update README.md

Fix transform of windows-style paths

.vscode/settings.json

@@ -3,10 +3,11 @@
   "npm.packageManager": "yarn",
   "cSpell.words": [
     "massarg",
-    "nodir",
     "nobrace",
-    "noext",
     "nocomment",
-    "nonegate"
+    "nodir",
+    "noext",
+    "nonegate",
+    "subdir"
   ]
 }

MIGRATION.md

@@ -5,6 +5,7 @@ between versions. With these notable exceptions:
 
 - Some of the argument names have changed
 - Template syntax has been improved
+- The command to run Scaffold has been simplified from `new SimpleScaffold(opts).run()` to `SimpleScaffold(opts)`, which now returns a promise that you can await to know when the process has been completed.
 
 ## Argument changes
 

README.md

@@ -36,40 +36,45 @@ Create structured files based on templates.
 
 Options:
 
-  --help|-h                 Display help information
+  --help|-h                       Display help information
 
-  --name|-n                 Name to be passed to the generated files. {{name}} and
-                            {{Name}} inside contents and file names will be replaced
-                            accordingly.
+  --name|-n                       Name to be passed to the generated files. {{name}} and
+                                  {{Name}} inside contents and file names will be replaced
+                                  accordingly.
 
-  --output|-o               Path to output to. If --create-sub-folder is enabled, the
-                            subfolder will be created inside this path.
+  --output|-o                     Path to output to. If --create-sub-folder is enabled,
+                                  the subfolder will be created inside this path.
+                                  (default: current dir)
 
-  --templates|-t            Template files to use as input. You may provide multiple
-                            files, each of which can be a relative or absolute path, or a glob
-                            pattern for multiple file matching easily. (default: current dir)
+  --templates|-t                  Template files to use as input. You may provide multiple
+                                  files, each of which can be a relative or absolute path, or a
+                                  glob pattern for multiple file matching easily.
 
-  --overwrite|-w            Enable to override output files, even if they already exist.
-                            (default: false)
+  --overwrite|-w                  Enable to override output files, even if they already
+                                  exist. (default: false)
 
-  --data|-d                 Add custom data to the templates. By default, only your app
-                            name is included.
+  --data|-d                       Add custom data to the templates. By default, only your
+                                  app name is included.
 
-  --create-sub-folder|-s    Create subfolder with the input name (default:
-                            false)
+  --create-sub-folder|-s          Create subfolder with the input name
+                                  (default: false)
 
-  --quiet|-q                Suppress output logs (Same as --verbose 0)
-                            (default: false)
+  --sub-folder-name-helper|-sh    Default helper to apply to subfolder name when using
+                                  `--create-sub-folder true`.
 
-  --verbose|-v              Determine amount of logs to display. The values are: 0
-                            (none) | 1 (debug) | 2 (info) | 3 (warn) | 4 (error). The
-                            provided level will display messages of the same level or higher.
-                            (default: 2)
+  --quiet|-q                      Suppress output logs (Same as --verbose 0)
+                                  (default: false)
 
-  --dry-run|-dr             Don't emit files. This is good for testing your scaffolds and
-                            making sure they don't fail, without having to write actual file
-                            contents or create directories. (default:
-                            false)
+  --verbose|-v                    Determine amount of logs to display. The values are:
+                                  0 (none) | 1 (debug) | 2 (info) | 3 (warn) | 4
+                                  (error). The provided level will display messages of
+                                  the same level or higher. (default:
+                                  2)
+
+  --dry-run|-dr                   Don't emit files. This is good for testing your
+                                  scaffolds and making sure they don't fail, without having to
+                                  write actual file contents or create directories.
+                                  (default: false)
 ```
 
 You can also add this as a script in your `package.json`:
@@ -98,7 +103,8 @@ const config = {
   templates: [path.join(__dirname, "scaffolds", "component")],
   output: path.join(__dirname, "src", "components"),
   createSubFolder: true,
-  locals: {
+  subFolderNameHelper: "upperCase"
+  data: {
     property: "value",
   },
   helpers: {
@@ -184,6 +190,9 @@ config.helpers = {
 }
 ```
 
+These helpers will also be available to you when using `subFolderNameHelper` or
+`--sub-folder-name-helper` as a possible value.
+
 ## Examples
 
 ### Command Example
@@ -280,6 +289,6 @@ Some tips on getting around the code:
 - Use `yarn cmd` to use the CLI feature of Simple Scaffold from within the root directory,
   enabling you to test different behaviors. See `yarn cmd -h` for more information.
 
