Fever as sent by Michal

svn path=/fever/; revision=4

1 files changed, 85 insertions, 0 deletions

diff --git a/fever/commons.py b/fever/commons.py
new file mode 100644
index 0000000..c44fcc2
--- /dev/null
+++ b/fever/commons.py
@@ -0,0 +1,85 @@
+#!/usr/bin/python
+# -*- coding: utf8 -*-
+
+# fever - by Michał Bentkowski 2007
+# licensed under GPL
+
+# this file contains a few functions not direct related with fever,
+# but fever can't work without them.
+
+# I decided to split it because the main file would be too inlegible
+
+import re
+import tempfile
+import sys
+import urllib
+
+def unit(number):
+	"""Changes bytes unit to more legible one"""
+	mp=1024
+	prefixes="","k","M","G","T" # probably we don't need more ones :-)
+	for (p, i) in zip(prefixes, map(lambda x: mp**x, xrange(len(prefixes)))):
+		x=float(number)/i
+		if x < mp:
+			return "%0.2f %sB" % (x,p)
+
+def download(url,verbose=False):
+	"""Downloads specified URL. Returns its content"""
+	block_size=10240
+	temp=tempfile.TemporaryFile()
+	file=urllib.urlopen(url)
+	try:
+		filesize=" of "+unit(long(file.headers["content-length"]))
+	except KeyError:
+		filesize=""
+	block=file.read(block_size)
+	bytes=0
+	while block != "":
+		bytes+=len(block)
+		temp.write(block)
+		if verbose:
+			sys.stdout.write("\rDownloading %s... %s%s" % (file.url[:40], unit(bytes), filesize))
+			sys.stdout.flush()
+		block=file.read(block_size)
+	if verbose: print "\nDownloaded!"
+	temp.seek(0)
+	return temp.read()
+
+def rpmvercmp(a, b):
+	""" Comparing algorithm based on original rpmvercmp """
+	a,b=map(re.split,("[\W_]+|(\d+)",)*2,(str(a),str(b))) # split versions strings according to rpm version
+						# comparing algorithm
+	a,b=map(lambda x: [elem for elem in x if elem not in (None, "")],[a,b]) # and remove empty
+										# elements
+	for elem_a, elem_b in zip(a,b):
+		try:
+			elem_a=int(elem_a)
+		except ValueError:
+			pass
+		try:
+			elem_b=int(elem_b)
+		except ValueError:
+			pass
+		elem_a_type,elem_b_type=map(type,(elem_a,elem_b))
+		if elem_a_type != elem_b_type:
+			if elem_a_type == int:
+				return 1
+			else:
+				return -1
+		elif (elem_a_type, elem_b_type) == (int,)*2:
+			compare=cmp(int(elem_a),int(elem_b))
+			if compare != 0:
+				return compare
+		else:
+			compare=cmp(elem_a, elem_b)
+			if compare != 0:
+				return compare
+	return cmp(len(a),len(b))
+def vercmpsort(List):
+        """Sorting based on an rpmvercmp algorithm"""
+        for indexes in range(len(List)-1, 0, -1):
+                for index in range(indexes):
+                        if rpmvercmp(List[index],List[index+1]) == 1:
+                                List[index],List[index+1]=List[index+1],List[index]
+        List.reverse()
+        return List
\ No newline at end of file