Changeset - 9fdd5ec8bc11
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0 2 0
Mads Kiilerich - 11 years ago 2014-08-21 23:46:55
madski@unity3d.com
cleanup: be less verbose and less aggressive when catching exceptions
2 files changed with 2 insertions and 4 deletions:
0 comments (0 inline, 0 general)
kallithea/controllers/files.py
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# -*- coding: utf-8 -*-
 
# This program is free software: you can redistribute it and/or modify
 
# it under the terms of the GNU General Public License as published by
 
# the Free Software Foundation, either version 3 of the License, or
 
# (at your option) any later version.
 
#
 
# This program is distributed in the hope that it will be useful,
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
# GNU General Public License for more details.
 
#
 
# You should have received a copy of the GNU General Public License
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
"""
 
kallithea.controllers.files
 
~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

	
 
Files controller for Kallithea
 

	
 
This file was forked by the Kallithea project in July 2014.
 
Original author and date, and relevant copyright and licensing information is below:
 
:created_on: Apr 21, 2010
 
:author: marcink
 
:copyright: (c) 2013 RhodeCode GmbH, and others.
 
:license: GPLv3, see LICENSE.md for more details.
 
"""
 

	
 
from __future__ import with_statement
 
import os
 
import logging
 
import traceback
 
import tempfile
 
import shutil
 

	
 
from pylons import request, response, tmpl_context as c, url
 
from pylons.i18n.translation import _
 
from pylons.controllers.util import redirect
 
from kallithea.lib.utils import jsonify, action_logger
 

	
 
from kallithea.lib import diffs
 
from kallithea.lib import helpers as h
 

	
 
from kallithea.lib.compat import OrderedDict
 
from kallithea.lib.utils2 import convert_line_endings, detect_mode, safe_str,\
 
    str2bool
 
from kallithea.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator
 
from kallithea.lib.base import BaseRepoController, render
 
from kallithea.lib.vcs.backends.base import EmptyChangeset
 
from kallithea.lib.vcs.conf import settings
 
from kallithea.lib.vcs.exceptions import RepositoryError, \
 
    ChangesetDoesNotExistError, EmptyRepositoryError, \
 
    ImproperArchiveTypeError, VCSError, NodeAlreadyExistsError,\
 
    NodeDoesNotExistError, ChangesetError, NodeError
 
from kallithea.lib.vcs.nodes import FileNode
 

	
 
from kallithea.model.repo import RepoModel
 
from kallithea.model.scm import ScmModel
 
from kallithea.model.db import Repository
 

	
 
from kallithea.controllers.changeset import anchor_url, _ignorews_url,\
 
    _context_url, get_line_ctx, get_ignore_ws
 
from webob.exc import HTTPNotFound
 
from kallithea.lib.exceptions import NonRelativePathError
 

	
 

	
 
log = logging.getLogger(__name__)
 

	
 

	
 
class FilesController(BaseRepoController):
 

	
 
    def __before__(self):
 
        super(FilesController, self).__before__()
 
        c.cut_off_limit = self.cut_off_limit
 

	
 
    def __get_cs(self, rev, silent_empty=False):
 
        """
 
        Safe way to get changeset if error occur it redirects to tip with
 
        proper message
 

	
 
        :param rev: revision to fetch
 
        :silent_empty: return None if repository is empty
 
        """
 

	
 
        try:
 
            return c.db_repo_scm_instance.get_changeset(rev)
 
        except EmptyRepositoryError, e:
 
            if silent_empty:
 
                return None
 
            url_ = url('files_add_home',
 
                       repo_name=c.repo_name,
 
                       revision=0, f_path='', anchor='edit')
 
            add_new = h.link_to(_('Click here to add new file'), url_, class_="alert-link")
 
            h.flash(h.literal(_('There are no files yet. %s') % add_new),
 
                    category='warning')
 
            raise HTTPNotFound()
 
        except(ChangesetDoesNotExistError, LookupError), e:
 
            log.error(traceback.format_exc())
 
            msg = _('Such revision does not exist for this repository')
 
            h.flash(msg, category='error')
 
            raise HTTPNotFound()
 
        except RepositoryError, e:
 
            h.flash(safe_str(e), category='error')
 
            raise HTTPNotFound()
 

	
 
    def __get_filenode(self, cs, path):
 
        """
 
        Returns file_node or raise HTTP error.
 

	
 
        :param cs: given changeset
 
        :param path: path to lookup
 
        """
 

	
 
        try:
 
            file_node = cs.get_node(path)
 
            if file_node.is_dir():
 
                raise RepositoryError('given path is a directory')
 
        except(ChangesetDoesNotExistError,), e:
 
            log.error(traceback.format_exc())
 
            msg = _('Such revision does not exist for this repository')
 
            h.flash(msg, category='error')
 
            raise HTTPNotFound()
 
        except RepositoryError, e:
 
            h.flash(safe_str(e), category='error')
 
            raise HTTPNotFound()
 

	
 
        return file_node
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    def index(self, repo_name, revision, f_path, annotate=False):
 
        # redirect to given revision from form if given
 
        post_revision = request.POST.get('at_rev', None)
 
        if post_revision:
 
            cs = self.__get_cs(post_revision) # FIXME - unused!
 

	
 
        c.revision = revision
 
        c.changeset = self.__get_cs(revision)
 
        c.branch = request.GET.get('branch', None)
 
        c.f_path = f_path
 
        c.annotate = annotate
 
        cur_rev = c.changeset.revision
 

	
 
        # prev link
 
        try:
 
            prev_rev = c.db_repo_scm_instance.get_changeset(cur_rev).prev(c.branch)
 
            c.url_prev = url('files_home', repo_name=c.repo_name,
 
                         revision=prev_rev.raw_id, f_path=f_path)
 
            if c.branch:
 
                c.url_prev += '?branch=%s' % c.branch
 
        except (ChangesetDoesNotExistError, VCSError):
 
            c.url_prev = '#'
 

	
 
        # next link
 
        try:
 
            next_rev = c.db_repo_scm_instance.get_changeset(cur_rev).next(c.branch)
 
            c.url_next = url('files_home', repo_name=c.repo_name,
 
                     revision=next_rev.raw_id, f_path=f_path)
 
            if c.branch:
 
                c.url_next += '?branch=%s' % c.branch
 
        except (ChangesetDoesNotExistError, VCSError):
 
            c.url_next = '#'
 

	
 
        # files or dirs
 
        try:
 
            c.file = c.changeset.get_node(f_path)
 

	
 
            if c.file.is_file():
 
                c.load_full_history = False
 
                file_last_cs = c.file.last_changeset
 
                c.file_changeset = (c.changeset
 
                                    if c.changeset.revision < file_last_cs.revision
 
                                    else file_last_cs)
 
                #determine if we're on branch head
 
                _branches = c.db_repo_scm_instance.branches
 
                c.on_branch_head = revision in _branches.keys() + _branches.values()
 
