source: trip-planner-front/node_modules/copy-webpack-plugin/README.md@ 6c1585f

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1<div align="center">
2 <a href="https://github.com/webpack/webpack">
3 <img width="200" height="200"
4 src="https://webpack.js.org/assets/icon-square-big.svg">
5 </a>
6</div>
7
8[![npm][npm]][npm-url]
9[![node][node]][node-url]
10[![deps][deps]][deps-url]
11[![tests][tests]][tests-url]
12[![cover][cover]][cover-url]
13[![chat][chat]][chat-url]
14[![size][size]][size-url]
15
16# copy-webpack-plugin
17
18Copies individual files or entire directories, which already exist, to the build directory.
19
20## Getting Started
21
22To begin, you'll need to install `copy-webpack-plugin`:
23
24```console
25npm install copy-webpack-plugin --save-dev
26```
27
28Then add the plugin to your `webpack` config. For example:
29
30**webpack.config.js**
31
32```js
33const CopyPlugin = require("copy-webpack-plugin");
34
35module.exports = {
36 plugins: [
37 new CopyPlugin({
38 patterns: [
39 { from: "source", to: "dest" },
40 { from: "other", to: "public" },
41 ],
42 }),
43 ],
44};
45```
46
47> ℹ️ `copy-webpack-plugin` is not designed to copy files generated from the build process; rather, it is to copy files that already exist in the source tree, as part of the build process.
48
49> ℹ️ If you want `webpack-dev-server` to write files to the output directory during development, you can force it with the [`writeToDisk`](https://github.com/webpack/webpack-dev-middleware#writetodisk) option or the [`write-file-webpack-plugin`](https://github.com/gajus/write-file-webpack-plugin).
50
51> ℹ️ You can get the original source filename from [Asset Objects](https://webpack.js.org/api/stats/#asset-objects).
52
53## Options
54
55The plugin's signature:
56
57**webpack.config.js**
58
59```js
60const CopyPlugin = require("copy-webpack-plugin");
61
62module.exports = {
63 plugins: [
64 new CopyPlugin({
65 patterns: [
66 { from: "source", to: "dest" },
67 { from: "other", to: "public" },
68 ],
69 options: {
70 concurrency: 100,
71 },
72 }),
73 ],
74};
75```
76
77### Patterns
78
79| Name | Type | Default | Description |
80| :-------------------------------------: | :------------------: | :---------------------------------------------: | :----------------------------------------------------------------------------------------------------------------------------------------------------- |
81| [`from`](#from) | `{String}` | `undefined` | Glob or path from where we copy files. |
82| [`to`](#to) | `{String\|Function}` | `compiler.options.output` | Output path. |
83| [`context`](#context) | `{String}` | `options.context \|\| compiler.options.context` | A path that determines how to interpret the `from` path. |
84| [`globOptions`](#globoptions) | `{Object}` | `undefined` | [Options][glob-options] passed to the glob pattern matching library including `ignore` option. |
85| [`filter`](#filter) | `{Function}` | `undefined` | Allows to filter copied assets. |
86| [`toType`](#totype) | `{String}` | `undefined` | Determinate what is `to` option - directory, file or template. |
87| [`force`](#force) | `{Boolean}` | `false` | Overwrites files already in `compilation.assets` (usually added by other plugins/loaders). |
88| [`priority`](#priority) | `{Number}` | `0` | Allows you to specify the copy priority. |
89| [`transform`](#transform) | `{Object}` | `undefined` | Allows to modify the file contents. Enable `transform` caching. You can use `{ transform: {cache: { key: 'my-cache-key' }} }` to invalidate the cache. |
90| [`transformAll`](#transformAll) | `{Function}` | `undefined` | Allows you to modify the contents of multiple files and save the result to one file. |
91| [`noErrorOnMissing`](#noerroronmissing) | `{Boolean}` | `false` | Doesn't generate an error on missing file(s). |
92| [`info`](#info) | `{Object\|Function}` | `undefined` | Allows to add assets info. |
93
94#### `from`
95
96Type: `String`
97Default: `undefined`
98
99Glob or path from where we copy files.
100Globs accept [fast-glob pattern-syntax](https://github.com/mrmlnc/fast-glob#pattern-syntax).
101Glob can only be a `string`.
