blob: 9149acb72b04417fb435d84304c1bc73c49bc140 [file] [log] [blame]
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
#
# mailer.py: send email describing a commit
#
# $HeadURL$
# $LastChangedDate$
# $LastChangedBy$
# $LastChangedRevision$
#
# USAGE: mailer.py commit REPOS REVISION [CONFIG-FILE]
# mailer.py propchange REPOS REVISION AUTHOR REVPROPNAME [CONFIG-FILE]
# mailer.py propchange2 REPOS REVISION AUTHOR REVPROPNAME ACTION \
# [CONFIG-FILE]
# mailer.py lock REPOS AUTHOR [CONFIG-FILE]
# mailer.py unlock REPOS AUTHOR [CONFIG-FILE]
#
# Using CONFIG-FILE, deliver an email describing the changes between
# REV and REV-1 for the repository REPOS.
#
# ACTION was added as a fifth argument to the post-revprop-change hook
# in Subversion 1.2.0. Its value is one of 'A', 'M' or 'D' to indicate
# if the property was added, modified or deleted, respectively.
#
# See _MIN_SVN_VERSION below for which version of Subversion's Python
# bindings are required by this version of mailer.py.
import os
import sys
if sys.hexversion >= 0x3000000:
PY3 = True
import configparser
from urllib.parse import quote as _url_quote
else:
PY3 = False
import ConfigParser as configparser
from urllib import quote as _url_quote
import time
import subprocess
from io import BytesIO
import smtplib
import re
import tempfile
import codecs
# Minimal version of Subversion's bindings required
_MIN_SVN_VERSION = [1, 5, 0]
# Import the Subversion Python bindings, making sure they meet our
# minimum version requirements.
import svn.fs
import svn.delta
import svn.repos
import svn.core
if _MIN_SVN_VERSION > [svn.core.SVN_VER_MAJOR,
svn.core.SVN_VER_MINOR,
svn.core.SVN_VER_PATCH]:
sys.stderr.write(
"You need version %s or better of the Subversion Python bindings.\n" \
% ".".join([str(x) for x in _MIN_SVN_VERSION]))
sys.exit(1)
# Absorb difference between Python 2 and Python >= 3
if PY3:
def to_bytes(x):
return x.encode('utf-8')
def to_str(x):
return x.decode('utf-8')
# We never use sys.stdin nor sys.stdout TextIOwrapper.
_stdin = sys.stdin.buffer
_stdout = sys.stdout.buffer
else:
# Python 2
def to_bytes(x):
return x
def to_str(x):
return x
_stdin = sys.stdin
_stdout = sys.stdout
SEPARATOR = '=' * 78
def main(pool, cmd, config_fname, repos_dir, cmd_args):
### TODO: Sanity check the incoming args
if cmd == 'commit':
revision = int(cmd_args[0])
repos = Repository(repos_dir, revision, pool)
cfg = Config(config_fname, repos_dir,
{'author': repos.author,
'repos_basename': os.path.basename(repos.repos_dir)
})
messenger = Commit(pool, cfg, repos)
elif cmd == 'propchange' or cmd == 'propchange2':
revision = int(cmd_args[0])
author = cmd_args[1]
propname = cmd_args[2]
if cmd == 'propchange2' and cmd_args[3]:
action = cmd_args[3]
else:
action = 'A'
repos = Repository(repos_dir, revision, pool)
# Override the repos revision author with the author of the propchange
repos.author = author
cfg = Config(config_fname, repos_dir,
{'author': author,
'repos_basename': os.path.basename(repos.repos_dir)
})
messenger = PropChange(cfg, repos, author, propname, action)
elif cmd == 'lock' or cmd == 'unlock':
author = cmd_args[0]
repos = Repository(repos_dir, 0, pool) ### any old revision will do
# Override the repos revision author with the author of the lock/unlock
repos.author = author
cfg = Config(config_fname, repos_dir,
{'author': author,
'repos_basename': os.path.basename(repos.repos_dir)
})
messenger = Lock(pool, cfg, repos, author, cmd == 'lock')
else:
raise UnknownSubcommand(cmd)
output = create_output(cfg, repos)
return messenger.generate(output, pool)
def create_output(cfg, repos):
if cfg.is_set('general.mail_command'):
cls = PipeOutput
elif cfg.is_set('general.smtp_hostname'):
cls = SMTPOutput
else:
cls = StandardOutput
return cls(cfg, repos)
def remove_leading_slashes(path):
while path and path[0:1] == b'/':
path = path[1:]
return path
class Writer:
"Simple class for writing strings/binary, with optional encoding."
def __init__(self, maxbytes, encoding):
self.maxbytes = maxbytes
self.buffer = BytesIO()
# Attach a couple functions to SELF, rather than methods.
self.write_binary = self.buffer.write
if codecs.lookup(encoding) != codecs.lookup('utf-8'):
def _write(s):
"Write text string S using the given encoding."
return self.buffer.write(s.encode(encoding, 'backslashreplace'))
else:
def _write(s):
"Write text string S using the *default* encoding (utf-8)."
return self.buffer.write(to_bytes(s))
def write_limited(s):
# If it looks like this write() will surpass the maximum length,
# then bail out.
if len(self.buffer.getbuffer()) + len(s) > self.maxbytes:
raise MessageTooLarge
return _write(s)
self.write = write_limited
class OutputBase:
"Abstract base class to formalize the interface of output methods"
def __init__(self, cfg, repos):
self.cfg = cfg
self.repos = repos
self._CHUNKSIZE = 128 * 1024
def send(self, subject_line, group, params, long_func, short_func):
### get the MAXBYTEs from the configuration
writer = Writer(90000, self.get_encoding())
try:
try:
long_func(writer)
except MessageTooLarge:
writer.buffer.truncate(0)
writer.buffer.seek(0)
try:
short_func(writer)
except MessageTooLarge:
# NOTE: don't use the Writer() API, or it will check the
# length again. Reach inside.
writer.buffer.write(b'\n\n\n... message too long. Truncated.\n')
# FALLTHRU
except MessageSendFailure:
return True # failed
self.deliver(subject_line, group, params, writer.buffer.getvalue())
return False # succeeded
def get_encoding(self):
"""Get the encoding for text-to-bytes in the output.
