diff --git a/meta/classes-recipe/ptest-cargo.bbclass b/meta/classes-recipe/ptest-cargo.bbclass new file mode 100644 index 000000000000..f28bc7a8269e --- /dev/null +++ b/meta/classes-recipe/ptest-cargo.bbclass @@ -0,0 +1,130 @@ +inherit cargo ptest + +# I didn't find a cleaner way to share data between compile and install tasks +CARGO_TEST_BINARIES_FILES ?= "${B}/test_binaries_list" + +# Sadly, generated test binaries have no deterministic names (https://github.com/rust-lang/cargo/issues/1924) +# This forces us to parse the cargo output in json format to find those test binaries. +python do_compile_ptest_cargo() { + import subprocess + import json + + cargo = bb.utils.which(d.getVar("PATH"), d.getVar("CARGO", True)) + cargo_build_flags = d.getVar("CARGO_BUILD_FLAGS", True) + rust_flags = d.getVar("RUSTFLAGS", True) + manifest_path = d.getVar("MANIFEST_PATH", True) + + env = os.environ.copy() + env['RUSTFLAGS'] = rust_flags + cmd = f"{cargo} build --tests --message-format json {cargo_build_flags}" + bb.note(f"Building tests with cargo ({cmd})") + + try: + proc = subprocess.Popen(cmd, shell=True, env=env, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) + except subprocess.CalledProcessError as e: + bb.fatal(f"Cannot build test with cargo: {e}") + + lines = [] + for line in proc.stdout: + data = line.decode('utf-8').strip('\n') + lines.append(data) + bb.note(data) + proc.communicate() + if proc.returncode != 0: + bb.fatal(f"Unable to compile test with cargo, '{cmd}' failed") + + # Definition of the format: https://doc.rust-lang.org/cargo/reference/external-tools.html#json-messages + test_bins = [] + for line in lines: + try: + data = json.loads(line) + except json.JSONDecodeError: + # skip lines that are not a json + pass + else: + try: + # Filter the test packages coming from the current manifest + current_manifest_path = os.path.normpath(data['manifest_path']) + project_manifest_path = os.path.normpath(manifest_path) + if current_manifest_path == project_manifest_path: + if data['target']['test'] or data['target']['doctest'] and data['executable']: + test_bins.append(data['executable']) + except KeyError as e: + # skip lines that do not meet the requirements + pass + + # All rust project will generate at least one unit test binary + # It will just run a test suite with 0 tests, if the project didn't define some + # So it is not expected to have an empty list here + if not test_bins: + bb.fatal("Unable to find any test binaries") + + cargo_test_binaries_file = d.getVar('CARGO_TEST_BINARIES_FILES', True) + bb.note(f"Found {len(test_bins)} tests, write their paths into {cargo_test_binaries_file}") + with open(cargo_test_binaries_file, "w") as f: + for test_bin in test_bins: + f.write(f"{test_bin}\n") + +} + +python do_install_ptest_cargo() { + import shutil + + dest_dir = d.getVar("D", True) + pn = d.getVar("PN", True) + ptest_path = d.getVar("PTEST_PATH", True) + cargo_test_binaries_file = d.getVar('CARGO_TEST_BINARIES_FILES', True) + + ptest_dir = os.path.join(dest_dir, ptest_path.lstrip('/')) + os.makedirs(ptest_dir, exist_ok=True) + + test_bins = [] + with open(cargo_test_binaries_file, "r") as f: + for line in f.readlines(): + test_bins.append(line.strip('\n')) + + test_paths = [] + for test_bin in test_bins: + shutil.copy2(test_bin, ptest_dir) + test_paths.append(os.path.join(ptest_path, os.path.basename(test_bin))) + + ptest_script = os.path.join(ptest_dir, "run-ptest") + if os.path.exists(ptest_script): + with open(ptest_script, "a") as f: + f.write(f"\necho \"\"\n") + f.write(f"echo \"## starting to run rust tests ##\"\n") + for test_path in test_paths: + f.write(f"{test_path}\n") + else: + with open(ptest_script, "a") as f: + f.write("#!/bin/sh\n") + for test_path in test_paths: + f.write(f"{test_path}\n") + os.chmod(ptest_script, 0o755) + + # this is chown -R root:root ${D}${PTEST_PATH} + for root, dirs, files in os.walk(ptest_dir): + for d in dirs: + shutil.chown(os.path.join(root, d), "root", "root") + for f in files: + shutil.chown(os.path.join(root, f), "root", "root") +} + +do_install_ptest_cargo[dirs] = "${B}" +do_install_ptest_cargo[doc] = "Create or update the run-ptest script with rust test binaries generated" +do_compile_ptest_cargo[dirs] = "${B}" +do_compile_ptest_cargo[doc] = "Generate rust test binaries through cargo" + +addtask compile_ptest_cargo after do_compile before do_compile_ptest_base +addtask install_ptest_cargo after do_install_ptest_base before do_package + +python () { + if not bb.data.inherits_class('native', d) and not bb.data.inherits_class('cross', d): + d.setVarFlag('do_install_ptest_cargo', 'fakeroot', '1') + d.setVarFlag('do_install_ptest_cargo', 'umask', '022') + + # Remove all '*ptest_cargo' tasks when ptest is not enabled + if not(d.getVar('PTEST_ENABLED') == "1"): + for i in ['do_compile_ptest_cargo', 'do_install_ptest_cargo']: + bb.build.deltask(i, d) +}