                _hist = []
 
                c.file_history = []
 
                if c.load_full_history:
 
                    c.file_history, _hist = self._get_node_history(c.changeset, f_path)
 

	
 
                c.authors = []
 
                for a in set([x.author for x in _hist]):
 
                    c.authors.append((h.email(a), h.person(a)))
 
            else:
 
                c.authors = c.file_history = []
 
        except RepositoryError, e:
 
            h.flash(safe_str(e), category='error')
 
            raise HTTPNotFound()
 

	
 
        if request.environ.get('HTTP_X_PARTIAL_XHR'):
 
            return render('files/files_ypjax.html')
 

	
 
        return render('files/files.html')
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    @jsonify
 
    def history(self, repo_name, revision, f_path):
 
        changeset = self.__get_cs(revision)
 
        f_path = f_path
 
        _file = changeset.get_node(f_path)
 
        if _file.is_file():
 
            file_history, _hist = self._get_node_history(changeset, f_path)
 

	
 
            res = []
 
            for obj in file_history:
 
                res.append({
 
                    'text': obj[1],
 
                    'children': [{'id': o[0], 'text': o[1]} for o in obj[0]]
 
                })
 

	
 
            data = {
 
                'more': False,
 
                'results': res
 
            }
 
            return data
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    def authors(self, repo_name, revision, f_path):
 
        changeset = self.__get_cs(revision)
 
        f_path = f_path
 
        _file = changeset.get_node(f_path)
 
        if _file.is_file():
 
            file_history, _hist = self._get_node_history(changeset, f_path)
 
            c.authors = []
 
            for a in set([x.author for x in _hist]):
 
                c.authors.append((h.email(a), h.person(a)))
 
            return render('files/files_history_box.html')
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    def rawfile(self, repo_name, revision, f_path):
 
        cs = self.__get_cs(revision)
 
        file_node = self.__get_filenode(cs, f_path)
 

	
 
        response.content_disposition = 'attachment; filename=%s' % \
 
            safe_str(f_path.split(Repository.url_sep())[-1])
 

	
 
        response.content_type = file_node.mimetype
 
        return file_node.content
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    def raw(self, repo_name, revision, f_path):
 
        cs = self.__get_cs(revision)
 
        file_node = self.__get_filenode(cs, f_path)
 

	
 
        raw_mimetype_mapping = {
 
            # map original mimetype to a mimetype used for "show as raw"
 
            # you can also provide a content-disposition to override the
 
            # default "attachment" disposition.
 
            # orig_type: (new_type, new_dispo)
 

	
 
            # show images inline:
 
            'image/x-icon': ('image/x-icon', 'inline'),
 
            'image/png': ('image/png', 'inline'),
 
            'image/gif': ('image/gif', 'inline'),
 
            'image/jpeg': ('image/jpeg', 'inline'),
 
            'image/svg+xml': ('image/svg+xml', 'inline'),
 
        }
 

	
 
        mimetype = file_node.mimetype
 
        try:
 
            mimetype, dispo = raw_mimetype_mapping[mimetype]
 
        except KeyError:
 
            # we don't know anything special about this, handle it safely
 
            if file_node.is_binary:
 
                # do same as download raw for binary files
 
                mimetype, dispo = 'application/octet-stream', 'attachment'
 
            else:
 
                # do not just use the original mimetype, but force text/plain,
 
                # otherwise it would serve text/html and that might be unsafe.
 
                # Note: underlying vcs library fakes text/plain mimetype if the
 
                # mimetype can not be determined and it thinks it is not
 
                # binary.This might lead to erroneous text display in some
 
                # cases, but helps in other cases, like with text files
 
                # without extension.
 
                mimetype, dispo = 'text/plain', 'inline'
 

	
 
        if dispo == 'attachment':
 
            dispo = 'attachment; filename=%s' % \
 
                        safe_str(f_path.split(os.sep)[-1])
 

	
 
        response.content_disposition = dispo
 
        response.content_type = mimetype
 
        return file_node.content
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.write', 'repository.admin')
 
    def delete(self, repo_name, revision, f_path):
 
        repo = c.db_repo
 
        if repo.enable_locking and repo.locked[0]:
 
            h.flash(_('This repository is has been locked by %s on %s')
 
                % (h.person_by_id(repo.locked[0]),
 
                   h.fmt_date(h.time_to_datetime(repo.locked[1]))),
 
                'warning')
 
            return redirect(h.url('files_home',
 
                                  repo_name=repo_name, revision='tip'))
 

	
 
        # check if revision is a branch identifier- basically we cannot
 
        # create multiple heads via file editing
 
        _branches = repo.scm_instance.branches
 
        # check if revision is a branch name or branch hash
 
        if revision not in _branches.keys() + _branches.values():
 
            h.flash(_('You can only delete files with revision '
 
                      'being a valid branch '), category='warning')
 
            return redirect(h.url('files_home',
 
                                  repo_name=repo_name, revision='tip',
 
                                  f_path=f_path))
 

	
 
        r_post = request.POST
 

	
 
        c.cs = self.__get_cs(revision)
 
        c.file = self.__get_filenode(c.cs, f_path)
 

	
 
        c.default_message = _('Deleted file %s via Kallithea') % (f_path)
 
        c.f_path = f_path
 
        node_path = f_path
 
        author = self.authuser.full_contact
 

	
 
        if r_post:
 
            message = r_post.get('message') or c.default_message
 

	
 
            try:
 
                nodes = {
 
                    node_path: {
 
                        'content': ''
 
                    }
 
                }
 
                self.scm_model.delete_nodes(
 
                    user=c.authuser.user_id, repo=c.db_repo,
 
                    message=message,
 
                    nodes=nodes,
 
                    parent_cs=c.cs,
 
                    author=author,
 
                )
 

	
 
                h.flash(_('Successfully deleted file %s') % f_path,
 
                        category='success')
 
            except Exception:
 
                log.error(traceback.format_exc())
 
                h.flash(_('Error occurred during commit'), category='error')
 
            return redirect(url('changeset_home',
 
                                repo_name=c.repo_name, revision='tip'))
 

	
 
        return render('files/files_delete.html')
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.write', 'repository.admin')
 
    def edit(self, repo_name, revision, f_path):
 
        repo = c.db_repo
 
        if repo.enable_locking and repo.locked[0]:
 
            h.flash(_('This repository is has been locked by %s on %s')
 
                % (h.person_by_id(repo.locked[0]),
 
                   h.fmt_date(h.time_to_datetime(repo.locked[1]))),
 
                'warning')
 
            return redirect(h.url('files_home',
 
                                  repo_name=repo_name, revision='tip'))
 

	
 
        # check if revision is a branch identifier- basically we cannot
 
        # create multiple heads via file editing
 
        _branches = repo.scm_instance.branches
 
        # check if revision is a branch name or branch hash
 
        if revision not in _branches.keys() + _branches.values():
 
            h.flash(_('You can only edit files with revision '
 
