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# Copyright 2009, Alexander Solovyov <piranha@piranha.org.ua>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
"""extend schemes with shortcuts to repository swarms
This extension allows you to specify shortcuts for parent URLs with a
lot of repositories to act like a scheme, for example::
[schemes]
py = http://code.python.org/hg/
After that you can use it like::
hg clone py://trunk/
Additionally there is support for some more complex schemas, for
example used by Google Code::
[schemes]
gcode = http://{1}.googlecode.com/hg/
The syntax is taken from Mercurial templates, and you have unlimited
number of variables, starting with ``{1}`` and continuing with
``{2}``, ``{3}`` and so on. This variables will receive parts of URL
supplied, split by ``/``. Anything not specified as ``{part}`` will be
just appended to an URL.
For convenience, the extension adds these schemes by default::
[schemes]
py = http://hg.python.org/
bb = https://bitbucket.org/
bb+ssh = ssh://hg@bitbucket.org/
gcode = https://{1}.googlecode.com/hg/
kiln = https://{1}.kilnhg.com/Repo/
You can override a predefined scheme by defining a new scheme with the
same name.
"""
from __future__ import annotations
import os
import re
from mercurial.i18n import _
from mercurial import (
error,
extensions,
hg,
pycompat,
registrar,
templater,
)
from mercurial.utils import (
urlutil,
)
cmdtable = {}
command = registrar.command(cmdtable)
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = b'ships-with-hg-core'
_partre = re.compile(br'{(\d+)\}')
class ShortRepository:
def __init__(self, url, scheme, templater):
self.scheme = scheme
self.templater = templater
self.url = url
try:
self.parts = max(map(int, _partre.findall(self.url)))
except ValueError:
self.parts = 0
def __repr__(self):
return b'<ShortRepository: %s>' % self.scheme
def make_peer(self, ui, path, *args, **kwargs):
new_url = self.resolve(path.rawloc)
path = path.copy(new_raw_location=new_url)
cls = hg.peer_schemes.get(path.url.scheme)
if cls is not None:
return cls.make_peer(ui, path, *args, **kwargs)
return None
def instance(self, ui, url, create, intents=None, createopts=None):
url = self.resolve(url)
u = urlutil.url(url)
scheme = u.scheme or b'file'
if scheme in hg.peer_schemes:
cls = hg.peer_schemes[scheme]
elif scheme in hg.repo_schemes:
cls = hg.repo_schemes[scheme]
else:
cls = hg.LocalFactory
return cls.instance(
ui, url, create, intents=intents, createopts=createopts
)
def resolve(self, url):
# Should this use the urlutil.url class, or is manual parsing better?
try:
url = url.split(b'://', 1)[1]
except IndexError:
raise error.Abort(_(b"no '://' in scheme url '%s'") % url)
parts = url.split(b'/', self.parts)
if len(parts) > self.parts:
tail = parts[-1]
parts = parts[:-1]
else:
tail = b''
context = {b'%d' % (i + 1): v for i, v in enumerate(parts)}
return b''.join(self.templater.process(self.url, context)) + tail
def hasdriveletter(orig, path):
if path:
for scheme in schemes:
if path.startswith(scheme + b':'):
return False
return orig(path)
schemes = {
b'py': b'http://hg.python.org/',
b'bb': b'https://bitbucket.org/',
b'bb+ssh': b'ssh://hg@bitbucket.org/',
b'gcode': b'https://{1}.googlecode.com/hg/',
b'kiln': b'https://{1}.kilnhg.com/Repo/',
}
def _check_drive_letter(scheme: bytes) -> None:
"""check if a scheme conflict with a Windows drive letter"""
if (
pycompat.iswindows
and len(scheme) == 1
and scheme.isalpha()
and os.path.exists(b'%s:\\' % scheme)
):
msg = _(b'custom scheme %s:// conflicts with drive letter %s:\\\n')
msg %= (scheme, scheme.upper())
raise error.Abort(msg)
def extsetup(ui):
schemes.update(dict(ui.configitems(b'schemes')))
t = templater.engine(templater.parse)
for scheme, url in schemes.items():
_check_drive_letter(scheme)
url_scheme = urlutil.url(url).scheme
if url_scheme in hg.peer_schemes:
hg.peer_schemes[scheme] = ShortRepository(url, scheme, t)
else:
hg.repo_schemes[scheme] = ShortRepository(url, scheme, t)
extensions.wrapfunction(urlutil, 'hasdriveletter', hasdriveletter)
@command(b'debugexpandscheme', norepo=True)
def expandscheme(ui, url, **opts):
"""given a repo path, provide the scheme-expanded path"""
scheme = urlutil.url(url).scheme
if scheme in hg.peer_schemes:
cls = hg.peer_schemes[scheme]
else:
cls = hg.repo_schemes.get(scheme)
if cls is not None and isinstance(cls, ShortRepository):
url = cls.resolve(url)
ui.write(url + b'\n')
|