This will default to UTF-8. If the output mechanism needs a different
encoding, then override this method to provide the custom encoding.
"""
return 'utf-8'
def deliver(self, subject_line, group, params, body):
"""Override this method.
### FIX THIS DOCSTRING
Begin writing an output representation. SUBJECT_LINE is a subject line
describing the action (commit, properties, lock), which may be tweaked
given other conditions. GROUP is the name of the configuration file
group which is causing this output to be produced. PARAMS is a
dictionary of any named subexpressions of regular expressions defined
in the configuration file, plus the key 'author' contains the author
of the action being reported.
Return bytes() for the prefix of the content to deliver.
"""
raise NotImplementedError
class MailedOutput(OutputBase):
def get_prefix(self, subject_line, group, params):
# whitespace (or another character) separated list of addresses
# which must be split into a clean list
to_addr_in = self.cfg.get('to_addr', group, params)
# if list of addresses starts with '[.]'
# use the character between the square brackets as split char
# else use whitespaces
if len(to_addr_in) >= 3 and to_addr_in[0] == '[' \
and to_addr_in[2] == ']':
self.to_addrs = \
[_f for _f in to_addr_in[3:].split(to_addr_in[1]) if _f]
else:
self.to_addrs = [_f for _f in to_addr_in.split() if _f]
self.from_addr = self.cfg.get('from_addr', group, params) \
or self.repos.author or 'no_author'
# if the from_addr (also) starts with '[.]' (may happen if one
# map is used for both to_addr and from_addr) remove '[.]'
if len(self.from_addr) >= 3 and self.from_addr[0] == '[' \
and self.from_addr[2] == ']':
self.from_addr = self.from_addr[3:]
self.reply_to = self.cfg.get('reply_to', group, params)
# if the reply_to (also) starts with '[.]' (may happen if one
# map is used for both to_addr and reply_to) remove '[.]'
if len(self.reply_to) >= 3 and self.reply_to[0] == '[' \
and self.reply_to[2] == ']':
self.reply_to = self.reply_to[3:]
# Return the prefix for the mail message.
return self.mail_headers(subject_line, group)
def _rfc2047_encode(self, hdr):
# Return the result of splitting HDR into tokens (on space
# characters), encoding (per RFC2047) each token as necessary, and
# slapping 'em back to together again.
from email.header import Header
def _maybe_encode_header(hdr_token):
try:
hdr_token.encode('ascii')
return hdr_token
except UnicodeError:
return Header(hdr_token, 'utf-8').encode()
return ' '.join(map(_maybe_encode_header, hdr.split()))
def mail_headers(self, subject_line, group):
from email import utils
subject = self._rfc2047_encode(subject_line)
from_hdr = self._rfc2047_encode(self.from_addr)
to_hdr = self._rfc2047_encode(', '.join(self.to_addrs))
hdrs = 'From: %s\n' \
'To: %s\n' \
'Subject: %s\n' \
'Date: %s\n' \
'Message-ID: %s\n' \
'MIME-Version: 1.0\n' \
'Content-Type: text/plain; charset=UTF-8\n' \
'Content-Transfer-Encoding: 8bit\n' \
'X-Svn-Commit-Project: %s\n' \
'X-Svn-Commit-Author: %s\n' \
'X-Svn-Commit-Revision: %d\n' \
'X-Svn-Commit-Repository: %s\n' \
% (from_hdr, to_hdr, subject,
utils.formatdate(), utils.make_msgid(), group,
self.repos.author or 'no_author', self.repos.rev,
os.path.basename(self.repos.repos_dir))
if self.reply_to:
hdrs = '%sReply-To: %s\n' % (hdrs, self.reply_to)
return (hdrs + '\n').encode()
class SMTPOutput(MailedOutput):
"Deliver a mail message to an MTA using SMTP."
def deliver(self, subject_line, group, params, body):
"""
Send email via SMTP or SMTP_SSL, logging in if username is
specified.
Errors such as invalid recipient, which affect a particular email,
are reported to stderr and raise MessageSendFailure. If the caller
has other emails to send, it may continue doing so.
Errors caused by bad configuration, such as login failures, for
which too many occurrences could lead to SMTP server lockout, are
reported to stderr and re-raised. These should be considered fatal
(to minimize the chances of said lockout).
"""
prefix = self.get_prefix(subject_line, group, params)
if self.cfg.is_set('general.smtp_port'):
smtp_port = self.cfg.general.smtp_port
else:
smtp_port = 0
try:
if self.cfg.is_set('general.smtp_ssl') and self.cfg.general.smtp_ssl == 'yes':
server = smtplib.SMTP_SSL(self.cfg.general.smtp_hostname, smtp_port)
else:
server = smtplib.SMTP(self.cfg.general.smtp_hostname, smtp_port)
except Exception as detail:
sys.stderr.write("mailer.py: Failed to instantiate SMTP object: %s\n" % (detail,))
# Any error to instantiate is fatal
raise
try:
if self.cfg.is_set('general.smtp_username'):
try:
server.login(self.cfg.general.smtp_username,
self.cfg.general.smtp_password)
except smtplib.SMTPException as detail:
sys.stderr.write("mailer.py: SMTP login failed with username %s and/or password: %s\n"
% (self.cfg.general.smtp_username, detail,))
# Any error at login is fatal
raise
server.sendmail(self.from_addr, self.to_addrs, prefix + body)
### TODO: 'raise .. from' is Python 3+. When we convert this
### script to Python 3, uncomment 'from detail' below
### (2 instances):
except smtplib.SMTPRecipientsRefused as detail:
sys.stderr.write("mailer.py: SMTP recipient(s) refused: %s: %s\n"
% (self.to_addrs, detail,))
raise MessageSendFailure ### from detail
except smtplib.SMTPSenderRefused as detail:
sys.stderr.write("mailer.py: SMTP sender refused: %s: %s\n"
% (self.from_addr, detail,))
raise MessageSendFailure ### from detail
except smtplib.SMTPException as detail:
# All other errors are fatal; this includes:
# SMTPHeloError, SMTPDataError, SMTPNotSupportedError
sys.stderr.write("mailer.py: SMTP error occurred: %s\n" % (detail,))
raise
finally:
try:
server.quit()
except smtplib.SMTPException as detail:
sys.stderr.write("mailer.py: Error occurred during SMTP session cleanup: %s\n"
% (detail,))
class StandardOutput(OutputBase):
"Print the commit message to stdout."
