1 files changed, 48 insertions, 0 deletions
diff --git a/src/Model/TaskfileVars.cs b/src/Model/TaskfileVars.cs
new file mode 100644
index 0000000..c0e6cdc
--- /dev/null
+++ b/src/Model/TaskfileVars.cs
@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+
+namespace VNLib.Tools.Build.Executor.Model
+{
+    /// <summary>
+    /// Represents a collection of taskfile "environment" variables
+    /// </summary>
+    public sealed class TaskfileVars
+    {
+        private readonly Dictionary<string, string> vars;
+
+        public TaskfileVars()
+        {
+            vars = new(StringComparer.OrdinalIgnoreCase);
+        }
+
+        private TaskfileVars(IEnumerable<KeyValuePair<string, string>> values)
+        {
+            vars = new(values, StringComparer.OrdinalIgnoreCase);
+        }
+
+        /// <summary>
+        /// Gets all variables as a readonly dictionary
+        /// </summary>
+        /// <returns>The collection of environment variables</returns>
+        public IReadOnlyDictionary<string, string> GetVariables() => vars;
+
+        /// <summary>
+        /// Sets a taskfile environment variable
+        /// </summary>
+        /// <param name="key">The variable name</param>
+        /// <param name="value">The optional variable value</param>
+        public void Set(string key, string? value) => vars[key] = value ?? string.Empty;
+
+        /// <summary>
+        /// Removes a taskfile environment variable
+        /// </summary>
+        /// <param name="key">The name of the variable to remove</param>
+        public void Remove(string key) => vars.Remove(key);
+
+        /// <summary>
+        /// Clones the current taskfile variables into an independent instance
+        /// </summary>
+        /// <returns>The new <see cref="TaskfileVars"/> instance</returns>
+        public TaskfileVars Clone() => new (vars);
+    }
+}
+\ No newline at end of file