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Internal: Update fastcov.py from upstream.

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This commit is contained in:
Wilson Snyder 2020-06-06 05:48:36 -04:00
parent 48740a0dba
commit 1d8955fea5
1 changed files with 81 additions and 55 deletions
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136
nodist/fastcov.py
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@ -40,6 +40,17 @@ START_TIME = time.monotonic()
GCOVS_TOTAL = 0 GCOVS_TOTAL = 0
GCOVS_SKIPPED = 0 GCOVS_SKIPPED = 0
# For when things go wrong...
# Start error codes at 3 because 1-2 are special
# See https://stackoverflow.com/a/1535733/2516916
EXIT_CODE = 0
EXIT_CODES = {
"gcov_version": 3,
"python_version": 4,
"unsupported_coverage_format": 5,
"excl_not_found": 6,
}
# Disable all logging in case developers are using this as a module # Disable all logging in case developers are using this as a module
logging.disable(level=logging.CRITICAL) logging.disable(level=logging.CRITICAL)
@ -54,6 +65,10 @@ def chunks(l, n):
for i in range(0, len(l), n): for i in range(0, len(l), n):
yield l[i:i + n] yield l[i:i + n]
def setExitCode(key):
global EXIT_CODE
EXIT_CODE = EXIT_CODES[key]
def incrementCounters(total, skipped): def incrementCounters(total, skipped):
global GCOVS_TOTAL global GCOVS_TOTAL
global GCOVS_SKIPPED global GCOVS_SKIPPED
@ -273,65 +288,72 @@ def getSourceLines(source, fallback_encodings=[]):
with open(source, errors="ignore") as f: with open(source, errors="ignore") as f:
return f.readlines() return f.readlines()
def exclMarkerWorker(fastcov_sources, chunk, exclude_branches_sw, include_branches_sw, fallback_encodings): def exclProcessSource(fastcov_sources, source, exclude_branches_sw, include_branches_sw, fallback_encodings):
for source in chunk: start_line = 0
start_line = 0 end_line = 0
end_line = 0 # Start enumeration at line 1 because the first line of the file is line 1 not 0
# Start enumeration at line 1 because the first line of the file is line 1 not 0 for i, line in enumerate(getSourceLines(source, fallback_encodings), 1):
for i, line in enumerate(getSourceLines(source, fallback_encodings), 1): # Cycle through test names (likely only 1)
# Cycle through test names (likely only 1) for test_name in fastcov_sources[source]:
for test_name in fastcov_sources[source]: fastcov_data = fastcov_sources[source][test_name]
fastcov_data = fastcov_sources[source][test_name]
# Build line to function dict so can quickly delete by line number # Build line to function dict so can quickly delete by line number
line_to_func = {} line_to_func = {}
for f in fastcov_data["functions"].keys(): for f in fastcov_data["functions"].keys():
l = fastcov_data["functions"][f]["start_line"] l = fastcov_data["functions"][f]["start_line"]
if l not in line_to_func: if l not in line_to_func:
line_to_func[l] = set() line_to_func[l] = set()
line_to_func[l].add(f) line_to_func[l].add(f)
if i in fastcov_data["branches"]: if i in fastcov_data["branches"]:
del_exclude_br = exclude_branches_sw and any(line.lstrip().startswith(e) for e in exclude_branches_sw) del_exclude_br = exclude_branches_sw and any(line.lstrip().startswith(e) for e in exclude_branches_sw)
del_include_br = include_branches_sw and all(not line.lstrip().startswith(e) for e in include_branches_sw) del_include_br = include_branches_sw and all(not line.lstrip().startswith(e) for e in include_branches_sw)
if del_exclude_br or del_include_br: if del_exclude_br or del_include_br:
del fastcov_data["branches"][i] del fastcov_data["branches"][i]
if "LCOV_EXCL" not in line: if "LCOV_EXCL" not in line:
continue
if "LCOV_EXCL_LINE" in line:
for key in ["lines", "branches"]:
if i in fastcov_data[key]:
del fastcov_data[key][i]
if i in line_to_func:
for key in line_to_func[i]:
if key in fastcov_data["functions"]:
del fastcov_data["functions"][key]
elif "LCOV_EXCL_START" in line:
start_line = i
elif "LCOV_EXCL_STOP" in line:
end_line = i
if not start_line:
end_line = 0
continue continue
if "LCOV_EXCL_LINE" in line: for key in ["lines", "branches"]:
for key in ["lines", "branches"]: for line_num in list(fastcov_data[key].keys()):
if i in fastcov_data[key]: if start_line <= line_num <= end_line:
del fastcov_data[key][i] del fastcov_data[key][line_num]
if i in line_to_func:
for key in line_to_func[i]: for line_num in range(start_line, end_line):
if line_num in line_to_func:
for key in line_to_func[line_num]:
if key in fastcov_data["functions"]: if key in fastcov_data["functions"]:
