Initial commit of SqlTools Service API

ServiceHost/Session/ProfilePaths.cs

@@ -0,0 +1,109 @@
+//
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+//
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+
+namespace Microsoft.PowerShell.EditorServices.Session
+{
+    /// <summary>
+    /// Provides profile path resolution behavior relative to the name
+    /// of a particular PowerShell host.
+    /// </summary>
+    public class ProfilePaths
+    {
+        #region Constants
+
+        /// <summary>
+        /// The file name for the "all hosts" profile.  Also used as the
+        /// suffix for the host-specific profile filenames.
+        /// </summary>
+        public const string AllHostsProfileName = "profile.ps1";
+
+        #endregion
+
+        #region Properties
+
+        /// <summary>
+        /// Gets the profile path for all users, all hosts.
+        /// </summary>
+        public string AllUsersAllHosts { get; private set; }
+
+        /// <summary>
+        /// Gets the profile path for all users, current host.
+        /// </summary>
+        public string AllUsersCurrentHost { get; private set; }
+
+        /// <summary>
+        /// Gets the profile path for the current user, all hosts.
+        /// </summary>
+        public string CurrentUserAllHosts { get; private set; }
+
+        /// <summary>
+        /// Gets the profile path for the current user and host.
+        /// </summary>
+        public string CurrentUserCurrentHost { get; private set; }
+
+        #endregion
+
+        #region Public Methods
+
+        /// <summary>
+        /// Creates a new instance of the ProfilePaths class.
+        /// </summary>
+        /// <param name="hostProfileId">
+        /// The identifier of the host used in the host-specific X_profile.ps1 filename.
+        /// </param>
+        /// <param name="baseAllUsersPath">The base path to use for constructing AllUsers profile paths.</param>
+        /// <param name="baseCurrentUserPath">The base path to use for constructing CurrentUser profile paths.</param>
+        public ProfilePaths(
+            string hostProfileId,
+            string baseAllUsersPath,
+            string baseCurrentUserPath)
+        {
+            this.Initialize(hostProfileId, baseAllUsersPath, baseCurrentUserPath);
+        }
+
+        private void Initialize(
+            string hostProfileId,
+            string baseAllUsersPath,
+            string baseCurrentUserPath)
+        {
+            string currentHostProfileName =
+                string.Format(
+                    "{0}_{1}",
+                    hostProfileId,
+                    AllHostsProfileName);
+
+            this.AllUsersCurrentHost = Path.Combine(baseAllUsersPath, currentHostProfileName);
+            this.CurrentUserCurrentHost = Path.Combine(baseCurrentUserPath, currentHostProfileName);
+            this.AllUsersAllHosts = Path.Combine(baseAllUsersPath, AllHostsProfileName);
+            this.CurrentUserAllHosts = Path.Combine(baseCurrentUserPath, AllHostsProfileName);
+        }
+
+        /// <summary>
+        /// Gets the list of profile paths that exist on the filesystem.
+        /// </summary>
+        /// <returns>An IEnumerable of profile path strings to be loaded.</returns>
+        public IEnumerable<string> GetLoadableProfilePaths()
+        {
+            var profilePaths =
+                new string[]
+                {
+                    this.AllUsersAllHosts,
+                    this.AllUsersCurrentHost,
+                    this.CurrentUserAllHosts,
+                    this.CurrentUserCurrentHost
+                };
+
+            return profilePaths.Where(p => File.Exists(p));
+        }
+
+        #endregion
+    }
+}
+