From 50236966d0ab891b40291de3c385f12cbaf8126c Mon Sep 17 00:00:00 2001
From: "derks.patrick" <zonkerderks@googlemail.com>
Date: Thu, 15 Apr 2021 18:39:19 +0200
Subject: [PATCH] add function for checking requirements changes

---
 api/tasks/runner.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/api/tasks/runner.go b/api/tasks/runner.go
index f5c5b5ad..e53af43f 100644
--- a/api/tasks/runner.go
+++ b/api/tasks/runner.go
@@ -537,6 +537,20 @@ func (t *task) envVars(home string, pwd string, gitSSHCommand *string) []string
 	return env
 }
 
+func hasRequirementsChanges(requirementsFilePath string, requirementsHashFilePath string) bool {
+	oldFileMD5HashBytes, err := ioutil.ReadFile(requirementsHashFilePath)
+	if err != nil {
+		return true
+	}
+
+	newFileMD5Hash, err := helpers.GetMD5Hash(requirementsFilePath)
+	if err != nil {
+		return true
+	}
+
+	return string(oldFileMD5HashBytes) != newFileMD5Hash
+}
+
 // extractCommandEnvironment unmarshalls a json string, extracts the ENV key from it and returns it as
 // []string where strings are in key=value format
 func extractCommandEnvironment(envJSON string) []string {