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# -*-python-*-
#
# Copyright (C) 1999-2002 The ViewCVS Group. All Rights Reserved.
#
# By using this file, you agree to the terms and conditions set forth in
# the LICENSE.html file which can be found at the top level of the ViewCVS
# distribution or at http://viewcvs.sourceforge.net/license-1.html.
#
# Contact information:
# Greg Stein, PO Box 760, Palo Alto, CA, 94302
# gstein@lyra.org, http://viewcvs.sourceforge.net/
#
# -----------------------------------------------------------------------
"Version Control lib driver for remotely accessible Subversion repositories."
# ======================================================================
import vclib
import sys
import os
import string
import re
import tempfile
import popen2
from vclib.svn import Revision
# Subversion swig libs
from svn import core, delta, client, wc
def _rev2optrev(rev):
rt = core.svn_opt_revision_t()
if rev is not None:
if str(rev) == 'HEAD':
rt.kind = core.svn_opt_revision_head
else:
rt.kind = core.svn_opt_revision_number
rt.value.number = rev
else:
rt.kind = core.svn_opt_revision_unspecified
return rt
def date_from_rev(svnrepos, rev):
### this is, obviously, wrong
return 0
def created_rev(svnrepos, full_name):
### this is, obviously, wrong
return 0
class ChangedPath:
def __init__(self, filename, pathtype, prop_mods, text_mods,
base_path, base_rev, action):
self.filename = filename
self.pathtype = pathtype
self.prop_mods = prop_mods
self.text_mods = text_mods
self.base_path = base_path
self.base_rev = base_rev
self.action = action
class LastHistoryCollector:
def __init__(self):
self.has_history = 0
def add_history(self, paths, revision, author, date, message, pool):
if not self.has_history:
self.has_history = 1
self.revision = revision
self.author = author
self.date = date
self.message = message
self.changes = []
if not paths:
return
changed_paths = paths.keys()
changed_paths.sort(lambda a, b: _compare_paths(a, b))
for changed_path in changed_paths:
change = paths[changed_path]
if change.action == 'D':
action = 'deleted'
elif change.action == 'A' or change.action == 'R':
if change.copyfrom_path and change.copyfrom_rev:
action = 'copied'
else:
action = 'added'
else:
action = 'modified'
### Wrong, diddily wrong wrong wrong. Can you say,
### "Manufacturing data left and right because it hurts to
### figure out the right stuff?"
self.changes.append(ChangedPath(changed_path, None, 0, 0,
changed_path, 0, action))
def get_history(self):
if not self.has_history:
return None, None, None, None, None
return self.revision, self.author, self.date, self.message, self.changes
def _get_rev_details(svnrepos, rev, pool):
lhc = LastHistoryCollector()
client.svn_client_log([svnrepos.rootpath],
_rev2optrev(rev), _rev2optrev(rev),
1, 0, lhc.add_history, svnrepos.ctx, pool)
return lhc.get_history()
def get_revision_info(svnrepos):
rev, author, date, log, changes = \
_get_rev_details(svnrepos, svnrepos.rev, svnrepos.pool)
return _datestr_to_date(date, svnrepos.pool), author, log, changes
def _datestr_to_date(datestr, pool):
if datestr is None:
return None
return core.svn_time_from_cstring(datestr, pool) / 1000000
def _compare_paths(path1, path2):
path1_len = len (path1);
path2_len = len (path2);
min_len = min(path1_len, path2_len)
i = 0
# Are the paths exactly the same?
if path1 == path2:
return 0
# Skip past common prefix
while (i < min_len) and (path1[i] == path2[i]):
i = i + 1
# Children of paths are greater than their parents, but less than
# greater siblings of their parents
char1 = '\0'
char2 = '\0'
if (i < path1_len):
char1 = path1[i]
if (i < path2_len):
char2 = path2[i]
if (char1 == '/') and (i == path2_len):
return 1
if (char2 == '/') and (i == path1_len):
return -1
if (i < path1_len) and (char1 == '/'):
return -1
if (i < path2_len) and (char2 == '/'):
return 1
# Common prefix was skipped above, next character is compared to
# determine order
return cmp(char1, char2)
class LogCollector:
def __init__(self, path, show_all_logs):
# This class uses leading slashes for paths internally
if not path:
self.path = '/'
else:
self.path = path[0] == '/' and path or '/' + path
self.logs = []
self.show_all_logs = show_all_logs
def add_log(self, paths, revision, author, date, message, pool):
# Changed paths have leading slashes
changed_paths = paths.keys()
changed_paths.sort(lambda a, b: _compare_paths(a, b))
this_path = None
if self.path in changed_paths:
this_path = self.path
change = paths[self.path]
if change.copyfrom_path:
this_path = change.copyfrom_path
else:
for changed_path in changed_paths:
