Warn when powershell script is run as admin

Fixes #163

HACKING.md

@@ -69,3 +69,7 @@ yaml files: `ghcup-<yaml-ver>.yaml`.
    Most of the `Version` parameters to functions had to be replaced with
    that and ensured the logic is consistent for cross and non-cross
    installs.
+2. This refactor added windows support wrt [#130](https://gitlab.haskell.org/haskell/ghcup-hs/-/issues/130).
+   The major changes here were switching `hpath` library out for `filepath`/`directory` (sadly) and
+   introducing a non-unix way of handling processes via the `process` library. It also introduced considerable
+   amounts of CPP wrt file handling, installation etc.

bootstrap-haskell.ps1

@@ -150,6 +150,15 @@ function Exec
 
 $ErrorActionPreference = 'Stop'
 
+$elevated = ([Security.Principal.WindowsPrincipal] `
+ [Security.Principal.WindowsIdentity]::GetCurrent()
+).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
+
+if ($elevated) {
+  Print-Msg -color Yellow -msg ('This script should not be run as administrator/elevated. Waiting 10s before continuing anyway...')
+  Start-Sleep -s 10
+}
+
 $GhcupBasePrefixEnv = [System.Environment]::GetEnvironmentVariable('GHCUP_INSTALL_BASE_PREFIX', 'user')
 
 if ($GhcupBasePrefixEnv) {

ghcup-0.0.5.yaml

@@ -2060,8 +2060,8 @@ ghcupDownloads:
         A_ARM64:
           Linux_UnknownLinux:
             unknown_versioning:
-              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/aarch64-linux-ghcup-0.1.15.2
-              dlHash: d91b7a5416f292f2cf813824eb419f76ad9976d258cee3581123cb6eb01db9a7
+              dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/aarch64-linux-ghcup-0.1.15.2-r2
+              dlHash: d67702f7c9e3586e85ed7c1bd09b7544da55bd1d3b4a961a07018348f78cf76b
           Darwin:
             unknown_versioning:
               dlUri: https://downloads.haskell.org/~ghcup/0.1.15.2/aarch64-apple-darwin-ghcup-0.1.15.2