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Unified Diff: third_party/cherrypy/lib/covercp.py

Issue 9368042: Add CherryPy to third_party. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/tools/build/
Patch Set: '' Created 8 years, 10 months ago
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Index: third_party/cherrypy/lib/covercp.py
===================================================================
--- third_party/cherrypy/lib/covercp.py (revision 0)
+++ third_party/cherrypy/lib/covercp.py (revision 0)
@@ -0,0 +1,365 @@
+"""Code-coverage tools for CherryPy.
+
+To use this module, or the coverage tools in the test suite,
+you need to download 'coverage.py', either Gareth Rees' `original
+implementation <http://www.garethrees.org/2001/12/04/python-coverage/>`_
+or Ned Batchelder's `enhanced version:
+<http://www.nedbatchelder.com/code/modules/coverage.html>`_
+
+To turn on coverage tracing, use the following code::
+
+ cherrypy.engine.subscribe('start', covercp.start)
+
+DO NOT subscribe anything on the 'start_thread' channel, as previously
+recommended. Calling start once in the main thread should be sufficient
+to start coverage on all threads. Calling start again in each thread
+effectively clears any coverage data gathered up to that point.
+
+Run your code, then use the ``covercp.serve()`` function to browse the
+results in a web browser. If you run this module from the command line,
+it will call ``serve()`` for you.
+"""
+
+import re
+import sys
+import cgi
+from cherrypy._cpcompat import quote_plus
+import os, os.path
+localFile = os.path.join(os.path.dirname(__file__), "coverage.cache")
+
+the_coverage = None
+try:
+ from coverage import coverage
+ the_coverage = coverage(data_file=localFile)
+ def start():
+ the_coverage.start()
+except ImportError:
+ # Setting the_coverage to None will raise errors
+ # that need to be trapped downstream.
+ the_coverage = None
+
+ import warnings
+ warnings.warn("No code coverage will be performed; coverage.py could not be imported.")
+
+ def start():
+ pass
+start.priority = 20
+
+TEMPLATE_MENU = """<html>
+<head>
+ <title>CherryPy Coverage Menu</title>
+ <style>
+ body {font: 9pt Arial, serif;}
+ #tree {
+ font-size: 8pt;
+ font-family: Andale Mono, monospace;
+ white-space: pre;
+ }
+ #tree a:active, a:focus {
+ background-color: black;
+ padding: 1px;
+ color: white;
+ border: 0px solid #9999FF;
+ -moz-outline-style: none;
+ }
+ .fail { color: red;}
+ .pass { color: #888;}
+ #pct { text-align: right;}
+ h3 {
+ font-size: small;
+ font-weight: bold;
+ font-style: italic;
+ margin-top: 5px;
+ }
+ input { border: 1px solid #ccc; padding: 2px; }
+ .directory {
+ color: #933;
+ font-style: italic;
+ font-weight: bold;
+ font-size: 10pt;
+ }
+ .file {
+ color: #400;
+ }
+ a { text-decoration: none; }
+ #crumbs {
+ color: white;
+ font-size: 8pt;
+ font-family: Andale Mono, monospace;
+ width: 100%;
+ background-color: black;
+ }
+ #crumbs a {
+ color: #f88;
+ }
+ #options {
+ line-height: 2.3em;
+ border: 1px solid black;
+ background-color: #eee;
+ padding: 4px;
+ }
+ #exclude {
+ width: 100%;
+ margin-bottom: 3px;
+ border: 1px solid #999;
+ }
+ #submit {
+ background-color: black;
+ color: white;
+ border: 0;
+ margin-bottom: -9px;
+ }
+ </style>
+</head>
+<body>
+<h2>CherryPy Coverage</h2>"""
+
+TEMPLATE_FORM = """
+<div id="options">
+<form action='menu' method=GET>
+ <input type='hidden' name='base' value='%(base)s' />
+ Show percentages <input type='checkbox' %(showpct)s name='showpct' value='checked' /><br />
