From f52db1c509032b79b49add73c18613d52a05ebc6 Mon Sep 17 00:00:00 2001
From: Josh Bleecher Snyder <josh@tailscale.com>
Date: Thu, 29 Jul 2021 14:31:19 -0700
Subject: [PATCH] [tailscale1.18] cmd/dist: stamp git commit into
 runtime.Version value

Temporary fix until golang/go#37475 is done.

(cherry picked from commit ba893049237408d6b551e0fd415cb0986fa79823)

Change-Id: I204f03bc62c6f2295a8bc66d3f0bb2132153bc27
---
 src/cmd/dist/build.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cmd/dist/build.go b/src/cmd/dist/build.go
index d37c3f83efb4d..4687de5d82672 100644
--- a/src/cmd/dist/build.go
+++ b/src/cmd/dist/build.go
@@ -377,6 +377,9 @@ func findgoversion() string {
 					b = "builder " + hostType
 				}
 			}
+			if isGitRepo() {
+				b += "-ts" + chomp(run(goroot, CheckExit, "git", "log", "-n", "1", "--format=format:%h", "HEAD"))
+			}
 			return b
 		}
 	}