mirror of
https://github.com/nlohmann/json.git
synced 2024-08-23 13:32:28 +02:00
Merge branch 'feature/fastcov' into develop
This commit is contained in:
commit
ee4028b8e4
9
Makefile
9
Makefile
|
@ -35,6 +35,7 @@ all:
|
|||
@echo "check-fast - compile and execute test suite (skip long-running tests)"
|
||||
@echo "clean - remove built files"
|
||||
@echo "coverage - create coverage information with lcov"
|
||||
@echo "coverage-fast - create coverage information with fastcov"
|
||||
@echo "cppcheck - analyze code with cppcheck"
|
||||
@echo "cpplint - analyze code with cpplint"
|
||||
@echo "clang_tidy - analyze code with Clang-Tidy"
|
||||
|
@ -82,6 +83,14 @@ coverage:
|
|||
cd build_coverage ; ninja lcov_html
|
||||
open build_coverage/test/html/index.html
|
||||
|
||||
coverage-fast:
|
||||
rm -fr build_coverage
|
||||
mkdir build_coverage
|
||||
cd build_coverage ; CXX=$(COMPILER_DIR)/g++ cmake .. -GNinja -DJSON_Coverage=ON -DJSON_MultipleHeaders=ON
|
||||
cd build_coverage ; ninja
|
||||
cd build_coverage ; ctest -E '.*_default' -j10
|
||||
cd build_coverage ; ninja fastcov_html
|
||||
open build_coverage/test/html/index.html
|
||||
|
||||
##########################################################################
|
||||
# documentation tests
|
||||
|
|
|
@ -1281,9 +1281,11 @@ The library itself consists of a single header file licensed under the MIT licen
|
|||
- [**doctest**](https://github.com/onqtam/doctest) for the unit tests
|
||||
- [**Doozer**](https://doozer.io) for [continuous integration](https://doozer.io/nlohmann/json) on Linux (CentOS, Raspbian, Fedora)
|
||||
- [**Doxygen**](http://www.stack.nl/~dimitri/doxygen/) to generate [documentation](https://nlohmann.github.io/json/)
|
||||
- [**fastcov**](https://github.com/RPGillespie6/fastcov) to process coverage information
|
||||
- [**git-update-ghpages**](https://github.com/rstacruz/git-update-ghpages) to upload the documentation to gh-pages
|
||||
- [**GitHub Changelog Generator**](https://github.com/skywinder/github-changelog-generator) to generate the [ChangeLog](https://github.com/nlohmann/json/blob/develop/ChangeLog.md)
|
||||
- [**Google Benchmark**](https://github.com/google/benchmark) to implement the benchmarks
|
||||
- [**lcov**](http://ltp.sourceforge.net/coverage/lcov.php) to process coverage information and create a HTML view
|
||||
- [**libFuzzer**](http://llvm.org/docs/LibFuzzer.html) to implement fuzz testing for OSS-Fuzz
|
||||
- [**OSS-Fuzz**](https://github.com/google/oss-fuzz) for continuous fuzz testing of the library ([project repository](https://github.com/google/oss-fuzz/tree/master/projects/json))
|
||||
- [**Probot**](https://probot.github.io) for automating maintainer tasks such as closing stale issues, requesting missing information, or detecting toxic comments.
|
||||
|
|
|
@ -27,17 +27,17 @@ endif()
|
|||
|
||||
if(JSON_Coverage)
|
||||
message(STATUS "Building test suite with coverage information")
|
||||
#if(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
|
||||
# message(FATAL_ERROR "JSON_Coverage requires GCC.")
|
||||
#endif()
|
||||
if(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
|
||||
message(FATAL_ERROR "JSON_Coverage requires GCC.")
