Merge commit 'db4fa08d4da3cc840e6f97e6869a877f2b4c9474' as 'waflib'

1 files changed, 209 insertions, 0 deletions

diff --git a/waflib/extras/cpplint.py b/waflib/extras/cpplint.py
new file mode 100644
index 0000000..e3302e5
--- /dev/null
+++ b/waflib/extras/cpplint.py
@@ -0,0 +1,209 @@
+#! /usr/bin/env python
+# encoding: utf-8
+#
+# written by Sylvain Rouquette, 2014
+
+'''
+
+This is an extra tool, not bundled with the default waf binary.
+To add the cpplint tool to the waf file:
+$ ./waf-light --tools=compat15,cpplint
+
+this tool also requires cpplint for python.
+If you have PIP, you can install it like this: pip install cpplint
+
+When using this tool, the wscript will look like:
+
+    def options(opt):
+        opt.load('compiler_cxx cpplint')
+
+    def configure(conf):
+        conf.load('compiler_cxx cpplint')
+        # optional, you can also specify them on the command line
+        conf.env.CPPLINT_FILTERS = ','.join((
+            '-whitespace/newline',      # c++11 lambda
+            '-readability/braces',      # c++11 constructor
+            '-whitespace/braces',       # c++11 constructor
+            '-build/storage_class',     # c++11 for-range
+            '-whitespace/blank_line',   # user pref
+            '-whitespace/labels'        # user pref
+            ))
+
+    def build(bld):
+        bld(features='cpplint', source='main.cpp', target='app')
+        # add include files, because they aren't usually built
+        bld(features='cpplint', source=bld.path.ant_glob('**/*.hpp'))
+'''
+
+from __future__ import absolute_import
+import sys, re
+import logging
+from waflib import Errors, Task, TaskGen, Logs, Options, Node, Utils
+
+
+critical_errors = 0
+CPPLINT_FORMAT = '[CPPLINT] %(filename)s:\nline %(linenum)s, severity %(confidence)s, category: %(category)s\n%(message)s\n'
+RE_EMACS = re.compile('(?P<filename>.*):(?P<linenum>\d+):  (?P<message>.*)  \[(?P<category>.*)\] \[(?P<confidence>\d+)\]')
+CPPLINT_RE = {
+    'waf': RE_EMACS,
+    'emacs': RE_EMACS,
+    'vs7': re.compile('(?P<filename>.*)\((?P<linenum>\d+)\):  (?P<message>.*)  \[(?P<category>.*)\] \[(?P<confidence>\d+)\]'),
+    'eclipse': re.compile('(?P<filename>.*):(?P<linenum>\d+): warning: (?P<message>.*)  \[(?P<category>.*)\] \[(?P<confidence>\d+)\]'),
+}
+CPPLINT_STR = ('${CPPLINT} '
+               '--verbose=${CPPLINT_LEVEL} '
+               '--output=${CPPLINT_OUTPUT} '
+               '--filter=${CPPLINT_FILTERS} '
+               '--root=${CPPLINT_ROOT} '
+               '--linelength=${CPPLINT_LINE_LENGTH} ')
+
+
+def options(opt):
+    opt.add_option('--cpplint-filters', type='string',
+                   default='', dest='CPPLINT_FILTERS',
+                   help='add filters to cpplint')
+    opt.add_option('--cpplint-length', type='int',
+                   default=80, dest='CPPLINT_LINE_LENGTH',
+                   help='specify the line length (default: 80)')
+    opt.add_option('--cpplint-level', default=1, type='int', dest='CPPLINT_LEVEL',
+                   help='specify the log level (default: 1)')
+    opt.add_option('--cpplint-break', default=5, type='int', dest='CPPLINT_BREAK',
+                   help='break the build if error >= level (default: 5)')
+    opt.add_option('--cpplint-root', type='string',
+                   default='', dest='CPPLINT_ROOT',
+                   help='root directory used to derive header guard')
+    opt.add_option('--cpplint-skip', action='store_true',
+                   default=False, dest='CPPLINT_SKIP',
+                   help='skip cpplint during build')
+    opt.add_option('--cpplint-output', type='string',
+                   default='waf', dest='CPPLINT_OUTPUT',
+                   help='select output format (waf, emacs, vs7, eclipse)')
+
+
+def configure(conf):
+    try:
+        conf.find_program('cpplint', var='CPPLINT')
+    except Errors.ConfigurationError:
+        conf.env.CPPLINT_SKIP = True
+
+
+class cpplint_formatter(Logs.formatter, object):
