Changeset 3355 for pykota/trunk/pykota/commandline.py

Timestamp:

03/26/08 00:21:15 (16 years ago)

Author:

jerome

Message:

All new-style command line tools now have a working -A|--arguments command
line option to load options and arguments from a text file, one per line.
This option is now documented, and can be used at the same time
as other command line options : in old-style command line tools,
you weren't allowed to do this.

Files:

• pykota/trunk/pykota/commandline.py (modified) (3 diffs)

pykota/trunk/pykota/commandline.py

@@ -28 +28 @@
 
 from pykota import version
-from pykota.utils import loginvalidparam
+from pykota.utils import loginvalidparam, getdefaultcharset
 
 def checkandset_pagesize(option, opt, value, optionparser) :
@@ -74 +74 @@
     else :    
         setattr(optionparser.values, option.dest, value)
+
+def load_arguments_file(option, opt, value, optionparser) :    
+    """Checks if an option argument is comprised between 0.0 included and 100.0 not included, and validates the option if it is the case."""
+    setattr(optionparser.values, option.dest, value)
+    try :
+        argsfile = open(value.encode(getdefaultcharset(), "replace"), "r")
+    except IOError :
+        loginvalidparam(opt, value, additionalinfo=_("this option will be ignored"))
+    else :
+        arguments = [ l.strip().decode(getdefaultcharset(), "replace") for l in argsfile.readlines() ]
+        argsfile.close()
+        for i in range(len(arguments)) :
+            argi = arguments[i]
+            if argi.startswith('"') and argi.endswith('"') :
+                arguments[i] = argi[1:-1]
+        arguments.reverse()        
+        for arg in arguments :
+            optionparser.rargs.insert(0, arg)        
 
 class PyKotaOptionParser(optparse.OptionParser) :
@@ -197 +215 @@
                               action="version",
                               help=_("show the version number and exit"))
+        self.add_option("-A", "--arguments",
+                              action="callback",
+                              type="string",
+                              dest="argumentsfile",
+                              callback=load_arguments_file,
+                              help=_("loads additional options and arguments from a file, one per line"))