getting cli abstractions to compile locally by adding system to environment reference

Author: aishwaryabh

src/Cli/Abstractions/Environment/EnvironmentProvider.cs

@@ -4,7 +4,6 @@
 // Note that this file is copied from: https://github.com/dotnet/sdk/blob/4a81a96a9f1bd661592975c8269e078f6e3f18c9/src/Cli/Microsoft.DotNet.Cli.Utils/EnvironmentProvider.cs
 // Once the dotnet cli utils package is in a published consumable state, we will migrate over to use that
 
-using System;
 using Azure.Functions.Cli.Abstractions.Extensions;
 using System.Runtime.InteropServices;
 
@@ -15,7 +14,7 @@ public class EnvironmentProvider : IEnvironmentProvider
         private static char[] s_pathSeparator = new char[] { Path.PathSeparator };
         private static char[] s_quote = new char[] { '"' };
         private IEnumerable<string>? _searchPaths;
-        private readonly Lazy<string> _userHomeDirectory = new(() => Environment.GetEnvironmentVariable("HOME") ?? string.Empty);
+        private readonly Lazy<string> _userHomeDirectory = new(() => System.Environment.GetEnvironmentVariable("HOME") ?? string.Empty);
         private IEnumerable<string>? _executableExtensions;
 
         public IEnumerable<string> ExecutableExtensions
@@ -25,7 +24,7 @@ public IEnumerable<string> ExecutableExtensions
                 if (_executableExtensions == null)
                 {
                     _executableExtensions = RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
-                        ? Environment.GetEnvironmentVariable("PATHEXT")?
+                        ? System.Environment.GetEnvironmentVariable("PATHEXT")?
                             .Split(';')
                             .Select(e => e.ToLower().Trim('"')) ?? [string.Empty]
                         : [string.Empty];
@@ -43,7 +42,7 @@ private IEnumerable<string> SearchPaths
                 {
                     var searchPaths = new List<string> { AppContext.BaseDirectory };
 
-                    searchPaths.AddRange(Environment
+                    searchPaths.AddRange(System.Environment
                         .GetEnvironmentVariable("PATH")?
                         .Split(s_pathSeparator)
                         .Select(p => p.Trim(s_quote))
@@ -116,12 +115,12 @@ public EnvironmentProvider(
 
         public string? GetEnvironmentVariable(string name)
         {
-            return Environment.GetEnvironmentVariable(name);
+            return System.Environment.GetEnvironmentVariable(name);
         }
 
         public bool GetEnvironmentVariableAsBool(string name, bool defaultValue)
         {
-            var str = Environment.GetEnvironmentVariable(name);
+            var str = System.Environment.GetEnvironmentVariable(name);
             if (string.IsNullOrEmpty(str))
             {
                 return defaultValue;
@@ -144,17 +143,17 @@ public bool GetEnvironmentVariableAsBool(string name, bool defaultValue)
 
         public string? GetEnvironmentVariable(string variable, EnvironmentVariableTarget target)
         {
-            return Environment.GetEnvironmentVariable(variable, target);
+            return System.Environment.GetEnvironmentVariable(variable, target);
         }
 
         public void SetEnvironmentVariable(string variable, string value, EnvironmentVariableTarget target)
         {
-            Environment.SetEnvironmentVariable(variable, value, target);
+            System.Environment.SetEnvironmentVariable(variable, value, target);
         }
 
         public int? GetEnvironmentVariableAsNullableInt(string variable)
         {
-            if (Environment.GetEnvironmentVariable(variable) is string strValue && int.TryParse(strValue, out int intValue))
+            if (System.Environment.GetEnvironmentVariable(variable) is string strValue && int.TryParse(strValue, out int intValue))
             {
                 return intValue;
             }

src/Cli/Abstractions/Extensions/AnsiExtension.cs

@@ -11,7 +11,7 @@ public static class AnsiExtensions
         private static readonly Lazy<bool> _xtermEnabled = new(
             () =>
             {
-                var environment = Environment.GetEnvironmentVariable("TERM");
+                var environment = System.Environment.GetEnvironmentVariable("TERM");
                 if (!string.IsNullOrWhiteSpace(environment))
                 {
                     return environment.IndexOf("xterm", StringComparison.OrdinalIgnoreCase) >= 0;

src/Cli/Abstractions/Logging/AnsiConsole.cs

@@ -18,7 +18,7 @@ private AnsiConsole(TextWriter writer)
             OriginalForegroundColor = Console.ForegroundColor;
             _boldRecursion = ((int)OriginalForegroundColor & Light) != 0 ? 1 : 0;
 
-            _ansiEnabled = string.IsNullOrWhiteSpace(Environment.GetEnvironmentVariable("NO_COLOR"));
+            _ansiEnabled = string.IsNullOrWhiteSpace(System.Environment.GetEnvironmentVariable("NO_COLOR"));
         }
 
         private int _boldRecursion;

src/Cli/Abstractions/ProcessReaper.cs

@@ -56,8 +56,8 @@ public void NotifyProcessStarted()
                 // but nested jobs are transparently implemented with respect to the Job Objects API.
                 // Note: Windows 8.1 and later may report as Windows 8 (see https://docs.microsoft.com/en-us/windows/desktop/sysinfo/operating-system-version).
                 //       However, for the purpose of this check that is still sufficient.
-                if (Environment.OSVersion.Version.Major > 6 ||
-                    (Environment.OSVersion.Version.Major == 6 && Environment.OSVersion.Version.Minor >= 2))
+                if (System.Environment.OSVersion.Version.Major > 6 ||
+                    (System.Environment.OSVersion.Version.Major == 6 && System.Environment.OSVersion.Version.Minor >= 2))
                 {
                     _job = AssignProcessToJobObject(_process.Handle);
                 }
@@ -153,7 +153,7 @@ private void HandleProcessExit(object? sender, EventArgs args)
             // If SIGTERM was ignored by the target, then we'll still wait
             _process.WaitForExit();
 
-            Environment.ExitCode = _process.ExitCode;
+            System.Environment.ExitCode = _process.ExitCode;
         }
 
         private static bool SetKillOnJobClose(IntPtr job, bool value)