feat: initial project commit

src/Process/Builders/EnvironmentVariablesBuilder.cs

@@ -0,0 +1,43 @@
+namespace Geekeey.Extensions.Process;
+
+/// <summary>
+/// Builder that helps configure environment variables.
+/// </summary>
+public sealed class EnvironmentVariablesBuilder
+{
+	private readonly Dictionary<string, string?> _vars = new(StringComparer.Ordinal);
+
+	/// <summary>
+	/// Sets an environment variable with the specified name to the specified value.
+	/// </summary>
+	public EnvironmentVariablesBuilder Set(string name, string? value)
+	{
+		_vars[name] = value;
+		return this;
+	}
+
+	/// <summary>
+	/// Sets multiple environment variables from the specified sequence of key-value pairs.
+	/// </summary>
+	public EnvironmentVariablesBuilder Set(IEnumerable<KeyValuePair<string, string?>> variables)
+	{
+		foreach (var (name, value) in variables)
+		{
+			Set(name, value);
+		}
+
+		return this;
+	}
+
+	/// <summary>
+	/// Sets multiple environment variables from the specified dictionary.
+	/// </summary>
+	public EnvironmentVariablesBuilder Set(IReadOnlyDictionary<string, string?> variables)
+		=> Set((IEnumerable<KeyValuePair<string, string?>>)variables);
+
+	/// <summary>
+	/// Builds the resulting environment variables.
+	/// </summary>
+	public IReadOnlyDictionary<string, string?> Build()
+		=> new Dictionary<string, string?>(_vars, _vars.Comparer);
+}