cmd/internal/cmd/base: add pass args

cmd/internal/base/pass.go

@@ -0,0 +1,72 @@
+package base
+
+import (
+	"flag"
+	"fmt"
+)
+
+type stringValue struct {
+	p    *PassArgs
+	name string
+}
+
+func (p *stringValue) String() string {
+	return ""
+}
+
+func (p *stringValue) Set(v string) error {
+	p.p.Args = append(p.p.Args, fmt.Sprintf("-%v=%v", p.name, v))
+	return nil
+}
+
+type boolValue struct {
+	p    *PassArgs
+	name string
+}
+
+func (p *boolValue) String() string {
+	return ""
+}
+
+func (p *boolValue) Set(v string) error {
+	p.p.Args = append(p.p.Args, fmt.Sprintf("-%v=%v", p.name, v))
+	return nil
+}
+
+func (p *boolValue) IsBoolFlag() bool {
+	return true
+}
+
+type PassArgs struct {
+	Args []string
+	Flag *flag.FlagSet
+}
+
+func (p *PassArgs) Var(names ...string) {
+	for _, name := range names {
+		p.Flag.Var(&stringValue{p: p, name: name}, name, "")
+	}
+}
+
+func (p *PassArgs) Bool(names ...string) {
+	for _, name := range names {
+		p.Flag.Var(&boolValue{p: p, name: name}, name, "")
+	}
+}
+
+func NewPassArgs(flag *flag.FlagSet) *PassArgs {
+	p := &PassArgs{Flag: flag}
+	return p
+}
+
+func PassBuildFlags(cmd *Command) *PassArgs {
+	p := NewPassArgs(&cmd.Flag)
+	p.Bool("n", "x")
+	p.Bool("a")
+	p.Bool("linkshared", "race", "msan", "asan",
+		"trimpath", "work")
+	p.Var("p", "asmflags", "compiler", "buildmode",
+		"gcflags", "gccgoflags", "installsuffix",
+		"ldflags", "pkgdir", "tags", "toolexec", "buildvcs")
+	return p
+}

cmd/internal/build/build.go

@@ -50,7 +50,8 @@ func init() {
 	Cmd.Run = runCmd
 }
 
-func runCmd(_ *base.Command, args []string) {
+func runCmd(cmd *base.Command, args []string) {
+	pass := base.PassBuildFlags(cmd)
 	err := flag.Parse(args)
 	if err != nil {
 		log.Panicln("parse input arguments failed:", err)
@@ -85,6 +86,7 @@ func runCmd(_ *base.Command, args []string) {
 		}
 		confCmd.Flags = []string{"-o", output}
 	}
+	confCmd.Flags = append(confCmd.Flags, pass.Args...)
 	build(proj, conf, confCmd)
 }