turn a pile of RCS files into a ChangeLog file

Demo/pdist/makechangelog.py

+#! /usr/local/bin/python
+
+"""Turn a pile of RCS log output into ChangeLog file entries.
+
+"""
+
+import sys
+import string
+import regex
+import getopt
+import time
+
+def main():
+    args = sys.argv[1:]
+    opts, args = getopt.getopt(args, 'p:')
+    prefix = ''
+    for o, a in opts:
+	if p == '-p': prefix = a
+
+    f = sys.stdin
+    allrevs = []
+    while 1:
+	file = getnextfile(f)
+	if not file: break
+	revs = []
+	while 1:
+	    rev = getnextrev(f, file)
+	    if not rev:
+		break
+	    revs.append(rev)
+	if revs:
+	    allrevs[len(allrevs):] = revs
+    allrevs.sort()
+    allrevs.reverse()
+    for rev in allrevs:
+	formatrev(rev, prefix)
+
+parsedateprog = regex.compile(
+    '^date: \([0-9]+\)/\([0-9]+\)/\([0-9]+\) ' +
+    '\([0-9]+\):\([0-9]+\):\([0-9]+\);  author: \([^ ;]+\)')
+
+authormap = {
+    'guido': 'Guido van Rossum  <guido@cnri.reston.va.us>',
+    'jack': 'Jack Jansen  <jack@cwi.nl>',
+    'sjoerd': 'Sjoerd Mullender  <sjoerd@cwi.nl>',
+    }
+
+def formatrev(rev, prefix):
+    dateline, file, revline, log = rev
+    if parsedateprog.match(dateline) >= 0:
+	fields = parsedateprog.group(1, 2, 3, 4, 5, 6)
+	author = parsedateprog.group(7)
+	if authormap.has_key(author): author = authormap[author]
+	tfields = map(string.atoi, fields) + [0, 0, 0]
+	tfields[5] = tfields[5] - time.timezone
+	t = time.mktime(tuple(tfields))
+	print time.ctime(t), '', author
+	words = string.split(log)
+	words[:0] = ['*', prefix + file + ':']
+	maxcol = 72-8
+	col = maxcol
+	for word in words:
+	    if col > 0 and col + len(word) >= maxcol:
+		print
+		print '\t' + word,
+		col = -1
+	    else:
+		print word,
+	    col = col + 1 + len(word)
+	print
+	print
+
+startprog = regex.compile("^Working file: \(.*\)$")
+
+def getnextfile(f):
+    while 1:
+	line = f.readline()
+	if not line: return None
+	if startprog.match(line) >= 0:
+	    file = startprog.group(1)
+	    # Skip until first revision
+	    while 1:
+		line = f.readline()
+		if not line: return None
+		if line[:10] == '='*10: return None
+		if line[:10] == '-'*10: break
+##		print "Skipped", line,
+	    return file
+##	else:
+##	    print "Ignored", line,
+
+def getnextrev(f, file):
+    # This is called when we are positioned just after a '---' separator
+    revline = f.readline()
+    dateline = f.readline()
+    log = ''
+    while 1:
+	line = f.readline()
+	if not line: break
+	if line[:10] == '='*10:
+	    # Ignore the *last* log entry for each file since it
+	    # is the revision since which we are logging.
+	    return None
+	if line[:10] == '-'*10: break
+	log = log + line
+    return dateline, file, revline, log
+
+if __name__ == '__main__':
+    main()