feat: Rewrite

### Changes

- A batch update is attempted for all **non-breaking** updates according to semver
- All **breaking** updates are still performed in a sequential manner
- If the batch update fails, the failed update tasks are performed sequentially to find out, which module was breaking
- During a rollback, the next module update is installed in parallel
- The `package.json` is now written in the end after the whole operation
- The updtr tries to preserve the semver range style. If the style can not be preserved, it falls back to caret ranges.
- This behavior can be changed by specifying a `--save` option
- By specifying the `update-to=non-breaking` option, you can now choose to install non-breaking updates. It replaces the old `--wanted` flag
- Re-design of the default reporter (it's now called `dense`)
- Missing dependencies are now installed automatically before running `npm outdated`

### Fixes

- Fixes #14 #47 #46 #13 #51 #58
- Provides a workaround for #48 by sorting all dependencies

BREAKING CHANGE: New and changed CLI options

``` 
  --use, -u             Specify the package manager to use  [choices: "npm", "yarn"] [default: "npm"]
  --exclude, --ex       Space separated list of module names that should not be updated  [array]
  --update-to, --to     Specify which updates you want to install  [choices: "latest", "non-breaking", "wanted"] [default: "latest"]
  --save, -s            Specify how updated versions should be saved to the package.json  [choices: "smart", "caret", "exact"] [default: "smart"]
  --reporter, -r        Choose a reporter for the console output  [choices: "dense", "none"] [default: "dense"]
  --test, -t            Specify a custom test command. Surround with quotes.
  --test-stdout, --out  Show test stdout if the update fails  [boolean]
  --registry, --reg     Specify a custom registry to use
  --version             Show version number  [boolean]
  --help                Show help  [boolean]
```

.babelrc

@@ -0,0 +1,44 @@
+{
+    "env": {
+        "development": {
+            "presets": [
+                [
+                    "env",
+                    {
+                        "targets": "current"
+                    }
+                ]
+            ]
+        },
+        "test": {
+            "presets": [
+                [
+                    "env",
+                    {
+                        "targets": "current"
+                    }
+                ]
+            ]
+        },
+        "production": {
+            "presets": [
+                [
+                    "env",
+                    {
+                        "targets": {
+                            "node": 4
+                        },
+                        "modules": false
+                    }
+                ]
+            ]
+        }
+    },
+    "plugins": [
+        "transform-runtime",
+        "transform-object-rest-spread",
+        "external-helpers"
+    ],
+    "sourceMaps": "inline",
+    "retainLines": true
+}

.eslintrc

@@ -1,7 +1,6 @@
 {
     "extends": [
-        "peerigon/base",
-        "peerigon/es5"
+        "peerigon/base"
     ],
     "env": {
         "node": true

.gitignore

@@ -28,4 +28,9 @@ node_modules
 
 # IDE stuff
 .idea
-.vscode
+
+# Will be generated by npm run ensure-fixtures
+test/fixtures/*/**
+
+# Rollup output
+dist

.travis.yml

@@ -1,19 +1,16 @@
 language: node_js
-node_js:
-  - "7"
-  - "6"
-  - "5"
-  - "4"
-  - "0.12"
-  - "0.10"
 
-install:
-  - npm install
+os:
+    - linux
+node_js:
+    - 7
+    - 6
+    - 4
 
 script:
-  - npm test
+    - npm install
+    - npm install -g yarn
+    - npm test
 
 after_success:
-  - npm install -g istanbul
-  - npm install coveralls
-  - istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage
+    - bash <(curl -s https://codecov.io/bash)

.vscode/launch.json

@@ -0,0 +1,42 @@
+{
+    // Use IntelliSense to learn about possible Node.js debug attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Bin",
+            "runtimeExecutable": "${workspaceRoot}/node_modules/.bin/babel-node",
+            "runtimeArgs": [
+                "--harmony_async_await"
+            ],
+            "program": "${workspaceRoot}/src/bin/index.js"
+        },
+        {
+            "name": "Current test",
+            "type": "node",
+            "request": "launch",
+            "program": "${workspaceRoot}/node_modules/jest/bin/jest.js",
+            "stopOnEntry": false,
+            "args": [
+                "${file}",
+                "--runInBand"
+            ],
+            "cwd": "${workspaceRoot}",
+            "preLaunchTask": null,
+            "runtimeExecutable": null,
+            "runtimeArgs": [
+                "--harmony_async_await",
+                "--nolazy"
+            ],
+            "env": {
+                "NODE_ENV": "test"
+            },
+            "externalConsole": false,
+            "sourceMaps": true,
+            "outDir": null
+        }
+    ]
+}

appveyor.yml

@@ -0,0 +1,18 @@
+environment:
+    matrix:
+        - nodejs_version: 7
+        - nodejs_version: 6
+        # Node 4 doesn't work because of an AppVeyor bug
+        # - nodejs_version: 4
+
+install:
+    - ps: Install-Product node $env:nodejs_version
+    - npm install
+
+test_script:
+    - npm install -g yarn
+    - node --version
+    - npm --version
+    - npm test
+
+build: off

bin/updtr

@@ -1,40 +1,3 @@
 #!/usr/bin/env node
 
-var program = require("commander");
-var updtr = require("../lib");
-var pkg = require("../package.json");
-var reporters = Object.keys(updtr.reporters);
-
-program
-  .version(pkg.version)
-  .description(pkg.description)
-  .option("-R, --reporter <reporter>", "choose reporter: " + reporters.join(", "), "default")
-  .option("-w, --wanted", "updates to wanted version specified in package.json instead of the modules latest version")
-  .option("-t, --test <test>", "change the command for the tests")
-  .option("-e, --exclude <exclude>", "exclude modules comma seperated, e.g. updtr --exclude module1,module2")
-  .option("--test-stdout", "shows stdout if your test command fails")
-  .option("--save-exact", "save exact module version")
-  .option("--registry", "change registry");
-
-program.parse(process.argv);
-
-if (program.reporter in updtr.reporters === false) {
-    console.log(program.reporter + " is not a reporter.");
-    console.log("Available reporters: " + reporters.join(", "));
-    process.exit(1);
-}
-
-updtr.run({
-    cwd: process.cwd(),
-    reporter: updtr.reporters[program.reporter],
-    wanted: program.wanted,
-    testCmd: program.test,
-    exclude: program.exclude,
-    testStdout: program.testStdout,
-    saveExact: program.saveExact,
-    registry: program.registry
-}, function (err) {
-    if (err) {
-        throw err;
-    }
-});
+require("../dist"); // eslint-disable-line