76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
# -*- coding: utf-8; -*-
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################################################################################
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#
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# Rattail -- Retail Software Framework
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# Copyright © 2010-2018 Lance Edgar
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#
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# This file is part of Rattail.
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#
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# Rattail is free software: you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation, either version 3 of the License, or (at your option) any later
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# version.
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#
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# Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# Rattail. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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"""
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Misc. Utilities
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"""
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from __future__ import unicode_literals, absolute_import
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def is_win(c):
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"""
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Return True if remote SSH server is running Windows, False otherwise.
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The idea is based on echoing quoted text: \*NIX systems will echo quoted
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text only, while Windows echoes quotation marks as well.
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.. note::
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This function is derived from one copied from fabric v1.
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"""
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result = c.run('echo "Will you echo quotation marks"', warn=True)
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return '"' in result.stdout
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def _expand_path(c, path):
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"""
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Return a path expansion
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E.g. ~/some/path -> /home/myuser/some/path
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/user/\*/share -> /user/local/share
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More examples can be found here: http://linuxcommand.org/lc3_lts0080.php
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.. versionchanged:: 1.0
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Avoid breaking remote Windows commands which does not support expansion.
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.. note::
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This function is derived from one copied from fabric v1.
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"""
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return path if is_win(c) else '"$(echo %s)"' % path
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def exists(c, path, use_sudo=False):
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"""
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Return True if given path exists on the current remote host.
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If ``use_sudo`` is True, will use `sudo` instead of `run`.
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.. note::
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This function is derived from one copied from fabric v1.
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"""
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func = c.sudo if use_sudo else c.run
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cmd = 'stat %s' % _expand_path(c, path)
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return not func(cmd, warn=True).failed
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