|
||||
endif()
|
||||
|
||||
# enable profiling
|
||||
set(CMAKE_CXX_FLAGS "--coverage -g -O0 -fprofile-arcs -ftest-coverage")
|
||||
|
||||
# from https://github.com/RWTH-HPC/CMake-codecov/blob/master/cmake/FindGcov.cmake
|
||||
#get_filename_component(COMPILER_PATH "${CMAKE_CXX_COMPILER}" PATH)
|
||||
#string(REGEX MATCH "^[0-9]+" GCC_VERSION "${CMAKE_CXX_COMPILER_VERSION}")
|
||||
#find_program(GCOV_BIN NAMES gcov-${GCC_VERSION} gcov HINTS ${COMPILER_PATH})
|
||||
get_filename_component(COMPILER_PATH "${CMAKE_CXX_COMPILER}" PATH)
|
||||
string(REGEX MATCH "^[0-9]+" GCC_VERSION "${CMAKE_CXX_COMPILER_VERSION}")
|
||||
find_program(GCOV_BIN NAMES gcov-${GCC_VERSION} gcov HINTS ${COMPILER_PATH})
|
||||
|
||||
# collect all source files from the chosen include dir
|
||||
file(GLOB_RECURSE SOURCE_FILES ${NLOHMANN_JSON_INCLUDE_BUILD_DIR}*.hpp)
|
||||
|
@ -46,11 +46,18 @@ if(JSON_Coverage)
|
|||
# (filter script from https://stackoverflow.com/a/43726240/266378)
|
||||
add_custom_target(lcov_html
|
||||
COMMAND lcov --directory . --capture --output-file json.info --rc lcov_branch_coverage=1
|
||||
COMMAND lcov -e json.info ${SOURCE_FILES} --output-file json.info.filtered --rc lcov_branch_coverage=1
|
||||
COMMAND lcov -e json.info ${SOURCE_FILES} --output-file json.info.filtered --gcov-tool ${GCOV_BIN} --rc lcov_branch_coverage=1
|
||||
COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/imapdl/filterbr.py json.info.filtered > json.info.filtered.noexcept
|
||||
COMMAND genhtml --title "JSON for Modern C++" --legend --demangle-cpp --output-directory html --show-details --branch-coverage json.info.filtered.noexcept
|
||||
COMMENT "Generating HTML report test/html/index.html"
|
||||
)
|
||||
|
||||
add_custom_target(fastcov_html
|
||||
COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/fastcov/fastcov.py --branch-coverage --lcov -o json.info --gcov ${GCOV_BIN} --compiler-directory ${CMAKE_BINARY_DIR} --source-files ${SOURCE_FILES}
|
||||
COMMAND ${CMAKE_SOURCE_DIR}/test/thirdparty/imapdl/filterbr.py json.info > json.info.noexcept
|
||||
COMMAND genhtml --title "JSON for Modern C++" --legend --demangle-cpp --output-directory html --show-details --branch-coverage json.info.noexcept
|
||||
COMMENT "Generating HTML report test/html/index.html"
|
||||
)
|
||||
endif()
|
||||
|
||||
#############################################################################
|
||||
|
|
21
test/thirdparty/fastcov/LICENSE
vendored
Normal file
21
test/thirdparty/fastcov/LICENSE
vendored
Normal file
|
@ -0,0 +1,21 @@
|
|||
The MIT License
|
||||
|
||||
Copyright (c) 2018-2019 Bryan Gillespie
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
46
test/thirdparty/fastcov/README.md
vendored
Normal file
46
test/thirdparty/fastcov/README.md
vendored
Normal file
|
@ -0,0 +1,46 @@
|
|||
# fastcov
|
||||
A massively parallel gcov wrapper for generating intermediate coverage formats *fast*
|
||||
|
||||
The goal of fastcov is to generate code coverage intermediate formats *as fast as possible* (ideally < 1 second), even for large projects with hundreds of gcda objects. The intermediate formats may then be consumed by a report generator such as lcov's genhtml, or a dedicated front end such as coveralls. fastcov was originally designed to be a drop-in replacement for lcov (application coverage only, not kernel coverage).
|
||||
|
||||
Currently the only intermediate formats supported are gcov json format and lcov info format. Adding support for other formats should require just a few lines of python to transform gcov json format to the desired shape.
