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#!/usr/bin/python
################################################################################
# SVN Log to ChangeLog generator for Release Notes
#
# Generates list of changes in HTML for ChangeLog
# from SVN Log in XML format. You typically generate the log with
# a command such as:
# svn log -v -r 1234:HEAD > svnlog-1234:HEAD.log.xml
# The command must be executed in the root directory of Toolkit project,
# either in the trunk or in the proper branch. The converter is then
# used as follows:
# ./build/bin/svnlog-to-rn.py svnlog-1234:HEAD.log.xml
#
# The ChangeLog generator will strip away any merges that begin with
# "Merged [...] from trunk to x.x branch."
#
# The generator will handle the following markup:
# - Changeset tags such as [1234] to links to dev.itmill.com/changeset/1234
# - Ticket references such as #1234 to links to dev.itmill.com/ticket/1234
# - If ticket reference does not have explanation in parentheses,
# the script will fetch the summary of the ticket from Trac and
# add it in parentheses after the reference, such as:
# "fixes #1234 (A nasty bug I found)".
#
# Requirements:
# - Xalan
################################################################################
import sys,re,os,httplib,urllib
################################################################################
# Convert XML to XHTML
# - The transformation includes various relevent information
# and does basic formatting
################################################################################
# Determine path to XSLT file
pathToScript = sys.argv[0]
sloc = pathToScript.rfind("/")
pathToScript = pathToScript[:sloc]
if len(sys.argv) != 2:
print "Usage: svnlog-to-rn.py <logfile.xml>"
print "Read the svnlog-to-rn.py header for more info."
sys.exit(1)
# Open Xalan
filename = sys.argv[1]
fin = open(filename, "r")
(pout,pin) = os.popen2("xalan -xsl %s/svnlog-to-rn.xsl" % (pathToScript))
# Preprocessing before feeding to XSLT Processor
lines = fin.readlines()
out = ""
for line in lines:
if line.find("action") != -1:
line = line.replace(r'>[^<]+/', '')
#print line,
pout.write(line)
pout.close()
################################################################################
# Helper functions for postprocessing
################################################################################
# Retrieves summary string with HTTP
def fetchSummary(ticketno):
params = urllib.urlencode({'format': 'tab'})
conn = httplib.HTTPConnection("dev.itmill.com")
conn.request("GET", "/ticket/%d?%s" % (ticketno, params) )
response = conn.getresponse()
data = response.read()
conn.close()
lines = data.split("\n")
cols = lines[1].split("\t")
return cols[1]
# Adds summary to ticket number, unless the context already has it
def addSummary(m):
ticketnum = int(m.group(1))
context = m.group(2)
if re.match(" *\(", context):
# The context already has ticket summary
return "#%d%s" % (ticketnum, context)
summary = fetchSummary(ticketnum)
return "#%s (<i>%s</i>) %s" % (ticketnum, summary, context)
################################################################################
# Postprocessing for XSLT output
################################################################################
lines = pin.readlines()
for line in lines:
# Add ticket summary after ticket number, if missing
line = re.sub(r'#([0-9]+)(.*)', addSummary, line)
# Change ticket numbers to references to tickets
line = re.sub(r'#([0-9]+)', '#<a href="http://dev.itmill.com/ticket/\\1">\\1</a>', line)
# Change changeset numbers to references to changesets
#line = re.sub(r'\[([0-9]+)\]', '[<a href="http://dev.itmill.com/changeset/\\1">\\1</a>]', line)
# Remove prefix about merging
line = re.sub(r'Merged.+from trunk to [0-9]+.[0-9]+ branch: ', '', line)
print line,
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