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<!doctype html PUBLIC "-//W3C//DTD html 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>
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<title>Coverage for src/rockstor/storageadmin/views/share_helpers: 0%</title>
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<h1>Coverage for <b>src/rockstor/storageadmin/views/share_helpers</b> :
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</td>
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<p id='t1' class='pln'><span class='str'>"""</span><span class='strut'> </span></p>
<p id='t2' class='pln'><span class='str'>Copyright (c) 2012-2013 RockStor, Inc. <http://rockstor.com></span><span class='strut'> </span></p>
<p id='t3' class='pln'><span class='str'>This file is part of RockStor.</span><span class='strut'> </span></p>
<p id='t4' class='pln'><span class='strut'> </span></p>
<p id='t5' class='pln'><span class='str'>RockStor is free software; you can redistribute it and/or modify</span><span class='strut'> </span></p>
<p id='t6' class='pln'><span class='str'>it under the terms of the GNU General Public License as published</span><span class='strut'> </span></p>
<p id='t7' class='pln'><span class='str'>by the Free Software Foundation; either version 2 of the License,</span><span class='strut'> </span></p>
<p id='t8' class='pln'><span class='str'>or (at your option) any later version.</span><span class='strut'> </span></p>
<p id='t9' class='pln'><span class='strut'> </span></p>
<p id='t10' class='pln'><span class='str'>RockStor is distributed in the hope that it will be useful, but</span><span class='strut'> </span></p>
<p id='t11' class='pln'><span class='str'>WITHOUT ANY WARRANTY; without even the implied warranty of</span><span class='strut'> </span></p>
<p id='t12' class='pln'><span class='str'>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span><span class='strut'> </span></p>
<p id='t13' class='pln'><span class='str'>General Public License for more details.</span><span class='strut'> </span></p>
<p id='t14' class='pln'><span class='strut'> </span></p>
<p id='t15' class='pln'><span class='str'>You should have received a copy of the GNU General Public License</span><span class='strut'> </span></p>
<p id='t16' class='pln'><span class='str'>along with this program. If not, see <http://www.gnu.org/licenses/>.</span><span class='strut'> </span></p>
<p id='t17' class='pln'><span class='str'>"""</span><span class='strut'> </span></p>
<p id='t18' class='stm mis'><span class='key'>import</span> <span class='nam'>re</span><span class='strut'> </span></p>
<p id='t19' class='stm mis'><span class='key'>from</span> <span class='nam'>datetime</span> <span class='key'>import</span> <span class='nam'>datetime</span><span class='strut'> </span></p>
<p id='t20' class='stm mis'><span class='key'>from</span> <span class='nam'>django</span><span class='op'>.</span><span class='nam'>utils</span><span class='op'>.</span><span class='nam'>timezone</span> <span class='key'>import</span> <span class='nam'>utc</span><span class='strut'> </span></p>
<p id='t21' class='stm mis'><span class='key'>from</span> <span class='nam'>django</span><span class='op'>.</span><span class='nam'>conf</span> <span class='key'>import</span> <span class='nam'>settings</span><span class='strut'> </span></p>
<p id='t22' class='stm mis'><span class='key'>from</span> <span class='nam'>storageadmin</span><span class='op'>.</span><span class='nam'>models</span> <span class='key'>import</span> <span class='op'>(</span><span class='nam'>Share</span><span class='op'>,</span> <span class='nam'>Snapshot</span><span class='op'>,</span> <span class='nam'>SFTP</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t23' class='stm mis'><span class='key'>from</span> <span class='nam'>smart_manager</span><span class='op'>.</span><span class='nam'>models</span> <span class='key'>import</span> <span class='nam'>ShareUsage</span><span class='strut'> </span></p>
<p id='t24' class='stm mis'><span class='key'>from</span> <span class='nam'>fs</span><span class='op'>.</span><span class='nam'>btrfs</span> <span class='key'>import</span> <span class='op'>(</span><span class='nam'>mount_share</span><span class='op'>,</span> <span class='nam'>mount_snap</span><span class='op'>,</span> <span class='nam'>is_mounted</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t25' class='pln'> <span class='nam'>umount_root</span><span class='op'>,</span> <span class='nam'>shares_info</span><span class='op'>,</span> <span class='nam'>volume_usage</span><span class='op'>,</span> <span class='nam'>snaps_info</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t26' class='pln'> <span class='nam'>qgroup_create</span><span class='op'>,</span> <span class='nam'>update_quota</span><span class='op'>,</span> <span class='nam'>share_pqgroup_assign</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t27' class='pln'> <span class='nam'>qgroup_assign</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t28' class='stm mis'><span class='key'>from</span> <span class='nam'>storageadmin</span><span class='op'>.</span><span class='nam'>util</span> <span class='key'>import</span> <span class='nam'>handle_exception</span><span class='strut'> </span></p>
<p id='t29' class='stm mis'><span class='key'>from</span> <span class='nam'>copy</span> <span class='key'>import</span> <span class='nam'>deepcopy</span><span class='strut'> </span></p>
<p id='t30' class='pln'><span class='strut'> </span></p>
<p id='t31' class='stm mis'><span class='key'>import</span> <span class='nam'>logging</span><span class='strut'> </span></p>
<p id='t32' class='pln'><span class='strut'> </span></p>
<p id='t33' class='stm mis'><span class='nam'>logger</span> <span class='op'>=</span> <span class='nam'>logging</span><span class='op'>.</span><span class='nam'>getLogger</span><span class='op'>(</span><span class='nam'>__name__</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t34' class='pln'><span class='strut'> </span></p>
<p id='t35' class='stm mis'><span class='nam'>NEW_ENTRY</span> <span class='op'>=</span> <span class='nam'>True</span><span class='strut'> </span></p>
<p id='t36' class='stm mis'><span class='nam'>UPDATE_TS</span> <span class='op'>=</span> <span class='nam'>False</span><span class='strut'> </span></p>
