Work-in-progress on Python script to create catalog.xml

Script to generate tarballs and serve directory from an Aircraft folder. Includes
thumbnail extraction, MD5 creation, tarball creation and -set.xml parsing, but
still some further work to be done.

create_catalog.py

@@ -0,0 +1,97 @@
+#!/usr/bin/python
+
+import os
+import sys
+import fnmatch
+import tarfile
+import hashlib
+import shutil
+
+import xml.etree.cElementTree as ET
+
+rootPath = sys.argv[1]
+outputDir = sys.argv[2]
+
+shutil.rmtree(outputDir)
+thumbsDir = os.path.join(outputDir, 'thumbs')
+os.makedirs(thumbsDir)
+
+def parse_setXml(path):
+    tree = ET.parse(path)
+    
+    desc = tree.find('sim/description')
+    ratings = tree.find('sim/rating')
+    if (ratings is not None):
+        for rating in list(ratings):
+            if rating.tag == 'status':
+                continue
+                
+            rvalue = int(rating.text)
+            if rvalue < 2:
+                return None
+    else:
+        return None
+    
+    d = {}
+    
+    d['ratings'] = ratings;
+    d['status'] = tree.find('sim/status')
+    d['authors'] = tree.findall('sim/author')
+
+    return d
+    
+def process_aircraft(acft, path):
+    print '===' + acft + '==='
+    setFiles = []
+    thumbs = []
+    
+    for file in os.listdir(path):
+        if fnmatch.fnmatch(file, '*-set.xml'):
+            setFiles.append(file);
+        
+        if fnmatch.fnmatch(file, 'thumbnail*'):
+            thumbs.append(file)
+    
+    aircraft = []
+    for s in setFiles:
+        d = parse_setXml(os.path.join(path, s))
+        if d is None:
+            continue
+        
+        d['set'] = s[0:-8]
+        aircraft.append(d)
+            
+    # copy thumbnails
+    for t in thumbs:
+        outThumb = os.path.join(thumbsDir, acft + "-" + t)
+        shutil.copyfile(os.path.join(path, t), outThumb)
+            
+    if len(aircraft) == 0:
+        print "no aircraft profiles for " + acft
+        return
+            
+    # tarball creation
+    outTar = os.path.join(outputDir, acft + ".tar.gz")
+    tar = tarfile.open(outTar, "w:gz")
+    tar.add(path, acft)
+    tar.close()
+
+    digest = hashlib.md5(open(outTar, 'r').read()).hexdigest()
+    print "wrote tarfile, digest is " + digest
+    
+root = ET.Element('PropertyList')
+catalogTree = ET.ElementTree(root)
+
+licenseElement = ET.SubElement(root, 'license')
+licenseElement.text = 'gpl'
+
+urlElement = ET.SubElement(root, 'url')
+urlElement.text = 'http://catalog.xml'
+
+for acft in os.listdir(rootPath):
+    path = os.path.join(rootPath, acft);
+    if (os.path.isdir(path)):
+        process_aircraft(acft, path)
+
+catalogTree.write(os.path.join(outputDir, 'catalog.xml'), 'UTF-8')
+