mirror of https://github.com/nlohmann/json.git
⬆️ updated fastcov
Niels Lohmann
parent
da279234d5
commit
4676f759e8
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@ -35,9 +35,9 @@ if(JSON_Coverage)
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set(CMAKE_CXX_FLAGS "--coverage -g -O0 -fprofile-arcs -ftest-coverage")
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# from https://github.com/RWTH-HPC/CMake-codecov/blob/master/cmake/FindGcov.cmake
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#get_filename_component(COMPILER_PATH "${CMAKE_CXX_COMPILER}" PATH)
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#string(REGEX MATCH "^[0-9]+" GCC_VERSION "${CMAKE_CXX_COMPILER_VERSION}")
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#find_program(GCOV_BIN NAMES gcov-${GCC_VERSION} gcov HINTS ${COMPILER_PATH})
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get_filename_component(COMPILER_PATH "${CMAKE_CXX_COMPILER}" PATH)
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string(REGEX MATCH "^[0-9]+" GCC_VERSION "${CMAKE_CXX_COMPILER_VERSION}")
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find_program(GCOV_BIN NAMES gcov-${GCC_VERSION} gcov HINTS ${COMPILER_PATH})
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# collect all source files from the chosen include dir
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file(GLOB_RECURSE SOURCE_FILES ${NLOHMANN_JSON_INCLUDE_BUILD_DIR}*.hpp)
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@ -55,7 +55,7 @@ if(JSON_Coverage)
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# add target to collect coverage information and generate HTML file
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# (filter script from https://stackoverflow.com/a/43726240/266378)
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add_custom_target(lcov_html2
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COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/fastcov/fastcov.py --lcov -o json.info --gcov ${GCOV_BIN} --exclude-gcov /usr 9.0.1/ test/
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COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/fastcov/fastcov.py --branch-coverage --lcov -o json.info --gcov ${GCOV_BIN}
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COMMAND gsed -i 's%build_coverage/%%g' json.info
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COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/imapdl/filterbr.py json.info > json.info.filtered.noexcept
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COMMAND genhtml --title "JSON for Modern C++" --legend --demangle-cpp --output-directory html --show-details --branch-coverage json.info.filtered.noexcept
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@ -13,7 +13,7 @@
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$ cd build_dir
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$ ./fastcov.py --zerocounters
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$ <run unit tests>
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$ ./fastcov.py --exclude-gcov /usr/include --lcov -o report.info
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$ ./fastcov.py --exclude /usr/include test/ --lcov -o report.info
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$ genhtml -o code_coverage report.info
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"""
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@ -64,24 +64,28 @@ def getGcdaFiles(cwd, gcda_files):
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gcda_files = glob.glob(os.path.join(cwd, "**/*.gcda"), recursive=True)
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return gcda_files
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def gcovWorker(cwd, gcov, files, chunk, exclude):
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p = subprocess.Popen([gcov, "-it"] + chunk, cwd=cwd, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
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def gcovWorker(cwd, gcov, files, chunk, gcov_filter_options, branch_coverage):
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gcov_args = "-it"
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if branch_coverage:
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gcov_args += "b"
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p = subprocess.Popen([gcov, gcov_args] + chunk, cwd=cwd, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
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for line in iter(p.stdout.readline, b''):
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intermediate_json = json.loads(line.decode(sys.stdout.encoding))
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intermediate_json_files = processGcovs(intermediate_json["files"], exclude)
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intermediate_json_files = processGcovs(intermediate_json["files"], gcov_filter_options)
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for f in intermediate_json_files:
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files.append(f) #thread safe, there might be a better way to do this though
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GCOVS_TOTAL.append(len(intermediate_json["files"]))
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GCOVS_SKIPPED.append(len(intermediate_json["files"])-len(intermediate_json_files))
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p.wait()
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def processGcdas(cwd, gcov, jobs, gcda_files, exclude):
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def processGcdas(cwd, gcov, jobs, gcda_files, gcov_filter_options, branch_coverage):
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chunk_size = max(MINIMUM_CHUNK_SIZE, int(len(gcda_files) / jobs) + 1)
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threads = []
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intermediate_json_files = []
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for chunk in chunks(gcda_files, chunk_size):
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t = threading.Thread(target=gcovWorker, args=(cwd, gcov, intermediate_json_files, chunk, exclude))
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t = threading.Thread(target=gcovWorker, args=(cwd, gcov, intermediate_json_files, chunk, gcov_filter_options, branch_coverage))
