433 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			433 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Python
		
	
	
	
"""
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perform ReST syntax, local and remote reference tests on .rst/.txt files. 
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"""
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import py
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import sys, os, re
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def pytest_addoption(parser):
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    group = parser.getgroup("ReST", "ReST documentation check options")
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    group.addoption('-R', '--urlcheck',
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           action="store_true", dest="urlcheck", default=False, 
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           help="urlopen() remote links found in ReST text files.") 
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    group.addoption('--urltimeout', action="store", metavar="secs",
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        type="int", dest="urlcheck_timeout", default=5,
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        help="timeout in seconds for remote urlchecks")
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    group.addoption('--forcegen',
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           action="store_true", dest="forcegen", default=False,
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           help="force generation of html files.")
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def pytest_collect_file(path, parent):
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    if path.ext in (".txt", ".rst"):
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        project = getproject(path)
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        if project is not None:
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            return ReSTFile(path, parent=parent, project=project)
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def getproject(path):
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    for parent in path.parts(reverse=True):
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        confrest = parent.join("confrest.py")
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        if confrest.check():
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            Project = confrest.pyimport().Project
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            return Project(parent)
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class ReSTFile(py.test.collect.File):
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    def __init__(self, fspath, parent, project=None):
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        super(ReSTFile, self).__init__(fspath=fspath, parent=parent)
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        if project is None:
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            project = getproject(fspath)
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            assert project is not None
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        self.project = project
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    def collect(self):
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        return [
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            ReSTSyntaxTest(self.project, "ReSTSyntax", parent=self),
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            LinkCheckerMaker("checklinks", parent=self),
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            DoctestText("doctest", parent=self),
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        ]
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def deindent(s, sep='\n'):
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    leastspaces = -1
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    lines = s.split(sep)
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    for line in lines:
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        if not line.strip():
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            continue
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        spaces = len(line) - len(line.lstrip())
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        if leastspaces == -1 or spaces < leastspaces:
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            leastspaces = spaces
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    if leastspaces == -1:
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        return s
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    for i, line in enumerate(lines):
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        if not line.strip():
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            lines[i] = ''
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        else:
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            lines[i] = line[leastspaces:]
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    return sep.join(lines)
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class ReSTSyntaxTest(py.test.collect.Item): 
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    def __init__(self, project, *args, **kwargs):
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        super(ReSTSyntaxTest, self).__init__(*args, **kwargs)
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        self.project = project
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    def reportinfo(self):
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        return self.fspath, None, "syntax check"
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    def runtest(self):
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        self.restcheck(py.path.svnwc(self.fspath))
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    def restcheck(self, path):
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        py.test.importorskip("docutils")
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        self.register_linkrole()
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        from docutils.utils import SystemMessage
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        try: 
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            self._checkskip(path, self.project.get_htmloutputpath(path))
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            self.project.process(path)
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        except KeyboardInterrupt: 
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            raise 
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        except SystemMessage: 
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            # we assume docutils printed info on stdout 
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            py.test.fail("docutils processing failed, see captured stderr") 
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    def register_linkrole(self):
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        #directive.register_linkrole('api', self.resolve_linkrole)
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        #directive.register_linkrole('source', self.resolve_linkrole)
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#
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#        # XXX fake sphinx' "toctree" and refs
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#        directive.register_linkrole('ref', self.resolve_linkrole)
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        from docutils.parsers.rst import directives
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        def toctree_directive(name, arguments, options, content, lineno,
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                      content_offset, block_text, state, state_machine):
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            return []
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        toctree_directive.content = 1
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        toctree_directive.options = {'maxdepth': int, 'glob': directives.flag,
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                             'hidden': directives.flag}
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        directives.register_directive('toctree', toctree_directive)
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        self.register_pygments()
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    def register_pygments(self):
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        # taken from pygments-main/external/rst-directive.py 
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        from docutils.parsers.rst import directives
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        try:
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            from pygments.formatters import HtmlFormatter
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        except ImportError:
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            def pygments_directive(name, arguments, options, content, lineno,
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                                   content_offset, block_text, state, state_machine):
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                return []
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            pygments_directive.options = {}
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        else:
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            # The default formatter
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            DEFAULT = HtmlFormatter(noclasses=True)
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            # Add name -> formatter pairs for every variant you want to use
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            VARIANTS = {
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                # 'linenos': HtmlFormatter(noclasses=INLINESTYLES, linenos=True),
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            }
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            from docutils import nodes
