Revert "Remove vendored libjuju"

[osm/N2VC.git] / modules / libjuju / docs / _extensions / automembersummary.py

diff --git a/modules/libjuju/docs/_extensions/automembersummary.py b/modules/libjuju/docs/_extensions/automembersummary.py
new file mode 100644 (file)
index 0000000..cfe0b84
--- /dev/null
+++ b/modules/libjuju/docs/_extensions/automembersummary.py
@@ -0,0 +1,112 @@
+# Copyright 2014-2015 Canonical Limited.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import importlib
+import inspect
+import textwrap
+
+from docutils import nodes
+from docutils.statemachine import ViewList
+from sphinx.errors import SphinxError
+from sphinx.util.compat import Directive
+from sphinx.util.nodes import nested_parse_with_titles
+
+
+class AutoMemberSummary(Directive):
+    required_arguments = 1
+
+    def run(self):
+        module_name = self.arguments[0]
+
+        try:
+            module = importlib.import_module(module_name)
+        except ImportError:
+            raise SphinxError("Unable to generate reference docs for %s, "
+                              "could not import" % (module_name))
+
+        divider = '+{:-<80}+'.format('')
+        row = '| {:<78} |'.format
+        lines = []
+        for member_name, member in inspect.getmembers(module):
+            if not self._filter(module_name, member_name, member):
+                continue
+            summary = textwrap.wrap(self._get_summary(member), 78) or ['']
+            link = '`{} <#{}>`_'.format(member_name,
+                                        '.'.join([module_name,
+                                                  member_name]))
+            methods = ['* `{} <#{}>`_'.format(n,
+                                              '.'.join([module_name,
+                                                        member_name,
+                                                        n]))
+                       for n, m in inspect.getmembers(member)
+                       if not n.startswith('_') and inspect.isfunction(m)]
+
+            lines.append(divider)
+            lines.append(row(link))
+            lines.append(divider)
+            for line in summary:
+                lines.append(row(line))
+            if methods:
+                lines.append(row(''))
+                lines.append(row('Methods:'))
+                lines.append(row(''))
+                for i, method in enumerate(methods):
+                    lines.append(row(method))
+        lines.append(divider)
+        content = '\n'.join(lines)
+
+        result = self._parse(content, '<automembersummary>')
+        return result
+
+    def _get_summary(self, member):
+        doc = (member.__doc__ or '').splitlines()
+
+        # strip any leading blank lines
+        while doc and not doc[0].strip():
+            doc.pop(0)
+
+        # strip anything after the first blank line
+        for i, piece in enumerate(doc):
+            if not piece.strip():
+                doc = doc[:i]
+                break
+
+        return " ".join(doc).strip()
+
+    def _filter(self, module_name, member_name, member):
+        if member_name.startswith('_'):
+            return False
+        if hasattr(member, '__module__'):
+            # skip imported classes & functions
+            return member.__module__.startswith(module_name)
+        elif hasattr(member, '__name__'):
+            # skip imported modules
+            return member.__name__.startswith(module_name)
+        else:
+            return False  # skip instances
+        return True
+
+    def _parse(self, rst_text, annotation):
+        result = ViewList()
+        for line in rst_text.split("\n"):
+            result.append(line, annotation)
+        node = nodes.paragraph()
+        node.document = self.state.document
+        nested_parse_with_titles(self.state, result, node)
+        return node.children
+
+
+def setup(app):
+    app.add_directive('automembersummary', AutoMemberSummary)