Add Requirements to rst template, ansible-doc

tweak position & look of Requirements in rst
tweak APT's notes as per anhj's wish

bin/ansible-doc

@@ -86,6 +86,11 @@ def print_man(doc):
                             subsequent_indent=opt_indent)
 
 
+    if 'requirements' in doc and len(doc['requirements']) > 0:
+        req = ", ".join(doc['requirements'])
+        print "Requirements:%s\n" % textwrap.fill(tty_ify(req), initial_indent="  ",
+                            subsequent_indent=opt_indent)
+
     if 'examples' in doc and len(doc['examples']) > 0:
         print "Example%s:\n" % ('' if len(doc['examples']) < 2 else 's')
         for ex in doc['examples']:
@@ -94,6 +99,7 @@ def print_man(doc):
     if 'plainexamples' in doc and doc['plainexamples'] is not None:
         print doc['plainexamples']
 
+
 def print_snippet(doc):
 
     desc = tty_ify("".join(doc['short_description']))

hacking/templates/rst.j2

@@ -42,6 +42,18 @@
     </table>
 {% endif %}
 
+{% if requirements %}
+.. raw:: html
+
+    <p>
+    <b>Requirements:</b> 
+    {% for req in requirements %}
+    @{ req | html_ify }@
+    {% endfor %}
+    </p>
+
+{% endif %}
+
 .. raw:: html
 
 {% for example in examples %}
@@ -62,6 +74,7 @@
     </pre>
 {% endif %}
 
+
 {% if notes %}
 .. raw:: html
 

library/packaging/apt

@@ -82,8 +82,11 @@ options:
     required: false
     default: "yes"
     choices: [ "yes", "safe", "full", "dist"]
+requirements: [ python-apt, aptitude ]
 author: Matthew Williams
-notes: []
+notes:
+   - Two of the upgrade modes (C(full) and C(dist)) require C(aptitude), otherwise
+     C(apt-get) suffices.
 examples:
     - code: "apt: pkg=foo update_cache=yes"
       description: Update repositories cache and install C(foo) package
@@ -103,7 +106,6 @@ examples:
       description: Run the equivalent of C(apt-get update) as a separate step
     - code: "apt: update_cache=yes cache_valid_time=3600"
       description: Only run C(update_cache=yes) if the last one is more than more than 3600 seconds ago
-requirements: [ python-apt, aptitude ]
 '''
 
 import traceback