0f073f7a09
Before, it was required to specify all the options when customizing a
rule. For instance, one could use `empty-lines: enable` or `empty-lines:
{max: 1, max-start: 2, max-end: 2}`, but not just `empty-lines: {max:
1}` (it would fail with *invalid config: missing option "max-start" for
rule "empty-lines"*).
This was a minor problem for users, but it prevented the addition of new
options to existing rules, see [1] for an example. If a new option was
added, updating yamllint for all users that customize the rule would
produce a crash (*invalid config: missing option ...*).
To avoid that, let's embed default values inside the rules themselves,
instead of keeping them in `conf/default.yaml`.
This refactor should not have any impact on existing projects. I've
manually checked that it did not change the output of tests, on
different projects:
- ansible/ansible: `test/runner/ansible-test sanity --python 3.7 --test yamllint`
- ansible/molecule: `yamllint -s test/ molecule/`
- Neo23x0/sigma: `make test-yaml`
- markstory/lint-review: `yamllint .`
[1]: https://github.com/adrienverge/yamllint/pull/151
94 lines
2.4 KiB
Python
94 lines
2.4 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2016 Adrien Vergé
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Use this rule to require or forbid the use of document start marker (``---``).
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.. rubric:: Options
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* Set ``present`` to ``true`` when the document start marker is required, or to
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``false`` when it is forbidden.
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.. rubric:: Examples
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#. With ``document-start: {present: true}``
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the following code snippet would **PASS**:
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::
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---
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this:
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is: [a, document]
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---
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- this
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- is: another one
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the following code snippet would **FAIL**:
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::
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this:
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is: [a, document]
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---
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- this
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- is: another one
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#. With ``document-start: {present: false}``
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the following code snippet would **PASS**:
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::
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this:
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is: [a, document]
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...
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the following code snippet would **FAIL**:
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::
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---
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this:
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is: [a, document]
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...
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"""
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import yaml
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from yamllint.linter import LintProblem
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ID = 'document-start'
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TYPE = 'token'
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CONF = {'present': bool}
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DEFAULT = {'present': True}
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def check(conf, token, prev, next, nextnext, context):
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if conf['present']:
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if (isinstance(prev, (yaml.StreamStartToken,
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yaml.DocumentEndToken,
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yaml.DirectiveToken)) and
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not isinstance(token, (yaml.DocumentStartToken,
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yaml.DirectiveToken,
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yaml.StreamEndToken))):
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yield LintProblem(token.start_mark.line + 1, 1,
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'missing document start "---"')
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else:
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if isinstance(token, yaml.DocumentStartToken):
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yield LintProblem(token.start_mark.line + 1,
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token.start_mark.column + 1,
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'found forbidden document start "---"')
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