Files
clan-core/pkgs/docs-from-code/generate/__init__.py
2025-10-14 16:14:40 +02:00

624 lines
19 KiB
Python

"""Module for rendering NixOS options documentation from JSON format."""
# Options are available in the following format:
# https://github.com/nixos/nixpkgs/blob/master/nixos/lib/make-options-doc/default.nix
#
# ```json
# {
# ...
# "fileSystems.<name>.options": {
# "declarations": ["nixos/modules/tasks/filesystems.nix"],
# "default": {
# "_type": "literalExpression",
# "text": "[\n \"defaults\"\n]"
# },
# "description": "Options used to mount the file system.",
# "example": {
# "_type": "literalExpression",
# "text": "[\n \"data=journal\"\n]"
# },
# "loc": ["fileSystems", "<name>", "options"],
# "readOnly": false,
# "type": "non-empty (list of string (with check: non-empty))"
# "relatedPackages": "- [`pkgs.tmux`](\n https://search.nixos.org/packages?show=tmux&sort=relevance&query=tmux\n )\n",
# }
# }
# ```
import json
import os
import sys
from dataclasses import dataclass, field
from pathlib import Path
from typing import Any
from clan_lib.errors import ClanError
from clan_lib.services.modules import (
CategoryInfo,
ModuleManifest,
)
# Get environment variables
CLAN_CORE_PATH = Path(os.environ["CLAN_CORE_PATH"])
CLAN_CORE_DOCS = Path(os.environ["CLAN_CORE_DOCS"])
CLAN_OPTIONS_PATH = Path(os.environ["CLAN_OPTIONS_PATH"])
# Options how to author clan.modules
# perInstance, perMachine, ...
CLAN_SERVICE_INTERFACE = os.environ.get("CLAN_SERVICE_INTERFACE")
CLAN_MODULES_VIA_SERVICE = os.environ.get("CLAN_MODULES_VIA_SERVICE")
OUT = os.environ.get("out") # noqa: SIM112
def sanitize(text: str) -> str:
return text.replace(">", "\\>")
def replace_git_url(text: str) -> tuple[str, str]:
res = text
name = Path(res).name
if text.startswith("https://git.clan.lol/clan/clan-core/src/branch/main/"):
name = str(Path(*Path(text).parts[7:]))
return (res, name)
def render_option_header(name: str) -> str:
return f"# {name}\n"
def join_lines_with_indentation(lines: list[str], indent: int = 4) -> str:
"""Joins multiple lines with a specified number of whitespace characters as indentation.
Args:
lines (list of str): The lines of text to join.
indent (int): The number of whitespace characters to use as indentation for each line.
Returns:
str: The indented and concatenated string.
"""
# Create the indentation string (e.g., four spaces)
indent_str = " " * indent
# Join each line with the indentation added at the beginning
return "\n".join(indent_str + line for line in lines)
def sanitize_anchor(text: str) -> str:
parts = text.split(".")
res = []
for part in parts:
if "<" in part:
continue
res.append(part)
return ".".join(res)
def render_option(
name: str,
option: dict[str, Any],
level: int = 3,
short_head: str | None = None,
) -> str:
read_only = option.get("readOnly")
res = f"""
{"#" * level} {sanitize(name) if short_head is None else sanitize(short_head)} {"{: #" + sanitize_anchor(name) + "}" if level > 1 else ""}
"""
res += f"""
{f"**Attribute: `{name}`**" if short_head is not None else ""}
{"**Readonly**" if read_only else ""}
{option.get("description", "")}
"""
if option.get("type"):
res += f"""
**Type**: `{option["type"]}`
"""
if option.get("default"):
res += f"""
**Default**:
```nix
{option.get("default", {}).get("text") if option.get("default") else "No default set."}
```
"""
example = option.get("example", {}).get("text")
if example:
example_indented = join_lines_with_indentation(example.split("\n"))
res += f"""
???+ example
```nix
{example_indented}
```
"""
if option.get("relatedPackages"):
res += f"""
### Related Packages
{option["relatedPackages"]}
"""
decls = option.get("declarations", [])
if decls:
source_path, name = replace_git_url(decls[0])
name = name.split(",")[0]
source_path = source_path.split(",")[0]
res += f"""
:simple-git: Declared in: [{name}]({source_path})
"""
res += "\n\n"
return res
def print_options(
options_file: str,
head: str,
no_options: str,
replace_prefix: str | None = None,
) -> str:
res = ""
with (Path(options_file) / "share/doc/nixos/options.json").open() as f:
options: dict[str, dict[str, Any]] = json.load(f)
res += head if len(options.items()) else no_options
for option_name, info in options.items():
if replace_prefix:
display_name = option_name.replace(replace_prefix + ".", "")
else:
display_name = option_name
res += render_option(display_name, info, 4)
return res
def module_header(module_name: str) -> str:
return f"# {module_name}\n\n"
clan_core_descr = """
`clan.core` is always present in a clan machine
* It is a module of class **`nixos`**
* Provides a set of common options for every machine (in addition to the NixOS options)
Your can customize your machines behavior with the configuration [options](#module-options) provided below.