<p id='t37' class='pln'><span class='com'># The following model/db default setting is also used when quotas are disabled</span><span class='strut'> </span></p>
<p id='t38' class='pln'><span class='com'># or when a Read-only state prevents creation of a new pqgroup.</span><span class='strut'> </span></p>
<p id='t39' class='stm mis'><span class='nam'>PQGROUP_DEFAULT</span> <span class='op'>=</span> <span class='nam'>settings</span><span class='op'>.</span><span class='nam'>MODEL_DEFS</span><span class='op'>[</span><span class='str'>'pqgroup'</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t40' class='pln'><span class='strut'> </span></p>
<p id='t41' class='pln'><span class='strut'> </span></p>
<p id='t42' class='stm mis'><span class='key'>def</span> <span class='nam'>helper_mount_share</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>mnt_pt</span><span class='op'>=</span><span class='nam'>None</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t43' class='stm mis'> <span class='key'>if</span> <span class='key'>not</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>is_mounted</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t44' class='stm mis'> <span class='key'>if</span> <span class='nam'>mnt_pt</span> <span class='key'>is</span> <span class='nam'>None</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t45' class='stm mis'> <span class='nam'>mnt_pt</span> <span class='op'>=</span> <span class='op'>(</span><span class='str'>'%s%s'</span> <span class='op'>%</span> <span class='op'>(</span><span class='nam'>settings</span><span class='op'>.</span><span class='nam'>MNT_PT</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t46' class='stm mis'> <span class='nam'>mount_share</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>mnt_pt</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t47' class='pln'><span class='strut'> </span></p>
<p id='t48' class='pln'><span class='strut'> </span></p>
<p id='t49' class='stm mis'><span class='key'>def</span> <span class='nam'>validate_share</span><span class='op'>(</span><span class='nam'>sname</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t50' class='stm mis'> <span class='key'>try</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t51' class='stm mis'> <span class='key'>return</span> <span class='nam'>Share</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='nam'>name</span><span class='op'>=</span><span class='nam'>sname</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t52' class='stm mis'> <span class='key'>except</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t53' class='stm mis'> <span class='nam'>e_msg</span> <span class='op'>=</span> <span class='op'>(</span><span class='str'>'Share with name: %s does not exist'</span> <span class='op'>%</span> <span class='nam'>sname</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t54' class='stm mis'> <span class='nam'>handle_exception</span><span class='op'>(</span><span class='nam'>Exception</span><span class='op'>(</span><span class='nam'>e_msg</span><span class='op'>)</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t55' class='pln'><span class='strut'> </span></p>
<p id='t56' class='pln'><span class='strut'> </span></p>
<p id='t57' class='stm mis'><span class='key'>def</span> <span class='nam'>sftp_snap_toggle</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>mount</span><span class='op'>=</span><span class='nam'>True</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t58' class='stm mis'> <span class='key'>for</span> <span class='nam'>snap</span> <span class='key'>in</span> <span class='nam'>Snapshot</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>=</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>uvisible</span><span class='op'>=</span><span class='nam'>True</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t59' class='stm mis'> <span class='nam'>mnt_pt</span> <span class='op'>=</span> <span class='op'>(</span><span class='str'>'%s/%s/%s/.%s'</span> <span class='op'>%</span> <span class='op'>(</span><span class='nam'>settings</span><span class='op'>.</span><span class='nam'>SFTP_MNT_ROOT</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t60' class='pln'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>owner</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t61' class='pln'> <span class='nam'>snap</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t62' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>mount</span> <span class='key'>and</span> <span class='key'>not</span> <span class='nam'>is_mounted</span><span class='op'>(</span><span class='nam'>mnt_pt</span><span class='op'>)</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t63' class='stm mis'> <span class='nam'>mount_snap</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>snap</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>,</span> <span class='nam'>mnt_pt</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t64' class='stm mis'> <span class='key'>elif</span> <span class='op'>(</span><span class='nam'>is_mounted</span><span class='op'>(</span><span class='nam'>mnt_pt</span><span class='op'>)</span> <span class='key'>and</span> <span class='key'>not</span> <span class='nam'>mount</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t65' class='stm mis'> <span class='nam'>umount_root</span><span class='op'>(</span><span class='nam'>mnt_pt</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t66' class='pln'><span class='strut'> </span></p>
<p id='t67' class='pln'><span class='strut'> </span></p>
<p id='t68' class='stm mis'><span class='key'>def</span> <span class='nam'>toggle_sftp_visibility</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>snap_name</span><span class='op'>,</span> <span class='nam'>on</span><span class='op'>=</span><span class='nam'>True</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t69' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='key'>not</span> <span class='nam'>SFTP</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>=</span><span class='nam'>share</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>exists</span><span class='op'>(</span><span class='op'>)</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t70' class='stm mis'> <span class='key'>return</span><span class='strut'> </span></p>
