esp-idf/docs/link-roles.py
Marius Vikhammer e4af49ca23 docs: fix "link to translation" being broken
The translation link would link a specifc commit hash instead of
the release name.
2021-03-10 18:55:43 +08:00

101 lines
4.0 KiB
Python

# based on http://protips.readthedocs.io/link-roles.html
from __future__ import print_function
from __future__ import unicode_literals
import re
import os
from docutils import nodes
from local_util import run_cmd_get_output
from sphinx.transforms.post_transforms import SphinxPostTransform
def get_github_rev():
path = run_cmd_get_output('git rev-parse --short HEAD')
tag = run_cmd_get_output('git describe --exact-match')
print('Git commit ID: ', path)
if len(tag):
print('Git tag: ', tag)
path = tag
return path
def setup(app):
rev = get_github_rev()
# links to files or folders on the GitHub
baseurl = 'https://github.com/espressif/esp-idf'
app.add_role('idf', autolink('{}/tree/{}/%s'.format(baseurl, rev)))
app.add_role('idf_file', autolink('{}/blob/{}/%s'.format(baseurl, rev)))
app.add_role('idf_raw', autolink('{}/raw/{}/%s'.format(baseurl, rev)))
app.add_role('component', autolink('{}/tree/{}/components/%s'.format(baseurl, rev)))
app.add_role('component_file', autolink('{}/blob/{}/components/%s'.format(baseurl, rev)))
app.add_role('component_raw', autolink('{}/raw/{}/components/%s'.format(baseurl, rev)))
app.add_role('example', autolink('{}/tree/{}/examples/%s'.format(baseurl, rev)))
app.add_role('example_file', autolink('{}/blob/{}/examples/%s'.format(baseurl, rev)))
app.add_role('example_raw', autolink('{}/raw/{}/examples/%s'.format(baseurl, rev)))
# link to the current documentation file in specific language version
app.add_role('link_to_translation', link_to_translation)
app.add_node(translation_link)
app.add_post_transform(TranslationLinkNodeTransform)
class translation_link(nodes.Element):
"""Node for "link_to_translation" role."""
# Linking to translation is done at the "writing" stage to avoid issues with the info being cached between builders
def link_to_translation(name, rawtext, text, lineno, inliner, options={}, content=[]):
node = translation_link()
node['expr'] = (rawtext, text, options)
return [node], []
class TranslationLinkNodeTransform(SphinxPostTransform):
# Transform needs to happen early to ensure the new reference node is also transformed
default_priority = 0
def run(self, **kwargs):
# Only output relative links if building HTML
for node in self.document.traverse(translation_link):
if 'html' in self.app.builder.name:
rawtext, text, options = node['expr']
(language, link_text) = text.split(':')
env = self.document.settings.env
docname = env.docname
doc_path = env.doc2path(docname, None, None)
return_path = '../' * doc_path.count('/') # path back to the root from 'docname'
# then take off 2 more paths for language/release/ and build the new URL
url = '{}.html'.format(os.path.join(return_path, '../..', language, env.config.release, docname))
node.replace_self(nodes.reference(rawtext, link_text, refuri=url, **options))
else:
node.replace_self([])
def autolink(pattern):
def role(name, rawtext, text, lineno, inliner, options={}, content=[]):
m = re.search('(.*)\s*<(.*)>', text) # noqa: W605 - regular expression
if m:
link_text = m.group(1)
link = m.group(2)
else:
link_text = text
link = text
url = pattern % (link,)
node = nodes.reference(rawtext, link_text, refuri=url, **options)
return [node], []
return role
def crosslink(pattern):
def role(name, rawtext, text, lineno, inliner, options={}, content=[]):
(language, link_text) = text.split(':')
docname = inliner.document.settings.env.docname
doc_path = inliner.document.settings.env.doc2path(docname, None, None)
return_path = '../' * doc_path.count('/')
url = pattern % (return_path, language, docname)
node = nodes.reference(rawtext, link_text, refuri=url, **options)
return [node], []
return role