"""
options_head = """
### Module Options
The following options are available for this module.
"""
def produce_clan_core_docs() -> None:
if not CLAN_CORE_DOCS:
msg = f"Environment variables are not set correctly: $CLAN_CORE_DOCS={CLAN_CORE_DOCS}"
raise ClanError(msg)
if not OUT:
msg = f"Environment variables are not set correctly: $out={OUT}"
raise ClanError(msg)
# A mapping of output file to content
core_outputs: dict[str, str] = {}
with CLAN_CORE_DOCS.open() as f:
options: dict[str, dict[str, Any]] = json.load(f)
module_name = "clan.core"
transform = {n.replace("clan.core.", ""): v for n, v in options.items()}
split = split_options_by_root(transform)
# Prepopulate the index file header
indexfile = f"{module_name}/index.md"
core_outputs[indexfile] = module_header(module_name) + clan_core_descr
core_outputs[indexfile] += """!!! info "Submodules"\n"""
for submodule_name, split_options in split.items():
root = options_to_tree(split_options)
module = root.suboptions[0]
module_type = module.info.get("type")
if module_type is not None and "submodule" not in module_type:
continue
core_outputs[indexfile] += (
f" - [{submodule_name}](../../reference/clan.core/{submodule_name}.md)\n"
)
core_outputs[indexfile] += options_head
for submodule_name, split_options in split.items():
outfile = f"{module_name}/{submodule_name}.md"
print(
f"[clan_core.{submodule_name}] Rendering option of: {submodule_name}... {outfile}",
)
init_level = 1
root = options_to_tree(split_options, debug=True)
print(f"Submodule {submodule_name} - suboptions", len(root.suboptions))
module = root.suboptions[0]
print("type", module.info.get("type"))
module_type = module.info.get("type")
if module_type is not None and "submodule" not in module_type:
outfile = indexfile
init_level = 2
output = ""
for option in root.suboptions:
output += options_docs_from_tree(
option,
init_level=init_level,
prefix=["clan", "core"],
)
# Append the content
if outfile not in core_outputs:
core_outputs[outfile] = output
else:
core_outputs[outfile] += output
for outfile, output in core_outputs.items():
(Path(OUT) / "reference" / outfile).parent.mkdir(
parents=True, exist_ok=True
)
with (Path(OUT) / "reference" / outfile).open("w") as of:
of.write(output)
def render_categories(
categories: list[str],
categories_info: dict[str, CategoryInfo],
) -> str:
res = """<div style="display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px;">"""
for cat in categories:
color = categories_info[cat]["color"]
res += f"""
<div style="background-color: {color}; color: white; padding: 10px; border-radius: 20px; text-align: center;">
{cat}
</div>
"""
res += "</div>"
return res
def produce_clan_service_docs() -> None:
if not CLAN_MODULES_VIA_SERVICE:
msg = f"Environment variables are not set correctly: $CLAN_MODULES_VIA_SERVICE={CLAN_MODULES_VIA_SERVICE}"
raise ClanError(msg)
if not CLAN_CORE_PATH:
msg = f"Environment variables are not set correctly: $CLAN_CORE_PATH={CLAN_CORE_PATH}"
raise ClanError(msg)
if not OUT:
msg = f"Environment variables are not set correctly: $out={OUT}"
raise ClanError(msg)
with Path(CLAN_MODULES_VIA_SERVICE).open() as f3:
service_links: dict[str, dict[str, dict[str, Any]]] = json.load(f3)
for module_name, module_info in service_links.items():
# Skip specific modules that are not ready for documentation
if module_name in ["internet", "tor"]:
continue
output = f"# {module_name}\n\n"
# output += f"`clan.modules.{module_name}`\n"
output += f"*{module_info['manifest']['description']}*\n"
# output += "## Categories\n\n"
output += render_categories(
module_info["manifest"]["categories"],
ModuleManifest.categories_info(),
)
output += f"{module_info['manifest']['readme']}\n"
output += "\n---\n\n## Roles\n"
output += f"The {module_name} service has the following roles:\n\n"
for role_name in module_info["roles"]:
output += f"- {role_name}\n"
for role_name, role_filename in module_info["roles"].items():
output += print_options(
role_filename,
f"## Options for the `{role_name}` role",
"This role has no configuration",
replace_prefix=f"clan.{module_name}",
)
outfile = Path(OUT) / "services/official" / f"{module_name}.md"
outfile.parent.mkdir(
parents=True,
exist_ok=True,
)
with outfile.open("w") as of:
of.write(output)
def split_options_by_root(options: dict[str, Any]) -> dict[str, dict[str, Any]]:
"""Split the flat dictionary of options into a dict of which each entry will construct complete option trees.