-  > This requires an updated build, and does not trigger one itself. Either use `yarn dev` or
-  > `yarn build` before running this, or use `yarn build-cmd` instead, which triggers a build right
-  > before running the command with the rest of the given arguments.
+  > This requires an updated build, and does not trigger one itself. Either use `yarn dev` to watch
+  > for changes and build, or `yarn build` before running this, or use `yarn build-cmd` instead,
+  > which triggers a build right before running the command with the rest of the given arguments.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "simple-scaffold",
-  "version": "1.0.0",
+  "version": "1.0.3",
   "description": "Create files based on templates",
   "repository": "https://github.com/chenasraf/simple-scaffold.git",
   "author": "Chen Asraf <inbox@casraf.com>",
@@ -18,7 +18,6 @@
     "build-cmd": "yarn build && yarn cmd"
   },
   "dependencies": {
-    "args": "^5.0.1",
     "chalk": "^4.1.2",
     "glob": "^7.1.3",
     "handlebars": "^4.7.7",

src/cmd.ts

@@ -51,6 +51,11 @@ export function parseCliArgs(args = process.argv.slice(2)) {
         defaultValue: false,
         description: "Create subfolder with the input name",
       })
+      .option({
+        name: "sub-folder-name-helper",
+        aliases: ["sh"],
+        description: "Default helper to apply to subfolder name when using `--create-sub-folder true`.",
+      })
       .option({
         name: "quiet",
         aliases: ["q"],

src/scaffold.ts

@@ -1,94 +1,88 @@
-import { glob } from "glob"
 import path from "path"
-import { promisify } from "util"
-import { promises as fsPromises } from "fs"
-const { readFile, writeFile } = fsPromises
 
 import {
   createDirIfNotExists,
   getOptionValueForFile,
   handleErr,
-  handlebarsParse,
   log,
-  pathExists,
   pascalCase,
   isDir,
   removeGlob,
   makeRelativePath,
   registerHelpers,
+  getTemplateGlobInfo,
+  ensureFileExists,
+  getFileList,
+  getBasePath,
+  copyFileTransformed,
+  getTemplateFileInfo,
+  logInitStep,
+  logInputFile,
 } from "./utils"
 import { LogLevel, ScaffoldConfig } from "./types"
 
+/**
+ * Create a scaffold using given `options`.
+ *
+ * #### Create files
+ * To create a file structure to output, use any directory and file structure you would like.
+ * Inside folder names, file names or file contents, you may place `{{ var }}` where `var` is either
+ * `name` which is the scaffold name you provided or one of the keys you provided in the `data` option.
+ *
+ * The contents and names will be replaced with the transformed values so you can use your original structure as a
+ * boilerplate for other projects, components, modules, or even single files.
+ *
+ * #### Helpers
+ * Helpers are functions you can use to transform your `{{ var }}` contents into other values without having to
+ * pre-define the data and use a duplicated key. Common cases are transforming name-case format
+ * (e.g. `MyName` → `my_name`), so these have been provided as defaults:
+ *
+ * | Helper name | Example code            | Example output |
+ * | ----------- | ----------------------- | -------------- |
+ * | camelCase   | `{{ camelCase name }}`  | myName         |
+ * | snakeCase   | `{{ snakeCase name }}`  | my_name        |
+ * | startCase   | `{{ startCase name }}`  | My Name        |
+ * | kebabCase   | `{{ kebabCase name }}`  | my-name        |
+ * | hyphenCase  | `{{ hyphenCase name }}` | my-name        |
+ * | pascalCase  | `{{ pascalCase name }}` | MyName         |
+ * | upperCase   | `{{ upperCase name }}`  | MYNAME         |
+ * | lowerCase   | `{{ lowerCase name }}`  | myname         |
+ *
+ * Any functions you provide in `helpers` option will also be available to you to make custom formatting as you see fit
+ * (for example, formatting a date)
+ */
 export async function Scaffold({ ...options }: ScaffoldConfig) {
   options.output ??= process.cwd()
 
