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authorLoïc Blot <nerzhul@users.noreply.github.com>2018-04-01 23:57:55 +0200
committerGitHub <noreply@github.com>2018-04-01 23:57:55 +0200
commitd88c4e18221c7857a7bfe2fbb0f5f6bef1da8d29 (patch)
tree420ab20cdda66c95a344e35ef1df20faf74852e0 /util/travis
parent93eb0794d6f7366df5fb375855b2e5e5888304c6 (diff)
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LINT: add clang-tidy step (#6295)
* Implement new travis clang-tidy build step * This step enable some rules and enforce one rule as error * This permits to have some C++ quality rules based on clang & clang contributor guidelines * Fix clang-tidy reported problems on push_back -> emplace_back
Diffstat (limited to 'util/travis')
-rwxr-xr-xutil/travis/before_install.sh4
-rwxr-xr-xutil/travis/clangtidy.sh27
-rwxr-xr-xutil/travis/run-clang-tidy.py271
-rwxr-xr-xutil/travis/script.sh2
4 files changed, 301 insertions, 3 deletions
diff --git a/util/travis/before_install.sh b/util/travis/before_install.sh
index afc16c332..19c40ef90 100755
--- a/util/travis/before_install.sh
+++ b/util/travis/before_install.sh
@@ -10,8 +10,8 @@ fi
needs_compile || exit 0
-if [[ $PLATFORM == "Unix" ]]; then
- if [[ $TRAVIS_OS_NAME == "linux" ]]; then
+if [[ $PLATFORM == "Unix" ]] || [[ $CLANG_TIDY == "1" ]]; then
+ if [[ $TRAVIS_OS_NAME == "linux" ]] || [[ $CLANG_TIDY == "1" ]]; then
install_linux_deps
else
install_macosx_deps
diff --git a/util/travis/clangtidy.sh b/util/travis/clangtidy.sh
new file mode 100755
index 000000000..2d44afe32
--- /dev/null
+++ b/util/travis/clangtidy.sh
@@ -0,0 +1,27 @@
+if hash clang-tidy-5.0 2>/dev/null; then
+ CLANG_TIDY=clang-tidy-5.0
+else
+ CLANG_TIDY=clang-tidy
+fi
+
+files_to_analyze="$(find src/ -name '*.cpp' -or -name '*.h')"
+
+mkdir -p cmakebuild && cd cmakebuild
+cmake -DCMAKE_BUILD_TYPE=Debug \
+ -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
+ -DRUN_IN_PLACE=TRUE \
+ -DENABLE_GETTEXT=TRUE \
+ -DENABLE_SOUND=FALSE \
+ -DBUILD_SERVER=TRUE ..
+make GenerateVersion
+cd ..
+
+echo "Performing clang-tidy checks..."
+./util/travis/run-clang-tidy.py -clang-tidy-binary=${CLANG_TIDY} -p cmakebuild \
+ -checks='-*,modernize-use-emplace,modernize-avoid-bind,performance-*' \
+ -warningsaserrors='-*,modernize-use-emplace' \
+ -no-command-on-stdout -quiet \
+ files 'src/.*'
+RET=$?
+echo "Clang tidy returned $RET"
+exit $RET
diff --git a/util/travis/run-clang-tidy.py b/util/travis/run-clang-tidy.py
new file mode 100755
index 000000000..779cf7cc6
--- /dev/null
+++ b/util/travis/run-clang-tidy.py
@@ -0,0 +1,271 @@
+#!/usr/bin/env python2
+#
+# ===- run-clang-tidy.py - Parallel clang-tidy runner ---------*- python -*--===#
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+# ===------------------------------------------------------------------------===#
+# FIXME: Integrate with clang-tidy-diff.py
+
+"""
+Parallel clang-tidy runner
+==========================
+
+Runs clang-tidy over all files in a compilation database. Requires clang-tidy
+and clang-apply-replacements in $PATH.
+
+Example invocations.
+- Run clang-tidy on all files in the current working directory with a default
+ set of checks and show warnings in the cpp files and all project headers.
+ run-clang-tidy.py $PWD
+
+- Fix all header guards.
+ run-clang-tidy.py -fix -checks=-*,llvm-header-guard
+
+- Fix all header guards included from clang-tidy and header guards
+ for clang-tidy headers.
