563cb9018e
This was implemented for clone, but not for fetch or push, so it was deleted during the conversion, which shows why we need to unify these callback structures.
597 lines
19 KiB
Python
597 lines
19 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright 2010-2014 The pygit2 contributors
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#
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# This file is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License, version 2,
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# as published by the Free Software Foundation.
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#
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# In addition to the permissions in the GNU General Public License,
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# the authors give you unlimited permission to link the compiled
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# version of this file into combinations with other programs,
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# and to distribute those combinations without any restriction
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# coming from the use of this file. (The General Public License
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# restrictions do apply in other respects; for example, they cover
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# modification of the file, and distribution when not linked into
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# a combined executable.)
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING. If not, write to
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# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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# Import from the future
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from __future__ import absolute_import
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# Import from pygit2
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from _pygit2 import Oid
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from .errors import check_error, GitError, Passthrough
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from .ffi import ffi, C
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from .credentials import KeypairFromAgent
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from .refspec import Refspec
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from .utils import to_bytes, strarray_to_strings, StrArray
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def maybe_string(ptr):
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if not ptr:
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return None
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return ffi.string(ptr).decode()
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class TransferProgress(object):
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"""Progress downloading and indexing data during a fetch"""
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def __init__(self, tp):
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self.total_objects = tp.total_objects
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"""Total number of objects to download"""
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self.indexed_objects = tp.indexed_objects
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"""Objects which have been indexed"""
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self.received_objects = tp.received_objects
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"""Objects which have been received up to now"""
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self.local_objects = tp.local_objects
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"""Local objects which were used to fix the thin pack"""
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self.total_deltas = tp.total_deltas
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"""Total number of deltas in the pack"""
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self.indexed_deltas = tp.indexed_deltas
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"""Deltas which have been indexed"""
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self.received_bytes = tp.received_bytes
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""""Number of bytes received up to now"""
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class RemoteCallbacks(object):
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"""Base class for pygit2 remote callbacks.
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Inherit from this class and override the callbacks which you want to use
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in your class, which you can then pass to the network operations.
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"""
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def __init__(self, credentials=None, certificate=None):
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"""Initialize some callbacks in-line
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Use this constructor to provide credentials and certificate
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callbacks in-line, instead of defining your own class for these ones.
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You can e.g. also pass in one of the credential objects as 'credentials'
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instead of creating a function which returns a hard-coded object.
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"""
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if credentials is not None:
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self.credentials = credentials
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if certificate is not None:
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self.certificate = certificate
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def sideband_progress(self, string):
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"""Progress output callback
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Override this function with your own progress reporting function
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:param str string: Progress output from the remote
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"""
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pass
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def credentials(self, url, username_from_url, allowed_types):
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"""Credentials callback
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If the remote server requires authentication, this function will
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be called and its return value used for authentication. Override
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it if you want to be able to perform authentication.
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Parameters:
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- url (str) -- The url of the remote.
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- username_from_url (str or None) -- Username extracted from the url,
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if any.
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- allowed_types (int) -- Credential types supported by the remote.
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Return value: credential
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"""
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raise Passthrough
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def certificate_check(self, certificate, valid, host):
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"""Certificate callback
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Override with your own function to determine whether the accept
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the server's certificate.
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:param None certificate: The certificate. It is currently always None
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while we figure out how to represent it cross-platform
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:param bool valid: Whether the TLS/SSH library thinks the certificate
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is valid
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:param str host: The hostname we want to connect to
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Return value: True to connect, False to abort
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"""
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raise Passthrough
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def transfer_progress(self, stats):
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"""Transfer progress callback
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Override with your own function to report transfer progress.
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:param TransferProgress stats: The progress up to now
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"""
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pass
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def update_tips(self, refname, old, new):
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"""Update tips callabck
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Override with your own function to report reference updates
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:param str refname: the name of the reference that's being updated
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:param Oid old: the reference's old value
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:param Oid new: the reference's new value
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"""
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def push_update_reference(self, refname, message):
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"""Push update reference callback
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Override with your own function to report the remote's
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acceptace or rejection of reference updates.
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:param str refname: the name of the reference (on the remote)
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:param str messsage: rejection message from the remote. If None, the update was accepted.