   registerHelpers(options)
   try {
     options.data = { name: options.name, Name: pascalCase(options.name), ...options.data }
-    log(options, LogLevel.Debug, "Full config:", {
-      name: options.name,
-      templates: options.templates,
-      output: options.output,
-      createSubfolder: options.createSubFolder,
-      data: options.data,
-      overwrite: options.overwrite,
-      quiet: options.quiet,
-      helpers: Object.keys(options.helpers ?? {}),
-      verbose: `${options.verbose} (${Object.keys(LogLevel).find(
-        (k) => (LogLevel[k as any] as unknown as number) === options.verbose!
-      )})`,
-    })
-    log(options, LogLevel.Info, "Data:", options.data)
-    for (let template of options.templates) {
+    logInitStep(options)
+    for (let _template of options.templates) {
       try {
-        const _isGlob = glob.hasMagic(template)
-        if (!_isGlob && !(await pathExists(template))) {
-          const err: NodeJS.ErrnoException = new Error(`ENOENT, no such file or directory ${template}`)
-          err.code = "ENOENT"
-          err.path = "non-existing-input"
-          err.errno = -2
-          throw err
-        }
-        const _nonGlobTemplate = _isGlob ? removeGlob(template) : template
-        log(options, LogLevel.Debug, "before isDir", "isGlob:", _isGlob, template)
-        const _isDir = _isGlob ? true : await isDir(template)
-        log(options, LogLevel.Debug, "after isDir", _isDir)
-        const _shouldAddGlob = !_isGlob && _isDir
-        const origTemplate = template
-        if (_shouldAddGlob) {
-          template = template + "/**/*"
-        }
-        log(options, LogLevel.Debug, "before glob")
-        const files = await promisify(glob)(template, {
-          dot: true,
-          debug: options.verbose === LogLevel.Debug,
-          nodir: true,
-        })
-        log(options, LogLevel.Debug, "after glob")
+        const { nonGlobTemplate, origTemplate, isDirOrGlob, isGlob, template } = await getTemplateGlobInfo(
+          options,
+          _template
+        )
+        await ensureFileExists(template, isDirOrGlob)
+        const files = await getFileList(options, template)
         for (const inputFilePath of files) {
           if (await isDir(inputFilePath)) {
             continue
           }
-          const relPath = makeRelativePath(path.dirname(removeGlob(inputFilePath).replace(_nonGlobTemplate, "")))
-          const basePath = path
-            .resolve(process.cwd(), relPath)
-            .replace(process.cwd() + "/", "")
-            .replace(process.cwd(), "")
-          log(
-            options,
-            LogLevel.Debug,
-            `\nprocess.cwd(): ${process.cwd()}`,
-            `\norigTemplate: ${origTemplate}`,
-            `\nrelPath: ${relPath}`,
-            `\ntemplate: ${template}`,
-            `\ninputFilePath: ${inputFilePath}`,
-            `\nnonGlobTemplate: ${_nonGlobTemplate}`,
-            `\nbasePath: ${basePath}`,
-            `\nisDir: ${_isDir}`,
-            `\nisGlob: ${_isGlob}`,
-            `\n`
-          )
-          await handleTemplateFile(inputFilePath, basePath, options, options.data)
+          const relPath = makeRelativePath(path.dirname(removeGlob(inputFilePath).replace(nonGlobTemplate, "")))
+          const basePath = getBasePath(relPath)
+          logInputFile(options, {
+            origTemplate,
+            relPath,
+            template,
+            inputFilePath,
+            nonGlobTemplate,
+            basePath,
+            isDirOrGlob,
+            isGlob,
+          })
+          await handleTemplateFile(options, options.data, { templatePath: inputFilePath, basePath })
         }
       } catch (e: any) {
         handleErr(e)
@@ -99,22 +93,19 @@ export async function Scaffold({ ...options }: ScaffoldConfig) {
     throw e
   }
 }
-
 async function handleTemplateFile(
-  templatePath: string,
-  basePath: string,
   options: ScaffoldConfig,
-  data: Record<string, string>
+  data: Record<string, string>,
+  { templatePath, basePath }: { templatePath: string; basePath: string }
 ): Promise<void> {
   return new Promise(async (resolve, reject) => {
     try {
-      const inputPath = path.resolve(process.cwd(), templatePath)
-      const outputPathOpt = getOptionValueForFile(options, inputPath, data, options.output)
-      const outputDir = path.resolve(
-        process.cwd(),
-        ...([outputPathOpt, basePath, options.createSubFolder ? options.name : undefined].filter(Boolean) as string[])
-      )
-      const outputPath = handlebarsParse(options, path.join(outputDir, path.basename(inputPath)), data).toString()
+      const { inputPath, outputPathOpt, outputDir, outputPath, exists } = await getTemplateFileInfo(options, data, {
+        templatePath,
+        basePath,
+      })
+      const overwrite = getOptionValueForFile(options, inputPath, data, options.overwrite ?? false)
+
       log(
         options,
         LogLevel.Debug,
@@ -126,29 +117,11 @@ async function handleTemplateFile(
         `\nFull output path: ${outputPath}`,
         `\n`
       )
-      const overwrite = getOptionValueForFile(options, inputPath, data, options.overwrite ?? false)
-      const exists = await pathExists(outputPath)
 
       await createDirIfNotExists(path.dirname(outputPath), options)
 
       log(options, LogLevel.Info, `Writing to ${outputPath}`)
-      if (!exists || overwrite) {
-        if (exists && overwrite) {
-          log(options, LogLevel.Info, `File ${outputPath} exists, overwriting`)
-        }
-        const templateBuffer = await readFile(inputPath)
-        const outputContents = handlebarsParse(options, templateBuffer, data)
-
-        if (!options.dryRun) {
-          await writeFile(outputPath, outputContents)
-          log(options, LogLevel.Info, "Done.")
-        } else {
-          log(options, LogLevel.Info, "Content output:")
-          log(options, LogLevel.Info, outputContents)
-        }
-      } else if (exists) {
-        log(options, LogLevel.Info, `File ${outputPath} already exists, skipping`)
-      }
+      await copyFileTransformed(options, data, { exists, overwrite, outputPath, inputPath })
       resolve()
     } catch (e: any) {
       handleErr(e)

