5 files changed, 28 insertions, 11 deletions
diff --git a/std/archive/tar.ts b/std/archive/tar.ts
index 6bc2b92d0..699b982a9 100644
--- a/std/archive/tar.ts
+++ b/std/archive/tar.ts
@@ -39,15 +39,15 @@ const ustar = "ustar\u000000";
 class FileReader implements Deno.Reader {
   private file?: Deno.File;
 
-  constructor(private filePath: string, private mode: Deno.OpenMode = "r") {}
+  constructor(private filePath: string) {}
 
   public async read(p: Uint8Array): Promise<number | Deno.EOF> {
     if (!this.file) {
-      this.file = await Deno.open(this.filePath, this.mode);
+      this.file = await Deno.open(this.filePath, { read: true });
     }
     const res = await Deno.read(this.file.rid, p);
     if (res === Deno.EOF) {
-      await Deno.close(this.file.rid);
+      Deno.close(this.file.rid);
       this.file = undefined;
     }
     return res;
diff --git a/std/fs/walk_test.ts b/std/fs/walk_test.ts
index 6a44f5514..b054db4cf 100644
--- a/std/fs/walk_test.ts
+++ b/std/fs/walk_test.ts
@@ -1,4 +1,4 @@
-const { cwd, chdir, makeTempDir, mkdir, open, symlink } = Deno;
+const { cwd, chdir, makeTempDir, mkdir, create, symlink } = Deno;
 const { remove } = Deno;
 import { walk, walkSync, WalkOptions, WalkEntry } from "./walk.ts";
 import { assert, assertEquals, assertThrowsAsync } from "../testing/asserts.ts";
@@ -46,7 +46,7 @@ export async function walkArray(
 }
 
 export async function touch(path: string): Promise<void> {
-  const f = await open(path, "w");
+  const f = await create(path);
   f.close();
 }
 
diff --git a/std/io/util.ts b/std/io/util.ts
index 28688ae91..18ddb4def 100644
--- a/std/io/util.ts
+++ b/std/io/util.ts
@@ -47,6 +47,11 @@ export async function tempFile(
     `${dir}/${opts.prefix || ""}${r}${opts.postfix || ""}`
   );
   await mkdir(path.dirname(filepath), { recursive: true });
-  const file = await open(filepath, "a");
+  const file = await open(filepath, {
+    create: true,
+    read: true,
+    write: true,
+    append: true,
+  });
   return { file, filepath };
 }
diff --git a/std/log/handlers.ts b/std/log/handlers.ts
index eea7f32ff..041f101ed 100644
--- a/std/log/handlers.ts
+++ b/std/log/handlers.ts
@@ -2,6 +2,7 @@
 const { open, openSync, close, renameSync, statSync } = Deno;
 type File = Deno.File;
 type Writer = Deno.Writer;
+type OpenOptions = Deno.OpenOptions;
 import { getLevelByName, LogLevel } from "./levels.ts";
 import { LogRecord } from "./logger.ts";
 import { red, yellow, blue, bold } from "../fmt/colors.ts";
@@ -101,6 +102,7 @@ export class FileHandler extends WriterHandler {
   protected _file!: File;
   protected _filename: string;
   protected _mode: LogMode;
+  protected _openOptions: OpenOptions;
   #encoder = new TextEncoder();
 
   constructor(levelName: string, options: FileHandlerOptions) {
@@ -108,10 +110,17 @@ export class FileHandler extends WriterHandler {
     this._filename = options.filename;
     // default to append mode, write only
     this._mode = options.mode ? options.mode : "a";
+    this._openOptions = {
+      createNew: this._mode === "x",
+      create: this._mode !== "x",
+      append: this._mode === "a",
+      truncate: this._mode !== "a",
+      write: true,
+    };
   }
 
   async setup(): Promise<void> {
-    this._file = await open(this._filename, this._mode);
+    this._file = await open(this._filename, this._openOptions);
     this._writer = this._file;
   }
 
@@ -119,8 +128,9 @@ export class FileHandler extends WriterHandler {
     Deno.writeSync(this._file.rid, this.#encoder.encode(msg + "\n"));
   }
 
-  async destroy(): Promise<void> {
-    await this._file.close();
+  destroy(): Promise<void> {
+    this._file.close();
+    return Promise.resolve();
   }
 }
 
@@ -193,7 +203,7 @@ export class RotatingFileHandler extends FileHandler {
       }
     }
 
-    this._file = openSync(this._filename, this._mode);
+    this._file = openSync(this._filename, this._openOptions);
     this._writer = this._file;
   }
 }
diff --git a/std/mime/multipart_test.ts b/std/mime/multipart_test.ts
index aa3b7524e..c0cf012ec 100644
--- a/std/mime/multipart_test.ts
+++ b/std/mime/multipart_test.ts
@@ -93,7 +93,9 @@ test(async function multipartMultipartWriter(): Promise<void> {
   const mw = new MultipartWriter(buf);
   await mw.writeField("foo", "foo");
   await mw.writeField("bar", "bar");
-  const f = await open(path.resolve("./mime/testdata/sample.txt"), "r");
+  const f = await open(path.resolve("./mime/testdata/sample.txt"), {
+    read: true,
+  });
   await mw.writeFile("file", "sample.txt", f);
   await mw.close();
   f.close();