Fail if 'warning:' appears in doxygen's output, but ignore warnings from file Doxyfile.
	# Regex note: (?! ... ) is a negative lookahead. Succeed if the pattern is not present.
	set +o pipefail && make doc 2>&1 \| tee doxygen.log && ( ! grep -P 'warning:(?! .* file .?Doxyfile)' doxygen.log )

	# 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-latest
	steps:
	- name: Checkout and setup
	uses: actions/checkout@v3
	with:
	lfs: true
	- name: Checkout lfs objects
	run: git lfs pull
	- name: Cache local Maven repository
	uses: actions/cache@v3
	with:
	path: ~/.m2/repository
	key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
	- uses: actions/setup-java@v3
	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' ]
	runs-on: ubuntu-latest
	steps:
	- name: Checkout and setup
	uses: actions/checkout@v3
	with:
	lfs: true
	- name: Checkout lfs objects
	run: git lfs pull
	- name: Restore read-only cache of local Maven repository
	uses: actions/cache/restore@v3
	id: cache
	with:
	path: ~/.m2/repository
	key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
	restore-keys: \|
	${{ runner.os }}-maven-
	- uses: actions/setup-java@v3
	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-latest
	steps:
	- name: Checkout and setup
	uses: actions/checkout@v3
	with:
	lfs: true
	- name: Checkout lfs objects
	run: git lfs pull
	- name: Restore read-only cache of local Maven repository
	uses: actions/cache/restore@v3
	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@v3
	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 -l2.5 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-latest
	steps:
	- name: Checkout and setup
	uses: actions/checkout@v3
	with:
	lfs: true
	- name: Checkout lfs objects
	run: git lfs pull
	- name: Restore read-only cache of local Maven repository
	uses: actions/cache/restore@v3
	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@v3
	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 -l2.5 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() }}

	# gcc debug build.
	# Includes dependency checker.
	# Note - the dependency checker needs to be run on both a debug and an optimized build.
	# This one (gcc) for debug, and linux clang (see job below) for optimized.
	#
	# Test both out-of-source and in-source builds. This one (gcc) for out-of-source,
	# and linux clang (below) for in-source.
	#
	# Invokes test/hdrtst to check public headers compliance.
	gcc-debug-build-and-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C with gcc
	env:
	PREFIX: /tmp/icu-prefix
	run: \|
	mkdir build;
	cd build;
	../icu4c/source/runConfigureICU --enable-debug --disable-release Linux/gcc --prefix=$PREFIX --enable-tracing;
	make -j -l2.5 check;
	( cd ../icu4c/source/test/depstest && ./depstest.py ../../../../build/ );
	make install;
	PATH=$PREFIX/bin:$PATH make -C test/hdrtst check

	# clang release build with some options to enforce useful constraints.
	# Includes dependency checker on an in-source, optimized build.
	# Includes checking @draft etc. API tags vs. ifndef guards like
	# U_HIDE_DRAFT_API and U_FORCE_HIDE_DRAFT_API.
	# (FORCE guards make this tool pass but won't compile to working code.
	# See the testtagsguards.sh script for details.)
	clang-release-build-and-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Install doxygen
	run: \|
	sudo apt-get -y install doxygen;
	- name: Build ICU4C with clang
	env:
	CPPFLAGS: -DU_NO_DEFAULT_INCLUDE_UTF_HEADERS=1
	CFLAGS: -Wimplicit-fallthrough
	CXXFLAGS: -Wimplicit-fallthrough
	run: \|
	cd icu4c/source;
	./runConfigureICU Linux;
	make -j -l2.5 check;
	- name: Test Dependency
	run: \|
	cd icu4c/source/test/depstest;
	python3 depstest.py ../../../source/;
	- name: Test Tags Guards
	run: \|
	cd icu4c;
	source/test/hdrtst/testtagsguards.sh;
	- name: Make Dist
	env:
	CPPFLAGS: -DU_NO_DEFAULT_INCLUDE_UTF_HEADERS=1
	CFLAGS: -Wimplicit-fallthrough
	CXXFLAGS: -Wimplicit-fallthrough
	run: \|
	cd icu4c/source;
	make dist

