POC upload using SAS URL

packages/artifact/src/internal/upload/tmp/a.txt

@@ -0,0 +1 @@
+hello there! This is from a.txt

packages/artifact/src/internal/upload/tmp/b.txt

@@ -0,0 +1 @@
+This is from b.txt

packages/artifact/src/internal/upload/tmp/testing.ts

@@ -0,0 +1,64 @@
+import {AppendBlobAppendBlockOptions, BlobClient} from '@azure/storage-blob'
+import * as a from 'archiver'
+import * as fs from 'fs'
+import * as stream from 'stream'
+
+// for local testing, run this using ts-node testing.ts
+export async function test(){
+
+    const sasURL = "http://127.0.0.1:11000/devstoreaccount1/actions-results/workflow-run-d...{add full SAS URL for testing here}"
+    const blobClient = new BlobClient(sasURL);
+    const zip = a.create('zip', {
+        zlib: { level: 9 } // Sets the compression level.
+    });
+
+    // append files that are going to be part of the final zip
+    zip.append('this is file 1', { name: 'file1.txt' });
+    zip.append('this is file 2', { name: 'file2.txt' });
+    zip.append('this is file 1 in a directory', { name: 'dir/file1.txt' });
+    zip.append('this is file 2 in a directory', { name: 'dir/file2.txt' });
+    zip.append(fs.createReadStream('a.txt'), { name: 'dir2/a.txt' })
+    zip.append(fs.createReadStream('b.txt'), { name: 'dir2/b.txt' })
+
+    // Create in-memory duplex stream to pipe zip straight to the upload
+    const passThroughStream = new stream.PassThrough()
+    zip.pipe(passThroughStream)
+    zip.finalize();
+
+    // Upload options
+    const ONE_MEGABYTE = 1024 * 1024;
+    const uploadOptions = { bufferSize: 4 * ONE_MEGABYTE, maxBuffers: 5 };
+    const blockBlobClient = blobClient.getBlockBlobClient()
+  
+    // Upload!
+    try {
+        await blockBlobClient.uploadStream(
+            passThroughStream,
+            uploadOptions.bufferSize,
+            uploadOptions.maxBuffers
+        );
+    } catch (error){
+        console.log(error)
+    }
+
+    // That was easy
+    console.log("this worked!")
+}
+
+test()
+
+
+    // Another simple way of doing this
+    //const appendBlobClient = blobClient.getAppendBlobClient()
+
+    //const response = await appendBlobClient.createIfNotExists()
+    //console.log(response)
+
+
+    //const content = "hello there! This is uploading from a SAS"
+
+    //const options : AppendBlobAppendBlockOptions = {
+        // TODO, we could add MD5 or CRC64 hash info to protect the integrity
+    //}
+
+    //const response2 = await appendBlobClient.appendBlock(content, content.length, options);

packages/artifact/src/internal/upload/upload-artifact.ts

@@ -16,6 +16,7 @@ export async function uploadArtifact(
     // TODO Twirp call to create new artifact
 
     // TODO Upload to blob storage using SAS URL
+    // testing.ts is being used to prototype this functionality
 
     // TODO Twirp call to finalize the new artifact upload