refactor(shared/fs): add lazyRemove function

Author: ije

shared/fs.ts

@@ -1,6 +1,6 @@
 import { ensureDir, path } from '../deps.ts'
 
-/* check whether or not the given path exists as a directory */
+/* check whether or not the given path exists as a directory. */
 export async function existsDir(path: string): Promise<boolean> {
     try {
         const fi = await Deno.lstat(path)
@@ -16,7 +16,7 @@ export async function existsDir(path: string): Promise<boolean> {
     }
 }
 
-/* check whether or not the given path exists as a directory */
+/* check whether or not the given path exists as a directory. */
 export function existsDirSync(path: string) {
     try {
         const fi = Deno.lstatSync(path)
@@ -32,7 +32,7 @@ export function existsDirSync(path: string) {
     }
 }
 
-/* check whether or not the given path exists as regular file */
+/* check whether or not the given path exists as regular file. */
 export async function existsFile(path: string): Promise<boolean> {
     try {
         const fi = await Deno.lstat(path)
@@ -48,7 +48,7 @@ export async function existsFile(path: string): Promise<boolean> {
     }
 }
 
-/* check whether or not the given path exists as regular file */
+/* check whether or not the given path exists as regular file. */
 export function existsFileSync(path: string) {
     try {
         const fi = Deno.lstatSync(path)
@@ -64,9 +64,21 @@ export function existsFileSync(path: string) {
     }
 }
 
-/** ensure and write a text file */
+/** ensure and write a text file. */
 export async function ensureTextFile(name: string, content: string): Promise<void> {
     const dir = path.dirname(name)
     await ensureDir(dir)
     await Deno.writeTextFile(name, content)
 }
+
+/** remove the file if it exists. */
+export async function lazyRemove(name: string): Promise<void> {
+    try {
+        await Deno.remove(name)
+    } catch (err) {
+        if (err instanceof Deno.errors.NotFound) {
+            return
+        }
+        return Promise.reject(err)
+    }
+}