<p id='t71' class='pln'><span class='strut'> </span></p>
<p id='t72' class='stm mis'> <span class='nam'>mnt_pt</span> <span class='op'>=</span> <span class='op'>(</span><span class='str'>'%s/%s/%s/.%s'</span> <span class='op'>%</span> <span class='op'>(</span><span class='nam'>settings</span><span class='op'>.</span><span class='nam'>SFTP_MNT_ROOT</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>owner</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t73' class='pln'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>,</span> <span class='nam'>snap_name</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t74' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>on</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t75' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='key'>not</span> <span class='nam'>is_mounted</span><span class='op'>(</span><span class='nam'>mnt_pt</span><span class='op'>)</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t76' class='stm mis'> <span class='nam'>mount_snap</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>snap_name</span><span class='op'>,</span> <span class='nam'>mnt_pt</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t77' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t78' class='stm mis'> <span class='nam'>umount_root</span><span class='op'>(</span><span class='nam'>mnt_pt</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t79' class='pln'><span class='strut'> </span></p>
<p id='t80' class='pln'><span class='strut'> </span></p>
<p id='t81' class='stm mis'><span class='key'>def</span> <span class='nam'>import_shares</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t82' class='pln'> <span class='com'># Establish known shares/subvols within our db for the given pool:</span><span class='strut'> </span></p>
<p id='t83' class='stm mis'> <span class='nam'>shares_in_pool_db</span> <span class='op'>=</span> <span class='op'>[</span><span class='nam'>s</span><span class='op'>.</span><span class='nam'>name</span> <span class='key'>for</span> <span class='nam'>s</span> <span class='key'>in</span> <span class='nam'>Share</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>)</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t84' class='pln'> <span class='com'># Find the actual/current shares/subvols within the given pool:</span><span class='strut'> </span></p>
<p id='t85' class='pln'> <span class='com'># Limited to Rockstor relevant subvols ie shares and clones.</span><span class='strut'> </span></p>
<p id='t86' class='stm mis'> <span class='nam'>shares_in_pool</span> <span class='op'>=</span> <span class='nam'>shares_info</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t87' class='pln'> <span class='com'># List of pool's share.pqgroups so we can remove inadvertent duplication.</span><span class='strut'> </span></p>
<p id='t88' class='pln'> <span class='com'># All pqgroups are removed when quotas are disabled, combined with a part</span><span class='strut'> </span></p>
<p id='t89' class='pln'> <span class='com'># refresh we could have duplicates within the db.</span><span class='strut'> </span></p>
<p id='t90' class='stm mis'> <span class='nam'>share_pqgroups_used</span> <span class='op'>=</span> <span class='op'>[</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t91' class='pln'> <span class='com'># Delete db Share object if it is no longer found on disk.</span><span class='strut'> </span></p>
<p id='t92' class='stm mis'> <span class='key'>for</span> <span class='nam'>s_in_pool_db</span> <span class='key'>in</span> <span class='nam'>shares_in_pool_db</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t93' class='stm mis'> <span class='key'>if</span> <span class='nam'>s_in_pool_db</span> <span class='key'>not</span> <span class='key'>in</span> <span class='nam'>shares_in_pool</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t94' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'Removing, missing on disk, share db entry ({}) from '</span><span class='strut'> </span></p>
<p id='t95' class='pln'> <span class='str'>'pool ({}).'</span><span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>s_in_pool_db</span><span class='op'>,</span> <span class='nam'>pool</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t96' class='stm mis'> <span class='nam'>Share</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>name</span><span class='op'>=</span><span class='nam'>s_in_pool_db</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>delete</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t97' class='pln'> <span class='com'># Check if each share in pool also has a db counterpart.</span><span class='strut'> </span></p>
<p id='t98' class='stm mis'> <span class='key'>for</span> <span class='nam'>s_in_pool</span> <span class='key'>in</span> <span class='nam'>shares_in_pool</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t99' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'---- Share name = {}.'</span><span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>s_in_pool</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t100' class='stm mis'> <span class='key'>if</span> <span class='nam'>s_in_pool</span> <span class='key'>in</span> <span class='nam'>shares_in_pool_db</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t101' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'Updating pre-existing same pool db share entry.'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t102' class='pln'> <span class='com'># We have a pool db share counterpart so retrieve and update it.</span><span class='strut'> </span></p>
<p id='t103' class='stm mis'> <span class='nam'>share</span> <span class='op'>=</span> <span class='nam'>Share</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='nam'>name</span><span class='op'>=</span><span class='nam'>s_in_pool</span><span class='op'>,</span> <span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t104' class='pln'> <span class='com'># Initially default our pqgroup value to db default of '-1/-1'</span><span class='strut'> </span></p>