102
103> ⚠️ Don't use directly `\\` in `from` option if it is a `glob` (i.e `path\to\file.ext`) option because on UNIX the backslash is a valid character inside a path component, i.e., it's not a separator.
104> On Windows, the forward slash and the backward slash are both separators.
105> Instead please use `/`.
106
107**webpack.config.js**
108
109```js
110module.exports = {
111 plugins: [
112 new CopyPlugin({
113 patterns: [
114 "relative/path/to/file.ext",
115 "relative/path/to/dir",
116 path.resolve(__dirname, "src", "file.ext"),
117 path.resolve(__dirname, "src", "dir"),
118 "**/*",
119 {
120 from: "**/*",
121 },
122 // If absolute path is a `glob` we replace backslashes with forward slashes, because only forward slashes can be used in the `glob`
123 path.posix.join(
124 path.resolve(__dirname, "src").replace(/\\/g, "/"),
125 "*.txt"
126 ),
127 ],
128 }),
129 ],
130};
131```
132
133##### `For windows`
134
135If you define `from` as absolute file path or absolute folder path on `Windows`, you can use windows path segment (`\\`)
136
137```js
138module.exports = {
139 plugins: [
140 new CopyPlugin({
141 patterns: [
142 {
143 from: path.resolve(__dirname, "file.txt"),
144 },
145 ],
146 }),
147 ],
148};
149```
150
151But you should always use forward-slashes in `glob` expressions
152See [fast-glob manual](https://github.com/mrmlnc/fast-glob#how-to-write-patterns-on-windows).
153
154```js
155module.exports = {
156 plugins: [
157 new CopyPlugin({
158 patterns: [
159 {
160 // If absolute path is a `glob` we replace backslashes with forward slashes, because only forward slashes can be used in the `glob`
161 from: path.posix.join(
162 path.resolve(__dirname, "fixtures").replace(/\\/g, "/"),
163 "*.txt"
164 ),
165 },
166 ],
167 }),
168 ],
169};
170```
171
172The `context` behaves differently depending on what the `from` is (`glob`, `file` or `dir`).
173More [`examples`](#examples)
174
175#### `to`
176
177Type: `String|Function`
178Default: `compiler.options.output`
179
180##### String
181
182Output path.
183
184> ⚠️ Don't use directly `\\` in `to` (i.e `path\to\dest`) option because on UNIX the backslash is a valid character inside a path component, i.e., it's not a separator.
185> On Windows, the forward slash and the backward slash are both separators.
186> Instead please use `/` or `path` methods.
187
188**webpack.config.js**
189
190```js
191module.exports = {
192 plugins: [
193 new CopyPlugin({
194 patterns: [
195 {
196 from: "**/*",
197 to: "relative/path/to/dest/",
198 },
199 {
200 from: "**/*",
201 to: "/absolute/path/to/dest/",
202 },
203 {
204 from: "**/*",
205 to: "[path][name].[contenthash][ext]",
206 },
207 ],
208 }),
209 ],
210};
211```
212
213##### Function
214
215Allows to modify the writing path.
216
217> ⚠️ Don't return directly `\\` in `to` (i.e `path\to\newFile`) option because on UNIX the backslash is a valid character inside a path component, i.e., it's not a separator.
218> On Windows, the forward slash and the backward slash are both separators.
219> Instead please use `/` or `path` methods.
220
221**webpack.config.js**
222
223```js
224module.exports = {
225 plugins: [
226 new CopyPlugin({
227 patterns: [
228 {
229 from: "src/*.png",
230 to({ context, absoluteFilename }) {
231 return "dest/newPath/[name][ext]";
232 },
233 },
234 ],
235 }),
236 ],
237};
238```
239
240**webpack.config.js**
241
242```js
243module.exports = {
244 plugins: [
245 new CopyPlugin({
246 patterns: [
247 {
248 from: "src/*.png",
249 to({ context, absoluteFilename }) {
250 return Promise.resolve("dest/newPath/[name][ext]");
251 },
252 },
253 ],
254 }),
255 ],
256};
257```
258
259#### `context`
260
261Type: `String`
262Default: `options.context|compiler.options.context`
263
264A path that determines how to interpret the `from` path.
265
266> ⚠️ Don't use directly `\\` in `context` (i.e `path\to\context`) option because on UNIX the backslash is a valid character inside a path component, i.e., it's not a separator.
267> On Windows, the forward slash and the backward slash are both separators.