# If a parent of our path was copied, our "next previous"
# (huh?) path will exist elsewhere (under the copy source).
if (string.rfind(self.path, changed_path) == 0) and \
self.path[len(changed_path)] == '/':
change = paths[changed_path]
if change.copyfrom_path:
this_path = change.copyfrom_path + self.path[len(changed_path):]
if self.show_all_logs or this_path:
date = _datestr_to_date(date, pool)
entry = Revision(revision, date, author, message, None,
self.path[1:], None, None)
self.logs.append(entry)
if this_path:
self.path = this_path
def get_logs(svnrepos, full_name, files):
parts = filter(None, string.split(full_name, '/'))
dirents = svnrepos.get_dirents(parts, svnrepos.rev)
subpool = core.svn_pool_create(svnrepos.pool)
rev_info_cache = { }
for file in files:
core.svn_pool_clear(subpool)
entry = dirents[file.name]
if rev_info_cache.has_key(entry.created_rev):
rev, author, date, log = rev_info_cache[entry.created_rev]
else:
### i think this needs some get_last_history action to be accurate
rev, author, date, log, changes = \
_get_rev_details(svnrepos, entry.created_rev, subpool)
rev_info_cache[entry.created_rev] = rev, author, date, log
file.log_error = 0
file.rev = rev
file.author = author
file.date = _datestr_to_date(date, subpool)
file.log = log
file.size = entry.size
core.svn_pool_destroy(subpool)
class FileDiff:
def __init__(self, rev1, url1, rev2, url2, ctx, pool, diffoptions=[]):
assert url1 or url2
self.tempfile1 = None
self.tempfile2 = None
self.rev1 = rev1
self.url1 = url1
self.rev2 = rev2
self.url2 = url2
self.diffoptions = diffoptions
self.ctx = ctx
# the caller can't manage this pool very well given our indirect use
# of it. so we'll create a subpool and clear it at "proper" times.
self.pool = core.svn_pool_create(pool)
def either_binary(self):
"Return true if either of the files are binary."
### broken
return 0
def get_files(self):
if self.tempfile1:
# no need to do more. we ran this already.
return self.tempfile1, self.tempfile2
self.tempfile1 = tempfile.mktemp()
stream = core.svn_stream_from_aprfile(self.tempfile1, self.pool)
client.svn_client_cat(stream, self.url1, _rev2optrev(self.rev1),
self.ctx, self.pool)
core.svn_stream_close(stream)
self.tempfile2 = tempfile.mktemp()
stream = core.svn_stream_from_aprfile(self.tempfile2, self.pool)
client.svn_client_cat(stream, self.url2, _rev2optrev(self.rev2),
self.ctx, self.pool)
core.svn_stream_close(stream)
# get rid of anything we put into our subpool
core.svn_pool_clear(self.pool)
return self.tempfile1, self.tempfile2
def get_pipe(self):
self.get_files()
# use an array for the command to avoid the shell and potential
# security exposures
cmd = ["diff"] \
+ self.diffoptions \
+ [self.tempfile1, self.tempfile2]
# the windows implementation of popen2 requires a string
if sys.platform == "win32":
cmd = _escape_msvcrt_shell_command(cmd)
# open the pipe, forget the end for writing to the child (we won't),
# and then return the file object for reading from the child.
fromchild, tochild = popen2.popen2(cmd)
tochild.close()
return fromchild
def __del__(self):
# it seems that sometimes the files are deleted, so just ignore any
# failures trying to remove them
if self.tempfile1 is not None:
try:
os.remove(self.tempfile1)
except OSError:
pass
if self.tempfile2 is not None:
try:
os.remove(self.tempfile2)
except OSError:
pass
def _escape_msvcrt_shell_command(argv):
return '"' + string.join(map(_escape_msvcrt_shell_arg, argv), " ") + '"'
def _escape_msvcrt_shell_arg(arg):
arg = re.sub(_re_slashquote, r'\1\1\2', arg)
arg = '"' + string.replace(arg, '"', '"^""') + '"'
return arg
_re_slashquote = re.compile(r'(\\+)(\"|$)')
def do_diff(svnrepos, path1, rev1, path2, rev2, diffoptions):
url1 = svnrepos.rootpath + (path1 and '/' + path1)
url2 = svnrepos.rootpath + (path2 and '/' + path2)
return FileDiff(rev1, url1, rev2, url2,
svnrepos.ctx, svnrepos.pool, diffoptions)
class SelfCleanFP:
def __init__(self, path):
self._fp = open(path, 'r')
self._path = path
self._eof = 0
def read(self, len):
if len:
chunk = self._fp.read(len)
else:
chunk = self._fp.read()
if chunk == '':
self._eof = 1
return chunk
def readline(self):
chunk = self._fp.readline()
if chunk == '':
self._eof = 1
return chunk
def close(self):
self._fp.close()
os.remove(self._path)
def __del__(self):
self.close()
def eof(self):
return self._eof
class SubversionRepository(vclib.Repository):
def __init__(self, name, rootpath, rev=None):
# Init the client app
core.apr_initialize()
pool = core.svn_pool_create(None)
core.svn_config_ensure(None, pool)