<p id='t105' class='pln'> <span class='com'># This way, unless quotas are enabled, all pqgroups will be</span><span class='strut'> </span></p>
<p id='t106' class='pln'> <span class='com'># returned to db default.</span><span class='strut'> </span></p>
<p id='t107' class='stm mis'> <span class='nam'>pqgroup</span> <span class='op'>=</span> <span class='nam'>PQGROUP_DEFAULT</span><span class='strut'> </span></p>
<p id='t108' class='stm mis'> <span class='key'>if</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pool</span><span class='op'>.</span><span class='nam'>quotas_enabled</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t109' class='pln'> <span class='com'># Quotas are enabled on our pool so we can validate pqgroup.</span><span class='strut'> </span></p>
<p id='t110' class='stm mis'> <span class='key'>if</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup</span> <span class='op'>==</span> <span class='nam'>pqgroup</span> <span class='key'>or</span> <span class='key'>not</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup_exist</span> <span class='xx'>\</span><span class='strut'> </span></p>
<p id='t111' class='pln'> <span class='key'>or</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup</span> <span class='key'>in</span> <span class='nam'>share_pqgroups_used</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t112' class='pln'> <span class='com'># we have a void '-1/-1' or non existent pqgroup or</span><span class='strut'> </span></p>
<p id='t113' class='pln'> <span class='com'># this pqgroup has already been seen / used in this pool.</span><span class='strut'> </span></p>
<p id='t114' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'#### replacing void, non-existent, or '</span><span class='strut'> </span></p>
<p id='t115' class='pln'> <span class='str'>'duplicate pqgroup'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t116' class='stm mis'> <span class='nam'>pqgroup</span> <span class='op'>=</span> <span class='nam'>qgroup_create</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t117' class='stm mis'> <span class='key'>if</span> <span class='nam'>pqgroup</span> <span class='key'>is</span> <span class='key'>not</span> <span class='nam'>PQGROUP_DEFAULT</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t118' class='stm mis'> <span class='nam'>update_quota</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>pqgroup</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>size</span> <span class='op'>*</span> <span class='num'>1024</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t119' class='stm mis'> <span class='nam'>share_pqgroup_assign</span><span class='op'>(</span><span class='nam'>pqgroup</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t120' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t121' class='pln'> <span class='com'># Our share's pqgroup looks OK so use it.</span><span class='strut'> </span></p>
<p id='t122' class='stm mis'> <span class='nam'>pqgroup</span> <span class='op'>=</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup</span><span class='strut'> </span></p>
<p id='t123' class='pln'> <span class='com'># Record our use of this pqgroup to spot duplicates later.</span><span class='strut'> </span></p>
<p id='t124' class='stm mis'> <span class='nam'>share_pqgroups_used</span><span class='op'>.</span><span class='nam'>append</span><span class='op'>(</span><span class='nam'>deepcopy</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t125' class='stm mis'> <span class='key'>if</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup</span> <span class='op'>!=</span> <span class='nam'>pqgroup</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t126' class='pln'> <span class='com'># we need to update our share.pqgroup</span><span class='strut'> </span></p>
<p id='t127' class='stm mis'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup</span> <span class='op'>=</span> <span class='nam'>pqgroup</span><span class='strut'> </span></p>
<p id='t128' class='stm mis'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t129' class='stm mis'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>qgroup</span> <span class='op'>=</span> <span class='nam'>shares_in_pool</span><span class='op'>[</span><span class='nam'>s_in_pool</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t130' class='stm mis'> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span><span class='op'>,</span> <span class='nam'>pqgroup_rusage</span><span class='op'>,</span> <span class='nam'>pqgroup_eusage</span> <span class='op'>=</span> <span class='xx'>\</span><span class='strut'> </span></p>
<p id='t131' class='pln'> <span class='nam'>volume_usage</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>qgroup</span><span class='op'>,</span> <span class='nam'>pqgroup</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t132' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>rusage</span> <span class='op'>!=</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>rusage</span> <span class='key'>or</span> <span class='nam'>eusage</span> <span class='op'>!=</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>eusage</span> <span class='key'>or</span><span class='strut'> </span></p>
<p id='t133' class='pln'> <span class='nam'>pqgroup_rusage</span> <span class='op'>!=</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup_rusage</span> <span class='key'>or</span><span class='strut'> </span></p>
<p id='t134' class='pln'> <span class='nam'>pqgroup_eusage</span> <span class='op'>!=</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup_eusage</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t135' class='stm mis'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>rusage</span> <span class='op'>=</span> <span class='nam'>rusage</span><span class='strut'> </span></p>
<p id='t136' class='stm mis'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>eusage</span> <span class='op'>=</span> <span class='nam'>eusage</span><span class='strut'> </span></p>
<p id='t137' class='stm mis'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup_rusage</span> <span class='op'>=</span> <span class='nam'>pqgroup_rusage</span><span class='strut'> </span></p>
<p id='t138' class='stm mis'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pqgroup_eusage</span> <span class='op'>=</span> <span class='nam'>pqgroup_eusage</span><span class='strut'> </span></p>