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threads.append(t)
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t.start()
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@ -91,39 +95,75 @@ def processGcdas(cwd, gcov, jobs, gcda_files, exclude):
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return intermediate_json_files
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def processGcov(gcov, files, exclude):
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for ex in exclude:
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def processGcov(gcov, files, gcov_filter_options):
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# If explicit sources were passed, check for match
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source_file = os.path.abspath(gcov["file"])
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if gcov_filter_options["sources"]:
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if source_file in gcov_filter_options["sources"]:
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files.append(gcov)
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return
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# Check include filter
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if gcov_filter_options["include"]:
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for ex in gcov_filter_options["include"]:
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if ex in gcov["file"]:
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files.append(gcov)
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break
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return
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# Check exclude filter
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for ex in gcov_filter_options["exclude"]:
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if ex in gcov["file"]:
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return
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files.append(gcov)
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def processGcovs(gcov_files, exclude):
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def processGcovs(gcov_files, gcov_filter_options):
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files = []
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for gcov in gcov_files:
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processGcov(gcov, files, exclude)
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processGcov(gcov, files, gcov_filter_options)
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return files
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def dumpToLcovInfo(cwd, intermediate, output):
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def dumpBranchCoverageToLcovInfo(f, source):
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branch_miss = 0
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branch_total = 0
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for line in source["lines"]:
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if not line["branches"]:
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continue
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branch_total += len(line["branches"])
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for i, branch in enumerate(line["branches"]):
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#Branch (<line number>, <block number>, <branch number>, <taken>)
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f.write("BRDA:%d,%d,%d,%d\n" % (line["line_number"], int(i/2), i, branch["count"]))
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branch_miss += int(branch["count"] == 0)
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f.write("BRF:%d\n" % branch_total) #Branches Found
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f.write("BRH:%d\n" % (branch_total - branch_miss)) #Branches Hit
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def dumpToLcovInfo(cwd, intermediate, output, branch_coverage):
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with open(output, "w") as f:
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for file in intermediate:
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for source in intermediate:
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#Convert to absolute path so it plays nice with genhtml
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sf = file["file"]
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if not os.path.isabs(file["file"]):
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sf = os.path.abspath(os.path.join(cwd, file["file"]))
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f.write("SF:%s\n" % sf)
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sf = source["file"]
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if not os.path.isabs(source["file"]):
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sf = os.path.abspath(os.path.join(cwd, source["file"]))
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f.write("SF:%s\n" % sf) #Source File
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fn_miss = 0
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for function in file["functions"]:
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f.write("FN:%s,%s\n" % (function["start_line"], function["name"]))
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f.write("FNDA:%s,%s\n" % (function["execution_count"], function["name"]))
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fn_miss += int(not function["execution_count"] == 0)
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f.write("FNF:%s\n" % len(file["functions"]))
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f.write("FNH:%s\n" % (len(file["functions"]) - fn_miss))
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for function in source["functions"]:
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f.write("FN:%d,%s\n" % (function["start_line"], function["name"])) #Function Start Line
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f.write("FNDA:%d,%s\n" % (function["execution_count"], function["name"])) #Function Hits
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fn_miss += int(function["execution_count"] == 0)
