Document Artifact Limitations + Bump actions/artifact package version (#51)

* Document Artifact Limitations

* README Updates

* Restructure README

README.md

@@ -135,11 +135,35 @@ steps:
 
 > Note: The `id` defined in the `download/artifact` step must match the `id` defined in the `echo` step (i.e `steps.[ID].outputs.download-path`)
 
+# Limitations
+
+### Permission Loss
+
+:exclamation: File permissions are not maintained during artifact upload :exclamation: For example, if you make a file executable using `chmod` and then upload that file, post-download the file is no longer guaranteed to be set as an executable.
+
+### Case Insensitive Uploads
+
+:exclamation: File uploads are case insensitive :exclamation: If you upload `A.txt` and `a.txt` with the same root path, only a single file will be saved and available during download.
+
+### Maintaining file permissions and case sensitive files
+
+If file permissions and case sensitivity are required, you can `tar` all of your files together before artifact upload. Post download, the `tar` file will maintain file permissions and case sensitivity.
+
+```yaml
+  - name: 'Tar files'
+    run: tar -cvf my_files.tar /path/to/my/directory
+
+  - name: 'Upload Artifact'
+    uses: actions/upload-artifact@v2
+    with:
+      name: my-artifact
+      path: my_files.tar    
+```
+
 # @actions/artifact package
 
 Internally the [@actions/artifact](https://github.com/actions/toolkit/tree/main/packages/artifact) NPM package is used to interact with artifacts. You can find additional documentation there along with all the source code related to artifact download.
 
-
 # License
 
 The scripts and documentation in this project are released under the [MIT License](LICENSE)