def get_encoding(self):
return sys.stdout.encoding if PY3 else 'utf-8'
def deliver(self, subject_line, group, params, body):
_stdout.write((
("Group: " + (group or "defaults") + "\n")
+ ("Subject: %s\n\n" % (subject_line,))
).encode() ### whoops. use the encoding
+ body)
class PipeOutput(MailedOutput):
"Deliver a mail message to an MTA via a pipe."
def __init__(self, cfg, repos):
MailedOutput.__init__(self, cfg, repos)
# figure out the command for delivery
self.cmd = cfg.general.mail_command.split()
def deliver(self, subject_line, group, params, body):
prefix = self.get_prefix(subject_line, group, params)
### gotta fix this. this is pretty specific to sendmail and qmail's
### mailwrapper program. should be able to use option param substitution
cmd = self.cmd + [ '-f', self.from_addr ] + self.to_addrs
# construct the pipe for talking to the mailer
self.pipe = subprocess.Popen(cmd, stdin=subprocess.PIPE,
close_fds=sys.platform != "win32")
self.pipe.write(prefix + body)
# signal that we're done sending content
self.pipe.stdin.close()
# wait to avoid zombies
self.pipe.wait()
class Messenger:
def __init__(self, cfg, repos, prefix_param):
self.cfg = cfg
self.repos = repos
self.prefix_param = prefix_param
# Subclasses should set this instance variable to describe the action
# being performed. See OutputBase.start() docstring.
self.basic_subject = ''
def make_subject(self, basic_subject, group, params):
prefix = self.cfg.get(self.prefix_param, group, params)
if prefix:
subject = prefix + ' ' + basic_subject
else:
subject = basic_subject
try:
truncate_subject = int(
self.cfg.get('truncate_subject', group, params))
except ValueError:
truncate_subject = 0
# truncate subject as UTF-8 string.
# Note: there still exists an issue on combining characters.
if truncate_subject:
bsubject = to_bytes(subject)
if len(bsubject) > truncate_subject:
idx = truncate_subject - 2
while b'\x80' <= bsubject[idx-1:idx] <= b'\xbf':
idx -= 1
subject = to_str(bsubject[:idx-1]) + "..."
return subject
class Commit(Messenger):
def __init__(self, pool, cfg, repos):
Messenger.__init__(self, cfg, repos, 'commit_subject_prefix')
# get all the changes and sort by path
editor = svn.repos.ChangeCollector(repos.fs_ptr, repos.root_this, pool)
e_ptr, e_baton = svn.delta.make_editor(editor, pool)
svn.repos.replay2(repos.root_this, "", svn.core.SVN_INVALID_REVNUM, 1, e_ptr, e_baton, None, pool)
self.changelist = sorted(editor.get_changes().items())
log = to_str(repos.get_rev_prop(svn.core.SVN_PROP_REVISION_LOG, pool) or b'')
# collect the set of groups and the unique sets of params for the options
self.groups = { }
for path, change in self.changelist:
for (group, params) in self.cfg.which_groups(to_str(path), log):
# turn the params into a hashable object and stash it away
param_list = sorted(params.items())
# collect the set of paths belonging to this group
if (group, tuple(param_list)) in self.groups:
old_param, paths = self.groups[group, tuple(param_list)]
else:
paths = { }
paths[path] = None
self.groups[group, tuple(param_list)] = (params, paths)
# figure out the changed directories
dirs = { }
for path, change in self.changelist:
path = to_str(path)
if change.item_kind == svn.core.svn_node_dir:
dirs[path] = None
else:
idx = path.rfind('/')
if idx == -1:
dirs[''] = None
else:
dirs[path[:idx]] = None
dirlist = list(dirs.keys())
commondir, dirlist = get_commondir(dirlist)
# compose the basic subject line. later, we can prefix it.
dirlist_s = ' '.join(sorted(dirlist))
if commondir:
self.basic_subject = 'r%d - in %s: %s' % (repos.rev, commondir, dirlist_s)
else:
self.basic_subject = 'r%d - %s' % (repos.rev, dirlist_s)
def generate(self, output, scratch_pool):
"Generate email for the various groups and option-params."
