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https://github.com/thegeeklab/ansible-later.git
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99 lines
2.8 KiB
Python
99 lines
2.8 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 set a maximal number of allowed consecutive blank lines.
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.. rubric:: Options
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* ``max`` defines the maximal number of empty lines allowed in the document.
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* ``max-start`` defines the maximal number of empty lines allowed at the
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beginning of the file. This option takes precedence over ``max``.
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* ``max-end`` defines the maximal number of empty lines allowed at the end of
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the file. This option takes precedence over ``max``.
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.. rubric:: Examples
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#. With ``empty-lines: {max: 1}``
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the following code snippet would **PASS**:
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::
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- foo:
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- 1
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- 2
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- bar: [3, 4]
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the following code snippet would **FAIL**:
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::
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- foo:
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- 1
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- 2
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- bar: [3, 4]
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"""
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from yamllint.linter import LintProblem
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ID = 'empty-lines'
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TYPE = 'line'
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CONF = {'max': int,
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'max-start': int,
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'max-end': int}
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DEFAULT = {'max': 2,
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'max-start': 0,
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'max-end': 0}
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def check(conf, line):
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if line.start == line.end and line.end < len(line.buffer):
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# Only alert on the last blank line of a series
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if (line.end < len(line.buffer) - 1 and
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line.buffer[line.end + 1] == '\n'):
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return
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blank_lines = 0
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while (line.start > blank_lines and
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line.buffer[line.start - blank_lines - 1] == '\n'):
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blank_lines += 1
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max = conf['max']
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# Special case: start of document
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if line.start - blank_lines == 0:
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blank_lines += 1 # first line doesn't have a preceding \n
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max = conf['max-start']
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# Special case: end of document
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# NOTE: The last line of a file is always supposed to end with a new
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# line. See POSIX definition of a line at:
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if line.end == len(line.buffer) - 1 and line.buffer[line.end] == '\n':
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# Allow the exception of the one-byte file containing '\n'
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if line.end == 0:
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return
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max = conf['max-end']
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if blank_lines > max:
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yield LintProblem(line.line_no, 1, 'too many blank lines (%d > %d)'
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% (blank_lines, max))
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