more functions that help uploading a file listing.

tasks/aws-s3-builds-page/s3client/index.js

@@ -1,5 +1,5 @@
 const { listFiles } = require('./listFiles');
-const { uploadFile } = require('./uploadFile');
+const { uploadFile, uploadData } = require('./uploadFile');
 const { deleteFile } = require('./deleteFile');
 const { S3Client } = require('@aws-sdk/client-s3');
 const { requireEnvVar } = require('./requireEnvVar');
@@ -21,8 +21,13 @@ function createS3Client() {
     async listFiles() {
       return listFiles(s3Client, bucket);
     },
-    async uploadFile(localName, remoteName) {
-      await uploadFile(s3Client, bucket, localName, remoteName);
+    async uploadFile(localName, remoteName, { contentType } = {}) {
+      await uploadFile(s3Client, bucket, localName, remoteName, {
+        contentType
+      });
+    },
+    async uploadData(data, remoteName, { contentType } = {}) {
+      await uploadData(s3Client, bucket, data, remoteName, { contentType });
     },
     async deleteFile(remoteName) {
       await deleteFile(s3Client, bucket, remoteName);

tasks/aws-s3-builds-page/s3client/s3-test.js

@@ -29,6 +29,23 @@ runTest(async ({ log }) => {
   log(`Check contents of "${filename}"`);
   const uploadedContents = await client.fetchFile(filename);
   expectStringContains('"name": "handlebars"', uploadedContents);
+  await expectContentType(filename, 'application/octet-stream');
+
+  log(`Uploading with content type "${filename}"`);
+  await client.uploadFile('package.json', filename, {
+    contentType: 'text/html'
+  });
+  log('Checking content-type');
+  await expectContentType(filename, 'text/html');
+
+  log('Upload data as text/plain');
+  await client.uploadData('Hello world', filename, {
+    contentType: 'text/plain'
+  });
+  log('Checking content-type');
+  await expectContentType(filename, 'text/plain');
+  log(`Check contents of "${filename}"`);
+  expectStringContains('Hello world', await client.fetchFile(filename));
 
   log(`Delete "${filename}"`);
   await client.deleteFile(filename);
@@ -45,3 +62,14 @@ function expectStringContains(needle, haystack) {
     throw new Error(`Expecting to find "${needle}" in string "${haystack}"`);
   }
 }
+
+async function expectContentType(remoteName, expectedContentType) {
+  const contentType = (await fetch(client.fileUrl(remoteName))).headers.get(
+    'Content-Type'
+  );
+  if (contentType !== expectedContentType) {
+    throw new Error(
+      `Expecting to find content-type "${expectedContentType}" but found "${contentType}"`
+    );
+  }
+}

tasks/aws-s3-builds-page/s3client/uploadFile.js

@@ -1,14 +1,31 @@
 const { PutObjectCommand } = require('@aws-sdk/client-s3');
 const fs = require('node:fs/promises');
 
-async function uploadFile(s3Client, bucket, localName, remoteName) {
+async function uploadFile(
+  s3Client,
+  bucket,
+  localName,
+  remoteName,
+  { contentType } = {}
+) {
   const fileContents = await fs.readFile(localName);
+  await uploadData(s3Client, bucket, fileContents, remoteName, { contentType });
+}
+
+async function uploadData(
+  s3Client,
+  bucket,
+  data,
+  remoteName,
+  { contentType } = {}
+) {
   const command = new PutObjectCommand({
     Bucket: bucket,
     Key: remoteName,
-    Body: fileContents
+    Body: data,
+    ContentType: contentType
   });
   await s3Client.send(command);
 }
 
-module.exports = { uploadFile };
+module.exports = { uploadFile, uploadData };

tasks/aws-s3-builds-page/test-utils/runTest.js

@@ -6,6 +6,9 @@ const s3Client = createS3Client();
 function runTest(asyncFn) {
   asyncFn({ log: console.log.bind(console) })
     .finally(detectSurplusFiles)
+    .then(() => {
+      console.log('DONE');
+    })
     .catch(error => {
       console.error(error);
       process.exit(1);
@@ -27,7 +30,6 @@ async function detectSurplusFiles() {
   if (surplusFileDetected) {
     console.log(`run with --delete-surplus to delete surplus files`);
   }
-  console.log('DONE');
 }
 
 module.exports = { runTest };