#!/usr/bin/env python

import sys
import os

from twisted.python import reflect
from twisted.internet import reactor

# epydoc
import epydoc
from epydoc.cli import cli

if epydoc.__version__[0] == '2':
    # Fix support for epydoc 2.x. Unneeded for 3.x
    class FakeModule:
        def __init__(self, name, level):
            self.__level = level
            self.__name__ = name

        def __repr__(self):
            return '<Fake %s>' % self.__name__
        __str__ = __repr__

        def __nonzero__(self):
            return 1

        def __call__(self, *args, **kw):
            pass #print 'Called:', args

        def __getattr__(self, attr):
            if self.__level == 0:
                raise AttributeError
            return FakeModule(self.__name__+'.'+attr, self.__level-1)

        def __cmp__(self, other):
            if not hasattr(other, '___name__'):
                return -1
            return cmp(self.__name__, other.__name__)


    def fakeOut(modname):
        modpath = modname.split('.')
        prevmod = None
        for m in range(len(modpath)):
            mp = '.'.join(modpath[:m+1])
            nm = FakeModule(mp, 4)
            if prevmod:
                setattr(prevmod, modpath[m], nm)
            sys.modules[mp] = nm
            prevmod = nm

    #fakeOut("twisted")

    # HACK: Another "only doc what we tell you". We don't want epydoc to
    # automatically recurse into subdirectories: "twisted"'s presence was
    # causing "twisted/test" to be docced, even thought we explicitly
    # didn't put any twisted/test in our modnames.

    from epydoc import imports
    orig_find_modules = imports.find_modules

    import re

    def find_modules(dirname):
        if not os.path.isdir(dirname): return []
        found_init = 0
        modules = {}
        dirs = []

        # Search for directories & modules, and check for __init__.py.
        # Don't include duplicates (like foo.py and foo.pyc), and give
        # precedance to the .py files.
        for file in os.listdir(dirname):
            filepath = os.path.join(dirname, file)
            if os.path.isdir(filepath): dirs.append(filepath)
            elif not re.match(r'\w+.py.?', file):
                continue # Ignore things like ".#foo.py" or "a-b.py"
            elif file[-3:] == '.py':
                modules[file] = os.path.join(dirname, file)
                if file == '__init__.py': found_init = 1
            elif file[-4:-1] == '.py':
                modules.setdefault(file[:-1], file)
                if file[:-1] == '__init__.py': found_init = 1
        modules = modules.values()

        # If there was no __init__.py, then this isn't a package
        # directory; return nothing.
        if not found_init: return []

        # Recurse to the child directories.
        # **twisted** here's the change: commented next line out
        #for d in dirs: modules += find_modules(d)
        return modules

    imports.find_modules = find_modules


# Now, set up the list of modules for epydoc to document
modnames = []
def addMod(arg, path, files):
    for fn in files:
        file = os.path.join(path, fn).replace('%s__init__'%os.sep, '')
        if file[-3:] == '.py' and not file.count('%stest%s' % (os.sep,os.sep)):
            modName = file[:-3].replace(os.sep,'.')
            try:
                #print 'pre-loading', modName
                reflect.namedModule(modName)
            except ImportError, e:
                print 'import error:', modName, e
            except Exception, e:
                print 'other error:', modName, e
            else:
                modnames.append(modName)

def main():
    document_all = True # are we doing a full build?
    names = ['buildbot/'] #default, may be overriden below

    #get list of modules/pkgs on cmd-line
    try:
        i = sys.argv.index("--modules")
    except:
        pass
    else:
        names = sys.argv[i+1:]
        document_all = False
        sys.argv[i:] = []
        #sanity check on names
        for i in range(len(names)):
            try:
                j = names[i].rindex('buildbot/')
            except:
                raise SystemExit, 'You can only specify buildbot modules or packages'
            else:
                #strip off any leading directories before the 'twisted/'
                #dir. this makes it easy to specify full paths, such as
                #from TwistedEmacs
                names[i] = names[i][j:]

        old_out_dir = "html"
        #if -o was specified, we need to change it to point to a tmp dir
        #otherwise add our own -o option
        try:
            i = sys.argv.index('-o')
            old_out_dir = sys.argv[i+1]
            try:
                os.mkdir(tmp_dir)
            except OSError:
                pass
            sys.argv[i+1] = tmp_dir
        except ValueError:
            sys.argv[1:1] = ['-o', tmp_dir]

    osrv = sys.argv
    sys.argv=["IGNORE"]

    for name in names:
        if name.endswith(".py"):
            # turn it in to a python module name
            name = name[:-3].replace(os.sep, ".")
            try:
                reflect.namedModule(name)
            except ImportError:
                print 'import error:', name
            except:
                print 'other error:', name
            else:
                modnames.append(name)
        else: #assume it's a dir
            os.path.walk(name, addMod, None)

    sys.argv = osrv

    if 'buildbot.test' in modnames:
        modnames.remove('buildbot.test')
    ##if 'twisted' in modnames:
    ##    modnames.remove('twisted')

    sys.argv.extend(modnames)

    import buildbot

    sys.argv[1:1] = [
        '-n', 'BuildBot %s' % buildbot.version,
        '-u', 'http://buildbot.sourceforge.net/', '--no-private']

    # Make it easy to profile epyrun
    if 0:
        import profile
        profile.run('cli()', 'epyrun.prof')
    else:
        cli()

    print 'Done!'


if __name__ == '__main__':
    main()