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f.write("FNF:%d\n" % len(source["functions"])) #Functions Found
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f.write("FNH:%d\n" % (len(source["functions"]) - fn_miss)) #Functions Hit
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if branch_coverage:
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dumpBranchCoverageToLcovInfo(f, source)
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line_miss = 0
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for line in file["lines"]:
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f.write("DA:%s,%s\n" % (line["line_number"], line["count"]))
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line_miss += int(not line["count"] == 0)
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f.write("LF:%s\n" % len(file["lines"]))
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f.write("LH:%s\n" % (len(file["lines"]) - line_miss))
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for line in source["lines"]:
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f.write("DA:%d,%d\n" % (line["line_number"], line["count"])) #Line
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line_miss += int(line["count"] == 0)
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f.write("LF:%d\n" % len(source["lines"])) #Lines Found
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f.write("LH:%d\n" % (len(source["lines"]) - line_miss)) #Lines Hit
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f.write("end_of_record\n")
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def dumpToGcovJson(intermediate, output):
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@ -134,6 +174,13 @@ def log(line):
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if not args.quiet:
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print(line)
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def getGcovFilterOptions(args):
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return {
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"sources": set([os.path.abspath(s) for s in args.sources]), #Make paths absolute
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"include": args.includepost,
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"exclude": args.excludepost,
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}
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def main(args):
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# Need at least gcov 9.0.0 because that's when gcov JSON and stdout streaming was introduced
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current_gcov_version = getGcovVersion(args.gcov)
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@ -154,7 +201,8 @@ def main(args):
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log("%d .gcda files removed" % len(gcda_files))
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return
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intermediate_json_files = processGcdas(args.cdirectory, args.gcov, args.jobs, gcda_files, args.excludepost)
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gcov_filter_options = getGcovFilterOptions(args)
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intermediate_json_files = processGcdas(args.cdirectory, args.gcov, args.jobs, gcda_files, gcov_filter_options, args.branchcoverage)
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gcov_total = sum(GCOVS_TOTAL)
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gcov_skipped = sum(GCOVS_SKIPPED)
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@ -162,7 +210,7 @@ def main(args):
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log("%d .gcov files processed by fastcov (%d skipped)" % (gcov_total - gcov_skipped, gcov_skipped))
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if args.lcov:
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dumpToLcovInfo(args.cdirectory, intermediate_json_files, args.output)
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dumpToLcovInfo(args.cdirectory, intermediate_json_files, args.output, args.branchcoverage)
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log("Created lcov info file '%s'" % args.output)
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else:
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dumpToGcovJson(intermediate_json_files, args.output)
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@ -172,18 +220,24 @@ if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='A parallel gcov wrapper for fast coverage report generation')
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parser.add_argument('-z', '--zerocounters', dest='zerocounters', action="store_true", help='Recursively delete all gcda files')
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parser.add_argument('-f', '--gcda-files', dest='gcda_files', nargs="+", default=[], help='Specify exactly which gcda files should be processed instead of recursivly searching the search directory.')
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parser.add_argument('-E', '--exclude-gcda', dest='excludepre', nargs="+", default=[], help='.gcda filter - Exclude gcda files from being processed via simple find matching (not regex)')
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parser.add_argument('-e', '--exclude-gcov', dest='excludepost', nargs="+", default=[], help='.gcov filter - Exclude gcov files from being processed via simple find matching (not regex)')
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# Enable Branch Coverage
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parser.add_argument('-b', '--branch-coverage', dest='branchcoverage', action="store_true", help='Include branch counts in the coverage report')
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parser.add_argument('-g', '--gcov', dest='gcov', default='gcov', help='which gcov binary to use')
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# Filtering Options
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parser.add_argument('-s', '--source-files', dest='sources', nargs="+", default=[], help='Filter: Specify exactly which source files should be included in the final report. Paths must be either absolute or relative to current directory.')