src/types.ts

@@ -10,6 +10,20 @@ export type FileResponseFn<T> = (fullPath: string, basedir: string, basename: st
 
 export type FileResponse<T> = T | FileResponseFn<T>
 
+export type DefaultHelperKeys =
+  | "camelCase"
+  | "snakeCase"
+  | "startCase"
+  | "kebabCase"
+  | "hyphenCase"
+  | "pascalCase"
+  | "lowerCase"
+  | "upperCase"
+
+export type HelperKeys<T> = DefaultHelperKeys | T
+
+export type Helper = (text: string) => string
+
 export interface ScaffoldConfig {
   /**
    * Name to be passed to the generated files. `{{name}}` and `{{Name}}` inside contents and file names will be replaced
@@ -79,8 +93,26 @@ export interface ScaffoldConfig {
    *   }
    * })
    * ```
+   *
+   * Here are the built-in helpers available for use:
+   * | Helper name | Example code            | Example output |
+   * | ----------- | ----------------------- | -------------- |
+   * | camelCase   | `{{ camelCase name }}`  | myName         |
+   * | snakeCase   | `{{ snakeCase name }}`  | my_name        |
+   * | startCase   | `{{ startCase name }}`  | My Name        |
+   * | kebabCase   | `{{ kebabCase name }}`  | my-name        |
+   * | hyphenCase  | `{{ hyphenCase name }}` | my-name        |
+   * | pascalCase  | `{{ pascalCase name }}` | MyName         |
+   * | upperCase   | `{{ upperCase name }}`  | MYNAME         |
+   * | lowerCase   | `{{ lowerCase name }}`  | myname         |
    */
-  helpers?: Record<string, (text: string) => string>
+  helpers?: Record<string, Helper>
+
+  /**
+   * Default transformer to apply to subfolder name when using `createSubFolder: true`. Can be one of the default
+   * helpers, or a custom one you provide to `helpers`. Defaults to `undefined`, which means no transformation is done.
+   */
+  subFolderNameHelper?: DefaultHelperKeys | string
 }
 export interface ScaffoldCmdConfig {
   name: string

src/utils.ts

@@ -1,6 +1,6 @@
 import path from "path"
 import { F_OK } from "constants"
-import { FileResponse, FileResponseFn, LogLevel, ScaffoldConfig } from "./types"
+import { DefaultHelperKeys, FileResponse, FileResponseFn, Helper, LogLevel, ScaffoldConfig } from "./types"
 import camelCase from "lodash/camelCase"
 import snakeCase from "lodash/snakeCase"
 import kebabCase from "lodash/kebabCase"
@@ -10,7 +10,11 @@ import { promises as fsPromises } from "fs"
 import chalk from "chalk"
 const { stat, access, mkdir } = fsPromises
 
-export const defaultHelpers: Exclude<ScaffoldConfig["helpers"], undefined> = {
+import { glob } from "glob"
+import { promisify } from "util"
+const { readFile, writeFile } = fsPromises
+
+export const defaultHelpers: Record<DefaultHelperKeys, Helper> = {
   camelCase,
   snakeCase,
   startCase,
@@ -34,7 +38,7 @@ export function handleErr(err: NodeJS.ErrnoException | null) {
 }
 
 export function log(options: ScaffoldConfig, level: LogLevel, ...obj: any[]) {
-  if (options.quiet || options.verbose === LogLevel.None || level <= (options.verbose ?? LogLevel.Info)) {
+  if (options.quiet || options.verbose === LogLevel.None || level < (options.verbose ?? LogLevel.Info)) {
     return
   }
   const levelColor: Record<LogLevel, keyof typeof chalk> = {
@@ -91,19 +95,27 @@ export function getOptionValueForFile<T>(
   }
   return (fn as FileResponseFn<T>)(
     filePath,
-    path.dirname(handlebarsParse(options, filePath, data).toString()),
-    path.basename(handlebarsParse(options, filePath, data).toString())
+    path.dirname(handlebarsParse(options, filePath, { isPath: true }).toString()),
+    path.basename(handlebarsParse(options, filePath, { isPath: true }).toString())
   )
 }
 