### the groups need to be further compressed. if the headers and
### body are the same across groups, then we can have multiple To:
### addresses. SMTPOutput holds the entire message body in memory,
### so if the body doesn't change, then it can be sent N times
### rather than rebuilding it each time.
iterpool = svn.core.svn_pool_create(scratch_pool)
failed = False
for (group, param_tuple), (params, paths) in sorted(self.groups.items()):
subject_line = self.make_subject(self.basic_subject, group, params)
def long_commit(writer):
# generate commit message (with diffs) for this group and params
generate_commit(writer, self.cfg, self.repos, self.changelist, False,
group, params, paths, iterpool)
def short_commit(writer):
# generate a shorter message, using URLs instead of diffs
generate_commit(writer, self.cfg, self.repos, self.changelist, True,
group, params, paths, iterpool)
failed |= output.send(subject_line, group, params,
long_commit, short_commit)
svn.core.svn_pool_clear(iterpool)
svn.core.svn_pool_destroy(iterpool)
return failed
class PropChange(Messenger):
def __init__(self, cfg, repos, author, propname, action):
Messenger.__init__(self, cfg, repos, 'propchange_subject_prefix')
self.author = author
self.propname = propname
self.action = action
# collect the set of groups and the unique sets of params for the options
self.groups = { }
for (group, params) in self.cfg.which_groups('', None):
# turn the params into a hashable object and stash it away
param_list = sorted(params.items())
self.groups[group, tuple(param_list)] = params
self.basic_subject = 'r%d - %s' % (repos.rev, propname)
def generate(self, output, scratch_pool):
actions = { 'A': 'added', 'M': 'modified', 'D': 'deleted' }
failed = False
### maybe create an iterpool?
for (group, param_tuple), params in self.groups.items():
subject_line = self.make_subject(self.basic_subject, group, params)
def long_propchange(writer):
writer.write('Author: %s\n'
'Revision: %s\n'
'Property Name: %s\n'
'Action: %s\n'
'\n'
% (self.author, self.repos.rev, self.propname,
actions.get(self.action, 'Unknown (\'%s\')' \
% self.action)))
if self.action == 'A' or self.action not in actions:
writer.write('Property value:\n')
propvalue = self.repos.get_rev_prop(self.propname, scratch_pool)
writer.write(propvalue)
elif self.action == 'M':
writer.write('Property diff:\n')
tempfile1 = tempfile.NamedTemporaryFile()
tempfile1.write(_stdin.read())
tempfile1.flush()
tempfile2 = tempfile.NamedTemporaryFile()
tempfile2.write(self.repos.get_rev_prop(self.propname, scratch_pool))
tempfile2.flush()
for diffs in generate_diff(self.cfg.get_diff_cmd(group, {
'label_from' : 'old property value',
'label_to' : 'new property value',
'from' : tempfile1.name,
'to' : tempfile2.name,
})):
writer.write(to_str(diffs.raw))
failed |= output.send(subject_line, group, params, long_propchange, None)
return failed
def get_commondir(dirlist):
"""Figure out the common portion/parent (commondir) of all the paths
in DIRLIST and return a tuple consisting of commondir, dirlist. If
a commondir is found, the dirlist returned is rooted in that
commondir. If no commondir is found, dirlist is returned unchanged,
and commondir is the empty string."""
if len(dirlist) < 2 or '/' in dirlist:
commondir = ''
newdirs = dirlist
else:
common = dirlist[0].split('/')
for j in range(1, len(dirlist)):
d = dirlist[j]
parts = d.split('/')
for i in range(len(common)):
if i == len(parts) or common[i] != parts[i]:
del common[i:]
break
commondir = '/'.join(common)
if commondir:
# strip the common portion from each directory
l = len(commondir) + 1
newdirs = [ ]
for d in dirlist:
if d == commondir:
newdirs.append('.')
else:
newdirs.append(d[l:])
else:
# nothing in common, so reset the list of directories
newdirs = dirlist
return commondir, newdirs
class Lock(Messenger):
def __init__(self, pool, cfg, repos, author, do_lock):
self.author = author
self.do_lock = do_lock
Messenger.__init__(self, cfg, repos,
(do_lock and 'lock_subject_prefix'
or 'unlock_subject_prefix'))
# read all the locked paths from STDIN and strip off the trailing newlines
self.dirlist = [to_str(x).rstrip() for x in _stdin.readlines()]
# collect the set of groups and the unique sets of params for the options
self.groups = { }
for path in self.dirlist:
for (group, params) in self.cfg.which_groups(path, None):
# turn the params into a hashable object and stash it away
param_list = sorted(params.items())
# collect the set of paths belonging to this group
if (group, tuple(param_list)) in self.groups:
old_param, paths = self.groups[group, tuple(param_list)]
else:
paths = { }
paths[path] = None
self.groups[group, tuple(param_list)] = (params, paths)
commondir, dirlist = get_commondir(self.dirlist)
# compose the basic subject line. later, we can prefix it.
dirlist_s = ' '.join(sorted(dirlist))
if commondir:
self.basic_subject = '%s: %s' % (commondir, dirlist_s)
else:
self.basic_subject = dirlist_s
# The lock comment is the same for all paths, so we can just pull
# the comment for the first path in the dirlist and cache it.
self.lock = svn.fs.svn_fs_get_lock(self.repos.fs_ptr,
to_bytes(self.dirlist[0]),
pool)
def generate(self, output, scratch_pool):
failed = False
for (group, param_tuple), (params, paths) in sorted(self.groups.items()):
subject_line = self.make_subject(self.basic_subject, group, params)
def long_lock(writer):
writer.write('Author: %s\n'
'%s paths:\n' %
(self.author, self.do_lock and 'Locked' or 'Unlocked'))
self.dirlist.sort()
for dir in self.dirlist:
writer.write(' %s\n\n' % dir)
if self.do_lock:
writer.write('Comment:\n%s\n' % (self.lock.comment or ''))
failed |= output.send(subject_line, group, params, long_lock, None)
return failed
class DiffSelections:
def __init__(self, cfg, group, params):
self.add = False
self.copy = False
self.delete = False
self.modify = False
gen_diffs = cfg.get('generate_diffs', group, params)
