#!/usr/bin/env python
# See usage() for details, or run with --help option.
#
# .-------------------------------------------------.
# | "An ad hoc format deserves an ad hoc parser." |
# `-------------------------------------------------'
#
# Some Subversion project log messages include parseable data to help
# track who's contributing what. The exact syntax is described in
# hacking.html#crediting, but here's an example, indented by three
# spaces, i.e., the "Patch by:" starts at the beginning of a line:
#
# Patch by: David Anderson <david.anderson@calixo.net>
# <justin@erenkrantz.com>
# me
# (I wrote the regression tests.)
# Found by: Phineas T. Phinder <phtph@ph1nderz.com>
# Suggested by: Snosbig Q. Ptermione <sqptermione@example.com>
# Review by: Justin Erenkrantz <justin@erenkrantz.com>
# rooneg
# (They caught an off-by-one error in the main loop.)
#
# This is a pathological example, but it shows all the things we might
# need to parse. We need to:
#
# - Detect the officially-approved "WORD by: " fields.
# - Grab every name (one per line) in each field.
# - Handle names in various formats, unifying where possible.
# - Expand "me" to the committer name for this revision.
# - Associate a parenthetical aside following a field with that field.
#
# NOTES: You might be wondering, why not take 'svn log --xml' input?
# Well, that would be the Right Thing to do, but in practice this was
# a lot easier to whip up for straight 'svn log' output. I'd have no
# objection to it being rewritten to take XML input.
import os
import sys
import re
import shutil
import getopt
from urllib import quote as url_encode
# Pretend we have true booleans on older python versions
try:
True
except:
True = 1
False = 0
# Warnings and errors start with these strings. They are typically
# followed by a colon and a space, as in "%s: " ==> "WARNING: ".
warning_prefix = 'WARNING'
error_prefix = 'ERROR'
def complain(msg, fatal=False):
"""Print MSG as a warning, or if FATAL is true, print it as an error
and exit."""
prefix = 'WARNING: '
if fatal:
prefix = 'ERROR: '
sys.stderr.write(prefix + msg + '\n')
if fatal:
sys.exit(1)
def html_spam_guard(addr):
"""Return a spam-protected version of email ADDR that renders the
same in HTML as the original address."""
return "".join(map(lambda x: "<span>&#%d;</span>" % ord(x), addr))
def escape_html(str):
"""Return an HTML-escaped version of STR."""
return str.replace('&', '&').replace('<', '<').replace('>', '>')
_spam_guard_in_html_block_re = re.compile(r'<([^&]*@[^&]*)>')
def _spam_guard_in_html_block_func(m):
return "<%s>" % html_spam_guard(m.group(1))
def spam_guard_in_html_block(str):
"""Take a block of HTML data, and run html_spam_guard() on parts of it."""
return _spam_guard_in_html_block_re.subn(_spam_guard_in_html_block_func,
str)[0]
def html_header(title):
"""Write HTML file header.
TITLE parameter is expected to already by HTML-escaped if needed."""
s = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"\n'
s += ' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">\n'
s += '<html><head>\n'
s += '<meta http-equiv="Content-Type"'
s += ' content="text/html; charset=UTF-8" />\n'
s += '<title>%s</title>\n' % title
s += '</head>\n\n'
s += '<body style="text-color: black; background-color: white">\n\n'
s += '<h1 style="text-align: center">%s</h1>\n\n' % title
s += '<hr />\n\n'
return s
def html_footer():
return '\n</body>\n</html>\n'
class Contributor:
# Map contributor names to contributor instances, so that there
# exists exactly one instance associated with a given name.
# Fold names with email addresses. That is, if we see someone
# listed first with just an email address, but later with a real
# name and that same email address together, we create only one
# instance, and store it under both the email and the real name.
all_contributors = { }
# See __hash__() for why this is necessary.
hash_value = 1
def __init__(self, username, real_name, email):
"""Instantiate a contributor. Don't use this to generate a
Contributor for an external caller, though, use .get() instead."""
self.real_name = real_name
self.username = username
self.email = email
self.is_committer = False # Assume not until hear otherwise.
self.is_full_committer = False # Assume not until hear otherwise.