<p id='t139' class='stm mis'> <span class='nam'>update_shareusage_db</span><span class='op'>(</span><span class='nam'>s_in_pool</span><span class='op'>,</span> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t140' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t141' class='stm mis'> <span class='nam'>update_shareusage_db</span><span class='op'>(</span><span class='nam'>s_in_pool</span><span class='op'>,</span> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span><span class='op'>,</span> <span class='nam'>UPDATE_TS</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t142' class='stm mis'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t143' class='stm mis'> <span class='key'>continue</span><span class='strut'> </span></p>
<p id='t144' class='stm mis'> <span class='key'>try</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t145' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'No prior entries in scanned pool trying all pools.'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t146' class='pln'> <span class='com'># Test (Try) for an existing system wide Share db entry.</span><span class='strut'> </span></p>
<p id='t147' class='stm mis'> <span class='nam'>cshare</span> <span class='op'>=</span> <span class='nam'>Share</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='nam'>name</span><span class='op'>=</span><span class='nam'>s_in_pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t148' class='pln'> <span class='com'># Get a list of Rockstor relevant subvols (ie shares and clones)</span><span class='strut'> </span></p>
<p id='t149' class='pln'> <span class='com'># for the prior existing db share entry's pool.</span><span class='strut'> </span></p>
<p id='t150' class='stm mis'> <span class='nam'>cshares_d</span> <span class='op'>=</span> <span class='nam'>shares_info</span><span class='op'>(</span><span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t151' class='stm mis'> <span class='key'>if</span> <span class='nam'>s_in_pool</span> <span class='key'>in</span> <span class='nam'>cshares_d</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t152' class='stm mis'> <span class='nam'>e_msg</span> <span class='op'>=</span> <span class='op'>(</span><span class='str'>'Another pool ({}) has a Share with this same '</span><span class='strut'> </span></p>
<p id='t153' class='pln'> <span class='str'>'name ({}) as this pool ({}). This configuration '</span><span class='strut'> </span></p>
<p id='t154' class='pln'> <span class='str'>'is not supported. You can delete one of them '</span><span class='strut'> </span></p>
<p id='t155' class='pln'> <span class='str'>'manually with the following command: '</span><span class='strut'> </span></p>
<p id='t156' class='pln'> <span class='str'>'"btrfs subvol delete {}[pool name]/{}" WARNING this '</span><span class='strut'> </span></p>
<p id='t157' class='pln'> <span class='str'>'will remove the entire contents of that subvolume.'</span><span class='strut'> </span></p>
<p id='t158' class='pln'> <span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>pool</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>,</span> <span class='nam'>s_in_pool</span><span class='op'>,</span> <span class='nam'>pool</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t159' class='pln'> <span class='nam'>settings</span><span class='op'>.</span><span class='nam'>MNT_PT</span><span class='op'>,</span> <span class='nam'>s_in_pool</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t160' class='stm mis'> <span class='nam'>handle_exception</span><span class='op'>(</span><span class='nam'>Exception</span><span class='op'>(</span><span class='nam'>e_msg</span><span class='op'>)</span><span class='op'>,</span> <span class='nam'>request</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t161' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t162' class='pln'> <span class='com'># Update the prior existing db share entry previously</span><span class='strut'> </span></p>
<p id='t163' class='pln'> <span class='com'># associated with another pool.</span><span class='strut'> </span></p>
<p id='t164' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'Updating prior db entry from another pool.'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t165' class='stm mis'> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>pool</span> <span class='op'>=</span> <span class='nam'>pool</span><span class='strut'> </span></p>
<p id='t166' class='stm mis'> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>qgroup</span> <span class='op'>=</span> <span class='nam'>shares_in_pool</span><span class='op'>[</span><span class='nam'>s_in_pool</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t167' class='stm mis'> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>size</span> <span class='op'>=</span> <span class='nam'>pool</span><span class='op'>.</span><span class='nam'>size</span><span class='strut'> </span></p>
<p id='t168' class='stm mis'> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>subvol_name</span> <span class='op'>=</span> <span class='nam'>s_in_pool</span><span class='strut'> </span></p>
<p id='t169' class='stm mis'> <span class='op'>(</span><span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>eusage</span><span class='op'>,</span> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>pqgroup_rusage</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t170' class='pln'> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>pqgroup_eusage</span><span class='op'>)</span> <span class='op'>=</span> <span class='nam'>volume_usage</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>qgroup</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t171' class='pln'> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>pqgroup</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t172' class='stm mis'> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t173' class='stm mis'> <span class='nam'>update_shareusage_db</span><span class='op'>(</span><span class='nam'>s_in_pool</span><span class='op'>,</span> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>cshare</span><span class='op'>.</span><span class='nam'>eusage</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t174' class='stm mis'> <span class='key'>except</span> <span class='nam'>Share</span><span class='op'>.</span><span class='nam'>DoesNotExist</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t175' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'Db share entry does not exist - creating.'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t176' class='pln'> <span class='com'># We have a share on disk that has no db counterpart so create one.</span><span class='strut'> </span></p>