### Do a little dance for deprecated options. Note that even if you
### don't have an option anywhere in your configuration file, it
### still gets returned as non-None.
if len(gen_diffs):
list = gen_diffs.split(" ")
for item in list:
if item == 'add':
self.add = True
if item == 'copy':
self.copy = True
if item == 'delete':
self.delete = True
if item == 'modify':
self.modify = True
else:
self.add = True
self.copy = True
self.delete = True
self.modify = True
### These options are deprecated
suppress = cfg.get('suppress_deletes', group, params)
if suppress == 'yes':
self.delete = False
suppress = cfg.get('suppress_adds', group, params)
if suppress == 'yes':
self.add = False
class DiffURLSelections:
def __init__(self, cfg, group, params):
self.cfg = cfg
self.group = group
self.params = params
def _get_url(self, action, repos_rev, change):
# The parameters for the URLs generation need to be placed in the
# parameters for the configuration module, otherwise we may get
# KeyError exceptions.
params = self.params.copy()
params['path'] = _url_quote(change.path) if change.path else None
params['base_path'] = (_url_quote(change.base_path)
if change.base_path else None)
params['rev'] = repos_rev
params['base_rev'] = change.base_rev
return self.cfg.get("diff_%s_url" % action, self.group, params)
def get_add_url(self, repos_rev, change):
return self._get_url('add', repos_rev, change)
def get_copy_url(self, repos_rev, change):
return self._get_url('copy', repos_rev, change)
def get_delete_url(self, repos_rev, change):
return self._get_url('delete', repos_rev, change)
def get_modify_url(self, repos_rev, change):
return self._get_url('modify', repos_rev, change)
def generate_commit(writer, cfg, repos, changelist, no_diff_content,
group, params, paths, pool):
svndate = repos.get_rev_prop(svn.core.SVN_PROP_REVISION_DATE, pool)
### pick a different date format?
date = time.ctime(svn.core.secs_from_timestr(svndate, pool))
show_nonmatching_paths = cfg.get('show_nonmatching_paths', group, params) \
or 'yes'
params_with_rev = params.copy()
params_with_rev['rev'] = repos.rev
commit_url = cfg.get('commit_url', group, params_with_rev)
# figure out the lists of changes outside the selected path-space
if len(paths) != len(changelist) and show_nonmatching_paths != 'no':
other_summary = generate_summary(changelist, paths, False)
else:
other_summary = None
if len(paths) != len(changelist) and show_nonmatching_paths == 'yes':
other_diffs = generate_changelist_diffs(cfg, repos, changelist,
no_diff_content, False,
group, params, paths,
date, pool)
else:
other_diffs = None
summary = generate_summary(changelist, paths, True)
data = _data(
author=repos.author,
date=date,
rev=repos.rev,
log=to_str(repos.get_rev_prop(svn.core.SVN_PROP_REVISION_LOG, pool) or b''),
commit_url=commit_url,
summary=summary,
no_diff_content=no_diff_content,
show_nonmatching_paths=show_nonmatching_paths,
other_summary=other_summary,
diffs=generate_changelist_diffs(cfg, repos, changelist,
no_diff_content, True,
group, params, paths, date, pool),
other_diffs=other_diffs,
)
### clean this up in future rev. Just use wb
w = writer.write
wb = writer.write_binary
render_commit(w, wb, data)
def generate_summary(changelist, paths, in_paths):
def gather_info(action):
return _gather_paths(action, changelist, paths, in_paths)
return _data(
added=gather_info(svn.repos.CHANGE_ACTION_ADD),
replaced=gather_info(svn.repos.CHANGE_ACTION_REPLACE),
deleted=gather_info(svn.repos.CHANGE_ACTION_DELETE),
modified=gather_info(svn.repos.CHANGE_ACTION_MODIFY),
)
def _gather_paths(action, changelist, paths, in_paths):
items = [ ]
for path, change in changelist:
if change.action == action and (path in paths) == in_paths:
item = _data(
path=path,
is_dir=change.item_kind == svn.core.svn_node_dir,
props_changed=change.prop_changes,
text_changed=change.text_changed,
copied=(change.action == svn.repos.CHANGE_ACTION_ADD \
or change.action == svn.repos.CHANGE_ACTION_REPLACE) \
and change.base_path,
base_path=remove_leading_slashes(change.base_path),
base_rev=change.base_rev,
)
items.append(item)
return items
def generate_changelist_diffs(cfg, repos, changelist,
no_diff_content, in_paths,
group, params, paths, date, pool):
"This is a generator returning diffs for each change."
diffsels = DiffSelections(cfg, group, params)
diffurls = DiffURLSelections(cfg, group, params)
for path, change in changelist:
diff = diff_url = None
kind = None
label1 = None
label2 = None
src_fname = None
dst_fname = None
binary = None
singular = None
content = None
# just skip directories. they have no diffs.
if change.item_kind == svn.core.svn_node_dir:
continue
# is this change in (or out of) the set of matched paths?
if (path in paths) != in_paths:
continue
if change.base_rev != -1:
svndate = repos.get_rev_prop(svn.core.SVN_PROP_REVISION_DATE,
pool, change.base_rev)
### pick a different date format?
base_date = time.ctime(svn.core.secs_from_timestr(svndate, pool))
else:
base_date = ''
# figure out if/how to generate a diff
base_path_bytes = remove_leading_slashes(change.base_path)
base_path = (to_str(base_path_bytes)
if base_path_bytes is not None else None)
if change.action == svn.repos.CHANGE_ACTION_DELETE:
# it was delete.
kind = 'D'
# get the diff url, if any is specified
diff_url = diffurls.get_delete_url(repos.rev, change)
# show the diff?
if diffsels.delete:
diff = svn.fs.FileDiff(repos.get_root(change.base_rev),
base_path_bytes, None, None, pool)
label1 = '%s\t%s\t(r%s)' % (base_path, date, change.base_rev)
label2 = '/dev/null\t00:00:00 1970\t(deleted)'
singular = True
elif change.action == svn.repos.CHANGE_ACTION_ADD \
or change.action == svn.repos.CHANGE_ACTION_REPLACE:
if base_path and (change.base_rev != -1):
# any diff of interest?
if change.text_changed:
