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node_modules/@balena/dockerignore/CHANGELOG.md
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# Change Log
All notable changes to this project will be documented in this file
automatically by Versionist. DO NOT EDIT THIS FILE MANUALLY!
This project adheres to [Semantic Versioning](http://semver.org/).
# v1.0.2
## (2020-05-13)
* Update dependencies and replace yarn with npm [Paulo Castro]
# v1.0.1
## (2020-05-02)
* Fix npm publish via balena CI [Paulo Castro]
# v1.0.0
## (2020-04-29)
* Review README.md [Paulo Castro]
# v0.0.6
## (2020-04-29)
* Update CI config (add .resinci.yml and appveyor.yml, remove codecov) [Paulo Castro]
* Add LICENSE.md and CHANGELOG.md files (setup versionist) [Paulo Castro]
* Update package.json (npm package details - fork from zeit/dockerignore) [Paulo Castro]
## 0.0.5 - 2019-04-22
* Last zeit/dockerignore release before fork as balena-io-modules/dockerignore
node_modules/@balena/dockerignore/LICENSE.md
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* Copyright 2020 Balena Ltd. under the Apache 2.0 License included in this file.
* Copyright 2018 Zeit Inc. under the MIT License included in this file.
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node_modules/@balena/dockerignore/README.md
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# dockerignore
`dockerignore` is a file filter library fully compatible with Docker's [.dockerignore
file](https://docs.docker.com/engine/reference/builder/#dockerignore-file), exposing the
same API as the popular [ignore](https://github.com/kaelzhang/node-ignore) package for the
`.gitignore` format.
`dockerignore` is also:
* Compatible with Linux, macOS and Windows.
* Compact with 0 external dependencies (production install).
* A pure Javascript port of Docker's Golang implementation of the `.dockerignore` format.
* Well tested with hundreds of test cases including comparison against the actual behavior
of `docker build` on Windows and Linux.
* Relied on in production environments by
[balena-cli](https://www.balena.io/docs/reference/balena-cli/),
[now-cli](https://github.com/zeit/now-cli/)
and other prominent projects built around Docker.
### What's different from `ignore`?
The `.dockerignore` spec has several differences from `.gitignore`:
- `*` in `.gitignore` matches everything, whereas in `.dockerignore` it only matches files in the
current directory (like glob). This difference is important when whitelisting after a `*` rule.
- `abc` in `.gitignore` matches all `abc` files and directories, however deeply nested, whereas
in `.dockerignore` it matches only at `./abc` and not in subdirectories like `./somedir/abc`.
- With `.gitignore`, when a parent directory is ignored, subdirectories cannot be re-added (using
`!`) since `git` simply avoids walking through the subtree as an optimization. With
`.dockerignore`, a subdirectory can be re-added even if a parent directory has been ignored.
- For a complete list of differences, check out the [.gitignore
spec](https://git-scm.com/docs/gitignore) and the [.dockerignore
spec](https://docs.docker.com/engine/reference/builder/#dockerignore-file).
### What's the same as `ignore`?
The entire API. `dockerignore` started as a fork of
[node-ignore](https://github.com/kaelzhang/node-ignore), and even reuses the same `index.d.ts` file
for TypeScript definitions. Under the hood, `node-ignore`'s matching logic was rewritten to closely
match Docker's implementation (modeled mainly around
[dockerignore.go](https://github.com/moby/moby/blob/v19.03.8/builder/dockerignore/dockerignore.go)
and [fileutils.go](https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go)).
### Compatibility
`dockerignore` works with Node.js version 8 and above, on Linux, macOS and Windows.
The code is compiled with [Babel](https://babeljs.io/docs/en/).
