fix getpunk script for windows

getpunk.cmd

@@ -898,6 +898,8 @@ if ($matches.count) {
 
 #<powershell-payload>
 
+#powershell -Command "Invoke-WebRequest -Uri 'https://www.gitea1.intx.com.au/jn/punkshell/raw/branch/master/getpunk.cmd' -OutFile 'getpunk.cmd'; Start-Process 'getpunk.cmd' -NoNewWindow -Wait"
+
 #todo - support either fossil or git
 
 #check if git available
@@ -977,7 +979,7 @@ if ($contentcount -eq 0) {
         $effectively_empty = 1
     }
 }
-if ($effectively_empty) {
+if (-not($effectively_empty)) {
     if (-not(Test-Path -Path (Join-Path -Path $punkfolder -ChildPath ".git") -PathType Container)) {
         Write-Host "The folder $punkfolder contains other items, and it does not appear to be a git project root."
         Write-Host "Please place this script in an empty folder which is to be the punkshell base folder."

src/scriptapps/getpunk.ps1

@@ -1,4 +1,6 @@
 
+#powershell -Command "Invoke-WebRequest -Uri 'https://www.gitea1.intx.com.au/jn/punkshell/raw/branch/master/getpunk.cmd' -OutFile 'getpunk.cmd'; Start-Process 'getpunk.cmd' -NoNewWindow -Wait"
+
 #todo - support either fossil or git
 
 #check if git available
@@ -78,7 +80,7 @@ if ($contentcount -eq 0) {
         $effectively_empty = 1
     }
 }
-if ($effectively_empty) {
+if (-not($effectively_empty)) {
     if (-not(Test-Path -Path (Join-Path -Path $punkfolder -ChildPath ".git") -PathType Container)) {
         Write-Host "The folder $punkfolder contains other items, and it does not appear to be a git project root."
         Write-Host "Please place this script in an empty folder which is to be the punkshell base folder."