+ Hide files over <input type='text' id='pct' name='pct' value='%(pct)s' size='3' />%%<br />
+ Exclude files matching<br />
+ <input type='text' id='exclude' name='exclude' value='%(exclude)s' size='20' />
+ <br />
+
+ <input type='submit' value='Change view' id="submit"/>
+</form>
+</div>"""
+
+TEMPLATE_FRAMESET = """<html>
+<head><title>CherryPy coverage data</title></head>
+<frameset cols='250, 1*'>
+ <frame src='menu?base=%s' />
+ <frame name='main' src='' />
+</frameset>
+</html>
+"""
+
+TEMPLATE_COVERAGE = """<html>
+<head>
+ <title>Coverage for %(name)s</title>
+ <style>
+ h2 { margin-bottom: .25em; }
+ p { margin: .25em; }
+ .covered { color: #000; background-color: #fff; }
+ .notcovered { color: #fee; background-color: #500; }
+ .excluded { color: #00f; background-color: #fff; }
+ table .covered, table .notcovered, table .excluded
+ { font-family: Andale Mono, monospace;
+ font-size: 10pt; white-space: pre; }
+
+ .lineno { background-color: #eee;}
+ .notcovered .lineno { background-color: #000;}
+ table { border-collapse: collapse;
+ </style>
+</head>
+<body>
+<h2>%(name)s</h2>
+<p>%(fullpath)s</p>
+<p>Coverage: %(pc)s%%</p>"""
+
+TEMPLATE_LOC_COVERED = """<tr class="covered">
+ <td class="lineno">%s&nbsp;</td>
+ <td>%s</td>
+</tr>\n"""
+TEMPLATE_LOC_NOT_COVERED = """<tr class="notcovered">
+ <td class="lineno">%s&nbsp;</td>
+ <td>%s</td>
+</tr>\n"""
+TEMPLATE_LOC_EXCLUDED = """<tr class="excluded">
+ <td class="lineno">%s&nbsp;</td>
+ <td>%s</td>
+</tr>\n"""
+
+TEMPLATE_ITEM = "%s%s<a class='file' href='report?name=%s' target='main'>%s</a>\n"
+
+def _percent(statements, missing):
+ s = len(statements)
+ e = s - len(missing)
+ if s > 0:
+ return int(round(100.0 * e / s))
+ return 0
+
+def _show_branch(root, base, path, pct=0, showpct=False, exclude="",
+ coverage=the_coverage):
+
+ # Show the directory name and any of our children
+ dirs = [k for k, v in root.items() if v]
+ dirs.sort()
+ for name in dirs:
+ newpath = os.path.join(path, name)
+
+ if newpath.lower().startswith(base):
+ relpath = newpath[len(base):]
+ yield "| " * relpath.count(os.sep)
+ yield "<a class='directory' href='menu?base=%s&exclude=%s'>%s</a>\n" % \
+ (newpath, quote_plus(exclude), name)
+
+ for chunk in _show_branch(root[name], base, newpath, pct, showpct, exclude, coverage=coverage):
+ yield chunk
+
+ # Now list the files
+ if path.lower().startswith(base):
+ relpath = path[len(base):]
+ files = [k for k, v in root.items() if not v]
+ files.sort()
+ for name in files:
+ newpath = os.path.join(path, name)
+
+ pc_str = ""
+ if showpct:
+ try:
+ _, statements, _, missing, _ = coverage.analysis2(newpath)
+ except:
+ # Yes, we really want to pass on all errors.
+ pass
+ else:
+ pc = _percent(statements, missing)
+ pc_str = ("%3d%% " % pc).replace(' ','&nbsp;')
+ if pc < float(pct) or pc == -1:
+ pc_str = "<span class='fail'>%s</span>" % pc_str
+ else:
+ pc_str = "<span class='pass'>%s</span>" % pc_str
+
+ yield TEMPLATE_ITEM % ("| " * (relpath.count(os.sep) + 1),
+ pc_str, newpath, name)
+
+def _skip_file(path, exclude):
+ if exclude:
+ return bool(re.search(exclude, path))
+
+def _graft(path, tree):
+ d = tree
+
+ p = path
+ atoms = []
+ while True:
+ p, tail = os.path.split(p)
+ if not tail:
+ break
+ atoms.append(tail)
+ atoms.append(p)
+ if p != "/":
+ atoms.append("/")
+
+ atoms.reverse()
+ for node in atoms:
+ if node:
+ d = d.setdefault(node, {})
+
+def get_tree(base, exclude, coverage=the_coverage):
+ """Return covered module names as a nested dict."""
