From b0a5068f6d8ec06db4488b4b981d39f476d3abf6 Mon Sep 17 00:00:00 2001
From: Jason Song <i@wolfogre.com>
Date: Thu, 16 Feb 2023 23:16:46 +0800
Subject: [PATCH] fix: don't override env (#1629)

---
 pkg/runner/run_context.go | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/pkg/runner/run_context.go b/pkg/runner/run_context.go
index bfd090c..24acfe1 100644
--- a/pkg/runner/run_context.go
+++ b/pkg/runner/run_context.go
@@ -186,9 +186,11 @@ func (rc *RunContext) startHostEnvironment() common.Executor {
 			}
 		}
 		for _, env := range os.Environ() {
-			i := strings.Index(env, "=")
-			if i > 0 {
-				rc.Env[env[0:i]] = env[i+1:]
+			if k, v, ok := strings.Cut(env, "="); ok {
+				// don't override
+				if _, ok := rc.Env[k]; !ok {
+					rc.Env[k] = v
+				}
 			}
 		}