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doc: netlink: Add hyperlinks to generated Netlink docs 

Update ynl-gen-rst to generate hyperlinks to definitions, attribute
sets and sub-messages from all the places that reference them.

Note that there is a single label namespace for all of the kernel docs.
Hyperlinks within a single netlink doc need to be qualified by the
family name to avoid collisions.

The label format is 'family-type-name' which gives, for example,
'rt-link-attribute-set-link-attrs' as the link id.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20240329135021.52534-3-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Donald Hunter 2024-03-29 13:50:20 +00:00 committed by Jakub Kicinski
parent 4cc1730a90
commit 8c1b74a26d
1 changed files with 42 additions and 18 deletions
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60
tools/net/ynl/ynl-gen-rst.py
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@ -82,9 +82,9 @@ def rst_subsubsection(title: str) -> str:
return f"{title}\n" + "~" * len(title)
def rst_section(title: str) -> str:
def rst_section(namespace: str, prefix: str, title: str) -> str:
"""Add a section to the document"""
return f"\n{title}\n" + "=" * len(title)
return f".. _{namespace}-{prefix}-{title}:\n\n{title}\n" + "=" * len(title)
def rst_subtitle(title: str) -> str:
@ -102,6 +102,17 @@ def rst_list_inline(list_: List[str], level: int = 0) -> str:
return headroom(level) + "[" + ", ".join(inline(i) for i in list_) + "]"
def rst_ref(namespace: str, prefix: str, name: str) -> str:
"""Add a hyperlink to the document"""
mappings = {'enum': 'definition',
'fixed-header': 'definition',
'nested-attributes': 'attribute-set',
'struct': 'definition'}
if prefix in mappings:
prefix = mappings[prefix]
return f":ref:`{namespace}-{prefix}-{name}`"
def rst_header() -> str:
"""The headers for all the auto generated RST files"""
lines = []
@ -159,20 +170,24 @@ def parse_do_attributes(attrs: Dict[str, Any], level: int = 0) -> str:
return "\n".join(lines)
def parse_operations(operations: List[Dict[str, Any]]) -> str:
def parse_operations(operations: List[Dict[str, Any]], namespace: str) -> str:
"""Parse operations block"""
preprocessed = ["name", "doc", "title", "do", "dump"]
linkable = ["fixed-header", "attribute-set"]
lines = []
for operation in operations:
lines.append(rst_section(operation["name"]))
lines.append(rst_section(namespace, 'operation', operation["name"]))
lines.append(rst_paragraph(sanitize(operation["doc"])) + "\n")
for key in operation.keys():
if key in preprocessed:
# Skip the special fields
continue
lines.append(rst_fields(key, operation[key], 0))
value = operation[key]
if key in linkable:
value = rst_ref(namespace, key, value)
lines.append(rst_fields(key, value, 0))
if "do" in operation:
lines.append(rst_paragraph(":do:", 0))
@ -212,14 +227,14 @@ def parse_entries(entries: List[Dict[str, Any]], level: int) -> str:
return "\n".join(lines)
def parse_definitions(defs: Dict[str, Any]) -> str:
def parse_definitions(defs: Dict[str, Any], namespace: str) -> str:
"""Parse definitions section"""
preprocessed = ["name", "entries", "members"]
ignored = ["render-max"] # This is not printed
lines = []
for definition in defs:
lines.append(rst_section(definition["name"]))
lines.append(rst_section(namespace, 'definition', definition["name"]))
for k in definition.keys():
if k in preprocessed + ignored:
continue
@ -237,14 +252,15 @@ def parse_definitions(defs: Dict[str, Any]) -> str:
return "\n".join(lines)
def parse_attr_sets(entries: List[Dict[str, Any]]) -> str:
def parse_attr_sets(entries: List[Dict[str, Any]], namespace: str) -> str:
"""Parse attribute from attribute-set"""
preprocessed = ["name", "type"]
linkable = ["enum", "nested-attributes", "struct", "sub-message"]
ignored = ["checks"]
lines = []
for entry in entries:
lines.append(rst_section(entry["name"]))
lines.append(rst_section(namespace, 'attribute-set', entry["name"]))
for attr in entry["attributes"]:
type_ = attr.get("type")
attr_line = attr["name"]
@ -257,25 +273,31 @@ def parse_attr_sets(entries: List[Dict[str, Any]]) -> str:
for k in attr.keys():
if k in preprocessed + ignored:
continue
lines.append(rst_fields(k, sanitize(attr[k]), 0))
if k in linkable:
value = rst_ref(namespace, k, attr[k])
else:
value = sanitize(attr[k])
lines.append(rst_fields(k, value, 0))
lines.append("\n")
return "\n".join(lines)
def parse_sub_messages(entries: List[Dict[str, Any]]) -> str:
def parse_sub_messages(entries: List[Dict[str, Any]], namespace: str) -> str:
"""Parse sub-message definitions"""
lines = []
for entry in entries:
lines.append(rst_section(entry["name"]))
lines.append(rst_section(namespace, 'sub-message', entry["name"]))
for fmt in entry["formats"]:
value = fmt["value"]
lines.append(rst_bullet(bold(value)))
for attr in ['fixed-header', 'attribute-set']:
if attr in fmt:
lines.append(rst_fields(attr, fmt[attr], 1))
lines.append(rst_fields(attr,
rst_ref(namespace, attr, fmt[attr]),
1))
lines.append("\n")
return "\n".join(lines)
@ -289,7 +311,9 @@ def parse_yaml(obj: Dict[str, Any]) -> str:
lines.append(rst_header())
title = f"Family ``{obj['name']}`` netlink specification"
family = obj['name']
title = f"Family ``{family}`` netlink specification"
lines.append(rst_title(title))
lines.append(rst_paragraph(".. contents:: :depth: 3\n"))
@ -300,7 +324,7 @@ def parse_yaml(obj: Dict[str, Any]) -> str:
# Operations
if "operations" in obj:
lines.append(rst_subtitle("Operations"))
lines.append(parse_operations(obj["operations"]["list"]))
lines.append(parse_operations(obj["operations"]["list"], family))
# Multicast groups
if "mcast-groups" in obj:
@ -310,17 +334,17 @@ def parse_yaml(obj: Dict[str, Any]) -> str:
# Definitions
if "definitions" in obj:
lines.append(rst_subtitle("Definitions"))
lines.append(parse_definitions(obj["definitions"]))
lines.append(parse_definitions(obj["definitions"], family))
# Attributes set
if "attribute-sets" in obj:
lines.append(rst_subtitle("Attribute sets"))
lines.append(parse_attr_sets(obj["attribute-sets"]))
lines.append(parse_attr_sets(obj["attribute-sets"], family))
# Sub-messages
if "sub-messages" in obj:
lines.append(rst_subtitle("Sub-messages"))
lines.append(parse_sub_messages(obj["sub-messages"]))
lines.append(parse_sub_messages(obj["sub-messages"], family))
return "\n".join(lines)