Merge pull request #1317 from OmniSharp/feature/omnisharp-home

allow setting a custom OmniSharp home directory

CHANGELOG.md

@@ -1,6 +1,9 @@
 # Changelog
 All changes to the project will be documented in this file.
 
+## [1.32.7] - not yet released
+* It's now possible to override the default location of OmniSharp's global folder (%USERPROFILE%\.omnisharp or ~/.omnisharp.) with an OMNISHARPHOME environment variable (PR: [#1317](https://github.com/OmniSharp/omnisharp-roslyn/pull/1317)) 
+
 ## [1.32.6] - 2018-10-02
 * Fixed a bug where virtual C# documents would not get promoted to be a part of a project. (PR: [#1306](https://github.com/OmniSharp/omnisharp-roslyn/pull/1306)).
 * Added MinFilterLength to configure the number of characters a user must type in for FindSymbolRequest command to return any results (default is 0 to preserve existing behavior). Additionally added MaxItemsToReturn for configuring maximum number of items returned by the FindSymbolsRequestAPI.(PR: [#1284](https://github.com/OmniSharp/omnisharp-roslyn/pull/1284)).

src/OmniSharp.Host/Services/OmniSharpEnvironment.cs

@@ -8,12 +8,9 @@ public class OmniSharpEnvironment : IOmniSharpEnvironment
     {
         public string TargetDirectory { get; }
         public string SharedDirectory { get; }
-
         public string SolutionFilePath { get; }
-
         public int HostProcessId { get; }
         public LogLevel LogLevel { get; }
-
         public string[] AdditionalArguments { get; }
 
         public OmniSharpEnvironment(
@@ -45,9 +42,11 @@ public OmniSharpEnvironment(
             LogLevel = logLevel;
             AdditionalArguments = additionalArguments;
 
+            // First look at OMNISHARPHOME to allow users to set custom location, then
             // On Windows: %USERPROFILE%\.omnisharp\omnisharp.json
             // On Mac/Linux: ~/.omnisharp/omnisharp.json
             var root =
+                Environment.GetEnvironmentVariable("OMNISHARPHOME") ??
                 Environment.GetEnvironmentVariable("USERPROFILE") ??
                 Environment.GetEnvironmentVariable("HOME");