Single word is not completed in PowerShell #1847
Description
When I use the Powershell completion in oh-my-posh (JanDeDobbeleer/oh-my-posh#3050), it fails to complete when I want to complete the first word, e.g. con<tab> or com<tab> - should result in config or completion respectively. Instead neither happens.
After a little digging I found that OMP uses this project and that the PowerShell completion might have a bug.
$Values = $Out | ForEach-Object {
#Split the output in name and description
$Name, $Description = $_.Split("`t", 2)
__oh-my-posh_debug "Name: $Name Description: $Description"
# Look for the longest completion so that we can format things nicely
if ($Longest -lt $Name.Length) {
$Longest = $Name.Length
}
# Set the description to a one space string if there is none set.
# This is needed because the CompletionResult does not accept an empty string as argument
if (-Not $Description) {
$Description = " "
}
@{Name = "$Name"; Description = "$Description" }
}When there is only one completion result, which is oddly the case for oh-my-posh __complete con but not for oh-my-posh __complete config ex, then the above code makes $Values a hashtable and not an array, which results in a hidden error down the line, because a hashtable has no Length property.
if (($Directive -band $ShellCompDirectiveNoFileComp) -ne 0 ) {
__oh-my-posh_debug "ShellCompDirectiveNoFileComp is called";
if ($Values.Length -eq 0) {
# Just print an empty string here so the
# shell does not start to complete paths.
# We cannot use CompletionResult here because
# it does not accept an empty string as argument.
""
return
}
}My simple workaround has been forcing $Values to become an array by doing this [Array]$Values in the first code fragment.