separate cli and bin to allow programatic usage of the cli

Author: dotansimha

dev-test/generate-all.sh

@@ -1,3 +1,3 @@
 #/bin/sh
 
-node packages/graphql-codegen-cli/dist/commonjs/cli.js --config ./dev-test/codegen.yml
+node packages/graphql-codegen-cli/dist/commonjs/bin.js --config ./dev-test/codegen.yml

dev-test/generate-watch.sh

@@ -1,3 +1,3 @@
 #/bin/sh
 
-node packages/graphql-codegen-cli/dist/commonjs/cli.js --config ./dev-test/codegen.yml -w
+node packages/graphql-codegen-cli/dist/commonjs/bin.js --config ./dev-test/codegen.yml -w

dev-test/init.sh

@@ -1,3 +1,3 @@
 #/bin/sh
 
-node packages/graphql-codegen-cli/dist/commonjs/cli.js init
+node packages/graphql-codegen-cli/dist/commonjs/bin.js init

packages/graphql-codegen-cli/package.json

@@ -3,9 +3,9 @@
   "version": "1.7.0",
   "license": "MIT",
   "bin": {
-    "gql-gen": "dist/commonjs/cli.js",
-    "graphql-codegen": "dist/commonjs/cli.js",
-    "graphql-code-generator": "dist/commonjs/cli.js"
+    "gql-gen": "dist/commonjs/bin.js",
+    "graphql-codegen": "dist/commonjs/bin.js",
+    "graphql-code-generator": "dist/commonjs/bin.js"
   },
   "repository": {
     "type": "git",

packages/graphql-codegen-cli/src/bin.ts

@@ -0,0 +1,14 @@
+#!/usr/bin/env node
+
+import { runCli } from './cli';
+import { cliError } from './utils/cli-error';
+
+const [, , cmd] = process.argv;
+
+runCli(cmd)
+  .then(() => {
+    process.exit(0);
+  })
+  .catch(error => {
+    cliError(error);
+  });

packages/graphql-codegen-cli/src/cli.ts

@@ -1,34 +1,22 @@
-#!/usr/bin/env node
-
 import { generate } from './generate-and-save';
 import { init } from './init';
-import { cliError } from './utils/cli-error';
 import { createConfig } from './config';
 import { lifecycleHooks } from './hooks';
 
-const [, , cmd] = process.argv;
-
-switch (cmd) {
-  case 'init':
-    init()
-      .then(() => {
-        process.exit(0);
-      })
-      .catch(cliError);
-    break;
+export function runCli(cmd: string): Promise<any> {
+  switch (cmd) {
+    case 'init':
+      return init();
+    default: {
+      const config = createConfig();
 
-  default: {
-    const config = createConfig();
-
-    config.then(config => {
-      return generate(config)
-        .then(() => {
-          process.exit(0);
-        })
-        .catch(async error => {
+      return config.then(config => {
+        return generate(config).catch(async error => {
           await lifecycleHooks(config.hooks).onError(error.toString());
-          cliError(error);
+
+          throw error;
         });
-    });
+      });
+    }
   }
 }

packages/graphql-codegen-cli/src/index.ts

@@ -1,2 +1,6 @@
 export { executeCodegen } from './codegen';
 export { generate } from './generate-and-save';
+export * from './config';
+export * from './init';
+export * from './utils/cli-error';
+export * from './cli';

packages/graphql-codegen-cli/tsconfig.json

@@ -19,6 +19,6 @@
     "noUnusedLocals": true,
     "noUnusedParameters": false
   },
-  "files": ["src/index.ts", "src/cli.ts", "src/declarations.d.ts"],
+  "files": ["src/index.ts", "src/bin.ts", "src/declarations.d.ts"],
   "exclude": ["node_modules"]
 }