## Install
```bash
npm install --save @balena/dockerignore
```
## Usage
```js
const ignore = require('@balena/dockerignore')
const ig = ignore().add(['.abc/*', '!.abc/d/'])
```
Typescript type definitions are also included:
```typescript
import ignore from '@balena/dockerignore'
const ig = ignore().add(['.abc/*', '!.abc/d/'])
```
### Filter the given paths
```js
const paths = [
'.abc/a.js', // filtered out
'.abc/d/e.js' // included
]
ig.filter(paths) // ['.abc/d/e.js']
ig.ignores('.abc/a.js') // true
```
### As the filter function
```js
paths.filter(ig.createFilter()); // ['.abc/d/e.js']
```
### Windows paths are supported
```js
ig.filter(['.abc\\a.js', '.abc\\d\\e.js'])
// if the code above runs on windows, the result will be
// ['.abc\\d\\e.js']
```
## Backslashes _vs._ forward slashes
`dockerignore` behaves just like the Docker CLI ("docker build") in relation to the backslash (`\`)
and forward slash (`/`) characters:
OS | Location | Slash (`/`) | Backslash (`\`)
------------ | ----------------------- | ---------------| --------------------
Linux, macOS | `.dockerignore` | Path separator | Escape character
Linux, macOS | `filter()`, `ignores()` | Path separator | Part of file name
Windows | `.dockerignore` | Path separator | Path separator
Windows | `filter()`, `ignores()` | Path separator | Path separator
This means that forward slashes can be used in the `.dockerignore` file for cross-platform
compatibility. This is consistent with how Windows works generally: both forward slashes
and backslashes are accepted as path separators by the Command Prompt (cmd.exe) or
PowerShell, and by library functions like the Golang
[filepath.Clean](https://golang.org/pkg/path/filepath/#Clean) or the Node.js
[path.normalize](https://nodejs.org/docs/latest-v10.x/api/path.html#path_path_normalize_path).
The use of the backslash as an escape character (Linux and macOS only) is not documented in the
`.dockerignore` specification. "Reasonable" uses are probably to escape the few characters that
have a special meaning in the `.dockerignore` file, namely `"*#!\"` (excluding the double quotes),
as opposed to characters that have a special meaning in [regular
expressions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions)
generally. The "escaping" behavior for any other characters (e.g. `'\\b'`) is undefined and subject
to implementation-specific interpretation that may change at any time.
## Absolute paths
Leading and trailing slashes (or backslashes on Windows) are removed from `.dockerignore` patterns,
so `'/a'`, `'a/'` and `'/a/'` are all equivalent to `'a'` in a `.dockerignore` file, and they all
anchor to the "leftmost" directory when matching against relative paths. For example, pattern `'a'`
is compared with `'x'` for a given path `'x/y/z'`. This follows Docker's Golang implementation for
compatibility. Conversely, a given absolute path will not match a non-wildcard pattern. More
examples:
```js
ignore().add('a').ignores('a') // true
ignore().add('/a').ignores('a') // true
ignore().add('/a/').ignores('a') // true
ignore().add('a').ignores('/a') // false
ignore().add('/a').ignores('/a') // false
ignore().add('/a/').ignores('/a') // false
```
Considering pattern slash removal, the cases above may be reduced to:
```js
ignore().add('a').ignores('a') // true
ignore().add('a').ignores('/a') // false
```
The 'false' outcome for these examples may appear to mismatch the behavior of "docker build", when
the source argument for the Dockerfile [ADD](https://docs.docker.com/engine/reference/builder/#add)
or [COPY](https://docs.docker.com/engine/reference/builder/#copy) instructions is an absolute path
(starting with a slash). The explanation is that docker converts absolute source paths to relative
paths (relative to the "build context") **prior to pattern matching:**
https://github.com/moby/moby/blob/v19.03.8/pkg/archive/archive.go#L806
https://github.com/moby/moby/blob/v19.03.8/pkg/archive/archive.go#L825
... while `dockerignore` mirrors the implementation of the pattern matcher itself. The advice is
for your application to do the same as the docker CLI: use relative paths for pattern matching.
This is also generally more portable across different environments: development machine, CI
pipelines, servers or end user devices.
## Comments
A pattern starting with `'#'` (hash) is ignored as a comment. The hash can be prefixed with
a slash or backslash in order to match a file name that also starts with a hash:
```js
ignore().add('#abc').ignores('#abc') // false
ignore().add('/#abc').ignores('#abc') // true
ignore().add('\\#abc').ignores('#abc') // true
```
This works because of the leading slash removal from patterns described in [Absolute
Paths](#absolute-paths).
