Apply Solomon comments

- Simplify cache id parameter with a field `name`
- Configure GOOS & GOARCH values
- Container image can now be overridden
- Simplify build export

Signed-off-by: Vasek - Tom C <tom.chauveau@epitech.eu>

pkg/universe.dagger.io/go/build.cue

@@ -28,7 +28,11 @@ import (
 
 	container: #Container & {
 		"source": source
-		"env":    env
+		"env": {
+			env
+			GOOS:   os
+			GOARCH: arch
+		}
 		command: {
 			args: [package]
 			flags: {
@@ -39,12 +43,8 @@ import (
 				"-o":       "/output/"
 			}
 		}
+		export: directories: "/output/": _
 	}
 
-	_binary: dagger.#Subdir & {
+	binary: container.export.directories."/output/".contents
-		input: container.output.rootfs
-		path:  "/output"
-	}
-
-	binary: _binary.output
 }

pkg/universe.dagger.io/go/container.cue

@@ -8,27 +8,20 @@ import (
 
 // A standalone go environment to run go command
 #Container: {
-	// Go version to use
+	// Container app name
-	version: *#DefaultVersion | string
+	name: *"go_builder" | string
 
 	// Source code
 	source: dagger.#FS
 
-	// Configure caching
-	cache: {
-		id: *"go_build" | string
-	}
-
 	// Use go image
-	_image: #Image & {
+	_image: #Image
-		"version": version
-	}
 
 	_sourcePath: "/src"
 	_cachePath:  "/root/.cache/gocache"
 
 	docker.#Run & {
-		input:   _image.output
+		input:   *_image.output | docker.#Image
 		workdir: "/src"
 		command: name: "go"
 		mounts: {
@@ -38,7 +31,7 @@ import (
 			}
 			"go assets cache": {
 				contents: dagger.#CacheDir & {
-					id: "\(cache.id)_assets"
+					id: "\(name)_assets"
 				}
 				dest: _cachePath
 			}

pkg/universe.dagger.io/go/test/container.cue

@@ -3,6 +3,7 @@ package go
 import (
 	"dagger.io/dagger"
 	"universe.dagger.io/go"
+	"universe.dagger.io/alpine"
 )
 
 dagger.#Plan & {
@@ -13,5 +14,17 @@ dagger.#Plan & {
 			source: _source
 			command: args: ["version"]
 		}
+
+		overide: {
+			base: alpine.#Build & {
+				packages: go: _
+			}
+
+			command: go.#Container & {
+				input:  base.output
+				source: _source
+				command: args: ["version"]
+			}
+		}
 	}
 }