Only mport used lodash methods (#923)

* perf: only import used lodash methods

* fix: add missing import

packages/core/index.js

@@ -1,4 +1,7 @@
-const _ = require('lodash');
+const _ = {
+  isFunction: require('lodash/isFunction'),
+  noop: require('lodash/noop')
+};
 const readline = require('readline');
 const chalk = require('chalk');
 const MuteStream = require('mute-stream');

packages/core/lib/Paginator.js

@@ -1,6 +1,8 @@
 'use strict';
 
-const _ = require('lodash');
+const _ = {
+  flatten: require('lodash/flatten')
+};
 const chalk = require('chalk');
 const cliWidth = require('cli-width');
 const { breakLines } = require('./utils');

packages/core/lib/screen-manager.js

@@ -1,4 +1,6 @@
-const _ = require('lodash');
+const _ = {
+  last: require('lodash/last')
+};
 const cliWidth = require('cli-width');
 const stripAnsi = require('strip-ansi');
 const stringWidth = require('string-width');

packages/core/lib/utils.js

@@ -1,4 +1,6 @@
-const _ = require('lodash');
+const _ = {
+  flatten: require('lodash/flatten')
+};
 
 /**
  * Force line returns at specific width. This function is ANSI code friendly and it'll

packages/inquirer/lib/objects/choice.js

@@ -1,5 +1,10 @@
 'use strict';
-var _ = require('lodash');
+var _ = {
+  isString: require('lodash/isString'),
+  isNumber: require('lodash/isNumber'),
+  extend: require('lodash/extend'),
+  isFunction: require('lodash/isFunction')
+};
 
 /**
  * Choice object

packages/inquirer/lib/objects/choices.js

@@ -1,6 +1,11 @@
 'use strict';
 var assert = require('assert');
-var _ = require('lodash');
+var _ = {
+  isNumber: require('lodash/isNumber'),
+  filter: require('lodash/filter'),
+  map: require('lodash/map'),
+  find: require('lodash/find')
+};
 var Separator = require('./separator');
 var Choice = require('./choice');
 

packages/inquirer/lib/prompts/base.js

@@ -3,8 +3,11 @@
  * Base prompt implementation
  * Should be extended by prompt types.
  */
-
-var _ = require('lodash');
+var _ = {
+  assign: require('lodash/assign'),
+  defaults: require('lodash/defaults'),
+  clone: require('lodash/clone')
+};
 var chalk = require('chalk');
 var runAsync = require('run-async');
 var { filter, flatMap, share, take, takeUntil } = require('rxjs/operators');

packages/inquirer/lib/prompts/checkbox.js

@@ -3,7 +3,11 @@
  * `list` type prompt
  */
 
-var _ = require('lodash');
+var _ = {
+  isArray: require('lodash/isArray'),
+  map: require('lodash/map'),
+  isString: require('lodash/isString')
+};
 var chalk = require('chalk');
 var cliCursor = require('cli-cursor');
 var figures = require('figures');

packages/inquirer/lib/prompts/confirm.js

@@ -3,7 +3,10 @@
  * `confirm` type prompt
  */
 
-var _ = require('lodash');
+var _ = {
+  extend: require('lodash/extend'),
+  isBoolean: require('lodash/isBoolean')
+};
 var chalk = require('chalk');
 var { take, takeUntil } = require('rxjs/operators');
 var Base = require('./base');

packages/inquirer/lib/prompts/expand.js

@@ -3,7 +3,12 @@
  * `rawlist` type prompt
  */
 
-var _ = require('lodash');
+var _ = {
+  uniq: require('lodash/uniq'),
+  isString: require('lodash/isString'),
+  isNumber: require('lodash/isNumber'),
+  findIndex: require('lodash/findIndex')
+};
 var chalk = require('chalk');
 var { map, takeUntil } = require('rxjs/operators');
 var Base = require('./base');

packages/inquirer/lib/prompts/list.js

@@ -3,7 +3,11 @@
  * `list` type prompt
  */
 
-var _ = require('lodash');
+var _ = {
+  isNumber: require('lodash/isNumber'),
+  findIndex: require('lodash/findIndex'),
+  isString: require('lodash/isString')
+};
 var chalk = require('chalk');
 var figures = require('figures');
 var cliCursor = require('cli-cursor');

packages/inquirer/lib/prompts/rawlist.js

@@ -3,7 +3,11 @@
  * `rawlist` type prompt
  */
 
-var _ = require('lodash');
+var _ = {
+  extend: require('lodash/extend'),
+  isNumber: require('lodash/isNumber'),
+  findIndex: require('lodash/findIndex')
+};
 var chalk = require('chalk');
 var { map, takeUntil } = require('rxjs/operators');
 var Base = require('./base');

packages/inquirer/lib/ui/baseUI.js

@@ -1,5 +1,8 @@
 'use strict';
-var _ = require('lodash');
+var _ = {
+  extend: require('lodash/extend'),
+  omit: require('lodash/omit')
+};
 var MuteStream = require('mute-stream');
 var readline = require('readline');
 

packages/inquirer/lib/ui/bottom-bar.js

@@ -6,7 +6,9 @@
 var through = require('through');
 var Base = require('./baseUI');
 var rlUtils = require('../utils/readline');
-var _ = require('lodash');
+var _ = {
+  last: require('lodash/last')
+};
 
 class BottomBar extends Base {
   constructor(opt) {

packages/inquirer/lib/ui/prompt.js

@@ -1,5 +1,11 @@
 'use strict';
-var _ = require('lodash');
+var _ = {
+  isPlainObject: require('lodash/isPlainObject'),
+  clone: require('lodash/clone'),
+  isArray: require('lodash/isArray'),
+  set: require('lodash/set'),
+  isFunction: require('lodash/isFunction')
+};
 var { defer, empty, from, of } = require('rxjs');
 var { concatMap, filter, publish, reduce } = require('rxjs/operators');
 var runAsync = require('run-async');

packages/inquirer/lib/utils/paginator.js

@@ -1,6 +1,9 @@
 'use strict';
 
-var _ = require('lodash');
+var _ = {
+  sum: require('lodash/sum'),
+  flatten: require('lodash/flatten')
+};
 var chalk = require('chalk');
 
 /**

packages/inquirer/lib/utils/screen-manager.js

@@ -1,5 +1,8 @@
 'use strict';
-var _ = require('lodash');
+var _ = {
+  last: require('lodash/last'),
+  flatten: require('lodash/flatten')
+};
 var util = require('./readline');
 var cliWidth = require('cli-width');
 var stripAnsi = require('strip-ansi');

packages/inquirer/lib/utils/utils.js

@@ -1,5 +1,7 @@
 'use strict';
-var _ = require('lodash');
+var _ = {
+  isFunction: require('lodash/isFunction')
+};
 var { from, of } = require('rxjs');
 var runAsync = require('run-async');