# this file was copied and modified.
kind = 'W'
# get the diff url, if any is specified
diff_url = diffurls.get_copy_url(repos.rev, change)
# show the diff?
if diffsels.modify:
diff = svn.fs.FileDiff(repos.get_root(change.base_rev),
base_path_bytes,
repos.root_this, change.path,
pool)
label1 = ('%s\t%s\t(r%s, copy source)'
% (base_path, base_date, change.base_rev))
label2 = ('%s\t%s\t(r%s)'
% (to_str(change.path), date, repos.rev))
singular = False
else:
# this file was copied.
kind = 'C'
if diffsels.copy:
diff = svn.fs.FileDiff(None, None, repos.root_this,
change.path, pool)
label1 = ('/dev/null\t00:00:00 1970\t'
'(empty, because file is newly added)')
label2 = ('%s\t%s\t(r%s, copy of r%s, %s)'
% (to_str(change.path),
date, repos.rev, change.base_rev,
base_path))
singular = False
else:
# the file was added.
kind = 'A'
# get the diff url, if any is specified
diff_url = diffurls.get_add_url(repos.rev, change)
# show the diff?
if diffsels.add:
diff = svn.fs.FileDiff(None, None, repos.root_this,
change.path, pool)
label1 = '/dev/null\t00:00:00 1970\t' \
'(empty, because file is newly added)'
label2 = '%s\t%s\t(r%s)' \
% (to_str(change.path), date, repos.rev)
singular = True
elif not change.text_changed:
# the text didn't change, so nothing to show.
continue
else:
# a simple modification.
kind = 'M'
# get the diff url, if any is specified
diff_url = diffurls.get_modify_url(repos.rev, change)
# show the diff?
if diffsels.modify:
diff = svn.fs.FileDiff(repos.get_root(change.base_rev),
base_path,
repos.root_this, change.path,
pool)
label1 = '%s\t%s\t(r%s)' \
% (base_path, base_date, change.base_rev)
label2 = '%s\t%s\t(r%s)' \
% (to_str(change.path), date, repos.rev)
singular = False
if diff:
binary = diff.either_binary()
if binary or no_diff_content:
content = src_fname = dst_fname = None
else:
src_fname, dst_fname = diff.get_files()
content = generate_diff(cfg.get_diff_cmd(group, {
'label_from' : label1,
'label_to' : label2,
'from' : src_fname,
'to' : dst_fname,
}))
# return a data item for this diff
yield _data(
path=change.path,
base_path=base_path_bytes,
base_rev=change.base_rev,
diff=diff,
diff_url=diff_url,
kind=kind,
label_from=label1,
label_to=label2,
from_fname=src_fname,
to_fname=dst_fname,
binary=binary,
singular=singular,
content=content,
)
def _classify_diff_line(line, seen_change):
# classify the type of line.
first = line[:1]
ltype = ''
if first == '@':
seen_change = True
ltype = 'H'
elif first == '-':
if seen_change:
ltype = 'D'
else:
ltype = 'F'
elif first == '+':
if seen_change:
ltype = 'A'
else:
ltype = 'T'
elif first == ' ':
ltype = 'C'
else:
ltype = 'U'
if line[-2] == '\r':
line=line[0:-2] + '\n' # remove carriage return
return line, ltype, seen_change
def generate_diff(cmd):
seen_change = False
# By default we choose to incorporate child stderr into the output
pipe = subprocess.Popen(cmd,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
close_fds=sys.platform != "win32")
while True:
line = pipe.stdout.readline()
if not line:
# wait on the child so we don't end up with a billion zombies
pipe.wait()
return # will raise StopIteration
line, ltype, seen_change = _classify_diff_line(line, seen_change)
yield _data(
raw=line,
text=line[1:-1], # remove indicator and newline
type=ltype,
)
def render_commit(w, wb, data):
"Call W and/or WB to render the commit defined by DATA."
w('Author: %s\nDate: %s\nNew Revision: %s\n' % (data.author,
data.date,
data.rev))
if data.commit_url:
w('URL: %s\n\n' % data.commit_url)
else:
w('\n')
w('Log:\n%s\n\n' % data.log.strip())
# print summary sections
_render_summary(w, data.summary)
if data.other_summary:
if data.show_nonmatching_paths:
w('\nChanges in other areas also in this revision:\n')
_render_summary(w, data.other_summary)
else:
w('and changes in other areas\n')
if data.no_diff_content:
w('\nNOTE: this message was too long when including "diff" contents.'
'\n The contents have been replaced with URLs to display the'
'\n diff contents on a web page.'
'\n\n')
_render_diffs(w, wb, data.diffs, '')
if data.other_diffs:
_render_diffs(w, wb, data.other_diffs,
'\nDiffs of changes in other areas also'
' in this revision:\n')
def _render_summary(w, summary):
_render_list(w, 'Added', summary.added)
_render_list(w, 'Replaced', summary.replaced)
_render_list(w, 'Deleted', summary.deleted)
_render_list(w, 'Modified', summary.modified)
def _render_list(w, header, data_list):
if not data_list:
return
w(header + ':\n')
for d in data_list:
if d.is_dir:
is_dir = '/'
else:
is_dir = ''
if d.props_changed:
if d.text_changed:
props = ' (contents, props changed)'
else:
props = ' (props changed)'
else:
props = ''
w(' %s%s%s\n' % (to_str(d.path), is_dir, props))
if d.copied:
if is_dir:
text = ''
elif d.text_changed:
text = ', changed'
else:
text = ' unchanged'
w(' - copied%s from r%d, %s%s\n'
% (text, d.base_rev, to_str(d.base_path), is_dir))
def _render_diffs(w, wb, diffs, section_header):
"""Render diffs. Write the SECTION_HEADER if there are actually
any diffs to render."""
