From b9f0ef1c559df7c6923ddbf0f681b79cca2925e3 Mon Sep 17 00:00:00 2001
From: Ettore Di Giacinto <mudler@sabayon.org>
Date: Sat, 23 Jan 2021 22:01:29 +0100
Subject: [PATCH] Implement ImageExists in the img backend

---
 pkg/compiler/backend/simpleimg.go | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/pkg/compiler/backend/simpleimg.go b/pkg/compiler/backend/simpleimg.go
index 6ba7da75..caea55bb 100644
--- a/pkg/compiler/backend/simpleimg.go
+++ b/pkg/compiler/backend/simpleimg.go
@@ -18,6 +18,7 @@ package backend
 import (
 	"os"
 	"os/exec"
+	"strings"
 
 	"github.com/mudler/luet/pkg/compiler"
 	. "github.com/mudler/luet/pkg/logger"
@@ -106,10 +107,16 @@ func (*SimpleImg) ImageAvailable(imagename string) bool {
 	return imageAvailable(imagename)
 }
 
+// ImageExists check if the given image is available locally
 func (*SimpleImg) ImageExists(imagename string) bool {
-	// NOOP: not implemented
-	// TODO: Since img doesn't have an inspect command,
-	// we need to parse the ls output manually
+	cmd := exec.Command("img", "ls")
+	out, err := cmd.Output()
+	if err != nil {
+		return false
+	}
+	if strings.Contains(string(out), imagename) {
+		return true
+	}
 	return false
 }