feat: added debug mode

Author: jdx

src/config.ts

@@ -1,11 +1,24 @@
+// tslint:disable no-console
+
 import {Logger} from './logger'
 
 const g = global.anycli = global.anycli || {}
 
+function displayWarnings() {
+  if (process.listenerCount('warning') > 1) return
+  process.on('warning', (warning: any) => {
+    console.error(warning.stack)
+    if (warning.detail) console.error(warning.detail)
+  })
+}
+
 export const config = {
   errorLogger: undefined as Logger | undefined,
-  get debug(): string | undefined { return g.errlog },
-  set debug(errlog: string | undefined) { g.errlog = errlog },
+  get debug(): boolean { return !!g.debug },
+  set debug(enabled: boolean) {
+    g.debug = enabled
+    if (enabled) displayWarnings()
+  },
   get errlog(): string | undefined { return g.errlog },
   set errlog(errlog: string | undefined) {
     g.errlog = errlog

src/errors/cli.ts

@@ -1,9 +1,12 @@
 // tslint:disable no-implicit-dependencies
 
 import Chalk from 'chalk'
+import Clean = require('clean-stack')
 import Indent = require('indent-string')
 import * as Wrap from 'wrap-ansi'
 
+import {config} from '../config'
+
 export class CLIError extends Error {
   anycli: any
   code?: string
@@ -20,7 +23,15 @@ export class CLIError extends Error {
     this.code = options.code
   }
 
+  get stack(): string {
+    const clean: typeof Clean = require('clean-stack')
+    return clean(super.stack!, {pretty: true})
+  }
+
   render(): string {
+    if (config.debug) {
+      return this.stack
+    }
     let wrap: typeof Wrap = require('wrap-ansi')
     let indent: typeof Indent = require('indent-string')
 

src/global.d.ts

@@ -3,6 +3,7 @@
 declare namespace NodeJS {
   interface Global {
     anycli?: {
+      debug?: boolean
       errlog?: string
     }
   }

src/index.ts

@@ -1,6 +1,5 @@
 // tslint:disable no-console
 
-import Clean = require('clean-stack')
 export {handle} from './handle'
 export {ExitError} from './errors/exit'
 export {CLIError} from './errors/cli'
@@ -22,7 +21,5 @@ export function error(err: string | Error, options: {code?: string, exit?: numbe
 export function warn(input: string | Error) {
   let err = new CLIError.Warn(input)
   console.error(err.render())
-  const clean: typeof Clean = require('clean-stack')
-  let stack = clean(err.stack!, {pretty: true})
-  if (config.errorLogger) config.errorLogger.log(stack)
+  if (config.errorLogger) config.errorLogger.log(err.stack)
 }