Refactoring test-module to be more like ansible.

hacking/test-module

@@ -30,6 +30,7 @@ import sys
 import os
 import subprocess
 import traceback
+import optparse
 import ansible.utils as utils
 import ansible.module_common as module_common
 
@@ -38,23 +39,38 @@ try:
 except ImportError:
     import simplejson as json
 
-modfile = None
+def parse():
+    """parse command line
 
-if len(sys.argv) == 1:
-    print >>sys.stderr, "usage: test-module ./library/command [key=value ...]"
-    sys.exit(1)
+    :return : (options, args)"""
+    parser = optparse.OptionParser()
+
+    parser.usage = "%prog [options] (-h for help)"
 
-modfile = sys.argv[1]
-if len(sys.argv) > 1:
-    args = " ".join(sys.argv[2:])
+    parser.add_option('-m', '--module-name', dest='module_name',
+        help="module name to execute")
+    parser.add_option('-a', '--args', dest='module_args', default="",
+        help="module arguments")
+    parser.add_option('-D', '--debugger', dest='debugger', 
+        help="path to python debugger (e.g. /usr/bin/pdb)")
+    options, args = parser.parse_args()
+    if not options.module_name:
+        parser.print_help()
+        sys.exit(1)
     else:
-    args = ""
+        return options, args
+
+def write_argsfile( argstring):
+    """Write args to a file for the module's use.
     
+    :return: full path to args file"""
     argspath = os.path.expanduser("~/.ansible_test_module_arguments")
     argsfile = open(argspath, 'w')
-argsfile.write(args)
+    argsfile.write(argstring)
     argsfile.close()
+    return argspath
 
+def boilerplate_module( modfile):
     module_fh = open(modfile)
     module_data = module_fh.read()
     included_boilerplate = module_data.find(module_common.REPLACER) != -1
@@ -64,14 +80,24 @@ if included_boilerplate:
         module_data = module_data.replace(module_common.REPLACER, module_common.MODULE_COMMON)
         modfile2_path = os.path.expanduser("~/.ansible_module_generated")
         print "* including generated source, if any, saving to: %s" % modfile2_path
-    print "* this will offset any line numbers in tracebacks!"
+        print "* this will offset any line numbers in tracebacks/debuggers!"
         modfile2 = open(modfile2_path, 'w')
         modfile2.write(module_data)
         modfile2.close()
         modfile = modfile2_path
+        return modfile2_path
     else:
-    print "* module boilerplate substitution not requested in module, tracebacks will be unaltered"
+        print "* module boilerplate substitution not requested in module, line numbers will be unaltered"
+        return modfile
 
+def main(): 
+    options, args = parse()
+
+    argspath = write_argsfile( options.module_args)
+    modfile = boilerplate_module( options.module_name)
+    print argspath, modfile
+    sys.exit(0)
+    #===== run or debug the module
     os.system("chmod +x %s" % modfile)
     cmd = subprocess.Popen("%s %s" % (modfile, argspath), 
         shell=True,
@@ -98,7 +124,8 @@ print "PARSED OUTPUT"
 
     print utils.jsonify(results,format=True)
 
-sys.exit(0)
 	
+if __name__ == "__main__":
+    main()