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            from pygments import highlight
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            from pygments.lexers import get_lexer_by_name, TextLexer
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            def pygments_directive(name, arguments, options, content, lineno,
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                                   content_offset, block_text, state, state_machine):
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                try:
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                    lexer = get_lexer_by_name(arguments[0])
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                except ValueError:
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                    # no lexer found - use the text one instead of an exception
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                    lexer = TextLexer()
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                # take an arbitrary option if more than one is given
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                formatter = options and VARIANTS[options.keys()[0]] or DEFAULT
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                parsed = highlight('\n'.join(content), lexer, formatter)
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                return [nodes.raw('', parsed, format='html')]
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            pygments_directive.options = dict([(key, directives.flag) for key in VARIANTS])
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        pygments_directive.arguments = (1, 0, 1)
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        pygments_directive.content = 1
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        directives.register_directive('sourcecode', pygments_directive)
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    def resolve_linkrole(self, name, text, check=True):
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        apigen_relpath = self.project.apigen_relpath
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        if name == 'api':
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            if text == 'py':
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                return ('py', apigen_relpath + 'api/index.html')
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            else:
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                assert text.startswith('py.'), (
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                    'api link "%s" does not point to the py package') % (text,)
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                dotted_name = text
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                if dotted_name.find('(') > -1:
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                    dotted_name = dotted_name[:text.find('(')]
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                # remove pkg root
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                path = dotted_name.split('.')[1:]
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                dotted_name = '.'.join(path)
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                obj = py
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                if check:
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                    for chunk in path:
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                        try:
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                            obj = getattr(obj, chunk)
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                        except AttributeError:
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                            raise AssertionError(
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                                'problem with linkrole :api:`%s`: can not resolve '
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                                'dotted name %s' % (text, dotted_name,))
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                return (text, apigen_relpath + 'api/%s.html' % (dotted_name,))
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        elif name == 'source':
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            assert text.startswith('py/'), ('source link "%s" does not point '
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                                            'to the py package') % (text,)
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            relpath = '/'.join(text.split('/')[1:])
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            if check:
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                pkgroot = py._pydir
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                abspath = pkgroot.join(relpath)
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                assert pkgroot.join(relpath).check(), (
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                        'problem with linkrole :source:`%s`: '
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                        'path %s does not exist' % (text, relpath))
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            if relpath.endswith('/') or not relpath:
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                relpath += 'index.html'
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            else:
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                relpath += '.html'
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            return (text, apigen_relpath + 'source/%s' % (relpath,))
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        elif name == 'ref':
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            return ("", "") 
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    def _checkskip(self, lpath, htmlpath=None):
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        if not self.config.getvalue("forcegen"):
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            lpath = py.path.local(lpath)
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            if htmlpath is not None:
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                htmlpath = py.path.local(htmlpath)
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            if lpath.ext == '.txt': 
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                htmlpath = htmlpath or lpath.new(ext='.html')
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                if htmlpath.check(file=1) and htmlpath.mtime() >= lpath.mtime(): 
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                    py.test.skip("html file is up to date, use --forcegen to regenerate")
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                    #return [] # no need to rebuild 
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class DoctestText(py.test.collect.Item): 
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    def reportinfo(self):
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        return self.fspath, None, "doctest"
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    def runtest(self): 
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        content = self._normalize_linesep()
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        newcontent = self.config.hook.pytest_doctest_prepare_content(content=content)
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        if newcontent is not None:
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            content = newcontent 
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        s = content 
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        l = []
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        prefix = '.. >>> '
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        mod = py.std.types.ModuleType(self.fspath.purebasename) 
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        skipchunk = False
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        for line in deindent(s).split('\n'):
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            stripped = line.strip()
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            if skipchunk and line.startswith(skipchunk):
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                py.builtin.print_("skipping", line)
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                continue
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            skipchunk = False 
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            if stripped.startswith(prefix):
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                try:
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                    py.builtin.exec_(py.code.Source(
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                            stripped[len(prefix):]).compile(),  mod.__dict__)
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                except ValueError:
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                    e = sys.exc_info()[1]
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                    if e.args and e.args[0] == "skipchunk":
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                        skipchunk = " " * (len(line) - len(line.lstrip()))
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                    else:
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                        raise
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            else:
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                l.append(line)
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        docstring = "\n".join(l)
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        mod.__doc__ = docstring 
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        failed, tot = py.std.doctest.testmod(mod, verbose=1)
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        if failed: 
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            py.test.fail("doctest %s: %s failed out of %s" %(
