Merge pull request gulp-community#8 from A-312/work-v5

gulp-terser-js 5.0.0

.eslintignore

@@ -0,0 +1,6 @@
+coverage
+node_modules
+temp
+test/expect
+test/fixtures
+.output

.eslintrc.yml

@@ -0,0 +1,13 @@
+root: true
+extends: standard
+rules:
+  no-param-reassign: error
+  no-shadow: error
+  space-before-function-paren:
+    - error
+    - anonymous: never
+      named: never
+      asyncArrow: always
+  no-multiple-empty-lines:
+    - error
+    - { "max": 2 }

.gitignore

@@ -1 +1,6 @@
-node_modules
+node_modules/
+*.sublime-workspace
+*.sublime-project
+package-lock.json
+.nyc_output/
+.output/

.travis.yml

@@ -1,8 +1,62 @@
-sudo: false
-
 language: node_js
 node_js:
-  - "8.0.0"
-  - "10.0.0"
-  - "11.0.0"
-  - "11.6.0"
+  - "8.10"
+  - "8.15"
+  - "9.11"
+  - "lts/*"
+matrix:
+  fast_finish: true
+sudo: false
+cache:
+  directories:
+    - node_modules
+before_install:
+  # Configure npm
+  - |
+    # Skip updating shrinkwrap / lock
+    npm config set shrinkwrap false
+  # Setup Node.js version-specific dependencies
+  - |
+    # eslint for linting
+    # - remove on Node.js < 6
+    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 6 ]]; then
+      node -pe 'Object.keys(require("./package").devDependencies).join("\n")' | \
+        grep -E '^eslint(-|$)' | \
+        xargs npm rm --save-dev
+    fi
+  - |
+    # mocha for testing
+    # - use 3.x for Node.js < 4
+    # - use 5.x for Node.js < 6
+    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 4 ]]; then
+      npm install --save-dev mocha@3.5.3
+    elif [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 6 ]]; then
+      npm install --save-dev mocha@5.2.0
+    fi
+  - |
+    # supertest for http calls
+    # - use 2.0.0 for Node.js < 4
+    # - use 3.4.2 for Node.js < 6
+    if [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 4 ]]; then
+      npm install --save-dev supertest@2.0.0
+    elif [[ "$(cut -d. -f1 <<< "$TRAVIS_NODE_VERSION")" -lt 6 ]]; then
+      npm install --save-dev supertest@3.4.2
+    fi
+  # Update Node.js modules
+  - |
+    # Prune and rebuild node_modules
+    if [[ -d node_modules ]]; then
+      npm prune
+      npm rebuild
+    fi
+script:
+  # Run test script
+  - npm run test-ci
+  # Run linting
+  - |
+    # Run linting, depending on eslint install
+    if [[ -n "$(npm -ps ls eslint)" ]]; then
+      npm run-script lint
+    fi
+after_script:
+  - npm run coverage

CHANGELOG.md

@@ -0,0 +1,33 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+
+## [5.0.0] - 2019-08-14
+### Changed
+
+- Update dependencies version (Terser is now on 4.1.4) #8
+- Add test, coverage in travis #8
+
+
+## [4.1.1] - 2019-08-13
+### Fix
+
+- Fix printError and improve readme(caused by #3) #5 
+
+### Added
+
+- Add API for printError: `require('gulp-terser-js').printError` #5 
+
+
+## [4.1.0] - 2019-08-09
+### Added
+
+- Add printError #3
+
+[5.0.0]: https://github.com/A-312/gulp-terser-js/releases/tag/5.0.0
+[4.1.1]: https://github.com/A-312/gulp-terser-js/releases/tag/4.1.1
+[4.1.0]: https://github.com/A-312/gulp-terser-js/releases/tag/4.1.0

README.md

@@ -14,34 +14,10 @@ Source:[Why choose terser?](https://github.com/terser-js/terser/blob/master/READ
 
 ## Why choose `gulp-terser-js`
 
-This plugins display formatted error:
+This plugin displays formatted error:
 
 ![error screenshot](https://i.imgur.com/eZUpLmB.png)
 