# Map verbs (e.g., "Patch", "Suggested", "Review") to lists of
# LogMessage objects. For example, the log messages stored under
# "Patch" represent all the revisions for which this contributor
# contributed a patch.
self.activities = { }
# Sigh.
self.unique_hash_value = Contributor.hash_value
Contributor.hash_value += 1
def add_activity(self, field_name, log):
"""Record that this contributor was active in FIELD_NAME in LOG."""
logs = self.activities.get(field_name)
if not logs:
logs = [ ]
self.activities[field_name] = logs
if not log in logs:
logs.append(log)
def get(username, real_name, email):
"""If this contributor is already registered, just return it;
otherwise, register it then return it. Hint: use parse() to
generate the arguments."""
c = None
for key in username, real_name, email:
if key and Contributor.all_contributors.has_key(key):
c = Contributor.all_contributors[key]
break
# If we didn't get a Contributor, create one now.
if not c:
c = Contributor(username, real_name, email)
# If we know identifying information that the Contributor lacks,
# then give it to the Contributor now.
if username:
if not c.username:
c.username = username
Contributor.all_contributors[username] = c
if real_name:
if not c.real_name:
c.real_name = real_name
Contributor.all_contributors[real_name] = c
if email:
if not c.email:
c.email = email
Contributor.all_contributors[email] = c
# This Contributor has never been in better shape; return it.
return c
get = staticmethod(get)
def score(self):
"""Return a contribution score for this contributor."""
# Right now we count a patch as 2, anything else as 1.
score = 0
for activity in self.activities.keys():
if activity == 'Patch':
score += len(self.activities[activity]) * 2
else:
score += len(self.activities[activity])
return score
def score_str(self):
"""Return a contribution score HTML string for this contributor."""
patch_score = 0
other_score = 0
for activity in self.activities.keys():
if activity == 'Patch':
patch_score += len(self.activities[activity])
else:
other_score += len(self.activities[activity])
if patch_score == 0:
patch_str = ""
elif patch_score == 1:
patch_str = "1 patch"
else:
patch_str = "%d patches" % patch_score
if other_score == 0:
other_str = ""
elif other_score == 1:
other_str = "1 non-patch"
else:
other_str = "%d non-patches" % other_score
if patch_str:
if other_str:
return ", ".join((patch_str, other_str))
else:
return patch_str
else:
return other_str
def __cmp__(self, other):
if self.is_full_committer and not other.is_full_committer:
return 1
if other.is_full_committer and not self.is_full_committer:
return -1
result = cmp(self.score(), other.score())
if result == 0:
return cmp(self.big_name(), other.big_name())
else:
return 0 - result
def __hash__(self):
"""See LogMessage.__hash__() for why this exists."""
return self.hash_value
def parse(name):
"""Parse NAME, which can be
- A committer username, or
- A space-separated real name, or
- A space-separated real name followed by an email address in
angle brackets, or
- Just an email address in angle brackets.
Return a tuple of (committer_username, real_name, email_address)
any of which can be None if not available in NAME."""
username = None
real_name = None
email = None
name_components = name.split()
if len(name_components) == 1:
name = name_components[0] # Effectively, name = name.strip()
if name[0] == '<' and name[-1] == '>':
email = name[1:-1]
elif name.find('@') != -1:
email = name
else:
username = name
elif name_components[-1][0] == '<' and name_components[-1][-1] == '>':
real_name = ' '.join(name_components[0:-1])
email = name_components[-1][1:-1]
else:
real_name = ' '.join(name_components)
return username, real_name, email
parse = staticmethod(parse)
def canonical_name(self):
"""Return a canonical name for this contributor. The canonical
name may or may not be based on the contributor's actual email
address.
The canonical name will not contain filename-unsafe characters.
This method is guaranteed to return the same canonical name every
time only if no further contributions are recorded from this
contributor after the first call. This is because a contribution
may bring a new form of the contributor's name, one which affects
the algorithm used to construct canonical names."""
retval = None
if self.username:
retval = self.username
elif self.email:
# Take some rudimentary steps to shorten the email address, to
# make it more manageable. If this is ever discovered to result
# in collisions, we can always just use to the full address.
try:
at_posn = self.email.index('@')
first_dot_after_at = self.email.index('.', at_posn)
retval = self.email[0:first_dot_after_at]
except ValueError:
retval = self.email
elif self.real_name:
# Last resort: construct canonical name based on real name.
retval = ''.join(self.real_name.lower().split(' '))
if retval is None:
complain('Unable to construct a canonical name for Contributor.', True)
return url_encode(retval, safe="!#$&'()+,;<=>@[]^`{}~")
def big_name(self, html=False):
"""Return as complete a name as possible for this contributor."""
