Azure: Publish code coverage results

* Add an Azure Publish Code Coverage Results task
* Add `make gcovr-html` to generate a gcovr test coverage report in HTML
* Add `make gcovr-xml` to generate a gcovr test coverage report in XML
* Remove `test` target dependency from `make lcov-html`;
  Run the two targets together instead: `make test lcov-html`.

Re: https://github.com/php/php-src/pull/4739#issuecomment-534911441

See: https://externals.io/message/107113,
https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/test/publish-code-coverage-results?view=azure-devops,
and https://github.com/php/php-src/pull/4759.

6 files changed, 103 insertions, 27 deletions

diff --git a/.gitignore b/.gitignore
index 20c97ef302..cd6e779831 100644
--- a/.gitignore
+++ b/.gitignore
@@ -249,6 +249,8 @@ tmp-php.ini
 # ------------------------------------------------------------------------------
 *.gcda
 *.gcno
+/gcovr.xml
+/gcovr_html/
 /lcov_html/
 /php_lcov.info
 
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 82531f2786..83925636f9 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -82,3 +82,7 @@ jobs:
             --enable-debug --enable-maintainer-zts
             CFLAGS='-fsanitize=undefined,address -fno-sanitize-recover -DZEND_TRACK_ARENA_ALLOC'
             LDFLAGS='-fsanitize=undefined,address'
+    - template: azure/coverage_job.yml
+      parameters:
+        configurationName: COVERAGE_DEBUG_ZTS
+        configurationParameters: '--enable-debug --disable-maintainer-zts'
diff --git a/azure/coverage_job.yml b/azure/coverage_job.yml
new file mode 100644
index 0000000000..217b5d664a
--- /dev/null
+++ b/azure/coverage_job.yml
@@ -0,0 +1,42 @@
+parameters:
+  configurationName: ''
+  configurationParameters: ''
+  runTestsParameters: ''
+  timeoutInMinutes: 60
+
+jobs:
+  - job: ${{ parameters.configurationName }}
+    timeoutInMinutes: ${{ parameters.timeoutInMinutes }}
+    pool:
+      vmImage: 'ubuntu-latest'
+    steps:
+    - template: apt.yml
+    - script: |
+        sudo -H pip install gcovr
+      displayName: 'Install gcovr'
+    - template: configure.yml
+      parameters:
+        configurationParameters: --enable-gcov ${{ parameters.configurationParameters }}
+    - script: make -j$(/usr/bin/nproc) >/dev/null
+      displayName: 'Make Build'
+    - template: install.yml
+    - script: |
+        mysql -uroot -proot -e "CREATE DATABASE IF NOT EXISTS test"
+        sudo -u postgres psql -c "ALTER USER postgres PASSWORD 'postgres';"
+        sudo -u postgres psql -c "CREATE DATABASE test;"
+      displayName: 'Setup'
+    - template: test.yml
+      parameters:
+        configurationName: ${{ parameters.configurationName }}
+        runTestsParameters: ${{ parameters.runTestsParameters }}
+    - script: |
+        make gcovr-xml
+        mv gcovr.xml coverage.xml
+      displayName: 'Generate ${{ parameters.configurationName }} Test Coverage'
+      condition: or(succeeded(), failed())
+    - task: PublishCodeCoverageResults@1
+      inputs:
+        codeCoverageTool: 'Cobertura'
+        summaryFileLocation: coverage.xml
+      displayName: 'Publish ${{ parameters.configurationName }} Test Coverage'
+      condition: or(succeeded(), failed())
diff --git a/azure/install.yml b/azure/install.yml
new file mode 100644
index 0000000000..7f5bf4b68f
--- /dev/null
+++ b/azure/install.yml
@@ -0,0 +1,10 @@
+steps:
+  - script: |
+      sudo make install
+      sudo mkdir     /etc/php.d
+      sudo chmod 777 /etc/php.d
+      echo mysqli.default_socket=/var/run/mysqld/mysqld.sock    > /etc/php.d/mysqli.ini
+      echo pdo_mysql.default_socket=/var/run/mysqld/mysqld.sock > /etc/php.d/pdo_mysql.ini
+      echo opcache.enable_cli=1 >> /etc/php.d/opcache.ini
+      echo opcache.protect_memory=1 >> /etc/php.d/opcache.ini
+    displayName: 'Install Build'
diff --git a/azure/job.yml b/azure/job.yml
index e4af6d631e..afe1d99e80 100644
--- a/azure/job.yml
+++ b/azure/job.yml
@@ -16,15 +16,7 @@ jobs:
         configurationParameters: ${{ parameters.configurationParameters }}
     - script: make -j$(/usr/bin/nproc) >/dev/null
       displayName: 'Make Build'
-    - script: |
-        sudo make install
-        sudo mkdir     /etc/php.d
-        sudo chmod 777 /etc/php.d
-        echo mysqli.default_socket=/var/run/mysqld/mysqld.sock     > /etc/php.d/mysqli.ini
-        echo pdo_mysql.default_socket=/var/run/mysqld/mysqld.sock  > /etc/php.d/pdo_mysql.ini
-        echo opcache.enable_cli=1 >> /etc/php.d/opcache.ini
-        echo opcache.protect_memory=1 >> /etc/php.d/opcache.ini
-      displayName: 'Install Build'
+    - template: install.yml
     - script: |
         mysql -uroot -proot -e "CREATE DATABASE IF NOT EXISTS test"
         sudo -u postgres psql -c "ALTER USER postgres PASSWORD 'postgres';"
diff --git a/build/Makefile.gcov b/build/Makefile.gcov
index 944739aff3..a206523061 100644
--- a/build/Makefile.gcov
+++ b/build/Makefile.gcov
@@ -1,34 +1,43 @@
 #
-# LCOV
+# GCOV
 #
 