<p id='t177' class='pln'> <span class='com'># Retrieve new pool quota id for use in db Share object creation.</span><span class='strut'> </span></p>
<p id='t178' class='pln'> <span class='com'># As the replication receive share is 'special' we tag it as such.</span><span class='strut'> </span></p>
<p id='t179' class='stm mis'> <span class='nam'>replica</span> <span class='op'>=</span> <span class='nam'>False</span><span class='strut'> </span></p>
<p id='t180' class='stm mis'> <span class='nam'>share_name</span> <span class='op'>=</span> <span class='nam'>s_in_pool</span><span class='strut'> </span></p>
<p id='t181' class='stm mis'> <span class='key'>if</span> <span class='nam'>re</span><span class='op'>.</span><span class='nam'>match</span><span class='op'>(</span><span class='str'>'.snapshot'</span><span class='op'>,</span> <span class='nam'>s_in_pool</span><span class='op'>)</span> <span class='key'>is</span> <span class='key'>not</span> <span class='nam'>None</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t182' class='pln'> <span class='com'># We have an initial replication share, non snap in .snapshots.</span><span class='strut'> </span></p>
<p id='t183' class='pln'> <span class='com'># We could change it's name here but still a little mixing</span><span class='strut'> </span></p>
<p id='t184' class='pln'> <span class='com'># of name and subvol throughout project.</span><span class='strut'> </span></p>
<p id='t185' class='stm mis'> <span class='nam'>replica</span> <span class='op'>=</span> <span class='nam'>True</span><span class='strut'> </span></p>
<p id='t186' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'Initial receive quirk-subvol found: Importing '</span><span class='strut'> </span></p>
<p id='t187' class='pln'> <span class='str'>'as share and setting replica flag.'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t188' class='stm mis'> <span class='nam'>qid</span> <span class='op'>=</span> <span class='nam'>shares_in_pool</span><span class='op'>[</span><span class='nam'>s_in_pool</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t189' class='stm mis'> <span class='nam'>pqid</span> <span class='op'>=</span> <span class='nam'>qgroup_create</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t190' class='stm mis'> <span class='key'>if</span> <span class='nam'>pqid</span> <span class='key'>is</span> <span class='key'>not</span> <span class='nam'>PQGROUP_DEFAULT</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t191' class='stm mis'> <span class='nam'>update_quota</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>pqid</span><span class='op'>,</span> <span class='nam'>pool</span><span class='op'>.</span><span class='nam'>size</span> <span class='op'>*</span> <span class='num'>1024</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t192' class='stm mis'> <span class='nam'>pool_mnt_pt</span> <span class='op'>=</span> <span class='str'>'{}{}'</span><span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>settings</span><span class='op'>.</span><span class='nam'>MNT_PT</span><span class='op'>,</span> <span class='nam'>pool</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t193' class='stm mis'> <span class='nam'>qgroup_assign</span><span class='op'>(</span><span class='nam'>qid</span><span class='op'>,</span> <span class='nam'>pqid</span><span class='op'>,</span> <span class='nam'>pool_mnt_pt</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t194' class='stm mis'> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span><span class='op'>,</span> <span class='nam'>pqgroup_rusage</span><span class='op'>,</span> <span class='nam'>pqgroup_eusage</span> <span class='op'>=</span> <span class='xx'>\</span><span class='strut'> </span></p>
<p id='t195' class='pln'> <span class='nam'>volume_usage</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>qid</span><span class='op'>,</span> <span class='nam'>pqid</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t196' class='stm mis'> <span class='nam'>nso</span> <span class='op'>=</span> <span class='nam'>Share</span><span class='op'>(</span><span class='nam'>pool</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>qgroup</span><span class='op'>=</span><span class='nam'>qid</span><span class='op'>,</span> <span class='nam'>pqgroup</span><span class='op'>=</span><span class='nam'>pqid</span><span class='op'>,</span> <span class='nam'>name</span><span class='op'>=</span><span class='nam'>share_name</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t197' class='pln'> <span class='nam'>size</span><span class='op'>=</span><span class='nam'>pool</span><span class='op'>.</span><span class='nam'>size</span><span class='op'>,</span> <span class='nam'>subvol_name</span><span class='op'>=</span><span class='nam'>s_in_pool</span><span class='op'>,</span> <span class='nam'>rusage</span><span class='op'>=</span><span class='nam'>rusage</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t198' class='pln'> <span class='nam'>eusage</span><span class='op'>=</span><span class='nam'>eusage</span><span class='op'>,</span> <span class='nam'>pqgroup_rusage</span><span class='op'>=</span><span class='nam'>pqgroup_rusage</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t199' class='pln'> <span class='nam'>pqgroup_eusage</span><span class='op'>=</span><span class='nam'>pqgroup_eusage</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t200' class='pln'> <span class='nam'>replica</span><span class='op'>=</span><span class='nam'>replica</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t201' class='stm mis'> <span class='nam'>nso</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t202' class='stm mis'> <span class='nam'>update_shareusage_db</span><span class='op'>(</span><span class='nam'>s_in_pool</span><span class='op'>,</span> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t203' class='stm mis'> <span class='nam'>mount_share</span><span class='op'>(</span><span class='nam'>nso</span><span class='op'>,</span> <span class='str'>'%s%s'</span> <span class='op'>%</span> <span class='op'>(</span><span class='nam'>settings</span><span class='op'>.</span><span class='nam'>MNT_PT</span><span class='op'>,</span> <span class='nam'>s_in_pool</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t204' class='pln'><span class='strut'> </span></p>
