chore(changelog): Fix changelog generator for core to work with either npm package

Author: christopherthielen

scripts/show_core_changelog.js

@@ -1,17 +1,18 @@
 #!env node
 "use strict";
+
 var gitSemverTags = require('git-semver-tags');
 var shelljs = require('shelljs');
 var path = require('path');
 var fs = require('fs');
 
-var CORE = `core`;
-var CORE_PKG = `@uirouter/${CORE}`;
-var CORE_DIR = path.join(__dirname, "..", "..", CORE);
+var CORE_PKG = `@uirouter/core`;
+var ALT_CORE_PKG = `ui-router-core`;
+var CORE_DIR = path.join(__dirname, "..", "..", 'core');
 var SHOWCHANGELOG_SCRIPT = path.join(CORE_DIR, "scripts", "show_changelog.js");
 
 var currentPackage = require('../package.json');
-if (!currentPackage.dependencies || !currentPackage.dependencies[CORE_PKG]) {
+if (!currentPackage.dependencies || (!currentPackage.dependencies[CORE_PKG] && !currentPackage[ALT_CORE_PKG])) {
   console.error(stringify(currentPackage.dependencies));
   throw new Error("No dependency on " + CORE_PKG + " found in package.json.")
 }
@@ -43,15 +44,19 @@ gitSemverTags(function (err, val) {
     if (!prevPackage.dependencies) {
       console.error(stringify(prevPackage));
       throw new Error(`previous package.json in ${val[0]} has no "dependencies" key.`);
-    } else if (!prevPackage.dependencies[CORE_PKG]) {
+    } else if (!prevPackage.dependencies[CORE_PKG] && !prevPackage.dependencies[ALT_CORE_PKG]) {
       console.error(stringify(prevPackage.dependencies));
       throw new Error(`previous package.json in ${val[0]} has no "dependencies['${CORE_PKG}']" key.`);
     }
 
-    fromTag = prevPackage.dependencies[CORE_PKG].replace(/[=~^]/, "");
+    var prevDep = prevPackage.dependencies[CORE_PKG] || prevPackage.dependencies[ALT_CORE_PKG];
+    fromTag = prevDep.replace(/[=~^]/, "");
   }
 
-  var toTag = require("../package.json").dependencies[CORE_PKG].replace(/[=~^]/g, "");
+  let pkg = require("../package.json");
+  let currentDep = pkg.dependencies[CORE_PKG] || pkg.dependencies[ALT_CORE_PKG];
+  var toTag = currentDep.replace(/[=~^]/g, "");
+
   shelljs.pushd(CORE_DIR);
   // console.log("node " + SHOWCHANGELOG_SCRIPT + " " + fromTag + " " + toTag)
   shelljs.config.silent = false;