 export function handlebarsParse(
   options: ScaffoldConfig,
   templateBuffer: Buffer | string,
-  data: Record<string, string>
+  { isPath = false }: { isPath?: boolean } = {}
 ) {
+  const { data } = options
   try {
-    const parser = Handlebars.compile(templateBuffer.toString(), { noEscape: true })
-    const outputContents = parser(data)
+    let str = templateBuffer.toString()
+    if (isPath) {
+      str = str.replace(/\\/g, "/")
+    }
+    const parser = Handlebars.compile(str, { noEscape: true })
+    let outputContents = parser(data)
+    if (isPath && path.sep !== "/") {
+      outputContents = outputContents.replace(/\//g, "\\")
+    }
     return outputContents
   } catch {
     log(options, LogLevel.Warning, "Couldn't parse file with handlebars, returning original content")
@@ -133,9 +145,187 @@ export async function isDir(path: string): Promise<boolean> {
 }
 
 export function removeGlob(template: string) {
-  return template.replace(/\*/g, "").replace(/\/\//g, "/")
+  return template.replace(/\*/g, "").replace(/(\/\/|\\\\)/g, path.sep)
 }
 
 export function makeRelativePath(str: string): string {
-  return str.startsWith("/") ? str.slice(1) : str
+  return str.startsWith(path.sep) ? str.slice(1) : str
+}
+
+export function getBasePath(relPath: string) {
+  return path
+    .resolve(process.cwd(), relPath)
+    .replace(process.cwd() + path.sep, "")
+    .replace(process.cwd(), "")
+}
+
+export async function getFileList(options: ScaffoldConfig, template: string) {
+  return (
+    await promisify(glob)(template, {
+      dot: true,
+      debug: options.verbose === LogLevel.Debug,
+      nodir: true,
+    })
+  ).map((f) => f.replace(/\//g, path.sep))
+}
+
+export interface GlobInfo {
+  nonGlobTemplate: string
+  origTemplate: string
+  isDirOrGlob: boolean
+  isGlob: boolean
+  template: string
+}
+
+export async function getTemplateGlobInfo(options: ScaffoldConfig, template: string): Promise<GlobInfo> {
+  const isGlob = glob.hasMagic(template)
+  log(options, LogLevel.Debug, "before isDir", "isGlob:", isGlob, template)
+  let _template = template
+  const nonGlobTemplate = isGlob ? removeGlob(template) : template
+  const isDirOrGlob = isGlob ? true : await isDir(template)
+  log(options, LogLevel.Debug, "after isDir", isDirOrGlob)
+  const _shouldAddGlob = !isGlob && isDirOrGlob
+  const origTemplate = template
+  if (_shouldAddGlob) {
+    _template = path.join(template, "**", "*")
+  }
+  return { nonGlobTemplate, origTemplate, isDirOrGlob, isGlob, template: _template }
+}
+
+export async function ensureFileExists(template: string, isGlob: boolean) {
+  if (!isGlob && !(await pathExists(template))) {
+    const err: NodeJS.ErrnoException = new Error(`ENOENT, no such file or directory ${template}`)
+    err.code = "ENOENT"
+    err.path = template
+    err.errno = -2
+    throw err
+  }
+}
+
+export interface OutputFileInfo {
+  inputPath: string
+  outputPathOpt: string
+  outputDir: string
+  outputPath: string
+  exists: boolean
+}
+
+export async function getTemplateFileInfo(
+  options: ScaffoldConfig,
+  data: Record<string, string>,
+  { templatePath, basePath }: { templatePath: string; basePath: string }
+): Promise<OutputFileInfo> {
+  const inputPath = path.resolve(process.cwd(), templatePath)
+  const outputPathOpt = getOptionValueForFile(options, inputPath, data, options.output)
+  const outputDir = getOutputDir(options, data, outputPathOpt, basePath)
+  const outputPath = handlebarsParse(options, path.join(outputDir, path.basename(inputPath)), {
+    isPath: true,
+  }).toString()
+  const exists = await pathExists(outputPath)
+  return { inputPath, outputPathOpt, outputDir, outputPath, exists }
+}
+
+export async function copyFileTransformed(
+  options: ScaffoldConfig,
+  data: Record<string, string>,
+  {
+    exists,
+    overwrite,
+    outputPath,
+    inputPath,
+  }: { exists: boolean; overwrite: boolean; outputPath: string; inputPath: string }
+) {
+  if (!exists || overwrite) {
+    if (exists && overwrite) {
+      log(options, LogLevel.Info, `File ${outputPath} exists, overwriting`)
+    }
+    const templateBuffer = await readFile(inputPath)
+    const outputContents = handlebarsParse(options, templateBuffer)
+
+    if (!options.dryRun) {
+      await writeFile(outputPath, outputContents)
+      log(options, LogLevel.Info, "Done.")
+    } else {
+      log(options, LogLevel.Info, "Content output:")
+      log(options, LogLevel.Info, outputContents)
+    }
+  } else if (exists) {
+    log(options, LogLevel.Info, `File ${outputPath} already exists, skipping`)
+  }
+}
+
+export function getOutputDir(
+  options: ScaffoldConfig,
+  data: Record<string, string>,
+  outputPathOpt: string,
+  basePath: string
+) {
+  return path.resolve(
+    process.cwd(),
+    ...([
+      outputPathOpt,
+      basePath,
+      options.createSubFolder
+        ? options.subFolderNameHelper
+          ? handlebarsParse(options, `{{ ${options.subFolderNameHelper} name }}`)
+          : options.name
+        : undefined,
+    ].filter(Boolean) as string[])
+  )
+}
+
+export function logInputFile(
+  options: ScaffoldConfig,
+  {
+    origTemplate,
+    relPath,
+    template,
+    inputFilePath,
+    nonGlobTemplate,
+    basePath,
+    isDirOrGlob,
+    isGlob,
+  }: {
+    origTemplate: string
+    relPath: string
+    template: string
+    inputFilePath: string
+    nonGlobTemplate: string
+    basePath: string
+    isDirOrGlob: boolean
+    isGlob: boolean
+  }
+) {
+  log(
+    options,
+    LogLevel.Debug,
+    `\nprocess.cwd(): ${process.cwd()}`,
+    `\norigTemplate: ${origTemplate}`,
+    `\nrelPath: ${relPath}`,
+    `\ntemplate: ${template}`,
+    `\ninputFilePath: ${inputFilePath}`,
+    `\nnonGlobTemplate: ${nonGlobTemplate}`,
+    `\nbasePath: ${basePath}`,
+    `\nisDirOrGlob: ${isDirOrGlob}`,
+    `\nisGlob: ${isGlob}`,
+    `\n`
+  )
+}
+
+export function logInitStep(options: ScaffoldConfig) {
+  log(options, LogLevel.Debug, "Full config:", {
+    name: options.name,
+    templates: options.templates,
+    output: options.output,
+    createSubfolder: options.createSubFolder,
+    data: options.data,
+    overwrite: options.overwrite,
+    quiet: options.quiet,
+    subFolderTransformHelper: options.subFolderNameHelper,
+    helpers: Object.keys(options.helpers ?? {}),
+    verbose: `${options.verbose} (${Object.keys(LogLevel).find(
+      (k) => (LogLevel[k as any] as unknown as number) === options.verbose!
+    )})`,
+  })
+  log(options, LogLevel.Info, "Data:", options.data)
 }