if not diffs:
return
section_header_printed = False
for diff in diffs:
if not diff.diff and not diff.diff_url:
continue
if not section_header_printed:
w(section_header)
section_header_printed = True
if diff.kind == 'D':
w('\nDeleted: %s\n' % to_str(diff.base_path))
elif diff.kind == 'A':
w('\nAdded: %s\n' % to_str(diff.path))
elif diff.kind == 'C':
w('\nCopied: %s (from r%d, %s)\n'
% (to_str(diff.path), diff.base_rev,
to_str(diff.base_path)))
elif diff.kind == 'W':
w('\nCopied and modified: %s (from r%d, %s)\n'
% (to_str(diff.path), diff.base_rev,
to_str(diff.base_path)))
else:
# kind == 'M'
w('\nModified: %s\n' % to_str(diff.path))
if diff.diff_url:
w('URL: %s\n' % diff.diff_url)
if not diff.diff:
continue
if diff.binary:
w(SEPARATOR + '\n')
if diff.singular:
w('Binary file. No diff available.\n')
else:
w('Binary file (source and/or target). No diff available.\n')
continue
if diff.content is None:
continue
w(SEPARATOR + '\n')
for line in diff.content:
wb(line.raw)
class Repository:
"Hold roots and other information about the repository."
def __init__(self, repos_dir, rev, pool):
self.repos_dir = repos_dir
self.rev = rev
# Any data that we HOLD will be allocated in this pool.
self.hold_pool = pool
self.repos_ptr = svn.repos.open(repos_dir, pool)
self.fs_ptr = svn.repos.fs(self.repos_ptr)
self.roots = { }
self.root_this = self.get_root(rev)
self.author = self.get_rev_prop(svn.core.SVN_PROP_REVISION_AUTHOR, pool)
if self.author is not None:
self.author = to_str(self.author)
def get_rev_prop(self, propname, scratch_pool, rev=None):
if not rev:
rev = self.rev
return svn.fs.revision_prop(self.fs_ptr, rev, propname, scratch_pool)
def get_root(self, rev):
try:
return self.roots[rev]
except KeyError:
pass
root = self.roots[rev] = svn.fs.revision_root(self.fs_ptr, rev, self.hold_pool)
return root
class Config:
# The predefined configuration sections. These are omitted from the
# set of groups.
PREDEFINED = ('general', 'defaults', 'maps')
def __init__(self, fname, repos_dir, default_params):
cp = configparser.ConfigParser()
cp.read(fname)
# record the (non-default) groups that we find
self._groups = [ ]
for section in cp.sections():
if not hasattr(self, section):
section_ob = _sub_section()
setattr(self, section, section_ob)
if section not in self.PREDEFINED:
self._groups.append(section)
else:
section_ob = getattr(self, section)
for option in cp.options(section):
# get the raw value -- we use the same format for *our* interpolation
value = cp.get(section, option, raw=1)
setattr(section_ob, option, value)
# be compatible with old format config files
if hasattr(self.general, 'diff') and not hasattr(self.defaults, 'diff'):
self.defaults.diff = self.general.diff
if not hasattr(self, 'maps'):
self.maps = _sub_section()
# prepare maps. this may remove sections from consideration as a group.
mapsections = self._prep_maps()
for sectname in mapsections:
self._groups.remove(sectname)
# process all the group sections.
self._prep_groups(self._groups, repos_dir, default_params)
def is_set(self, option):
"""Return None if the option is not set; otherwise, its value is returned.
The option is specified as a dotted symbol, such as 'general.mail_command'
"""
ob = self
for part in option.split('.'):
if not hasattr(ob, part):
return None
ob = getattr(ob, part)
return ob
def get(self, option, group, params):
"Get a config value with appropriate substitutions and value mapping."
# find the right value
value = None
if group:
sub = getattr(self, group)
value = getattr(sub, option, None)
if value is None:
value = getattr(self.defaults, option, '')
# parameterize it
if params is not None:
value = value % params
# apply any mapper
mapper = getattr(self.maps, option, None)
if mapper is not None:
value = mapper(value)
# Apply any parameters that may now be available for
# substitution that were not before the mapping.
if value is not None and params is not None:
value = value % params
return value
def get_diff_cmd(self, group, args):
"Get a diff command as a list of argv elements."
### do some better splitting to enable quoting of spaces
diff_cmd = self.get('diff', group, None).split()
cmd = [ ]
for part in diff_cmd:
cmd.append(part % args)
return cmd
def _prep_maps(self):
"""Rewrite the [maps] options into callables that look up values.
Returns a set of section names that are used for mappings, which
should not be considered as path-match groups.
"""
mapsections = set()
for optname, mapvalue in vars(self.maps).items():
if mapvalue[:1] == '[':
# a section is acting as a mapping
sectname = mapvalue[1:-1]
if not hasattr(self, sectname):
raise UnknownMappingSection(sectname)
# construct a lambda to look up the given value as an option name,
# and return the option's value. if the option is not present,
# then just return the value unchanged.
setattr(self.maps, optname,
lambda value,
sect=getattr(self, sectname): getattr(sect,
value.lower(),
value))
# mark for removal when all optnames are done
mapsections.add(sectname)
# elif test for other mapper types. possible examples:
# dbm:filename.db
# file:two-column-file.txt
# ldap:some-query-spec
# just craft a mapper function and insert it appropriately
else:
raise UnknownMappingSpec(mapvalue)
# remove each mapping section from consideration as a group
return mapsections
def _prep_groups(self, groups, repos_dir, default_params):
self._group_re = [ ]
### does it arrive as an abspath?
repos_dir = os.path.abspath(repos_dir)
def repos_params(section_name, defaults):
"Build key/value params for this section, based on current repos."
