From ca4ace407c938d58c7fe33cb872b0705635b39cf Mon Sep 17 00:00:00 2001
From: ben <ben@2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109>
Date: Sun, 16 Jun 2002 07:12:39 +0000
Subject: Adapted everything to new exploded format

git-svn-id: http://svn.savannah.nongnu.org/svn/rdiff-backup/trunk@130 2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109
---
 rdiff-backup/rdiff_backup/FilenameMapping.py | 94 ++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 rdiff-backup/rdiff_backup/FilenameMapping.py

(limited to 'rdiff-backup/rdiff_backup/FilenameMapping.py')

diff --git a/rdiff-backup/rdiff_backup/FilenameMapping.py b/rdiff-backup/rdiff_backup/FilenameMapping.py
new file mode 100644
index 0000000..104519d
--- /dev/null
+++ b/rdiff-backup/rdiff_backup/FilenameMapping.py
@@ -0,0 +1,94 @@
+import re
+from log import *
+import Globals
+
+#######################################################################
+#
+# filename_mapping - used to coordinate related filenames
+#
+# For instance, some source filenames may contain characters not
+# allowed on the mirror end.  Also, if a source filename is very long
+# (say 240 characters), the extra characters added to related
+# increments may put them over the usual 255 character limit.
+#
+
+"""Contains class methods which coordinate related filenames"""
+max_filename_length = 255
+
+# If true, enable character quoting, and set characters making
+# regex-style range.
+chars_to_quote = None
+
+# These compiled regular expressions are used in quoting and unquoting
+chars_to_quote_regexp = None
+unquoting_regexp = None
+
+# Use given char to quote.  Default is set in Globals.
+quoting_char = None
+
+
+def set_init_quote_vals():
+	"""Set quoting value from Globals on all conns"""
+	for conn in Globals.connections:
+		conn.FilenameMapping.set_init_quote_vals_local()
+
+def set_init_quote_vals_local():
+	"""Set value on local connection, initialize regexps"""
+	global chars_to_quote
+	chars_to_quote = Globals.chars_to_quote
+	if len(Globals.quoting_char) != 1:
+		Log.FatalError("Expected single character for quoting char,"
+					   "got '%s' instead" % (Globals.quoting_char,))
+	quoting_char = Globals.quoting_char
+	init_quoting_regexps()
+
+def init_quoting_regexps():
+	"""Compile quoting regular expressions"""
+	global chars_to_quote_regexp, unquoting_regexp
+	try:
+		chars_to_quote_regexp = \
+				 re.compile("[%s%s]" % (chars_to_quote, quoting_char), re.S)
+		unquoting_regexp = re.compile("%s[0-9]{3}" % quoting_char, re.S)
+	except re.error:
+		Log.FatalError("Error '%s' when processing char quote list %s" %
+					   (re.error, chars_to_quote))
+
+def quote(path):
+	"""Return quoted version of given path
+
+	Any characters quoted will be replaced by the quoting char and
+	the ascii number of the character.  For instance, "10:11:12"
+	would go to "10;05811;05812" if ":" were quoted and ";" were
+	the quoting character.
+
+	"""
+	return chars_to_quote_regexp.sub(quote_single, path)
+
+def quote_single(match):
+	"""Return replacement for a single character"""
+	return "%s%03d" % (quoting_char, ord(match.group()))
+
+def unquote(path):
+	"""Return original version of quoted filename"""
+	return unquoting_regexp.sub(unquote_single, path)
+
+def unquote_single(match):
+	"""Unquote a single quoted character"""
+	assert len(match.group()) == 4
+	return chr(int(match.group()[1:]))
+
+def get_quoted_dir_children(rpath):
+	"""For rpath directory, return list of quoted children in dir"""
+	if not rpath.isdir(): return []
+	dir_pairs = [(unquote(filename), filename)
+				 for filename in Robust.listrp(rpath)]
+	dir_pairs.sort() # sort by real index, not quoted part
+	child_list = []
+	for unquoted, filename in dir_pairs:
+		childrp = rpath.append(unquoted)
+		childrp.quote_path()
+		child_list.append(childrp)
+	return child_list
+
+
+
-- 
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