                      'being a valid branch '), category='warning')
 
            return redirect(h.url('files_home',
 
                                  repo_name=repo_name, revision='tip',
 
                                  f_path=f_path))
 

	
 
        r_post = request.POST
 

	
 
        c.cs = self.__get_cs(revision)
 
        c.file = self.__get_filenode(c.cs, f_path)
 

	
 
        if c.file.is_binary:
 
            return redirect(url('files_home', repo_name=c.repo_name,
 
                            revision=c.cs.raw_id, f_path=f_path))
 
        c.default_message = _('Edited file %s via Kallithea') % (f_path)
 
        c.f_path = f_path
 

	
 
        if r_post:
 

	
 
            old_content = c.file.content
 
            sl = old_content.splitlines(1)
 
            first_line = sl[0] if sl else ''
 
            # modes:  0 - Unix, 1 - Mac, 2 - DOS
 
            mode = detect_mode(first_line, 0)
 
            content = convert_line_endings(r_post.get('content', ''), mode)
 

	
 
            message = r_post.get('message') or c.default_message
 
            author = self.authuser.full_contact
 

	
 
            if content == old_content:
 
                h.flash(_('No changes'), category='warning')
 
                return redirect(url('changeset_home', repo_name=c.repo_name,
 
                                    revision='tip'))
 
            try:
 
                self.scm_model.commit_change(repo=c.db_repo_scm_instance,
 
                                             repo_name=repo_name, cs=c.cs,
 
                                             user=self.authuser.user_id,
 
                                             author=author, message=message,
 
                                             content=content, f_path=f_path)
 
                h.flash(_('Successfully committed to %s') % f_path,
 
                        category='success')
 
            except Exception:
 
                log.error(traceback.format_exc())
 
                h.flash(_('Error occurred during commit'), category='error')
 
            return redirect(url('changeset_home',
 
                                repo_name=c.repo_name, revision='tip'))
 

	
 
        return render('files/files_edit.html')
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.write', 'repository.admin')
 
    def add(self, repo_name, revision, f_path):
 

	
 
        repo = Repository.get_by_repo_name(repo_name)
 
        if repo.enable_locking and repo.locked[0]:
 
            h.flash(_('This repository is has been locked by %s on %s')
 
                % (h.person_by_id(repo.locked[0]),
 
                   h.fmt_date(h.time_to_datetime(repo.locked[1]))),
 
                  'warning')
 
            return redirect(h.url('files_home',
 
                                  repo_name=repo_name, revision='tip'))
 

	
 
        r_post = request.POST
 
        c.cs = self.__get_cs(revision, silent_empty=True)
 
        if c.cs is None:
 
            c.cs = EmptyChangeset(alias=c.db_repo_scm_instance.alias)
 
        c.default_message = (_('Added file via Kallithea'))
 
        c.f_path = f_path
 

	
 
        if r_post:
 
            unix_mode = 0
 
            content = convert_line_endings(r_post.get('content', ''), unix_mode)
 

	
 
            message = r_post.get('message') or c.default_message
 
            filename = r_post.get('filename')
 
            location = r_post.get('location', '')
 
            file_obj = r_post.get('upload_file', None)
 

	
 
            if file_obj is not None and hasattr(file_obj, 'filename'):
 
                filename = file_obj.filename
 
                content = file_obj.file
 

	
 
                if hasattr(content, 'file'):
 
                    # non posix systems store real file under file attr
 
                    content = content.file
 

	
 
            if not content:
 
                h.flash(_('No content'), category='warning')
 
                return redirect(url('changeset_home', repo_name=c.repo_name,
 
                                    revision='tip'))
 
            if not filename:
 
                h.flash(_('No filename'), category='warning')
 
                return redirect(url('changeset_home', repo_name=c.repo_name,
 
                                    revision='tip'))
 
            #strip all crap out of file, just leave the basename
 
            filename = os.path.basename(filename)
 
            node_path = os.path.join(location, filename)
 
            author = self.authuser.full_contact
 

	
 
            try:
 
                nodes = {
 
                    node_path: {
 
                        'content': content
 
                    }
 
                }
 
                self.scm_model.create_nodes(
 
                    user=c.authuser.user_id, repo=c.db_repo,
 
                    message=message,
 
                    nodes=nodes,
 
                    parent_cs=c.cs,
 
                    author=author,
 
                )
 

	
 
                h.flash(_('Successfully committed to %s') % node_path,
 
                        category='success')
 
            except NonRelativePathError, e:
 
                h.flash(_('Location must be relative path and must not '
 
                          'contain .. in path'), category='warning')
 
                return redirect(url('changeset_home', repo_name=c.repo_name,
 
                                    revision='tip'))
 
            except (NodeError, NodeAlreadyExistsError), e:
 
                h.flash(_(e), category='error')
 
            except Exception:
 
                log.error(traceback.format_exc())
 
                h.flash(_('Error occurred during commit'), category='error')
 
            return redirect(url('changeset_home',
 
                                repo_name=c.repo_name, revision='tip'))
 

	
 
        return render('files/files_add.html')
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    def archivefile(self, repo_name, fname):
 

	
 
        fileformat = None
 
        revision = None
 
        ext = None
 
        subrepos = request.GET.get('subrepos') == 'true'
 

	
 
        for a_type, ext_data in settings.ARCHIVE_SPECS.items():
 
            archive_spec = fname.split(ext_data[1])
 
            if len(archive_spec) == 2 and archive_spec[1] == '':
 
                fileformat = a_type or ext_data[1]
 
                revision = archive_spec[0]
 
                ext = ext_data[1]
 

	
 
        try:
 
            dbrepo = RepoModel().get_by_repo_name(repo_name)
 
            if not dbrepo.enable_downloads:
 
                return _('Downloads disabled')
 

	
 
            if c.db_repo_scm_instance.alias == 'hg':
 
                # patch and reset hooks section of UI config to not run any
 
                # hooks on fetching archives with subrepos
 
                for k, v in c.db_repo_scm_instance._repo.ui.configitems('hooks'):
 
                    c.db_repo_scm_instance._repo.ui.setconfig('hooks', k, None)
 

	
 
            cs = c.db_repo_scm_instance.get_changeset(revision)
 
            content_type = settings.ARCHIVE_SPECS[fileformat][0]
 
        except ChangesetDoesNotExistError:
 
            return _('Unknown revision %s') % revision
 
        except EmptyRepositoryError:
 
            return _('Empty repository')
 
        except (ImproperArchiveTypeError, KeyError):
 
            return _('Unknown archive type')
 
        # archive cache
 
        from kallithea import CONFIG
 
        rev_name = cs.raw_id[:12]
 
        archive_name = '%s-%s%s' % (safe_str(repo_name.replace('/', '_')),
 
                                    safe_str(rev_name), ext)
 