{
"a": { Data }
"a.b": { Data }
"c": { Data }
}
->
{
"a": {
"a": { Data },
"a.b": { Data }
}
"c": {
"c": { Data }
}
}
"""
res: dict[str, dict[str, Any]] = {}
for key, value in options.items():
parts = key.split(".")
root = parts[0]
if root not in res:
res[root] = {}
res[root][key] = value
return res
def produce_clan_service_author_docs() -> None:
if not CLAN_SERVICE_INTERFACE:
msg = f"Environment variables are not set correctly: CLAN_SERVICE_INTERFACE={CLAN_SERVICE_INTERFACE}. Expected a path to the optionsJSON"
raise ClanError(msg)
if not OUT:
msg = f"Environment variables are not set correctly: $out={OUT}"
raise ClanError(msg)
output = """
This document describes the structure and configurable attributes of a `clan.service` module.
Typically needed by module authors to define roles, behavior and metadata for distributed services.
!!! Note
This is not a user-facing documentation, but rather meant as a reference for *module authors*
See: [clanService Authoring Guide](../../guides/services/community.md)
"""
# Inventory options are already included under the clan attribute
# We just omitted them in the clan docs, because we want a separate output for the inventory model
with Path(CLAN_SERVICE_INTERFACE).open() as f:
options: dict[str, dict[str, Any]] = json.load(f)
options_tree = options_to_tree(options, debug=True)
# Find the inventory options
# Render the inventory options
# This for loop excludes the root node
# for option in options_tree.suboptions:
output += options_docs_from_tree(options_tree, init_level=2)
outfile = Path(OUT) / "reference/options" / "clan_service.md"
outfile.parent.mkdir(parents=True, exist_ok=True)
with Path.open(outfile, "w") as of:
of.write(output)
def produce_inventory_docs() -> None:
if not CLAN_OPTIONS_PATH:
msg = f"Environment variables are not set correctly: CLAN_OPTIONS_PATH={CLAN_OPTIONS_PATH}. Expected a path to the optionsJSON"
raise ClanError(msg)
if not OUT:
msg = f"Environment variables are not set correctly: $out={OUT}"
raise ClanError(msg)
output = """# Inventory Submodule
This provides an overview of the available options of the `inventory` model.
It can be set via the `inventory` attribute of the [`clan`](../../reference/options/clan_inventory.md) function, or via the [`clan.inventory`](../../reference/options/clan_inventory.md) attribute of flake-parts.
