feat: Use yarn package manager when available

updtr is now using the yarn package manager when a `yarn.lock` file exists in `process.cwd()`.

.travis.yml

@@ -7,6 +7,9 @@ node_js:
   - "0.12"
   - "0.10"
 
+install:
+  - npm install
+
 script:
   - npm test
 

README.md

@@ -11,6 +11,8 @@
 
 Based on `npm outdated`, **updtr** installs the latest version and runs `npm test` for each dependency. If the test succeeds, **updtr** saves the new version number to your `package.json`. If the test fails, however, **updtr** rolls back its changes.
 
+Additionally, it will use `yarn` instead of `npm` when a `yarn.lock` file is present in your project.
+
 Made by [Peerigon](https://peerigon.com/?pk_campaign=gh-os&pk_kwd=updtr).
 
 ![updtr](assets/updtr.gif)
@@ -34,7 +36,7 @@ npm install -g updtr
 
     -h, --help                 output usage information
     -V, --version              output the version number
-    -R, --reporter <reporter>  choose reporter: default, shy
+    -R, --reporter <reporter>  choose reporter: default, shy, simple
     -w, --wanted               updates to wanted version specified in package.json instead of the modules latest version
     -t, --test <test>          change the command for the tests
     -e, --exclude <exclude>    exclude modules comma seperated, e.g. updtr --exclude module1,module2

lib/filter.js

@@ -2,8 +2,8 @@
 
 var semver = require("semver");
 
-function isGitDependency(info) {
-    return info.latest === "git";
+function isExoticDependency(info) {
+    return ["git", "exotic"].indexOf(info.latest) !== -1;
 }
 
 function isAlreadyInstalled(info) {
@@ -27,7 +27,7 @@ function isCurrentGreaterThanUpdateTo(info) {
 
 function filter(config) {
     return function (info) {
-        return isGitDependency(info) === false &&
+        return isExoticDependency(info) === false &&
             isAlreadyInstalled(info) === false &&
             isUnstable(info) === false &&
             isExcluded(info, config.exclude) === false &&

lib/run.js

@@ -4,14 +4,16 @@ var async = require("async");
 var childProcess = require("child_process");
 var filter = require("./filter");
 var EventEmitter = require("./EventEmitter.js");
+var fs = require("fs");
+var path = require("path");
 
-var defaultTestCmd = "npm test";
+var defaultTestCmdNpm = "npm test";
+var defaultTestCmdYarn = "yarn test";
 
 function run(config, done) {
     var emitter = new EventEmitter();
     var testCmd;
     var reporter;
-    var cwd;
 
     function exec(cmd, cb) {
         childProcess.exec(cmd, { maxBuffer: Infinity, encoding: "utf8", cwd: config.cwd }, cb);
@@ -22,25 +24,28 @@ function run(config, done) {
         done(err || null);
     }
 
+    if (typeof config.cwd !== "string") {
+        throw new Error("Cannot run updtr: cwd missing");
+    }
+
     sanitizeConfig(config);
 
+    if (config.registry && config.useYarn) {
+        throw new Error("`yarn add` does not support custom registries yet. Please use a .npmrc file to achieve this.");
+    }
+
     reporter = config.reporter;
-    cwd = config.cwd;
     testCmd = config.testCmd;
 
-    if (typeof cwd !== "string") {
-        throw new Error("Cannot run updtr: cwd missing");
-    }
-
     reporter(emitter);
 
     emitter.emit("init", {
         cwd: config.cwd
     });
-    exec("npm outdated --json --long --depth=0", function (err, stdout) {
+    exec(config.useYarn ? "yarn outdated --json --flat" : "npm outdated --json --long --depth=0", function (err, stdout) {
         var missing;
         var outdated;
-        var infos;
+        var infos = [];
         var tasks;
 
         function createTask(info, index) {
@@ -50,19 +55,21 @@ function run(config, done) {
                     total: tasks.length,
                     info: info,
                     testCmd: testCmd,
-                    installCmd: "npm i" + (config.registry ? (" --registry " + config.registry) : "")
+                    installCmd: (config.useYarn ? "yarn add" : "npm i") + (config.registry ? (" --registry " + config.registry) : "")
                 };
                 var testStdout;
-                var installCmd = event.installCmd + " " + info.name + "@" + info.updateTo + " " + info.saveCmd;
+                var installCmd;
 
-                if (config.saveExact) {
-                    installCmd += " --save-exact";
+                if (!config.useYarn && config.saveExact) {
+                    event.installCmd += " --save-exact";
                 }
 
+                installCmd = event.installCmd + " " + info.name + "@" + info.updateTo + " " + info.saveCmd;
+
                 emitter.emit("updating", event);
 
                 async.series({
-                    deleteOldVersion: async.apply(exec, "npm remove " + info.name + " " + info.saveCmd),
+                    deleteOldVersion: async.apply(exec, (config.useYarn ? "yarn remove " : "npm remove ") + info.name + " " + info.saveCmd),
                     installNewVersion: async.apply(exec, installCmd),
                     emitTestingEvent: function (done) {
                         emitter.emit("testing", event);
@@ -113,7 +120,22 @@ function run(config, done) {
         }
 
         outdated = JSON.parse(stdout);
-        infos = Object.keys(outdated)
+        if (config.useYarn) {
+            if ("data" in outdated && outdated.data.body instanceof Array) {
+                infos = outdated.data.body.map(function (info) {
+                    return {
+                        name: info[0],
+                        current: info[1],
+                        saveCmd: info[4] === "devDependencies" ? "--dev" : "",
+                        type: info[4],
+                        wanted: info[2],
+                        latest: info[3],
+                        updateTo: config.wanted ? info[2] : info[3]
+                    };
+                });
+            }
+        } else {
+            infos = Object.keys(outdated)
             .map(function (moduleName) {
                 var info = outdated[moduleName];
 
@@ -122,8 +144,10 @@ function run(config, done) {
                 info.updateTo = config.wanted ? info.wanted : info.latest;
 
                 return info;
-            })
-            .filter(filter(config));
+            });
+        }
+
+        infos = infos.filter(filter(config));
 
         missing = modulesMissing(infos);
         if (missing.length > 0) {
@@ -166,8 +190,9 @@ function modulesMissing(infos) {
 }
 
 function sanitizeConfig(config) {
+    config.useYarn = fs.existsSync(path.resolve(config.cwd, "yarn.lock"));
     config.reporter = config.reporter || Function.prototype;
-    config.testCmd = config.testCmd || defaultTestCmd;
+    config.testCmd = config.testCmd || (config.useYarn ? defaultTestCmdYarn : defaultTestCmdNpm);
     config.exclude = config.exclude && config.exclude.split(",").map(function (name) {
         return name.trim();
     }) || [];

package.json

@@ -30,6 +30,7 @@
     "eslint-plugin-jsdoc": "^2.3.1",
     "istanbul": "^0.4.3",
     "mocha": "^2.3.3",
+    "rewire": "^2.5.2",
     "sinon": "^1.17.4",
     "sinon-chai": "^2.8.0"
   },