goreleaser/internal/pipe/partial/partial.go

package partial

import (
	"os"
	"runtime"

	"github.com/charmbracelet/x/exp/ordered"
	"github.com/goreleaser/goreleaser/pkg/context"
)

type Pipe struct{}

func (Pipe) String() string                 { return "partial" }
func (Pipe) Skip(ctx *context.Context) bool { return !ctx.Partial }

func (Pipe) Run(ctx *context.Context) error {
	ctx.PartialTarget = getFilter()
	return nil
}

func getFilter() string {
	goos := ordered.First(os.Getenv("GGOOS"), os.Getenv("GOOS"), runtime.GOOS)
	goarch := ordered.First(os.Getenv("GGOARCH"), os.Getenv("GOARCH"), runtime.GOARCH)
	return goos + "_" + goarch
}