tests/scaffold.test.ts

@@ -4,6 +4,7 @@ import Scaffold from "../src/scaffold"
 import { readdirSync, readFileSync } from "fs"
 import { Console } from "console"
 import { defaultHelpers } from "../src/utils"
+import { join } from "path"
 
 const fileStructNormal = {
   input: {
@@ -31,6 +32,12 @@ const fileStructNested = {
   },
   output: {},
 }
+const fileStructSubdirTransformer = {
+  input: {
+    "{{name}}.txt": "Hello, my app is {{name}}",
+  },
+  output: {},
+}
 
 const defaultHelperNames = Object.keys(defaultHelpers)
 const fileStructHelpers = {
@@ -77,7 +84,7 @@ describe("Scaffold", () => {
           templates: ["input"],
           verbose: 0,
         })
-        const data = readFileSync(process.cwd() + "/output/app_name.txt")
+        const data = readFileSync(join(process.cwd(), "output", "app_name.txt"))
         expect(data.toString()).toBe("Hello, my app is app_name")
       })
 
@@ -90,7 +97,7 @@ describe("Scaffold", () => {
           verbose: 0,
         })
 
-        const data = readFileSync(process.cwd() + "/output/app_name/app_name.txt")
+        const data = readFileSync(join(process.cwd(), "output", "app_name", "app_name.txt"))
         expect(data.toString()).toBe("Hello, my app is app_name")
       })
     })
@@ -116,7 +123,7 @@ describe("Scaffold", () => {
           verbose: 0,
         })
 
-        const data = readFileSync(process.cwd() + "/output/app_name.txt")
+        const data = readFileSync(join(process.cwd(), "output", "app_name.txt"))
         expect(data.toString()).toBe("Hello, my value is 1")
       })
 
@@ -138,7 +145,7 @@ describe("Scaffold", () => {
           verbose: 0,
         })
 
-        const data = readFileSync(process.cwd() + "/output/app_name.txt")
+        const data = readFileSync(join(process.cwd(), "output", "app_name.txt"))
         expect(data.toString()).toBe("Hello, my value is 2")
       })
     })
@@ -167,7 +174,7 @@ describe("Scaffold", () => {
           })
         ).rejects.toThrow()
 