dist/index.js

@@ -3509,7 +3509,6 @@ class DefaultArtifactClient {
         });
     }
     downloadArtifact(name, path, options) {
-        var _a;
         return __awaiter(this, void 0, void 0, function* () {
             const downloadHttpClient = new download_http_client_1.DownloadHttpClient();
             const artifacts = yield downloadHttpClient.listArtifacts();
@@ -3529,7 +3528,7 @@ class DefaultArtifactClient {
             path = path_1.normalize(path);
             path = path_1.resolve(path);
             // During upload, empty directories are rejected by the remote server so there should be no artifacts that consist of only empty directories
-            const downloadSpecification = download_specification_1.getDownloadSpecification(name, items.value, path, ((_a = options) === null || _a === void 0 ? void 0 : _a.createArtifactFolder) || false);
+            const downloadSpecification = download_specification_1.getDownloadSpecification(name, items.value, path, (options === null || options === void 0 ? void 0 : options.createArtifactFolder) || false);
             if (downloadSpecification.filesToDownload.length === 0) {
                 core.info(`No downloadable files were found for the artifact: ${artifactToDownload.name}`);
             }
@@ -4557,11 +4556,12 @@ const utils_1 = __webpack_require__(870);
  * Used for managing http clients during either upload or download
  */
 class HttpManager {
-    constructor(clientCount) {
+    constructor(clientCount, userAgent) {
         if (clientCount < 1) {
             throw new Error('There must be at least one client');
         }
-        this.clients = new Array(clientCount).fill(utils_1.createHttpClient());
+        this.userAgent = userAgent;
+        this.clients = new Array(clientCount).fill(utils_1.createHttpClient(userAgent));
     }
     getClient(index) {
         return this.clients[index];
@@ -4570,7 +4570,7 @@ class HttpManager {
     // for more information see: https://github.com/actions/http-client/blob/04e5ad73cd3fd1f5610a32116b0759eddf6570d2/index.ts#L292
     disposeAndReplaceClient(index) {
         this.clients[index].dispose();
-        this.clients[index] = utils_1.createHttpClient();
+        this.clients[index] = utils_1.createHttpClient(this.userAgent);
     }
     disposeAndReplaceAllClients() {
         for (const [index] of this.clients.entries()) {
@@ -5929,7 +5929,7 @@ const upload_gzip_1 = __webpack_require__(647);
 const stat = util_1.promisify(fs.stat);
 class UploadHttpClient {
     constructor() {
-        this.uploadHttpManager = new http_manager_1.HttpManager(config_variables_1.getUploadFileConcurrency());
+        this.uploadHttpManager = new http_manager_1.HttpManager(config_variables_1.getUploadFileConcurrency(), 'actions/upload-artifact');
         this.statusReporter = new status_reporter_1.StatusReporter(10000);
     }
     /**
@@ -5947,8 +5947,8 @@ class UploadHttpClient {
             const artifactUrl = utils_1.getArtifactUrl();
             // use the first client from the httpManager, `keep-alive` is not used so the connection will close immediately
             const client = this.uploadHttpManager.getClient(0);
-            const requestOptions = utils_1.getUploadRequestOptions('application/json', false);
+            const headers = utils_1.getUploadHeaders('application/json', false);
-            const rawResponse = yield client.post(artifactUrl, data, requestOptions);
+            const rawResponse = yield client.post(artifactUrl, data, headers);
             const body = yield rawResponse.readBody();
             if (utils_1.isSuccessStatusCode(rawResponse.message.statusCode) && body) {
                 return JSON.parse(body);
@@ -6060,21 +6060,25 @@ class UploadHttpClient {
             // for creating a new GZip file, an in-memory buffer is used for compression
             if (totalFileSize < 65536) {
                 const buffer = yield upload_gzip_1.createGZipFileInBuffer(parameters.file);
-                let uploadStream;
+                //An open stream is needed in the event of a failure and we need to retry. If a NodeJS.ReadableStream is directly passed in,
+                // it will not properly get reset to the start of the stream if a chunk upload needs to be retried
+                let openUploadStream;
                 if (totalFileSize < buffer.byteLength) {
                     // compression did not help with reducing the size, use a readable stream from the original file for upload
-                    uploadStream = fs.createReadStream(parameters.file);
+                    openUploadStream = () => fs.createReadStream(parameters.file);
                     isGzip = false;
                     uploadFileSize = totalFileSize;
                 }
                 else {
                     // create a readable stream using a PassThrough stream that is both readable and writable
-                    const passThrough = new stream.PassThrough();
+                    openUploadStream = () => {
-                    passThrough.end(buffer);
+                        const passThrough = new stream.PassThrough();
-                    uploadStream = passThrough;
+                        passThrough.end(buffer);
+                        return passThrough;
+                    };
                     uploadFileSize = buffer.byteLength;
                 }
-                const result = yield this.uploadChunk(httpClientIndex, parameters.resourceUrl, uploadStream, 0, uploadFileSize - 1, uploadFileSize, isGzip, totalFileSize);
+                const result = yield this.uploadChunk(httpClientIndex, parameters.resourceUrl, openUploadStream, 0, uploadFileSize - 1, uploadFileSize, isGzip, totalFileSize);
                 if (!result) {
                     // chunk failed to upload
                     isUploadSuccessful = false;
@@ -6116,7 +6120,7 @@ class UploadHttpClient {
                         failedChunkSizes += chunkSize;
                         continue;
                     }
-                    const result = yield this.uploadChunk(httpClientIndex, parameters.resourceUrl, fs.createReadStream(uploadFilePath, {
+                    const result = yield this.uploadChunk(httpClientIndex, parameters.resourceUrl, () => fs.createReadStream(uploadFilePath, {
                         start,
                         end,
                         autoClose: false
@@ -6146,7 +6150,7 @@ class UploadHttpClient {
      * indicates a retryable status, we try to upload the chunk as well
      * @param {number} httpClientIndex The index of the httpClient being used to make all the necessary calls
      * @param {string} resourceUrl Url of the resource that the chunk will be uploaded to
-     * @param {NodeJS.ReadableStream} data Stream of the file that will be uploaded
+     * @param {NodeJS.ReadableStream} openStream Stream of the file that will be uploaded
      * @param {number} start Starting byte index of file that the chunk belongs to
      * @param {number} end Ending byte index of file that the chunk belongs to
      * @param {number} uploadFileSize Total size of the file in bytes that is being uploaded
@@ -6154,13 +6158,13 @@ class UploadHttpClient {
      * @param {number} totalFileSize Original total size of the file that is being uploaded
      * @returns if the chunk was successfully uploaded
      */
-    uploadChunk(httpClientIndex, resourceUrl, data, start, end, uploadFileSize, isGzip, totalFileSize) {
+    uploadChunk(httpClientIndex, resourceUrl, openStream, start, end, uploadFileSize, isGzip, totalFileSize) {
         return __awaiter(this, void 0, void 0, function* () {
             // prepare all the necessary headers before making any http call
-            const requestOptions = utils_1.getUploadRequestOptions('application/octet-stream', true, isGzip, totalFileSize, end - start + 1, utils_1.getContentRange(start, end, uploadFileSize));
+            const headers = utils_1.getUploadHeaders('application/octet-stream', true, isGzip, totalFileSize, end - start + 1, utils_1.getContentRange(start, end, uploadFileSize));
