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inherit cargo ptest
RUST_TEST_ARGS ??= ""
RUST_TEST_ARGS[doc] = "Arguments to give to the test binaries (e.g. --shuffle)"
# 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)
rust_test_args = d.getVar('RUST_TEST_ARGS') or ""
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} {rust_test_args}\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} {rust_test_args}\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)
}
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