name_bits = []
if self.real_name:
if html:
name_bits.append(escape_html(self.real_name))
else:
name_bits.append(self.real_name)
if self.email:
if not self.real_name and not self.username:
name_bits.append(self.email)
elif html:
name_bits.append("<%s>" % html_spam_guard(self.email))
else:
name_bits.append("<%s>" % self.email)
if self.username:
if not self.real_name and not self.email:
name_bits.append(self.username)
else:
name_bits.append("(%s)" % self.username)
return " ".join(name_bits)
def __str__(self):
s = 'CONTRIBUTOR: '
s += self.big_name()
s += "\ncanonical name: '%s'" % self.canonical_name()
if len(self.activities) > 0:
s += '\n '
for activity in self.activities.keys():
val = self.activities[activity]
s += '[%s:' % activity
for log in val:
s += ' %s' % log.revision
s += ']'
return s
def html_out(self, revision_url_pattern, filename):
"""Create an HTML file named FILENAME, showing all the revisions in which
this contributor was active."""
out = open(filename, 'w')
out.write(html_header(self.big_name(html=True)))
unique_logs = { }
sorted_activities = self.activities.keys()
sorted_activities.sort()
out.write('<div class="h2" id="activities" title="activities">\n\n')
out.write('<table border="1">\n')
out.write('<tr>\n')
for activity in sorted_activities:
out.write('<td>%s</td>\n\n' % activity)
out.write('</tr>\n')
out.write('<tr>\n')
for activity in sorted_activities:
out.write('<td>\n')
first_activity = True
for log in self.activities[activity]:
s = ',\n'
if first_activity:
s = ''
first_activity = False
out.write('%s<a href="#%s">%s</a>' % (s, log.revision, log.revision))
unique_logs[log] = True
out.write('</td>\n')
out.write('</tr>\n')
out.write('</table>\n\n')
out.write('</div>\n\n')
sorted_logs = unique_logs.keys()
sorted_logs.sort()
for log in sorted_logs:
out.write('<hr />\n')
out.write('<div class="h3" id="%s" title="%s">\n' % (log.revision,
log.revision))
out.write('<pre>\n')
if revision_url_pattern:
revision_url = revision_url_pattern % log.revision[1:]
revision = '<a href="%s">%s</a>' \
% (escape_html(revision_url), log.revision)
else:
revision = log.revision
out.write('<b>%s | %s | %s</b>\n\n' % (revision,
escape_html(log.committer),
escape_html(log.date)))
out.write(spam_guard_in_html_block(escape_html(log.message)))
out.write('</pre>\n')
out.write('</div>\n\n')
out.write('<hr />\n')
out.write(html_footer())
out.close()
class Field:
"""One field in one log message."""
def __init__(self, name, alias = None):
# The name of this field (e.g., "Patch", "Review", etc).
self.name = name
# An alias for the name of this field (e.g., "Reviewed").
self.alias = alias
# A list of contributor objects, in the order in which they were
# encountered in the field.
self.contributors = [ ]
# Any parenthesized asides immediately following the field. The
# parentheses and trailing newline are left on. In theory, this
# supports concatenation of consecutive asides. In practice, the
# parser only detects the first one anyway, because additional
# ones are very uncommon and furthermore by that point one should
# probably be looking at the full log message.
self.addendum = ''
def add_contributor(self, contributor):
self.contributors.append(contributor)
def add_endum(self, addendum):
self.addendum += addendum
def __str__(self):
s = 'FIELD: %s (%d contributors)\n' % (self.name, len(self.contributors))
for contributor in self.contributors:
s += str(contributor) + '\n'
s += self.addendum
return s
class LogMessage:
# Maps revision strings (e.g., "r12345") onto LogMessage instances,
# holding all the LogMessage instances ever created.
all_logs = { }
def __init__(self, revision, committer, date):
"""Instantiate a log message. All arguments are strings,
including REVISION, which should retain its leading 'r'."""
self.revision = revision
self.committer = committer
self.date = date
self.message = ''
# Map field names (e.g., "Patch", "Review", "Suggested") onto
# Field objects.
self.fields = { }
if LogMessage.all_logs.has_key(revision):
complain("Revision '%s' seen more than once" % revision, True)
LogMessage.all_logs[revision] = self
def add_field(self, field):
self.fields[field.name] = field
def accum(self, line):
"""Accumulate one more line of raw message."""
self.message += line
def __cmp__(self, other):
"""Compare two log messages by revision number, for sort().
