feat: add maven central (#5)

README.md

@@ -37,4 +37,12 @@ To see if a package has been uploaded to CocoaPods, use the `cocoapods` package
 
 Here is an example with the CLI:
 
-`npx is-it-deployed --package-manager cocoapods --package-name CustomerIO --package-version 2.8.3`
+`npx is-it-deployed --package-manager cocoapods --package-name CustomerIO --package-version 2.8.3`
+
+## Maven
+
+To see if a package has been uploaded to the Maven Central repository, use the `maven` package manager with the module or the CLI.
+
+Here is an example with the CLI:
+
+`npx is-it-deployed --package-manager maven --package-name 'io.customer.android:tracking' --package-version 3.6.6`

src/e2e.spec.ts

@@ -38,6 +38,27 @@ describe('cocoapods', () => {
   it('should return false for package version that has not been deployed', async () => {    
     const result = await isItDeployed({ packageManager: 'cocoapods', packageName: 'CustomerIO', packageVersion: '99.99.99' })
 
+    expect(result).toBe(false)
+  })
+})
+
+describe('maven', () => {
+  it('should return true for package that does exist with a specific version', async () => {
+    const result = await isItDeployed({ packageManager: 'maven', packageName: 'io.customer.android:tracking', packageVersion: '3.6.6' })
+    expect(result).toBe(true)
+  })
+
+  it('should return false for package that does exist', async () => {    
+    const randomString100CharsLong = Array.from({ length: 100 }, () => String.fromCharCode(Math.floor(Math.random() * 62) + 48)).join('');    
+
+    const result = await isItDeployed({ packageManager: 'maven', packageName: randomString100CharsLong, packageVersion: '1.0.0' })
+
+    expect(result).toBe(false)
+  })
+
+  it('should return false for package version that has not been deployed', async () => {    
+    const result = await isItDeployed({ packageManager: 'maven', packageName: 'io.customer.android:tracking', packageVersion: '99.99.99' })
+
     expect(result).toBe(false)
   })
 })

src/index.ts

@@ -1,12 +1,15 @@
 import { NpmPackageManager } from "./packageManagers/npm";
 import { CocoapodsPackageManager } from "./packageManagers/cocoapods";
+import { MavenPackageManager } from "./packageManagers/maven";
 
-export const isItDeployed = (args: { packageManager: 'npm' | 'cocoapods', packageName: string, packageVersion: string }) => {  
+export const isItDeployed = (args: { packageManager: 'npm' | 'cocoapods' | 'maven', packageName: string, packageVersion: string }) => {  
   switch (args.packageManager) {
     case 'npm':
       return NpmPackageManager.doesItExist(args)
     case 'cocoapods':
       return CocoapodsPackageManager.doesItExist(args)
+    case 'maven':
+      return MavenPackageManager.doesItExist(args)
     default:      
       throw new Error('Package manager not supported');
   }  

src/packageManagers/maven.spec.ts

@@ -0,0 +1,16 @@
+import http from "tiny-json-http"
+import { MavenPackageManager } from "./maven"
+
+it('should create expected maven http path given a package name', async() => {
+  const givenPackageName = 'io.customer.android:tracking'
+  const givenVersion = '3.6.6'
+  const expectedPath = 'https://repo.maven.apache.org/maven2/io/customer/android/tracking/3.6.6/'
+
+  jest.spyOn(http, 'get').mockImplementation(() => Promise.resolve({body: []}))
+
+  await MavenPackageManager.doesItExist({ packageName: givenPackageName, packageVersion: givenVersion })
+
+  const actual = (http.get as jest.Mock).mock.calls[0][0].url
+
+  expect(actual).toBe(expectedPath)
+})

src/packageManagers/maven.ts

@@ -0,0 +1,17 @@
+import { PackageManager } from ".";
+import http from "tiny-json-http"
+
+export const MavenPackageManager: PackageManager = {
+  doesItExist: async (args: { packageName: string, packageVersion: string }) => {
+    // given packageName: 'io.customer.android:tracking', we want to generate the path 'io/customer/android/tracking/'    
+    const packageNameSplit = args.packageName.split(/[.:]/); // splits by . or :
+    const packagePath = packageNameSplit.join('/');
+
+    try {
+      await http.get({url: `https://repo.maven.apache.org/maven2/${packagePath}/${args.packageVersion}/`})
+      return true 
+    } catch (error) {
+      return false
+    }       
+  }
+}