	
 
        use_cached_archive = False  # defines if we use cached version of archive
 
        archive_cache_enabled = CONFIG.get('archive_cache_dir')
 
        if not subrepos and archive_cache_enabled:
 
            #check if we it's ok to write
 
            if not os.path.isdir(CONFIG['archive_cache_dir']):
 
                os.makedirs(CONFIG['archive_cache_dir'])
 
            cached_archive_path = os.path.join(CONFIG['archive_cache_dir'], archive_name)
 
            if os.path.isfile(cached_archive_path):
 
                log.debug('Found cached archive in %s' % cached_archive_path)
 
                fd, archive = None, cached_archive_path
 
                use_cached_archive = True
 
            else:
 
                log.debug('Archive %s is not yet cached' % (archive_name))
 

	
 
        if not use_cached_archive:
 
            # generate new archive
 
            temp_stream = None
 
            try:
 
                fd, archive = tempfile.mkstemp()
 
                temp_stream = open(archive, 'wb')
 
                log.debug('Creating new temp archive in %s' % archive)
 
                cs.fill_archive(stream=temp_stream, kind=fileformat, subrepos=subrepos)
 
                if not subrepos and archive_cache_enabled:
 
                    #if we generated the archive and use cache rename that
 
                    log.debug('Storing new archive in %s' % cached_archive_path)
 
                    shutil.move(archive, cached_archive_path)
 
                    archive = cached_archive_path
 
            finally:
 
                if temp_stream:
 
                    temp_stream.close()
 

	
 
        def get_chunked_archive(archive):
 
            stream = open(archive, 'rb')
 
            while True:
 
                data = stream.read(16 * 1024)
 
                if not data:
 
                    stream.close()
 
                    if fd:  # fd means we used temporary file
 
                        os.close(fd)
 
                    if not archive_cache_enabled:
 
                        log.debug('Destroing temp archive %s' % archive)
 
                        os.remove(archive)
 
                    break
 
                yield data
 
        # store download action
 
        action_logger(user=c.authuser,
 
                      action='user_downloaded_archive:%s' % (archive_name),
 
                      repo=repo_name, ipaddr=self.ip_addr, commit=True)
 
        response.content_disposition = str('attachment; filename=%s' % (archive_name))
 
        response.content_type = str(content_type)
 
        return get_chunked_archive(archive)
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    def diff(self, repo_name, f_path):
 
        ignore_whitespace = request.GET.get('ignorews') == '1'
 
        line_context = request.GET.get('context', 3)
 
        diff1 = request.GET.get('diff1', '')
 
        diff2 = request.GET.get('diff2', '')
 
        c.action = request.GET.get('diff')
 
        c.no_changes = diff1 == diff2
 
        c.f_path = f_path
 
        c.big_diff = False
 
        c.anchor_url = anchor_url
 
        c.ignorews_url = _ignorews_url
 
        c.context_url = _context_url
 
        c.changes = OrderedDict()
 
        c.changes[diff2] = []
 

	
 
        #special case if we want a show rev only, it's impl here
 
        #to reduce JS and callbacks
 

	
 
        if request.GET.get('show_rev'):
 
            if str2bool(request.GET.get('annotate', 'False')):
 
                _url = url('files_annotate_home', repo_name=c.repo_name,
 
                           revision=diff1, f_path=c.f_path)
 
            else:
 
                _url = url('files_home', repo_name=c.repo_name,
 
                           revision=diff1, f_path=c.f_path)
 

	
 
            return redirect(_url)
 
        try:
 
            if diff1 not in ['', None, 'None', '0' * 12, '0' * 40]:
 
                c.changeset_1 = c.db_repo_scm_instance.get_changeset(diff1)
 
                try:
 
                    node1 = c.changeset_1.get_node(f_path)
 
                    if node1.is_dir():
 
                        raise NodeError('%s path is a %s not a file'
 
                                        % (node1, type(node1)))
 
                except NodeDoesNotExistError:
 
                    c.changeset_1 = EmptyChangeset(cs=diff1,
 
                                                   revision=c.changeset_1.revision,
 
                                                   repo=c.db_repo_scm_instance)
 
                    node1 = FileNode(f_path, '', changeset=c.changeset_1)
 
            else:
 
                c.changeset_1 = EmptyChangeset(repo=c.db_repo_scm_instance)
 
                node1 = FileNode(f_path, '', changeset=c.changeset_1)
 

	
 
            if diff2 not in ['', None, 'None', '0' * 12, '0' * 40]:
 
                c.changeset_2 = c.db_repo_scm_instance.get_changeset(diff2)
 
                try:
 
                    node2 = c.changeset_2.get_node(f_path)
 
                    if node2.is_dir():
 
                        raise NodeError('%s path is a %s not a file'
 
                                        % (node2, type(node2)))
 
                except NodeDoesNotExistError:
 
                    c.changeset_2 = EmptyChangeset(cs=diff2,
 
                                                   revision=c.changeset_2.revision,
 
                                                   repo=c.db_repo_scm_instance)
 
                    node2 = FileNode(f_path, '', changeset=c.changeset_2)
 
            else:
 
                c.changeset_2 = EmptyChangeset(repo=c.db_repo_scm_instance)
 
                node2 = FileNode(f_path, '', changeset=c.changeset_2)
 
        except (RepositoryError, NodeError):
 
            log.error(traceback.format_exc())
 
            return redirect(url('files_home', repo_name=c.repo_name,
 
                                f_path=f_path))
 

	
 
        if c.action == 'download':
 
            _diff = diffs.get_gitdiff(node1, node2,
 
                                      ignore_whitespace=ignore_whitespace,
 
                                      context=line_context)
 
            diff = diffs.DiffProcessor(_diff, format='gitdiff')
 

	
 
            diff_name = '%s_vs_%s.diff' % (diff1, diff2)
 
            response.content_type = 'text/plain'
 
            response.content_disposition = (
 
                'attachment; filename=%s' % diff_name
 
            )
 
            return diff.as_raw()
 

	
 
        elif c.action == 'raw':
 
            _diff = diffs.get_gitdiff(node1, node2,
 
                                      ignore_whitespace=ignore_whitespace,
 
                                      context=line_context)
 
            diff = diffs.DiffProcessor(_diff, format='gitdiff')
 
            response.content_type = 'text/plain'
 
            return diff.as_raw()
 

	
 
        else:
 
            fid = h.FID(diff2, node2.path)
 
            line_context_lcl = get_line_ctx(fid, request.GET)
 
            ign_whitespace_lcl = get_ignore_ws(fid, request.GET)
 

	
 
            lim = request.GET.get('fulldiff') or self.cut_off_limit
 
            _, cs1, cs2, diff, st = diffs.wrapped_diff(filenode_old=node1,
 
                                         filenode_new=node2,
 
                                         cut_off_limit=lim,
 
                                         ignore_whitespace=ign_whitespace_lcl,
 
                                         line_context=line_context_lcl,
 
                                         enable_comments=False)
 
            op = ''
 
            filename = node1.path
 
            cs_changes = {
 
                'fid': [cs1, cs2, op, filename, diff, st]
 