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"""
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def _fill_fetch_options(self, fetch_opts):
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fetch_opts.callbacks.sideband_progress = self._sideband_progress_cb
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fetch_opts.callbacks.transfer_progress = self._transfer_progress_cb
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fetch_opts.callbacks.update_tips = self._update_tips_cb
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fetch_opts.callbacks.credentials = self._credentials_cb
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fetch_opts.callbacks.certificate_check = self._certificate_cb
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# We need to make sure that this handle stays alive
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self._self_handle = ffi.new_handle(self)
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fetch_opts.callbacks.payload = self._self_handle
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self._stored_exception = None
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def _fill_push_options(self, push_opts):
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push_opts.callbacks.sideband_progress = self._sideband_progress_cb
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push_opts.callbacks.transfer_progress = self._transfer_progress_cb
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push_opts.callbacks.update_tips = self._update_tips_cb
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push_opts.callbacks.credentials = self._credentials_cb
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push_opts.callbacks.certificate_check = self._certificate_cb
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push_opts.callbacks.push_update_reference = self._push_update_reference_cb
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# We need to make sure that this handle stays alive
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self._self_handle = ffi.new_handle(self)
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push_opts.callbacks.payload = self._self_handle
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# These functions exist to be called by the git_remote as
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# callbacks. They proxy the call to whatever the user set
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@ffi.callback('git_transfer_progress_cb')
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def _transfer_progress_cb(stats_ptr, data):
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self = ffi.from_handle(data)
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if not hasattr(self, 'transfer_progress') \
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or not self.transfer_progress:
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return 0
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try:
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self.transfer_progress(TransferProgress(stats_ptr))
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except Exception as e:
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self._stored_exception = e
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return C.GIT_EUSER
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return 0
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@ffi.callback('git_transport_message_cb')
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def _sideband_progress_cb(string, length, data):
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self = ffi.from_handle(data)
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if not hasattr(self, 'progress') or not self.progress:
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return 0
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try:
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s = ffi.string(string, length).decode()
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self.progress(s)
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except Exception as e:
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self._stored_exception = e
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return C.GIT_EUSER
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return 0
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@ffi.callback('int (*update_tips)(const char *refname, const git_oid *a,'
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'const git_oid *b, void *data)')
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def _update_tips_cb(refname, a, b, data):
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self = ffi.from_handle(data)
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if not hasattr(self, 'update_tips') or not self.update_tips:
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return 0
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try:
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s = maybe_string(refname)
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a = Oid(raw=bytes(ffi.buffer(a)[:]))
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b = Oid(raw=bytes(ffi.buffer(b)[:]))
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self.update_tips(s, a, b)
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except Exception as e:
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self._stored_exception = e
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return C.GIT_EUSER
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return 0
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@ffi.callback("int (*push_update_reference)(const char *ref, const char *msg, void *data)")
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def _push_update_reference_cb(ref, msg, data):
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self = ffi.from_handle(data)
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if not hasattr(self, 'push_update_reference') or not self.push_update_reference:
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return 0
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try:
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refname = ffi.string(ref)
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message = maybe_string(msg)
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self.push_update_reference(refname, message)
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except Exception as e:
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self._stored_exception = e
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return C.GIT_EUSER
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return 0
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@ffi.callback('int (*credentials)(git_cred **cred, const char *url,'
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'const char *username_from_url, unsigned int allowed_types,'
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'void *data)')
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def _credentials_cb(cred_out, url, username, allowed, data):
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self = ffi.from_handle(data)
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if not hasattr(self, 'credentials') or not self.credentials:
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return 0
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try:
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ccred = get_credentials(self.credentials, url, username, allowed)
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cred_out[0] = ccred[0]
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except Exception as e:
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if e is Passthrough:
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return C.GIT_PASSTHROUGH
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self._stored_exception = e
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return C.GIT_EUSER
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return 0
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@ffi.callback('int (*git_transport_certificate_check_cb)'
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'(git_cert *cert, int valid, const char *host, void *payload)')
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def _certificate_cb(cert_i, valid, host, data):
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self = ffi.from_handle(data)
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# We want to simulate what should happen if libgit2 supported pass-through for
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# this callback. For SSH, 'valid' is always False, because it doesn't look
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# at known_hosts, but we do want to let it through in order to do what libgit2 would
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# if the callback were not set.
