mimic node's intended behavior with weird paths

When removing any path that has `..` or `.` as path portions, call
`path.normalize` on the path before attempting to process it.

When removing the path `''`, throw a `stat ENOENT` error.

When removing `.`, replace with `process.cwd()` and proceed as normal.

Also, add support for deleting `file:` URLs and Buffer paths, which are
normalized to strings for the benefit of older Node versions.

Glob patters must still be normal `strings`.

This mirrors the behavior of node, once nodejs/node#61968 lands.

Closes: #342
Fixes: #326
Re: nodejs/node#61958
Credit: @abhu85, @RajeshKumar11, @isaacs

Author: isaacs

.github/workflows/ci.yml

@@ -52,7 +52,3 @@ jobs:
 
       - name: Run Tests
         run: npm test -- -c -t0
-        env:
-          RIMRAF_TEST_START_CHAR: a
-          RIMRAF_TEST_END_CHAR: f
-          RIMRAF_TEST_DEPTH: 5

CHANGELOG.md

@@ -1,3 +1,10 @@
+# 6.2
+
+- Handle `''`, `'..'` and `'.'` paths the same as Node's intended
+  behavior.
+- Add support for `file:` URL objects and Buffers. (Glob patterns
+  still have to be normal `string` types.)
+
 # 6.1
 
 - Move to native `fs/promises` usage instead of promisifying

README.md

@@ -82,6 +82,11 @@ something was omitted from the removal via a `filter` option.
 This first parameter is a path or array of paths. The second
 argument is an options object.
 
+If interpreted as `glob` patterns, then the paths must be
+normal `string` values. If not glob pattern matching, then you
+may also pass in `file:` URL objects, or `Buffer` objects, which
+will be turned into string paths in the normal ways.
+
 Options:
 
 - `preserveRoot`: If set to boolean `false`, then allow the