             const uploadChunkRequest = () => __awaiter(this, void 0, void 0, function* () {
                 const client = this.uploadHttpManager.getClient(httpClientIndex);
-                return yield client.sendStream('PUT', resourceUrl, data, requestOptions);
+                return yield client.sendStream('PUT', resourceUrl, openStream(), headers);
             });
             let retryCount = 0;
             const retryLimit = config_variables_1.getRetryLimit();
@@ -6238,7 +6242,7 @@ class UploadHttpClient {
      */
     patchArtifactSize(size, artifactName) {
         return __awaiter(this, void 0, void 0, function* () {
-            const requestOptions = utils_1.getUploadRequestOptions('application/json', false);
+            const headers = utils_1.getUploadHeaders('application/json', false);
             const resourceUrl = new url_1.URL(utils_1.getArtifactUrl());
             resourceUrl.searchParams.append('artifactName', artifactName);
             const parameters = { Size: size };
@@ -6246,7 +6250,7 @@ class UploadHttpClient {
             core.debug(`URL is ${resourceUrl.toString()}`);
             // use the first client from the httpManager, `keep-alive` is not used so the connection will close immediately
             const client = this.uploadHttpManager.getClient(0);
-            const response = yield client.patch(resourceUrl.toString(), data, requestOptions);
+            const response = yield client.patch(resourceUrl.toString(), data, headers);
             const body = yield response.readBody();
             if (utils_1.isSuccessStatusCode(response.message.statusCode)) {
                 core.debug(`Artifact ${artifactName} has been successfully uploaded, total size in bytes: ${size}`);
@@ -6726,7 +6730,7 @@ const http_manager_1 = __webpack_require__(452);
 const config_variables_1 = __webpack_require__(401);
 class DownloadHttpClient {
     constructor() {
-        this.downloadHttpManager = new http_manager_1.HttpManager(config_variables_1.getDownloadFileConcurrency());
+        this.downloadHttpManager = new http_manager_1.HttpManager(config_variables_1.getDownloadFileConcurrency(), 'actions/download-artifact');
         // downloads are usually significantly faster than uploads so display status information every second
         this.statusReporter = new status_reporter_1.StatusReporter(1000);
     }
@@ -6738,8 +6742,8 @@ class DownloadHttpClient {
             const artifactUrl = utils_1.getArtifactUrl();
             // use the first client from the httpManager, `keep-alive` is not used so the connection will close immediately
             const client = this.downloadHttpManager.getClient(0);
-            const requestOptions = utils_1.getDownloadRequestOptions('application/json');
+            const headers = utils_1.getDownloadHeaders('application/json');
-            const response = yield client.get(artifactUrl, requestOptions);
+            const response = yield client.get(artifactUrl, headers);
             const body = yield response.readBody();
             if (utils_1.isSuccessStatusCode(response.message.statusCode) && body) {
                 return JSON.parse(body);
@@ -6760,8 +6764,8 @@ class DownloadHttpClient {
             resourceUrl.searchParams.append('itemPath', artifactName);
             // use the first client from the httpManager, `keep-alive` is not used so the connection will close immediately
             const client = this.downloadHttpManager.getClient(0);
-            const requestOptions = utils_1.getDownloadRequestOptions('application/json');
+            const headers = utils_1.getDownloadHeaders('application/json');
-            const response = yield client.get(resourceUrl.toString(), requestOptions);
+            const response = yield client.get(resourceUrl.toString(), headers);
             const body = yield response.readBody();
             if (utils_1.isSuccessStatusCode(response.message.statusCode) && body) {
                 return JSON.parse(body);
@@ -6818,15 +6822,16 @@ class DownloadHttpClient {
             let retryCount = 0;
             const retryLimit = config_variables_1.getRetryLimit();
             const destinationStream = fs.createWriteStream(downloadPath);
-            const requestOptions = utils_1.getDownloadRequestOptions('application/json', true, true);
+            const headers = utils_1.getDownloadHeaders('application/json', true, true);
             // a single GET request is used to download a file
             const makeDownloadRequest = () => __awaiter(this, void 0, void 0, function* () {
                 const client = this.downloadHttpManager.getClient(httpClientIndex);
-                return yield client.get(artifactLocation, requestOptions);
+                return yield client.get(artifactLocation, headers);
             });
             // check the response headers to determine if the file was compressed using gzip
-            const isGzip = (headers) => {
+            const isGzip = (incomingHeaders) => {
-                return ('content-encoding' in headers && headers['content-encoding'] === 'gzip');
+                return ('content-encoding' in incomingHeaders &&
+                    incomingHeaders['content-encoding'] === 'gzip');
             };
             // Increments the current retry count and then checks if the retry limit has been reached
             // If there have been too many retries, fail so the download stops. If there is a retryAfterValue value provided,
@@ -7302,9 +7307,9 @@ exports.getContentRange = getContentRange;
  * @param {boolean} isKeepAlive is the same connection being used to make multiple calls
  * @param {boolean} acceptGzip can we accept a gzip encoded response
  * @param {string} acceptType the type of content that we can accept
- * @returns appropriate request options to make a specific http call during artifact download
+ * @returns appropriate headers to make a specific http call during artifact download
  */
-function getDownloadRequestOptions(contentType, isKeepAlive, acceptGzip) {
+function getDownloadHeaders(contentType, isKeepAlive, acceptGzip) {
     const requestOptions = {};
     if (contentType) {
         requestOptions['Content-Type'] = contentType;
@@ -7325,7 +7330,7 @@ function getDownloadRequestOptions(contentType, isKeepAlive, acceptGzip) {
     }
     return requestOptions;
 }
-exports.getDownloadRequestOptions = getDownloadRequestOptions;
+exports.getDownloadHeaders = getDownloadHeaders;
 /**
  * Sets all the necessary headers when uploading an artifact
  * @param {string} contentType the type of content being uploaded
@@ -7334,9 +7339,9 @@ exports.getDownloadRequestOptions = getDownloadRequestOptions;
  * @param {number} uncompressedLength the original size of the content if something is being uploaded that has been compressed
  * @param {number} contentLength the length of the content that is being uploaded
  * @param {string} contentRange the range of the content that is being uploaded
- * @returns appropriate request options to make a specific http call during artifact upload
+ * @returns appropriate headers to make a specific http call during artifact upload
  */
-function getUploadRequestOptions(contentType, isKeepAlive, isGzip, uncompressedLength, contentLength, contentRange) {
+function getUploadHeaders(contentType, isKeepAlive, isGzip, uncompressedLength, contentLength, contentRange) {
     const requestOptions = {};
     requestOptions['Accept'] = `application/json;api-version=${getApiVersion()}`;
     if (contentType) {
@@ -7359,9 +7364,9 @@ function getUploadRequestOptions(contentType, isKeepAlive, isGzip, uncompressedL
     }
     return requestOptions;
 }
-exports.getUploadRequestOptions = getUploadRequestOptions;
+exports.getUploadHeaders = getUploadHeaders;
-function createHttpClient() {
+function createHttpClient(userAgent) {
-    return new http_client_1.HttpClient('action/artifact', [
+    return new http_client_1.HttpClient(userAgent, [
         new auth_1.BearerCredentialHandler(config_variables_1.getRuntimeToken())
     ]);
 }

