1 files changed, 85 insertions, 0 deletions

diff --git a/config/srcPlugin.js b/config/srcPlugin.js
new file mode 100644
index 0000000..13bee7b
--- /dev/null
+++ b/config/srcPlugin.js
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C)  2022 Kristóf Marussy <kristof@marussy.com>
+ *
+ * This file is part of Sophie.
+ *
+ * Sophie is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { readFile } from 'node:fs/promises';
+
+/** @type {string} */
+const PLUGIN_NAMESPACE = 'sophie-src';
+
+/** @type {RegExp} */
+// eslint-disable-next-line security/detect-non-literal-regexp -- Argument is const.
+const FILTER_REGEXP = new RegExp(`^${PLUGIN_NAMESPACE}:(.+)$`);
+
+/**
+ * An esbuild plugin that import the source of referenced file or package as a string.
+ *
+ * Prefix the imported file name with `sophie-src:` to import its source instead.
+ *
+ * @type { import('esbuild').Plugin }
+ */
+const srcPlugin = {
+  name: 'sophie-inline-service-inject-plugin',
+  setup(build) {
+    build.onResolve(
+      {
+        filter: FILTER_REGEXP,
+      },
+      async ({ path: pathToResolve, importer, resolveDir }) => {
+        const match = FILTER_REGEXP.exec(pathToResolve);
+        if (match === null) {
+          return {
+            path: '',
+            namespace: PLUGIN_NAMESPACE,
+            errors: [
+              {
+                text: `Could not resolve ${pathToResolve}`,
+              },
+            ],
+          };
+        }
+        const { path, errors, warnings } = await build.resolve(match[1], {
+          importer,
+          resolveDir,
+          kind: 'import-statement',
+        });
+        return {
+          path,
+          namespace: PLUGIN_NAMESPACE,
+          errors,
+          warnings,
+        };
+      },
+    );
+    build.onLoad(
+      {
+        filter: /./,
+        namespace: PLUGIN_NAMESPACE,
+      },
+      async ({ path }) => {
+        const src = await readFile(path, 'utf8');
+        return {
+          contents: `export default ${JSON.stringify(src)};`,
+        };
+      },
+    );
+  },
+};
+
+export default srcPlugin;