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path: root/main.go
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package main

import (
	"embed"
	"errors"
	"os"
	"path/filepath"
	"time"

	"go.wit.com/lib/cobol"
	"go.wit.com/lib/config"
	"go.wit.com/lib/gui/prep"
	"go.wit.com/lib/gui/shell"
	"go.wit.com/lib/protobuf/zoopb"
	"go.wit.com/log"
)

// sent via -ldflags
var VERSION string
var BUILDTIME string

// used for shell auto completion
var ARGNAME string = "mirrors" // todo: get this from $0 ?

//go:embed resources/*
var resources embed.FS

func main() {
	me = new(mainType)
	me.sh = prep.Bash3(&argv) // add support for bash autocomplete with go-arg

	// read in protobuf file
	me.pb = zoopb.NewPackages()
	me.pb.Filename = "/home/mirrors/wit/mirrors.wit.com.pb"
	if err := me.pb.Load(); err != nil {
		if argv.Force {
			config.Save(me.pb)
		} else {
			me.sh.BadExit("no config found. use --force to create one", err)
		}
	}

	if me.pb.BaseDir != "/home/mirrors/wit" {
		me.pb.Filename = "/home/mirrors/wit/mirrors.wit.com.pb"
		me.pb.BaseDir = "/home/mirrors/wit"
		me.pb.Save()
		panic("missing /home/mirrors/wit as BaseDir")
	}

	if err := os.Chdir(me.pb.BaseDir); err != nil {
		me.sh.BadExit("no '"+me.pb.BaseDir+"' directory", err)
	}

	if !shell.IsDir("pool/") {
		me.sh.BadExit("no "+filepath.Join(me.pb.BaseDir, "pool")+" directory", errors.New("mount -a ? missing wit/pool/"))
	}

	if me.sh.Cmd == "" {
		// default behavior when no argv
		s := log.Sprintf("You have %d packages in %s", me.pb.Len(), me.pb.BaseDir)
		me.sh.GoodExit(s)
	}

	// default handling of argv subcommands
	var s string
	var err error
	if argv.Incoming != nil {
		s, err = doIncoming(me.pb)
	}

	if argv.Walk != nil {
		s, err = doWalk()
	}

	if argv.List != nil {
		s, err = doList()
	}

	if argv.Verify != nil {
		s, err = doVerify()
	}

	if argv.Update != nil {
		err = doDistro()
	}

	if argv.MakeDists != nil {
		s, err = doMakeDists()
	}

	if argv.Newest != nil {
		s, err = doNewest("amd64")
	}

	if err != nil {
		me.sh.BadExit(s, err)
	}
	me.sh.GoodExit(s)
}

// make a list of the newest .deb files
func doNewest(arch string) (string, error) {
	log.Info("Processing dir", filepath.Join(me.pb.BaseDir, "pool"))

	newest := zoopb.NewPackages()
	for p := range me.pb.IterAll() {
		if p.Architecture != arch {
			continue
		}
		found := newest.FindByPackage(p.Package)
		if found == nil {
			// package is new
			log.Printf("%-20.20s %-20.20s %-80.80s\n", "new package", p.Package, p.Filename)
			newest.Clone(p)
			continue
		}
		curtime := p.Ctime.AsTime()
		newtime := found.Ctime.AsTime()
		durs := cobol.Since(p.Ctime) + " vs found " + cobol.Since(found.Ctime)
		if time.Since(curtime) > time.Since(newtime) {
			log.Printf("%-20.20s %-20.20s %-80.80s %s\n", "found is newer", p.Package, p.Filename, durs)
		} else {
			log.Printf("%-20.20s %-20.20s %-80.80s %s\n", "found is older", p.Package, p.Filename, durs)
			newest.Delete(found)
			newest.Clone(p)
		}
	}

	newest.SortPackage()
	var myshit string
	for p := range newest.IterAll() {
		controlfile, err := p.GetDebianControlFile()
		if err != nil {
			log.Info("make debInfo file error", err)
			panic("deb error")
		}
		log.Info(controlfile)
		myshit += controlfile + "\n"
	}

	fullname := "/home/mirrors/wit/first.Packages"
	if err := os.WriteFile(fullname, []byte(myshit), 0644); err != nil {
		return fullname, err
	}

	// footer := newest.PrintTable()
	// log.Info("newest packages ?", footer, counter)
	return "doNewest", nil
}