|
||||
|
||||
In order to achieve the massive speed gains, a few constraints apply:
|
||||
|
||||
1. GCC version >= 9.0.0
|
||||
|
||||
These versions of GCOV have support for JSON intermediate format as well as streaming report data straight to stdout
|
||||
|
||||
2. Object files must be either be built:
|
||||
|
||||
- Using absolute paths for all `-I` flags passed to the compiler
|
||||
- Invoking the compiler from the same root directory
|
||||
|
||||
If you use CMake, you are almost certainly satisfying the second constraint (unless you care about `ExternalProject` coverage).
|
||||
|
||||
## Sample Usage:
|
||||
```bash
|
||||
$ cd build_dir
|
||||
$ fastcov.py --zerocounters
|
||||
$ <run unit tests>
|
||||
$ fastcov.py --exclude /usr/include --lcov -o report.info
|
||||
$ genhtml -o code_coverage report.info
|
||||
```
|
||||
|
||||
## Legacy fastcov
|
||||
|
||||
It is possible to reap most of the benefits of fastcov for GCC version < 9.0.0 and >= 7.1.0. However, there will be a *potential* header file loss of correctness.
|
||||
|
||||
`fastcov_legacy.py` can be used with pre GCC-9 down to GCC 7.1.0 but with a few penalties due to gcov limitations. This is because running gcov in parallel generates .gcov header reports in parallel which overwrite each other. This isn't a problem unless your header files have actual logic (i.e. header only library) that you want to measure coverage for. Use the `-F` flag to specify which gcda files should not be run in parallel in order to capture accurate header file data just for those. I don't plan on supporting `fastcov_legacy.py` aside from basic bug fixes.
|
||||
|
||||
## Benchmarks
|
||||
|
||||
Anecdotal testing on my own projects indicate that fastcov is over 100x faster than lcov and over 30x faster than gcovr:
|
||||
|
||||
Project Size: ~250 .gcda, ~500 .gcov generated by gcov
|
||||
|
||||
Time to process all gcda and parse all gcov:
|
||||
|
||||
- fastcov: ~700ms
|
||||
- lcov: ~90s
|
||||
- gcovr: ~30s
|
372
test/thirdparty/fastcov/fastcov.py
vendored
Executable file
372
test/thirdparty/fastcov/fastcov.py
vendored
Executable file
|
@ -0,0 +1,372 @@
|
|||
#!/usr/bin/env python3
|
||||
"""
|
||||
Author: Bryan Gillespie
|
||||
|
||||
A massively parallel gcov wrapper for generating intermediate coverage formats fast
|
||||
|
||||
The goal of fastcov is to generate code coverage intermediate formats as fast as possible
|
||||
(ideally < 1 second), even for large projects with hundreds of gcda objects. The intermediate
|
||||
formats may then be consumed by a report generator such as lcov's genhtml, or a dedicated front
|
||||
end such as coveralls.
|
||||
|
||||
Sample Usage:
|
||||
$ cd build_dir
|
||||
$ ./fastcov.py --zerocounters
|
||||
$ <run unit tests>
|
||||
$ ./fastcov.py --exclude /usr/include test/ --lcov -o report.info
|
||||
$ genhtml -o code_coverage report.info
|
||||
"""
|
||||
|
||||
import re
|
||||
import os
|
||||
import sys
|
||||
import glob
|
||||
import json
|
||||
import time
|
||||
import argparse
|
||||
import threading
|
||||
import subprocess
|
||||
import multiprocessing
|
||||
|
||||
MINIMUM_GCOV = (9,0,0)
|
||||
MINIMUM_CHUNK_SIZE = 5
|
||||
|
||||
# Interesting metrics
|
||||
START_TIME = time.time()
|
||||
GCOVS_TOTAL = []
|
||||
GCOVS_SKIPPED = []
|
||||
|
||||
def chunks(l, n):
|
||||
"""Yield successive n-sized chunks from l."""