-        expect(() => readFileSync(process.cwd() + "/output/app_name.txt")).toThrow()
+        expect(() => readFileSync(join(process.cwd(), "output", "app_name.txt"))).toThrow()
       })
     })
   )
@@ -178,12 +185,12 @@ describe("Scaffold", () => {
       test("should allow override function", async () => {
         await Scaffold({
           name: "app_name",
-          output: (fullPath, basedir, basename) => `custom-output/${basename.split(".")[0]}`,
+          output: (fullPath, basedir, basename) => join("custom-output", `${basename.split(".")[0]}`),
           templates: ["input"],
           data: { value: "1" },
           verbose: 0,
         })
-        const data = readFileSync(process.cwd() + "/custom-output/app_name/app_name.txt")
+        const data = readFileSync(join(process.cwd(), "/custom-output/app_name/app_name.txt"))
         expect(data.toString()).toBe("Hello, my app is app_name")
       })
     })
@@ -201,16 +208,16 @@ describe("Scaffold", () => {
           verbose: 0,
         })
 
-        const rootDir = readdirSync(process.cwd() + "/output")
-        const dir = readdirSync(process.cwd() + "/output/AppName")
-        const nestedDir = readdirSync(process.cwd() + "/output/AppName/moreNesting")
+        const rootDir = readdirSync(join(process.cwd(), "output"))
+        const dir = readdirSync(join(process.cwd(), "output", "AppName"))
+        const nestedDir = readdirSync(join(process.cwd(), "output", "AppName", "moreNesting"))
         expect(rootDir).toHaveProperty("length")
         expect(dir).toHaveProperty("length")
         expect(nestedDir).toHaveProperty("length")
 
-        const rootFile = readFileSync(process.cwd() + "/output/app_name-1.txt")
-        const oneDeepFile = readFileSync(process.cwd() + "/output/AppName/app_name-2.txt")
-        const twoDeepFile = readFileSync(process.cwd() + "/output/AppName/moreNesting/app_name-3.txt")
+        const rootFile = readFileSync(join(process.cwd(), "output", "app_name-1.txt"))
+        const oneDeepFile = readFileSync(join(process.cwd(), "output", "AppName/app_name-2.txt"))
+        const twoDeepFile = readFileSync(join(process.cwd(), "output", "AppName/moreNesting/app_name-3.txt"))
         expect(rootFile.toString()).toEqual("This should be in root")
         expect(oneDeepFile.toString()).toEqual("Hello, my value is 1")
         expect(twoDeepFile.toString()).toEqual("Hi! My value is actually NOT 1!")
@@ -246,7 +253,7 @@ describe("Scaffold", () => {
             upperCase: "APP_NAME",
           }
           for (const key in results) {
-            const file = readFileSync(process.cwd() + `/output/defaults/${key}.txt`)
+            const file = readFileSync(join(process.cwd(), "output", "defaults", `${key}.txt`))
             expect(file.toString()).toEqual(results[key as keyof typeof results])
           }
         })
@@ -265,11 +272,59 @@ describe("Scaffold", () => {
             add1: "app_name 1",
           }
           for (const key in results) {
-            const file = readFileSync(process.cwd() + `/output/custom/${key}.txt`)
+            const file = readFileSync(join(process.cwd(), "output", "custom", `${key}.txt`))
             expect(file.toString()).toEqual(results[key as keyof typeof results])
           }
         })
       })
     })
   )
+  describe(
+    "transform subfolder",
+    withMock(fileStructSubdirTransformer, () => {
+      test("should work with no helper", async () => {
+        await Scaffold({
+          name: "app_name",
+          output: "output",
+          templates: ["input"],
+          createSubFolder: true,
+          verbose: 0,
+        })
+
+        const data = readFileSync(join(process.cwd(), "output", "app_name/app_name.txt"))
+        expect(data.toString()).toBe("Hello, my app is app_name")
+      })
+
+      test("should work with default helper", async () => {
+        await Scaffold({
+          name: "app_name",
+          output: "output",
+          templates: ["input"],
+          createSubFolder: true,
+          verbose: 0,
+          subFolderNameHelper: "upperCase",
+        })
+
+        const data = readFileSync(join(process.cwd(), "output", "APP_NAME/app_name.txt"))
+        expect(data.toString()).toBe("Hello, my app is app_name")
+      })
+
+      test("should work with custom helper", async () => {
+        await Scaffold({
+          name: "app_name",
+          output: "output",
+          templates: ["input"],
+          createSubFolder: true,
+          verbose: 0,
+          subFolderNameHelper: "test",
+          helpers: {
+            test: () => "REPLACED",
+          },
+        })
+
+        const data = readFileSync(join(process.cwd(), "output", "REPLACED/app_name.txt"))
+        expect(data.toString()).toBe("Hello, my app is app_name")
+      })
+    })
+  )
 })

