I want to use TypeScript as a scripting language for my machine and so I want to be able just to execute TypeScript files directly. There are npm packages like ts-node that do this already but I wanted to have a crack at implementing it myself. So this is the batch file I've come up with so far.

Sometimes it's helpful to exit out of a batch script if there are pending changes to a repo. This is done in batch script in a non intuitive way.

@ECHO OFF
PUSHD %~dp0

SET __HAS_CHANGES=0

REM The loop won't be executed if 'git status -s' doesn't produce any output.
FOR /f "tokens=*" %%i IN ('git status -s') DO ( SET __HAS_CHANGES=1 )

REM Check if the loop was executed and goto EXIT if it was.
IF "%__HAS_CHANGES%" NEQ "0" (
    ECHO There are currently uncommitted changes.
    GOTO EXIT
)

REM Do the work you want to do here.

:EXIT
POPD

Here's a quick one liner to quickly stage all your changes in the current git repo, commit them and then push the commit to origin master branch.

Visual Studio Code allows you specify tasks which can be in a task runner. Most examples I've seen show how to integrate with Javascript task runners such as Gulp. There is no reason why you can't simpley use batch files though.