125 lines
3.0 KiB
Python
125 lines
3.0 KiB
Python
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#! /usr/bin/env python
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"""Consolidate a bunch of CVS or RCS logs read from stdin.
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Input should be the output of a CVS or RCS logging command, e.g.
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cvs log -rrelease14
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which dumps all log messages from release1.4 upwards (assuming that
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release 1.4 was tagged with tag 'release14').
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This collects all the revision records and outputs them sorted by date
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rather than by file, collapsing duplicate revision record, i.e.,
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records with the same message for different files.
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The -t option causes it to truncate (discard) the last revision log
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entry; this is useful when using something like the above cvs log
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command, which shows the revisions including the given tag, while you
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probably want everything *since* that tag.
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XXX This code was created by reverse engineering CVS 1.9 and RCS 5.7.
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"""
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import os, sys, getopt, string, re
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sep1 = '='*77 + '\n' # file separator
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sep2 = '-'*28 + '\n' # revision separator
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def main():
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"""Main program"""
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truncate_last = 0
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opts, args = getopt.getopt(sys.argv[1:], "-t")
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for o, a in opts:
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if o == '-t':
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truncate_last = 1
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database = []
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while 1:
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chunk = read_chunk(sys.stdin)
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if not chunk:
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break
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records = digest_chunk(chunk)
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if truncate_last:
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del records[-1]
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database[len(database):] = records
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database.sort()
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database.reverse()
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format_output(database)
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def read_chunk(fp):
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"""Read a chunk -- data for one file, ending with sep1.
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Split the chunk in parts separated by sep2.
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"""
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chunk = []
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lines = []
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while 1:
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line = fp.readline()
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if not line:
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break
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if line == sep1:
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if lines:
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chunk.append(lines)
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break
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if line == sep2:
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if lines:
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chunk.append(lines)
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lines = []
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else:
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lines.append(line)
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return chunk
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def digest_chunk(chunk):
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"""Digest a chunk -- extrach working file name and revisions"""
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lines = chunk[0]
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key = 'Working file:'
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keylen = len(key)
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for line in lines:
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if line[:keylen] == key:
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working_file = string.strip(line[keylen:])
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break
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else:
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working_file = None
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records = []
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for lines in chunk[1:]:
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revline = lines[0]
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dateline = lines[1]
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text = lines[2:]
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words = string.split(dateline)
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if len(words) >= 3 and words[0] == 'date:':
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dateword = words[1]
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timeword = words[2]
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if timeword[-1:] == ';':
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timeword = timeword[:-1]
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date = dateword + ' ' + timeword
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else:
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date = None
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text.insert(0, revline)
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words = string.split(revline)
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if len(words) >= 2 and words[0] == 'revision':
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rev = words[1]
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else:
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rev = None
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text.insert(0, revline)
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records.append((date, working_file, rev, text))
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return records
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def format_output(database):
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prevtext = None
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prev = []
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database.append((None, None, None, None)) # Sentinel
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for (date, working_file, rev, text) in database:
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if text != prevtext:
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if prev:
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print sep2,
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for (date, working_file, rev) in prev:
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print date, working_file
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sys.stdout.writelines(prevtext)
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prev = []
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prev.append((date, working_file, rev))
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prevtext = text
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main()
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