Convert wordpress links to local links, implement post_link tag that includes baseurl

_scripts/convert-links.php

@@ -0,0 +1,61 @@
+<?php
+require __DIR__ . '/../_php/autoload.php';
+
+use Symfony\Component\Yaml\Yaml;
+
+$sNewDir = 'blog/_posts.new';
+if (!is_dir($sNewDir)) {
+   mkdir($sNewDir); 
+}
+
+$aPosts = [];
+foreach (glob('blog/_posts/*.md') as $sFile) {
+    $sBasename = basename($sFile, '.md');
+
+    $sContents = file_get_contents($sFile);
+    $aContents = explode("\n", $sContents);
+    $aParts = explode('--', implode("\n", array_slice($aContents, 1)));
+    $aYaml = Yaml::parse(trim(str_replace("  - \n", null, current($aParts))));
+
+    if (isset($aYaml['id'])) {
+        $aPosts[$aYaml['id']] = $sBasename;
+    }
+}
+
+foreach (glob('blog/_posts/*.md') as $sFile) {
+    $sBasename = basename($sFile);
+
+    printf("%s...\n", $sBasename);
+
+    $sContents = file_get_contents($sFile);
+    $aContents = explode("\n", $sContents);
+    $aParts = explode('--', implode("\n", array_slice($aContents, 1)));
+    $aYaml = Yaml::parse(trim(str_replace("  - \n", null, current($aParts))));
+    
+    $sContents = end($aParts);
+    if (!preg_match_all('~/\?p=([\d]+)~', $sContents, $aMatches, PREG_SET_ORDER)) {
+        echo "    no local urls found\n";
+        continue;
+    }
+
+    foreach ($aMatches as $aMatch) {
+        $iId = $aMatch[1];
+        if (isset($aPosts[$iId])) {
+            $sPost = $aPosts[$iId];
+            printf("    substituting id (%d) with: %s\n", $iId, $sPost);
+            $sContents = str_replace($aMatch[0], sprintf('{%% post_link %s %%}', $sPost), $sContents);
+        } else {
+            printf("    unknown id: %d\n", $iId);
+        }
+    }
+
+    $sNewFile = sprintf('%s/%s', $sNewDir, $sBasename);
+    $sNewContents = '---' . "\n" . yamlDump($aYaml) . '---' . "\n" . trim($sContents);
+    file_put_contents($sNewFile, $sNewContents);
+    echo "    new file saved!\n";
+}
+// echo implode("\n", array_unique($aCharacters));
+
+function yamlDump($aData) {
+    return str_replace("'", null, Yaml::dump($aData, 4, 2));
+}