            }
 
            c.changes = cs_changes
 

	
 
        return render('files/file_diff.html')
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    def diff_2way(self, repo_name, f_path):
 
        diff1 = request.GET.get('diff1', '')
 
        diff2 = request.GET.get('diff2', '')
 
        try:
 
            if diff1 not in ['', None, 'None', '0' * 12, '0' * 40]:
 
                c.changeset_1 = c.db_repo_scm_instance.get_changeset(diff1)
 
                try:
 
                    node1 = c.changeset_1.get_node(f_path)
 
                    if node1.is_dir():
 
                        raise NodeError('%s path is a %s not a file'
 
                                        % (node1, type(node1)))
 
                except NodeDoesNotExistError:
 
                    c.changeset_1 = EmptyChangeset(cs=diff1,
 
                                                   revision=c.changeset_1.revision,
 
                                                   repo=c.db_repo_scm_instance)
 
                    node1 = FileNode(f_path, '', changeset=c.changeset_1)
 
            else:
 
                c.changeset_1 = EmptyChangeset(repo=c.db_repo_scm_instance)
 
                node1 = FileNode(f_path, '', changeset=c.changeset_1)
 

	
 
            if diff2 not in ['', None, 'None', '0' * 12, '0' * 40]:
 
                c.changeset_2 = c.db_repo_scm_instance.get_changeset(diff2)
 
                try:
 
                    node2 = c.changeset_2.get_node(f_path)
 
                    if node2.is_dir():
 
                        raise NodeError('%s path is a %s not a file'
 
                                        % (node2, type(node2)))
 
                except NodeDoesNotExistError:
 
                    c.changeset_2 = EmptyChangeset(cs=diff2,
 
                                                   revision=c.changeset_2.revision,
 
                                                   repo=c.db_repo_scm_instance)
 
                    node2 = FileNode(f_path, '', changeset=c.changeset_2)
 
            else:
 
                c.changeset_2 = EmptyChangeset(repo=c.db_repo_scm_instance)
 
                node2 = FileNode(f_path, '', changeset=c.changeset_2)
 
        except ChangesetDoesNotExistError as e:
 
            msg = _('Such revision does not exist for this repository')
 
            h.flash(msg, category='error')
 
            raise HTTPNotFound()
 
        c.node1 = node1
 
        c.node2 = node2
 
        c.cs1 = c.changeset_1
 
        c.cs2 = c.changeset_2
 

	
 
        return render('files/diff_2way.html')
 

	
 
    def _get_node_history(self, cs, f_path, changesets=None):
 
        """
 
        get changesets history for given node
 

	
 
        :param cs: changeset to calculate history
 
        :param f_path: path for node to calculate history for
 
        :param changesets: if passed don't calculate history and take
 
            changesets defined in this list
 
        """
 
        # calculate history based on tip
 
        tip_cs = c.db_repo_scm_instance.get_changeset()
 
        if changesets is None:
 
            try:
 
                changesets = tip_cs.get_file_history(f_path)
 
            except (NodeDoesNotExistError, ChangesetError):
 
                #this node is not present at tip !
 
                changesets = cs.get_file_history(f_path)
 
        hist_l = []
 

	
 
        changesets_group = ([], _("Changesets"))
 
        branches_group = ([], _("Branches"))
 
        tags_group = ([], _("Tags"))
 
        for chs in changesets:
 
            #_branch = '(%s)' % chs.branch if (cs.repository.alias == 'hg') else ''
 
            _branch = chs.branch
 
            n_desc = '%s (%s)' % (h.show_id(chs), _branch)
 
            changesets_group[0].append((chs.raw_id, n_desc,))
 
        hist_l.append(changesets_group)
 

	
 
        for name, chs in c.db_repo_scm_instance.branches.items():
 
            branches_group[0].append((chs, name),)
 
        hist_l.append(branches_group)
 

	
 
        for name, chs in c.db_repo_scm_instance.tags.items():
 
            tags_group[0].append((chs, name),)
 
        hist_l.append(tags_group)
 

	
 
        return hist_l, changesets
 

	
 
    @LoginRequired()
 
    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
 
                                   'repository.admin')
 
    @jsonify
 
    def nodelist(self, repo_name, revision, f_path):
 
        if request.environ.get('HTTP_X_PARTIAL_XHR'):
 
            cs = self.__get_cs(revision)
 
            _d, _f = ScmModel().get_nodes(repo_name, cs.raw_id, f_path,
 
                                          flat=False)
 
            return {'nodes': _d + _f}
kallithea/lib/vcs/backends/hg/repository.py
Show inline comments
 
# -*- coding: utf-8 -*-
 
"""
 
    vcs.backends.hg.repository
 
    ~~~~~~~~~~~~~~~~~~~~~~~~~~
 

	
 
    Mercurial repository implementation.
 

	
 
    :created_on: Apr 8, 2010
 
    :copyright: (c) 2010-2011 by Marcin Kuzminski, Lukasz Balcerzak.
 
"""
 

	
 
import os
 
import time
 
import urllib
 
import urllib2
 
import logging
 
import datetime
 

	
 
from kallithea.lib.vcs.backends.base import BaseRepository, CollectionGenerator
 

	
 
from kallithea.lib.vcs.exceptions import (
 
    BranchDoesNotExistError, ChangesetDoesNotExistError, EmptyRepositoryError,
 
    RepositoryError, VCSError, TagAlreadyExistError, TagDoesNotExistError
 
)
 
from kallithea.lib.vcs.utils import (
 
    author_email, author_name, date_fromtimestamp, makedate, safe_unicode, safe_str,
 
)
 
from kallithea.lib.vcs.utils.lazy import LazyProperty
 
from kallithea.lib.vcs.utils.ordered_dict import OrderedDict
 
from kallithea.lib.vcs.utils.paths import abspath
 
from kallithea.lib.vcs.utils.hgcompat import (
 
    ui, nullid, match, patch, diffopts, clone, get_contact, pull,
 
    localrepository, RepoLookupError, Abort, RepoError, hex, scmutil, hg_url,
 
    httpbasicauthhandler, httpdigestauthhandler, peer, httppeer
 
)
 

	
 
from .changeset import MercurialChangeset
 
from .inmemory import MercurialInMemoryChangeset
 
from .workdir import MercurialWorkdir
 

	
 
log = logging.getLogger(__name__)
 

	
 

	
 
class MercurialRepository(BaseRepository):
 
    """
 
    Mercurial repository backend
 
    """
 
    DEFAULT_BRANCH_NAME = 'default'
 
    scm = 'hg'
 

	
 
    def __init__(self, repo_path, create=False, baseui=None, src_url=None,
 
                 update_after_clone=False):
 
        """
 
        Raises RepositoryError if repository could not be find at the given
 
        ``repo_path``.
 