<p id='t205' class='pln'><span class='strut'> </span></p>
<p id='t206' class='stm mis'><span class='key'>def</span> <span class='nam'>import_snapshots</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t207' class='stm mis'> <span class='nam'>snaps_d</span> <span class='op'>=</span> <span class='nam'>snaps_info</span><span class='op'>(</span><span class='str'>'%s%s'</span> <span class='op'>%</span> <span class='op'>(</span><span class='nam'>settings</span><span class='op'>.</span><span class='nam'>MNT_PT</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>pool</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t208' class='pln'> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t209' class='stm mis'> <span class='nam'>snaps</span> <span class='op'>=</span> <span class='op'>[</span><span class='nam'>s</span><span class='op'>.</span><span class='nam'>name</span> <span class='key'>for</span> <span class='nam'>s</span> <span class='key'>in</span> <span class='nam'>Snapshot</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>=</span><span class='nam'>share</span><span class='op'>)</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t210' class='stm mis'> <span class='key'>for</span> <span class='nam'>s</span> <span class='key'>in</span> <span class='nam'>snaps</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t211' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>s</span> <span class='key'>not</span> <span class='key'>in</span> <span class='nam'>snaps_d</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t212' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'Removing, missing on disk, snapshot db entry ({}) '</span><span class='strut'> </span></p>
<p id='t213' class='pln'> <span class='str'>'from share ({}).'</span><span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>s</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t214' class='stm mis'> <span class='nam'>Snapshot</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>=</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>name</span><span class='op'>=</span><span class='nam'>s</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>delete</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t215' class='stm mis'> <span class='key'>for</span> <span class='nam'>s</span> <span class='key'>in</span> <span class='nam'>snaps_d</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t216' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>s</span> <span class='key'>in</span> <span class='nam'>snaps</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t217' class='stm mis'> <span class='nam'>so</span> <span class='op'>=</span> <span class='nam'>Snapshot</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>get</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>=</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>name</span><span class='op'>=</span><span class='nam'>s</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t218' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t219' class='stm mis'> <span class='nam'>logger</span><span class='op'>.</span><span class='nam'>debug</span><span class='op'>(</span><span class='str'>'Adding, missing in db, on disk snapshot ({}) '</span><span class='strut'> </span></p>
<p id='t220' class='pln'> <span class='str'>'against share ({}).'</span><span class='op'>.</span><span class='nam'>format</span><span class='op'>(</span><span class='nam'>s</span><span class='op'>,</span> <span class='nam'>share</span><span class='op'>.</span><span class='nam'>name</span><span class='op'>)</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t221' class='stm mis'> <span class='nam'>so</span> <span class='op'>=</span> <span class='nam'>Snapshot</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>=</span><span class='nam'>share</span><span class='op'>,</span> <span class='nam'>name</span><span class='op'>=</span><span class='nam'>s</span><span class='op'>,</span> <span class='nam'>real_name</span><span class='op'>=</span><span class='nam'>s</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t222' class='pln'> <span class='nam'>writable</span><span class='op'>=</span><span class='nam'>snaps_d</span><span class='op'>[</span><span class='nam'>s</span><span class='op'>]</span><span class='op'>[</span><span class='num'>1</span><span class='op'>]</span><span class='op'>,</span> <span class='nam'>qgroup</span><span class='op'>=</span><span class='nam'>snaps_d</span><span class='op'>[</span><span class='nam'>s</span><span class='op'>]</span><span class='op'>[</span><span class='num'>0</span><span class='op'>]</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t223' class='stm mis'> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span> <span class='op'>=</span> <span class='nam'>volume_usage</span><span class='op'>(</span><span class='nam'>share</span><span class='op'>.</span><span class='nam'>pool</span><span class='op'>,</span> <span class='nam'>snaps_d</span><span class='op'>[</span><span class='nam'>s</span><span class='op'>]</span><span class='op'>[</span><span class='num'>0</span><span class='op'>]</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t224' class='stm mis'> <span class='key'>if</span> <span class='op'>(</span><span class='nam'>rusage</span> <span class='op'>!=</span> <span class='nam'>so</span><span class='op'>.</span><span class='nam'>rusage</span> <span class='key'>or</span> <span class='nam'>eusage</span> <span class='op'>!=</span> <span class='nam'>so</span><span class='op'>.</span><span class='nam'>eusage</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t225' class='stm mis'> <span class='nam'>so</span><span class='op'>.</span><span class='nam'>rusage</span> <span class='op'>=</span> <span class='nam'>rusage</span><span class='strut'> </span></p>
