feat(MongoBinaryDownloadUrl): change to use "aarch64" by default and map to "arm64" where needed

also slightly update the ubuntu arm translation
also adds more tests for arm64 versions

fixes #678

Author: hasezoey

packages/mongodb-memory-server-core/src/util/MongoBinaryDownloadUrl.ts

@@ -130,8 +130,8 @@ export class MongoBinaryDownloadUrl implements MongoBinaryDownloadUrlOpts {
       name = `mongodb-macos`; // somehow these files are not listed in https://www.mongodb.org/dl/osx
     }
 
-    if (this.arch === 'arm64') {
-      log('getArchiveNameOsx: Arch is "arm64", using x64 binary');
+    if (this.arch === 'aarch64') {
+      log('getArchiveNameOsx: Arch is "aarch64", using x64 binary');
       this.arch = 'x86_64';
     }
 
@@ -422,24 +422,16 @@ export class MongoBinaryDownloadUrl implements MongoBinaryDownloadUrlOpts {
 
     const ubuntuYear: number = parseInt(ubuntuOS.release.split('.')[0], 10);
 
-    // this is, because currently mongodb only really provides arm64 binaries for "ubuntu1604"
-    if (this.arch === 'arm64') {
+    if (this.arch === 'aarch64') {
       // this is because, before version 4.1.10, everything for "arm64" / "aarch64" were just "arm64" and for "ubuntu1604"
       if (semver.satisfies(this.version, '<4.1.10')) {
         this.arch = 'arm64';
 
         return 'ubuntu1604';
       }
-      if (semver.satisfies(this.version, '>=4.1.10')) {
-        // this is because mongodb changed since 4.1.0 to use "aarch64" instead of "arm64"
-        this.arch = 'aarch64';
-
-        // this is because since versions below "4.4.0" did not provide an binary for something like "20.04"
-        if (semver.satisfies(this.version, '<4.4.0')) {
-          return 'ubuntu1804';
-        }
-
-        return `ubuntu${ubuntuYear || 18}04`;
+      // this is because versions below "4.4.0" did not provide an binary for anything above 1804
+      if (semver.satisfies(this.version, '>=4.1.10 <4.4.0')) {
+        return 'ubuntu1804';
       }
     }
 
@@ -538,7 +530,7 @@ export class MongoBinaryDownloadUrl implements MongoBinaryDownloadUrlOpts {
       case 'x64':
         return 'x86_64';
       case 'arm64':
-        return 'arm64';
+        return 'aarch64';
       case 'aarch64':
         return 'aarch64';
       default:

packages/mongodb-memory-server-core/src/util/__tests__/MongoBinaryDownloadUrl.test.ts

@@ -153,6 +153,38 @@ describe('MongoBinaryDownloadUrl', () => {
               'https://fastdl.mongodb.org/linux/mongodb-linux-aarch64-ubuntu2004-4.4.6.tgz'
             );
           });
+
+          it('for ubuntu arm64 5.0.0 & ubuntu2004 (above 4.4.0)', async () => {
+            const du = new MongoBinaryDownloadUrl({
+              platform: 'linux',
+              arch: 'arm64',
+              version: '5.0.0',
+              os: {
+                os: 'linux',
+                dist: 'Ubuntu Linux',
+                release: '20.04',
+              },
+            });
+            expect(await du.getDownloadUrl()).toBe(
+              'https://fastdl.mongodb.org/linux/mongodb-linux-aarch64-ubuntu2004-5.0.0.tgz'
+            );
+          });
+
+          it('for ubuntu arm64 5.0.0 & ubuntu2204 (above 4.4.0)', async () => {
+            const du = new MongoBinaryDownloadUrl({
+              platform: 'linux',
+              arch: 'arm64',
+              version: '5.0.0',
+              os: {
+                os: 'linux',
+                dist: 'Ubuntu Linux',
+                release: '22.04',
+              },
+            });
+            expect(await du.getDownloadUrl()).toBe(
+              'https://fastdl.mongodb.org/linux/mongodb-linux-aarch64-ubuntu2004-5.0.0.tgz'
+            );
+          });
         });
       });