## Exclusion patterns
Patterns starting with `'!'` (exclamation mark) define matching exclusions (exceptions) as
documented in the [.dockerignore
specification](https://docs.docker.com/engine/reference/builder/#dockerignore-file). For
compatibility with Docker's implementation, patterns starting with `'/!'` or `'!/'` (but not
`'/!/'`) will also be considered exclusion patterns, in addition to slash removal described in
[Absolute Paths](#absolute-paths). Backslash escaping as `'\\!'` may be used in order to match a
file or directory name that starts with the exclamation mark, but this is only possible on Linux
and macOS, not on Windows. Again, it only behaves this way for compatibility with Docker's
implementation.
## Options
Matching is case-insensitive by default, following the `ignore` API
([ignorecase](https://www.npmjs.com/package/ignore#optionsignorecase-since-400)).
Note however that Docker performs case-sensitive matching.
Use the `ignorecase: false` option to align with Docker's behavior:
```js
const ig = ignore({ ignorecase: false }) // for case-sensitive matching
```
## Methods
### .add(pattern)
### .add(patterns)
- **pattern** `String|Ignore` An ignore pattern string, or the `Ignore` instance
- **patterns** `Array.<pattern>` Array of ignore patterns.
Adds a rule or several rules to the current manager.
Returns `this`
`pattern` could either be a line of ignore pattern or a string of multiple ignore patterns, which means we could just `ignore().add()` the content of a ignore file:
```js
ignore()
.add(fs.readFileSync(filenameOfGitignore).toString())
.filter(filenames)
```
`pattern` could also be an `ignore` instance, so that we could easily inherit the rules of another `Ignore` instance.
### .ignores(pathname)
Returns `Boolean` whether `pathname` should be ignored.
```js
ig.ignores('.abc/a.js') // true
```
### .filter(paths)
Filters the given array of pathnames, and returns the filtered array.
- **paths** `Array.<path>` The array of `pathname`s to be filtered.
### .createFilter()
Creates a filter function which could filter an array of paths with `Array.prototype.filter`.
Returns `function(path)` the filter function.
## Contributing
Contributions are always welcome!
1. Fork this repository to your own GitHub account and then clone it to your local device.
2. Install the dependencies: `npm install`
3. Add a test case (if applicable) and ensure it currently fails
4. Add code to pass the test
5. Make a pull request (additional tests will run on CI to ensure that your test case agrees with an actual `docker build`)
## Acknowledgements
The initial work on this project was done by Pranay Prakash
([@pranaygp](https://twitter.com/pranaygp)) / [▲ZEIT](https://zeit.co), Kael Zhang
([@kaelzhang](https://github.com/kaelzhang)) and the [node-ignore
contributors](https://github.com/kaelzhang/node-ignore/graphs/contributors).
Paulo Castro ([@pdcastro](https://github.com/pdcastro)) / [balena.io](https://www.balena.io/)
forked the repository in year 2020 ([encouraged by
Zeit](https://github.com/zeit/dockerignore/pull/16#issuecomment-611790479)) and put in a
substantial effort on Windows support, cross-platform compatibility and testing, leading to release
1.0.0.
node_modules/@balena/dockerignore/ignore.js
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'use strict';
/**
* @license
* Copyright 2020 Balena Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* ------------------------------------------------------------------------
*
* Copyright 2018 Zeit, Inc.
* Licensed under the MIT License. See file LICENSE.md for a full copy.
*
* ------------------------------------------------------------------------
*/
/**
* This module implements the [dockerignore
* spec](https://docs.docker.com/engine/reference/builder/#dockerignore-file),
* closely following Docker's (Moby) Golang implementation:
* https://github.com/moby/moby/blob/v19.03.8/builder/dockerignore/dockerignore.go
* https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go
* https://github.com/moby/moby/blob/v19.03.8/pkg/archive/archive.go#L825
*
* Something the spec is not clear about, but we discovered by reading source code
* and testing against the "docker build" command, is the handling of backslashes and
* forward slashes as path separators and escape characters in the .dockerignore file
* across platforms including Windows, Linux and macOS:
*
* * On Linux and macOS, only forward slashes can be used as path separators in the
* .dockerignore file, and the backslash works as an escape character.