	# clang build with some options
	clang-options-build-and-test:
	strategy:
	# "fail-fast: false" lets other jobs keep running even if the test breaks in some other options.
	fail-fast: false
	matrix:
	build_option:
	[ --enable-static, --enable-static --disable-shared ]
	# --disable-shared has a build problem.
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Build ICU4C with clang
	run: \|
	cd icu4c/source;
	./runConfigureICU Linux ${{ matrix.build_option }};
	make -j -l2.5 tests;
	- name: Test
	run: \|
	cd icu4c/source;
	make check;

	# Out of source build with gcc 10, c++14, and extra warnings; executes icuinfo.
	gcc-10-stdlib14:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C with gcc 10 and c++14 and extra warnings.
	env:
	PREFIX: /tmp/icu-prefix
	CC: gcc-10
	CXX: g++-10
	CXXFLAGS: -std=c++14 -Wextra
	run: \|
	mkdir build;
	cd build;
	../icu4c/source/runConfigureICU Linux --disable-layout --disable-layoutex --prefix=$PREFIX;
	make -j -l2.5 check;
	make -j -l2.5 install;
	cd $PREFIX/bin;
	LD_LIBRARY_PATH=../lib ./icuinfo

	# Clang Linux with address sanitizer.
	clang-asan:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C with clang and asan
	run: \|
	cd icu4c/source;
	./runConfigureICU --enable-debug --disable-release Linux --disable-renaming --enable-tracing;
	make -j -l2.5 check;
	env:
	CPPFLAGS: -fsanitize=address
	LDFLAGS: -fsanitize=address
	# Clang Linux with undefined-behavior sanitizer.
	clang-ubsan:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C with clang and ubsan +alignment
	run: \|
	cd icu4c/source;
	./runConfigureICU --enable-debug --disable-release Linux --disable-renaming;
	make -j -l2.5 check;
	env:
	CPPFLAGS: -fsanitize=undefined -fsanitize=alignment -fno-sanitize-recover=undefined,alignment
	CFLAGS: -fsanitize=undefined -fsanitize=alignment -fno-sanitize-recover=undefined,alignment
	LDFLAGS: -fsanitize=undefined -fsanitize=alignment -fno-sanitize-recover=undefined,alignment
	# Control Flow Integrity.
	clang-cfi:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C with clang using CFI
	run: \|
	cd icu4c/source;
	./runConfigureICU Linux --disable-renaming;
	make -j -l2.5 check;
	env:
	CC: clang
	CXX: clang++
	# add -fsanitize=cfi-vcall -fsanitize=cfi-icall later
	CXXFLAGS: -flto -fvisibility=hidden -fsanitize=cfi-derived-cast -fno-sanitize-trap=cfi -fno-inline-functions -fno-inline -fno-omit-frame-pointer -O1
	# add -fsanitize=cfi-vcall -fsanitize=cfi-icall later
	LDFLAGS: -flto -fvisibility=hidden -fuse-ld=gold -fsanitize=cfi-derived-cast -fsanitize=cfi-unrelated-cast -fno-sanitize-trap=cfi -fsanitize-cfi-icall-generalize-pointers

	# Clang Linux with thread sanitizer.
	clang-tsan:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C with clang and tsan
	run: \|
	cd icu4c/source;
	./runConfigureICU --enable-debug --disable-release Linux --disable-renaming
	make -j -l2.5;
	make -j -l2.5 -C test;
	make -j -l2.5 -C test/intltest check
	env:
	INTLTEST_OPTS: utility/MultithreadTest
	CPPFLAGS: -fsanitize=thread
	LDFLAGS: -fsanitize=thread

	# MacOS with clang
	macos-clang:
	runs-on: macos-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C with clang on MacOS
	run: \|
	cd icu4c/source;
	PYTHON=python3 ./runConfigureICU MacOSX;
	make -j -l2.5 check

