From eb6d643b0c0924170a1b581a185cff71a569c4f8 Mon Sep 17 00:00:00 2001
From: Miklos Vajna <vmiklos@frugalware.org>
Date: Sun, 19 Oct 2008 03:12:54 +0200
Subject: initial version

---
 darcs/darcs-fast-export.py | 106 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100755 darcs/darcs-fast-export.py

diff --git a/darcs/darcs-fast-export.py b/darcs/darcs-fast-export.py
new file mode 100755
index 0000000..8a8b529
--- /dev/null
+++ b/darcs/darcs-fast-export.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python
+
+from xml.dom import minidom
+import os
+import sys
+import gzip
+import time
+import shutil
+
+def __get_zone():
+	now = time.localtime()
+	if time.daylight and now[-1]:
+		offset = time.altzone
+	else:
+		offset = time.timezone
+	hours, minutes = divmod(abs(offset), 3600)
+	if offset > 0:
+		sign = "-"
+	else:
+		sign = "+"
+	return sign, hours, minutes
+
+def get_zone_str():
+	sign, hours, minutes = __get_zone()
+	return "%s%02d%02d" % (sign, hours, minutes // 60)
+
+def get_zone_int():
+	sign, hours, minutes = __get_zone()
+	ret = hours*3600+minutes*60
+	if sign == "-":
+		ret *= -1
+	return ret
+
+def get_patchname(patch):
+	ret = []
+	if patch.attributes['inverted'] == 'True':
+		ret.append("UNDO: ")
+	ret.append(i.getElementsByTagName("name")[0].childNodes[0].data)
+	lines = i.getElementsByTagName("comment")
+	if lines:
+		ret.extend(["\n", lines[0].childNodes[0].data])
+	return "".join(ret)
+
+def get_author(patch):
+	author = patch.attributes['author'].value
+	if not ">" in author:
+		author = "%s <%s>" % (author.split('@')[0], author)
+	return author
+
+origin = os.path.abspath(sys.argv[1])
+working = "%s.darcs" % origin
+
+# get list of patches from darcs
+sock = os.popen("darcs changes --xml --reverse --repo %s" % origin)
+buf = sock.read()
+sock.close()
+xmldoc = minidom.parseString(buf)
+
+# init the tmp darcs repo
+os.mkdir(working)
+cwd = os.getcwd()
+os.chdir(working)
+os.system("darcs init --old-fashioned-inventory")
+
+count = 0
+for i in xmldoc.getElementsByTagName('patch'):
+	# apply the patch
+	buf = ["\nNew patches:\n"]
+	sock = gzip.open("%s/_darcs/patches/%s" % (origin, i.attributes['hash'].value))
+	buf.append(sock.read())
+	sock.close()
+	sock = os.popen("darcs changes --context")
+	buf.append(sock.read())
+	sock.close()
+	sock = os.popen("darcs apply --allow-conflicts >/dev/null", "w")
+	sock.write("".join(buf))
+	sock.close()
+	message = get_patchname(i)
+	# export the commit
+	print "commit refs/heads/master"
+	print "mark :%s" % count
+	date = int(time.mktime(time.strptime(i.attributes['date'].value, "%Y%m%d%H%M%S"))) + get_zone_int()
+	print "committer %s %s %s" % (get_author(i), date, get_zone_str())
+	print "data %d\n%s" % (len(message), message)
+	# export the files
+	print "deleteall"
+	for (root, dirs, files) in os.walk ("."):
+		for f in files:
+			j = os.path.normpath(os.path.join(root, f))
+			if j.startswith("_darcs") or "-darcs-backup" in j:
+				continue
+			sock = open(j)
+			buf = sock.read()
+			sock.close()
+			# fixme
+			print "M 644 inline %s" % j
+			print "data %s\n%s" % (len(buf), buf)
+	if message[:4] == "TAG ":
+		print "tag %s" % message[4:]
+		print "from :%s" % count
+		print "tagger %s %s %s" % (get_author(i), date, get_zone_str())
+		print "data %d\n%s" % (len(message[4:]), message[4:])
+	count += 1
+
+os.chdir(cwd)
+shutil.rmtree(working)
-- 
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