From a99d5a724b61ab88cc2f8b0b0bf623d2069e137d Mon Sep 17 00:00:00 2001
From: Rebecca Stambler <rstambler@golang.org>
Date: Fri, 7 Jun 2019 15:55:45 -0400
Subject: [PATCH] internal/lsp: add a Version constant

This change will allow users in $GOPATH mode to have some
semblance of a gopls version.

Change-Id: I1b490d18fdf7550c54d56653ae500dc4dc25ee3b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/181238
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
---
 internal/lsp/debug/info.1.11.go | 2 +-
 internal/lsp/debug/info.1.12.go | 4 ++--
 internal/lsp/debug/info.go      | 3 +++
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/internal/lsp/debug/info.1.11.go b/internal/lsp/debug/info.1.11.go
index b29a1570..68932d7b 100644
--- a/internal/lsp/debug/info.1.11.go
+++ b/internal/lsp/debug/info.1.11.go
@@ -12,5 +12,5 @@ import (
 )
 
 func printBuildInfo(w io.Writer, verbose bool, mode PrintMode) {
-	fmt.Fprintf(w, "no module information, gopls not built with go 1.11 or earlier\n")
+	fmt.Fprintf(w, "version %s, built in $GOPATH mode", Version)
 }
diff --git a/internal/lsp/debug/info.1.12.go b/internal/lsp/debug/info.1.12.go
index 70856f6c..f857f1be 100644
--- a/internal/lsp/debug/info.1.12.go
+++ b/internal/lsp/debug/info.1.12.go
@@ -14,7 +14,7 @@ import (
 
 func printBuildInfo(w io.Writer, verbose bool, mode PrintMode) {
 	if info, ok := debug.ReadBuildInfo(); ok {
-		fmt.Fprintf(w, "%v\n", info.Path)
+		fmt.Fprintf(w, "%v %v\n", info.Path, Version)
 		printModuleInfo(w, &info.Main, mode)
 		if verbose {
 			for _, dep := range info.Deps {
@@ -22,7 +22,7 @@ func printBuildInfo(w io.Writer, verbose bool, mode PrintMode) {
 			}
 		}
 	} else {
-		fmt.Fprintf(w, "no module information, gopls not built in module mode\n")
+		fmt.Fprintf(w, "version %s, built in $GOPATH mode", Version)
 	}
 }
 
diff --git a/internal/lsp/debug/info.go b/internal/lsp/debug/info.go
index 4173a91c..8f2bf7d2 100644
--- a/internal/lsp/debug/info.go
+++ b/internal/lsp/debug/info.go
@@ -19,6 +19,9 @@ const (
 	HTML
 )
 
+// Version is a manually-updated mechanism for tracking versions.
+const Version = "v0.0.1-20190607+alpha"
+
 // This writes the version and environment information to a writer.
 func PrintVersionInfo(w io.Writer, verbose bool, mode PrintMode) {
 	if !verbose {