Read packages from package.json, closes #3

README.md

@@ -32,24 +32,29 @@ You can also download multiple packages by passing in a list:
 package-bundle request bluebird
 ```
 
+If no packages are entered then it will check for a package.json file, and read in the dependencies.
+
 ## Usage
 
 ```
-Usage: package-bundle|pb <packages...> [options]
+Usage: package-bundle|pb [packages...] [options]
 where <packages> are in the format: [@scope/]<pkg>[@<version>]
+If no packages are provided it will check for a package.json
 
 Create a bundle of packages including their dependencies in archive format
 
 Options:
 
   -h, --help                    output usage information
   -V, --version                 output the version number
-  -d, --dev                     include dev dependencies
-  -o, --optional                include optional dependencies
+  -d, --no-dev                  ignore dev dependencies in package.json
+  -o, --no-optional             ignore optional dependencies in package.json
+  -D, --dev-recursive           include all dev dependencies recursively
+  -O, --optional-recursive      include all optional dependencies recursively
   -f, --flat                    save in a flat file structure, instead of individual folders
   -z, --no-archive              leave dependencies in folder, and don't archive
   -x, --no-cache                don't use cache file to avoid repeat downloads
-  -O, --out-file <file>         output file name
+  -F, --out-file <file>         output file name
   -a, --all-versions            download all versions of specified packages
   -A, --all-versions-recursive  download all versions of specified packages and dependencies
   -c, --concurrency <n>         number of requests to make at the same time - default=50
@@ -62,6 +67,8 @@ Options:
 * Cache previous downloads, so you only download dependencies once
 * Download all package dependencies
 * Maintains npm registry folder structure to upload to package manager
+* Specify version of package
+* Read packages from package.json
 
 
 ## Importing into Artifactory

package.json

@@ -1,6 +1,6 @@
 {
   "name": "package-bundle",
-  "version": "0.1.1",
+  "version": "0.2.0",
   "description": "Download npm packages and dependencies as tgz's to then import into package manager or project",
   "main": "lib/index.js",
   "preferGlobal": true,

src/Resolver.js

@@ -9,6 +9,7 @@ const writeFile = Promise.promisify(fs.writeFile);
 
 const REGISTRY_URL = 'http://registry.npmjs.org';
 const CACHE_FILE = 'package-bundle-cache.json';
+const PACKAGE_JSON = 'package.json';
 
 export default class Resolver extends Step {
   static getMatchingVersion(pkg, versions, range) {
@@ -41,7 +42,7 @@ export default class Resolver extends Step {
     this.packages = args.args;
 
     if (!this.packages.length) {
-      args.help();
+      this.checkPackageJson();
     }
 
     if (args.cache) {
@@ -63,6 +64,28 @@ export default class Resolver extends Step {
       .then(() => this.getResult());
   }
 
+  checkPackageJson() {
+    try {
+      const packageFile = fs.readFileSync(PACKAGE_JSON);
+      const { dependencies, devDependencies, optionalDependencies } = JSON.parse(packageFile);
+
+      const combinedDependencies = Object.assign(
+        {},
+        dependencies,
+        this.args.dev && devDependencies,
+        this.args.optional && optionalDependencies
+      );
+
+      this.packages = Object.entries(combinedDependencies).map(([k, v]) => `${k}@${v}`);
+    } catch (err) {
+      if (err.code === 'ENOENT') {
+        this.args.help();
+      } else {
+        throw err;
+      }
+    }
+  }
+
   getResult() {
     this.complete(`Found ${this.downloads.size} package${this.downloads.size === 1 ? '' : 's'}`);
     if (this.downloads.size === 0) {
@@ -143,8 +166,8 @@ export default class Resolver extends Step {
     const combinedDependencies = Object.assign(
       {},
       dependencies,
-      this.args.dev && devDependencies,
-      this.args.optional && optionalDependencies
+      this.args.devRecursive && devDependencies,
+      this.args.optionalRecursive && optionalDependencies
     );
 
     const keys = Object.keys(combinedDependencies);

src/index.js

@@ -13,16 +13,18 @@ args._name = 'package-bundle'; // eslint-disable-line no-underscore-dangle
 
 args
   .version(require('../package').version)
-  .usage('<packages...> [options] \n  where <packages> are in the format: ' +
-    '[@scope/]<pkg>[@<version>]')
+  .usage('[packages...] [options]\n  where <packages> are in the format: ' +
+    '[@scope/]<pkg>[@<version>]\n  If no packages are provided it will check for a package.json')
   .alias('pb')
   .description('Create a bundle of packages including their dependencies in archive format')
-  .option('-d, --dev', 'include dev dependencies')
-  .option('-o, --optional', 'include optional dependencies')
+  .option('-d, --no-dev', 'ignore dev dependencies in package.json')
+  .option('-o, --no-optional', 'ignore optional dependencies in package.json')
+  .option('-D, --dev-recursive', 'include all dev dependencies recursively')
+  .option('-O, --optional-recursive', 'include all optional dependencies recursively')
   .option('-f, --flat', 'save in a flat file structure, instead of individual folders')
   .option('-z, --no-archive', 'leave dependencies in folder, and don\'t archive')
   .option('-x, --no-cache', 'don\'t use cache file to avoid repeat downloads')
-  .option('-O, --out-file <file>', 'output file name')
+  .option('-F, --out-file <file>', 'output file name')
   .option('-a, --all-versions', 'download all versions of specified packages')
   .option('-A, --all-versions-recursive', 'download all versions of specified packages and dependencies')
   .option('-c, --concurrency <n>', 'number of requests to make at the same time - default=50', parseInt)