epm play: add powershell

play.d/powershell.sh

+#!/bin/sh
+
+PKGNAME=powershell
+SUPPORTEDARCHES="x86_64"
+VERSION="$2"
+DESCRIPTION="Microsoft PowerShell from the official site"
+
+. $(dirname $0)/common.sh
+
+[ "$VERSION" = "*" ] && VERSION="[0-9]*" || VERSION="$VERSION-1"
+
+reponame=$(epm print info --repo-name)
+vendor=$(epm print info -s)
+version=$(epm print info --base-version)
+
+# Strict supported list
+case $(epm print info -e) in
+    Ubuntu/*)
+        BASEURL="https://packages.microsoft.com/ubuntu/$version/prod/pool/main/p/powershell/"
+        file="powershell_$VERSION.deb_amd64.deb"
+        ;;
+    *)
+        PKGURL="https://github.com/PowerShell/PowerShell/releases"
+        file="powershell-$VERSION.rh.x86_64.rpm"
+        ;;
+esac
+
+PKGURL=$(epm tool eget --list --latest $BASEURL $file) || fatal "Can't get package URL"
+
+repack=''
+[ "$(epm print info -s)" = "alt" ] && repack='--repack'
+
+epm install $repack "$PKGURL" || exit
+