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parser.add_argument('-e', '--exclude', dest='excludepost', nargs="+", default=[], help='Filter: Exclude source files from final report if they contain one of the provided substrings (i.e. /usr/include test/, etc.)')
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parser.add_argument('-i', '--include', dest='includepost', nargs="+", default=[], help='Filter: Only include source files in final report that contain one of the provided substrings (i.e. src/ etc.)')
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parser.add_argument('-f', '--gcda-files', dest='gcda_files', nargs="+", default=[], help='Filter: Specify exactly which gcda files should be processed instead of recursively searching the search directory.')
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parser.add_argument('-E', '--exclude-gcda', dest='excludepre', nargs="+", default=[], help='Filter: Exclude gcda files from being processed via simple find matching (not regex)')
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parser.add_argument('-g', '--gcov', dest='gcov', default='gcov', help='Which gcov binary to use')
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parser.add_argument('-d', '--search-directory', dest='directory', default=".", help='Base directory to recursively search for gcda files (default: .)')
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parser.add_argument('-c', '--compiler-directory', dest='cdirectory', default=".", help='Base directory compiler was invoked from (default: .)')
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parser.add_argument('-j', '--jobs', dest='jobs', type=int, default=multiprocessing.cpu_count(), help='Number of parallel gcov to spawn (default: %d).' % multiprocessing.cpu_count())
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parser.add_argument('-o', '--output', dest='output', default="coverage.json", help='Name of output file (default: coverage.json)')
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parser.add_argument('-i', '--lcov', dest='lcov', action="store_true", help='Output in lcov info format instead of gcov json')
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parser.add_argument('-l', '--lcov', dest='lcov', action="store_true", help='Output in lcov info format instead of gcov json')
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parser.add_argument('-q', '--quiet', dest='quiet', action="store_true", help='Suppress output to stdout')
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args = parser.parse_args()
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main(args)
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@ -1,218 +0,0 @@
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#!/usr/bin/env python3
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"""
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Author: Bryan Gillespie
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Legacy version... supports versions 7.1.0 <= GCC < 9.0.0
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A massively parallel gcov wrapper for generating intermediate coverage formats fast
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The goal of fastcov is to generate code coverage intermediate formats as fast as possible
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(ideally < 1 second), even for large projects with hundreds of gcda objects. The intermediate
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formats may then be consumed by a report generator such as lcov's genhtml, or a dedicated front
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end such as coveralls.
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Sample Usage:
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$ cd build_dir
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$ ./fastcov.py --exclude-gcov /usr/include --lcov -o report.info
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$ genhtml -o code_coverage report.info
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"""
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import re
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import os
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import glob
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import json
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import argparse
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import subprocess
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import multiprocessing
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from random import shuffle
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MINIMUM_GCOV = (7,1,0)
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MINIMUM_CHUNK_SIZE = 10
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def chunks(l, n):
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"""Yield successive n-sized chunks from l."""
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for i in range(0, len(l), n):
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yield l[i:i + n]
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def getGcovVersion(gcov):
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p = subprocess.Popen([gcov, "-v"], stdout=subprocess.PIPE)
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output = p.communicate()[0].decode('UTF-8')
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p.wait()
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version_str = re.search(r'\s([\d.]+)\s', output.split("\n")[0]).group(1)
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version = tuple(map(int, version_str.split(".")))
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return version
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def removeFiles(files):
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for file in files:
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os.remove(file)
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def getFilteredGcdaFiles(gcda_files, exclude):
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def excludeGcda(gcda):
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for ex in exclude:
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if ex in gcda:
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return False
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return True
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return list(filter(excludeGcda, gcda_files))
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def getGcdaFiles(cwd, gcda_files, exclude):
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if not gcda_files:
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gcda_files = glob.glob(os.path.join(cwd, "**/*.gcda"), recursive=True)
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if exclude:
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return getFilteredGcdaFiles(gcda_files, exclude)
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return gcda_files
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def getGcovFiles(cwd):
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return glob.glob(os.path.join(cwd, "*.gcov"))
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def filterGcovFiles(gcov):
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with open(gcov) as f:
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path = f.readline()[5:]
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for ex in args.exclude:
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if ex in path:
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return False
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return True
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def processGcdasPre9(cwd, gcov, jobs, gcda_files):
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chunk_size = min(MINIMUM_CHUNK_SIZE, int(len(gcda_files) / jobs) + 1)
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processes = []
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# shuffle(gcda_files) # improves performance by preventing any one gcov from bottlenecking on a list of sequential, expensive gcdas (?)
