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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);
}
}
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