Fix #251 Support the --chmod flag in COPY instructions

Signed-off-by: Remy Suen <[email protected]>

CHANGELOG.md

@@ -5,6 +5,7 @@ All notable changes to this project will be documented in this file.
 ### Added
 - textDocument/publishDiagnostics
   - support `--chmod` flag in ADD instructions added in Docker CE 20.10 ([#250](https://github.com/rcjsuen/dockerfile-language-server-nodejs/issues/250))
+  - support `--chmod` flag in COPY instructions added in Docker CE 20.10 ([#251](https://github.com/rcjsuen/dockerfile-language-server-nodejs/issues/251))
 
 ## [0.2.2] - 2020-01-07
 ### Fixed

test/server.test.ts

@@ -1819,6 +1819,31 @@ describe("Dockerfile LSP Tests", function() {
 		});
 	});
 
+	it("issue #251", function (finished) {
+		this.timeout(5000);
+		sendNotification("textDocument/didOpen", {
+			textDocument: {
+				languageId: "dockerfile",
+				version: 1,
+				uri: "uri://dockerfile/251.txt",
+				text: "FROM scratch\nCOPY --chmod=644 . ."
+			}
+		});
+
+		lspProcess.once("message", (json) => {
+			if (json.method === "textDocument/publishDiagnostics") {
+				assert.equal(json.params.uri, "uri://dockerfile/251.txt");
+				assert.equal(json.params.diagnostics.length, 0);
+				sendNotification("textDocument/didClose", {
+					textDocument: {
+						uri: "uri://dockerfile/251.txt"
+					}
+				});
+				finished();
+			}
+		});
+	});
+
 	function testInvalidFile(request: string, assertionCallback: Function) {
 		it(request, function(finished) {
 			this.timeout(5000);