Working on complex argument support.

lib/ansible/module_common.py

@@ -18,6 +18,7 @@
 REPLACER = "#<<INCLUDE_ANSIBLE_MODULE_COMMON>>"
 REPLACER_ARGS = "<<INCLUDE_ANSIBLE_MODULE_ARGS>>"
 REPLACER_LANG = "<<INCLUDE_ANSIBLE_MODULE_LANG>>"
+REPLACER_COMPLEX = "<<INCLUDE_ANSIBLE_MODULE_COMPLEX_ARGS>>"
 
 MODULE_COMMON = """
 
@@ -25,6 +26,7 @@ MODULE_COMMON = """
 
 MODULE_ARGS = <<INCLUDE_ANSIBLE_MODULE_ARGS>>
 MODULE_LANG = <<INCLUDE_ANSIBLE_MODULE_LANG>>
+MODULE_COMPLEX_ARGS = <<INCLUDE_ANSIBLE_MODULE_COMPLEX_ARGS>>
 
 BOOLEANS_TRUE = ['yes', 'on', '1', 'true', 1]
 BOOLEANS_FALSE = ['no', 'off', '0', 'false', 0]
@@ -559,7 +561,9 @@ class AnsibleModule(object):
             except:
                 self.fail_json(msg="this module requires key=value arguments")
             params[k] = v
-        return (params, args)
+        params2 = json.loads(MODULE_COMPLEX_ARGS)
+        params2.update(params)
+        return (params2, args)
 
     def _log_invocation(self):
         ''' log that ansible ran the module '''

lib/ansible/playbook/__init__.py

@@ -273,7 +273,7 @@ class PlayBook(object):
             conditional=task.only_if, callbacks=self.runner_callbacks,
             sudo=task.sudo, sudo_user=task.sudo_user,
             transport=task.transport, sudo_pass=task.sudo_pass, is_playbook=True,
-            check=self.check, diff=self.diff, environment=task.environment
+            check=self.check, diff=self.diff, environment=task.environment, complex_args=task.args
         )
 
         if task.async_seconds == 0:

lib/ansible/playbook/task.py

@@ -27,7 +27,7 @@ class Task(object):
         'play', 'notified_by', 'tags', 'register',
         'delegate_to', 'first_available_file', 'ignore_errors',
         'local_action', 'transport', 'sudo', 'sudo_user', 'sudo_pass',
-        'items_lookup_plugin', 'items_lookup_terms', 'environment'
+        'items_lookup_plugin', 'items_lookup_terms', 'environment', 'args'
     ]
 
     # to prevent typos and such
@@ -35,7 +35,7 @@ class Task(object):
          'name', 'action', 'only_if', 'async', 'poll', 'notify',
          'first_available_file', 'include', 'tags', 'register', 'ignore_errors',
          'delegate_to', 'local_action', 'transport', 'sudo', 'sudo_user',
-         'sudo_pass', 'when', 'connection', 'environment'
+         'sudo_pass', 'when', 'connection', 'environment', 'args'
     ]
 
     def __init__(self, play, ds, module_vars=None, additional_conditions=None):
@@ -82,6 +82,10 @@ class Task(object):
         self.sudo         = utils.boolean(ds.get('sudo', play.sudo))
         self.environment  = ds.get('environment', {})
 
+        # rather than simple key=value args on the options line, these represent structured data and the values
+        # can be hashes and lists, not just scalars
+        self.args         = ds.get('args', {})
+
         if self.sudo:
             self.sudo_user    = ds.get('sudo_user', play.sudo_user)
             self.sudo_pass    = ds.get('sudo_pass', play.playbook.sudo_pass)

lib/ansible/runner/__init__.py

@@ -29,6 +29,7 @@ import socket
 import base64
 import sys
 import shlex
+import pipes
 
 import ansible.constants as C
 import ansible.inventory
@@ -120,9 +121,13 @@ class Runner(object):
         subset=None,                        # subset pattern
         check=False,                        # don't make any changes, just try to probe for potential changes
         diff=False,                         # whether to show diffs for template files that change
-        environment=None                    # environment variables (as dict) to use inside the command
+        environment=None,                   # environment variables (as dict) to use inside the command
+        complex_args=None                   # structured data in addition to module_args, must be a dict
         ):
 
+        if not complex_args:
+            complex_args = {}
+
         # storage & defaults
         self.check            = check
         self.diff             = diff
@@ -151,6 +156,7 @@ class Runner(object):
         self.sudo_pass        = sudo_pass
         self.is_playbook      = is_playbook
         self.environment      = environment
+        self.complex_args     = complex_args
 
