Move label generating code to one place.

src/antsibull_docs/data/docsite/ansible-docsite/plugin-error.rst.j2

@@ -18,7 +18,7 @@
 
 .. Anchors
 
-.. _ansible_collections.@{plugin_name}@_@{plugin_type}@:
+.. _@{ rst_plugin_ref(plugin_name, plugin_type) }@:
 
 .. Title
 

src/antsibull_docs/data/docsite/ansible-docsite/plugin-redirect.rst.j2

@@ -13,7 +13,7 @@
 
 .. Anchors
 
-.. _ansible_collections.@{plugin_name}@_@{plugin_type}@:
+.. _@{ rst_plugin_ref(plugin_name, plugin_type) }@:
 
 .. Title
 

src/antsibull_docs/data/docsite/ansible-docsite/plugin-tombstone.rst.j2

@@ -13,7 +13,7 @@
 
 .. Anchors
 
-.. _ansible_collections.@{plugin_name}@_@{plugin_type}@:
+.. _@{ rst_plugin_ref(plugin_name, plugin_type) }@:
 
 .. Title
 

src/antsibull_docs/data/docsite/ansible-docsite/plugin.rst.j2

@@ -30,7 +30,7 @@
 
 .. Anchors
 
-.. _ansible_collections.@{plugin_name}@_@{plugin_type}@:
+.. _@{ rst_plugin_ref(plugin_name, plugin_type) }@:
 
 .. Anchors: short name for ansible.builtin
 
@@ -84,7 +84,7 @@
     To install it, use: @{ collection | collection_install | rst_code }@.
 {%   if doc['requirements'] %}
     You need further requirements to be able to use this {% if plugin_type == 'module' %}module{% else %}@{ plugin_type }@ plugin{% endif %},
-    see :ref:`Requirements <ansible_collections.@{plugin_name}@_@{plugin_type}@_requirements>` for details.
+    see :ref:`Requirements <@{ rst_requirements_ref(plugin_name, plugin_type) }@>` for details.
 {%   endif %}
 
     To use it in a playbook, specify: :code:`@{plugin_name}@`.

src/antsibull_docs/data/docsite/ansible-docsite/role.rst.j2

@@ -25,7 +25,7 @@
 
 .. Anchors
 
-.. _ansible_collections.@{plugin_name}@_@{plugin_type}@:
+.. _@{ rst_plugin_ref(plugin_name, plugin_type) }@:
 
 .. Title
 

src/antsibull_docs/jinja2/environment.py

@@ -13,6 +13,7 @@
 from jinja2 import BaseLoader, Environment, FileSystemLoader, PackageLoader
 
 from ..markup.rstify import rst_code, rst_escape
+from ..rst_labels import get_plugin_ref, get_requirements_ref
 from ..utils.collection_name_transformer import CollectionNameTransformer
 from . import FilenameGenerator, OutputFormat
 from .filters import (
@@ -38,7 +39,7 @@
 
 def reference_plugin_rst(plugin_name: str, plugin_type: str) -> str:
     fqcn = f"{plugin_name}"
-    return f"\\ :ref:`{rst_escape(fqcn)} <ansible_collections.{fqcn}_{plugin_type}>`\\ "
+    return f"\\ :ref:`{rst_escape(fqcn)} <{get_plugin_ref(fqcn, plugin_type)}>`\\ "
 
 
 def reference_plugin_rst_simplified(plugin_name: str, plugin_type: str) -> str:
@@ -139,6 +140,8 @@ def doc_environment(
 
     env.globals["reference_plugin_rst"] = make_reference_plugin_rst(output_format)
     env.globals["referable_envvars"] = referable_envvars
+    env.globals["rst_plugin_ref"] = get_plugin_ref
+    env.globals["rst_requirements_ref"] = get_requirements_ref
     env.filters["rst_ify"] = make_rst_ify(output_format)
     env.filters["html_ify"] = html_ify
     env.filters["fmt"] = rst_fmt