del fastcov_data["functions"][key] del fastcov_data["functions"][key]
elif "LCOV_EXCL_START" in line:
start_line = i
elif "LCOV_EXCL_STOP" in line:
end_line = i
if not start_line: start_line = end_line = 0
end_line = 0 elif "LCOV_EXCL_BR_LINE" in line:
continue if i in fastcov_data["branches"]:
del fastcov_data["branches"][i]
for key in ["lines", "branches"]: def exclMarkerWorker(fastcov_sources, chunk, exclude_branches_sw, include_branches_sw, fallback_encodings):
for line_num in list(fastcov_data[key].keys()): for source in chunk:
if start_line <= line_num <= end_line: try:
del fastcov_data[key][line_num] exclProcessSource(fastcov_sources, source, exclude_branches_sw, include_branches_sw, fallback_encodings)
except FileNotFoundError:
for line_num in range(start_line, end_line): logging.error("Could not find '%s' to scan for exclusion markers...", source)
if line_num in line_to_func: setExitCode("excl_not_found") # Set exit code because of error
for key in line_to_func[line_num]:
if key in fastcov_data["functions"]:
del fastcov_data["functions"][key]
start_line = end_line = 0
elif "LCOV_EXCL_BR_LINE" in line:
if i in fastcov_data["branches"]:
del fastcov_data["branches"][i]
def scanExclusionMarkers(fastcov_json, jobs, exclude_branches_sw, include_branches_sw, min_chunk_size, fallback_encodings): def scanExclusionMarkers(fastcov_json, jobs, exclude_branches_sw, include_branches_sw, min_chunk_size, fallback_encodings):
chunk_size = max(min_chunk_size, int(len(fastcov_json["sources"]) / jobs) + 1) chunk_size = max(min_chunk_size, int(len(fastcov_json["sources"]) / jobs) + 1)
@ -551,8 +573,8 @@ def parseAndCombine(paths):
elif path.endswith(".info"): elif path.endswith(".info"):
report = parseInfo(path) report = parseInfo(path)
else: else:
sys.stderr.write("Currently only fastcov .json and lcov .info supported for combine operations, aborting due to {}...\n".format(path)) logging.error("Currently only fastcov .json and lcov .info supported for combine operations, aborting due to %s...\n", path)
sys.exit(3) sys.exit(EXIT_CODES["unsupported_coverage_format"])
# In order for sorting to work later when we serialize, # In order for sorting to work later when we serialize,
# make sure integer keys are int # make sure integer keys are int
@ -592,7 +614,7 @@ def getGcovCoverage(args):
if args.zerocounters: if args.zerocounters:
removeFiles(coverage_files) removeFiles(coverage_files)
logging.info("Removed {} .gcda files".format(len(coverage_files))) logging.info("Removed {} .gcda files".format(len(coverage_files)))
sys.exit(0) sys.exit()
# Fire up one gcov per cpu and start processing gcdas # Fire up one gcov per cpu and start processing gcdas
gcov_filter_options = getGcovFilterOptions(args) gcov_filter_options = getGcovFilterOptions(args)
@ -667,13 +689,13 @@ def checkPythonVersion(version):
"""Exit if the provided python version is less than the supported version.""" """Exit if the provided python version is less than the supported version."""
if version < MINIMUM_PYTHON: if version < MINIMUM_PYTHON:
sys.stderr.write("Minimum python version {} required, found {}\n".format(tupleToDotted(MINIMUM_PYTHON), tupleToDotted(version))) sys.stderr.write("Minimum python version {} required, found {}\n".format(tupleToDotted(MINIMUM_PYTHON), tupleToDotted(version)))
sys.exit(1) sys.exit(EXIT_CODES["python_version"])
def checkGcovVersion(version): def checkGcovVersion(version):
"""Exit if the provided gcov version is less than the supported version.""" """Exit if the provided gcov version is less than the supported version."""
if version < MINIMUM_GCOV: if version < MINIMUM_GCOV:
sys.stderr.write("Minimum gcov version {} required, found {}\n".format(tupleToDotted(MINIMUM_GCOV), tupleToDotted(version))) sys.stderr.write("Minimum gcov version {} required, found {}\n".format(tupleToDotted(MINIMUM_GCOV), tupleToDotted(version)))
sys.exit(2) sys.exit(EXIT_CODES["gcov_version"])
def setupLogging(quiet, verbose): def setupLogging(quiet, verbose):
handler = logging.StreamHandler() handler = logging.StreamHandler()
@ -711,6 +733,10 @@ def main():
# Dump to desired file format # Dump to desired file format
dumpFile(fastcov_json, args) dumpFile(fastcov_json, args)
# If there was an error along the way, but we still completed the pipeline...
if EXIT_CODE:
sys.exit(EXIT_CODE)
# Set package version... it's way down here so that we can call tupleToDotted # Set package version... it's way down here so that we can call tupleToDotted
__version__ = tupleToDotted(FASTCOV_VERSION) __version__ = tupleToDotted(FASTCOV_VERSION)