comapre host and target platform

Author: Jaytee-fn

common/common.go

@@ -37,7 +37,6 @@ import (
 	"time"
 	"unicode"
 
-
 	"github.com/coreos/go-semver/semver"
 	"github.com/fatih/color"
 	"github.com/fnproject/cli/config"
@@ -69,7 +68,7 @@ var ShapeMap = map[string][]string{
 	modelsv2.AppShapeGENERICX86ARM: {"linux/amd64", "linux/arm64"},
 }
 
-var TargetPlatformMap = map[string][] string{
+var TargetPlatformMap = map[string][]string{
 	modelsv2.AppShapeGENERICX86:    {"amd64"},
 	modelsv2.AppShapeGENERICARM:    {"arm64"},
 	modelsv2.AppShapeGENERICX86ARM: {"multiarch"},
@@ -525,23 +524,26 @@ func RunBuild(verbose bool, dir, imageName, dockerfile string, buildArgs []strin
 			var mappedArchitectures []string
 			mappedArchitectures = append(mappedArchitectures, arch...)
 			var hostedPlatform = runtime.GOARCH
-			if targetPlatform, ok := TargetPlatformMap[shape]; ok {
-				fmt.Printf("hostedPlatform %v targetPlatform %v", hostedPlatform, targetPlatform)
-				// compare target platform and hosted platform
-				// perform docker buildx if they don't match
-			}
-			if containerEngineType == ContainerEngineType {
-				err := initializeContainerBuilder(containerEngineType, mappedArchitectures)
-				if err != nil {
-					done <- err
-					return
+			if platform, ok := TargetPlatformMap[shape]; ok {
+				targetPlatform := strings.Join(platform," ")
+				if targetPlatform != hostedPlatform {
+					fmt.Println("TargetedPlatform and hostPlatform are not same")
+					if containerEngineType == ContainerEngineType {
+						err := initializeContainerBuilder(containerEngineType, mappedArchitectures)
+						if err != nil {
+							done <- err
+							return
+						}
+					}
+					dockerBuildCmdArgs = buildXDockerCommand(imageName, dockerfile, buildArgs, noCache, mappedArchitectures)
+					// perform cleanup
+					defer cleanupContainerBuilder(containerEngineType)
+				} else {
+					fmt.Println("TargetedPlatform and hostPlatform are same")
+					dockerBuildCmdArgs = buildDockerCommand(imageName, dockerfile, buildArgs, noCache)
 				}
 			}
-			dockerBuildCmdArgs = buildXDockerCommand(imageName, dockerfile, buildArgs, noCache, mappedArchitectures)
-			// perform cleanup
-			defer cleanupContainerBuilder(containerEngineType)
-		} else {
-			dockerBuildCmdArgs = buildDockerCommand(imageName, dockerfile, buildArgs, noCache)
+
 		}
 
 		cmd := exec.Command(containerEngineType, dockerBuildCmdArgs...)