Return -1, 0 or 1 depending on whether a > b, a == b, or a < b.
Note that this is reversed from normal sorting behavior, but it's
what we want for reverse chronological ordering of revisions."""
a = int(self.revision[1:])
b = int(other.revision[1:])
if a > b: return -1
if a < b: return 1
else: return 0
def __hash__(self):
"""I don't really understand why defining __cmp__() but not
__hash__() renders an object type unfit to be a dictionary key,
especially in light of the recommendation that if a class defines
mutable objects and implements __cmp__() or __eq__(), then it
should not implement __hash__(). See these for details:
http://mail.python.org/pipermail/python-dev/2004-February/042580.html
http://mail.python.org/pipermail/python-bugs-list/2003-December/021314.html
In the meantime, I think it's safe to use the revision as a hash value."""
return int(self.revision[1:])
def __str__(self):
s = '=' * 15
header = ' LOG: %s | %s ' % (self.revision, self.committer)
s += header
s += '=' * 15
s += '\n'
for field_name in self.fields.keys():
s += str(self.fields[field_name]) + '\n'
s += '-' * 15
s += '-' * len(header)
s += '-' * 15
s += '\n'
return s
### Code to parse the logs. ##
log_separator = '-' * 72 + '\n'
log_header_re = re.compile\
('^(r[0-9]+) \| ([^|]+) \| ([^|]+) \| ([0-9]+)[^0-9]')
field_re = re.compile('^(Patch|Review(ed)?|Suggested|Found) by:\s*(.*)')
field_aliases = { 'Reviewed' : 'Review' }
parenthetical_aside_re = re.compile('^\(.*\)\s*$')
def graze(input):
just_saw_separator = False
while True:
line = input.readline()
if line == '': break
if line == log_separator:
if just_saw_separator:
sys.stderr.write('Two separators in a row.\n')
sys.exit(1)
else:
just_saw_separator = True
num_lines = None
continue
else:
if just_saw_separator:
m = log_header_re.match(line)
if not m:
sys.stderr.write('Could not match log message header.\n')
sys.stderr.write('Line was:\n')
sys.stderr.write("'%s'\n" % line)
sys.exit(1)
else:
log = LogMessage(m.group(1), m.group(2), m.group(3))
num_lines = int(m.group(4))
just_saw_separator = False
line = input.readline()
# Handle 'svn log -v' by waiting for the blank line.
while line != '\n':
line = input.readline()
# Parse the log message.
field = None
while num_lines > 0:
line = input.readline()
log.accum(line)
m = field_re.match(line)
if m:
# We're on the first line of a field. Parse the field.
while m:
if not field:
ident = m.group(1)
if field_aliases.has_key(ident):
field = Field(field_aliases[ident], ident)
else:
field = Field(ident)
# Each line begins either with "WORD by:", or with whitespace.
in_field_re = re.compile('^('
+ (field.alias or field.name)
+ ' by:\s+|\s+)(\S.*)+')
m = in_field_re.match(line)
user, real, email = Contributor.parse(m.group(2))
if user == 'me':
user = log.committer
c = Contributor.get(user, real, email)
c.add_activity(field.name, log)
field.add_contributor(c)
line = input.readline()
log.accum(line)
num_lines -= 1
m = in_field_re.match(line)
if not m:
m = field_re.match(line)
if not m:
aside_match = parenthetical_aside_re.match(line)
if aside_match:
field.add_endum(line)
log.add_field(field)
field = None
num_lines -= 1
continue
index_introduction = '''
<p>The following list of contributors and their contributions is meant
to help us keep track of whom to consider for commit access. The list
was generated from "svn log" output by <a
href="http://svn.collab.net/repos/svn/trunk/tools/dev/contribulyze.py"
>contribulyze.py</a>, which looks for log messages that use the <a
href="http://subversion.tigris.org/hacking.html#crediting">special
contribution format</a>.</p>
<p><i>Please do not use this list as a generic guide to who has
contributed what to Subversion!</i> It omits existing full committers,
for example, because they are irrelevant to our search for new
committers. Also, it merely counts changes, it does not evaluate
them. To truly understand what someone has contributed, you have to
read their changes in detail. This page can only assist human
judgement, not substitute for it.</p>
'''
def drop(revision_url_pattern):