         # misc housekeeping
         if subset and self.inventory._subset is None:
@@ -168,6 +174,27 @@ class Runner(object):
 
         # ensure we are using unique tmp paths
         random.seed()
+        
+    # *****************************************************
+
+    def _complex_args_hack(self, complex_args, module_args):
+        """
+        ansible-playbook both allows specifying key=value string arguments and complex arguments
+        however not all modules use our python common module system and cannot
+        access these.  An example might be a Bash module.  This hack allows users to still pass "args"
+        as a hash of simple scalars to those arguments and is short term.  We could technically
+        just feed JSON to the module, but that makes it hard on Bash consumers.  The way this is implemented
+        it does mean values in 'args' have LOWER priority than those on the key=value line, allowing
+        args to provide yet another way to have pluggable defaults.
+        """
+        if complex_args is None:
+            return module_args
+        if type(complex_args) != dict:
+            raise errors.AnsibleError("complex arguments are not a dictionary: %s" % complex_args)
+        for (k,v) in complex_args.iteritems():
+            if isinstance(v, basestring):
+                module_args = "%s=%s %s" % (k, pipes.quote(v), module_args)
+        return module_args
 
     # *****************************************************
 
@@ -212,7 +239,7 @@ class Runner(object):
     # *****************************************************
 
     def _execute_module(self, conn, tmp, module_name, args,
-        async_jid=None, async_module=None, async_limit=None, inject=None, persist_files=False):
+        async_jid=None, async_module=None, async_limit=None, inject=None, persist_files=False, complex_args=None):
 
         ''' runs a module that has already been transferred '''
 
@@ -222,7 +249,7 @@ class Runner(object):
             if 'port' not in args:
                 args += " port=%s" % C.ZEROMQ_PORT
 
-        (remote_module_path, is_new_style, shebang) = self._copy_module(conn, tmp, module_name, args, inject)
+        (remote_module_path, is_new_style, shebang) = self._copy_module(conn, tmp, module_name, args, inject, complex_args)
 
         environment_string = self._compute_environment_string(inject)
 
@@ -364,6 +391,7 @@ class Runner(object):
     def _executor_internal_inner(self, host, module_name, module_args, inject, port, is_chained=False):
         ''' decides how to invoke a module '''
 
+
         # allow module args to work as a dictionary
         # though it is usually a string
         new_args = ""
@@ -374,6 +402,7 @@ class Runner(object):
 
         module_name = utils.template(self.basedir, module_name, inject)
         module_args = utils.template(self.basedir, module_args, inject)
+        
 
         if module_name in utils.plugins.action_loader:
             if self.background != 0:
@@ -448,8 +477,8 @@ class Runner(object):
         # all modules get a tempdir, action plugins get one unless they have NEEDS_TMPPATH set to False
         if getattr(handler, 'NEEDS_TMPPATH', True):
             tmp = self._make_tmp_path(conn)
-
-        result = handler.run(conn, tmp, module_name, module_args, inject)
+        
+        result = handler.run(conn, tmp, module_name, module_args, inject, self.complex_args)
 
         conn.close()
 
@@ -558,9 +587,11 @@ class Runner(object):
 
     # *****************************************************
 
-    def _copy_module(self, conn, tmp, module_name, module_args, inject):
+    def _copy_module(self, conn, tmp, module_name, module_args, inject, complex_args=None):
         ''' transfer a module over SFTP, does not run it '''
 
+        # FIXME if complex args is none, set to {}
+
         if module_name.startswith("/"):
             raise errors.AnsibleFileNotFound("%s is not a module" % module_name)
 
@@ -578,11 +609,17 @@ class Runner(object):
             module_data = f.read()
             if module_common.REPLACER in module_data:
                 is_new_style=True
-            module_data = module_data.replace(module_common.REPLACER, module_common.MODULE_COMMON)
+ 
+            complex_args_json = utils.jsonify(complex_args) 
             encoded_args = "\"\"\"%s\"\"\"" % module_args.replace("\"","\\\"")
-            module_data = module_data.replace(module_common.REPLACER_ARGS, encoded_args)
             encoded_lang = "\"\"\"%s\"\"\"" % C.DEFAULT_MODULE_LANG
+            encoded_complex = "\"\"\"%s\"\"\"" % complex_args_json
+
+            module_data = module_data.replace(module_common.REPLACER, module_common.MODULE_COMMON)
+            module_data = module_data.replace(module_common.REPLACER_ARGS, encoded_args)
             module_data = module_data.replace(module_common.REPLACER_LANG, encoded_lang)
+            module_data = module_data.replace(module_common.REPLACER_COMPLEX, encoded_complex)
+            
             if is_new_style:
                 facility = C.DEFAULT_SYSLOG_FACILITY
                 if 'ansible_syslog_facility' in inject:
@@ -684,7 +721,9 @@ class Runner(object):
         # run once per hostgroup, rather than pausing once per each
         # host.
         p = utils.plugins.action_loader.get(self.module_name, self)
+        
         if p and getattr(p, 'BYPASS_HOST_LOOP', None):
+
             # Expose the current hostgroup to the bypassing plugins
             self.host_set = hosts
             # We aren't iterating over all the hosts in this
@@ -697,6 +736,7 @@ class Runner(object):
             results = [ ReturnData(host=h, result=result_data, comm_ok=True) \
                            for h in hosts ]
             del self.host_set
+
         elif self.forks > 1:
             try:
                 results = self._parallel_exec(hosts)