|
||||
for i in range(0, len(l), n):
|
||||
yield l[i:i + n]
|
||||
|
||||
def stopwatch():
|
||||
"""Return number of seconds since last time this was called"""
|
||||
global START_TIME
|
||||
end_time = time.time()
|
||||
delta = end_time - START_TIME
|
||||
START_TIME = end_time
|
||||
return delta
|
||||
|
||||
def parseVersionFromLine(version_str):
|
||||
"""Given a string containing a dotted integer version, parse out integers and return as tuple"""
|
||||
version = re.search(r'(\d+\.\d+\.\d+)[^\.]', version_str)
|
||||
|
||||
if not version:
|
||||
return (0,0,0)
|
||||
|
||||
return tuple(map(int, version.group(1).split(".")))
|
||||
|
||||
def getGcovVersion(gcov):
|
||||
p = subprocess.Popen([gcov, "-v"], stdout=subprocess.PIPE)
|
||||
output = p.communicate()[0].decode('UTF-8')
|
||||
p.wait()
|
||||
return parseVersionFromLine(output.split("\n")[0])
|
||||
|
||||
def removeFiles(files):
|
||||
for file in files:
|
||||
os.remove(file)
|
||||
|
||||
def getFilteredGcdaFiles(gcda_files, exclude):
|
||||
def excludeGcda(gcda):
|
||||
for ex in exclude:
|
||||
if ex in gcda:
|
||||
return False
|
||||
return True
|
||||
return list(filter(excludeGcda, gcda_files))
|
||||
|
||||
def getGcdaFiles(cwd, gcda_files):
|
||||
if not gcda_files:
|
||||
gcda_files = glob.glob(os.path.join(os.path.abspath(cwd), "**/*.gcda"), recursive=True)
|
||||
return gcda_files
|
||||
|
||||
def gcovWorker(cwd, gcov, files, chunk, gcov_filter_options, branch_coverage):
|
||||
gcov_args = "-it"
|
||||
if branch_coverage:
|
||||
gcov_args += "b"
|
||||
|
||||
p = subprocess.Popen([gcov, gcov_args] + chunk, cwd=cwd, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
|
||||
for line in iter(p.stdout.readline, b''):
|
||||
intermediate_json = json.loads(line.decode(sys.stdout.encoding))
|
||||
intermediate_json_files = processGcovs(cwd, intermediate_json["files"], gcov_filter_options)
|
||||
for f in intermediate_json_files:
|
||||
files.append(f) #thread safe, there might be a better way to do this though
|
||||
GCOVS_TOTAL.append(len(intermediate_json["files"]))
|
||||
GCOVS_SKIPPED.append(len(intermediate_json["files"])-len(intermediate_json_files))
|
||||
p.wait()
|
||||
|
||||
def processGcdas(cwd, gcov, jobs, gcda_files, gcov_filter_options, branch_coverage):
|
||||
chunk_size = max(MINIMUM_CHUNK_SIZE, int(len(gcda_files) / jobs) + 1)
|
||||
|
||||
threads = []
|
||||
intermediate_json_files = []
|
||||
for chunk in chunks(gcda_files, chunk_size):
|
||||
t = threading.Thread(target=gcovWorker, args=(cwd, gcov, intermediate_json_files, chunk, gcov_filter_options, branch_coverage))
|
||||
threads.append(t)
|
||||
t.start()
|
||||
|
||||
log("Spawned %d gcov threads, each processing at most %d gcda files" % (len(threads), chunk_size))
|
||||
for t in threads:
|
||||
t.join()
|
||||
|
||||
return intermediate_json_files
|
||||
|
||||
def processGcov(cwd, gcov, files, gcov_filter_options):
|
||||
# Add absolute path
|
||||
gcov["file_abs"] = os.path.abspath(os.path.join(cwd, gcov["file"]))
|
||||
|
||||
# If explicit sources were passed, check for match
|
||||
if gcov_filter_options["sources"]:
|
||||
if gcov["file_abs"] in gcov_filter_options["sources"]:
|
||||
files.append(gcov)
|
||||
return
|
||||
|
||||
# Check include filter
|
||||
if gcov_filter_options["include"]:
|
||||
for ex in gcov_filter_options["include"]:
|
||||
if ex in gcov["file"]:
|
||||
files.append(gcov)
|
||||
break
|
||||
return
|
||||
|
||||
# Check exclude filter
|