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for chunk in chunks(gcda_files, chunk_size):
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processes.append(subprocess.Popen([gcov, "-i"] + chunk, cwd=cwd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL))
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for p in processes:
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p.wait()
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def processGcdasPre9Accurate(cwd, gcov, gcda_files, exclude):
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intermediate_json_files = []
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for gcda in gcda_files:
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subprocess.Popen([gcov, "-i", gcda], cwd=cwd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL).wait()
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gcov_files = getGcovFiles(cwd)
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intermediate_json_files += processGcovs(gcov_files, exclude)
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removeFiles(gcov_files)
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return intermediate_json_files
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def processGcovLine(file, line):
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line_type, data = line.split(":", 1)
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if line_type == "lcount":
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num, count = data.split(",")
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hit = (count != 0)
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file["lines_hit"] += int(hit)
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file["lines"].append({
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"branches": [],
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"line_number": num,
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"count": count,
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"unexecuted_block": not hit
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})
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elif line_type == "function":
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num, count, name = data.split(",")
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hit = (count != 0)
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file["functions_hit"] += int(hit)
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file["functions"].append({
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"name": name,
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"execution_count": count,
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"start_line": num,
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"end_line": None,
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"blocks": None,
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"blocks_executed": None,
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"demangled_name": None
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})
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def processGcov(files, gcov, exclude):
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with open(gcov) as f:
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path = f.readline()[5:].rstrip()
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for ex in exclude:
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if ex in path:
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return False
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file = {
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"file": path,
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"functions": [],
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"functions_hit": 0,
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"lines": [],
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"lines_hit": 0
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}
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for line in f:
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processGcovLine(file, line.rstrip())
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files.append(file)
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return True
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def processGcovs(gcov_files, exclude):
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files = []
|
||||
filtered = 0
|
||||
for gcov in gcov_files:
|
||||
filtered += int(not processGcov(files, gcov, exclude))