268> Instead please use `/` or `path` methods.
269
270**webpack.config.js**
271
272```js
273module.exports = {
274 plugins: [
275 new CopyPlugin({
276 patterns: [
277 {
278 from: "src/*.txt",
279 to: "dest/",
280 context: "app/",
281 },
282 ],
283 }),
284 ],
285};
286```
287
288The `context` option can be an absolute or relative path. If `context` is a relative, then it is converted to absolute based to `compiler.options.context`
289
290Also, `context` indicates how to interpret the search results. Further, he is considered in this role.
291
292To determine the structure from which the found resources will be copied to the destination folder, the `context` option is used.
293
294If `from` is a file, then `context` is equal to the directory in which this file is located. Accordingly, the result will be only the file name.
295
296If `from` is a directory, then `context` is the same as `from` and is equal to the directory itself. In this case, the result will be a hierarchical structure of the found folders and files relative to the specified directory.
297
298If `from` is a glob, then regardless of the `context` option, the result will be the structure specified in the `from` option
299
300More [`examples`](#examples)
301
302#### `globOptions`
303
304Type: `Object`
305Default: `undefined`
306
307Allows to configute the glob pattern matching library used by the plugin. [See the list of supported options][glob-options]
308To exclude files from the selection, you should use [globOptions.ignore option](https://github.com/mrmlnc/fast-glob#ignore)
309
310**webpack.config.js**
311
312```js
313module.exports = {
314 plugins: [
315 new CopyPlugin({
316 patterns: [
317 {
318 from: "public/**/*",
319 globOptions: {
320 dot: true,
321 gitignore: true,
322 ignore: ["**/file.*", "**/ignored-directory/**"],
323 },
324 },
325 ],
326 }),
327 ],
328};
329```
330
331#### `filter`
332
333Type: `Function`
334Default: `undefined`
335
336> ℹ️ To ignore files by path please use the [`globOptions.ignore`](#globoptions) option.
337
338**webpack.config.js**
339
340```js
341const fs = require("fs").promise;
342
343module.exports = {
344 plugins: [
345 new CopyPlugin({
346 patterns: [
347 {
348 from: "public/**/*",
349 filter: async (resourcePath) => {
350 const data = await fs.promises.readFile(resourcePath);
351 const content = data.toString();
352
353 if (content === "my-custom-content") {
354 return false;
355 }
356
357 return true;
358 },
359 },
360 ],
361 }),
362 ],
363};
364```
365
366#### `toType`
367
368Type: `String`
369Default: `undefined`
370
371Determinate what is `to` option - directory, file or template.
372Sometimes it is hard to say what is `to`, example `path/to/dir-with.ext`.
373If you want to copy files in directory you need use `dir` option.
374We try to automatically determine the `type` so you most likely do not need this option.
375
376| Name | Type | Default | Description |
377| :--------------: | :--------: | :---------: | :--------------------------------------------------------------------------------------------------- |
378| **`'dir'`** | `{String}` | `undefined` | If `to` has no extension or ends on `'/'` |
379| **`'file'`** | `{String}` | `undefined` | If `to` is not a directory and is not a template |
380| **`'template'`** | `{String}` | `undefined` | If `to` contains [a template pattern](https://webpack.js.org/configuration/output/#template-strings) |
381
382##### `'dir'`
383
384**webpack.config.js**
385
386```js
387module.exports = {
388 plugins: [
389 new CopyPlugin({
390 patterns: [
391 {
392 from: "path/to/file.txt",
393 to: "directory/with/extension.ext",
394 toType: "dir",
395 },
396 ],
397 }),
398 ],
399};
400```
401
402##### `'file'`
403
404**webpack.config.js**
405
406```js
407module.exports = {
408 plugins: [
409 new CopyPlugin({
410 patterns: [
411 {
412 from: "path/to/file.txt",
413 to: "file/without/extension",
414 toType: "file",
415 },
416 ],
417 }),
418 ],
419};
420```
421
422##### `'template'`
423
424**webpack.config.js**
425
426```js
427module.exports = {
428 plugins: [
429 new CopyPlugin({
430 patterns: [
431 {
432 from: "src/",
433 to: "dest/[name].[contenthash][ext]",
434 toType: "template",
435 },
436 ],
437 }),
438 ],
439};
440```
441
442#### `force`
443
444Type: `Boolean`
445Default: `false`
446
447Overwrites files already in `compilation.assets` (usually added by other plugins/loaders).
