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Thomas Vincent
2761fdc226
* fix(rrd): [develop] retain source identity after CF fallback Signed-off-by: Thomas Vincent <thomasvincent@gmail.com> * test: measure native consolidation fallback coverage Signed-off-by: Thomas Vincent <thomasvincent@gmail.com> --------- Signed-off-by: Thomas Vincent <thomasvincent@gmail.com>
50 lines
2.0 KiB
PHP
50 lines
2.0 KiB
PHP
<?php
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// Copyright (C) 2026 The Cacti Group. GPL-2.0-or-later.
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require dirname(__DIR__, 3) . '/Helpers/RequestCoverage.php';
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require dirname(__DIR__, 3) . '/bootstrap-unit.php';
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require_once CACTI_PATH_LIBRARY . '/rrd.php';
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// Compile the original statements without rewriting their source or line numbers.
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$file = CACTI_PATH_LIBRARY . '/rrd.php';
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$source = file_get_contents($file);
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$start = strpos($source, '// Restore the $cf_reference');
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$end = strpos($source, '// +++++++++++++++++++++++ GRAPH ITEMS: CDEF START', $start);
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if ($start === false || $end === false) {
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throw new RuntimeException('Cannot locate consolidation fallback');
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}
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$blocks = [[$start, substr($source, $start, $end - $start)]];
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if (!preg_match('/^.*\$cdef_string = str_replace\(\x27CURRENT_DATA_SOURCE\x27.*$/m', $source, $replacement, PREG_OFFSET_CAPTURE)) {
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throw new RuntimeException('Cannot locate data source substitution');
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}
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$blocks[] = [$replacement[0][1], $replacement[0][0]];
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$temporary = [];
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try {
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foreach ($blocks as [$offset, $body]) {
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$path = tempnam(sys_get_temp_dir(), 'cacti-cf-contract-');
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file_put_contents($path, '<?php ' . str_repeat("\n", substr_count(substr($source, 0, $offset), "\n")) . $body);
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$GLOBALS['cacti_fixture_source_map'][$path] = $file;
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$temporary[] = $path;
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}
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foreach ([[3, 1], [1, 3], [1, 2], [1, 4], [3, 3]] as [$preferred, $available]) {
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$graph_item = ['data_template_rrd_id' => 42, 'cf_reference' => $preferred, 'consolidation_function_id' => $preferred];
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$cf_ds_cache = ['7:1' => 0, '42:' . $available => 9];
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require $temporary[0];
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$cdef_string = 'CURRENT_DATA_SOURCE,2,*';
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require $temporary[1];
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if ($cf_ds_key !== '42:' . $available || $cdef_string !== generate_graph_def_name(9) . ',2,*') {
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throw new RuntimeException('Fallback selected a different data source');
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}
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}
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print "PASS: all four consolidation fallbacks and preferred consolidation retain source identity\n";
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} finally {
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foreach ($temporary as $path) {
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unlink($path);
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}
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}
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