||||
for ex in gcov_filter_options["exclude"]:
|
||||
if ex in gcov["file"]:
|
||||
return
|
||||
|
||||
files.append(gcov)
|
||||
|
||||
def processGcovs(cwd, gcov_files, gcov_filter_options):
|
||||
files = []
|
||||
for gcov in gcov_files:
|
||||
processGcov(cwd, gcov, files, gcov_filter_options)
|
||||
return files
|
||||
|
||||
def dumpBranchCoverageToLcovInfo(f, branches):
|
||||
branch_miss = 0
|
||||
for line_num, branch_counts in branches.items():
|
||||
for i, count in enumerate(branch_counts):
|
||||
#Branch (<line number>, <block number>, <branch number>, <taken>)
|
||||
f.write("BRDA:%s,%d,%d,%d\n" % (line_num, int(i/2), i, count))
|
||||
branch_miss += int(count == 0)
|
||||
f.write("BRF:%d\n" % len(branches)) #Branches Found
|
||||
f.write("BRH:%d\n" % (len(branches) - branch_miss)) #Branches Hit
|
||||
|
||||
def dumpToLcovInfo(fastcov_json, output):
|
||||
with open(output, "w") as f:
|
||||
for sf, data in fastcov_json["sources"].items():
|
||||
f.write("SF:%s\n" % sf) #Source File
|
||||
|
||||
fn_miss = 0
|
||||
for function, fdata in data["functions"].items():
|
||||
f.write("FN:%d,%s\n" % (fdata["start_line"], function)) #Function Start Line
|
||||
f.write("FNDA:%d,%s\n" % (fdata["execution_count"], function)) #Function Hits
|
||||
fn_miss += int(fdata["execution_count"] == 0)
|
||||
f.write("FNF:%d\n" % len(data["functions"])) #Functions Found
|
||||
f.write("FNH:%d\n" % (len(data["functions"]) - fn_miss)) #Functions Hit
|
||||
|
||||
if data["branches"]:
|
||||
dumpBranchCoverageToLcovInfo(f, data["branches"])
|
||||
|
||||
line_miss = 0
|
||||
for line_num, count in data["lines"].items():
|
||||
f.write("DA:%s,%d\n" % (line_num, count)) #Line
|
||||
line_miss += int(count == 0)
|
||||
f.write("LF:%d\n" % len(data["lines"])) #Lines Found
|
||||
f.write("LH:%d\n" % (len(data["lines"]) - line_miss)) #Lines Hit
|
||||
f.write("end_of_record\n")
|
||||
|
||||
def exclMarkerWorker(fastcov_sources, chunk):
|
||||
for source in chunk:
|
||||
# If there are no covered lines, skip
|
||||
if not fastcov_sources[source]["lines"]:
|
||||
continue
|
||||
|
||||
start_line = 0
|
||||
end_line = 0
|
||||
with open(source) as f:
|
||||
for i, line in enumerate(f, 1): #Start enumeration at line 1
|
||||
if not "LCOV_EXCL" in line:
|
||||
continue
|
||||
|
||||
if "LCOV_EXCL_LINE" in line:
|
||||
if str(i) in fastcov_sources[source]["lines"]:
|
||||
del fastcov_sources[source]["lines"][str(i)]
|
||||
if str(i) in fastcov_sources[source]["branches"]:
|
||||
del fastcov_sources[source]["branches"][str(i)]
|
||||
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
|
||||
|
||||
for key in ["lines", "branches"]:
|
||||
for line_num in list(fastcov_sources[source][key].keys()):
|
||||
if int(line_num) <= end_line and int(line_num) >= start_line:
|
||||
del fastcov_sources[source][key][line_num]
|
||||
|
||||
start_line = end_line = 0
|
||||
|
||||
def scanExclusionMarkers(fastcov_json, jobs):
|
||||
chunk_size = max(MINIMUM_CHUNK_SIZE, int(len(fastcov_json["sources"]) / jobs) + 1)
|
||||
|
||||
threads = []
|
||||
for chunk in chunks(list(fastcov_json["sources"].keys()), chunk_size):
|
||||
t = threading.Thread(target=exclMarkerWorker, args=(fastcov_json["sources"], chunk))
|
||||
threads.append(t)
|
||||
t.start()
|
||||
|
||||
log("Spawned %d threads each scanning at most %d source files" % (len(threads), chunk_size))
|
||||
for t in threads:
|
||||
t.join()
|
||||
|
||||
def distillFunction(function_raw, functions):