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                         self.fspath, failed, tot))
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    def _normalize_linesep(self):
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        # XXX quite nasty... but it works (fixes win32 issues)
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        s = self.fspath.read()
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        linesep = '\n'
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        if '\r' in s:
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            if '\n' not in s:
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                linesep = '\r'
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            else:
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                linesep = '\r\n'
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        s = s.replace(linesep, '\n')
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        return s
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class LinkCheckerMaker(py.test.collect.Collector): 
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    def collect(self):
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        return list(self.genlinkchecks())
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    def genlinkchecks(self):
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        path = self.fspath
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        # generating functions + args as single tests 
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        timeout = self.config.getvalue("urlcheck_timeout")
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        for lineno, line in enumerate(path.readlines()): 
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            line = line.strip()
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            if line.startswith('.. _'): 
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                if line.startswith('.. _`'):
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                    delim = '`:'
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                else:
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                    delim = ':'
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                l = line.split(delim, 1)
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                if len(l) != 2: 
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                    continue
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                tryfn = l[1].strip() 
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                name = "%s:%d" %(tryfn, lineno)
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                if tryfn.startswith('http:') or tryfn.startswith('https'): 
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                    if self.config.getvalue("urlcheck"):
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                        yield CheckLink(name, parent=self, 
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                            args=(tryfn, path, lineno, timeout), checkfunc=urlcheck)
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                elif tryfn.startswith('webcal:'):
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                    continue
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                else: 
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                    i = tryfn.find('#') 
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                    if i != -1: 
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                        checkfn = tryfn[:i]
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                    else: 
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                        checkfn = tryfn 
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                    if checkfn.strip() and (1 or checkfn.endswith('.html')): 
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                        yield CheckLink(name, parent=self, 
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                            args=(tryfn, path, lineno), checkfunc=localrefcheck)
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class CheckLink(py.test.collect.Item):
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    def __init__(self, name, parent, args, checkfunc):
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        super(CheckLink, self).__init__(name, parent)
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        self.args = args
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        self.checkfunc = checkfunc
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    def runtest(self):
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        return self.checkfunc(*self.args)
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    def reportinfo(self, basedir=None):
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        return (self.fspath, self.args[2], "checklink: %s" % self.args[0])
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def urlcheck(tryfn, path, lineno, TIMEOUT_URLOPEN): 
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    old = py.std.socket.getdefaulttimeout()
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    py.std.socket.setdefaulttimeout(TIMEOUT_URLOPEN)
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    try:
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        try: 
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            py.builtin.print_("trying remote", tryfn)
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            py.std.urllib2.urlopen(tryfn)
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        finally:
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            py.std.socket.setdefaulttimeout(old)
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    except (py.std.urllib2.URLError, py.std.urllib2.HTTPError): 
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        e = sys.exc_info()[1]
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        if getattr(e, 'code', None) in (401, 403): # authorization required, forbidden
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            py.test.skip("%s: %s" %(tryfn, str(e)))
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        else:
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            py.test.fail("remote reference error %r in %s:%d\n%s" %(
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                         tryfn, path.basename, lineno+1, e))
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def localrefcheck(tryfn, path, lineno): 
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    # assume it should be a file 
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    i = tryfn.find('#')
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    if tryfn.startswith('javascript:'):
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        return # don't check JS refs
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    if i != -1: 
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        anchor = tryfn[i+1:]
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        tryfn = tryfn[:i]
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    else: 
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        anchor = ''
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    fn = path.dirpath(tryfn) 
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    ishtml = fn.ext == '.html' 
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    fn = ishtml and fn.new(ext='.txt') or fn
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    py.builtin.print_("filename is", fn)
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    if not fn.check(): # not ishtml or not fn.check(): 
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        if not py.path.local(tryfn).check(): # the html could be there 
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            py.test.fail("reference error %r in %s:%d" %(
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                          tryfn, path.basename, lineno+1))
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    if anchor: 
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        source = unicode(fn.read(), 'latin1')
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        source = source.lower().replace('-', ' ') # aehem
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        anchor = anchor.replace('-', ' ') 
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        match2 = ".. _`%s`:" % anchor 
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        match3 = ".. _%s:" % anchor 
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        candidates = (anchor, match2, match3)
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        py.builtin.print_("candidates", repr(candidates))
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        for line in source.split('\n'): 
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            line = line.strip()
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            if line in candidates: 
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                break 
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        else: 
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            py.test.fail("anchor reference error %s#%s in %s:%d" %(
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                tryfn, anchor, path.basename, lineno+1))
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if hasattr(sys.stdout, 'fileno') and os.isatty(sys.stdout.fileno()):
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    def log(msg):
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        print(msg)
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else:
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    def log(msg):
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        pass
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def convert_rest_html(source, source_path, stylesheet=None, encoding='latin1'):
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    """ return html latin1-encoded document for the given input. 