+    def __init__(self, fmt):
+        logging.Formatter.__init__(self, CPPLINT_FORMAT)
+        self.fmt = fmt
+
+    def format(self, rec):
+        if self.fmt == 'waf':
+            result = CPPLINT_RE[self.fmt].match(rec.msg).groupdict()
+            rec.msg = CPPLINT_FORMAT % result
+        if rec.levelno <= logging.INFO:
+            rec.c1 = Logs.colors.CYAN
+        return super(cpplint_formatter, self).format(rec)
+
+
+class cpplint_handler(Logs.log_handler, object):
+    def __init__(self, stream=sys.stderr, **kw):
+        super(cpplint_handler, self).__init__(stream, **kw)
+        self.stream = stream
+
+    def emit(self, rec):
+        rec.stream = self.stream
+        self.emit_override(rec)
+        self.flush()
+
+
+class cpplint_wrapper(object):
+    def __init__(self, logger, threshold, fmt):
+        self.logger = logger
+        self.threshold = threshold
+        self.fmt = fmt
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        if isinstance(exc_value, Utils.subprocess.CalledProcessError):
+            messages = [m for m in exc_value.output.splitlines() 
+                        if 'Done processing' not in m 
+                        and 'Total errors found' not in m]
+            for message in messages:
+                self.write(message)
+            return True
+
+    def write(self, message):
+        global critical_errors
+        result = CPPLINT_RE[self.fmt].match(message)
+        if not result:
+            return
+        level = int(result.groupdict()['confidence'])
+        if level >= self.threshold:
+            critical_errors += 1
+        if level <= 2:
+            self.logger.info(message)
+        elif level <= 4:
+            self.logger.warning(message)
+        else:
+            self.logger.error(message)
+
+
+cpplint_logger = None
+def get_cpplint_logger(fmt):
+    global cpplint_logger
+    if cpplint_logger:
+        return cpplint_logger
+    cpplint_logger = logging.getLogger('cpplint')
+    hdlr = cpplint_handler()
+    hdlr.setFormatter(cpplint_formatter(fmt))
+    cpplint_logger.addHandler(hdlr)
+    cpplint_logger.setLevel(logging.DEBUG)
+    return cpplint_logger
+
+
+class cpplint(Task.Task):
+    color = 'PINK'
+
+    def __init__(self, *k, **kw):
+        super(cpplint, self).__init__(*k, **kw)
+
+    def run(self):
+        global critical_errors
+        with cpplint_wrapper(get_cpplint_logger(self.env.CPPLINT_OUTPUT), self.env.CPPLINT_BREAK, self.env.CPPLINT_OUTPUT):
+            params = {key: str(self.env[key]) for key in self.env if 'CPPLINT_' in key}
+            if params['CPPLINT_OUTPUT'] is 'waf':
+                params['CPPLINT_OUTPUT'] = 'emacs'
+            params['CPPLINT'] = self.env.get_flat('CPPLINT')
+            cmd = Utils.subst_vars(CPPLINT_STR, params)
+            env = self.env.env or None
+            Utils.subprocess.check_output(cmd + self.inputs[0].abspath(),
+                                          stderr=Utils.subprocess.STDOUT,
+                                          env=env, shell=True)
+        return critical_errors
+
+@TaskGen.extension('.h', '.hh', '.hpp', '.hxx')
+def cpplint_includes(self, node):
+    pass
+
+@TaskGen.feature('cpplint')
+@TaskGen.before_method('process_source')
+def post_cpplint(self):
+    if not self.env.CPPLINT_INITIALIZED:
+        for key, value in Options.options.__dict__.items():
+            if not key.startswith('CPPLINT_') or self.env[key]:
+                continue
+            self.env[key] = value
+        self.env.CPPLINT_INITIALIZED = True
+
+    if self.env.CPPLINT_SKIP:
+        return
+
+    if not self.env.CPPLINT_OUTPUT in CPPLINT_RE:
+        return
+
+    for src in self.to_list(getattr(self, 'source', [])):
+        if isinstance(src, Node.Node):
+            node = src
+        else:
+            node = self.path.find_or_declare(src)
+        if not node:
+            self.bld.fatal('Could not find %r' % src)
+        self.create_task('cpplint', node)