<p id='t226' class='stm mis'> <span class='nam'>so</span><span class='op'>.</span><span class='nam'>eusage</span> <span class='op'>=</span> <span class='nam'>eusage</span><span class='strut'> </span></p>
<p id='t227' class='stm mis'> <span class='nam'>update_shareusage_db</span><span class='op'>(</span><span class='nam'>s</span><span class='op'>,</span> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t228' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t229' class='stm mis'> <span class='nam'>update_shareusage_db</span><span class='op'>(</span><span class='nam'>s</span><span class='op'>,</span> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span><span class='op'>,</span> <span class='nam'>UPDATE_TS</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t230' class='stm mis'> <span class='nam'>so</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t231' class='pln'><span class='strut'> </span></p>
<p id='t232' class='pln'><span class='strut'> </span></p>
<p id='t233' class='stm mis'><span class='key'>def</span> <span class='nam'>update_shareusage_db</span><span class='op'>(</span><span class='nam'>subvol_name</span><span class='op'>,</span> <span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>eusage</span><span class='op'>,</span> <span class='nam'>new_entry</span><span class='op'>=</span><span class='nam'>True</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t234' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t235' class='pln'><span class='str'> Creates a new share/subvol db usage entry, or updates an existing one with</span><span class='strut'> </span></p>
<p id='t236' class='pln'><span class='str'> a new time stamp and count increment.</span><span class='strut'> </span></p>
<p id='t237' class='pln'><span class='str'> The 'create new entry' mode is expected to be faster.</span><span class='strut'> </span></p>
<p id='t238' class='pln'><span class='str'> :param subvol_name: share/subvol name</span><span class='strut'> </span></p>
<p id='t239' class='pln'><span class='str'> :param rusage: Referenced/shared usage</span><span class='strut'> </span></p>
<p id='t240' class='pln'><span class='str'> :param eusage: Exclusive usage</span><span class='strut'> </span></p>
<p id='t241' class='pln'><span class='str'> :param new_entry: If True create a new entry with the passed params,</span><span class='strut'> </span></p>
<p id='t242' class='pln'><span class='str'> otherwise attempt to update the latest (by id) entry with time and count.</span><span class='strut'> </span></p>
<p id='t243' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t244' class='stm mis'> <span class='nam'>ts</span> <span class='op'>=</span> <span class='nam'>datetime</span><span class='op'>.</span><span class='nam'>utcnow</span><span class='op'>(</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>replace</span><span class='op'>(</span><span class='nam'>tzinfo</span><span class='op'>=</span><span class='nam'>utc</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t245' class='stm mis'> <span class='key'>if</span> <span class='nam'>new_entry</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t246' class='stm mis'> <span class='nam'>su</span> <span class='op'>=</span> <span class='nam'>ShareUsage</span><span class='op'>(</span><span class='nam'>name</span><span class='op'>=</span><span class='nam'>subvol_name</span><span class='op'>,</span> <span class='nam'>r_usage</span><span class='op'>=</span><span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>e_usage</span><span class='op'>=</span><span class='nam'>eusage</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t247' class='pln'> <span class='nam'>ts</span><span class='op'>=</span><span class='nam'>ts</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t248' class='stm mis'> <span class='nam'>su</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t249' class='pln'> <span class='key'>else</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t250' class='stm mis'> <span class='key'>try</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t251' class='stm mis'> <span class='nam'>su</span> <span class='op'>=</span> <span class='nam'>ShareUsage</span><span class='op'>.</span><span class='nam'>objects</span><span class='op'>.</span><span class='nam'>filter</span><span class='op'>(</span><span class='nam'>name</span><span class='op'>=</span><span class='nam'>subvol_name</span><span class='op'>)</span><span class='op'>.</span><span class='nam'>latest</span><span class='op'>(</span><span class='str'>'id'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t252' class='stm mis'> <span class='nam'>su</span><span class='op'>.</span><span class='nam'>ts</span> <span class='op'>=</span> <span class='nam'>ts</span><span class='strut'> </span></p>
<p id='t253' class='stm mis'> <span class='nam'>su</span><span class='op'>.</span><span class='nam'>count</span> <span class='op'>+=</span> <span class='num'>1</span><span class='strut'> </span></p>
<p id='t254' class='stm mis'> <span class='key'>except</span> <span class='nam'>ShareUsage</span><span class='op'>.</span><span class='nam'>DoesNotExist</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t255' class='stm mis'> <span class='nam'>su</span> <span class='op'>=</span> <span class='nam'>ShareUsage</span><span class='op'>(</span><span class='nam'>name</span><span class='op'>=</span><span class='nam'>subvol_name</span><span class='op'>,</span> <span class='nam'>r_usage</span><span class='op'>=</span><span class='nam'>rusage</span><span class='op'>,</span> <span class='nam'>e_usage</span><span class='op'>=</span><span class='nam'>eusage</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t256' class='pln'> <span class='nam'>ts</span><span class='op'>=</span><span class='nam'>ts</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t257' class='pln'> <span class='key'>finally</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t258' class='stm mis'> <span class='nam'>su</span><span class='op'>.</span><span class='nam'>save</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
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