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        source  a ReST-string
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        sourcepath where to look for includes (basically)
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        stylesheet path (to be used if any)
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    """
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    from docutils.core import publish_string
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    kwargs = {
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        'stylesheet' : stylesheet, 
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        'stylesheet_path': None,
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        'traceback' : 1, 
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        'embed_stylesheet': 0,
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        'output_encoding' : encoding, 
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        #'halt' : 0, # 'info',
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        'halt_level' : 2, 
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    }
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    # docutils uses os.getcwd() :-(
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    source_path = os.path.abspath(str(source_path))
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    prevdir = os.getcwd()
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    try:
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        #os.chdir(os.path.dirname(source_path))
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        return publish_string(source, source_path, writer_name='html',
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                              settings_overrides=kwargs)
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    finally:
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        os.chdir(prevdir)
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def process(txtpath, encoding='latin1'):
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    """ process a textfile """
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    log("processing %s" % txtpath)
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    assert txtpath.check(ext='.txt')
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    if isinstance(txtpath, py.path.svnwc):
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        txtpath = txtpath.localpath
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    htmlpath = txtpath.new(ext='.html')
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    #svninfopath = txtpath.localpath.new(ext='.svninfo')
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    style = txtpath.dirpath('style.css')
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    if style.check():
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        stylesheet = style.basename
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    else:
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        stylesheet = None
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    content = unicode(txtpath.read(), encoding)
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    doc = convert_rest_html(content, txtpath, stylesheet=stylesheet, encoding=encoding)
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    htmlpath.open('wb').write(doc)
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    #log("wrote %r" % htmlpath)
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    #if txtpath.check(svnwc=1, versioned=1): 
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    #    info = txtpath.info()
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    #    svninfopath.dump(info) 
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if sys.version_info > (3, 0):
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    def _uni(s): return s
 | 
						|
else:
 | 
						|
    def _uni(s):
 | 
						|
        return unicode(s)
 | 
						|
 | 
						|
rex1 = re.compile(r'.*<body>(.*)</body>.*', re.MULTILINE | re.DOTALL)
 | 
						|
rex2 = re.compile(r'.*<div class="document">(.*)</div>.*', re.MULTILINE | re.DOTALL)
 | 
						|
 | 
						|
def strip_html_header(string, encoding='utf8'):
 | 
						|
    """ return the content of the body-tag """ 
 | 
						|
    uni = unicode(string, encoding)
 | 
						|
    for rex in rex1,rex2: 
 | 
						|
        match = rex.search(uni) 
 | 
						|
        if not match: 
 | 
						|
            break 
 | 
						|
        uni = match.group(1) 
 | 
						|
    return uni 
 | 
						|
 | 
						|
class Project: # used for confrest.py files 
 | 
						|
    def __init__(self, sourcepath):
 | 
						|
        self.sourcepath = sourcepath
 | 
						|
    def process(self, path):
 | 
						|
        return process(path)
 | 
						|
    def get_htmloutputpath(self, path):
 | 
						|
        return path.new(ext='html')
 |