	
 
        :param repo_path: local path of the repository
 
        :param create=False: if set to True, would try to create repository if
 
           it does not exist rather than raising exception
 
        :param baseui=None: user data
 
        :param src_url=None: would try to clone repository from given location
 
        :param update_after_clone=False: sets update of working copy after
 
          making a clone
 
        """
 

	
 
        if not isinstance(repo_path, str):
 
            raise VCSError('Mercurial backend requires repository path to '
 
                           'be instance of <str> got %s instead' %
 
                           type(repo_path))
 

	
 
        self.path = abspath(repo_path)
 
        self.baseui = baseui or ui.ui()
 
        # We've set path and ui, now we can set _repo itself
 
        self._repo = self._get_repo(create, src_url, update_after_clone)
 

	
 
    @property
 
    def _empty(self):
 
        """
 
        Checks if repository is empty ie. without any changesets
 
        """
 
        # TODO: Following raises errors when using InMemoryChangeset...
 
        # return len(self._repo.changelog) == 0
 
        return len(self.revisions) == 0
 

	
 
    @LazyProperty
 
    def revisions(self):
 
        """
 
        Returns list of revisions' ids, in ascending order.  Being lazy
 
        attribute allows external tools to inject shas from cache.
 
        """
 
        return self._get_all_revisions()
 

	
 
    @LazyProperty
 
    def name(self):
 
        return os.path.basename(self.path)
 

	
 
    @LazyProperty
 
    def branches(self):
 
        return self._get_branches()
 

	
 
    @LazyProperty
 
    def closed_branches(self):
 
        return self._get_branches(normal=False, closed=True)
 

	
 
    @LazyProperty
 
    def allbranches(self):
 
        """
 
        List all branches, including closed branches.
 
        """
 
        return self._get_branches(closed=True)
 

	
 
    def _get_branches(self, normal=True, closed=False):
 
        """
 
        Gets branches for this repository
 
        Returns only not closed branches by default
 

	
 
        :param closed: return also closed branches for mercurial
 
        :param normal: return also normal branches
 
        """
 

	
 
        if self._empty:
 
            return {}
 

	
 
        def _branchtags(localrepo):
 
            """
 
            Patched version of mercurial branchtags to not return the closed
 
            branches
 

	
 
            :param localrepo: locarepository instance
 
            """
 

	
 
            bt = {}
 
            bt_closed = {}
 
            for bn, heads in localrepo.branchmap().iteritems():
 
                tip = heads[-1]
 
                if 'close' in localrepo.changelog.read(tip)[5]:
 
                    bt_closed[bn] = tip
 
                else:
 
                    bt[bn] = tip
 

	
 
            if not normal:
 
                return bt_closed
 
            if closed:
 
                bt.update(bt_closed)
 
            return bt
 

	
 
        sortkey = lambda ctx: ctx[0]  # sort by name
 
        _branches = [(safe_unicode(n), hex(h),) for n, h in
 
                     _branchtags(self._repo).items()]
 

	
 
        return OrderedDict(sorted(_branches, key=sortkey, reverse=False))
 

	
 
    @LazyProperty
 
    def tags(self):
 
        """
 
        Gets tags for this repository
 
        """
 
        return self._get_tags()
 

	
 
    def _get_tags(self):
 
        if self._empty:
 
            return {}
 

	
 
        sortkey = lambda ctx: ctx[0]  # sort by name
 
        _tags = [(safe_unicode(n), hex(h),) for n, h in
 
                 self._repo.tags().items()]
 

	
 
        return OrderedDict(sorted(_tags, key=sortkey, reverse=True))
 

	
 
    def tag(self, name, user, revision=None, message=None, date=None,
 
            **kwargs):
 
        """
 
        Creates and returns a tag for the given ``revision``.
 

	
 
        :param name: name for new tag
 
        :param user: full username, i.e.: "Joe Doe <joe.doe@example.com>"
 
        :param revision: changeset id for which new tag would be created
 
        :param message: message of the tag's commit
 
        :param date: date of tag's commit
 

	
 
        :raises TagAlreadyExistError: if tag with same name already exists
 
        """
 
        if name in self.tags:
 
            raise TagAlreadyExistError("Tag %s already exists" % name)
 
        changeset = self.get_changeset(revision)
 
        local = kwargs.setdefault('local', False)
 

	
 
        if message is None:
 
            message = "Added tag %s for changeset %s" % (name,
 
                changeset.short_id)
 

	
 
        if date is None:
 
            date = datetime.datetime.now().ctime()
 

	
 
        try:
 
            self._repo.tag(name, changeset._ctx.node(), message, local, user,
 
                date)
 
        except Abort, e:
 
            raise RepositoryError(e.message)
 

	
 
        # Reinitialize tags
 
        self.tags = self._get_tags()
 
        tag_id = self.tags[name]
 

	
 
        return self.get_changeset(revision=tag_id)
 

	
 
    def remove_tag(self, name, user, message=None, date=None):
 
        """
 
        Removes tag with the given ``name``.
 

	
 
        :param name: name of the tag to be removed
 
        :param user: full username, i.e.: "Joe Doe <joe.doe@example.com>"
 
        :param message: message of the tag's removal commit
 
        :param date: date of tag's removal commit
 

	
 
        :raises TagDoesNotExistError: if tag with given name does not exists
 
        """
 
        if name not in self.tags:
 
            raise TagDoesNotExistError("Tag %s does not exist" % name)
 
        if message is None:
 
            message = "Removed tag %s" % name
 
        if date is None:
 
            date = datetime.datetime.now().ctime()
 
        local = False
 

	
 
        try:
 
            self._repo.tag(name, nullid, message, local, user, date)
 
            self.tags = self._get_tags()
 
        except Abort, e:
 
            raise RepositoryError(e.message)
 

	
 
    @LazyProperty
 
    def bookmarks(self):
 
        """
 
        Gets bookmarks for this repository
 
        """
 
        return self._get_bookmarks()
 

	
 
    def _get_bookmarks(self):
 
        if self._empty:
 
            return {}
 

	
 
        sortkey = lambda ctx: ctx[0]  # sort by name
 
        _bookmarks = [(safe_unicode(n), hex(h),) for n, h in
 
                 self._repo._bookmarks.items()]
 
        return OrderedDict(sorted(_bookmarks, key=sortkey, reverse=True))
 

	
 
    def _get_all_revisions(self):
 

	
 
        return map(lambda x: hex(x[7]), self._repo.changelog.index)[:-1]
 

	
 
    def get_diff(self, rev1, rev2, path='', ignore_whitespace=False,
 
                  context=3):
 
        """
 
        Returns (git like) *diff*, as plain text. Shows changes introduced by
 
        ``rev2`` since ``rev1``.
 

