data-migration-scripts/v4.3.0-extractDimensions.php added

data-migration-scripts/v4.3.0-extractDimensions.php

@@ -0,0 +1,55 @@
+<?php
+# Script creating acdh:hasPixelWidth and acdh:hasPixelHeight
+# for data already existing in the repository
+include '/home/www-data/vendor/autoload.php';
+
+$pdo = new PDO('pgsql:');
+$repo = acdhOeaw\arche\lib\RepoDb::factory('/home/www-data/config/yaml/config-repo.yaml');
+$ph = $repo->getSchema()->imagePxHeight;
+$pw = $repo->getSchema()->imagePxWidth;
+$q = $pdo->prepare("
+    SELECT id 
+    FROM metadata m
+    WHERE
+        property = 'https://vocabs.acdh.oeaw.ac.at/schema#hasFormat'
+	AND value LIKE 'image/%' 
+	AND value NOT LIKE 'image/svg%'
+        AND value <> 'image/vnd.dxf'
+        AND NOT EXISTS (SELECT 1 FROM metadata WHERE id = m.id AND property = ?)
+    ORDER BY id
+");
+$q->execute([$ph]);
+$images = $q->fetchAll(PDO::FETCH_COLUMN);
+$pdo->beginTransaction();
+$q = $pdo->prepare("INSERT INTO metadata (id, property, type, lang, value_n, value) VALUES (?, ?, 'http://www.w3.org/2001/XMLSchema#positiveInteger', '', ?, ?)");
+$N = count($images);
+foreach($images as $n => $id) {
+    if ($n % 100 === 0) {
+        echo ($n + 1) . " / $N\n";
+        $pdo->commit();
+        $pdo->beginTransaction();
+    }
+    $path = sprintf('/home/www-data/data/%02d/%02d/%d', $id % 100, floor($id / 100) % 100, $id);
+    $ret = getimagesize($path);
+    if (is_array($ret)) {
+        $h = $ret[1];
+	$w = $ret[0];
+	$q->execute([$id, $ph, $h, $h]);
+	$q->execute([$id, $pw, $w, $w]);
+    } else {
+	// getimagesize() files for gigabyte-size images but the exiftool manages
+        exec("exiftool '$path'", $output);
+	$w = array_filter($output, fn($x) => str_starts_with($x, 'Image Width'));
+	$w = (int) preg_replace('`^.*: *`', '', reset($w));
+	$h = array_filter($output, fn($x) => str_starts_with($x, 'Image Height'));
+	$h = (int) preg_replace('`^.*: *`', '', reset($h));
+	if ($w > 0 && $h > 0) {
+	    $q->execute([$id, $ph, $h, $h]);
+	    $q->execute([$id, $pw, $w, $w]);
+	} else {
+            echo "$path doesn't exist or is not an image $w $h\n";
+	}
+    }
+}
+$pdo->commit();
+