ipfs git rehost script powershell edition

ipfs-git-rehost.ps1

Param( 
  [Bool]$unpack = $false,
  [string]$existing = "",
  [Parameter(Mandatory=$true,ValueFromPipeline=$true)][string]$GitRepo,
  [string]$name = ""
)

function New-TemporaryDirectory {
    $parent = [System.IO.Path]::GetTempPath()
    [string] $name = [System.Guid]::NewGuid()
    New-Item -ItemType Directory -Path (Join-Path $parent $name)
}

function Unpack-GitObjects
{
    if(Test-Path ".\objects\pack\*.pack") 
    {
        echo "Unpacking..."
        Move-Item ".\objects\pack\*.pack" "."
        Remove-Item ".\objects\pack\*.idx" -Force
        $files = @(Get-ChildItem *.pack)
        foreach ($file in $files) {
            #workarround because powershell and piping dont want to work for me
            cmd.exe "/c git unpack-objects < $file"

            Remove-Item $file -Force
        }
    }
}

function Pack-GitObjects
{
    echo "Packing..."
    git repack -a -d --depth=250 --window=250
    $files = @(Get-ChildItem ".\objects\pack\*.pack")
    foreach ($file in $files) {
        $newfile = (join-path $File.DirectoryName $file.BaseName) + ".keep"
        echo $null >> $newfile
    }
}
function Get-Existing-Ipfs-Git 
{
    echo "Getting packs from $existing..."
    $existing_str = $existing + "/objects/pack/"
    $ipfs_pack_directory_contents = (ipfs ls "$existing_str") -split '[\n ]'
    $pack_files = $ipfs_pack_directory_contents -imatch ".pack"
    $idx_files = $ipfs_pack_directory_contents -imatch ".idx"
    $keep_files = $ipfs_pack_directory_contents -imatch ".keep"
    $files_array = $pack_files + $idx_files + $keep_files
    foreach($file in $files_array)
    {
        $full_file_path = $existing_str + $file
        $full_repo_path = $ipfs_repo.FullName + "/objects/pack/" + $file
        echo "writing $full_file_path to $full_repo_path"
        cmd.exe "/c ipfs cat $full_file_path > $full_repo_path"
    }
}

if($name.CompareTo("") -eq 0)
{
    $name = (Get-Item $GitRepo).BaseName
}

$newdirectory = New-TemporaryDirectory
$ipfs_tohost = $newdirectory.FullName + "\tohost"
$ipfs_repo = New-Item -ItemType Directory -Path ($ipfs_tohost + "\$name")

echo ""
echo "Rehosting: $name"
echo ""
#clone repo into bare repo
git clone --bare "$GitRepo" "$ipfs_repo"
#cd into repo
pushd $ipfs_repo


if ($LastExitCode -ne 0) {
    throw "Could not clone '$GitRepo'"
}
if($existing.CompareTo("") -ne 0)
{
    if($existing.Contains("/ipfs/") -eq $true)
    {
    Get-Existing-Ipfs-Git
    }
    if($existing.Contains("/ipfs/") -eq $false)
    {
        throw "Bad --existing argument '$existing'\nIt should start with '/ipfs/'"
    }
}

if($unpack -eq $false)
{
    Pack-GitObjects
}
if($unpack -eq $true)
{
    Unpack-GitObjects
}



echo "Updating server info..."
git update-server-info 

echo "Adding to IPFS..."
$ipfs_hash =(ipfs add -Q -r --pin=false "$ipfs_tohost")

popd

Remove-Item $newdirectory -Force -Recurse


echo "done."
echo ""
echo "Repo rehosted at:"
echo ""
echo "  https://ipfs.io/ipfs/$ipfs_hash/$name"
echo ""
echo "You can clone it with:"
echo ""
echo "  git clone https://ipfs.io/ipfs/$ipfs_hash/$name"
echo ""