macports/restore: Use snapshot::diff to display summary #24

	---
	name: "Report Coverage"

	on:
	- push
	- pull_request

	jobs:
	build:
	name: ${{ matrix.os }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [macos-13]

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 64
	- name: Cleanup /usr/local
	run: \|
	sudo mkdir /opt/local.old
	sudo mv /usr/local/* /opt/local.old
	- name: Configure MacPorts Base
	run: \|
	set -eu
	./configure CFLAGS="-fprofile-instr-generate -fcoverage-mapping" LDFLAGS="-fprofile-instr-generate"
	- name: Build MacPorts Base
	run: \|
	set -eu
	make -j$(sysctl -n hw.activecpu)
	- name: Install MacPorts Base
	run: \|
	set -eu
	sudo make install
	- name: Test MacPorts Base
	run: \|
	set -eu
	LLVM_PROFILE_FILE="$PWD/cov-%p.profraw" make test
	- name: Report Coverage
	run: \|
	set -eu
	xcrun llvm-profdata merge --sparse --output=cov.profdata cov-*.profraw
	# tracelib cannot be profiled
	OBJ_FILES="$(find src -type f "(" -name ".dylib" -o -name ".a" ")" \| grep -Fv darwintracelib1.0 \| sed 's/^/--arch=x86_64 --object=/')"
	xcrun llvm-cov show --format=html --output-dir=covreport --ignore-filename-regex=vendor/ --instr-profile=cov.profdata $OBJ_FILES
	xcrun llvm-cov report --ignore-filename-regex=vendor/ --instr-profile=cov.profdata $OBJ_FILES
	- name: Archive code coverage results
	uses: actions/upload-artifact@v2
	with:
	name: code-coverage-report
	path: covreport/

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