Many PowerShell users utilize code as shown below to determine where the running script resides:<\/p>\n
function get-scriptdirectory{
$invocation=(get-variable MyInvocation -Scope 1).Value
Split-Path $invocation.myinvocation.path
}<\/p>\n
Unfortunately, if the script runs inside a custom host, such as PrimalScript’s internal host, for a good number of debuggers and the SAPIEN PowerShell host from the PrimalForms packager, the MyInvocation variable contains an empty path member.<\/p>\n
There is no documented way to set MyInvocation from a custom host and any attempts contacting Microsoft in this matter only resulted in confirmation that any attempt to do so would be overwritten anyway.<\/p>\n
It seems unreasonable to expect the PowerShell team to change the API anytime soon. And even then, changing the current behavior might prove undesirable since it could potentially break existing scripts.<\/p>\n
That of course leaves everyone implementing a custom host with a dilemma. The SAPIEN PowerShell hosts now all contain a variable called $HostInvocation which has the same interface as MyInvocation and provides the desired information.<\/p>\n
So if you are running your script inside any SAPIEN PowerShell host you can use code like this to determine where your script is:<\/p>\n
function get-scriptdirectory{
if($hostinvocation -ne null) {
Split-Path $hostinvocation.MyCommand.path
}
else {
$invocation=(get-variable MyInvocation -Scope 1).Value
Split-Path $invocation.myinvocation.path
}
}<\/p>\n","protected":false},"excerpt":{"rendered":"
Many PowerShell users utilize code as shown below to determine where the running script resides: function get-scriptdirectory{ $invocation=(get-variable MyInvocation -Scope 1).Value Split-Path $invocation.myinvocation.path} Unfortunately, if the script runs inside a custom host, such as PrimalScript’s internal host, for a good number of debuggers and the SAPIEN PowerShell host from the PrimalForms packager, the MyInvocation variable […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[283,25],"tags":[521,522,28],"class_list":["post-1628","post","type-post","status-publish","format-standard","hentry","category-howto","category-windows-powershell","tag-hosting","tag-myinvocation","tag-powershell"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t