feat: append-data cli flag

src/cmd.ts

@@ -5,12 +5,14 @@ import { LogLevel, ScaffoldCmdConfig } from "./types"
 import { Scaffold } from "./scaffold"
 import path from "path"
 import fs from "fs/promises"
+import { OptionsBase } from "massarg/types"
+import { parseAppendData } from "./utils"
 
 export async function parseCliArgs(args = process.argv.slice(2)) {
   const pkg = JSON.parse((await fs.readFile(path.join(__dirname, "package.json"))).toString())
 
   return (
-    massarg<ScaffoldCmdConfig & { help: boolean; extras: string[] }>()
+    massarg<ScaffoldCmdConfig>()
       .main(Scaffold)
       .option({
         name: "name",
@@ -48,6 +50,13 @@ export async function parseCliArgs(args = process.argv.slice(2)) {
         description: "Add custom data to the templates. By default, only your app name is included.",
         parse: (v) => JSON.parse(v),
       })
+      .option({
+        name: "append-data",
+        aliases: ["D"],
+        description:
+          "Append additional custom data to the templates, which will overwrite --data, using an alternate syntax: --D key1=string -D key2:=raw",
+        parse: parseAppendData,
+      })
       .option({
         name: "create-sub-folder",
         aliases: ["s"],

src/utils.ts

@@ -1,6 +1,14 @@
 import path from "path"
 import { F_OK } from "constants"
-import { DefaultHelpers, FileResponse, FileResponseHandler, Helper, LogLevel, ScaffoldConfig } from "./types"
+import {
+  DefaultHelpers,
+  FileResponse,
+  FileResponseHandler,
+  Helper,
+  LogLevel,
+  ScaffoldCmdConfig,
+  ScaffoldConfig,
+} from "./types"
 import camelCase from "lodash/camelCase"
 import snakeCase from "lodash/snakeCase"
 import kebabCase from "lodash/kebabCase"
@@ -13,6 +21,7 @@ import dtAdd from "date-fns/add"
 import dtFormat from "date-fns/format"
 import dtParseISO from "date-fns/parseISO"
 import { glob, hasMagic } from "glob"
+import { OptionsBase } from "massarg/types"
 
 const dateFns = {
   add: dtAdd,
@@ -372,3 +381,13 @@ export function logInitStep(config: ScaffoldConfig): void {
   })
   log(config, LogLevel.Info, "Data:", config.data)
 }
+
+export function parseAppendData(value: string, options: ScaffoldCmdConfig & OptionsBase): unknown {
+  const data = options.data ?? {}
+  const [key, val] = value.split(/\:?=/)
+  // raw
+  if (value.includes(":=") && !val.includes(":=")) {
+    return { ...data, [key]: JSON.parse(val) }
+  }
+  return { ...data, [key]: val }
+}

tests/utils.test.ts

@@ -1,7 +1,8 @@
-import { dateHelper, handlebarsParse, nowHelper } from "../src/utils"
-import { ScaffoldConfig } from "../src/types"
+import { dateHelper, handlebarsParse, nowHelper, parseAppendData } from "../src/utils"
+import { ScaffoldCmdConfig, ScaffoldConfig } from "../src/types"
 import path from "path"
 import * as dateFns from "date-fns"
+import { OptionsBase } from "massarg/types"
 
 const blankConf: ScaffoldConfig = {
   verbose: 0,
@@ -11,6 +12,20 @@ const blankConf: ScaffoldConfig = {
   data: { name: "test" },
 }
 
+const blankCliConf: ScaffoldCmdConfig & OptionsBase = {
+  verbose: 0,
+  name: "",
+  output: "",
+  templates: [],
+  data: { name: "test" },
+  overwrite: false,
+  createSubFolder: false,
+  dryRun: false,
+  quiet: false,
+  extras: [],
+  help: false,
+}
+
 describe("Utils", () => {
   describe("handlebarsParse", () => {
     let origSep: any
@@ -88,4 +103,18 @@ describe("Utils", () => {
       })
     })
   })
+
+  describe("parseAppendData", () => {
+    test('works for "key=value"', () => {
+      expect(parseAppendData("key=value", blankCliConf)).toEqual({ key: "value", name: "test" })
+    })
+
+    test('works for "key:=value"', () => {
+      expect(parseAppendData("key:=123", blankCliConf)).toEqual({ key: 123, name: "test" })
+    })
+
+    test("overwrites existing value", () => {
+      expect(parseAppendData("name:=123", blankCliConf)).toEqual({ name: 123 })
+    })
+  })
 })