initial import of the script to improve the management of dependencies.

1 files changed, 61 insertions, 0 deletions

diff --git a/scripts/requirements.py b/scripts/requirements.py
new file mode 100755
index 0000000..3d46b27
--- /dev/null
+++ b/scripts/requirements.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+    requirements.py
+    ~~~~~~~~~~~~~~~
+    
+    a simple script that creates a JSON file with the list of dependencies
+    that are not from octave-forge package (SystemRequirements and
+    BuildRequires). It writes the JSON content to the stdout.
+    
+    :copyright: (c) 2010 by Rafael Goncalves Martins
+    :license: GPL-2, see LICENSE for more details.
+"""
+
+import json
+import sys
+import os
+
+current_dir = os.path.dirname(os.path.realpath(__file__))
+if os.path.exists(os.path.join(current_dir, '..', 'g_octave')):
+    sys.path.insert(0, os.path.join(current_dir, '..'))
+
+from g_octave import description, description_tree, exception
+
+def main(argv):
+    desc_tree = description_tree.DescriptionTree(parse_sysreq = False)
+    
+    dependencies = []
+    
+    for pkg in desc_tree.packages():
+        try:
+            desc = desc_tree[pkg]
+        except exception.DescriptionTreeException, err:
+            print >> sys.stderr, 'DescriptionTree error: %s' % err
+            return 1
+        
+        deps = []
+        
+        if desc.systemrequirements is not None:
+            deps += [i.strip() for i in desc.systemrequirements.split(',')]
+        
+        if desc.buildrequires is not None:
+            deps += [i.strip() for i in desc.buildrequires.split(',')]
+        
+        for dep in deps:
+            match = description.re_depends.match(dep)
+            if match is not None:
+                dependencies.append(match.group(1))
+    
+    json_dict = dict(dependencies=dict())
+    
+    for dep in dependencies:
+        json_dict['dependencies'][dep] = ''
+    
+    json.dump(json_dict, sys.stdout, sort_keys=True, indent=4)
+    
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))