package-lock.json

@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@actions/artifact": {
-      "version": "0.3.1",
+      "version": "0.3.3",
-      "resolved": "https://registry.npmjs.org/@actions/artifact/-/artifact-0.3.1.tgz",
+      "resolved": "https://registry.npmjs.org/@actions/artifact/-/artifact-0.3.3.tgz",
-      "integrity": "sha512-czRvOioOpuvmF/qDevfVVpZeBt7pjYlrnmM1+tRuCpKJxjWFYgi5MIW7TfscyupXPvtJz9jIxMjvxy9Eug1QEA==",
+      "integrity": "sha512-sKC1uA5p6064C6Qypmmt6O8iKlpDyMTfqqDlS4/zfJX1Hs8NbbzPLLN81RpewuJPWQNnroeF52w4VCWypbSNaA==",
       "dev": true,
       "requires": {
         "@actions/core": "^1.2.1",
@@ -2627,9 +2627,9 @@
       }
     },
     "tmp-promise": {
-      "version": "2.0.2",
+      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/tmp-promise/-/tmp-promise-2.0.2.tgz",
+      "resolved": "https://registry.npmjs.org/tmp-promise/-/tmp-promise-2.1.1.tgz",
-      "integrity": "sha512-zl71nFWjPKW2KXs+73gEk8RmqvtAeXPxhWDkTUoa3MSMkjq3I+9OeknjF178MQoMYsdqL730hfzvNfEkePxq9Q==",
+      "integrity": "sha512-Z048AOz/w9b6lCbJUpevIJpRpUztENl8zdv1bmAKVHimfqRFl92ROkmT9rp7TVBnrEw2gtMTol/2Cp2S2kJa4Q==",
       "dev": true,
       "requires": {
         "tmp": "0.1.0"

package.json

@@ -28,7 +28,7 @@
   },
   "homepage": "https://github.com/actions/download-artifact#readme",
   "devDependencies": {
-    "@actions/artifact": "^0.3.1",
+    "@actions/artifact": "^0.3.3",
     "@actions/core": "^1.2.4",
     "@types/node": "^12.12.6",
     "@typescript-eslint/parser": "^2.30.0",