cmd_build.go

package main

import (
	"errors"
	"flag"
	"fmt"
	"io"
	"os"
	"strings"
)

var buildHelp = &helpNode{
	cmd:      "build",
	synopsis: "Build various targets of kernel.",
	subs: []helpSubNode{
		{"image", func(w io.Writer) {
			cmdTitle(w, true, "build image")
			cmdUsage(w, "Build kernel images for current profile.\n"+
				"Equal to '$kbdashboard make uImage'.\n")
		}},
		{"modules", func(w io.Writer) {
			cmdTitle(w, false, "build modules")
			cmdUsage(w, "Build and install modules for current profile.\n"+
				"Eqaul to '$ make modules' then '$ make modules_install'.\n")
		}},
		{"dtb", func(w io.Writer) {
			cmdTitle(w, false, "build dtb")
			cmdUsage(w, "Build 'dtb' file.\n"+
				"-e: build extra DTBs 'extra_dtbs' addtionally.\n")
		}},
	},
}

func buildImageHandler(args []string, data interface{}) (int, error) {
	p, _, err := getCurrentProfile(gConfig)
	if err != nil {
		return 0, err
	}
	printCmd("build image", p.Name)
	return 0, makeKernel(p, p.Target, os.Stdout, true)
}

func buildModulesHandler(args []string, data interface{}) (int, error) {
	p, _, err := getCurrentProfile(gConfig)
	if err != nil {
		return 0, err
	}
	printCmd("build modules", p.Name)

	err = makeKernel(p, "modules", os.Stdout, true)
	if err != nil {
		return 0, err
	}

	return 0, makeKernel(p, "modules_install", os.Stdout, true)
}

func buildDtbHandler(args []string, data interface{}) (int, error) {
	p, _, err := getCurrentProfile(gConfig)
	if err != nil {
		return 0, err
	}

	extra := false
	flagSet := flag.NewFlagSet("buildDtb", flag.ExitOnError)
	flagSet.BoolVar(&extra, "e", false, "build extra DTBs.")
	flagSet.Parse(args)

	s := "build DTB"
	if extra {
		s += " with extra DTBs"
	}
	printCmd(s, p.Name)

	if err := makeKernel(p, p.DTB, os.Stdout, true); err != nil {
		return 0, err
	}

	if extra {
		dtbs := strings.Fields(p.ExtraDTBs)
		for _, dtb := range dtbs {
			if dtb == p.DTB {
				return 0, errors.New(fmt.Sprintf("duplicate '%s' in 'extra_dtbs'", dtb))
			}
			if err := makeKernel(p, dtb, os.Stdout, true); err != nil {
				return 0, err
			}
		}
	}

	return 0, nil
}