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#!/usr/bin/env python
# script to parse svn log outputs from ghostpcl and gs
# and merge them into a single list for time-based reference
# run from the top level of the ghostpcl source tree
# may be brittle as it's based on parsing human-readable output.
import os, string
import sys
SVN_CMD = 'svn log -q'
SVN_GS_REPOS = 'svn+ssh://svn.ghostscript.com/svn/ghostscript/trunk/gs'
SVN_PCL_REPOS = 'svn+ssh://svn.ghostscript.com/var/lib/svn-private/ghostpcl'
def parse(log, entries, module=None):
'''parse the output of SVN_CMD and dump the results
as tuples in the entries global'''
if not module: module = ''
for line in log.readlines():
if line[0] != 'r': continue
fields = line.split('|')
fields = map(string.strip, fields)
rev = fields[0][1:] # strip the initial 'r'
author = fields[1]
date = fields[2]
entries.append((date, rev, author, module))
def report(entries):
'print out the results'
# Every ghostscript revision creates a ghostpcl revision as
# well, during the period we've had an svn:external for it
last_gs_rev = 0
last_pcl_rev = 0
tab = reduce(max, [len(entry[1]) for entry in entries])
for entry in entries:
date = entry[0]
rev = entry[1]
author = entry[2]
module = entry[3]
if module == 'ghostscript':
last_gs_rev = int(rev)
if last_pcl_rev >= 2609:
rev = str(last_pcl_rev) + '+' + rev
else:
continue
elif module == 'ghostpcl':
last_pcl_rev = int(rev)
if last_pcl_rev >= 2609:
rev = rev + '+' + str(last_gs_rev)
pad = tab - len(rev)
print rev, ' ' * pad, date, author
if __name__ == '__main__':
sys.stderr.write('Downloading logs. This may take a while...\n')
# array to hold the revision data
entries = []
log = os.popen(SVN_CMD + ' ' + SVN_PCL_REPOS)
parse(log, entries, 'ghostpcl')
log.close()
log = os.popen(SVN_CMD + ' ' + SVN_GS_REPOS)
parse(log, entries, 'ghostscript')
log.close()
# sort (by date, since that element is first)
entries.sort()
report(entries)
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