Vasty improve linting performance

.remarkrc.mjs

@@ -14,19 +14,23 @@ export default {
         remarkPresetLintRecommended,
         remarkNoInlineCodeFences,
         remarkNoHtmlLinks,
-        [
-            remarkLintNoDeadUrls,
-            {
-                skipLocalhost: false,
-                skipOffline: true,
-                skipUrlPatterns: [
-                    'https://github.com/signup',
-                    'https://code.visualstudio.com/',
-                    'https://www.conventionalcommits.org/en/v1.0.0/',
-                    'https://vale.sh/',
-                    'https://squoosh.app/',
-                ], // Add known flaky URL patterns here
-            },
-        ],
+        // @ts-expect-error I don't think we should add node types to an astro project?
+        // only run dead link checker in CI to save time in dev
+        process.env.CI
+            ? [
+                  remarkLintNoDeadUrls,
+                  {
+                      skipLocalhost: false,
+                      skipOffline: true,
+                      skipUrlPatterns: [
+                          'https://github.com/signup',
+                          'https://code.visualstudio.com/',
+                          'https://www.conventionalcommits.org/en/v1.0.0/',
+                          'https://vale.sh/',
+                          'https://squoosh.app/',
+                      ], // Add known flaky URL patterns here
+                  },
+              ]
+            : () => undefined,
     ],
 };

scripts/validate-regions.ts

@@ -15,6 +15,7 @@ const CODE_REGION_SOURCES_KEY_RE = /^codeRegionSources:\s*$/;
 const CODE_REGION_SOURCE_ENTRY_RE = /^\s+([\w-]+):\s*(.+?)\s*$/;
 
 const errors: string[] = [];
+const extensions: Set<string> = new Set();
 
 function parseCodeRegionSources(content: string): Map<string, string> {
     const sources = new Map<string, string>();
@@ -35,9 +36,9 @@ function parseCodeRegionSources(content: string): Map<string, string> {
         const m = line.match(CODE_REGION_SOURCE_ENTRY_RE);
         if (m) {
             sources.set(m[1]!, m[2]!);
+            extensions.add(m[2]!.split('.').at(-1)!);
         }
     }
-
     return sources;
 }
 
@@ -147,11 +148,19 @@ function validateSource(filePath: string) {
 }
 
 function walkExamples(dir: string) {
+    if (dir.indexOf('build') != -1 || dir.indexOf('gradle') != -1) {
+        // don't even bother with directories that won't contain source files
+        return;
+    }
     for (const entry of readdirSync(dir, { withFileTypes: true })) {
         const full = join(dir, entry.name);
         if (entry.isDirectory()) {
             walkExamples(full);
         } else {
+            if (!extensions.has(full.split('.').at(-1)!)) {
+                // we only care about source files
+                continue;
+            }
             validateSource(full);
         }
     }