From 01f6e4c0ddbc2f1fa01ba464a563d17eb4540966 Mon Sep 17 00:00:00 2001
From: Fabian Affolter <fabian@bernewireless.net>
Date: Tue, 9 Nov 2010 01:08:24 +0100
Subject: Attempt to build a rpm pkg list with yum

---
 tools/create-rpm-pkglist.py | 124 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 tools/create-rpm-pkglist.py

diff --git a/tools/create-rpm-pkglist.py b/tools/create-rpm-pkglist.py
new file mode 100644
index 000000000..e88de4191
--- /dev/null
+++ b/tools/create-rpm-pkglist.py
@@ -0,0 +1,124 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2010  Fabian Affolter, Bernewireless.net. 
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+
+# * Redistributions of source code must retain the above copyright notice, this
+# list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+# * Neither the name of the Bernewireless nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Author: Fabian Affolter <fabian at bernewireless.net>
+# 
+
+import yum
+import os
+import sys
+from lxml import etree
+from optparse import OptionParser
+
+__author__ = 'Fabian Affolter <fabian@bernewireless.net>'
+__version__ = '0.1'
+
+def retrievePackages():
+    """Getting the installed packages with yum."""
+    yb = yum.YumBase()
+    yb.conf.cache = os.geteuid() != 1
+    pl = yb.doPackageLists('installed')
+    pkglist = []
+    for pkg in sorted(pl.installed):
+        pkgdata = pkg.name, pkg.version
+        pkglist.append(pkgdata)        
+    
+    return pkglist
+
+def parse_command_line_parameters():
+    """Parses command line arguments."""
+    usage = "usage: %prog [options]"
+    version = 'Version: %prog ' + __version__
+    parser = OptionParser(usage, version=version)
+    parser.add_option("-s", "--show", action="store_true",
+                      help="Prints the result to STOUT")
+    parser.add_option("-v", "--pkgversion", action="store_true",
+                      help="Include Package version")
+    parser.add_option("-f", "--filename", dest="filename",
+                      type="string",
+                      metavar="FILE", default="packages.xml",
+                      help="Write the output to an XML FILE" )
+
+    (options, args) = parser.parse_args()
+    num_args = 1
+
+    return options, args
+
+def indent(elem, level=0):
+    """Helps clean up the XML."""
+    # Stolen from http://effbot.org/zone/element-lib.htm
+    i = "\n" + level*"  "
+    if len(elem):
+        if not elem.text or not elem.text.strip():
+            elem.text = i + "  "
+        for e in elem:
+            indent(e, level+1)
+            if not e.tail or not e.tail.strip():
+                e.tail = i + "  "
+        if not e.tail or not e.tail.strip():
+            e.tail = i
+    else:
+        if level and (not elem.tail or not elem.tail.strip()):
+            elem.tail = i
+
+def transformXML():
+    """Transform the package list to an XML file."""
+    packagelist = retrievePackages()
+    root = etree.Element("PackageList")
+    for i,j in packagelist:
+        root.append( etree.Element("Package", name = i, version = j) )
+    #Print the content
+    #print(etree.tostring(root, pretty_print=True))
+    tree = etree.ElementTree(root)
+    return tree
+
+def main():
+    options, args = parse_command_line_parameters()
+    filename = options.filename
+    packagelist = transformXML()
+
+    if options.show == True:
+        tree = etree.parse(filename)
+        for node in tree.findall("//Package"):
+            print node.attrib["name"]
+        indent(packagelist.getroot())
+        packagelist.write(filename, encoding="utf-8")
+
+    if options.pkgversion == True:
+        tree = etree.parse(filename)
+        for node in tree.findall("//Package"):
+            print "%s-%s" % (node.attrib["name"], node.attrib["version"])
+
+#FIXME : This should be changed to the standard way of optparser
+#FIXME : Make an option available to strip the version number of the pkg
+    if options.pkgversion == None and options.show == None:
+        indent(packagelist.getroot())
+        packagelist.write(filename, encoding="utf-8")
+
+if __name__ == "__main__":
+    main()
-- 
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