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try:
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is_ssh = cert_i.cert_type == C.GIT_CERT_HOSTKEY_LIBSSH2
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if not hasattr(self, 'certificate_check') or not self.certificate_check:
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raise Passthrough
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# python's parsing is deep in the libraries and assumes an OpenSSL-owned cert
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val = self.certificate_check(None, bool(valid), ffi.string(host))
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if not val:
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return C.GIT_ECERTIFICATE
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except Exception as e:
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if e is Passthrough:
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if is_ssh:
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return 0
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elif valid:
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return 0
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else:
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return C.GIT_ECERTIFICATE
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self._stored_exception = e
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return C.GIT_EUSER
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return 0
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class Remote(object):
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def __init__(self, repo, ptr):
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"""The constructor is for internal use only"""
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self._repo = repo
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self._remote = ptr
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self._stored_exception = None
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def __del__(self):
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C.git_remote_free(self._remote)
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@property
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def name(self):
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"""Name of the remote"""
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return maybe_string(C.git_remote_name(self._remote))
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@property
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def url(self):
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"""Url of the remote"""
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return maybe_string(C.git_remote_url(self._remote))
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@property
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def push_url(self):
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"""Push url of the remote"""
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return maybe_string(C.git_remote_pushurl(self._remote))
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def save(self):
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"""Save a remote to its repository's configuration."""
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err = C.git_remote_save(self._remote)
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check_error(err)
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def fetch(self, refspecs=None, callbacks=None, message=None):
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"""Perform a fetch against this remote. Returns a <TransferProgress>
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object.
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"""
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fetch_opts = ffi.new('git_fetch_options *')
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err = C.git_fetch_init_options(fetch_opts, C.GIT_FETCH_OPTIONS_VERSION)
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if callbacks is None:
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callbacks = RemoteCallbacks()
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callbacks._fill_fetch_options(fetch_opts)
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try:
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with StrArray(refspecs) as arr:
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err = C.git_remote_fetch(self._remote, arr, fetch_opts, to_bytes(message))
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if callbacks._stored_exception:
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raise callbacks._stored_exception
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check_error(err)
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finally:
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callbacks._self_handle = None
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return TransferProgress(C.git_remote_stats(self._remote))
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@property
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def refspec_count(self):
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"""Total number of refspecs in this remote"""
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return C.git_remote_refspec_count(self._remote)
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def get_refspec(self, n):
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"""Return the <Refspec> object at the given position."""
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spec = C.git_remote_get_refspec(self._remote, n)
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return Refspec(self, spec)
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@property
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def fetch_refspecs(self):
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"""Refspecs that will be used for fetching"""
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specs = ffi.new('git_strarray *')
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err = C.git_remote_get_fetch_refspecs(specs, self._remote)
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check_error(err)
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return strarray_to_strings(specs)
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@property
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def push_refspecs(self):
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"""Refspecs that will be used for pushing"""
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specs = ffi.new('git_strarray *')
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err = C.git_remote_get_push_refspecs(specs, self._remote)
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check_error(err)
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return strarray_to_strings(specs)
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def push(self, specs, callbacks=None):
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"""Push the given refspec to the remote. Raises ``GitError`` on
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protocol error or unpack failure.
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:param [str] specs: push refspecs to use
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"""
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push_opts = ffi.new('git_push_options *')
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err = C.git_push_init_options(push_opts, C.GIT_PUSH_OPTIONS_VERSION)
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if callbacks is None:
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callbacks = RemoteCallbacks()
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callbacks._fill_push_options(push_opts)
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# Build custom callback structure
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try:
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with StrArray(specs) as refspecs:
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err = C.git_remote_push(self._remote, refspecs, push_opts)
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check_error(err)
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finally:
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callbacks._self_handle = None
