New non-interactive cli init

cli/introspection/package.json

@@ -29,6 +29,7 @@
     "jest": "^24.9.0",
     "prettier": "^1.19.1",
     "react": "16.11.0",
+    "rimraf": "^3.0.0",
     "ts-jest": "^24.2.0",
     "ts-node": "^8.5.4",
     "typescript": "^3.7.3"

cli/introspection/src/__tests__/__snapshots__/init.test.ts.snap

@@ -0,0 +1,23 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`is schema wriiten on disk replace: 
+We created prisma/schema.prisma for you.
+Edit it with your favorite editor to update your database connection so Prisma can connect to it.
+
+When done, run prisma2 introspect to test the connection and introspect the data model from your existing database.
+Then run prisma2 generate to generate a Prisma Client based on this data model that can be used in your application.
+
+More information in our documentation:
+http://tbd
+ 1`] = `
+"
+We created prisma/schema.prisma for you.
+Edit it with your favorite editor to update your database connection so Prisma can connect to it.
+
+When done, run prisma2 introspect to test the connection and introspect the data model from your existing database.
+Then run prisma2 generate to generate a Prisma Client based on this data model that can be used in your application.
+
+More information in our documentation:
+http://tbd
+"
+`;

cli/introspection/src/__tests__/init.test.ts

@@ -0,0 +1,31 @@
+import { join } from 'path'
+import mkdir from 'make-dir'
+import { promisify } from 'util'
+import fs from 'fs'
+import rimraf from 'rimraf'
+import { Init } from '../commands/Init'
+
+const del = promisify(rimraf)
+const tmp = join(__dirname, '../../tmp')
+
+beforeEach(async () => {
+  await del(tmp)
+  await mkdir(tmp)
+})
+
+beforeEach(async () => {
+  await del(tmp)
+})
+
+test('is schema wriiten on disk replace', async () => {
+  const schemaPath = join(__dirname, '../commands/default.prisma')
+  const defaultSchema = fs.readFileSync(schemaPath, 'utf-8')
+
+  const init = Init.new()
+  const result = await init.parse(['tmp'])
+
+  const schema = fs.readFileSync(join(tmp, 'prisma/schema.prisma'), 'utf-8')
+
+  expect(schema).toMatch(defaultSchema)
+  expect(result).toMatchSnapshot(result)
+})

cli/introspection/src/commands/Init.ts

@@ -1,6 +1,5 @@
 import { Command, arg, format } from '@prisma/cli'
 import { isError } from 'util'
-import { initPrompt } from '../prompt/initPrompt'
 import fs from 'fs'
 import path from 'path'
 import chalk from 'chalk'
@@ -30,31 +29,67 @@ export class Init implements Command {
 
     const outputDirName = args._[0]
     const outputDir = outputDirName ? path.join(process.cwd(), outputDirName) : process.cwd()
+    const prismaFolder = path.join(outputDir, 'prisma')
 
-    if (fs.existsSync(outputDir)) {
-      const schemaExists = fs.existsSync(path.join(outputDir, 'schema.prisma'))
-      const prismaSchemaExists = fs.existsSync(path.join(outputDir, 'prisma/schema.prisma'))
-      if (schemaExists || prismaSchemaExists) {
-        const filePath = schemaExists ? 'schema.prisma' : 'prisma/schema.prisma'
-        console.log(printError(`The project directory must not contain a ${chalk.bold(filePath)} file.`))
-        console.log(
-          printFix(`Run the command in a directory without a ${chalk.bold(filePath)} file
-or provide a project name, e.g.: ${chalk.bold('prisma2 init hello-world')}`),
-        )
-        process.exit(1)
-      }
-    }
-
-    await initPrompt(outputDir)
+    if (fs.existsSync(path.join(outputDir, 'schema.prisma'))) {
+      console.log(printError(`File ${chalk.bold('schema.prisma')} already exists in your project.
+        Please try again in a project that is not yet using Prisma.
+      `))
+      process.exit(1)
+    }
+
+    if (fs.existsSync(prismaFolder)) {
+      console.log(printError(`Folder ${chalk.bold('prisma')} already exists in your project.
+        Please try again in a project that is not yet using Prisma.
+      `))
+      process.exit(1)
+    }
+
+    if (fs.existsSync(path.join(prismaFolder, 'schema.prisma'))) {
+      console.log(printError(`File ${chalk.bold('prisma/schema.prisma')} already exists in your project.
+        Please try again in a project that is not yet using Prisma.
+      `))
+      process.exit(1)
+    }
+
+    if (fs.existsSync(path.join(prismaFolder, 'schema.prisma'))) {
+      console.log(printError(`File ${chalk.bold('prisma/schema.prisma')} already exists in your project.
+        Please try again in a project that is not yet using Prisma.
+      `))
+      process.exit(1)
+    }
+
+    if (!fs.existsSync(outputDir)) {
+      fs.mkdirSync(outputDir)
+    }
+
+    if (!fs.existsSync(prismaFolder)) {
+      fs.mkdirSync(prismaFolder)
+    }
+
+    const defaultSchema = fs.readFileSync(path.join(__dirname, 'default.prisma'), 'utf-8')
+
+    fs.writeFileSync(path.join(prismaFolder, 'schema.prisma'), defaultSchema)
+
+    return format(`
+      We created ${chalk.green('prisma/schema.prisma')} for you.
+      Edit it with your favorite editor to update your database connection so Prisma can connect to it.
+
+      When done, run ${chalk.green('prisma2 introspect')} to test the connection and introspect the data model from your existing database.
+      Then run ${chalk.green('prisma2 generate')} to generate a Prisma Client based on this data model that can be used in your application.
+
+      More information in our documentation:
+      http://tbd
+    `)
   }
 
   help() {
     return console.log(
       format(`
-Usage: prisma2 init
+        Usage: prisma2 init
 
-Initialize files for a new Prisma project
-    `),
+        Setup Prisma for your existing database
+      `),
     )
   }
 }

cli/prisma2/src/CLI.ts

@@ -76,15 +76,15 @@ export class CLI implements Command {
 
     ${chalk.bold('Commands')}
 
-          init   Setup Prisma for your app
+          init   Setup Prisma for your existing database
            dev   Develop your application in watch mode
           lift   Migrate your datamodel
     introspect   Get the datamodel of your database
       generate   Generate Photon
 
     ${chalk.bold('Examples')}
 
-      Initialize files for a new Prisma project
+      Setup Prisma for your existing database
       ${chalk.dim(`$`)} prisma2 init
 
       Start developing and auto migrating your changes locally