448
449**webpack.config.js**
450
451```js
452module.exports = {
453 plugins: [
454 new CopyPlugin({
455 patterns: [
456 {
457 from: "src/**/*",
458 to: "dest/",
459 force: true,
460 },
461 ],
462 }),
463 ],
464};
465```
466
467#### `priority`
468
469Type: `Number`
470Default: `0`
471
472Allows to specify the priority of copying files with the same destination name.
473Files for patterns with higher priority will be copied later.
474To overwrite files, the [`force`](#force) option must be enabled.
475
476**webpack.config.js**
477
478```js
479module.exports = {
480 plugins: [
481 new CopyPlugin({
482 patterns: [
483 // Copied second and will overwrite "dir_2/file.txt"
484 {
485 from: "dir_1/file.txt",
486 to: "newfile.txt",
487 force: true,
488 priority: 10,
489 },
490 // Copied first
491 {
492 from: "dir_2/file.txt",
493 to: "newfile.txt",
494 priority: 5,
495 },
496 ],
497 }),
498 ],
499};
500```
501
502#### `transform`
503
504Type: `Function|Object`
505Default: `undefined`
506
507Allows to modify the file contents.
508
509##### `Function`
510
511**webpack.config.js**
512
513```js
514module.exports = {
515 plugins: [
516 new CopyPlugin({
517 patterns: [
518 {
519 from: "src/*.png",
520 to: "dest/",
521 // The `content` argument is a [`Buffer`](https://nodejs.org/api/buffer.html) object, it could be converted to a `String` to be processed using `content.toString()`
522 // The `absoluteFrom` argument is a `String`, it is absolute path from where the file is being copied
523 transform(content, absoluteFrom) {
524 return optimize(content);
525 },
526 },
527 ],
528 }),
529 ],
530};
531```
532
533##### `Object`
534
535| Name | Type | Default | Description |
536| :-------------------------------: | :-----------------: | :---------: | :--------------------------------------------------------------------------------------------------------------- |
537| **[`transformer`](#transformer)** | `{Function}` | `undefined` | Allows to modify the file contents. |
538| **[`cache`](#cache)** | `{Boolean\|Object}` | `false` | Enable `transform` caching. You can use `transform: { cache: { key: 'my-cache-key' } }` to invalidate the cache. |
539
540###### `transformer`
541
542Type: `Function`
543Default: `undefined`
544
545**webpack.config.js**
546
547```js
548module.exports = {
549 plugins: [
550 new CopyPlugin({
551 patterns: [
552 {
553 from: "src/*.png",
554 to: "dest/",
555 // The `content` argument is a [`Buffer`](https://nodejs.org/api/buffer.html) object, it could be converted to a `String` to be processed using `content.toString()`
556 // The `absoluteFrom` argument is a `String`, it is absolute path from where the file is being copied
557 transform: {
558 transformer(content, absoluteFrom) {
559 return optimize(content);
560 },
561 },
562 },
563 ],
564 }),
565 ],
566};
567```
568
569**webpack.config.js**
570
571```js
572module.exports = {
573 plugins: [
574 new CopyPlugin({
575 patterns: [
576 {
577 from: "src/*.png",
578 to: "dest/",
579 transform: {
580 transformer(content, path) {
581 return Promise.resolve(optimize(content));
582 },
583 },
584 },
585 ],
586 }),
587 ],
588};
589```
590
591###### `cache`
592
593Type: `Boolean|Object`
594Default: `false`
595
596**webpack.config.js**
597
598Enable/disable and configure caching.
599Default path to cache directory: `node_modules/.cache/copy-webpack-plugin`.
600
601###### `Boolean`
602
603Enables/Disable `transform` caching.
604
605**webpack.config.js**
606
607```js
608module.exports = {
609 plugins: [
610 new CopyPlugin({
611 patterns: [
612 {
613 from: "src/*.png",
614 to: "dest/",
615 transform: {
616 transformer(content, path) {
617 return optimize(content);
618 },
619 cache: true,
620 },
621 },
622 ],
623 }),
624 ],
625};
626```
627
628##### `Object`
629
630Enables `transform` caching and setup cache directory and invalidation keys.