	# Run ICU4C tests with stubdata.
	run-with-stubdata:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C tests with stubdata
	run: \|
	cd icu4c/source;
	./runConfigureICU Linux;
	make -j -l2.5 check;
	rm lib/libicudata.so*;
	cp -P stubdata/libicudata.so* lib;

	cd test/cintltst;
	echo 'Running ICU4C cintltst with stubdata.';
	# Note: 'Elapsed Time: ' is printed by makefile upon final success.
	CINTLTST_OPTS=-w make -j -l2.5 check 2>&1 \| tee stubdata_ctest.log;
	if ! grep 'Elapsed Time: ' stubdata_ctest.log
	then
	echo
	echo cintltst run with stubdata failed
	echo
	echo See
	echo https://unicode-org.github.io/icu/processes/release/tasks/integration.html#run-tests-without-icu-data
	echo for how to reproduce and debug the failure
	exit 1
	fi

	cd ../intltest;
	echo 'Running ICU4C intltest with stubdata.';
	INTLTEST_OPTS=-w make -j -l2.5 check 2>&1 \| tee stubdata_intltest.log;
	if ! grep 'Elapsed Time: ' stubdata_intltest.log
	then
	echo
	echo intltest run with stubdata failed
	echo
	echo See
	echo https://unicode-org.github.io/icu/processes/release/tasks/integration.html#run-tests-without-icu-data
	echo for how to reproduce and debug the failure
	exit 1
	fi

	# Test U_CHARSET_IS_UTF8
	u-charset-is-utf8-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: \|
	cd icu4c/source;
	./runConfigureICU Linux CPPFLAGS="-DU_CHARSET_IS_UTF8=1";
	make -j -l2.5 check

	# Test U_OVERRIDE_CXX_ALLOCATION-is-0-test
	u-override-cxx-allocation-is-0-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: \|
	cd icu4c/source;
	./runConfigureICU Linux CPPFLAGS="-DU_OVERRIDE_CXX_ALLOCATION=0";
	make clean;
	make -j -l2.5 check

	# Test LSTM
	lstm-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: \|
	cd icu4c/source;
	ICU_DATA_FILTER_FILE=../../.github/lstm_for_th_my.json ./runConfigureICU --enable-debug --disable-release Linux -disable-layoutex;
	make clean;
	make -j -l2.5 check

	# Test adaboost
	adaboost-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: \|
	cd icu4c/source;
	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 -l2.5 check

	# Build and run testmap
	testmap:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: \|
	cd icu4c/source;
	./runConfigureICU Linux;
	make -j -l2.5 check;
	CONFIG_FILES=test/testmap/Makefile ./config.status;
	cd test/testmap;
	make -j -l2.5 check \| grep '*** PASS PASS PASS, test PASSED!!!!!!!!'

	# Copyright scan
	copyright-scan:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: perl tools/scripts/cpysearch/cpyscan.pl

	# Check compilation of internal headers.
	internal-header-compilation:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: cd icu4c/source; test/hdrtst/testinternalheaders.sh

	# Check source files for valid UTF-8 and for absence of BOM.
	valid-UTF-8-and-no-BOM-check:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- run: tools/scripts/icu-file-utf8-check.py

	# Verify icu4c release tools buildability.
	icu4c-release-tools:
	needs: icu4j-mvn-init-cache
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Restore read-only cache of local Maven repository
	uses: actions/cache/restore@v3
	id: cache
	with:
	path: ~/.m2/repository
	key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
	restore-keys: \|
	${{ runner.os }}-maven-
	- run: mvn ${SHARED_MVN_ARGS} -f tools/release/java/pom.xml package dependency:analyze

