fix: do not default goos/goarch/goarm if targets is provided (#1789)

* fix: do not default goos/goarch/goarm if targets is provided

Signed-off-by: Carlos Alexandro Becker <caarlos0@gmail.com>

* test: fixed

Signed-off-by: Carlos Alexandro Becker <caarlos0@gmail.com>

internal/builders/golang/build.go

@@ -41,19 +41,19 @@ func (*Builder) WithDefaults(build config.Build) config.Build {
 	if build.Main == "" {
 		build.Main = "."
 	}
-	if len(build.Goos) == 0 {
-		build.Goos = []string{"linux", "darwin"}
-	}
-	if len(build.Goarch) == 0 {
-		build.Goarch = []string{"amd64", "386"}
-	}
-	if len(build.Goarm) == 0 {
-		build.Goarm = []string{"6"}
-	}
 	if len(build.Ldflags) == 0 {
 		build.Ldflags = []string{"-s -w -X main.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.Date}} -X main.builtBy=goreleaser"}
 	}
 	if len(build.Targets) == 0 {
+		if len(build.Goos) == 0 {
+			build.Goos = []string{"linux", "darwin"}
+		}
+		if len(build.Goarch) == 0 {
+			build.Goarch = []string{"amd64", "386"}
+		}
+		if len(build.Goarm) == 0 {
+			build.Goarm = []string{"6"}
+		}
 		build.Targets = matrix(build)
 	}
 	if build.GoBinary == "" {

internal/builders/golang/build_test.go

@@ -71,6 +71,21 @@ func TestWithDefaults(t *testing.T) {
 			},
 			goBinary: "go",
 		},
+		"custom targets": {
+			build: config.Build{
+				ID:     "foo3",
+				Binary: "foo",
+				Targets: []string{
+					"linux_386",
+					"darwin_amd64",
+				},
+			},
+			targets: []string{
+				"linux_386",
+				"darwin_amd64",
+			},
+			goBinary: "go",
+		},
 	} {
 		t.Run(name, func(tt *testing.T) {
 			var config = config.Project{