gecko/tools/mach_commands.py

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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, # You can obtain one at http://mozilla.org/MPL/2.0/.
from __future__ import unicode_literals
from mach.decorators import (
CommandArgument,
CommandProvider,
Command,
)
@CommandProvider
class SearchProvider(object):
@Command('mxr', category='misc',
description='Search for something in MXR.')
@CommandArgument('term', nargs='+', help='Term(s) to search for.')
def mxr(self, term):
import webbrowser
term = ' '.join(term)
uri = 'https://mxr.mozilla.org/mozilla-central/search?string=%s' % term
webbrowser.open_new_tab(uri)
@Command('dxr', category='misc',
description='Search for something in DXR.')
@CommandArgument('term', nargs='+', help='Term(s) to search for.')
def dxr(self, term):
import webbrowser
term = ' '.join(term)
uri = 'http://dxr.mozilla.org/search?tree=mozilla-central&q=%s' % term
webbrowser.open_new_tab(uri)
@Command('mdn', category='misc',
description='Search for something on MDN.')
@CommandArgument('term', nargs='+', help='Term(s) to search for.')
def mdn(self, term):
import webbrowser
term = ' '.join(term)
uri = 'https://developer.mozilla.org/search?q=%s' % term
webbrowser.open_new_tab(uri)
@Command('google', category='misc',
description='Search for something on Google.')
@CommandArgument('term', nargs='+', help='Term(s) to search for.')
def google(self, term):
import webbrowser
term = ' '.join(term)
uri = 'https://www.google.com/search?q=%s' % term
webbrowser.open_new_tab(uri)
@Command('search', category='misc',
description='Search for something on the Internets. '
'This will open 3 new browser tabs and search for the term on Google, '
'MDN, and MXR.')
@CommandArgument('term', nargs='+', help='Term(s) to search for.')
def search(self, term):
self.google(term)
self.mdn(term)
self.mxr(term)
class Interface(object):
'''
Represents an XPIDL interface, in what file it is defined, what it derives
from, what its uuid is, and where in the source file the uuid is.
'''
def __init__(self, filename, production):
import xpidl
assert isinstance(production, xpidl.Interface)
self.name = production.name
self.base = production.base
self.filename = filename
self.uuid = production.attributes.uuid
location = production.location
data = location._lexdata
attr_pos = data.rfind(b'[', 0, location._lexpos)
# uuid is always lowercase, but actual file content may not be.
self.uuid_pos = data[attr_pos:location._lexpos].lower() \
.rfind(self.uuid) + attr_pos
class InterfaceRegistry(object):
'''
Tracks XPIDL interfaces, and allow to search them by name and by the
interface they derive from.
'''
def __init__(self):
self.by_name = {}
self.by_base = {}
def get_by_name(self, name):
return self.by_name.get(name, [])
def get_by_base(self, base):
return self.by_base.get(base, [])
def add(self, interface):
l = self.by_name.setdefault(interface.name, [])
l.append(interface)
l = self.by_base.setdefault(interface.base, [])
l.append(interface)
class IDLUpdater(object):
'''
Updates interfaces uuids in IDL files.
'''
def __init__(self, interfaces):
from mozpack.copier import FileRegistry
self.interfaces = interfaces;
self.registry = FileRegistry()
def add(self, name):
for interface in self.interfaces.get_by_name(name):
self._add(interface)
def _add(self, interface):
from mozpack.files import GeneratedFile
from uuid import uuid4
path = interface.filename
if not self.registry.contains(path):
self.registry.add(path, GeneratedFile(open(path).read()))
content = self.registry[path].content
content = content[:interface.uuid_pos] + str(uuid4()) + \
content[interface.uuid_pos + len(interface.uuid):]
self.registry[path].content = content
# Recurse through all the interfaces deriving from this one
for derived in self.interfaces.get_by_base(interface.name):
self._add(derived)
def update(self):
for p, f in self.registry:
f.copy(p)
@CommandProvider
class UUIDProvider(object):
@Command('uuid', category='misc',
description='Generate a uuid.')
@CommandArgument('--format', '-f', choices=['idl', 'cpp'], default='idl',
help='Output format for the generated uuid.')
def uuid(self, format):
import uuid
u = uuid.uuid4()
if format == 'idl':
print(u)
else:
u = u.hex
print('{ 0x%s, 0x%s, 0x%s, \\' % (u[0:8], u[8:12], u[12:16]))
pairs = tuple(map(lambda n: u[n:n+2], range(16, 32, 2)))
print((' { ' + '0x%s, ' * 7 + '0x%s } }') % pairs)
@Command('update-uuids', category='misc',
description='Update IDL files with new UUIDs.')
@CommandArgument('--path', default='.',
help='Base path under which uuids will be searched.')
@CommandArgument('interfaces', nargs='+',
help='Changed interfaces whose UUIDs need to be updated. ' +
'Their descendants are updated as well.')
def update_uuids(self, path, interfaces):
import os
import xpidl
from mozpack.files import FileFinder
import mozpack.path
from tempfile import mkdtemp
finder = FileFinder(path, find_executables=False)
# Avoid creating xpidllex and xpidlyacc in the current directory.
tmpdir = mkdtemp()
try:
parser = xpidl.IDLParser(outputdir=tmpdir)
registry = InterfaceRegistry()
for p, f in finder.find('**/*.idl'):
p = mozpack.path.join(path, p)
try:
content = f.open().read()
idl = parser.parse(content, filename=p)
except Exception:
continue
for prod in idl.productions:
if isinstance(prod, xpidl.Interface):
registry.add(Interface(p, prod))
finally:
import shutil
shutil.rmtree(tmpdir)
updates = IDLUpdater(registry)
for interface in interfaces:
updates.add(interface)
updates.update()