	# Run unit tests with UCONFIG_NO_XXX variations.
	uconfig-unit-tests:
	runs-on: ubuntu-latest
	strategy:
	# "fail-fast: false" lets other jobs keep running even if the test breaks in some other uconfig.
	fail-fast: false
	matrix:
	uconfig_cppflags:
	# Ignore the following two.
	# - "-DUCONFIG_NO_FILE_IO=1"
	# - "-DUCONFIG_NO_CONVERSION=1"
	- "-DUCONFIG_NO_LEGACY_CONVERSION=1"
	- "-DUCONFIG_NO_NORMALIZATION=1"
	- "-DUCONFIG_NO_BREAK_ITERATION=1"
	- "-DUCONFIG_NO_IDNA=1"
	- "-DUCONFIG_NO_COLLATION=1"
	- "-DUCONFIG_NO_FORMATTING=1"
	- "-DUCONFIG_NO_TRANSLITERATION=1"
	- "-DUCONFIG_NO_REGULAR_EXPRESSIONS=1"
	- "-DUCONFIG_NO_SERVICE=1"
	- "-DUCONFIG_NO_FILTERED_BREAK_ITERATION=1"
	# Turn on all the options in one test.
	- "-DUCONFIG_NO_LEGACY_CONVERSION=1 -DUCONFIG_NO_NORMALIZATION=1 -DUCONFIG_NO_BREAK_ITERATION=1 -DUCONFIG_NO_IDNA=1 -DUCONFIG_NO_COLLATION=1 -DUCONFIG_NO_FORMATTING=1 -DUCONFIG_NO_TRANSLITERATION=1 -DUCONFIG_NO_REGULAR_EXPRESSIONS=1 -DUCONFIG_NO_SERVICE=1 -DUCONFIG_NO_FILTERED_BREAK_ITERATION=1"
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Verify no additional new UCONFIG_NO_xxx added
	run: \|
	# Test that we have exactly 12 "#ifndef UCONFIG_NO_" in uconfig.h. If the number changes, we need to also
	# adjust the uconfig_cppflags above to include the new one and update the "12" below.
	expected_count="12";
	count=`egrep "#ifndef UCONFIG_NO_" icu4c/source/common/unicode/uconfig.h\| wc -l`;
	if [ $expected_count != $count ]; then
	echo "More than %s UCONFIG_NO_* defined in uconfig.h, please adjust uconfig_cppflags above to include any newly added flag" % $expected_count;
	echo "Currently UCONFIG_NO_* defined in uconfig.h:";
	egrep "#ifndef UCONFIG_NO_" icu4c/source/common/unicode/uconfig.h;
	exit -1
	fi
	- name: Build and Test
	env:
	CPPFLAGS: ${{ matrix.uconfig_cppflags }}
	run: \|
	cd icu4c/source/;
	./runConfigureICU Linux;
	make -j -l2.5 tests;

	# Run header tests with UCONFIG_NO_XXX variations.
	uconfig-header-tests:
	runs-on: ubuntu-latest
	strategy:
	# "fail-fast: false" lets other jobs keep running even if the test breaks in some other uconfig.
	fail-fast: false
	matrix:
	uconfig_cppflags:
	# Ignore the following two.
	# - "-DUCONFIG_NO_FILE_IO=1"
	# - "-DUCONFIG_NO_CONVERSION=1"
	- "-DUCONFIG_NO_LEGACY_CONVERSION=1"
	- "-DUCONFIG_NO_NORMALIZATION=1"
	- "-DUCONFIG_NO_BREAK_ITERATION=1"
	- "-DUCONFIG_NO_IDNA=1"
	- "-DUCONFIG_NO_COLLATION=1"
	- "-DUCONFIG_NO_FORMATTING=1"
	- "-DUCONFIG_NO_TRANSLITERATION=1"
	- "-DUCONFIG_NO_REGULAR_EXPRESSIONS=1"
	- "-DUCONFIG_NO_SERVICE=1"
	- "-DUCONFIG_NO_FILTERED_BREAK_ITERATION=1"
	# Turn on all the options in one test.
	- "-DUCONFIG_NO_LEGACY_CONVERSION=1 -DUCONFIG_NO_NORMALIZATION=1 -DUCONFIG_NO_BREAK_ITERATION=1 -DUCONFIG_NO_IDNA=1 -DUCONFIG_NO_COLLATION=1 -DUCONFIG_NO_FORMATTING=1 -DUCONFIG_NO_TRANSLITERATION=1 -DUCONFIG_NO_REGULAR_EXPRESSIONS=1 -DUCONFIG_NO_SERVICE=1 -DUCONFIG_NO_FILTERED_BREAK_ITERATION=1"
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Verify no additional new UCONFIG_NO_xxx added
	run: \|
	# Test that we have exactly 12 "#ifndef UCONFIG_NO_" in uconfig.h. If the number changes, we need to also
	# adjust the uconfig_cppflags above to include the new one and update the "12" below.
	count=`egrep "#ifndef UCONFIG_NO_" icu4c/source/common/unicode/uconfig.h\| wc -l`;
	if [ "12" != $count ]; then
	echo "More than %s UCONFIG_NO_* defined in uconfig.h, please adjust uconfig_cppflags above to include any newly added flag" % $count;
	echo "Currently UCONFIG_NO_* defined in uconfig.h:";
	egrep "#ifndef UCONFIG_NO_" icu4c/source/common/unicode/uconfig.h;
	exit -1
	fi
	- name: Build and Install
	run: \|
	cd icu4c/source/;
	mkdir /tmp/icu_cnfg;
	./runConfigureICU Linux --prefix=/tmp/icu_cnfg;
	make -j -l2.5 install;
	- name: Test
	env:
	UCONFIG_NO: ${{ matrix.uconfig_cppflags }}
	run: \|
	cd icu4c/source/;
	PATH=/tmp/icu_cnfg/bin:$PATH make -C test/hdrtst check;

