docs: setup zensical (#37838)

This commit is contained in:
Adeeb Shihadeh
2026-04-15 15:46:43 -07:00
committed by GitHub
parent 31403f4a5c
commit 83e6e7da93
18 changed files with 478 additions and 306 deletions
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# Docs development
The `docs/` tree is the source for [docs.comma.ai](https://docs.comma.ai).
The site is updated on pushes to master by this [workflow](../.github/workflows/docs.yaml).
Those commands must be run in the root directory of openpilot, **not /docs**
**1. Install the docs dependencies**
``` bash
uv pip install .[docs]
```
**2. Build the new site**
``` bash
docs build
```
**3. Run the new site locally**
``` bash
docs serve
```
References:
* https://zensical.org/docs/
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# openpilot docs
This is the source for [docs.comma.ai](https://docs.comma.ai).
The site is updated on pushes to master by this [workflow](../.github/workflows/docs.yaml).
## Development
NOTE: Those commands must be run in the root directory of openpilot, **not /docs**
**1. Install the docs dependencies**
``` bash
uv pip install .[docs]
```
**2. Build the new site**
``` bash
mkdocs build
```
**3. Run the new site locally**
``` bash
mkdocs serve
```
References:
* https://www.mkdocs.org/getting-started/
* https://github.com/ntno/mkdocs-terminal
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../../selfdrive/assets/icons_mici/settings/comma_icon.png
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# openpilot glossary
* **onroad**: openpilot's system state while ignition is on
* **offroad**: openpilot's system state while ignition is off
* **route**: a route is a recording of an onroad session
* **segment**: routes are split into one minute chunks called segments.
* **comma connect**: the web viewer for all your routes; check it out at [connect.comma.ai](https://connect.comma.ai).
* **panda**: this is the secondary processor on the device that implements the functional safety and directly talks to the car over CAN. See the [panda repo](https://github.com/commaai/panda).
* **comma four**: the latest hardware by comma.ai for running openpilot. more info at [comma.ai/shop/comma-four](https://www.comma.ai/shop/comma-four).
{{GLOSSARY_DEFINITIONS}}
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[data-tooltip] {
position: relative;
display: inline-block;
border-bottom: 1px dotted black;
}
[data-tooltip] .tooltip-content {
width: max-content;
max-width: 25em;
position: absolute;
top: 100%;
left: 50%;
transform: translateX(-50%);
background-color: white;
color: #404040;
box-shadow: 0 4px 14px 0 rgba(0,0,0,.2), 0 0 0 1px rgba(0,0,0,.05);
padding: 10px;
font: 14px/1.5 Lato, proxima-nova, Helvetica Neue, Arial, sans-serif;
text-decoration: none;
opacity: 0;
visibility: hidden;
transition: opacity 0.1s, visibility 0s;
z-index: 1000;
pointer-events: none; /* Prevent accidental interaction */
}
[data-tooltip]:hover .tooltip-content {
opacity: 1;
visibility: visible;
pointer-events: auto; /* Allow interaction when visible */
}
.tooltip-content .tooltip-glossary-link {
display: inline-block;
margin-top: 8px;
font-size: 12px;
color: #007bff;
text-decoration: none;
}
.tooltip-content .tooltip-glossary-link:hover {
color: #0056b3;
text-decoration: underline;
}
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import posixpath
import re
import tomllib
import xml.etree.ElementTree as ET
from pathlib import Path
from markdown.extensions import Extension
from markdown.preprocessors import Preprocessor
from markdown.treeprocessors import Treeprocessor
from zensical.extensions.links import LinksProcessor
GlossaryTerm = tuple[str, re.Pattern[str], str]
GLOSSARY_FILE = Path(__file__).with_name("glossary.toml")
GLOSSARY_PAGE = "concepts/glossary.md"
GLOSSARY_PLACEHOLDER = "{{GLOSSARY_DEFINITIONS}}"
SKIP_TAGS = {
"a",
"code",
"h1",
"h2",
"h3",
"h4",
"h5",
"h6",
"kbd",
"pre",
"script",
"style",
}
def clean_tooltip(description: str) -> str:
text = re.sub(r"\[([^\]]+)]\([^)]+\)", r"\1", description)
text = re.sub(r"`([^`]+)`", r"\1", text)
text = re.sub(r"[*_~]", "", text)
return re.sub(r"\s+", " ", text).strip()
def load_glossary() -> tuple[list[GlossaryTerm], str]:
with GLOSSARY_FILE.open("rb") as f:
glossary_data = tomllib.load(f).get("glossary", {})
glossary: list[GlossaryTerm] = []
rendered = []
for key, value in glossary_data.items():