|
||||
print("Skipped %d .gcov files" % filtered)
|
||||
return files
|
||||
|
||||
def dumpToLcovInfo(intermediate, output):
|
||||
with open(output, "w") as f:
|
||||
for file in intermediate:
|
||||
f.write("SF:%s\n" % file["file"])
|
||||
for function in file["functions"]:
|
||||
f.write("FN:%s,%s\n" % (function["start_line"], function["name"]))
|
||||
f.write("FNDA:%s,%s\n" % (function["execution_count"], function["name"]))
|
||||
f.write("FNF:%s\n" % len(file["functions"]))
|
||||
f.write("FNH:%s\n" % file["functions_hit"])
|
||||
for line in file["lines"]:
|
||||
f.write("DA:%s,%s\n" % (line["line_number"], line["count"]))
|
||||
f.write("LF:%s\n" % len(file["lines"]))
|
||||
f.write("LH:%s\n" % file["lines_hit"])
|
||||
f.write("end_of_record\n")
|
||||
|
||||
def dumpToGcovJson(intermediate, output):
|
||||
with open(output, "w") as f:
|
||||
json.dump(intermediate, f)
|
||||
|
||||
def main(args):
|
||||
# Need at least gcov 7.1.0 because of bug not allowing -i in conjunction with multiple files
|
||||
# See: https://github.com/gcc-mirror/gcc/commit/41da7513d5aaaff3a5651b40edeccc1e32ea785a
|
||||
current_gcov_version = getGcovVersion(args.gcov)
|
||||
if current_gcov_version < MINIMUM_GCOV:
|
||||
print("Minimum gcov version {} required, found {}".format(".".join(map(str, MINIMUM_GCOV)), ".".join(map(str, current_gcov_version))))
|
||||
exit(1)
|
||||
|
||||
gcda_files = getGcdaFiles(args.directory, args.gcda_files, args.excludepre)
|
||||
print("Found %d .gcda files" % len(gcda_files))
|
||||
|
||||
# We "zero" the "counters" by simply deleting all gcda files
|
||||
if args.zerocounters:
|
||||
removeFiles(gcda_files)
|
||||
print("Removed %d .gcda files" % len(gcda_files))
|
||||
return
|
||||
|
||||
# If we are less than gcov 9.0.0, convert .gcov files to GCOV 9 JSON format
|
||||
processGcdasPre9(args.cdirectory, args.gcov, args.jobs, gcda_files)
|
||||
gcov_files = getGcovFiles(args.cdirectory)
|
||||
|
||||
print("Found %d .gcov files" % len(gcov_files))
|
||||
|
||||
intermediate_json_files = processGcovs(gcov_files, args.excludepost)
|
||||
removeFiles(gcov_files)
|
||||
|
||||
intermediate_json_files += processGcdasPre9Accurate(args.cdirectory, args.gcov, args.gcda_files_accurate, args.excludepost)
|
||||
|
||||
if args.lcov:
|
||||
dumpToLcovInfo(intermediate_json_files, args.output)
|
||||
else:
|
||||
dumpToGcovJson(intermediate_json_files, args.output)
|
||||
|
||||
if __name__ == '__main__':
|
||||
parser = argparse.ArgumentParser(description='A parallel gcov wrapper for fast coverage report generation')
|
||||
parser.add_argument('-z', '--zerocounters', dest='zerocounters', action="store_true", help='Recursively delete all gcda files')
|
||||
|
||||
parser.add_argument('-f', '--gcda-files', dest='gcda_files', nargs="+", default=[], help='Specify exactly which gcda files should be processed instead of recursivly searching the search directory.')
|
||||
parser.add_argument('-F', '--gcda-files-accurate', dest='gcda_files_accurate', nargs="+", default=[], help='(< gcov 9.0.0) Get accurate header coverage information for just these. These files cannot be processed in parallel')
|
||||
parser.add_argument('-E', '--exclude-gcda', dest='excludepre', nargs="+", default=[], help='.gcda filter - Exclude gcda files from being processed via simple find matching (not regex)')
|
||||
parser.add_argument('-e', '--exclude-gcov', dest='excludepost', nargs="+", default=[], help='.gcov filter - Exclude gcov files from being processed via simple find matching (not regex)')
|
||||
|
||||
parser.add_argument('-g', '--gcov', dest='gcov', default='gcov', help='which gcov binary to use')
|
||||
|
||||
parser.add_argument('-d', '--search-directory', dest='directory', default=".", help='Base directory to recursively search for gcda files (default: .)')
|
||||
parser.add_argument('-c', '--compiler-directory', dest='cdirectory', default=".", help='Base directory compiler was invoked from (default: .)')
|
||||
parser.add_argument('-j', '--jobs', dest='jobs', type=int, default=multiprocessing.cpu_count(), help='Number of parallel gcov to spawn (default: %d).' % multiprocessing.cpu_count())
|
||||
|
||||
|
||||
parser.add_argument('-o', '--output', dest='output', default="coverage.json", help='Name of output file (default: coverage.json)')
|
||||
parser.add_argument('-i', '--lcov', dest='lcov', action="store_true", help='Output in lcov info format instead of gcov json')
|
||||
args = parser.parse_args()
|
||||
main(args)
|
||||
Loading…
Reference in New Issue