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"""
Define text roles for GitHub.
* ghissue - Issue
* ghpull - Pull Request
* ghuser - User
Adapted from bitbucket example here:
https://bitbucket.org/birkenfeld/sphinx-contrib/src/tip/bitbucket/sphinxcontrib/bitbucket.py
Authors
-------
* Doug Hellmann
* Min RK
"""
#
# Original Copyright (c) 2010 Doug Hellmann. All rights reserved.
#
from docutils import nodes, utils
from docutils.parsers.rst.roles import set_classes
def make_link_node(rawtext, app, type, slug, options):
"""
Create a link to a github resource.
:param rawtext: Text being replaced with link node.
:param app: Sphinx application context
:param type: Link type (issues, changeset, etc.)
:param slug: ID of the thing to link to
:param options: Options dictionary passed to role func.
"""
try:
base = app.config.github_project_url
if not base:
raise AttributeError
if not base.endswith('/'):
base += '/'
except AttributeError as err:
raise ValueError(
f'github_project_url configuration value is not set '
f'({err})') from err
ref = base + type + '/' + slug + '/'
set_classes(options)
prefix = "#"
if type == 'pull':
prefix = "PR " + prefix
node = nodes.reference(rawtext, prefix + utils.unescape(slug), refuri=ref,
**options)
return node
def ghissue_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
"""
Link to a GitHub issue.
Returns 2 part tuple containing list of nodes to insert into the
document and a list of system messages. Both are allowed to be
empty.
:param name: The role name used in the document.
:param rawtext: The entire markup snippet, with role.
:param text: The text marked with the role.
:param lineno: The line number where rawtext appears in the input.
:param inliner: The inliner instance that called us.
:param options: Directive options for customization.
:param content: The directive content for customization.
"""
try:
issue_num = int(text)
if issue_num <= 0:
raise ValueError
except ValueError:
msg = inliner.reporter.error(
'GitHub issue number must be a number greater than or equal to 1; '
'"%s" is invalid.' % text, line=lineno)
prb = inliner.problematic(rawtext, rawtext, msg)
return [prb], [msg]
app = inliner.document.settings.env.app
if 'pull' in name.lower():
category = 'pull'
elif 'issue' in name.lower():
category = 'issues'
else:
msg = inliner.reporter.error(
'GitHub roles include "ghpull" and "ghissue", '
'"%s" is invalid.' % name, line=lineno)
prb = inliner.problematic(rawtext, rawtext, msg)
return [prb], [msg]
node = make_link_node(rawtext, app, category, str(issue_num), options)
return [node], []
def ghuser_role(name, rawtext, text, lineno, inliner, options={}, content=[]):
"""
Link to a GitHub user.
Returns 2 part tuple containing list of nodes to insert into the
document and a list of system messages. Both are allowed to be
empty.
:param name: The role name used in the document.
:param rawtext: The entire markup snippet, with role.
:param text: The text marked with the role.
:param lineno: The line number where rawtext appears in the input.
:param inliner: The inliner instance that called us.
:param options: Directive options for customization.
:param content: The directive content for customization.
"""
ref = 'https://www.github.com/' + text
node = nodes.reference(rawtext, text, refuri=ref, **options)
return [node], []
def ghcommit_role(
name, rawtext, text, lineno, inliner, options={}, content=[]):
"""
Link to a GitHub commit.
Returns 2 part tuple containing list of nodes to insert into the
document and a list of system messages. Both are allowed to be
empty.
:param name: The role name used in the document.
:param rawtext: The entire markup snippet, with role.
:param text: The text marked with the role.
:param lineno: The line number where rawtext appears in the input.
:param inliner: The inliner instance that called us.
:param options: Directive options for customization.
:param content: The directive content for customization.
"""
app = inliner.document.settings.env.app
try:
base = app.config.github_project_url
if not base:
raise AttributeError
if not base.endswith('/'):
base += '/'
except AttributeError as err:
raise ValueError(
f'github_project_url configuration value is not set '
f'({err})') from err
ref = base + text
node = nodes.reference(rawtext, text[:6], refuri=ref, **options)
return [node], []
def setup(app):
"""
Install the plugin.
:param app: Sphinx application context.
"""
app.add_role('ghissue', ghissue_role)
app.add_role('ghpull', ghissue_role)
app.add_role('ghuser', ghuser_role)
app.add_role('ghcommit', ghcommit_role)
app.add_config_value('github_project_url', None, 'env')
metadata = {'parallel_read_safe': True, 'parallel_write_safe': True}
return metadata