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def get_credentials(fn, url, username, allowed):
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"""Call fn and return the credentials object"""
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url_str = maybe_string(url)
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username_str = maybe_string(username)
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creds = fn(url_str, username_str, allowed)
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if not hasattr(creds, 'credential_type') \
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or not hasattr(creds, 'credential_tuple'):
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raise TypeError("credential does not implement interface")
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cred_type = creds.credential_type
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if not (allowed & cred_type):
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raise TypeError("invalid credential type")
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ccred = ffi.new('git_cred **')
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if cred_type == C.GIT_CREDTYPE_USERPASS_PLAINTEXT:
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name, passwd = creds.credential_tuple
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err = C.git_cred_userpass_plaintext_new(ccred, to_bytes(name),
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to_bytes(passwd))
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elif cred_type == C.GIT_CREDTYPE_SSH_KEY:
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name, pubkey, privkey, passphrase = creds.credential_tuple
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if pubkey is None and privkey is None:
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err = C.git_cred_ssh_key_from_agent(ccred, to_bytes(name))
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else:
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err = C.git_cred_ssh_key_new(ccred, to_bytes(name),
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to_bytes(pubkey), to_bytes(privkey),
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to_bytes(passphrase))
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else:
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raise TypeError("unsupported credential type")
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check_error(err)
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return ccred
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class RemoteCollection(object):
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"""Collection of configured remotes
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You can use this class to look up and manage the remotes configured
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in a repository. You can access repositories using index
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access. E.g. to look up the "origin" remote, you can use
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>>> repo.remotes["origin"]
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"""
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def __init__(self, repo):
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self._repo = repo;
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def __len__(self):
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names = ffi.new('git_strarray *')
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try:
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err = C.git_remote_list(names, self._repo._repo)
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check_error(err)
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return names.count
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finally:
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C.git_strarray_free(names)
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def __iter__(self):
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names = ffi.new('git_strarray *')
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try:
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err = C.git_remote_list(names, self._repo._repo)
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check_error(err)
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cremote = ffi.new('git_remote **')
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for i in range(names.count):
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err = C.git_remote_lookup(cremote, self._repo._repo, names.strings[i])
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check_error(err)
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yield Remote(self._repo, cremote[0])
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finally:
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C.git_strarray_free(names)
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def __getitem__(self, name):
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if isinstance(name, int):
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return list(self)[name]
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cremote = ffi.new('git_remote **')
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err = C.git_remote_lookup(cremote, self._repo._repo, to_bytes(name))
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check_error(err)
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return Remote(self._repo, cremote[0])
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def create(self, name, url, fetch=None):
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"""Create a new remote with the given name and url. Returns a <Remote>
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object.
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If 'fetch' is provided, this fetch refspec will be used instead of the default
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"""
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cremote = ffi.new('git_remote **')
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if fetch:
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err = C.git_remote_create_with_fetchspec(cremote, self._repo._repo, to_bytes(name), to_bytes(url), to_bytes(fetch))
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else:
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err = C.git_remote_create(cremote, self._repo._repo, to_bytes(name), to_bytes(url))
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check_error(err)
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|
|
|
return Remote(self._repo, cremote[0])
|
|
|
|
def rename(self, name, new_name):
|
|
"""Rename a remote in the configuration. The refspecs in standard
|
|
format will be renamed.
|
|
|
|
Returns a list of fetch refspecs (list of strings) which were not in
|
|
the standard format and thus could not be remapped.
|
|
"""
|
|
|
|
if not new_name:
|
|
raise ValueError("Current remote name must be a non-empty string")
|
|
|
|
if not new_name:
|
|
raise ValueError("New remote name must be a non-empty string")
|
|
|
|
problems = ffi.new('git_strarray *')
|
|
err = C.git_remote_rename(problems, self._repo._repo, to_bytes(name), to_bytes(new_name))
|
|
check_error(err)
|
|
|
|
ret = strarray_to_strings(problems)
|
|
C.git_strarray_free(problems)
|
|
|
|
return ret
|
|
|
|
def delete(self, name):
|
|
"""Remove a remote from the configuration
|
|
|
|
All remote-tracking branches and configuration settings for the remote will be removed.
|
|
"""
|
|
err = C.git_remote_delete(self._repo._repo, to_bytes(name))
|
|
check_error(err)
|
|
|
|
def set_url(self, name, url):
|
|
""" Set the URL for a remote
|
|
"""
|
|
err = C.git_remote_set_url(self._repo._repo, to_bytes(name), to_bytes(url))
|
|
check_error(err)
|
|
|
|
def set_push_url(self, name, url):
|
|
"""Set the push-URL for a remote
|
|
"""
|
|
err = C.git_remote_set_pushurl(self._repo._repo, to_bytes(name), to_bytes(url))
|
|
check_error(err)
|
|
|
|
def add_fetch(self, name, refspec):
|
|
"""Add a fetch refspec (str) to the remote
|
|
"""
|
|
|
|
err = C.git_remote_add_fetch(self._repo._repo, to_bytes(name), to_bytes(refspec))
|
|
check_error(err)
|
|
|
|
def add_push(self, name, refspec):
|
|
"""Add a push refspec (str) to the remote
|
|
"""
|
|
|
|
err = C.git_remote_add_push(self._repo._repo, to_bytes(name), to_bytes(refspec))
|
|
check_error(err)
|