label = str(key).strip().replace("_", " ")
description = str(value).strip()
if not description:
continue
slug = label.replace(" ", "-").replace("_", "-").lower()
glossary.append((slug, re.compile(rf"(?<!\w){re.escape(label)}(?!\w)", re.IGNORECASE), clean_tooltip(description)))
rendered.append(f'* <span id="{slug}"></span>**{label}**: {description}')
return glossary, "\n".join(rendered)
class GlossaryPreprocessor(Preprocessor):
def __init__(self, md, glossary: str):
super().__init__(md)
self.glossary = glossary
def run(self, lines: list[str]) -> list[str]:
markdown = "\n".join(lines)
if GLOSSARY_PLACEHOLDER not in markdown:
return lines
return markdown.replace(GLOSSARY_PLACEHOLDER, self.glossary).splitlines()
class GlossaryTreeprocessor(Treeprocessor):
def __init__(self, md, glossary: list[GlossaryTerm]):
super().__init__(md)
self.glossary = glossary
self.seen: set[str] = set()
def run(self, root: ET.Element) -> None:
at = self.md.treeprocessors.get_index_for_name("zrelpath")
processor = self.md.treeprocessors[at]
if not isinstance(processor, LinksProcessor):
raise TypeError("Links processor not registered")
if processor.path == GLOSSARY_PAGE:
return
self.seen.clear()
glossary_href = f"{posixpath.relpath(GLOSSARY_PAGE, posixpath.dirname(processor.path) or '.')}#"
self._walk(root, glossary_href)
def _walk(self, element: ET.Element, glossary_href: str) -> None:
if element.tag in SKIP_TAGS or element.attrib.get("data-glossary-skip") is not None:
return
self._replace(element, glossary_href)
idx = 0
while idx < len(element):
child = element[idx]
self._walk(child, glossary_href)
idx = self._replace(element, glossary_href, idx) + 1
def _replace(self, parent: ET.Element, glossary_href: str, index: int | None = None) -> int:
child = None if index is None else parent[index]
text = parent.text if child is None else child.tail
pieces = self._pieces(text or "", glossary_href)
if not pieces:
return -1 if index is None else index
if child is None:
parent.text = pieces[0] if isinstance(pieces[0], str) else ""
insert_at = 0 if isinstance(pieces[0], str) else -1
else:
assert index is not None
child.tail = pieces[0] if isinstance(pieces[0], str) else ""
insert_at = index
start = 1 if isinstance(pieces[0], str) else 0
previous = child
for piece in pieces[start:]:
if isinstance(piece, str):
previous.tail = (previous.tail or "") + piece
continue
insert_at += 1
parent.insert(insert_at, piece)
previous = piece
return insert_at
def _pieces(self, text: str, glossary_href: str) -> list[str | ET.Element]:
if not text.strip():
return []
pieces: list[str | ET.Element] = []
cursor = 0
while True:
best = None
for slug, pattern, tooltip in self.glossary:
if slug in self.seen:
continue
found = pattern.search(text, cursor)
if found is None:
continue
candidate = (slug, tooltip, found.start(), found.end())
if best is None:
best = candidate
continue
_, best_start, best_end = best
_, current_start, current_end = candidate
if current_start < best_start:
best = candidate
continue
if current_start == best_start and current_end - current_start > best_end - best_start:
best = candidate
if best is None:
break
slug, tooltip, start, end = best
if start > cursor:
pieces.append(text[cursor:start])
link = ET.Element(
"a",
{
"class": "glossary-term",
"data-glossary-term": "",
"href": f"{glossary_href}{slug}",
},
)
ET.SubElement(link, "span", {"class": "glossary-term__label"}).text = text[start:end]
ET.SubElement(
link,
"span",
{
"class": "glossary-term__tooltip",
"data-search-exclude": "",
},
).text = tooltip
pieces.append(link)
self.seen.add(slug)
cursor = end
if not pieces:
return []
if cursor < len(text):
pieces.append(text[cursor:])
return pieces
class GlossaryExtension(Extension):
def extendMarkdown(self, md) -> None:
md.registerExtension(self)
glossary, rendered = load_glossary()
md.preprocessors.register(
GlossaryPreprocessor(md, rendered),
"docs-ext-glossary-preprocessor",
27,
)
md.treeprocessors.register(
GlossaryTreeprocessor(md, glossary),
"docs-ext-glossary-treeprocessor",
0,
)
def makeExtension(**kwargs) -> GlossaryExtension:
return GlossaryExtension(**kwargs)
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[glossary]
onroad = "openpilot's system state while ignition is on."
offroad = "openpilot's system state while ignition is off."
route = "A route is a recording of an onroad session."
segment = "Routes are split into one minute chunks called segments."