+ run-clang-tidy.py -fix -checks=-*,llvm-header-guard extra/clang-tidy \
+ -header-filter=extra/clang-tidy
+
+Compilation database setup:
+http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
+"""
+
+from __future__ import print_function
+import argparse
+import json
+import multiprocessing
+import os
+import Queue
+import re
+import shutil
+import subprocess
+import sys
+import tempfile
+import threading
+import traceback
+
+
+class TidyQueue(Queue.Queue):
+ def __init__(self, max_task):
+ Queue.Queue.__init__(self, max_task)
+ self.has_error = False
+
+
+def find_compilation_database(path):
+ """Adjusts the directory until a compilation database is found."""
+ result = './'
+ while not os.path.isfile(os.path.join(result, path)):
+ if os.path.realpath(result) == '/':
+ print('Error: could not find compilation database.')
+ sys.exit(1)
+ result += '../'
+ return os.path.realpath(result)
+
+
+def get_tidy_invocation(f, clang_tidy_binary, checks, warningsaserrors,
+ tmpdir, build_path,
+ header_filter, extra_arg, extra_arg_before, quiet):
+ """Gets a command line for clang-tidy."""
+ start = [clang_tidy_binary]
+ if header_filter is not None:
+ start.append('-header-filter=' + header_filter)
+ else:
+ # Show warnings in all in-project headers by default.
+ start.append('-header-filter=^' + build_path + '/.*')
+ if checks:
+ start.append('-checks=' + checks)
+ if warningsaserrors:
+ start.append('-warnings-as-errors=' + warningsaserrors)
+ if tmpdir is not None:
+ start.append('-export-fixes')
+ # Get a temporary file. We immediately close the handle so clang-tidy can
+ # overwrite it.
+ (handle, name) = tempfile.mkstemp(suffix='.yaml', dir=tmpdir)
+ os.close(handle)
+ start.append(name)
+ for arg in extra_arg:
+ start.append('-extra-arg=%s' % arg)
+ for arg in extra_arg_before:
+ start.append('-extra-arg-before=%s' % arg)
+ start.append('-p=' + build_path)
+ if quiet:
+ start.append('-quiet')
+ start.append(f)
+ return start
+
+
+def check_clang_apply_replacements_binary(args):
+ """Checks if invoking supplied clang-apply-replacements binary works."""
+ try:
+ subprocess.check_call([args.clang_apply_replacements_binary, '--version'])
+ except:
+ print('Unable to run clang-apply-replacements. Is clang-apply-replacements '
+ 'binary correctly specified?', file=sys.stderr)
+ traceback.print_exc()
+ sys.exit(1)
+
+
+def apply_fixes(args, tmpdir):
+ """Calls clang-apply-fixes on a given directory. Deletes the dir when done."""
+ invocation = [args.clang_apply_replacements_binary]
+ if args.format:
+ invocation.append('-format')
+ if args.style:
+ invocation.append('-style=' + args.style)
+ invocation.append(tmpdir)
+ subprocess.call(invocation)
+
+
+def run_tidy(args, tmpdir, build_path, queue):
+ """Takes filenames out of queue and runs clang-tidy on them."""
+ while True:
+ name = queue.get()
+ invocation = get_tidy_invocation(name, args.clang_tidy_binary, args.checks,
+ args.warningsaserrors, tmpdir, build_path,
+ args.header_filter, args.extra_arg,
+ args.extra_arg_before, args.quiet)
+ if not args.no_command_on_stdout:
+ sys.stdout.write(' '.join(invocation) + '\n')
+ try:
+ subprocess.check_call(invocation)
+ except subprocess.CalledProcessError:
+ queue.has_error = True
+ queue.task_done()
+
+
+def main():
+ parser = argparse.ArgumentParser(description='Runs clang-tidy over all files '
+ 'in a compilation database. Requires '
+ 'clang-tidy and clang-apply-replacements in '
+ '$PATH.')
+ parser.add_argument('-clang-tidy-binary', metavar='PATH',
+ default='clang-tidy',
+ help='path to clang-tidy binary')
+ parser.add_argument('-clang-apply-replacements-binary', metavar='PATH',
+ default='clang-apply-replacements',
+ help='path to clang-apply-replacements binary')
+ parser.add_argument('-checks', default=None,
+ help='checks filter, when not specified, use clang-tidy '
+ 'default')
+ parser.add_argument('-warningsaserrors', default=None,
+ help='warnings-as-errors filter, when not specified, '
+ 'use clang-tidy default')
+ parser.add_argument('-header-filter', default=None,
+ help='regular expression matching the names of the '
+ 'headers to output diagnostics from. Diagnostics from '
+ 'the main file of each translation unit are always '
+ 'displayed.')