631
632**webpack.config.js**
633
634```js
635module.exports = {
636 plugins: [
637 new CopyPlugin({
638 patterns: [
639 {
640 from: "src/*.png",
641 to: "dest/",
642 transform: {
643 transformer(content, path) {
644 return optimize(content);
645 },
646 cache: {
647 directory: path.resolve(__dirname, "cache-directory"),
648 keys: {
649 // May be useful for invalidating cache based on external values
650 // For example, you can invalid cache based on `process.version` - { node: process.version }
651 key: "value",
652 },
653 },
654 },
655 },
656 ],
657 }),
658 ],
659};
660```
661
662You can setup invalidation keys using a function.
663
664Simple function:
665
666**webpack.config.js**
667
668```js
669module.exports = {
670 plugins: [
671 new CopyPlugin({
672 patterns: [
673 {
674 from: "src/*.png",
675 to: "dest/",
676 transform: {
677 transformer(content, path) {
678 return optimize(content);
679 },
680 cache: {
681 directory: path.resolve(__dirname, "cache-directory"),
682 keys: (defaultCacheKeys, absoluteFrom) => {
683 const keys = getCustomCacheInvalidationKeysSync();
684
685 return {
686 ...defaultCacheKeys,
687 keys,
688 };
689 },
690 },
691 },
692 },
693 ],
694 }),
695 ],
696};
697```
698
699Async function:
700
701**webpack.config.js**
702
703```js
704module.exports = {
705 plugins: [
706 new CopyPlugin({
707 patterns: [
708 {
709 from: "src/*.png",
710 to: "dest/",
711 transform: {
712 transformer(content, path) {
713 return optimize(content);
714 },
715 cache: {
716 directory: path.resolve(__dirname, "cache-directory"),
717 keys: async (defaultCacheKeys, absoluteFrom) => {
718 const keys = await getCustomCacheInvalidationKeysAsync();
719
720 return {
721 ...defaultCacheKeys,
722 keys,
723 };
724 },
725 },
726 },
727 },
728 ],
729 }),
730 ],
731};
732```
733
734#### `transformAll`
735
736Type: `Function`
737Default: `undefined`
738
739Allows you to modify the contents of multiple files and save the result to one file.
740
741> ℹ️ The `to` option must be specified and point to a file. It is allowed to use only `[contenthash]` and `[fullhash]` template strings.
742
743**webpack.config.js**
744
745```js
746module.exports = {
747 plugins: [
748 new CopyPlugin({
749 patterns: [
750 {
751 from: "src/**/*.txt",
752 to: "dest/file.txt",
753 // The `assets` argument is an assets array for the pattern.from ("src/**/*.txt")
754 transformAll(assets) {
755 const result = assets.reduce((accumulator, asset) => {
756 // The asset content can be obtained from `asset.source` using `source` method.
757 // The asset content is a [`Buffer`](https://nodejs.org/api/buffer.html) object, it could be converted to a `String` to be processed using `content.toString()`
758 const content = asset.data;
759
760 accumulator = `${accumulator}${content}\n`;
761 return accumulator;
762 }, "");
763
764 return result;
765 },
766 },
767 ],
768 }),
769 ],
770};
771```
772
773### `noErrorOnMissing`
774
775Type: `Boolean`
776Default: `false`
777
778Doesn't generate an error on missing file(s);
779
780```js
781module.exports = {
782 plugins: [
783 new CopyPlugin({
784 patterns: [
785 {
786 from: path.resolve(__dirname, "missing-file.txt"),
787 noErrorOnMissing: true,
788 },
789 ],
790 }),
791 ],
792};
793```
794
795#### `info`
796
797Type: `Object|Function<Object>`
798Default: `undefined`
799
800Allows to add assets info.
