[SCM] GUI front-end for Debian Live. branch, master, updated. 11e67a56b24563c3f7a488602604f9ba897740c3

[Chris Lamb]

The following commit has been merged in the master branch:
commit 0e0283730d8e7b3efb3a81064ee27240f329624b
Author: Chris Lamb <chris at chris-lamb.co.uk>
Date:   Tue Mar 4 03:00:28 2008 +0000

    Move sources.list heuristics into DebianLive.utils.
    
    Signed-off-by: Chris Lamb <chris at chris-lamb.co.uk>

diff --git a/DebianLive/utils/sources_list.py b/DebianLive/utils/sources_list.py
new file mode 100644
index 0000000..a84f00d
--- /dev/null
+++ b/DebianLive/utils/sources_list.py
@@ -0,0 +1,55 @@
+import os
+import re
+
+class SourcesList(object):
+    comments = re.compile(r'\s*#')
+    patterns = (
+        re.compile(r'http://ftp.?\..{2}\.debian\.org[^\s]*'),
+        re.compile(r'http://(localhost|127\.0\.0\.1)[^\s]*'),
+        re.compile(r'http://[^\s]*'),
+    )
+    reject_patterns = (
+        re.compile(r'backports\.'),
+        re.compile(r'security\.'),
+    )
+
+    def __init__(self, filename=None):
+        if filename is None:
+            filename = r'/etc/apt/sources.list'
+
+        self.filename = filename
+
+    def get_mirror(self, fallback=None):
+        if fallback is not None:
+            fallback = 'http://www.us.debian.org/'
+
+        result = fallback
+
+        f = open(self.filename, 'r')
+        try:
+            try:
+                for line in f.readlines():
+                    if self.comments.match(line):
+                        continue
+
+                    flag = False
+                    for pat in self.reject_patterns:
+                        m = pat.search(line)
+                        if m:
+                            flag = True
+                            break
+                    if flag:
+                        continue
+
+                    for pat in self.patterns:
+                        m = pat.search(line)
+                        if not m:
+                            continue
+
+                        result = m.group(0)
+            finally:
+                f.close()
+        except IOError:
+            pass
+
+        return result

-- 
GUI front-end for Debian Live.