1 files changed, 56 insertions, 0 deletions
diff --git a/src/import.ts b/src/import.ts
new file mode 100644
index 0000000..ffc2c68
--- /dev/null
+++ b/src/import.ts
@@ -0,0 +1,56 @@
+
+
+
+/// import
+
+import { dirname, join } from "https://deno.land/std/path/mod.ts";
+import { gql } from "./gql.ts";
+
+import type { DocumentNode } from "npm:graphql@16.6.0";
+
+/// util
+
+const { cwd, readFileSync } = Deno;
+const importRegex = /^#\s(import)\s.*(.graphql")/gm;
+const fileRegex = /\w*(.graphql)/g;
+
+
+
+/// export
+
+export function importQL(path: string): DocumentNode | Record<string, unknown> {
+  try {
+    const decoder = new TextDecoder("utf-8");
+    const file = readFileSync(join(cwd(), String(path)));
+    const imports = decoder.decode(file).match(importRegex) || [];
+    let parsedFile = decoder.decode(file);
+
+    /// `import` statements in the supplied schema file
+    /// are parsed to dynamically bring in linked files
+
+    imports.map(imp => {
+      const matchedFilename: null | Array<string> = imp.match(fileRegex);
+
+      if (!matchedFilename || !matchedFilename.length || matchedFilename.length < 1)
+        return;
+
+      const filename = matchedFilename[0];
+      const importedFileDecoder = new TextDecoder("utf-8");
+      const importedFile = readFileSync(join(cwd(), dirname(String(path)), filename));
+      const decodedFile = importedFileDecoder.decode(importedFile);
+
+      parsedFile = parsedFile.replace(imp, decodedFile);
+    });
+
+    return gql`
+      ${parsedFile}
+    `;
+  } catch(parseError) {
+    console.error(new Error(`error parsing file [${String(path)}]`), parseError);
+    return {};
+  }
+}
+
+
+
+/// fork of https://github.com/crewdevio/importql