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@jotadevelopersergiohgz
@jotadeveloper
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sergiohgz
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feat: add stream library
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‎core/streams/.babelrc‎

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{
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"presets": ["es2015"],
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"env": {
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"test": {
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"plugins": [
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"istanbul"
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]
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}
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}
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}

‎core/streams/.editorconfig‎

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# top-most EditorConfig file
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root = true
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# Unix-style newlines with a newline ending every file
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[*]
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end_of_line = lf
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insert_final_newline = true
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# 2 space indentation
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[{.,}*.{js,yml,yaml}]
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indent_style = space
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indent_size = 2

‎core/streams/.eslintignore‎

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node_modules
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coverage/
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lib/
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.nyc_output
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tests-report/

‎core/streams/.eslintrc.yml‎

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# vim: syntax=yaml
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#
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# List of very light restrictions designed to prevent obvious errors,
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# not impose our own code style upon other contributors.
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#
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# This is supposed to be used with `eslint --reset`
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#
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# Created to work with eslint@0.18.0
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#
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extends: ["eslint:recommended", "google"]
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env:
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node: true
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browser: true
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es6: true
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mocha: true
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parserOptions:
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sourceType: "module"
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ecmaVersion: 8
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ecmaFeatures:
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modules: true
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rules:
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# useful to have in node.js,
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# if you're sure you don't need to handle error, rename it to "_err"
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handle-callback-err: 2
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padded-blocks: 0
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# just to make sure we don't forget to remove them when releasing
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no-debugger: 2
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# add "falls through" for those
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no-fallthrough: 2
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# enforce use curly always
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# curly: 1
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# just warnings about whitespace weirdness here
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eol-last: 1
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no-irregular-whitespace: 1
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no-mixed-spaces-and-tabs: [1, smart-tabs]
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no-trailing-spaces: 1
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# probably always an error, tell me if it's not
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no-new-require: 2
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# single most important rule here, without it linting won't even
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# make any sense
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no-undef: 2
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# in practice, those are always errors
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no-unreachable: 2
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# useful for code clean-up
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no-unused-vars: [2, {"vars": "all", "args": "none"}]
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max-len: [1, 160]
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# camelcase is standard, but this should be 1 and then 2 soon
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camelcase: 0
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# jsdoc is mandatory
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require-jsdoc: 0
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valid-jsdoc: 0
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# this feature is cool but not supported by Node 4, disable via comments
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prefer-spread: 1
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prefer-rest-params: 1
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# encorage use es6
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no-var: 2
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# configuration that should be upgraded progresivelly
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no-constant-condition: 2
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no-empty: 2
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# loop over objects http://eslint.org/docs/rules/guard-for-in
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guard-for-in: 2
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# this must be used within classes
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no-invalid-this: 2
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# All object must be uppercase
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new-cap: 2
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# readbility is important, no multiple inline declarations
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one-var: 2
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# console not allowed unless for testing
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no-console: [2, {"allow": ["log", "warn"]}]

‎core/streams/.gitignore‎

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npm-debug.log
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.DS_Store
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lib/
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node_modules/
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# Istanbul
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.nyc*
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tests-report
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# IDE
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.vscode/*
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.idea/
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*.log
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*.tar
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*.gz
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‎core/streams/.npmignore‎

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src/
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tests-report/
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.nyc_output
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.editorconfig
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.gitignore
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yarn-error.log
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yarn.lock
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.eslintrc
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.babelrc
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test/
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.eslintignore
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.eslintrc.yml
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.npmignore
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.travis.yml

‎core/streams/.travis.yml‎

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language: node_js
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node_js:
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- '4'
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- '6'
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- '7'
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- '8'
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sudo: false
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script: npm install . && npm run cover

‎core/streams/package.json‎

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{
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"name": "@verdaccio/streams",
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"version": "0.0.1",
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"description": "helper to delay streams",
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"main": "lib/index.js",
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"scripts": {
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"test": "npm run lint && mocha --require babel-polyfill --compilers js:babel-core/register ./test/**/*.spec.js",
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"lint": "eslint .",
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"build": "babel src/ --out-dir lib/ --copy-files",
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"cover": "cross-env NODE_ENV=test nyc npm t"
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},
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"devDependencies": {
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"babel-cli": "6.24.1",
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"babel-core": "6.25.0",
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"babel-plugin-istanbul": "4.1.4",
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"babel-polyfill": "6.23.0",
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"babel-preset-es2015": "6.24.1",
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"cross-env": "5.0.1",
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"eslint": "4.1.1",
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"eslint-config-google": "0.9.1",
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"mocha": "3.4.2",
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"nyc": "11.0.3"
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},
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"nyc": {
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"include": [
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"src/**/*.js"
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],
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"all": true,
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"cache": true,
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"sourceMap": false,
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"instrument": false,
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"report-dir": "./tests-report",
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"reporter": [
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"text",
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"html"
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]
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},
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"publishConfig": {
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"registry": "https://registry.npmjs.org/"
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},
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"keywords": [
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"streams"
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],
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"author": "Juan Picado <juanpicado19@gmail.com>",
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"private": false,
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"license": "MIT"
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}

‎core/streams/src/index.js‎

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'use strict';
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const Stream = require('stream');
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/**
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* This stream is used to read tarballs from repository.
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* @param {*} options
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* @return {Stream}
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*/
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class ReadTarball extends Stream.PassThrough {
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/**
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*
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* @param {Object} options
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*/
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constructor(options) {
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super(options);
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// called when data is not needed anymore
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addAbstractMethods(this, 'abort');
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}
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}
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/**
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* This stream is used to upload tarballs to a repository.
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* @param {*} options
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* @return {Stream}
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*/
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class UploadTarball extends Stream.PassThrough {
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/**
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*
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* @param {Object} options
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*/
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constructor(options) {
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super(options);
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// called when user closes connection before upload finishes
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addAbstractMethods(this, 'abort');
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// called when upload finishes successfully
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addAbstractMethods(this, 'done');
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}
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}
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/**
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* This function intercepts abstract calls and replays them allowing.
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* us to attach those functions after we are ready to do so
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* @param {*} self
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* @param {*} name
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*/
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function addAbstractMethods(self, name) {
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self._called_methods = self._called_methods || {};
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self.__defineGetter__(name, function() {
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return function() {
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self._called_methods[name] = true;
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};
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});
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self.__defineSetter__(name, function(fn) {
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delete self[name];
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self[name] = fn;
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if (self._called_methods && self._called_methods[name]) {
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delete self._called_methods[name];
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self[name]();
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}
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});
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}
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export {ReadTarball, UploadTarball};

‎core/streams/test/mystreams.spec.js‎

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'use strict';
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let ReadTarball = require('../src/index').ReadTarball;
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describe('mystreams', function() {
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it('should delay events', function(cb) {
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let test = new ReadTarball();
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test.abort();
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setTimeout(function() {
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test.abort = function() {
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cb();
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};
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test.abort = function() {
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throw Error('fail');
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};
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}, 10);
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});
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});
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