* * On Windows, both forward slashes and backslashes are allowed as path separators
* in the .dockerignore file, and the backslash is not used as an escape character.
*
* This is consistent with how Windows works generally: both forward slashes and
* backslashes are accepted as path separators by the cmd.exe Command Prompt or
* PowerShell, and by library functions like the Golang filepath.Clean or the
* Node.js path.normalize.
*
* Similarly, path strings provided to the IgnoreBase.ignores() and IgnoreBase.filter()
* methods can use either forward slashes or backslashes as path separators on Windows,
* but only forward slashes are accepted as path separators on Linux and macOS.
*/
const path = require('path');
const factory = options => new IgnoreBase(options); // https://github.com/kaelzhang/node-ignore/blob/5.1.4/index.js#L538-L539
// Fixes typescript module import
factory.default = factory;
module.exports = factory;
function make_array(subject) {
return Array.isArray(subject) ? subject : [subject];
}
const REGEX_TRAILING_SLASH = /(?<=.)\/$/;
const REGEX_TRAILING_BACKSLASH = /(?<=.)\\$/;
const REGEX_TRAILING_PATH_SEP = path.sep === '\\' ? REGEX_TRAILING_BACKSLASH : REGEX_TRAILING_SLASH;
const KEY_IGNORE = typeof Symbol !== 'undefined' ? Symbol.for('dockerignore') : 'dockerignore'; // An implementation of Go's filepath.Clean
// https://golang.org/pkg/path/filepath/#Clean
// https://github.com/golang/go/blob/master/src/path/filepath/path.go
// Note that, like Go, on Windows this function converts forward slashes
// to backslashes.
function cleanPath(file) {
return path.normalize(file).replace(REGEX_TRAILING_PATH_SEP, '');
} // Javascript port of Golang's filepath.ToSlash
// https://golang.org/pkg/path/filepath/#ToSlash
// https://github.com/golang/go/blob/master/src/path/filepath/path.go
// Convert any OS-specific path separator to '/'. Backslash is converted
// to forward slash on Windows, but not on Linux/macOS.
// Note that both forward slashes and backslashes are valid path separators on
// Windows. As a result, code such as `pattern.split(path.sep).join('/')` fails
// on Windows when forward slashes are used as path separators.
function toSlash(file) {
if (path.sep === '/') {
return file;
}
return file.replace(/\\/g, '/');
} // Javascript port of Golang's filepath.FromSlash
// https://github.com/golang/go/blob/master/src/path/filepath/path.go
function fromSlash(file) {
if (path.sep === '/') {
return file;
}
return file.replace(/\//g, path.sep);
}
class IgnoreBase {
constructor({
// https://github.com/kaelzhang/node-ignore/blob/5.1.4/index.js#L372
ignorecase = true
} = {}) {
this._rules = [];
this._ignorecase = ignorecase;
this[KEY_IGNORE] = true;
this._initCache();
}
_initCache() {
this._cache = {};
} // @param {Array.<string>|string|Ignore} pattern
add(pattern) {
this._added = false;
if (typeof pattern === 'string') {
pattern = pattern.split(/\r?\n/g);
}
make_array(pattern).forEach(this._addPattern, this); // Some rules have just added to the ignore,
// making the behavior changed.
