add hg and python

1 files changed, 109 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Demo/pdist/makechangelog.py b/sys/src/cmd/python/Demo/pdist/makechangelog.py
new file mode 100755
index 000000000..1ffa5880b
--- /dev/null
+++ b/sys/src/cmd/python/Demo/pdist/makechangelog.py
@@ -0,0 +1,109 @@
+#! /usr/bin/env python
+
+"""Turn a pile of RCS log output into ChangeLog file entries.
+
+"""
+
+import sys
+import string
+import re
+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 = re.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 = re.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()