go-deb/stateWindow.go

// This window, when it's hidden, still exists to the application
// so it can be treated as if it really exists
package main

import (
	"fmt"
	"os"
	"path/filepath"
	"strconv"
	"strings"
	"time"

	"go.wit.com/lib/gadgets"
	"go.wit.com/lib/gui/shell"
	"go.wit.com/log"
)

// This initializes the first window, a group and a button
func makebasicWindow() *gadgets.BasicWindow {
	log.Warn("init basicWindow state")
	basicWindow = gadgets.NewBasicWindow(myGui, "Create .deb files for GO applications")
	basicWindow.Make()
	basicWindow.Custom = func() {
		log.Info("got to close")
		os.Exit(0)
	}

	box1 := basicWindow.Box()
	cBox = newControl(box1)

	vbox := box1.Box().Horizontal()
	group1 := vbox.NewGroup("controls").Horizontal() // Vertical()

	group1.NewButton("go build", func() {
		shell.Run([]string{"go", "build", "-v", "-x"})
	})

	group1.NewButton("read control file", func() {
		cBox.readControlFile()
	})

	group1.NewButton("Make .deb", func() {
		basicWindow.Disable()
		if cBox.buildPackage() {
			log.Info("build worked")
		} else {
			log.Warn("build failed")
		}
		basicWindow.Enable()
	})

	group1.NewButton("open repo", func() {
		cBox.status.Update()
		cBox.status.Toggle()
	})

	return basicWindow
}

func (c *controlBox) buildPackage() bool {
	// TODO: if dirty, set GO111MODULE
	// also, if last tag != version
	if c.status.CheckDirty() {
		os.Setenv("GO111MODULE", "off")
	}
	if shell.Run([]string{"go", "build", "-v", "-x"}) {
		log.Warn("build worked")
	} else {
		log.Warn("build failed")
		return false
	}

	filename := c.Package.String()
	if filename == "" {
		log.Warn("build failed")
		return false
	}
	if !shell.Exists(filename) {
		log.Warn("build failed")
		return false
	}

	arch := c.Architecture.String()
	version := c.Version.String()
	if version == "" {
		version = "0.0.0"
	}

	debname := filename + "_" + version + "_" + arch + ".deb"

	if shell.Exists("files") {
		if !shell.Run([]string{"rm", "-rf", "files"}) {
			log.Warn("rm failed")
			return false
		}
	}
	if shell.Exists("files") {
		log.Warn("rm failed")
		return false
	}
	if !shell.Mkdir("files/DEBIAN") {
		log.Warn("mkdir failed")
		return false
	}
	if !shell.Mkdir("files/usr/bin") {
		log.Warn("mkdir failed")
		return false
	}
	if !shell.Run([]string{"cp", filename, "files/usr/bin"}) {
		log.Warn("cp failed")
		return false
	}
	if !shell.Run([]string{"strip", "files/usr/bin/" + filename}) {
		log.Warn("strip failed")
		return false
	}

	// put the README in there (if missing, generate it?)
	var readme string = ""
	if shell.Exists("README.md") {
		readme = "README.md"
	}

	if shell.Exists("README") {
		readme = "README"
	}

	if readme != "" {
		path := filepath.Join("files/usr/lib/" + filename)
		if !shell.Mkdir(path) {
			log.Warn("mkdir failed")
			return false
		}
		if !shell.Run([]string{"cp", readme, path}) {
			log.Warn("cp failed")
			return false
		}
	}

	if !c.writeFiles() {
		log.Warn("write control file failed")
		return false
	}

	homeDir, err := os.UserHomeDir()
	if err != nil {
		log.Warn("os.UserHomeDir() failed")
		return false
	}

	fulldebname := filepath.Join(homeDir, "incoming", debname)
	shell.Run([]string{"dpkg-deb", "--build", "files", fulldebname})
	if shell.Exists(fulldebname) {
		log.Warn("build worked")
	} else {
		log.Warn("build failed")
		return false
	}
	shell.Run([]string{"dpkg-deb", "-I", fulldebname})
	shell.Run([]string{"dpkg-deb", "-c", fulldebname})
	return true
}

func (c *controlBox) writeFiles() bool {
	cf, err := os.OpenFile("files/DEBIAN/control", os.O_RDWR|os.O_CREATE, 0644)
	if err != nil {
		log.Info("open control file failed", err)
		return false
	}
	fmt.Fprintln(cf, "Package:", c.Package.String())
	fmt.Fprintln(cf, "Source:", c.Source.String())
	fmt.Fprintln(cf, "Version:", c.Version.String())
	fmt.Fprintln(cf, "Architecture:", c.Architecture.String())
	fmt.Fprintln(cf, "Depends:", c.Depends.String())
	fmt.Fprintln(cf, "Build-Depends:", c.BuildDepends.String())
	stamp := time.Now().UTC().Format("2006/01/02 15:04:05 UTC")
	// update to now now despite what the GUI is showing
	fmt.Fprintln(cf, "Package-Build-Date:", stamp)
	fmt.Fprintln(cf, "Git-Tag-Date:", c.tagDate.String())

	fmt.Fprintln(cf, "Maintainer:", c.Maintainer.String())
	desc := c.Description.String()
	parts := strings.Split(desc, "\n")
	fmt.Fprintln(cf, "Description:", strings.Join(parts, "\n "))

	return true
}

// try to guess or figure out the config file values
// if there is not a control file
func (c *controlBox) computeControlValues() bool {
	if c.Package.String() == "" {
		// get the package name from the repo name
		path := c.pathL.String()
		parts := strings.Split(path, "/")
		name := parts[len(parts)-1]
		c.Package.SetText(name)
	}
	if c.Source.String() == "" {
		c.Source.SetText(c.Package.String())
	}
	if c.BuildDepends.String() == "" {
		c.BuildDepends.SetText("golang")
	}
	if c.Recommends.String() == "" {
		c.Recommends.SetText("go-gui-toolkits")
	}
	// TODO: get this from the git log
	if c.Maintainer.String() == "" {
		c.Maintainer.SetText("Jeff Carr <jcarr@wit.com>")
	}
	// TODO: get this from gitea (or gitlab or github, etc)
	// or from the README.md ?
	if c.Description.String() == "" {
		c.Description.SetText("missing control file")
	}
	return true
}

// stamp := time.Now().UTC().Format("2006/01/02 15:04:05 UTC")

func (c *controlBox) getDateStamp(tag string) string {
	_, out := c.status.RunCmd([]string{"git", "log", "-1", "--format=%at", tag})
	out = strings.TrimSpace(out)

	// Convert the string to an integer
	gitTagTimestampInt, err := strconv.ParseInt(out, 10, 64)
	if err != nil {
		fmt.Println("Error converting timestamp:", err)
		return "git tag " + tag + " unknown"
	}

	// Parse the Unix timestamp into a time.Time object
	gitTagDate := time.Unix(gitTagTimestampInt, 0)
	return gitTagDate.UTC().Format("2006/01/02 15:04:05 UTC")
}