if (this._added) {
this._initCache();
}
return this;
} // legacy
addPattern(pattern) {
return this.add(pattern);
}
_addPattern(pattern) {
// https://github.com/kaelzhang/node-ignore/issues/32
if (pattern && pattern[KEY_IGNORE]) {
this._rules = this._rules.concat(pattern._rules);
this._added = true;
return;
}
if (this._checkPattern(pattern)) {
const rule = this._createRule(pattern.trim());
if (rule !== null) {
this._added = true;
this._rules.push(rule);
}
}
}
_checkPattern(pattern) {
// https://github.com/moby/moby/blob/v19.03.8/builder/dockerignore/dockerignore.go#L34-L40
return pattern && typeof pattern === 'string' && pattern.indexOf('#') !== 0 && pattern.trim() !== "";
}
filter(paths) {
return make_array(paths).filter(path => this._filter(path));
}
createFilter() {
return path => this._filter(path);
}
ignores(path) {
return !this._filter(path);
} // https://github.com/moby/moby/blob/v19.03.8/builder/dockerignore/dockerignore.go#L41-L53
// https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L29-L55
_createRule(pattern) {
const origin = pattern;
let negative = false; // > An optional prefix "!" which negates the pattern;
// https://github.com/moby/moby/blob/v19.03.8/builder/dockerignore/dockerignore.go#L43-L46
if (pattern[0] === '!') {
negative = true;
pattern = pattern.substring(1).trim();
} // https://github.com/moby/moby/blob/v19.03.8/builder/dockerignore/dockerignore.go#L47-L53
if (pattern.length > 0) {
pattern = cleanPath(pattern);
pattern = toSlash(pattern);
if (pattern.length > 1 && pattern[0] === '/') {
pattern = pattern.slice(1);
}
} // https://github.com/moby/moby/blob/v19.03.8/builder/dockerignore/dockerignore.go#L54-L55
if (negative) {
pattern = '!' + pattern;
} // https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L30
pattern = pattern.trim();
if (pattern === "") {
return null;
} // https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L34
// convert forward slashes to backslashes on Windows
pattern = cleanPath(pattern); // https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L36-L42
if (pattern[0] === '!') {
if (pattern.length === 1) {
return null;
}
negative = true;
pattern = pattern.substring(1);
} else {
negative = false;
}
return {
origin,
pattern,
// https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L54
dirs: pattern.split(path.sep),
negative
};
} // @returns `Boolean` true if the `path` is NOT ignored
_filter(path) {
if (!path) {
return false;
}
if (path in this._cache) {
return this._cache[path];
}
return this._cache[path] = this._test(path);
} // @returns {Boolean} true if a file is NOT ignored
// https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L62
_test(file) {
file = fromSlash(file); // equivalent to golang filepath.Dir() https://golang.org/src/path/filepath/path.go
const parentPath = cleanPath(path.dirname(file));
const parentPathDirs = parentPath.split(path.sep);
let matched = false;
this._rules.forEach(rule => {
let match = this._match(file, rule); // https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L80
if (!match && parentPath !== ".") {
// Check to see if the pattern matches one of our parent dirs.
if (rule.dirs.includes('**')) {
// Ah shucks! We have to test every possible parent path that has
// a number of dirs _n_ where
// `rule.dirs.filter(doubleStar).length <= _n_ <= parentPathDirs.length`
// since the ** can imply any number of directories including 0
for (let i = rule.dirs.filter(x => x !== '**').length; i <= parentPathDirs.length; i++) {
match = match || this._match(parentPathDirs.slice(0, i).join(path.sep), rule);
}
} else if (rule.dirs.length <= parentPathDirs.length) {
// https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L83
match = this._match(parentPathDirs.slice(0, rule.dirs.length).join(path.sep), rule);
}
}
if (match) {
matched = !rule.negative;
}
});
return !matched;
} // @returns {Boolean} true if a file is matched by a rule
_match(file, rule) {
return this._compile(rule).regexp.test(file);
} // https://github.com/moby/moby/blob/v19.03.8/pkg/fileutils/fileutils.go#L139
_compile(rule) {
if (rule.regexp) {
return rule;
}
let regStr = '^'; // Go through the pattern and convert it to a regexp.
