/// <inheritdoc/>
public async Task <Connection> ActivateAsync(CancellationToken token)
{
var path = this.optionsModel.RustupPath == string.Empty ? "rustup" : this.optionsModel.RustupPath;
var rustup = new Rustup(path);
var toolchain = this.optionsModel.Toolchain;
var env = await this.MakeEnvironmentAsync(rustup, toolchain);
var directoryPath = this.workspaceService.CurrentWorkspace?.Location ?? string.Empty;
var startInfo = new ProcessStartInfo()
{
FileName = path,
Arguments = $"run {toolchain} rls",
RedirectStandardInput = true,
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = true,
WorkingDirectory = directoryPath,
};
foreach (var pair in env)
{
startInfo.Environment[pair.Key] = pair.Value;
}
var p = Process.Start(startInfo);
return(new Connection(p.StandardOutput.BaseStream, p.StandardInput.BaseStream));
}
/// <inheritdoc/>
public async Task OnLoadedAsync()
{
var rustup = new Rustup(this.optionsModel.RustupPath);
if (!await rustup.IsInstalledAsync())
{
var infoBar = new VsUtilities.InfoBar("could not start the rls: rustup is not installed or not on the path");
await VsUtilities.ShowInfoBarAsync(infoBar, this.serviceProvider);
return;
}
var toolchain = this.optionsModel.Toolchain;
if (!await rustup.HasToolchainAsync(toolchain))
{
var infoBar = new VsUtilities.InfoBar($"configured toolchain {toolchain} is not installed", new VsUtilities.InfoBarButton("Install"));
if (await Utilities.WaitForSingleButtonInfoBarAsync(infoBar, this.serviceProvider))
{
var task = rustup.InstallToolchainAsync(toolchain);
await VsUtilities.CreateTaskAsync($"Installing {toolchain}", this.serviceProvider, task);
if (await task != 0)
{
return;
}
}
else
{
return;
}
}
// Check for necessary rls components
if (!await rustup.HasComponentAsync("rls", toolchain) ||
!await rustup.HasComponentAsync("rust-analysis", toolchain) ||
!await rustup.HasComponentAsync("rust-src", toolchain))
{
if (!await this.InstallComponentsAsync(rustup, toolchain, "rls-preview", "rust-analysis", "rust-src"))
{
var infoBar = new VsUtilities.InfoBar("could not install one of the required rls components");
await VsUtilities.ShowInfoBarAsync(infoBar, this.serviceProvider);
return;
}
}
if (this.StartAsync != null)
{
await this.StartAsync.InvokeAsync(this, EventArgs.Empty);
}
}
public async System.Threading.Tasks.Task OnLoadedAsync()
{
var toolchain = OptionsModel.Toolchain;
if (!await Rustup.HasToolchain(toolchain))
{
var infoBar = new VsUtilities.InfoBar($"configured toolchain {toolchain} is not installed", new VsUtilities.InfoBarButton("Install"));
if (await Utilities.WaitForSingleButtonInfoBarAsync(infoBar))
{
var task = Rustup.InstallToolchain(toolchain).ContinueWith(t => t.Result == 0);
await VsUtilities.CreateTask($"Installing {toolchain}", task);
if (!await task)
{
return;
}
}
else
{
return;
}
}
if (!await Rustup.HasComponent("rls-preview", toolchain))
{
if (!await InstallComponent("rls-preview", toolchain))
{
return;
}
}
if (!await Rustup.HasComponent("rust-analysis", toolchain))
{
if (!await InstallComponent("rust-analysis", toolchain))
{
return;
}
}
if (!await Rustup.HasComponent("rust-src", toolchain))
{
if (!await InstallComponent("rust-src", toolchain))
{
return;
}
}
if (StartAsync != null)
{
await StartAsync.InvokeAsync(this, EventArgs.Empty);
}
}
private async Task <IDictionary <string, string> > MakeEnvironmentAsync(Rustup rustup, string toolchain)
{
var newEnv = new Dictionary <string, string>();
if (Environment.GetEnvironmentVariable("RUST_SRC_PATH") == null)
{
var sysRoot = await this.GetSysRootAsync(rustup, toolchain);
var srcPath = Path.Combine(sysRoot, "lib\\rustlib\\src\\rust\\src");
newEnv["RUST_SRC_PATH"] = srcPath;
}
return(newEnv);
}
private async Task <bool> InstallComponent(string component, string toolchain)
{
var infoBar = new VsUtilities.InfoBar($"component '{component}' is not installed", new VsUtilities.InfoBarButton("Install"));
if (await Utilities.WaitForSingleButtonInfoBarAsync(infoBar))
{
var task = Rustup.InstallComponent(component, toolchain).ContinueWith(t => t.Result == 0);
await VsUtilities.CreateTask($"Installing {component}", task);
return(await task);
}
else
{
return(false);
}
}
private async Task <bool> InstallComponentsAsync(Rustup rustup, string toolchain, params string[] components)
{
VsUtilities.InfoBar infoBar;
if (components.Length == 1)
{
infoBar = new VsUtilities.InfoBar($"component '{components[0]}' is not installed", new VsUtilities.InfoBarButton("Install"));
}
else
{
infoBar = new VsUtilities.InfoBar("required components are not installed", new VsUtilities.InfoBarButton("Install"));
}
if (await Utilities.WaitForSingleButtonInfoBarAsync(infoBar, this.serviceProvider))
{
var task = rustup.InstallComponentsAsync(toolchain, components);
await VsUtilities.CreateTaskAsync($"Installing components", this.serviceProvider, task);
return(await task == 0);
}
else
{
return(false);
}
}
private async Task <string> GetSysRootAsync(Rustup rustup, string toolchain)
{
var result = await rustup.RunAsync("rustc --print sysroot", toolchain);
return(result.Output.Replace("\n", string.Empty).Replace("\r", string.Empty));
}
private async Task <string> GetSysRoot(string toolchain)
{
var(sysRoot, _) = await Rustup.Run("rustc --print sysroot", toolchain);
return(sysRoot.Replace("\n", "").Replace("\r", ""));
}