section = getattr(self, section_name) # should exist
if hasattr(section, 'for_repos'):
match = re.match(section.for_repos, repos_dir)
if not match:
# The FOR_REPOS selector does not apply to this repository.
return None # no params at all
# Extract key/value pairs from the regex match of this
# repository, and merge them into the default params.
# Make sure to copy() to avoid mutation of the argument.
return defaults.copy().update(match.groupdict())
# There are no repository-specific key/value params, to add.
return defaults
# compute the default repository-based parameters. start with some
# basic parameters, then bring in the regex-based params.
# Note: use the defaults, even if selected-against by FOR_REPOS
self._default_params = (repos_params('defaults', default_params)
or default_params)
# select the groups that apply to this repository
for group in groups:
params = repos_params(group, self._default_params)
if params is None:
# There was a FOR_REPOS, but this repos does not match.
# Thus, ignore this param group.
continue
sub = getattr(self, group)
# if a matching rule hasn't been given, then use the empty string
# as it will match all paths
for_paths = getattr(sub, 'for_paths', '')
# Build an optional regex to exclude some change paths.
exclude_paths = getattr(sub, 'exclude_paths', None)
if exclude_paths:
exclude_paths_re = re.compile(exclude_paths)
else:
exclude_paths_re = None
# Build an optional regex to extract key/value pairs from the
# log message to augment the params.
search_logmsg = getattr(sub, 'search_logmsg', None)
if search_logmsg is not None:
search_logmsg_re = re.compile(search_logmsg)
else:
search_logmsg_re = None
self._group_re.append((group,
re.compile(for_paths),
exclude_paths_re,
params,
search_logmsg_re))
# after all the groups are done, add in the default group
try:
self._group_re.append((None,
re.compile(self.defaults.for_paths),
None,
self._default_params,
None))
except AttributeError:
# there is no self.defaults.for_paths
pass
def which_groups(self, path, logmsg):
"Return the path's associated groups."
groups = []
for group, pattern, exclude_pattern, repos_params, search_logmsg_re in self._group_re:
match = pattern.match(path)
if match:
if exclude_pattern and exclude_pattern.match(path):
continue
params = repos_params.copy()
params.update(match.groupdict())
if search_logmsg_re is None:
groups.append((group, params))
else:
if logmsg is None:
logmsg = ''
for match in search_logmsg_re.finditer(logmsg):
# Add captured variables to (a copy of) params
msg_params = params.copy()
msg_params.update(match.groupdict())
groups.append((group, msg_params))
if not groups:
groups.append((None, self._default_params))
return groups
class _sub_section:
pass
class _data:
"Helper class to define an attribute-based hunk o' data."
def __init__(self, **kw):
vars(self).update(kw)
class MissingConfig(Exception):
pass
class UnknownMappingSection(Exception):
pass
class UnknownMappingSpec(Exception):
pass
class UnknownSubcommand(Exception):
pass
class MessageSendFailure(Exception):
pass
class MessageTooLarge(Exception):
pass
if __name__ == '__main__':
def usage():
scriptname = os.path.basename(sys.argv[0])
sys.stderr.write(
"""USAGE: %s commit REPOS REVISION [CONFIG-FILE]
%s propchange REPOS REVISION AUTHOR REVPROPNAME [CONFIG-FILE]
%s propchange2 REPOS REVISION AUTHOR REVPROPNAME ACTION [CONFIG-FILE]
%s lock REPOS AUTHOR [CONFIG-FILE]
%s unlock REPOS AUTHOR [CONFIG-FILE]
If no CONFIG-FILE is provided, the script will first search for a mailer.conf
file in REPOS/conf/. Failing that, it will search the directory in which
the script itself resides.
ACTION was added as a fifth argument to the post-revprop-change hook
in Subversion 1.2.0. Its value is one of 'A', 'M' or 'D' to indicate
if the property was added, modified or deleted, respectively.
""" % (scriptname, scriptname, scriptname, scriptname, scriptname))
sys.exit(1)
# Command list: subcommand -> number of arguments expected (not including
# the repository directory and config-file)
cmd_list = {'commit' : 1,
'propchange' : 3,
'propchange2': 4,
'lock' : 1,
'unlock' : 1,
}
config_fname = None
argc = len(sys.argv)
if argc < 3:
usage()
cmd = sys.argv[1]
repos_dir = to_str(svn.core.svn_path_canonicalize(to_bytes(sys.argv[2])))
try:
expected_args = cmd_list[cmd]
except KeyError:
usage()
if argc < (expected_args + 3):
usage()
elif argc > expected_args + 4:
usage()
elif argc == (expected_args + 4):
config_fname = sys.argv[expected_args + 3]
# Settle on a config file location, and open it.
if config_fname is None:
# Default to REPOS-DIR/conf/mailer.conf.
config_fname = os.path.join(repos_dir, 'conf', 'mailer.conf')
if not os.path.exists(config_fname):
# Okay. Look for 'mailer.conf' as a sibling of this script.
config_fname = os.path.join(os.path.dirname(sys.argv[0]), 'mailer.conf')
if not os.path.exists(config_fname):
raise MissingConfig(config_fname)
failed = svn.core.run_app(main, cmd, config_fname, repos_dir,
sys.argv[3:3+expected_args])
sys.exit(1 if failed else 0)
# ------------------------------------------------------------------------
# TODO
#
# * add configuration options
# - each group defines delivery info:
# o whether to set Reply-To and/or Mail-Followup-To
# (btw: it is legal do set Reply-To since this is the originator of the
# mail; i.e. different from MLMs that munge it)
# - each group defines content construction:
# o max size of diff before trimming
# o max size of entire commit message before truncation
# - per-repository configuration
# o extra config living in repos
# o optional, non-mail log file
# o look up authors (username -> email; for the From: header) in a
# file(s) or DBM
# * get rid of global functions that should properly be class methods
#
# For Emacs, we want to move towards the standard 4-space indent. It
# inspects the current formatting of this file, and sets 2-space.
# Override that with a 4-space indent.
#
# Local Variables:
# python-indent-offset: 4
# End:
#