+ parser.add_argument('-j', type=int, default=0,
+ help='number of tidy instances to be run in parallel.')
+ parser.add_argument('files', nargs='*', default=['.*'],
+ help='files to be processed (regex on path)')
+ parser.add_argument('-fix', action='store_true', help='apply fix-its')
+ parser.add_argument('-format', action='store_true', help='Reformat code '
+ 'after applying fixes')
+ parser.add_argument('-style', default='file', help='The style of reformat '
+ 'code after applying fixes')
+ parser.add_argument('-p', dest='build_path',
+ help='Path used to read a compile command database.')
+ parser.add_argument('-extra-arg', dest='extra_arg',
+ action='append', default=[],
+ help='Additional argument to append to the compiler '
+ 'command line.')
+ parser.add_argument('-extra-arg-before', dest='extra_arg_before',
+ action='append', default=[],
+ help='Additional argument to prepend to the compiler '
+ 'command line.')
+ parser.add_argument('-quiet', action='store_true',
+ help='Run clang-tidy in quiet mode')
+ parser.add_argument('-no-command-on-stdout', action='store_true',
+ help='Run clang-tidy without printing invocation on '
+ 'stdout')
+ args = parser.parse_args()
+
+ db_path = 'compile_commands.json'
+
+ if args.build_path is not None:
+ build_path = args.build_path
+ else:
+ # Find our database
+ build_path = find_compilation_database(db_path)
+
+ try:
+ invocation = [args.clang_tidy_binary, '-list-checks', '-p=' + build_path]
+ if args.checks:
+ invocation.append('-checks=' + args.checks)
+ if args.warningsaserrors:
+ invocation.append('-warnings-as-errors=' + args.warningsaserrors)
+ invocation.append('-')
+ print(subprocess.check_output(invocation))
+ except:
+ print("Unable to run clang-tidy.", file=sys.stderr)
+ sys.exit(1)
+
+ # Load the database and extract all files.
+ database = json.load(open(os.path.join(build_path, db_path)))
+ files = [entry['file'] for entry in database]
+
+ max_task = args.j
+ if max_task == 0:
+ max_task = multiprocessing.cpu_count()
+
+ tmpdir = None
+ if args.fix:
+ check_clang_apply_replacements_binary(args)
+ tmpdir = tempfile.mkdtemp()
+
+ # Build up a big regexy filter from all command line arguments.
+ file_name_re = re.compile('|'.join(args.files))
+
+ try:
+ # Spin up a bunch of tidy-launching threads.
+ queue = TidyQueue(max_task)
+ for _ in range(max_task):
+ t = threading.Thread(target=run_tidy,
+ args=(args, tmpdir, build_path, queue))
+ t.daemon = True
+ t.start()
+
+ # Fill the queue with files.
+ for name in files:
+ if file_name_re.search(name):
+ queue.put(name)
+
+ # Wait for all threads to be done.
+ queue.join()
+
+ # If one clang-tidy process found and error, exit with non-zero
+ # status
+ if queue.has_error:
+ sys.exit(2)
+
+ except KeyboardInterrupt:
+ # This is a sad hack. Unfortunately subprocess goes
+ # bonkers with ctrl-c and we start forking merrily.
+ print('\nCtrl-C detected, goodbye.')
+ if args.fix:
+ shutil.rmtree(tmpdir)
+ os.kill(0, 9)
+
+ if args.fix:
+ print('Applying fixes ...')
+ successfully_applied = False
+
+ try:
+ apply_fixes(args, tmpdir)
+ successfully_applied = True
+ except:
+ print('Error applying fixes.\n', file=sys.stderr)
+ traceback.print_exc()
+
+ shutil.rmtree(tmpdir)
+ if not successfully_applied:
+ sys.exit(1)
+
+
+if __name__ == '__main__':
+ main()
diff --git a/util/travis/script.sh b/util/travis/script.sh
index c68638db4..32e8d2e36 100755
--- a/util/travis/script.sh
+++ b/util/travis/script.sh
@@ -5,7 +5,7 @@
needs_compile || exit 0
if [[ "$LINT" == "1" ]]; then
- # Lint with exit CI
+ # Lint and exit CI
perform_lint
exit 0
fi