centralize ansible_managed and other template vars

now template lookup supports these again.

lib/ansible/plugins/action/template.py

@@ -17,17 +17,14 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-import datetime
 import os
-import pwd
-import time
 
 from ansible import constants as C
 from ansible.errors import AnsibleError
-from ansible.module_utils.six import string_types
 from ansible.module_utils._text import to_bytes, to_native, to_text
 from ansible.plugins.action import ActionBase
 from ansible.utils.hashing import checksum_s
+from ansible.template import generate_ansible_template_vars
 
 boolean = C.mk_boolean
 
@@ -110,36 +107,8 @@ class ActionModule(ActionBase):
             with open(b_source, 'r') as f:
                 template_data = to_text(f.read())
 
-            try:
-                template_uid = pwd.getpwuid(os.stat(b_source).st_uid).pw_name
-            except:
-                template_uid = os.stat(b_source).st_uid
-
-            temp_vars = task_vars.copy()
-            temp_vars['template_host']     = os.uname()[1]
-            temp_vars['template_path']     = source
-            temp_vars['template_mtime']    = datetime.datetime.fromtimestamp(os.path.getmtime(b_source))
-            temp_vars['template_uid']      = template_uid
-            temp_vars['template_fullpath'] = os.path.abspath(source)
-            temp_vars['template_run_date'] = datetime.datetime.now()
-
-            managed_default = C.DEFAULT_MANAGED_STR
-            managed_str = managed_default.format(
-                host = temp_vars['template_host'],
-                uid  = temp_vars['template_uid'],
-                file = to_bytes(temp_vars['template_path'])
-            )
-            temp_vars['ansible_managed'] = time.strftime(
-                managed_str,
-                time.localtime(os.path.getmtime(b_source))
-            )
-
-            searchpath = []
             # set jinja2 internal search path for includes
-            if 'ansible_search_path' in task_vars:
-                searchpath = task_vars['ansible_search_path']
-                # our search paths aren't actually the proper ones for jinja includes.
-
+            searchpath = task_vars.get('ansible_search_path', [])
             searchpath.extend([self._loader._basedir, os.path.dirname(source)])
 
             # We want to search into the 'templates' subdir of each search path in
@@ -163,6 +132,10 @@ class ActionModule(ActionBase):
             if trim_blocks is not None:
                 self._templar.environment.trim_blocks = bool(trim_blocks)
 
+            # add ansible 'template' vars
+            temp_vars = task_vars.copy()
+            temp_vars.update(generate_ansible_template_vars(source))
+
             old_vars = self._templar._available_variables
             self._templar.set_available_variables(temp_vars)
             resultant = self._templar.do_template(template_data, preserve_trailing_newlines=True, escape_backslashes=False)

lib/ansible/plugins/lookup/template.py

@@ -22,6 +22,7 @@ import os
 from ansible.errors import AnsibleError
 from ansible.plugins.lookup import LookupBase
 from ansible.module_utils._text import to_bytes, to_text
+from ansible.template import generate_ansible_template_vars
 
 try:
     from __main__ import display
@@ -47,8 +48,8 @@ class LookupModule(LookupBase):
                     template_data = to_text(f.read(), errors='surrogate_or_strict')
 
                     # set jinja2 internal search path for includes
-                    if 'ansible_search_path' in variables:
-                        searchpath = variables['ansible_search_path']
+                    searchpath = variables.get('ansible_search_path')
+                    if searchpath:
                         # our search paths aren't actually the proper ones for jinja includes.
                         # We want to search into the 'templates' subdir of each search path in
                         # addition to our original search paths.
@@ -61,6 +62,11 @@ class LookupModule(LookupBase):
                         searchpath = [self._loader._basedir, os.path.dirname(lookupfile)]
                     self._templar.environment.loader.searchpath = searchpath
 
+                    # add ansible 'template' vars
+                    temp_vars = variables.copy()
+                    temp_vars.update(generate_ansible_template_vars(lookupfile))
+                    self._templar.set_available_variables(temp_vars)
+
                     # do the templating
                     res = self._templar.template(template_data, preserve_trailing_newlines=True,convert_data=convert_data_p)
                     ret.append(res)

lib/ansible/template/__init__.py

@@ -21,8 +21,11 @@ __metaclass__ = type
 
 import ast
 import contextlib
+import datetime
 import os
+import pwd
 import re
+import time
 
 from io import StringIO
 from numbers import Number
@@ -35,13 +38,13 @@ except ImportError:
 from jinja2 import Environment
 from jinja2.loaders import FileSystemLoader
 from jinja2.exceptions import TemplateSyntaxError, UndefinedError
-from jinja2.utils import concat as j2_concat, missing
+from jinja2.utils import concat as j2_concat
 from jinja2.runtime import Context, StrictUndefined
 
 from ansible import constants as C
 from ansible.errors import AnsibleError, AnsibleFilterError, AnsibleUndefinedVariable
 from ansible.module_utils.six import string_types, text_type
-from ansible.module_utils._text import to_native, to_text
+from ansible.module_utils._text import to_native, to_text, to_bytes
 from ansible.plugins import filter_loader, lookup_loader, test_loader
 from ansible.template.safe_eval import safe_eval
 from ansible.template.template import AnsibleJ2Template
@@ -54,7 +57,7 @@ except ImportError:
     display = Display()
 
 
-__all__ = ['Templar']
+__all__ = ['Templar', 'generate_ansible_template_vars']
 
 # A regex for checking to see if a variable we're trying to
 # expand is just a single variable name.
@@ -65,6 +68,33 @@ NON_TEMPLATED_TYPES = ( bool, Number )
 JINJA2_OVERRIDE = '#jinja2:'
 
 
+def generate_ansible_template_vars(path):
+
+    b_path = to_bytes(path)
+    try:
+        template_uid = pwd.getpwuid(os.stat(b_path).st_uid).pw_name
+    except:
+        template_uid = os.stat(b_path).st_uid
+
+    temp_vars = {}
+    temp_vars['template_host']     = os.uname()[1]
+    temp_vars['template_path']     = b_path
+    temp_vars['template_mtime']    = datetime.datetime.fromtimestamp(os.path.getmtime(b_path))
+    temp_vars['template_uid']      = template_uid
+    temp_vars['template_fullpath'] = os.path.abspath(path)
+    temp_vars['template_run_date'] = datetime.datetime.now()
+
+    managed_default = C.DEFAULT_MANAGED_STR
+    managed_str = managed_default.format(
+        host = temp_vars['template_host'],
+        uid  = temp_vars['template_uid'],
+        file = temp_vars['template_path'],
+    )
+    temp_vars['ansible_managed'] = time.strftime( managed_str, time.localtime(os.path.getmtime(b_path)))
+
+    return temp_vars
+
+
 def _escape_backslashes(data, jinja_env):
     """Double backslashes within jinja2 expressions