1 files changed, 78 insertions, 0 deletions
diff --git a/src/compiler/codegen/content.ts b/src/compiler/codegen/content.ts
new file mode 100644
index 000000000..14542d533
--- /dev/null
+++ b/src/compiler/codegen/content.ts
@@ -0,0 +1,78 @@
+import path from 'path';
+import { fdir, PathsOutput } from 'fdir';
+
+/**
+ * Handling for import.meta.glob and import.meta.globEager
+ */
+
+interface GlobOptions {
+  namespace: string;
+  filename: string;
+}
+
+interface GlobResult {
+  /** Array of import statements to inject */
+  imports: Set<string>;
+  /** Replace original code with */
+  code: string;
+}
+
+const crawler = new fdir();
+
+/** General glob handling */
+function globSearch(spec: string, { filename }: { filename: string }): string[] {
+  try {
+    // Note: fdir’s glob requires you to do some work finding the closest non-glob folder.
+    // For example, this fails: .glob("./post/*.md").crawl("/…/astro/pages") ❌
+    //       …but this doesn’t: .glob("*.md").crawl("/…/astro/pages/post")   ✅
+    let globDir = '';
+    let glob = spec;
+    for (const part of spec.split('/')) {
+      if (!part.includes('*')) {
+        // iterate through spec until first '*' is reached
+        globDir = path.posix.join(globDir, part); // this must be POSIX-style
+        glob = glob.replace(`${part}/`, ''); // move parent dirs off spec, and onto globDir
+      } else {
+        // at first '*', exit
+        break;
+      }
+    }
+
+    const cwd = path.join(path.dirname(filename), globDir.replace(/\//g, path.sep)); // this must match OS (could be '/' or '\')
+    let found = crawler.glob(glob).crawl(cwd).sync() as PathsOutput;
+    if (!found.length) {
+      throw new Error(`No files matched "${spec}" from ${filename}`);
+    }
+    return found.map((importPath) => {
+      if (importPath.startsWith('http') || importPath.startsWith('.')) return importPath;
+      return `./` + globDir + '/' + importPath;
+    });
+  } catch (err) {
+    throw new Error(`No files matched "${spec}" from ${filename}`);
+  }
+}
+
+/** import.meta.fetchContent() */
+export function fetchContent(spec: string, { namespace, filename }: GlobOptions): GlobResult {
+  let code = '';
+  const imports = new Set<string>();
+  const importPaths = globSearch(spec, { filename });
+
+  // gather imports
+  importPaths.forEach((importPath, j) => {
+    const id = `${namespace}_${j}`;
+    imports.add(`import { __content as ${id} } from '${importPath}';`);
+
+    // add URL if this appears within the /pages/ directory (probably can be improved)
+    const fullPath = path.resolve(path.dirname(filename), importPath);
+    if (fullPath.includes(`${path.sep}pages${path.sep}`)) {
+      const url = importPath.replace(/^\./, '').replace(/\.md$/, '');
+      imports.add(`${id}.url = '${url}';`);
+    }
+  });
+
+  // generate replacement code
+  code += `${namespace} = [${importPaths.map((_, j) => `${namespace}_${j}`).join(',')}];\n`;
+
+  return { imports, code };
+}