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Adding support for Lancache #565

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merged 2 commits into from
Jan 3, 2025
Merged

Adding support for Lancache #565

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e9a5abe
Adding support for Lancache with a new optional flag.
tpill90 Nov 8, 2024
f567a63
Adding log message for when the lancache has been detected.
tpill90 Jan 3, 2025
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2 changes: 1 addition & 1 deletion DepotDownloader/DepotDownloader.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,6 @@
</PackageReference>
<PackageReference Include="protobuf-net" Version="3.2.45" />
<PackageReference Include="QRCoder" Version="1.6.0" />
<PackageReference Include="SteamKit2" Version="3.0.0" />
<PackageReference Include="SteamKit2" Version="3.0.1" />
</ItemGroup>
</Project>
19 changes: 19 additions & 0 deletions DepotDownloader/Program.cs
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Expand Up @@ -11,6 +11,7 @@
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using SteamKit2;
using SteamKit2.CDN;

namespace DepotDownloader
{
Expand Down Expand Up @@ -118,6 +119,23 @@ static async Task<int> Main(string[] args)

ContentDownloader.Config.VerifyAll = HasParameter(args, "-verify-all") || HasParameter(args, "-verify_all") || HasParameter(args, "-validate");
ContentDownloader.Config.MaxServers = GetParameter(args, "-max-servers", 20);

if (HasParameter(args, "-use-lancache"))
{
await Client.DetectLancacheServerAsync();
if (Client.UseLancacheServer)
{
Console.WriteLine("Detected Lancache server! Downloads will be directed through the Lancache.");

// Increasing the number of concurrent downloads when the cache is detected since the downloads will likely
// be served much faster than over the internet. Steam internally has this behavior as well.
if (!HasParameter(args, "-max-downloads"))
{
ContentDownloader.Config.MaxDownloads = 25;
}
}
}

ContentDownloader.Config.MaxDownloads = GetParameter(args, "-max-downloads", 8);
ContentDownloader.Config.MaxServers = Math.Max(ContentDownloader.Config.MaxServers, ContentDownloader.Config.MaxDownloads);
ContentDownloader.Config.LoginID = HasParameter(args, "-loginid") ? GetParameter<uint>(args, "-loginid") : null;
Expand Down Expand Up @@ -435,6 +453,7 @@ static void PrintUsage()
Console.WriteLine(" -max-servers <#> - maximum number of content servers to use. (default: 20).");
Console.WriteLine(" -max-downloads <#> - maximum number of chunks to download concurrently. (default: 8).");
Console.WriteLine(" -loginid <#> - a unique 32-bit integer Steam LogonID in decimal, required if running multiple instances of DepotDownloader concurrently.");
Console.WriteLine(" -use-lancache - forces downloads over the local network via a Lancache instance.");
}

static void PrintVersion(bool printExtra = false)
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1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -88,6 +88,7 @@ Parameter | Description
`-max-servers <#>` | maximum number of content servers to use. (default: 20).
`-max-downloads <#>` | maximum number of chunks to download concurrently. (default: 8).
`-loginid <#>` | a unique 32-bit integer Steam LogonID in decimal, required if running multiple instances of DepotDownloader concurrently.
`-use-lancache` | forces downloads over the local network via a Lancache instance
`-V` or `--version` | print version and runtime

## Frequently Asked Questions
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