cmdrefgen to generate command ref

bin/gencmdref

@@ -0,0 +1,38 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import datetime
+import subprocess
+
+from subprocess import check_output
+
+def run(cmd):
+  return check_output(cmd)
+
+def main():
+  lines = [l.strip() for l in sys.stdin]
+
+  print '# ipfs command reference'
+  print ''
+  print 'generated on', datetime.datetime.now()
+  print ''
+  for line in lines:
+    print '- [%s](#%s)' % (line, line.replace(' ', '-'))
+  print ''
+
+  for line in lines:
+    print '## %s' % line
+    print ''
+    print '```'
+    print run((line + ' --help').split(' ')).strip()
+    print '```'
+    print ''
+
+if __name__ == '__main__':
+  if '-h' in sys.argv or '--help' in sys.argv:
+    print 'usage: ipfs commands | %s >cmdref.md' % sys.argv[0]
+    print 'outputs all commands with --help to a markdown file'
+    exit(0)
+
+  main()