-## Information
-
-<table>
-<tr>
-<td>Package</td><td>gulp-terser-js</td>
-</tr>
-<tr>
-<td>Description</td>
-<td>Terser-js plugin for gulp</td>
-</tr>
-<tr>
-<td>Node Version</td>
-<td>Recommanded >= 8.0.0</td>
-</tr>
-<tr>
-<td>Terser Version</td>
-<td>Recommanded v3.14+</td>
-</tr>
-<tr>
-<td>Gulp Version</td>
-<td>3.x</td>
-</tr>
-</table>
-
 ## Installation
 
 ```
@@ -124,3 +100,11 @@ function printLESSError(error) {
   this.emit('end')
 }
 ```
+
+## Version
+
+| Description    | gulp-terser-js |
+| -------------- | -------------- |
+| Node Version   | >= 8.10.0      |
+| Terser Version | 4.1.4+         |
+| Gulp Version   | >= 4.X         |

bin/index.js

@@ -0,0 +1,89 @@
+const through2 = require('through2')
+const assign = require('object-assign')
+const PluginError = require('plugin-error')
+const applySourceMap = require('vinyl-sourcemaps-apply')
+const os = require('os')
+
+const terser = require('terser')
+
+function gulpTerser(options) {
+  // Mixes in default options.
+  const opts = assign({}, {}, options)
+
+  return through2.obj(function(file, enc, next) {
+    if (file.isNull()) {
+      return next(null, file)
+    }
+
+    if (file.isStream()) {
+      return next(new PluginError('gulp-terser', 'Streaming not supported'))
+    }
+
+    const str = file.contents.toString()
+    let build = {}
+
+    // Bootstrap source maps
+    if (file.sourceMap) {
+      opts.sourceMap = {}
+      opts.sourceMap.filename = file.sourceMap.file
+    }
+
+    if (file.sourceMap && file.sourceMap.file) {
+      build[file.sourceMap.file] = str
+    } else {
+      build = str
+    }
+    const res = terser.minify(build, opts)
+
+    if (res.error) {
+      res.error.filePath = file.path
+      res.error.fileContent = (typeof build === 'string') ? build : build[res.error.filename]
+
+      return next(printError(new PluginError('gulp-terser', res.error)))
+    }
+
+    file.contents = new (Buffer.from || Buffer)(res.code) // eslint-disable-line node/no-deprecated-api
+
+    if (file.sourceMap && res.map) {
+      applySourceMap(file, res.map)
+    }
+
+    return next(null, file)
+  })
+}
+
+function alignLine(num, text, longer, maxsize) {
+  let maxlength = process.stdout.columns - 1
+  const spaces = num + Array(longer - (num + '').length).join(' ')
+  maxlength -= spaces.length + 3
+  console.log('\x1B[36m' + spaces + ' |\x1B[00m ' + text.slice(0, (maxsize < maxlength) ? maxlength : maxsize))
+}
+
+function printError(error) {
+  if (!error.fileContent || (error.line === undefined && error.col === undefined)) {
+    return console.error(error.stack || error)
+  }
+
+  const fileContent = error.fileContent
+  const lines = fileContent.replace(/\t/g, '    ').split(os.EOL)
+  const more = (error.line + ' ').length
+  const col = error.col + 1
+  const pos = (more + 2) + fileContent.split(os.EOL)[error.line - 1].replace(/[^\t]/g, '').length * 3 + parseInt(col)
+
+  console.log(`\nError with ${error.plugin} :`)
+  for (let i = error.line - 5; i < error.line; i++) {
+    if (lines[i]) {
+      alignLine(i + 1, lines[i], more, pos)
+    }
+  }
+
+  console.log(Array(pos).join(' ') + '\x1B[91m^\x1B[00m')
+  console.log('(' + error.name + ') ' + error.message + ' (line : \x1B[96m' + error.line + '\x1B[00m, col : \x1B[96m' + col + '\x1B[00m).')
+  console.log(`in : ${error.filePath}\n`)
+
+  return error
+}
+
+gulpTerser.printError = printError
+
+module.exports = gulpTerser