50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
package main
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import (
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"fmt"
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"go/build"
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"os"
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"strings"
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)
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var packages map[string]string = make(map[string]string)
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func generate_target(srcdir string, pkgdir string, prefix string, ctx build.Context) string {
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pkg, _ := ctx.ImportDir(srcdir+pkgdir, 0)
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name := pkg.Name
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var deps []string
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for _, imp := range pkg.Imports {
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if strings.HasPrefix(imp, prefix) {
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imp = strings.TrimPrefix(imp, prefix)
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if packages[imp] == "" {
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packages[imp] = generate_target(srcdir, imp, prefix, ctx)
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}
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deps = append(deps, "$(LIBS_"+packages[imp]+")")
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}
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}
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if pkgdir != "" {
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fmt.Printf("SRCDIR_%s := $(SRCDIR)%s/\n", name, pkgdir)
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} else {
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fmt.Printf("SRCDIR_%s := $(SRCDIR)\n", name)
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}
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fmt.Printf("SRC_%s := $(addprefix $(SRCDIR_%s), %s)\n", name, name, strings.Join(pkg.GoFiles, " "))
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fmt.Printf("DEPS_%s := %s\n", name, strings.Join(deps, " "))
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if pkgdir != "" {
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fmt.Printf("OBJ_%s := $(LIBDIR)/%s.o\n", name, pkgdir)
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fmt.Printf("LIB_%s := $(LIBDIR)/%s.a\n", name, pkgdir)
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fmt.Printf("LIBS_%s := $(LIB_%s) $(DEPS_%s)\n", name, name, name)
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fmt.Printf("$(OBJ_%s) : $(SRC_%s) $(DEPS_%s)\n", name, name, name)
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fmt.Printf("\t@mkdir -p $(dir $@)\n")
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fmt.Printf("\t$(GOC) $(GOFLAGS) -c -o $@ $(SRC_%s)\n", name)
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}
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return name
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}
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func main() {
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srcdir := os.Args[1]
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prefix := os.Args[2]
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ctx := build.Default
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ctx.CgoEnabled = false
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generate_target(srcdir, "", prefix, ctx)
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}
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