Faster path discovery

helpers/vdf2json.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+
+from shlex import shlex
+
+def vdf2json(stream):
+
+    """
+    Read a Steam vdf file and return a string in json format
+    """
+
+    def _istr(ident, string):
+        return (ident * '  ') + string
+
+    jbuf = '{\n'
+    lex = shlex(stream)
+    indent = 1
+
+    while True:
+        tok = lex.get_token()
+        if not tok:
+            return jbuf + '}\n'
+        if tok == '}':
+            indent -= 1
+            jbuf += _istr(indent, '}')
+            ntok = lex.get_token()
+            lex.push_token(ntok)
+            if ntok and ntok != '}':
+                jbuf += ','
+            jbuf += '\n'
+        else:
+            ntok = lex.get_token()
+            if ntok == '{':
+                jbuf += _istr(indent, tok + ': {\n')
+                indent += 1
+            else:
+                jbuf += _istr(indent, tok + ': ' + ntok)
+                ntok = lex.get_token()
+                lex.push_token(ntok)
+                if ntok != '}':
+                    jbuf += ','
+                jbuf += '\n'
+def main():
+    """
+    Read Steam vdf and write json compatible conversion
+    """
+    import sys
+    import argparse
+
+    parser = argparse.ArgumentParser(prog='vdf2json', description=main.__doc__)
+    parser.add_argument('-i', '--input',
+                        default=sys.stdin,
+                        type=argparse.FileType('r'),
+                        help='input vdf file (stdin if not specified)')
+    parser.add_argument('-o', '--output',
+                        default=sys.stdout,
+                        type=argparse.FileType('w'),
+                        help='output json file (stdout if not specified)')
+
+    args = parser.parse_args()
+    args.output.write(vdf2json(args.input))
+
+if __name__ == '__main__':
+    main()