Fix minor issues with CLI (#115)

Fix a couple of small issues I have found while working on the tutorial.

 - a shebang is needed in the CLI file to work with npm
- hash the indexers filename so that users can use special characters in
their indexers name

change/apibara-f4d98eff-8f08-4f04-bf68-8ac249c3c0e7.json

@@ -0,0 +1,7 @@
+{
+  "type": "prerelease",
+  "comment": "cli: add shebang banner to cli module",
+  "packageName": "apibara",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}

packages/cli/build.config.ts

@@ -41,4 +41,10 @@ export default defineBuildConfig({
     "apibara/runtime/meta",
     ...modules.map((module) => `apibara/${module}`),
   ],
+  rollup: {
+    output: {
+      banner: ({ fileName }) =>
+        fileName === "cli/index.mjs" ? "#!/usr/bin/env node" : undefined,
+    },
+  },
 });

packages/cli/package.json

@@ -99,6 +99,7 @@
     "hookable": "^5.5.3",
     "klona": "^2.0.6",
     "magic-string": "^0.30.12",
+    "ohash": "^1.1.4",
     "pathe": "^1.1.2",
     "perfect-debounce": "^1.0.0",
     "pkg-types": "^1.1.3",

packages/cli/src/rollup/plugins/indexers.ts

@@ -1,15 +1,16 @@
 import virtual from "@rollup/plugin-virtual";
 import type { Apibara } from "apibara/types";
+import { hash } from "ohash";
 
 export function indexers(apibara: Apibara) {
   const indexers = [...new Set(apibara.indexers)];
 
   return virtual({
     "#apibara-internal-virtual/indexers": `
-    ${indexers.map((i) => `import ${i.name} from '${i.indexer}';`).join("\n")}
+    ${indexers.map((i) => `import _${hash(i)} from '${i.indexer}';`).join("\n")}
 
     export const indexers = [
-      ${indexers.map((i) => `{ name: "${i.name}", indexer: ${i.name} }`).join(",\n")}
+      ${indexers.map((i) => `{ name: "${i.name}", indexer: _${hash(i)} }`).join(",\n")}
     ];
     `,
   });