/// <summary>
/// Adds environment variables that allow the program to make calls back to Zero Install.
/// </summary>
public static IEnvironmentBuilder SetCallbackEnvironmentVariables(this IEnvironmentBuilder builder)
{
void TryAdd(string envName, ProcessStartInfo?startInfo)
{
if (startInfo == null)
{
return;
}
try
{
builder.SetEnvironmentVariable(envName, startInfo.ToCommandLine());
}
catch (FileNotFoundException)
{
// Zero Install may be embedded as a library rather than called as an executable
}
}
TryAdd(ZeroInstallEnvironment.CliName, ProgramUtils.CliStartInfo());
TryAdd(ZeroInstallEnvironment.GuiName, ProgramUtils.GuiStartInfo());
TryAdd(ZeroInstallEnvironment.ExternalFetcherName, ProgramUtils.CliStartInfo(Fetch.Name));
return(builder);
}