lib/ansible/runner/action_plugins/add_host.py

@@ -34,7 +34,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs)
 
         if self.runner.check:
             return ReturnData(conn=conn, comm_ok=True, result=dict(skipped=True, msg='check mode not supported for this module'))

lib/ansible/runner/action_plugins/async.py

@@ -22,7 +22,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
         ''' transfer the given module name, plus the async module, then run it '''
 
         if self.runner.check:

lib/ansible/runner/action_plugins/copy.py

@@ -26,7 +26,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
         ''' handler for file transfer operations '''
 
         # load up options

lib/ansible/runner/action_plugins/debug.py

@@ -28,7 +28,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
         args = utils.parse_kv(module_args)
         if not 'msg' in args:
             args['msg'] = 'Hello world!'

lib/ansible/runner/action_plugins/fail.py

@@ -28,7 +28,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
 
         # note: the fail module does not need to pay attention to check mode
         # it always runs.

lib/ansible/runner/action_plugins/fetch.py

@@ -33,7 +33,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
         ''' handler for fetch operations '''
 
         if self.runner.check:

lib/ansible/runner/action_plugins/group_by.py

@@ -32,7 +32,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
 
         # the group_by module does not need to pay attention to check mode.
         # it always runs.

lib/ansible/runner/action_plugins/normal.py

@@ -33,9 +33,12 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
         ''' transfer & execute a module that is not 'copy' or 'template' '''
 
+        complex_args = utils.template(self.runner.basedir, complex_args, inject)
+        module_args = self.runner._complex_args_hack(complex_args, module_args)
+
         if self.runner.check:
             if module_name in [ 'shell', 'command' ]:
                 return ReturnData(conn=conn, comm_ok=True, result=dict(skipped=True, msg='check mode not supported for %s' % module_name))
@@ -49,6 +52,6 @@ class ActionModule(object):
             module_args += " #USE_SHELL"
 
         vv("REMOTE_MODULE %s %s" % (module_name, module_args), host=conn.host)
-        return self.runner._execute_module(conn, tmp, module_name, module_args, inject=inject)
+        return self.runner._execute_module(conn, tmp, module_name, module_args, inject=inject, complex_args=complex_args)
 
 

lib/ansible/runner/action_plugins/pause.py

@@ -46,7 +46,7 @@ class ActionModule(object):
                        'delta': None,
                        }
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
         ''' run the pause action module '''
 
         # note: this module does not need to pay attention to the 'check'

lib/ansible/runner/action_plugins/raw.py

@@ -28,7 +28,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
 
         if self.runner.check:
             # in --check mode, always skip this module execution

lib/ansible/runner/action_plugins/script.py

@@ -28,7 +28,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
         ''' handler for file transfer operations '''
 
         if self.runner.check:

lib/ansible/runner/action_plugins/template.py

@@ -27,7 +27,7 @@ class ActionModule(object):
     def __init__(self, runner):
         self.runner = runner
 
-    def run(self, conn, tmp, module_name, module_args, inject):
+    def run(self, conn, tmp, module_name, module_args, inject, complex_args=None, **kwargs):
         ''' handler for template operations '''
 
         # note: since this module just calls the copy module, the --check mode support

lib/ansible/utils/__init__.py

@@ -118,6 +118,8 @@ def exit(msg, rc=1):
 def jsonify(result, format=False):
     ''' format JSON output (uncompressed or uncompressed) '''
 
+    if result is None:
+        return {}
     result2 = result.copy()
     if format:
         return json.dumps(result2, sort_keys=True, indent=4)

library/ping

@@ -36,10 +36,15 @@ author: Michael DeHaan
 
 def main():
     module = AnsibleModule(
-        argument_spec = dict(),
+        argument_spec = dict(
+            data=dict(required=False, default=None),
+        ),
         supports_check_mode = True
     )
-    module.exit_json(ping='pong')
+    result = dict(ping='pong')
+    if module.params['data']:
+        result['ping'] = module.params['data']
+    module.exit_json(**result)
 
 # this is magic, see lib/ansible/module_common.py
 #<<INCLUDE_ANSIBLE_MODULE_COMMON>>