Add heading file argument to generator script

scripts/man.py

@@ -1,8 +1,42 @@
+import os
 import sys
-from hexathon import strip_0x
-from chainlib.cli.man import DocGenerator
+import argparse
+import tempfile
+import shutil
 
-b = bytes.fromhex(strip_0x(sys.argv[1]))
+from hexathon import strip_0x, add_0x
+
+from chainlib.cli.man import DocGenerator
+from chainlib.cli.base import argflag_std_base
+
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-b', default=add_0x(hex(argflag_std_base)), help='argument flag bitmask')
+argparser.add_argument('-n', help='tool name to use for man filename')
+argparser.add_argument('-d', default='.', help='output directory')
+argparser.add_argument('header_file', help='groff file containing heading, synopsis and description')
+args = argparser.parse_args(sys.argv[1:])
+
+#b = bytes.fromhex(strip_0x(sys.argv[1]))
+b = bytes.fromhex(strip_0x(args.b))
 g = DocGenerator(int.from_bytes(b, byteorder='little'))
 g.process()
-print(g)
+
+f = open(args.header_file)
+head = f.read()
+f.close()
+
+toolname = args.n
+if toolname == None:
+    parts = os.path.splitext(os.path.basename(args.header_file))
+    toolname = parts[0]
+
+(fd, fp) = tempfile.mkstemp()
+f = os.fdopen(fd, 'w')
+f.write(head)
+f.write(str(g))
+f.close()
+
+dest = os.path.join(args.d, toolname + '.1')
+shutil.copyfile(fp, dest)
+
+os.unlink(fp)