"comma connect" = "The web viewer for all your routes; check it out at [connect.comma.ai](https://connect.comma.ai)."
panda = "The secondary processor on the device that implements the functional safety and directly talks to the car over CAN. See the [panda repo](https://github.com/commaai/panda)."
"comma four" = "The latest hardware by comma.ai for running openpilot. More info at [comma.ai/shop/comma-four](https://www.comma.ai/shop/comma-four)."
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import re
import tomllib
def load_glossary(file_path="docs/glossary.toml"):
with open(file_path, "rb") as f:
glossary_data = tomllib.load(f)
return glossary_data.get("glossary", {})
def generate_anchor_id(name):
return name.replace(" ", "-").replace("_", "-").lower()
def format_markdown_term(name, definition):
anchor_id = generate_anchor_id(name)
markdown = f"* [**{name.replace('_', ' ').title()}**](#{anchor_id})"
if definition.get("abbreviation"):
markdown += f" *({definition['abbreviation']})*"
if definition.get("description"):
markdown += f": {definition['description']}\n"
return markdown
def glossary_markdown(vocabulary):
markdown = ""
for category, terms in vocabulary.items():
markdown += f"## {category.replace('_', ' ').title()}\n\n"
for name, definition in terms.items():
markdown += format_markdown_term(name, definition)
return markdown
def format_tooltip_html(term_key, definition, html):
display_term = term_key.replace("_", " ").title()
clean_description = re.sub(r"\[(.+)]\(.+\)", r"\1", definition["description"])
glossary_link = (
f"<a href='/concepts/glossary#{term_key}' class='tooltip-glossary-link' title='View in glossary'>Glossary🔗</a>"
)
return re.sub(
re.escape(display_term),
lambda
match: f"<span data-tooltip>{match.group(0)}<span class='tooltip-content'>{clean_description} {glossary_link}</span></span>",
html,
flags=re.IGNORECASE,
)
def apply_tooltip(_term_key, _definition, pattern, html):
return re.sub(
pattern,
lambda match: format_tooltip_html(_term_key, _definition, match.group(0)),
html,
flags=re.IGNORECASE,
)
def tooltip_html(vocabulary, html):
for _category, terms in vocabulary.items():
for term_key, definition in terms.items():
if definition.get("description"):
pattern = rf"(?<!\w){re.escape(term_key.replace('_', ' ').title())}(?![^<]*<\/a>)(?!\([^)]*\))"
html = apply_tooltip(term_key, definition, pattern, html)
return html
# Page Hooks
def on_page_markdown(markdown, **kwargs):
glossary = load_glossary()
return markdown.replace("{{GLOSSARY_DEFINITIONS}}", glossary_markdown(glossary))
def on_page_content(html, **kwargs):
if kwargs.get("page").title == "Glossary":
return html
glossary = load_glossary()
return tooltip_html(glossary, html)
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getting-started/what-is-openpilot.md
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.md-logo img {
filter: invert(1);
}
.glossary-term {
position: relative;
color: inherit;
text-decoration: none;
}
.glossary-term__label {
border-bottom: 1px dotted currentColor;
}
.glossary-term__tooltip {
position: absolute;
top: calc(100% + 0.4rem);
left: 50%;
width: max-content;
max-width: min(30rem, 80vw);
padding: 0.65rem 0.8rem;
border-radius: 0.6rem;
background: rgb(26 26 26 / 96%);
color: white;
box-shadow: 0 0.6rem 1.8rem rgb(0 0 0 / 22%);
font-size: 0.85rem;
line-height: 1.45;
opacity: 0;
pointer-events: none;
transform: translateX(-50%) translateY(-0.15rem);
transition: opacity 120ms ease, transform 120ms ease;
visibility: hidden;
z-index: 20;
}
.glossary-term:hover .glossary-term__tooltip,
.glossary-term:focus-visible .glossary-term__tooltip,
.glossary-term:focus-within .glossary-term__tooltip {
opacity: 1;
transform: translateX(-50%) translateY(0);
visibility: visible;
}