src/antsibull_docs/rst_labels.py

@@ -0,0 +1,74 @@
+# Author: Felix Fontein <[email protected]>
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or
+# https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: 2023, Ansible Project
+"""
+Label helpers.
+"""
+
+from __future__ import annotations
+
+from antsibull_docs.utils.rst import massage_rst_label
+
+
+def get_plugin_ref(plugin_fqcn: str, plugin_type: str) -> str:
+    return f"ansible_collections.{plugin_fqcn}_{plugin_type}"
+
+
+def get_attribute_ref(
+    plugin_fqcn: str,
+    plugin_type: str,
+    role_entrypoint: str | None,
+    attribute: str,
+) -> str:
+    ref = massage_rst_label(attribute)
+    ep = (
+        f"{role_entrypoint}__"
+        if role_entrypoint is not None and plugin_type == "role"
+        else ""
+    )
+    return f"{get_plugin_ref(plugin_fqcn, plugin_type)}__attribute-{ep}{ref}"
+
+
+def get_option_ref(
+    plugin_fqcn: str,
+    plugin_type: str,
+    role_entrypoint: str | None,
+    option: list[str],
+) -> str:
+    ref = "/".join(massage_rst_label(part) for part in option)
+    ep = (
+        f"{role_entrypoint}__"
+        if role_entrypoint is not None and plugin_type == "role"
+        else ""
+    )
+    return f"{get_plugin_ref(plugin_fqcn, plugin_type)}__parameter-{ep}{ref}"
+
+
+def get_return_value_ref(
+    plugin_fqcn: str,
+    plugin_type: str,
+    role_entrypoint: str | None,
+    return_value: list[str],
+) -> str:
+    ref = "/".join(massage_rst_label(part) for part in return_value)
+    ep = (
+        f"{role_entrypoint}__"
+        if role_entrypoint is not None and plugin_type == "role"
+        else ""
+    )
+    return f"{get_plugin_ref(plugin_fqcn, plugin_type)}__return-{ep}{ref}"
+
+
+def get_requirements_ref(
+    plugin_fqcn: str,
+    plugin_type: str,
+    role_entrypoint: str | None = None,
+) -> str:
+    ep = (
+        f"-{role_entrypoint}"
+        if role_entrypoint is not None and plugin_type == "role"
+        else ""
+    )
+    return f"{get_plugin_ref(plugin_fqcn, plugin_type)}_requirements{ep}"

src/sphinx_antsibull_ext/__init__.py

@@ -18,6 +18,7 @@
 
 from .assets import setup_assets
 from .directives import setup_directives
+from .domains import setup_domains
 from .nodes import setup_nodes
 from .roles import setup_roles
 
@@ -40,6 +41,9 @@ def setup(app):
     # Add directives
     setup_directives(app)
 
+    # Add domains
+    setup_domains(app)
+
     return {
         "parallel_read_safe": True,
         "parallel_write_safe": True,

src/sphinx_antsibull_ext/directives.py

@@ -13,19 +13,21 @@
 from urllib.parse import quote as _urllib_quote
 
 from docutils import nodes
-from docutils.nodes import Element
-from sphinx import addnodes, domains
-from sphinx.builders import Builder
+from sphinx import addnodes
 from sphinx.domains.std import StandardDomain
-from sphinx.environment import BuildEnvironment
-from sphinx.locale import _
 from sphinx.util import logging
 from sphinx.util.docutils import SphinxDirective
 from sphinx.util.nodes import make_id
 
-from antsibull_docs.utils.rst import massage_rst_label
+from antsibull_docs.rst_labels import (
+    get_attribute_ref,
+    get_option_ref,
+    get_requirements_ref,
+    get_return_value_ref,
+)
 
 from .directive_helper import YAMLDirective
+from .domains import AnsibleDomain
 from .nodes import ansible_attribute, ansible_option, ansible_return_value, link_button
 from .schemas.ansible_links import AnsibleLinks
 from .schemas.ansible_plugin import (
@@ -93,51 +95,6 @@ def _run(self, content_str: str, content: AnsibleLinks) -> list[nodes.Node]:
         return [node]
 