# Start populating our members
self.pool = pool
self.name = name
self.rootpath = rootpath
# Setup the client context baton, complete with non-prompting authstuffs.
ctx = client.svn_client_ctx_t()
providers = []
providers.append(client.svn_client_get_simple_provider(pool))
providers.append(client.svn_client_get_username_provider(pool))
providers.append(client.svn_client_get_ssl_server_trust_file_provider(pool))
providers.append(client.svn_client_get_ssl_client_cert_file_provider(pool))
providers.append(client.svn_client_get_ssl_client_cert_pw_file_provider(pool))
ctx.auth_baton = core.svn_auth_open(providers, pool)
ctx.config = core.svn_config_get_config(None, pool)
self.ctx = ctx
# Fetch the youngest, which we'll pray is the largest of all the
# committed revisions of the root directory's children.
dirents = client.svn_client_ls(self.rootpath, _rev2optrev('HEAD'), 0,
self.ctx, self.pool)
self.youngest = -1
for name in dirents.keys():
entry = dirents[name]
self.youngest = max(entry.created_rev, self.youngest)
if rev is not None:
self.rev = rev
if self.rev > self.youngest:
raise vclib.InvalidRevision(self.rev)
else:
self.rev = self.youngest
self._dirent_cache = { }
self._dirent_cache[str(self.youngest)] = dirents
def __del__(self):
core.svn_pool_destroy(self.pool)
core.apr_terminate()
def itemtype(self, path_parts):
if not len(path_parts):
return vclib.DIR
dirents = self.get_dirents(path_parts[:-1], self.rev)
try:
entry = dirents[path_parts[-1]]
if entry.kind == core.svn_node_dir:
return vclib.DIR
if entry.kind == core.svn_node_file:
return vclib.FILE
except KeyError:
raise vclib.ItemNotFound(path_parts)
def openfile(self, path_parts, rev=None):
if rev is None:
rev = self.rev
else:
rev = int(rev)
url = self.rootpath
if len(path_parts):
url = self.rootpath + '/' + self._getpath(path_parts)
tmp_file = tempfile.mktemp()
stream = core.svn_stream_from_aprfile(tmp_file, self.pool)
### rev here should be the last history revision of the URL
client.svn_client_cat(stream, url, _rev2optrev(rev), self.ctx, self.pool)
core.svn_stream_close(stream)
return SelfCleanFP(tmp_file), rev
def listdir(self, path_parts, options):
entries = [ ]
dirents = self.get_dirents(path_parts, self.rev)
for name in dirents.keys():
entry = dirents[name]
if entry.kind == core.svn_node_dir:
kind = vclib.DIR
elif entry.kind == core.svn_node_file:
kind = vclib.FILE
entries.append(vclib.DirEntry(name, kind))
return entries
def dirlogs(self, path_parts, entries, options):
get_logs(self, self._getpath(path_parts), entries)
def filelog(self, path_parts, rev, options):
full_name = self._getpath(path_parts)
if rev is not None:
try:
rev = int(rev)
except ValueError:
vclib.InvalidRevision(rev)
# It's okay if we're told to not show all logs on a file -- all
# the revisions should match correctly anyway.
lc = LogCollector(full_name, options.get('svn_show_all_dir_logs', 0))
dir_url = self.rootpath
if full_name:
dir_url = dir_url + '/' + full_name
cross_copies = options.get('svn_cross_copies', 0)
client.svn_client_log([dir_url], _rev2optrev(self.rev), _rev2optrev(1),
1, not cross_copies, lc.add_log,
self.ctx, self.pool)
revs = lc.logs
revs.sort()
prev = None
for rev in revs:
rev.prev = prev
prev = rev
return revs
def _getpath(self, path_parts):
return string.join(path_parts, '/')
def get_dirents(self, path_parts, rev):
if len(path_parts):
path = self._getpath(path_parts)
key = str(rev) + '/' + path
dir_url = self.rootpath + '/' + path
else:
path = None
key = str(rev)
dir_url = self.rootpath
dirents = self._dirent_cache.get(key)
if dirents:
return dirents
dirents = client.svn_client_ls(dir_url, _rev2optrev(rev), 0,
self.ctx, self.pool)
self._dirent_cache[key] = dirents
return dirents
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