	
 
        :param rev1: Entry point from which diff is shown. Can be
 
          ``self.EMPTY_CHANGESET`` - in this case, patch showing all
 
          the changes since empty state of the repository until ``rev2``
 
        :param rev2: Until which revision changes should be shown.
 
        :param ignore_whitespace: If set to ``True``, would not show whitespace
 
          changes. Defaults to ``False``.
 
        :param context: How many lines before/after changed lines should be
 
          shown. Defaults to ``3``.
 
        """
 
        if hasattr(rev1, 'raw_id'):
 
            rev1 = getattr(rev1, 'raw_id')
 

	
 
        if hasattr(rev2, 'raw_id'):
 
            rev2 = getattr(rev2, 'raw_id')
 

	
 
        # Check if given revisions are present at repository (may raise
 
        # ChangesetDoesNotExistError)
 
        if rev1 != self.EMPTY_CHANGESET:
 
            self.get_changeset(rev1)
 
        self.get_changeset(rev2)
 
        if path:
 
            file_filter = match(self.path, '', [path])
 
        else:
 
            file_filter = None
 

	
 
        return ''.join(patch.diff(self._repo, rev1, rev2, match=file_filter,
 
                          opts=diffopts(git=True,
 
                                        ignorews=ignore_whitespace,
 
                                        context=context)))
 

	
 
    @classmethod
 
    def _check_url(cls, url, repoui=None):
 
        """
 
        Function will check given url and try to verify if it's a valid
 
        link. Sometimes it may happened that mercurial will issue basic
 
        auth request that can cause whole API to hang when used from python
 
        or other external calls.
 

	
 
        On failures it'll raise urllib2.HTTPError, exception is also thrown
 
        when the return code is non 200
 
        """
 
        # check first if it's not an local url
 
        if os.path.isdir(url) or url.startswith('file:'):
 
            return True
 

	
 
        if '+' in url[:url.find('://')]:
 
            url = url[url.find('+') + 1:]
 

	
 
        handlers = []
 
        url_obj = hg_url(url)
 
        test_uri, authinfo = url_obj.authinfo()
 
        url_obj.passwd = '*****'
 
        cleaned_uri = str(url_obj)
 

	
 
        if authinfo:
 
            #create a password manager
 
            passmgr = urllib2.HTTPPasswordMgrWithDefaultRealm()
 
            passmgr.add_password(*authinfo)
 

	
 
            handlers.extend((httpbasicauthhandler(passmgr),
 
                             httpdigestauthhandler(passmgr)))
 

	
 
        o = urllib2.build_opener(*handlers)
 
        o.addheaders = [('Content-Type', 'application/mercurial-0.1'),
 
                        ('Accept', 'application/mercurial-0.1')]
 

	
 
        q = {"cmd": 'between'}
 
        q.update({'pairs': "%s-%s" % ('0' * 40, '0' * 40)})
 
        qs = '?%s' % urllib.urlencode(q)
 
        cu = "%s%s" % (test_uri, qs)
 
        req = urllib2.Request(cu, None, {})
 

	
 
        try:
 
            resp = o.open(req)
 
            if resp.code != 200:
 
                raise Exception('Return Code is not 200')
 
        except Exception, e:
 
            # means it cannot be cloned
 
            raise urllib2.URLError("[%s] org_exc: %s" % (cleaned_uri, e))
 

	
 
        # now check if it's a proper hg repo
 
        try:
 
            httppeer(repoui or ui.ui(), url).lookup('tip')
 
        except Exception, e:
 
            raise urllib2.URLError(
 
                "url [%s] does not look like an hg repo org_exc: %s"
 
                % (cleaned_uri, e))
 

	
 
        return True
 

	
 
    def _get_repo(self, create, src_url=None, update_after_clone=False):
 
        """
 
        Function will check for mercurial repository in given path and return
 
        a localrepo object. If there is no repository in that path it will
 
        raise an exception unless ``create`` parameter is set to True - in
 
        that case repository would be created and returned.
 
        If ``src_url`` is given, would try to clone repository from the
 
        location at given clone_point. Additionally it'll make update to
 
        working copy accordingly to ``update_after_clone`` flag
 
        """
 

	
 
        try:
 
            if src_url:
 
                url = str(self._get_url(src_url))
 
                opts = {}
 
                if not update_after_clone:
 
                    opts.update({'noupdate': True})
 
                try:
 
                    MercurialRepository._check_url(url, self.baseui)
 
                    clone(self.baseui, url, self.path, **opts)
 
#                except urllib2.URLError:
 
#                    raise Abort("Got HTTP 404 error")
 
                except Exception:
 
                    raise
 

	
 
                # Don't try to create if we've already cloned repo
 
                create = False
 
            return localrepository(self.baseui, self.path, create=create)
 
        except (Abort, RepoError), err:
 
            if create:
 
                msg = "Cannot create repository at %s. Original error was %s"\
 
                    % (self.path, err)
 
            else:
 
                msg = "Not valid repository at %s. Original error was %s"\
 
                    % (self.path, err)
 
            raise RepositoryError(msg)
 

	
 
    @LazyProperty
 
    def in_memory_changeset(self):
 
        return MercurialInMemoryChangeset(self)
 

	
 
    @LazyProperty
 
    def description(self):
 
        undefined_description = u'unknown'
 
        _desc = self._repo.ui.config('web', 'description', None, untrusted=True)
 
        return safe_unicode(_desc or undefined_description)
 

	
 
    @LazyProperty
 
    def contact(self):
 
        undefined_contact = u'Unknown'
 
        return safe_unicode(get_contact(self._repo.ui.config)
 
                            or undefined_contact)
 

	
 
    @LazyProperty
 
    def last_change(self):
 
        """
 
        Returns last change made on this repository as datetime object
 
        """
 
        return date_fromtimestamp(self._get_mtime(), makedate()[1])
 

	
 
    def _get_mtime(self):
 
        try:
 
            return time.mktime(self.get_changeset().date.timetuple())
 
        except RepositoryError:
 
            #fallback to filesystem
 
            cl_path = os.path.join(self.path, '.hg', "00changelog.i")
 
            st_path = os.path.join(self.path, '.hg', "store")
 
            if os.path.exists(cl_path):
 
                return os.stat(cl_path).st_mtime
 
            else:
 
                return os.stat(st_path).st_mtime
 

	
 
    def _get_hidden(self):
 
        return self._repo.ui.configbool("web", "hidden", untrusted=True)
 

	
 
    def _get_revision(self, revision):
 
        """
 
        Gets an ID revision given as str. This will always return a fill
 
        40 char revision number
 

	
 
        :param revision: str or int or None
 
        """
 
        if isinstance(revision, unicode):
 
            revision = safe_str(revision)
 

	
 
        if self._empty:
 
            raise EmptyRepositoryError("There are no changesets yet")
 

	
 
        if revision in [-1, 'tip', None]:
 
            revision = 'tip'
 

	
 
        try:
 
            revision = hex(self._repo.lookup(revision))
 
        except (LookupError, ):
 
            msg = ("Ambiguous identifier `%s` for %s" % (revision, self))
 
            raise ChangesetDoesNotExistError(msg)
 
        except (IndexError, ValueError, RepoLookupError, TypeError):
 
            msg = ("Revision %s does not exist for %s" % (revision, self))
 
            raise ChangesetDoesNotExistError(msg)
 

	
 
        return revision
 

	
 
    def get_ref_revision(self, ref_type, ref_name):
 
        """
 
        Returns revision number for the given reference.
 