+ tree = {}
+ runs = coverage.data.executed_files()
+ for path in runs:
+ if not _skip_file(path, exclude) and not os.path.isdir(path):
+ _graft(path, tree)
+ return tree
+
+class CoverStats(object):
+
+ def __init__(self, coverage, root=None):
+ self.coverage = coverage
+ if root is None:
+ # Guess initial depth. Files outside this path will not be
+ # reachable from the web interface.
+ import cherrypy
+ root = os.path.dirname(cherrypy.__file__)
+ self.root = root
+
+ def index(self):
+ return TEMPLATE_FRAMESET % self.root.lower()
+ index.exposed = True
+
+ def menu(self, base="/", pct="50", showpct="",
+ exclude=r'python\d\.\d|test|tut\d|tutorial'):
+
+ # The coverage module uses all-lower-case names.
+ base = base.lower().rstrip(os.sep)
+
+ yield TEMPLATE_MENU
+ yield TEMPLATE_FORM % locals()
+
+ # Start by showing links for parent paths
+ yield "<div id='crumbs'>"
+ path = ""
+ atoms = base.split(os.sep)
+ atoms.pop()
+ for atom in atoms:
+ path += atom + os.sep
+ yield ("<a href='menu?base=%s&exclude=%s'>%s</a> %s"
+ % (path, quote_plus(exclude), atom, os.sep))
+ yield "</div>"
+
+ yield "<div id='tree'>"
+
+ # Then display the tree
+ tree = get_tree(base, exclude, self.coverage)
+ if not tree:
+ yield "<p>No modules covered.</p>"
+ else:
+ for chunk in _show_branch(tree, base, "/", pct,
+ showpct=='checked', exclude, coverage=self.coverage):
+ yield chunk
+
+ yield "</div>"
+ yield "</body></html>"
+ menu.exposed = True
+
+ def annotated_file(self, filename, statements, excluded, missing):
+ source = open(filename, 'r')
+ buffer = []
+ for lineno, line in enumerate(source.readlines()):
+ lineno += 1
+ line = line.strip("\n\r")
+ empty_the_buffer = True
+ if lineno in excluded:
+ template = TEMPLATE_LOC_EXCLUDED
+ elif lineno in missing:
+ template = TEMPLATE_LOC_NOT_COVERED
+ elif lineno in statements:
+ template = TEMPLATE_LOC_COVERED
+ else:
+ empty_the_buffer = False
+ buffer.append((lineno, line))
+ if empty_the_buffer:
+ for lno, pastline in buffer:
+ yield template % (lno, cgi.escape(pastline))
+ buffer = []
+ yield template % (lineno, cgi.escape(line))
+
+ def report(self, name):
+ filename, statements, excluded, missing, _ = self.coverage.analysis2(name)
+ pc = _percent(statements, missing)
+ yield TEMPLATE_COVERAGE % dict(name=os.path.basename(name),
+ fullpath=name,
+ pc=pc)
+ yield '<table>\n'
+ for line in self.annotated_file(filename, statements, excluded,
+ missing):
+ yield line
+ yield '</table>'
+ yield '</body>'
+ yield '</html>'
+ report.exposed = True
+
+
+def serve(path=localFile, port=8080, root=None):
+ if coverage is None:
+ raise ImportError("The coverage module could not be imported.")
+ from coverage import coverage
+ cov = coverage(data_file = path)
+ cov.load()
+
+ import cherrypy
+ cherrypy.config.update({'server.socket_port': int(port),
+ 'server.thread_pool': 10,
+ 'environment': "production",
+ })
+ cherrypy.quickstart(CoverStats(cov, root))
+
+if __name__ == "__main__":
+ serve(*tuple(sys.argv[1:]))
+
Property changes on: third_party/cherrypy/lib/covercp.py
___________________________________________________________________
Added: svn:eol-style
+ LF
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