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MDL-64994 analytics: Add a simple semantic version check method

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This method is to be used for checking that a compatible version of the
moodlemlbackend package is installed on the server. The package is
expected to use the semantic versioning scheme (semver.org).
This commit is contained in:
David Mudrák 2019-03-05 13:47:14 +01:00
parent 3271c39c74
commit 2d8405e99e
2 changed files with 218 additions and 0 deletions
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35
lib/mlbackend/python/classes/processor.php
View File

@ -395,4 +395,39 @@ class processor implements \core_analytics\classifier, \core_analytics\regresso
// This is not ideal, but there is no read access to moodle filesystem files.
return $file->copy_content_to_temp('core_analytics');
}
/**
* Check that the given package version can be used and return the error status.
*
* When evaluating the version, we assume the sematic versioning scheme as described at
* https://semver.org/.
*
* @param string $actual The actual Python package version
* @param string $required The required version of the package
* @return int -1 = actual version is too low, 1 = actual version too high, 0 = actual version is ok
*/
public static function check_pip_package_version($actual, $required = self::REQUIRED_PIP_PACKAGE_VERSION) {
if (empty($actual)) {
return -1;
}
if (version_compare($actual, $required, '<')) {
return -1;
}
$parts = explode('.', $required);
$requiredapiver = reset($parts);
$parts = explode('.', $actual);
$actualapiver = reset($parts);
if ($requiredapiver > 0 || $actualapiver > 1) {
if (version_compare($actual, $requiredapiver + 1, '>=')) {
return 1;
}
}
return 0;
}
}

183
lib/mlbackend/python/tests/processor_test.php Normal file
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@ -0,0 +1,183 @@
<?php
// This file is part of Moodle - https://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Provides the {@link mlbackend_python_processor_testcase} class.
*
* @package mlbackend_python
* @category test
* @copyright 2019 David Mudrák <david@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Unit tests for the {@link \mlbackend_python\processor} class.
*
* @copyright 2019 David Mudrák <david@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class mlbackend_python_processor_testcase extends advanced_testcase {
/**
* Test implementation of the {@link \mlbackend_python\processor::check_pip_package_version()} method.
*
* @dataProvider check_pip_package_versions
* @param string $actual A sample of the actual package version
* @param string $required A sample of the required package version
* @param int $result Expected value returned by the tested method
*/
public function test_check_pip_package_version($actual, $required, $result) {
$this->assertSame($result, \mlbackend_python\processor::check_pip_package_version($actual, $required));
}
/**
* Check that the {@link \mlbackend_python\processor::check_pip_package_version()} can be called with single argument.
*/
public function test_check_pip_package_version_default() {
$this->assertSame(-1, \mlbackend_python\processor::check_pip_package_version('0.0.1'));
$this->assertSame(0, \mlbackend_python\processor::check_pip_package_version(
\mlbackend_python\processor::REQUIRED_PIP_PACKAGE_VERSION));
}
/**
* Provides data samples for the {@link self::test_check_pip_package_version()}.
*
* @return array
*/
public function check_pip_package_versions() {
return [
// Exact match.
[
'0.0.5',
'0.0.5',
0,
],
[
'1.0.0',
'1.0.0',
0,
],
// Actual version higher than required, yet still API compatible.
[
'1.0.3',
'1.0.1',
0,
],
[
'2.1.3',
'2.0.0',
0,
],
[
'1.1.5',
'1.1',
0,
],
[
'2.0.3',
'2',
0,
],
// Actual version not high enough to meet the requirements.
[
'0.0.5',
'1.0.0',
-1,
],
[
'0.37.0',
'1.0.0',
-1,
],
[
'0.0.5',
'0.37.0',
-1,
],
[
'2.0.0',
'2.0.2',
-1,
],
[
'2.7.0',
'3.0',
-1,
],
[
'2.8.9-beta1',
'3.0',
-1,
],
[
'1.1.0-rc1',
'1.1.0',
-1,
],
// Actual version too high and no longer API compatible.
[
'2.0.0',
'1.0.0',
1,
],
[
'3.1.5',
'2.0',
1,
],
[
'3.0.0',
'1.0',
1,
],
[
'2.0.0',
'0.0.5',
1,
],
[
'3.0.2',
'0.37.0',
1,
],
// Zero major version requirement is fulfilled with 1.x API (0.x are not considered stable APIs).
[
'1.0.0',
'0.0.5',
0,
],
[
'1.8.6',
'0.37.0',
0,
],
// Empty version is never good enough.
[
'',
'1.0.0',
-1,
],
[
'0.0.0',
'0.37.0',
-1,
],
];
}
}