"""
# Inventory options are already included under the clan attribute
# We just omitted them in the clan docs, because we want a separate output for the inventory model
with Path(CLAN_OPTIONS_PATH).open() as f:
options: dict[str, dict[str, Any]] = json.load(f)
clan_root_option = options_to_tree(options)
# Find the inventory options
inventory_opt: None | Option = None
for opt in clan_root_option.suboptions:
if opt.name == "inventory":
inventory_opt = opt
break
if not inventory_opt:
print("No inventory options found.")
sys.exit(1)
# Render the inventory options
# This for loop excludes the root node
for option in inventory_opt.suboptions:
output += options_docs_from_tree(option, init_level=2)
outfile = Path(OUT) / "reference/options" / "clan_inventory.md"
outfile.parent.mkdir(parents=True, exist_ok=True)
with Path.open(outfile, "w") as of:
of.write(output)
def produce_clan_options_docs() -> None:
if not CLAN_OPTIONS_PATH:
msg = f"Environment variables are not set correctly: CLAN_OPTIONS_PATH={CLAN_OPTIONS_PATH}. Expected a path to the optionsJSON"
raise ClanError(msg)
if not OUT:
msg = f"Environment variables are not set correctly: $out={OUT}"
raise ClanError(msg)
output = """# Clan Options
This provides an overview of the available options
Those can be set via [`clan-core.lib.clan`](../../reference/options/clan.md) function,
or via the [`clan`](../../reference/options/clan.md) attribute of flake-parts.
"""
# Inventory options are already included under the clan attribute
# We just omitted them in the clan docs, because we want a separate output for the inventory model
with Path(CLAN_OPTIONS_PATH).open() as f:
options: dict[str, dict[str, Any]] = json.load(f)
clan_root_option = options_to_tree(options)
# Render the inventory options
# This for loop excludes the root node
# Exclude inventory options
for option in clan_root_option.suboptions:
if "inventory" in option.name:
output += """## Inventory
Attribute: `inventory`
See: [Inventory Submodule](../../reference/options/clan_inventory.md)
"""
continue
output += options_docs_from_tree(option, init_level=2)
outfile = Path(OUT) / "reference/options" / "clan.md"
outfile.parent.mkdir(parents=True, exist_ok=True)
with Path.open(outfile, "w") as of:
of.write(output)
@dataclass
class Option:
name: str
path: list[str]
info: dict[str, Any]
suboptions: list["Option"] = field(default_factory=list)
def option_short_name(option_name: str) -> str:
parts = option_name.split(".")
short_name = ""
for part in parts[1:]:
if "<" in part:
continue
short_name += ("." + part) if short_name else part
return short_name
def options_to_tree(options: dict[str, Any], debug: bool = False) -> Option:
"""Convert the options dictionary to a tree structure."""
# Helper function to create nested structure
def add_to_tree(path_parts: list[str], info: Any, current_node: Option) -> None:
if not path_parts:
return
name = path_parts[0]
remaining_path = path_parts[1:]
# Look for an existing suboption
for sub in current_node.suboptions:
if sub.name == name:
add_to_tree(remaining_path, info, sub)
return
# If no existing suboption is found, create a new one
new_option = Option(
name=name,
path=[*current_node.path, name],
info={}, # Populate info only at the final leaf
)
current_node.suboptions.append(new_option)
# If it's a leaf node, populate info
if not remaining_path:
new_option.info = info
else:
add_to_tree(remaining_path, info, new_option)
# Create the root option
root = Option(name="<root>", path=[], info={})
# Process each key-value pair in the dictionary
for key, value in options.items():
path_parts = key.split(".")
add_to_tree(path_parts, value, root)
def print_tree(option: Option, level: int = 0) -> None:
print(" " * level + option.name + ":", option.path)
for sub in option.suboptions:
print_tree(sub, level + 1)
# Example usage
if debug:
print("Options tree:")
print_tree(root)
return root
def options_docs_from_tree(
root: Option,
init_level: int = 1,
prefix: list[str] | None = None,
) -> str:
"""Eender the options from the tree structure.
Args:
root (Option): The root option node.
init_level (int): The initial level of indentation.
prefix (list str): Will be printed as common prefix of all attribute names.
"""
def render_tree(option: Option, level: int = init_level) -> str:
output = ""
should_render = not option.name.startswith("<") and not option.name.startswith(
"_",
)
if should_render:
# short_name = option_short_name(option.name)
path = ".".join(prefix + option.path) if prefix else ".".join(option.path)
output += render_option(
path,
option.info,
level=level,
short_head=option.name,
)
for sub in option.suboptions:
h_increment = 1 if should_render else 0
if "_module" in sub.path:
continue
output += render_tree(sub, level + h_increment)
return output
return render_tree(root)
if __name__ == "__main__":
produce_clan_core_docs()
produce_inventory_docs()
produce_clan_options_docs()
produce_clan_service_author_docs()
produce_clan_service_docs()