|
||||
function_name = function_raw["name"]
|
||||
if function_name not in functions:
|
||||
functions[function_name] = {
|
||||
"start_line": function_raw["start_line"],
|
||||
"execution_count": function_raw["execution_count"]
|
||||
}
|
||||
else:
|
||||
functions[function_name]["execution_count"] += function_raw["execution_count"]
|
||||
|
||||
def distillLine(line_raw, lines, branches):
|
||||
line_number = str(line_raw["line_number"])
|
||||
if line_number not in lines:
|
||||
lines[line_number] = line_raw["count"]
|
||||
else:
|
||||
lines[line_number] += line_raw["count"]
|
||||
|
||||
for i, branch in enumerate(line_raw["branches"]):
|
||||
if line_number not in branches:
|
||||
branches[line_number] = []
|
||||
blen = len(branches[line_number])
|
||||
glen = len(line_raw["branches"])
|
||||
if blen < glen:
|
||||
branches[line_number] += [0] * (glen - blen)
|
||||
branches[line_number][i] += branch["count"]
|
||||
|
||||
def distillSource(source_raw, sources):
|
||||
source_name = source_raw["file_abs"]
|
||||
if source_name not in sources:
|
||||
sources[source_name] = {
|
||||
"functions": {},
|
||||
"branches": {},
|
||||
"lines": {},
|
||||
}
|
||||
|
||||
for function in source_raw["functions"]:
|
||||
distillFunction(function, sources[source_name]["functions"])
|
||||
|
||||
for line in source_raw["lines"]:
|
||||
distillLine(line, sources[source_name]["lines"], sources[source_name]["branches"])
|
||||
|
||||
def distillReport(report_raw):
|
||||
report_json = {
|
||||
"sources": {}
|
||||
}
|
||||
|
||||
for source in report_raw:
|
||||
distillSource(source, report_json["sources"])
|
||||
|
||||
return report_json
|
||||
|
||||
def dumpToJson(intermediate, output):
|
||||
with open(output, "w") as f:
|
||||
json.dump(intermediate, f)
|
||||
|
||||
def log(line):
|
||||
if not args.quiet:
|
||||
print("[{:.3f}s] {}".format(stopwatch(), line))
|
||||
|
||||
def getGcovFilterOptions(args):
|
||||
return {
|
||||
"sources": set([os.path.abspath(s) for s in args.sources]), #Make paths absolute, use set for fast lookups
|
||||
"include": args.includepost,
|
||||
"exclude": args.excludepost,
|
||||
}
|
||||
|
||||
def main(args):
|
||||
# Need at least gcov 9.0.0 because that's when gcov JSON and stdout streaming was introduced
|
||||
current_gcov_version = getGcovVersion(args.gcov)
|
||||
if current_gcov_version < MINIMUM_GCOV:
|
||||
sys.stderr.write("Minimum gcov version {} required, found {}\n".format(".".join(map(str, MINIMUM_GCOV)), ".".join(map(str, current_gcov_version))))
|
||||
exit(1)
|
||||
|
||||
# Get list of gcda files to process
|
||||
gcda_files = getGcdaFiles(args.directory, args.gcda_files)
|
||||
log("Found {} .gcda files ".format(len(gcda_files)))
|
||||
|
||||
# If gcda filtering is enabled, filter them out now
|
||||
if args.excludepre:
|
||||
gcda_files = getFilteredGcdaFiles(gcda_files, args.excludepre)
|
||||
log("{} .gcda files after filtering".format(len(gcda_files)))
|
||||
|
||||
# We "zero" the "counters" by simply deleting all gcda files
|
||||
if args.zerocounters:
|
||||
removeFiles(gcda_files)
|
||||
log("{} .gcda files removed".format(len(gcda_files)))
|
||||
return
|
||||
|
||||
# Fire up one gcov per cpu and start processing gcdas
|
||||
gcov_filter_options = getGcovFilterOptions(args)
|
||||
intermediate_json_files = processGcdas(args.cdirectory, args.gcov, args.jobs, gcda_files, gcov_filter_options, args.branchcoverage)
|
||||
|
||||
