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Install Erlang via command line
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# | |
# Check if Erlang is installed | |
# | |
$erlangkey = Get-ChildItem HKLM:\SOFTWARE\Wow6432Node\Ericsson\Erlang -ErrorAction SilentlyContinue | |
if ( $erlangkey -eq $null ) { | |
Write-Host "Erlang not found, need to install it" | |
Start-Process -Wait otp_win64_R16B03.exe /S | |
} | |
# | |
# Determine Erlang home path | |
# | |
$ERLANG_HOME = ((Get-ChildItem HKLM:\SOFTWARE\Wow6432Node\Ericsson\Erlang)[0] | Get-ItemProperty).'(default)' | |
[System.Environment]::SetEnvironmentVariable("ERLANG_HOME", $ERLANG_HOME, "Machine") | |
# | |
# Add Erlang to the path if needed | |
# | |
$system_path_elems = [System.Environment]::GetEnvironmentVariable("PATH", "Machine").Split(";") | |
if (!$system_path_elems.Contains("%ERLANG_HOME%\bin") -and !$system_path_elems.Contains("$ERLANG_HOME\bin")) | |
{ | |
Write-Host "Adding erlang to path" | |
$newpath = [System.String]::Join(";", $system_path_elems + "$ERLANG_HOME\bin") | |
[System.Environment]::SetEnvironmentVariable("PATH", $newpath, "Machine") | |
} |
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