801
802**webpack.config.js**
803
804```js
805module.exports = {
806 plugins: [
807 new CopyPlugin({
808 patterns: [
809 "relative/path/to/file.ext",
810 {
811 from: "**/*",
812 // Terser skip this file for minimization
813 info: { minimized: true },
814 },
815 ],
816 }),
817 ],
818};
819```
820
821**webpack.config.js**
822
823```js
824module.exports = {
825 plugins: [
826 new CopyPlugin({
827 patterns: [
828 "relative/path/to/file.ext",
829 {
830 from: "**/*",
831 // Terser skip this file for minimization
832 info: (file) => ({ minimized: true }),
833 },
834 ],
835 }),
836 ],
837};
838```
839
840### Options
841
842| Name | Type | Default | Description |
843| :---------------------------: | :--------: | :-----: | :----------------------------------------------- |
844| [`concurrency`](#concurrency) | `{Number}` | `100` | Limits the number of simultaneous requests to fs |
845
846#### `concurrency`
847
848limits the number of simultaneous requests to fs
849
850**webpack.config.js**
851
852```js
853module.exports = {
854 plugins: [
855 new CopyPlugin({
856 patterns: [...patterns],
857 options: { concurrency: 50 },
858 }),
859 ],
860};
861```
862
863### Examples
864
865#### Different variants `from` (`glob`, `file` or `dir`).
866
867Take for example the following file structure:
868
869```
870src/directory-nested/deep-nested/deepnested-file.txt
871src/directory-nested/nested-file.txt
872```
873
874##### From is a Glob
875
876Everything that you specify in `from` will be included in the result:
877
878**webpack.config.js**
879
880```js
881module.exports = {
882 plugins: [
883 new CopyPlugin({
884 patterns: [
885 {
886 from: "src/directory-nested/**/*",
887 },
888 ],
889 }),
890 ],
891};
892```
893
894Result:
895
896```txt
897src/directory-nested/deep-nested/deepnested-file.txt,
898src/directory-nested/nested-file.txt
899```
900
901If you want only content `src/directory-nested/`, you should only indicate `glob` in `from`. The path to the folder in which the search should take place, should be moved to `context`.
902
903**webpack.config.js**
904
905```js
906module.exports = {
907 plugins: [
908 new CopyPlugin({
909 patterns: [
910 {
911 from: "**/*",
912 context: path.resolve(__dirname, "src", "directory-nested"),
913 },
914 ],
915 }),
916 ],
917};
918```
919
920Result:
921
922```txt
923deep-nested/deepnested-file.txt,
924nested-file.txt
925```
926
927##### From is a Dir
928
929**webpack.config.js**
930
931```js
932module.exports = {
933 plugins: [
934 new CopyPlugin({
935 patterns: [
936 {
937 from: path.resolve(__dirname, "src", "directory-nested"),
938 },
939 ],
940 }),
941 ],
942};
943```
944
945Result:
946
947```txt
948deep-nested/deepnested-file.txt,
949nested-file.txt
950```
951
952Technically, this is `**/*` with a predefined context equal to the specified directory.
953
954**webpack.config.js**
955
956```js
957module.exports = {
958 plugins: [
959 new CopyPlugin({
960 patterns: [
961 {
962 from: "**/*",
963 context: path.resolve(__dirname, "src", "directory-nested"),
964 },
965 ],
966 }),
967 ],
968};
969```
970
971Result:
972
973```txt
974deep-nested/deepnested-file.txt,
975nested-file.txt
976```
977
978##### From is a File
979
980```js
981module.exports = {
982 plugins: [
983 new CopyPlugin({
984 patterns: [
985 {
986 from: path.resolve(
987 __dirname,
988 "src",
989 "directory-nested",
990 "nested-file.txt"
991 ),
992 },
993 ],
994 }),
995 ],
996};
997```
998
999Result:
1000
1001```txt
1002nested-file.txt
1003```
1004
1005Technically, this is a filename with a predefined context equal to `path.dirname(pathToFile)`.
1006
1007**webpack.config.js**
1008
1009```js
1010module.exports = {
1011 plugins: [
1012 new CopyPlugin({
1013 patterns: [
1014 {
1015 from: "nested-file.txt",
1016 context: path.resolve(__dirname, "src", "directory-nested"),
1017 },
1018 ],
1019 }),
1020 ],
1021};
1022```
1023
1024Result:
1025
1026```txt
1027nested-file.txt
1028```
1029
1030#### Ignoring files
1031
1032**webpack.config.js**
1033
1034```js
1035module.exports = {
1036 plugins: [
1037 new CopyPlugin({
1038 patterns: [
1039 {
1040 from: path.posix.join(
1041 path.resolve(__dirname, "src").replace(/\\/g, "/"),
1042 "**/*"
1043 ),
1044 globOptions: {
1045 ignore: [
1046 // Ignore all `txt` files
1047 "**/*.txt",
1048 // Ignore all files in all subdirectories
1049 "**/subdir/**",
1050 ],
1051 },
1052 },
1053 ],
1054 }),
1055 ],
1056};
1057```
1058
1059#### Flatten copy
1060
1061Removes all directory references and only copies file names.