# Summarize processing results
|
||||
gcov_total = sum(GCOVS_TOTAL)
|
||||
gcov_skipped = sum(GCOVS_SKIPPED)
|
||||
log("Processed {} .gcov files ({} total, {} skipped)".format(gcov_total - gcov_skipped, gcov_total, gcov_skipped))
|
||||
|
||||
# Distill all the extraneous info gcov gives us down to the core report
|
||||
fastcov_json = distillReport(intermediate_json_files)
|
||||
log("Aggregated raw gcov JSON into fastcov JSON report")
|
||||
|
||||
# Dump to desired file format
|
||||
if args.lcov:
|
||||
scanExclusionMarkers(fastcov_json, args.jobs)
|
||||
log("Scanned {} source files for exclusion markers".format(len(fastcov_json["sources"])))
|
||||
dumpToLcovInfo(fastcov_json, args.output)
|
||||
log("Created lcov info file '{}'".format(args.output))
|
||||
elif args.gcov_raw:
|
||||
dumpToJson(intermediate_json_files, args.output)
|
||||
log("Created gcov raw json file '{}'".format(args.output))
|
||||
else:
|
||||
dumpToJson(fastcov_json, args.output)
|
||||
log("Created fastcov json file '{}'".format(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')
|
||||
|
||||
# Enable Branch Coverage
|
||||
parser.add_argument('-b', '--branch-coverage', dest='branchcoverage', action="store_true", help='Include branch counts in the coverage report')
|
||||
|
||||
# Filtering Options
|
||||
parser.add_argument('-s', '--source-files', dest='sources', nargs="+", metavar='', 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.')
|
||||
parser.add_argument('-e', '--exclude', dest='excludepost', nargs="+", metavar='', default=[], help='Filter: Exclude source files from final report if they contain one of the provided substrings (i.e. /usr/include test/, etc.)')
|
||||
parser.add_argument('-i', '--include', dest='includepost', nargs="+", metavar='', default=[], help='Filter: Only include source files in final report that contain one of the provided substrings (i.e. src/ etc.)')
|
||||
parser.add_argument('-f', '--gcda-files', dest='gcda_files', nargs="+", metavar='', default=[], help='Filter: Specify exactly which gcda files should be processed instead of recursively searching the search directory.')
|
||||
parser.add_argument('-E', '--exclude-gcda', dest='excludepre', nargs="+", metavar='', default=[], help='Filter: Exclude gcda 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: .) \
|
||||
This needs to be set if invoking fastcov from somewhere other than the base compiler directory.')
|
||||
|
||||
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('-m', '--minimum-chunk-size', dest='minimum_chunk', type=int, default=5, help='Minimum number of files a thread should process (default: 5). \
|
||||
If you have only 4 gcda files but they are monstrously huge, you could change this value to a 1 so that each thread will only process 1 gcda. Otherise fastcov will spawn only 1 thread to process all of them.')
|
||||
|
||||
parser.add_argument('-l', '--lcov', dest='lcov', action="store_true", help='Output in lcov info format instead of fastcov json')
|
||||
parser.add_argument('-r', '--gcov-raw', dest='gcov_raw', action="store_true", help='Output in gcov raw json instead of fastcov json')
|
||||
parser.add_argument('-o', '--output', dest='output', default="coverage.json", help='Name of output file (default: coverage.json)')
|
||||
parser.add_argument('-q', '--quiet', dest='quiet', action="store_true", help='Suppress output to stdout')
|
||||
|
||||
args = parser.parse_args()
|
||||
main(args)
|
Loading…
Reference in a new issue