--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hgext/churn.py Wed Jul 26 19:42:56 2006 -0400
@@ -0,0 +1,161 @@
+# churn.py - create a graph showing who changed the most lines
+#
+# Copyright 2006 Josef "Jeff" Sipek <jeffpc@josefsipek.net>
+#
+# This software may be used and distributed according to the terms
+# of the GNU General Public License, incorporated herein by reference.
+#
+#
+# Aliases map file format is simple one alias per line in the following
+# format:
+#
+# <alias email> <actual email>
+
+import time, sys, signal, os
+from mercurial import hg, mdiff, fancyopts, commands, ui, util, templater
+
+def __gather(ui, repo, node1, node2):
+ def dirtywork(f, mmap1, mmap2):
+ lines = 0
+
+ to = None
+ if mmap1:
+ to = repo.file(f).read(mmap1[f])
+ tn = None
+ if mmap2:
+ tn = repo.file(f).read(mmap2[f])
+
+ diff = mdiff.unidiff(to, "", tn, "", f).split("\n")
+
+ for line in diff:
+ if len(line) <= 0:
+ continue # skip EOF
+ if line[0] == " ":
+ continue # context line
+ if line[0:4] == "--- " or line[0:4] == "+++ ":
+ continue # begining of diff
+ if line[0:3] == "@@ ":
+ continue # info line
+
+ # changed lines
+ lines += 1
+
+ return lines
+
+ ##
+
+ lines = 0
+
+ changes = repo.changes(node1, node2, None, util.always)
+
+ modified, added, removed, deleted, unknown = changes
+
+ who = repo.changelog.read(node2)[1]
+ who = templater.email(who) # get the email of the person
+
+ mmap1 = repo.manifest.read(repo.changelog.read(node1)[0])
+ mmap2 = repo.manifest.read(repo.changelog.read(node2)[0])
+ for f in modified:
+ lines += dirtywork(f, mmap1, mmap2)
+
+ for f in added:
+ lines += dirtywork(f, None, mmap2)
+
+ for f in removed:
+ lines += dirtywork(f, mmap1, None)
+
+ for f in deleted:
+ lines += dirtywork(f, mmap1, mmap2)
+
+ for f in unknown:
+ lines += dirtywork(f, mmap1, mmap2)
+
+ return (who, lines)
+
+def gather_stats(ui, repo, amap):
+ stats = {}
+
+ cl = repo.changelog
+
+ for rev in range(1,cl.count()):
+ node2 = cl.node(rev)
+ node1 = cl.parents(node2)[0]
+
+ who, lines = __gather(ui, repo, node1, node2)
+
+ # remap the owner if possible
+ if amap.has_key(who):
+ ui.note("using '%s' alias for '%s'\n" % (amap[who], who))
+ who = amap[who]
+
+ if not stats.has_key(who):
+ stats[who] = 0
+ stats[who] += lines
+
+ ui.note("rev %d: %d lines by %s\n" % (rev, lines, who))
+
+ return stats
+
+def churn(ui, repo, aliases):
+ "Graphs the number of lines changed"
+
+ def pad(s, l):
+ if len(s) < l:
+ return s + " " * (l-len(s))
+ return s[0:l]
+
+ def graph(n, maximum, width, char):
+ n = int(n * width / float(maximum))
+
+ return char * (n)
+
+ def get_aliases(f):
+ aliases = {}
+
+ for l in f.readlines():
+ l = l.strip()
+ alias, actual = l.split(" ")
+ aliases[alias] = actual
+
+ return aliases
+
+ amap = {}
+ if aliases:
+ try:
+ f = open(aliases,"r")
+ except OSError, e:
+ print "Error: " + e
+ return
+
+ amap = get_aliases(f)
+ f.close()
+
+ os.chdir(repo.root)
+ stats = gather_stats(ui, repo, amap)
+
+ # make a list of tuples (name, lines) and sort it in descending order
+ ordered = stats.items()
+ ordered.sort(cmp=lambda x,y:cmp(x[1], y[1]))
+ ordered.reverse()
+
+ maximum = ordered[0][1]
+
+ ui.note("Assuming 80 character terminal\n")
+ width = 80 - 1
+
+ for i in ordered:
+ person = i[0]
+ lines = i[1]
+ print "%s %6d %s" % (pad(person, 20), lines,
+ graph(lines, maximum, width - 20 - 1 - 6 - 2 - 2, '*'))
+
+cmdtable = {
+ "churn":
+ (churn,
+ [('', 'aliases', '', 'file with email aliases')],
+ 'hg churn [-a file]'),
+}
+
+def reposetup(ui, repo):
+ pass
+