 
-class AnsibleDomain(domains.Domain):
-    name = "ansible"
-
-    object_types: dict[str, domains.ObjType] = {
-        "plugin": domains.ObjType(_("plugin"), "plugin", searchprio=-1),
-        "role_entrypoint": domains.ObjType(
-            _("role entrypoint"), "role_entrypoint", searchprio=-1
-        ),
-    }
-
-    @property
-    def objects(self) -> dict[tuple[str, str], tuple[str, str]]:
-        return self.data.setdefault(
-            "objects", {}
-        )  # (objtype, name) -> docname, labelid
-
-    def note_object(
-        self, objtype: str, name: str, labelid: str, location: t.Any = None
-    ) -> None:
-        if (objtype, name) in self.objects:
-            docname = self.objects[objtype, name][0]
-            logger.warning(
-                f"Duplicate {objtype} description of {name}, other instance in {docname}",
-                location=location,
-            )
-        self.objects[objtype, name] = (self.env.docname, labelid)
-
-    def merge_domaindata(self, docnames: list[str], otherdata: dict) -> None:
-        """Merge in data regarding *docnames* from a different domaindata
-        inventory (coming from a subprocess in parallel builds).
-        """
-
-    def resolve_any_xref(
-        self,
-        env: BuildEnvironment,
-        fromdocname: str,
-        builder: Builder,
-        target: str,
-        node: addnodes.pending_xref,
-        contnode: Element,
-    ) -> list[tuple[str, Element]]:
-        """Resolve the pending_xref *node* with the given *target*."""
-        return []
-
-
 class _Plugin(YAMLDirective[AnsiblePlugin]):
     schema = AnsiblePlugin
 
@@ -241,16 +198,12 @@ def _run(
         title = titles[0]
         self.state.document.note_explicit_target(title)
         std = t.cast(StandardDomain, self.env.get_domain("std"))
-        rst_id = (
-            f"ansible_collections.{content.fqcn}_{content.plugin_type}_requirements"
+        rst_id = get_requirements_ref(
+            content.fqcn, content.plugin_type, content.role_entrypoint
         )
         plugin_name = _plugin_name(content.fqcn, content.plugin_type)
         ref_title = f"Requirements of the {plugin_name}"
         if content.role_entrypoint is not None and content.plugin_type == "role":
-            rst_id = (
-                f"ansible_collections.{content.fqcn}_role"
-                f"-{content.role_entrypoint}_requirements"
-            )
             ref_title = f"{ref_title}, {content.role_entrypoint} entrypoint"
         std.note_hyperlink_target(
             rst_id,
@@ -270,9 +223,8 @@ class _Attribute(YAMLDirective[AnsibleAttribute]):
 
     def _run(self, content_str: str, content: AnsibleAttribute) -> list[nodes.Node]:
         html_id = f"attribute-{_percent_encode(content.name)}"
-        rst_id = (
-            f"ansible_collections.{content.fqcn}_{content.plugin_type}"
-            f"__attribute-{content.name}"
+        rst_id = get_attribute_ref(
+            content.fqcn, content.plugin_type, content.role_entrypoint, content.name
         )
         node = ansible_attribute(
             "", content.name, classes=["ansible-option-title"], ids=[html_id]
@@ -309,17 +261,16 @@ def _compile_ids(
     role_entrypoint: str | None,
     full_keys: list[list[str]],
     prefix_type: str,
+    get_ref: t.Callable[[str, str, str | None, list[str]], str],
 ) -> tuple[dict[str, tuple[str, str, str]], list[str]]:
-    rst_id_prefix = f"ansible_collections.{fqcn}_{plugin_type}__{prefix_type}-"
     html_id_prefix = f"{prefix_type}-"
     if role_entrypoint is not None:
-        rst_id_prefix += f"{role_entrypoint}__"
         html_id_prefix += f"{role_entrypoint}--"
     rst_ids = {}
     html_ids = []
     for full_key in full_keys:
         html_id = html_id_prefix + "/".join([_percent_encode(k) for k in full_key])
-        rst_id = rst_id_prefix + "/".join([massage_rst_label(k) for k in full_key])
+        rst_id = get_ref(fqcn, plugin_type, role_entrypoint, full_key)
         html_ids.append(html_id)
         rst_ids[rst_id] = (html_id, ".".join(full_key), ".".join(full_key[1:]))
     return rst_ids, _make_unique(html_ids)
@@ -335,6 +286,7 @@ def _run(self, content_str: str, content: AnsibleOption) -> list[nodes.Node]:
             content.role_entrypoint,
             content.full_keys,
             "parameter",
+            get_option_ref,
         )
         node = ansible_option(
             "",
@@ -392,6 +344,7 @@ def _run(self, content_str: str, content: AnsibleReturnValue) -> list[nodes.Node
             content.role_entrypoint,
             content.full_keys,
             "return",
+            get_return_value_ref,
         )
         node = ansible_return_value(
             "",
@@ -446,6 +399,5 @@ def setup_directives(app):
     """
     Setup directives for a Sphinx app object.
     """
-    app.add_domain(AnsibleDomain)
     for name, directive in DIRECTIVES.items():
         app.add_directive(name, directive)