install.ps

# install Episteme with PowerShell


# check if chocolatey is installed with powershell
$chocoInstalled = (Get-Command "choco" -ErrorAction SilentlyContinue) -ne $null

# if not, install chocolatey
if ($chocoInstalled -eq $null) {
    Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))
}

# install dependencies with chocolatey

$gitInstalled = (Get-Command "git" -ErrorAction SilentlyContinue) -ne $null
if ($gitInstalled -eq $null) {
    choco install git -y
}

$githubInstalled = (Get-Command "git-hub" -ErrorAction SilentlyContinue) -ne $null
if ($githubInstalled -eq $null) {
    choco install git-hub -y
}

$emacsInstalled = (Get-Command "emacs" -ErrorAction SilentlyContinue) -ne $null
if ($emacsInstalled -eq $null) {
    choco install emacs -y
}

$sharpkeysInstalled = (Get-Command "sharpkeys" -ErrorAction SilentlyContinue) -ne $null
if ($sharpkeysInstalled -eq $null) {
    choco install sharpkeys -y
}

$mingwInstalled = (Get-Command "mingw32-make" -ErrorAction SilentlyContinue) -ne $null
if ($mingwInstalled -eq $null) {
    choco install mingw32-make -y
}

$epistemePath = '$env:USERPROFILE\Documents\GitHub\episteme';

# check that episteme is not already installed
$epistemeExists = (Get-Item -Path $epistemePath -ErrorAction SilentlyContinue) -ne $null
if ($epistemeExists -eq $null) {
    gh repo clone apoptosis/episteme
}

# add episteme to global windows PATH
# episteme is installed to Documents/GitHub/episteme
$oldpath = (Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH).path

# check if episteme is already in the path
$epistemeInPath = $oldpath -match $epistemePath
if ($epistemeInPath -eq $null) {
    $newpath = $oldpath + ';' + $epistemePath
    Set-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH -Value $newpath
}