Picard pre-commit hook using PowerShell

pre-commit

#!/bin/sh

exec pwsh.exe -NoProfile -ExecutionPolicy Bypass -File ./.git/hooks/pre-commit.ps1
exit $?

pre-commit.ps1

#!/usr/bin/env pwsh

$ErrorActionPreference = "Stop"

$PyFiles = git diff --cached --name-only `
  | Select-String -Pattern ".*\.py$" `
  | Select-String -NotMatch -Pattern "^picard/ui/ui_.*\.py$", "^picard/resources\.py$", "^picard/const/__init__\.py$"

If ($PyFiles) {
  isort --check-only --diff --quiet $PYFILES
  If ($LastExitCode -ne 0) {
    exit $LastExitCode
  }
  flake8 $PYFILES
  exit $LastExitCode
}

exit 0