 LTP = lcov
 LTP_GENHTML = genhtml
 
-lcov: lcov-html
+LCOV_EXCLUDES = \
+	'$(top_srcdir)/ext/bcmath/libbcmath/*' \
+	'$(top_srcdir)/ext/date/lib/*' \
+	'$(top_srcdir)/ext/fileinfo/libmagic/*' \
+	'$(top_srcdir)/ext/gd/libgd/*' \
+	'$(top_srcdir)/ext/hash/sha3/*' \
+	'$(top_srcdir)/ext/mbstring/libmbfl/*' \
+	'$(top_srcdir)/ext/opcache/jit/libudis86/*' \
+	'$(top_srcdir)/ext/pcre/pcre2lib/*' \
+	'$(top_srcdir)/ext/xmlrpc/libxmlrpc/*'
+
+GCOVR_EXCLUDES = \
+	'ext/bcmath/libbcmath/.*' \
+	'ext/date/lib/.*' \
+	'ext/fileinfo/libmagic/.*' \
+	'ext/gd/libgd/.*' \
+	'ext/hash/sha3/.*' \
+	'ext/mbstring/libmbfl/.*' \
+	'ext/opcache/jit/libudis86/.*' \
+	'ext/pcre/pcre2lib/.*' \
+	'ext/xmlrpc/libxmlrpc/.*'
 
-lcov-test: lcov-clean-data test
+lcov: lcov-html
 
-php_lcov.info: lcov-test
+php_lcov.info:
 	@echo "Generating lcov data for $@"
-	@$(LTP) --capture --no-external --directory . --output-file $@
+	$(LTP) --capture --no-external --directory . --output-file $@
 	@echo "Stripping bundled libraries from $@"
-	@$(LTP) --remove $@ \
-		'*/<stdout>' \
-		'$(top_srcdir)/ext/bcmath/libbcmath/*' \
-		'$(top_srcdir)/ext/date/lib/*' \
-		'$(top_srcdir)/ext/fileinfo/libmagic/*' \
-		'$(top_srcdir)/ext/gd/libgd/*' \
-		'$(top_srcdir)/ext/hash/sha3/*' \
-		'$(top_srcdir)/ext/mbstring/libmbfl/*' \
-		'$(top_srcdir)/ext/opcache/jit/libudis86/*' \
-		'$(top_srcdir)/ext/pcre/pcre2lib/*' \
-		'$(top_srcdir)/ext/xmlrpc/libxmlrpc/*' \
-		--output-file $@
+	$(LTP) --output-file $@ --remove $@ '*/<stdout>' $(LCOV_EXCLUDES)
 
 lcov-html: php_lcov.info
 	@echo "Generating lcov HTML"
-	@$(LTP_GENHTML) --legend --output-directory lcov_html/ --title "PHP Code Coverage" php_lcov.info
+	$(LTP_GENHTML) --legend --output-directory lcov_html/ --title "PHP Code Coverage" php_lcov.info
 
 lcov-clean:
 	rm -f php_lcov.info
@@ -36,3 +45,20 @@ lcov-clean:
 
 lcov-clean-data:
 	@find . -name \*.gcda -o -name \*.da -o -name \*.bbg? | xargs rm -f
+
+gcovr-html:
+	@echo "Generating gcovr HTML"
+	@rm -rf gcovr_html/
+	@mkdir gcovr_html
+	gcovr -sr . -o gcovr_html/index.html --html --html-details \
+		--exclude-directories 'ext/date/lib$$' \
+		$(foreach lib, $(GCOVR_EXCLUDES), -e $(lib))
+
+gcovr-xml:
+	@echo "Generating gcovr XML"
+	@rm -f gcovr.xml
+	gcovr -sr . -o gcovr.xml --xml \
+		--exclude-directories 'ext/date/lib$$' \
+		$(foreach lib, $(GCOVR_EXCLUDES), -e $(lib))
+
+.PHONY: gcovr-html lcov-html php_lcov.info