        """
 
        ref_name = safe_str(ref_name)
 
        # lookup up the exact node id
 
        _revset_predicates = {
 
                'branch': 'branch',
 
                'book': 'bookmark',
 
                'tag': 'tag',
 
                'rev': 'id',
 
            }
 
        # avoid expensive branch(x) iteration over whole repo
 
        rev_spec = "%%s & %s(%%s)" % _revset_predicates[ref_type]
 
        try:
 
            revs = self._repo.revs(rev_spec, ref_name, ref_name)
 
        except (LookupError, ):
 
        except LookupError:
 
            msg = ("Ambiguous identifier %s:%s for %s" % (ref_type, ref_name, self.name))
 
            raise ChangesetDoesNotExistError(msg)
 
        except (IndexError, ValueError, RepoLookupError, TypeError):
 
        except RepoLookupError:
 
            msg = ("Revision %s:%s does not exist for %s" % (ref_type, ref_name, self.name))
 
            raise ChangesetDoesNotExistError(msg)
 
        if revs:
 
            revision = revs[-1]
 
        else:
 
            # TODO: just report 'not found'?
 
            revision = ref_name
 

	
 
        return self._get_revision(revision)
 

	
 
    def _get_archives(self, archive_name='tip'):
 
        allowed = self.baseui.configlist("web", "allow_archive",
 
                                         untrusted=True)
 
        for i in [('zip', '.zip'), ('gz', '.tar.gz'), ('bz2', '.tar.bz2')]:
 
            if i[0] in allowed or self._repo.ui.configbool("web",
 
                                                           "allow" + i[0],
 
                                                           untrusted=True):
 
                yield {"type": i[0], "extension": i[1], "node": archive_name}
 

	
 
    def _get_url(self, url):
 
        """
 
        Returns normalized url. If schema is not given, would fall
 
        to filesystem
 
        (``file:///``) schema.
 
        """
 
        url = str(url)
 
        if url != 'default' and not '://' in url:
 
            url = "file:" + urllib.pathname2url(url)
 
        return url
 

	
 
    def get_hook_location(self):
 
        """
 
        returns absolute path to location where hooks are stored
 
        """
 
        return os.path.join(self.path, '.hg', '.hgrc')
 

	
 
    def get_changeset(self, revision=None):
 
        """
 
        Returns ``MercurialChangeset`` object representing repository's
 
        changeset at the given ``revision``.
 
        """
 
        revision = self._get_revision(revision)
 
        changeset = MercurialChangeset(repository=self, revision=revision)
 
        return changeset
 

	
 
    def get_changesets(self, start=None, end=None, start_date=None,
 
                       end_date=None, branch_name=None, reverse=False):
 
        """
 
        Returns iterator of ``MercurialChangeset`` objects from start to end
 
        (both are inclusive)
 

	
 
        :param start: None, str, int or mercurial lookup format
 
        :param end:  None, str, int or mercurial lookup format
 
        :param start_date:
 
        :param end_date:
 
        :param branch_name:
 
        :param reversed: return changesets in reversed order
 
        """
 

	
 
        start_raw_id = self._get_revision(start)
 
        start_pos = self.revisions.index(start_raw_id) if start else None
 
        end_raw_id = self._get_revision(end)
 
        end_pos = self.revisions.index(end_raw_id) if end else None
 

	
 
        if None not in [start, end] and start_pos > end_pos:
 
            raise RepositoryError("Start revision '%s' cannot be "
 
                                  "after end revision '%s'" % (start, end))
 

	
 
        if branch_name and branch_name not in self.allbranches.keys():
 
            msg = ("Branch %s not found in %s" % (branch_name, self))
 
            raise BranchDoesNotExistError(msg)
 
        if end_pos is not None:
 
            end_pos += 1
 
        #filter branches
 
        filter_ = []
 
        if branch_name:
 
            filter_.append('branch("%s")' % (branch_name))
 

	
 
        if start_date and not end_date:
 
            filter_.append('date(">%s")' % start_date)
 
        if end_date and not start_date:
 
            filter_.append('date("<%s")' % end_date)
 
        if start_date and end_date:
 
            filter_.append('date(">%s") and date("<%s")' % (start_date, end_date))
 
        if filter_:
 
            revisions = scmutil.revrange(self._repo, filter_)
 
        else:
 
            revisions = self.revisions
 

	
 
        revs = revisions[start_pos:end_pos]
 
        if reverse:
 
            revs = reversed(revs)
 

	
 
        return CollectionGenerator(self, revs)
 

	
 
    def pull(self, url):
 
        """
 
        Tries to pull changes from external location.
 
        """
 
        url = self._get_url(url)
 
        try:
 
            other = peer(self._repo, {}, url)
 
            self._repo.pull(other, heads=None, force=None)
 
        except Abort, err:
 
            # Propagate error but with vcs's type
 
            raise RepositoryError(str(err))
 

	
 
    @LazyProperty
 
    def workdir(self):
 
        """
 
        Returns ``Workdir`` instance for this repository.
 
        """
 
        return MercurialWorkdir(self)
 

	
 
    def get_config_value(self, section, name=None, config_file=None):
 
        """
 
        Returns configuration value for a given [``section``] and ``name``.
 

	
 
        :param section: Section we want to retrieve value from
 
        :param name: Name of configuration we want to retrieve
 
        :param config_file: A path to file which should be used to retrieve
 
          configuration from (might also be a list of file paths)
 
        """
 
        if config_file is None:
 
            config_file = []
 
        elif isinstance(config_file, basestring):
 
            config_file = [config_file]
 

	
 
        config = self._repo.ui
 
        for path in config_file:
 
            config.readconfig(path)
 
        return config.config(section, name)
 

	
 
    def get_user_name(self, config_file=None):
 
        """
 
        Returns user's name from global configuration file.
 

	
 
        :param config_file: A path to file which should be used to retrieve
 
          configuration from (might also be a list of file paths)
 
        """
 
        username = self.get_config_value('ui', 'username')
 
        if username:
 
            return author_name(username)
 
        return None
 

	
 
    def get_user_email(self, config_file=None):
 
        """
 
        Returns user's email from global configuration file.
 

	
 
        :param config_file: A path to file which should be used to retrieve
 
          configuration from (might also be a list of file paths)
 
        """
 
        username = self.get_config_value('ui', 'username')
 
        if username:
 
            return author_email(username)
 
        return None
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