	# Build Unicode update tools
	unicode-update-tools:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: bazelbuild/setup-bazelisk@v2
	- name: Get CI Linux runner VM version
	id: linux-version
	run: \|
	echo "LINUX_VERSION=$(grep -F VERSION_ID /etc/os-release \| cut -d'"' -f2)" >> $GITHUB_OUTPUT
	- name: Mount bazel cache
	uses: actions/cache@v3
	with:
	path: "~/.cache/bazel"
	key: bazel-${{ runner.os }}-${{ steps.linux-version.outputs.LINUX_VERSION }}

	- name: Generate the data
	run: \|
	export ICU_SRC=`pwd`;
	icu4c/source/data/unidata/generate.sh;
	if $?
	then
	echo
	echo Build of Unicode update tools failed.
	echo See
	echo https://unicode-org.github.io/icu/processes/unicode-update#bazel-build-process
	echo for how to reproduce and debug the failure
	exit 1
	fi

	git diff --exit-code;
	if $?
	then
	echo
	echo ICU unicode data has changed!
	echo Did you forget to include the changed data files in this PR?
	exit 1
	fi

	# Build and run ICU4C samples
	icu4c-test-samples:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: ICU4C configure and build
	run: \|
	# Perform an out-of-source build of icu4c
	mkdir /tmp/icu_samples
	cd icu4c/source
	./runConfigureICU Linux -prefix=/tmp/icu_samples
	make install
	# Reference the paths in the new build
	cd samples
	# To clean all the test binaries
	make clean-samples-recursive
	# To rebuild them all
	echo "Make all samples"
	PATH=$PATH:/tmp/icu_samples/bin LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/tmp/icu_samples/lib make all-samples-recursive
	# To run all tests serially
	echo "Run all samples"
	pwd
	PATH=$PATH:/tmp/icu_samples/bin LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/tmp/icu_samples/lib make check-samples-recursive

	# https://unicode-org.github.io/icu/processes/release/tasks/integration.html#verify-that-icu4c-tests-pass-without-collation-rule-strings
	icu4c-without-collation-rule-strings:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Install hjson dependency
	run: \|
	sudo apt-get install python3-pip
	pip3 install hjson
	- name: Create data filter file to remove collation rule strings
	run: \|
	cat > icu4c/coll-norules.hjson <<EOL
	{
	resourceFilters: [
	{
	categories: [
	coll_tree
	]
	rules: [
	-/UCARules
	-/collations/*/Sequence
	]
	}
	]
	}
	EOL
	- name: Configure ICU4C with the data filter file
	env:
	ICU_DATA_FILTER_FILE: ../coll-norules.hjson
	run: \|
	cd icu4c/source
	./runConfigureICU Linux
	- name: Run tests with data-errors-as-warnings
	env:
	INTLTEST_OPTS: -w
	CINTLTST_OPTS: -w
	run: \|
	cd icu4c/source
	make -j -l2.5 check

	# https://unicode-org.github.io/icu/processes/release/tasks/healthy-code.html#test-uconfig_no_conversion
	icu4c-uconfig-no-conversion:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set UCONFIG_NO_CONVERSION and configure ICU4C
	env:
	UCONFIG_NO_CONVERSION: 1
	run: \|
	cd icu4c/source
	./runConfigureICU Linux
	- name: Run make for stubdata, common, i18n
	run: \|
	cd icu4c/source
	pushd stubdata && make -j -l2.5 && popd
	# Ensure lib directory for output object file exists
	mkdir -p lib
	pushd common && make -j -l2.5 && popd
	pushd i18n && make -j -l2.5 && popd

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ICU-22522 Update the Azure CI from Clang 14 to Clang 16 #5364

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ICU-22522 Update the Azure CI from Clang 14 to Clang 16 #5364

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