tests/utils.test.ts

@@ -0,0 +1,54 @@
+import { handlebarsParse } from "../src/utils"
+import { ScaffoldConfig } from "../src/types"
+import path from "path"
+
+const blankConf: ScaffoldConfig = {
+  verbose: 0,
+  name: "",
+  output: "",
+  templates: [],
+  data: { name: "test" },
+}
+
+describe("Utils", () => {
+  describe("handlebarsParse", () => {
+    let origSep: any
+    describe("windows paths", () => {
+      beforeAll(() => {
+        origSep = path.sep
+        Object.defineProperty(path, "sep", { value: "\\" })
+      })
+      afterAll(() => {
+        Object.defineProperty(path, "sep", { value: origSep })
+      })
+      test("should work for windows paths", async () => {
+        expect(handlebarsParse(blankConf, "C:\\exports\\{{name}}.txt", { isPath: true })).toEqual(
+          "C:\\exports\\test.txt"
+        )
+      })
+    })
+    describe("non-windows paths", () => {
+      beforeAll(() => {
+        origSep = path.sep
+        Object.defineProperty(path, "sep", { value: "/" })
+      })
+      afterAll(() => {
+        Object.defineProperty(path, "sep", { value: origSep })
+      })
+      test("should work for non-windows paths", async () => {
+        expect(handlebarsParse(blankConf, "/home/test/{{name}}.txt", { isPath: true })).toEqual("/home/test/test.txt")
+      })
+    })
+    test("should not do path escaping on non-path compiles", async () => {
+      expect(
+        handlebarsParse(
+          { ...blankConf, data: { ...blankConf.data, escaped: "value" } },
+          "/home/test/{{name}} \\{{escaped}}.txt",
+          {
+            isPath: false,
+          }
+        )
+      ).toEqual("/home/test/test {{escaped}}.txt")
+    })
+  })
+})

yarn.lock

@@ -759,16 +759,6 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
-args@^5.0.1:
-  version "5.0.1"
-  resolved "https://registry.yarnpkg.com/args/-/args-5.0.1.tgz#4bf298df90a4799a09521362c579278cc2fdd761"
-  integrity sha512-1kqmFCFsPffavQFGt8OxJdIcETti99kySRUPMpOhaGjL6mRJn8HFU1OxKY5bMqfZKUwTQc1mZkAjmGYaVOHFtQ==
-  dependencies:
-    camelcase "5.0.0"
-    chalk "2.4.2"
-    leven "2.1.0"
-    mri "1.1.4"
-
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -903,11 +893,6 @@ callsites@^3.0.0:
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-3.1.0.tgz#b3630abd8943432f54b3f0519238e33cd7df2f73"
   integrity sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==
 
-camelcase@5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.0.0.tgz#03295527d58bd3cd4aa75363f35b2e8d97be2f42"
-  integrity sha512-faqwZqnWxbxn+F1d399ygeamQNy3lPp/H9H6rNrqYh4FSVCtcY+3cub1MxA8o9mDd55mM8Aghuu/kuyYA6VTsA==
-
 camelcase@^5.3.1:
   version "5.3.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
@@ -923,7 +908,7 @@ caniuse-lite@^1.0.30001219:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001245.tgz#45b941bbd833cb0fa53861ff2bae746b3c6ca5d4"
   integrity sha512-768fM9j1PKXpOCKws6eTo3RHmvTUsG9UrpT4WoREFeZgJBTi4/X9g565azS/rVUGtqb8nt7FjLeF5u4kukERnA==
 
-chalk@2.4.2, chalk@^2.0.0:
+chalk@^2.0.0:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
   integrity sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==
@@ -2105,11 +2090,6 @@ kleur@^3.0.3:
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-3.0.3.tgz#a79c9ecc86ee1ce3fa6206d1216c501f147fc07e"
   integrity sha512-eTIzlVOSUR+JxdDFepEYcBMtZ9Qqdef+rnzWdRZuMbOywu5tO2w2N7rqjoANZ5k9vywhL6Br1VRjUIgTQx4E8w==
 
-leven@2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
-  integrity sha1-wuep93IJTe6dNCAq6KzORoeHVYA=
-
 leven@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/leven/-/leven-3.1.0.tgz#77891de834064cccba82ae7842bb6b14a13ed7f2"
@@ -2221,11 +2201,6 @@ mock-fs@^5.0.0:
   resolved "https://registry.yarnpkg.com/mock-fs/-/mock-fs-5.0.0.tgz#5574520ac824c01a10091bf951c66f677c71acaa"
   integrity sha512-A5mm/SpSDwwc/klSaEvvKMGQQtiGiQy8UcDAd/vpVO1fV+4zaHjt39yKgCSErFzv2zYxZIUx9Ud/7ybeHBf8Fg==
 
-mri@1.1.4:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/mri/-/mri-1.1.4.tgz#7cb1dd1b9b40905f1fac053abe25b6720f44744a"
-  integrity sha512-6y7IjGPm8AzlvoUrwAaw1tLnUBudaS3752vcd8JtrpGGQn+rXIe63LFVHm/YMwtqAuh+LJPCFdlLYPWM1nYn6w==
-
 ms@2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"