# Output the data.
#
# The data structures are all linked up nicely to one another. You
# can get all the LogMessages, and each LogMessage contains all the
# Contributors involved with that commit; likewise, each Contributor
# points back to all the LogMessages it contributed to.
#
# However, the HTML output is pretty simple right now. It's not take
# full advantage of all that cross-linking. For each contributor, we
# just create a file listing all the revisions contributed to; and we
# build a master index of all contributors, each name being a link to
# that contributor's individual file. Much more is possible... but
# let's just get this up and running first.
for key in LogMessage.all_logs.keys():
# You could print out all log messages this way, if you wanted to.
pass
# print LogMessage.all_logs[key]
detail_subdir = "detail"
if not os.path.exists(detail_subdir):
os.mkdir(detail_subdir)
index = open('index.html', 'w')
index.write(html_header('Contributors'))
index.write(index_introduction)
index.write('<ol>\n')
# The same contributor appears under multiple keys, so uniquify.
seen_contributors = { }
# Sorting alphabetically is acceptable, but even better would be to
# sort by number of contributions, so the most active people appear at
# the top -- that way we know whom to look at first for commit access
# proposals.
sorted_contributors = Contributor.all_contributors.values()
sorted_contributors.sort()
for c in sorted_contributors:
if not seen_contributors.has_key(c):
if c.score() > 0:
if c.is_full_committer:
# Don't even bother to print out full committers. They are
# a distraction from the purposes for which we're here.
continue
else:
committerness = ''
if c.is_committer:
committerness = ' (partial committer)'
urlpath = "%s/%s.html" % (detail_subdir, c.canonical_name())
fname = os.path.join(detail_subdir, "%s.html" % c.canonical_name())
index.write('<li><p><a href="%s">%s</a> [%s]%s</p></li>\n'
% (url_encode(urlpath),
c.big_name(html=True),
c.score_str(), committerness))
c.html_out(revision_url_pattern, fname)
seen_contributors[c] = True
index.write('</ol>\n')
index.write(html_footer())
index.close()
def process_committers(committers):
"""Read from open file handle COMMITTERS, which should be in
the same format as the Subversion 'COMMITTERS' file. Create
Contributor objects based on the contents."""
line = committers.readline()
while line != 'Blanket commit access:\n':
line = committers.readline()
in_full_committers = True
matcher = re.compile('(\S+)\s+([^\(\)]+)\s+(\([^()]+\)){0,1}')
line = committers.readline()
while line:
# Every @-sign we see after this point indicates a committer line.
if line == 'Commit access for specific areas:\n':
in_full_committers = False
elif line.find('@') >= 0:
line = line.strip()
m = matcher.match(line)
user = m.group(1)
real_and_email = m.group(2).strip()
ignored, real, email = Contributor.parse(real_and_email)
c = Contributor.get(user, real, email)
c.is_committer = True
c.is_full_committer = in_full_committers
line = committers.readline()
def usage():
print 'USAGE: %s [-C COMMITTERS_FILE] < SVN_LOG_OR_LOG-V_OUTPUT' \
% os.path.basename(sys.argv[0])
print ''
print 'Create HTML files in the current directory, rooted at index.html,'
print 'in which you can browse to see who contributed what.'
print ''
print 'The log input should use the contribution-tracking format defined'
print 'in http://subversion.tigris.org/hacking.html#crediting.'
print ''
print 'Options:'
print ''
print ' -h, -H, -?, --help Print this usage message and exit'
print ' -C FILE Use FILE as the COMMITTERS file'
print ' -U URL Use URL as a Python interpolation pattern to'
print ' generate URLs to link revisions to some kind'
print ' of web-based viewer (e.g. ViewCVS). The'
print ' interpolation pattern should contain exactly'
print ' one format specifier, \'%s\', which will be'
print ' replaced with the revision number.'
print ''
def main():
try:
opts, args = getopt.getopt(sys.argv[1:], 'C:U:hH?', [ 'help' ])
except getopt.GetoptError, e:
complain(str(e) + '\n\n')
usage()
sys.exit(1)
# Parse options.
revision_url_pattern = None
for opt, value in opts:
if opt in ('--help', '-h', '-H', '-?'):
usage()
sys.exit(0)
elif opt == '-C':
process_committers(open(value))
elif opt == '-U':
revision_url_pattern = value
# Gather the data.
graze(sys.stdin)
# Output the data.
drop(revision_url_pattern)
if __name__ == '__main__':
main()
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