Merge with default

CHANGES

@@ -20,6 +20,8 @@ Incompatible changes
   templates directory.
 * Custom domains should implement the new `Domain.resolve_any_xref`
   method to make the `any` role work properly.
+* gettext builder: disable extracting/apply 'index' node by default. Please set
+  'index' to :confval:`gettext_enables` to enable extracting index entries.
 
 Features added
 --------------
@@ -87,6 +89,8 @@ Features added
   target. Thanks to Takeshi Komiya.
 * PR#298: Add new API: :meth:`~sphinx.application.Sphinx.add_latex_package`.
   Thanks to Takeshi Komiya.
+* #1344: add :confval:`gettext_enables` to enable extracting 'index' to gettext
+  catalog output / applying translation catalog to generated documentation.
 
 Bugs fixed
 ----------

doc/config.rst

@@ -447,6 +447,16 @@ documentation on :ref:`intl` for details.
 
    .. versionadded:: 1.3
 
+.. confval:: gettext_enables
+
+   To specify names to enable gettext extracting and translation applying for
+   i18n. You can specify below names:
+
+   :index: index terms
+
+   The default is ``[]``.
+
+   .. versionadded:: 1.3
 
 .. _html-options:
 

sphinx/builders/gettext.py

@@ -108,15 +108,16 @@ class I18nBuilder(Builder):
         for node, msg in extract_messages(doctree):
             catalog.add(msg, node)
 
-        # Extract translatable messages from index entries.
-        for node, entries in traverse_translatable_index(doctree):
-            for typ, msg, tid, main in entries:
-                for m in split_index_msg(typ, msg):
-                    if typ == 'pair' and m in pairindextypes.values():
-                        # avoid built-in translated message was incorporated
-                        # in 'sphinx.util.nodes.process_index_entry'
-                        continue
-                    catalog.add(m, node)
+        if 'index' in self.env.config.gettext_enables:
+            # Extract translatable messages from index entries.
+            for node, entries in traverse_translatable_index(doctree):
+                for typ, msg, tid, main in entries:
+                    for m in split_index_msg(typ, msg):
+                        if typ == 'pair' and m in pairindextypes.values():
+                            # avoid built-in translated message was incorporated
+                            # in 'sphinx.util.nodes.process_index_entry'
+                            continue
+                        catalog.add(m, node)
 
 
 # determine tzoffset once to remain unaffected by DST change during build

sphinx/config.py

@@ -211,6 +211,7 @@ class Config(object):
         gettext_location = (True, 'gettext'),
         gettext_uuid = (True, 'gettext'),
         gettext_auto_build = (True, 'env'),
+        gettext_enables = ([], 'env'),
 
         # XML options
         xml_pretty = (True, 'env'),

sphinx/transforms.py

@@ -462,22 +462,23 @@ class Locale(Transform):
             node.children = patch.children
             node['translated'] = True
 
-        # Extract and translate messages for index entries.
-        for node, entries in traverse_translatable_index(self.document):
-            new_entries = []
-            for type, msg, tid, main in entries:
-                msg_parts = split_index_msg(type, msg)
-                msgstr_parts = []
-                for part in msg_parts:
-                    msgstr = catalog.gettext(part)
-                    if not msgstr:
-                        msgstr = part
-                    msgstr_parts.append(msgstr)
+        if 'index' in env.config.gettext_enables:
+            # Extract and translate messages for index entries.
+            for node, entries in traverse_translatable_index(self.document):
+                new_entries = []
+                for type, msg, tid, main in entries:
+                    msg_parts = split_index_msg(type, msg)
+                    msgstr_parts = []
+                    for part in msg_parts:
+                        msgstr = catalog.gettext(part)
+                        if not msgstr:
+                            msgstr = part
+                        msgstr_parts.append(msgstr)
 
-                new_entries.append((type, ';'.join(msgstr_parts), tid, main))
+                    new_entries.append((type, ';'.join(msgstr_parts), tid, main))
 
-            node['raw_entries'] = entries
-            node['entries'] = new_entries
+                node['raw_entries'] = entries
+                node['entries'] = new_entries
 
 
 class RemoveTranslatableInline(Transform):

tests/roots/test-intl/conf.py

@@ -6,3 +6,4 @@ keep_warnings = True
 templates_path = ['_templates']
 html_additional_pages = {'index': 'index.html'}
 release = version = '2013.120'
+gettext_enables = ['index']

tests/test_build_gettext.py

@@ -113,6 +113,38 @@ def test_gettext_index_entries(app, status, warning):
         "Exception",
         "Statement",
         "Builtin",
+        ]
+    for expect in expected_msgids:
+        assert expect in msgids
+        msgids.remove(expect)
+
+    # unexpected msgid existent
+    assert msgids == []
+
+
+@with_app('gettext', testroot='intl',
+          confoverrides={'gettext_compact': False, 'gettext_enables': []})
+def test_gettext_disable_index_entries(app, status, warning):
+    # regression test for #976
+    app.builder.build(['index_entries'])
+
+    _msgid_getter = re.compile(r'msgid "(.*)"').search
+
+    def msgid_getter(msgid):
+        m = _msgid_getter(msgid)
+        if m:
+            return m.groups()[0]
+        return None
+
+    pot = (app.outdir / 'index_entries.pot').text(encoding='utf-8')
+    msgids = [_f for _f in map(msgid_getter, pot.splitlines()) if _f]
+
+    expected_msgids = [
+        "i18n with index entries",
+        "index target section",
+        "this is :index:`Newsletter` target paragraph.",
+        "various index entries",
+        "That's all.",
     ]
     for expect in expected_msgids:
         assert expect in msgids

tests/test_build_latex.py

@@ -98,5 +98,6 @@ def test_latex_add_latex_package(app, status, warning):
     app.add_latex_package('foo')
     app.add_latex_package('bar', 'baz')
     app.builder.build_all()
-    assert '\\usepackage{foo}' in (app.outdir / 'SphinxTests.tex').text()
-    assert '\\usepackage[baz]{bar}' in (app.outdir / 'SphinxTests.tex').text()
+    result = (app.outdir / 'SphinxTests.tex').text(encoding='utf8')
+    assert '\\usepackage{foo}' in result
+    assert '\\usepackage[baz]{bar}' in result