1062
1063> ⚠️ If files have the same name, the result is non-deterministic.
1064
1065**webpack.config.js**
1066
1067```js
1068module.exports = {
1069 plugins: [
1070 new CopyPlugin({
1071 patterns: [
1072 {
1073 from: "src/**/*",
1074 to: "[name][ext]",
1075 },
1076 ],
1077 }),
1078 ],
1079};
1080```
1081
1082Result:
1083
1084```txt
1085file-1.txt
1086file-2.txt
1087nested-file.txt
1088```
1089
1090#### Copy in new directory
1091
1092**webpack.config.js**
1093
1094```js
1095module.exports = {
1096 plugins: [
1097 new CopyPlugin({
1098 patterns: [
1099 {
1100 // When copying files starting with a dot, must specify the toType option
1101 // toType: "file",
1102 to({ context, absoluteFilename }) {
1103 return `newdirectory/${path.relative(context, absoluteFilename)}`;
1104 },
1105 from: "directory",
1106 },
1107 ],
1108 }),
1109 ],
1110};
1111```
1112
1113Result:
1114
1115```txt
1116"newdirectory/file-1.txt",
1117"newdirectory/nestedfile.txt",
1118"newdirectory/nested/deep-nested/deepnested.txt",
1119"newdirectory/nested/nestedfile.txt",
1120```
1121
1122#### Skip running JavaScript files through a minimizer
1123
1124Useful if you need to simply copy `*.js` files to destination "as is" without evaluating and minimizing them using Terser.
1125
1126**webpack.config.js**
1127
1128```js
1129module.exports = {
1130 plugins: [
1131 new CopyPlugin({
1132 patterns: [
1133 "relative/path/to/file.ext",
1134 {
1135 from: "**/*",
1136 // Terser skip this file for minimization
1137 info: { minimized: true },
1138 },
1139 ],
1140 }),
1141 ],
1142};
1143```
1144
1145##### `yarn workspaces` and `monorepos`
1146
1147When using `yarn workspaces` or` monorepos`, relative copy paths from node_modules can be broken due to the way packages are hoisting.
1148To avoid this, should explicitly specify where to copy the files from using `require.resolve`.
1149
1150**webpack.config.js**
1151
1152```js
1153module.exports = {
1154 plugins: [
1155 new CopyPlugin({
1156 patterns: [
1157 {
1158 from: `${path.dirname(
1159 require.resolve(`${moduleName}/package.json`)
1160 )}/target`,
1161 to: "target",
1162 },
1163 ],
1164 }),
1165 ],
1166};
1167```
1168
1169## Contributing
1170
1171Please take a moment to read our contributing guidelines if you haven't yet done so.
1172
1173[CONTRIBUTING](./.github/CONTRIBUTING.md)
1174
1175## License
1176
1177[MIT](./LICENSE)
1178
1179[npm]: https://img.shields.io/npm/v/copy-webpack-plugin.svg
1180[npm-url]: https://npmjs.com/package/copy-webpack-plugin
1181[node]: https://img.shields.io/node/v/copy-webpack-plugin.svg
1182[node-url]: https://nodejs.org
1183[deps]: https://david-dm.org/webpack-contrib/copy-webpack-plugin.svg
1184[deps-url]: https://david-dm.org/webpack-contrib/copy-webpack-plugin
1185[tests]: https://github.com/webpack-contrib/copy-webpack-plugin/workflows/copy-webpack-plugin/badge.svg
1186[tests-url]: https://github.com/webpack-contrib/copy-webpack-plugin/actions
1187[cover]: https://codecov.io/gh/webpack-contrib/copy-webpack-plugin/branch/master/graph/badge.svg
1188[cover-url]: https://codecov.io/gh/webpack-contrib/copy-webpack-plugin
1189[chat]: https://img.shields.io/badge/gitter-webpack%2Fwebpack-brightgreen.svg
1190[chat-url]: https://gitter.im/webpack/webpack
1191[size]: https://packagephobia.now.sh/badge?p=copy-webpack-plugin
1192[size-url]: https://packagephobia.now.sh/result?p=copy-webpack-plugin
1193[glob-options]: https://github.com/sindresorhus/globby#options
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