chore(core): monorepo, esm targeting, improved management (#8707)

packages/core/cli-hooks/before-checkForChanges.js

@@ -0,0 +1,60 @@
+const semver = require("semver");
+
+const webpackPackageName = "@nativescript/webpack";
+
+module.exports = function ($staticConfig, hookArgs) {
+    const cliVersion = semver.parse($staticConfig.version);
+    const platfrom = hookArgs.prepareData.platform;
+    const projectData = hookArgs.projectData;
+
+    // Required CLI version for building IOS: 6.2.0
+    if (platfrom.toLowerCase() === "ios" &&
+        !satisfiesRequriredVersion(cliVersion, 6, 2)) {
+        throw new Error(`Building @nativescript/core for iOS requires NativeScript CLI with version at least 6.2.0. Please upgrade your NativeScript CLI version (npm i -g nativescript).`);
+    }
+
+    // Required webpack version for angular projects: 1.3.0
+    if (projectData.projectType === "Angular") {
+        const webpackMinVer = getMinWebpackVersion(projectData);
+
+        if (webpackMinVer && !satisfiesRequriredVersion(webpackMinVer, 1, 3)) {
+            throw new Error(`Building @nativescript/core for Angular requires ${webpackPackageName} with version at least 1.3.0. Please upgrade: npm i ${webpackPackageName} --save-dev.`);
+        }
+    }
+};
+
+/**
+ * Checks if semver object satisifies a major/minor requirement. Pre-release versions are OK too!
+ */
+function satisfiesRequriredVersion(actualVersion, requiredMajor, requiredMinor) {
+    // Return true for null version to handle tags (ex. "next", "rc")
+    if (!actualVersion) {
+        return true;
+    }
+
+    if (actualVersion.major < requiredMajor) {
+        return false;
+    }
+
+    if (actualVersion.major === requiredMajor && actualVersion.minor < requiredMinor) {
+        return false;
+    }
+
+    return true;
+}
+
+function getMinWebpackVersion(projectData) {
+    const devDependencies = projectData.devDependencies || {};
+    const dependencies = projectData.dependencies || {};
+    const webpackVer = dependencies[webpackPackageName] || devDependencies[webpackPackageName];
+
+    let webpackMinVer = null;
+
+    if (semver.valid(webpackVer)) {
+        webpackMinVer = semver.parse(webpackVer);
+    } else if (semver.validRange(webpackVer)) {
+        webpackMinVer = semver.minVersion(webpackVer);
+    }
+
+    return webpackMinVer;
+}