refactor(git-provider): Centralise *-GitRepo noun name

src/ModuleCore/Git/GitManager.cs

@@ -52,4 +52,30 @@ public class GitManager
 
 		throw new Exception($"Git repo already registered with the name {registrationName}");
 	}
+
+	public List<GitReg> ListRepos()
+	{
+		return _registrations.Select(x => new GitReg() { Name = x.Value.Name, Location = x.Value.Location }).ToList();
+	}
+
+	public string GetRepo(string? registeredName)
+	{
+		if (string.IsNullOrEmpty(registeredName))
+		{
+			throw new Exception("Name cannot be null");
+		}
+
+		if (_registrations.TryGetValue(registeredName, out var registration))
+		{
+			return registration.Location;
+		}
+
+		throw new Exception($"No git repo has been registered with the name {registeredName}");
+	}
+}
+
+public class GitReg
+{
+	public required string Name { get; set; }
+	public required string Location { get; set; }
 }

src/PowershellModule/Git/Commands/GetGitRepoCommand.cs

@@ -0,0 +1,17 @@
+using System.Management.Automation;
+using ModuleCore.Git;
+
+namespace PowershellModule.Git.Commands;
+
+[Cmdlet(VerbsCommon.Get, GitCommands.GitRepoNoun)]
+public class ListGitRepoCommand : PSCmdlet
+{
+	protected override void BeginProcessing()
+	{
+		var repos = GitManager.Instance.ListRepos();
+
+		WriteObject(repos);
+
+		base.BeginProcessing();
+	}
+}

src/PowershellModule/Git/Commands/GitCommands.cs

@@ -0,0 +1,6 @@
+namespace PowershellModule.Git.Commands;
+
+public class GitCommands
+{
+	public const string GitRepoNoun = "GitRepo";
+}

src/PowershellModule/Git/Commands/NewGitRepoCommand.cs

@@ -6,11 +6,9 @@ using ModuleCore.Git;
 
 namespace PowershellModule.Git.Commands;
 
-[Cmdlet(VerbsCommon.New, Noun)]
+[Cmdlet(VerbsCommon.New, GitCommands.GitRepoNoun)]
 public sealed class NewGitRepoCommand : PSCmdlet
 {
-	private const string Noun = "GitRepo";
-
 	[Parameter(
 		Position = 0,
 		ValueFromPipeline = true,

src/PowershellModule/Git/Commands/SetGitRepoCommand.cs

@@ -4,11 +4,10 @@ using ModuleCore.Git;
 
 namespace PowershellModule.Git.Commands;
 
-[Cmdlet(VerbsCommon.Set, Noun)]
+// TODO: decide if I want to use this verb instead of show. Currently this implementation is under Show-GitRepo
+[Cmdlet(VerbsCommon.Set, GitCommands.GitRepoNoun)]
 public class SetGitRepoCommand : PSCmdlet
 {
-	private const string Noun = "GitRepo";
-
 	public SetGitRepoCommand()
 	{
 		Console.WriteLine($"{nameof(NewGitRepoCommand)} init");

src/PowershellModule/Git/Commands/ShowGitRepoCommand.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Management.Automation;
+using ModuleCore.Git;
+
+namespace PowershellModule.Git.Commands;
+
+[Cmdlet(VerbsCommon.Show, GitCommands.GitRepoNoun)]
+public class ShowGitRepoCommand : PSCmdlet
+{
+	[Parameter(
+		Position = 0,
+		ValueFromPipeline = true,
+		Mandatory = true,
+		HelpMessage = "Reference name for the repo")]
+	public string? Name { get; set; }
+
+	[Parameter(
+		Mandatory = false,
+		HelpMessage = "Changes directory directly instead of using Set-Location")]
+	[Alias("NoSetLocation")]
+	public SwitchParameter NoStack { get; set; }
+
+	protected override void BeginProcessing()
+	{
+		var location = GitManager.Instance.GetRepo(Name);
+
+		// By default instead of doing the same as cd, we instead do pushd so a user can popd straight back to where
+		// they came from.
+		// TODO: incorporate this into the custom prompt when I develop that
+		if (!NoStack)
+		{
+			// Push the current location to the stack
+			// TODO: support named stacks. PowerShell *-Location commands support named stacks, but I don't personally
+			//  use them myself so I haven't implemented them initially. I would like to in the future though, but right
+			//  now it's low value to me.
+			//  https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.management/set-location?view=powershell-7.6#example-4-set-the-current-location-to-a-named-stack
+			SessionState.Path.PushCurrentLocation(null);
+		}
+
+		SessionState.Path.SetLocation(location);
+		base.BeginProcessing();
+	}
+}