Add io

.eslintrc.json

@@ -26,8 +26,6 @@
     "@typescript-eslint/no-array-constructor": "error",
     "@typescript-eslint/no-empty-interface": "error",
     "@typescript-eslint/no-explicit-any": "error",
-    "no-extra-parens": "off",
-    "@typescript-eslint/no-extra-parens": "error",
     "@typescript-eslint/no-extraneous-class": "error",
     "@typescript-eslint/no-for-in-array": "error",
     "@typescript-eslint/no-inferrable-types": "error",

.gitignore

@@ -1,3 +1,4 @@
 node_modules/
 packages/*/node_modules/
-packages/*/lib/
+packages/*/lib/
+packages/*/__tests__/_temp/

packages/io/README.md

@@ -0,0 +1,49 @@
+# `@actions/io`
+
+> Core functions for cli filesystem scenarios
+
+## Usage
+
+```
+/**
+ * Copies a file or folder.
+ * 
+ * @param     source    source path
+ * @param     dest      destination path
+ * @param     options   optional. See CopyOptions.
+ */
+export function cp(source: string, dest: string, options?: CopyOptions): Promise<void>
+
+/**
+ * Remove a path recursively with force
+ * 
+ * @param     path     path to remove
+ */
+export function rmRF(path: string): Promise<void>
+
+/**
+ * Make a directory.  Creates the full path with folders in between
+ * 
+ * @param     p       path to create
+ * @returns   Promise<void>
+ */
+export function mkdirP(p: string): Promise<void>
+
+/**
+ * Moves a path.
+ *
+ * @param     source    source path
+ * @param     dest      destination path
+ * @param     options   optional. See CopyOptions.
+ */
+export function mv(source: string, dest: string, options?: CopyOptions): Promise<void>
+
+/**
+ * Returns path of a tool had the tool actually been invoked.  Resolves via paths.
+ * 
+ * @param     tool              name of the tool
+ * @param     options           optional. See WhichOptions.
+ * @returns   Promise<string>   path to tool
+ */
+export function which(tool: string, options?: WhichOptions): Promise<string>
+```