let escapedSlash = path.sep === '\\' ? '\\\\' : path.sep;
for (let i = 0; i < rule.pattern.length; i++) {
const ch = rule.pattern[i];
if (ch === '*') {
if (rule.pattern[i + 1] === '*') {
// is some flavor of "**"
i++; // Treat **/ as ** so eat the "/"
if (rule.pattern[i + 1] === path.sep) {
i++;
}
if (rule.pattern[i + 1] === undefined) {
// is "**EOF" - to align with .gitignore just accept all
regStr += ".*";
} else {
// is "**"
// Note that this allows for any # of /'s (even 0) because
// the .* will eat everything, even /'s
regStr += `(.*${escapedSlash})?`;
}
} else {
// is "*" so map it to anything but "/"
regStr += `[^${escapedSlash}]*`;
}
} else if (ch === '?') {
// "?" is any char except "/"
regStr += `[^${escapedSlash}]`;
} else if (ch === '.' || ch === '$') {
// Escape some regexp special chars that have no meaning
// in golang's filepath.Match
regStr += `\\${ch}`;
} else if (ch === '\\') {
// escape next char. Note that a trailing \ in the pattern
// will be left alone (but need to escape it)
if (path.sep === '\\') {
// On windows map "\" to "\\", meaning an escaped backslash,
// and then just continue because filepath.Match on
// Windows doesn't allow escaping at all
regStr += escapedSlash;
continue;
}
if (rule.pattern[i + 1] !== undefined) {
regStr += '\\' + rule.pattern[i + 1];
i++;
} else {
regStr += '\\';
}
} else {
regStr += ch;
}
}
regStr += "$";
rule.regexp = new RegExp(regStr, this._ignorecase ? 'i' : '');
return rule;
}
}
node_modules/@balena/dockerignore/index.d.ts
Generated Vendored
+45
View File
@@ -0,0 +1,45 @@
export interface Ignore {
/**
* Adds a rule rules to the current manager.
* @param {string | Ignore} pattern
* @returns IgnoreBase
*/
add(pattern: string | Ignore): Ignore
/**
* Adds several rules to the current manager.
* @param {string[]} patterns
* @returns IgnoreBase
*/
add(patterns: (string | Ignore)[]): Ignore
/**
* Filters the given array of pathnames, and returns the filtered array.
* NOTICE that each path here should be a relative path to the root of your repository.
* @param paths the array of paths to be filtered.
* @returns The filtered array of paths
*/
filter(paths: string[]): string[]
/**
* Creates a filter function which could filter
* an array of paths with Array.prototype.filter.
*/
createFilter(): (path: string) => boolean
/**
* Returns Boolean whether pathname should be ignored.
* @param {string} pathname a path to check
* @returns boolean
*/
ignores(pathname: string): boolean
}
interface Options {
ignorecase?: boolean
}
/**
* Creates new ignore manager.
*/
declare function ignore(options?: Options): Ignore
export default ignore
node_modules/@balena/dockerignore/package.json
Generated Vendored
+49
View File
@@ -0,0 +1,49 @@
{
"name": "@balena/dockerignore",
"version": "1.0.2",
"description": "dockerignore is a file filter library compatible with Docker and the node-ignore API",
"main": "./ignore.js",
"files": [
"ignore.js",
"index.d.ts"
],
"scripts": {
"prepublishOnly": "npm run build",
"build": "babel -o ignore.js index.js",
"test": "npm run build && nyc ava ./test/ignore.js"
},
"repository": {
"type": "git",
"url": "git@github.com:balena-io-modules/dockerignore.git"
},
"keywords": [
"ignore",
".dockerignore",
"dockerignore",
"rules",
"manager",
"filter",
"regexp",
"regex",
"fnmatch",
"glob",
"asterisks",
"regular-expression"
],
"license": "Apache-2.0",
"bugs": {
"url": "https://github.com/balena-io-modules/dockerignore/issues"
},
"devDependencies": {
"async-sema": "^3.1.0",
"ava": "^0.25.0",
"@babel/cli": "^7.8.4",
"@babel/preset-env": "^7.9.6",
"chai": "^4.2.0",
"cuid": "^2.1.8",
"mkdirp": "^1.0.4",
"nyc": "^15.0.1",
"rimraf": "^3.0.2",
"tmp": "^0.2.1"
}
}