Merge branch 'ps/gitlab-ci-macos'

CI for GitLab learned to drive macOS jobs.

* ps/gitlab-ci-macos:
  ci: add macOS jobs to GitLab CI
  ci: make p4 setup on macOS more robust
  ci: handle TEST_OUTPUT_DIRECTORY when printing test failures
  Makefile: detect new Homebrew location for ARM-based Macs
  t7527: decrease likelihood of racing with fsmonitor daemon

.gitlab-ci.yml

@@ -7,7 +7,7 @@ workflow:
     - if: $CI_COMMIT_TAG
     - if: $CI_COMMIT_REF_PROTECTED == "true"
 
-test:
+test:linux:
   image: $image
   before_script:
     - ./ci/install-docker-dependencies.sh
@@ -52,6 +52,38 @@ test:
       - t/failed-test-artifacts
     when: on_failure
 
+test:osx:
+  image: $image
+  tags:
+    - saas-macos-medium-m1
+  variables:
+    TEST_OUTPUT_DIRECTORY: "/Volumes/RAMDisk"
+  before_script:
+    # Create a 4GB RAM disk that we use to store test output on. This small hack
+    # significantly speeds up tests by more than a factor of 2 because the
+    # macOS runners use network-attached storage as disks, which is _really_
+    # slow with the many small writes that our tests do.
+    - sudo diskutil apfs create $(hdiutil attach -nomount ram://8192000) RAMDisk
+    - ./ci/install-dependencies.sh
+  script:
+    - ./ci/run-build-and-tests.sh
+  after_script:
+    - |
+      if test "$CI_JOB_STATUS" != 'success'
+      then
+        ./ci/print-test-failures.sh
+        mv "$TEST_OUTPUT_DIRECTORY"/failed-test-artifacts t/
+      fi
+  parallel:
+    matrix:
+      - jobname: osx-clang
+        image: macos-13-xcode-14
+        CC: clang
+  artifacts:
+    paths:
+      - t/failed-test-artifacts
+    when: on_failure
+
 static-analysis:
   image: ubuntu:22.04
   variables:

ci/install-dependencies.sh

@@ -37,15 +37,13 @@ macos-*)
 	test -z "$BREW_INSTALL_PACKAGES" ||
 	brew install $BREW_INSTALL_PACKAGES
 	brew link --force gettext
-	mkdir -p $HOME/bin
-	(
-		cd $HOME/bin
+
+	mkdir -p "$P4_PATH"
+	pushd "$P4_PATH"
 		wget -q "$P4WHENCE/bin.macosx1015x86_64/helix-core-server.tgz" &&
 		tar -xf helix-core-server.tgz &&
 		sudo xattr -d com.apple.quarantine p4 p4d 2>/dev/null || true
-	)
-	PATH="$PATH:${HOME}/bin"
-	export PATH
+	popd
 
 	if test -n "$CC_PACKAGE"
 	then

ci/lib.sh

@@ -252,7 +252,14 @@ then
 	CI_COMMIT="$CI_COMMIT_SHA"
 	case "$CI_JOB_IMAGE" in
 	macos-*)
-		CI_OS_NAME=osx;;
+		# GitLab CI has Python installed via multiple package managers,
+		# most notably via asdf and Homebrew. Ensure that our builds
+		# pick up the Homebrew one by prepending it to our PATH as the
+		# asdf one breaks tests.
+		export PATH="$(brew --prefix)/bin:$PATH"
+
+		CI_OS_NAME=osx
+		;;
 	alpine:*|fedora:*|ubuntu:*)
 		CI_OS_NAME=linux;;
 	*)
@@ -344,6 +351,9 @@ macos-*)
 	then
 		MAKEFLAGS="$MAKEFLAGS APPLE_COMMON_CRYPTO_SHA1=Yes"
 	fi
+
+	P4_PATH="$HOME/custom/p4"
+	export PATH="$P4_PATH:$PATH"
 	;;
 esac
 

ci/print-test-failures.sh

@@ -8,7 +8,7 @@
 # Tracing executed commands would produce too much noise in the loop below.
 set +x
 
-cd t/
+cd "${TEST_OUTPUT_DIRECTORY:-t/}"
 
 if ! ls test-results/*.exit >/dev/null 2>/dev/null
 then

config.mak.uname

@@ -158,6 +158,19 @@ ifeq ($(uname_S),Darwin)
 		ifeq ($(shell test -x /usr/local/opt/gettext/bin/msgfmt && echo y),y)
 			MSGFMT = /usr/local/opt/gettext/bin/msgfmt
 		endif
+	# On newer ARM-based machines the default installation path has changed to
+	# /opt/homebrew. Include it in our search paths so that the user does not
+	# have to configure this manually.
+	#
+	# Note that we do not employ the same workaround as above where we manually
+	# add gettext. The issue was fixed more than three years ago by now, and at
+	# that point there haven't been any ARM-based Macs yet.
+	else ifeq ($(shell test -d /opt/homebrew/ && echo y),y)
+		BASIC_CFLAGS += -I/opt/homebrew/include
+		BASIC_LDFLAGS += -L/opt/homebrew/lib
+		ifeq ($(shell test -x /opt/homebrew/bin/msgfmt && echo y),y)
+			MSGFMT = /opt/homebrew/bin/msgfmt
+		endif
 	endif
 
 	# The builtin FSMonitor on MacOS builds upon Simple-IPC.  Both require

t/t7527-builtin-fsmonitor.sh

@@ -978,7 +978,7 @@ test_expect_success !UNICODE_COMPOSITION_SENSITIVE 'Unicode nfc/nfd' '
 	mkdir test_unicode/nfd &&
 	mkdir test_unicode/nfd/d_${utf8_nfd} &&
 
-	git -C test_unicode fsmonitor--daemon stop &&
+	test-tool -C test_unicode fsmonitor-client query --token 0 &&
 
 	if test_have_prereq UNICODE_NFC_PRESERVED
 	then