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main.go
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main.go
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package main
import (
"flag"
"fmt"
"io"
"os"
"time"
"github.com/issmirnov/docker-tag-yoinker/config"
"github.com/issmirnov/docker-tag-yoinker/docker"
"github.com/issmirnov/docker-tag-yoinker/interfaces"
"github.com/issmirnov/docker-tag-yoinker/semver"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
)
var Commit = "xxxxxx"
var Version = "x.x.x"
var Branch = "x"
var (
Ctx interfaces.Context
)
// Pass writer. Pass in ioutil.Discard to silence logs.
func setupLogging(logWriter io.Writer, debug bool) {
output := zerolog.ConsoleWriter{Out: logWriter, TimeFormat: time.RFC822}
zerolog.SetGlobalLevel(zerolog.WarnLevel)
if debug {
zerolog.SetGlobalLevel(zerolog.DebugLevel)
}
Ctx.Logger = zerolog.New(output).With().Timestamp().Logger()
}
func main() {
var (
debug = flag.Bool("debug", false, "enable debug logs")
configPath = flag.String("config", "config.toml", "config file")
version = flag.Bool("v", false, "print version info")
)
flag.Parse()
// set up logging.
setupLogging(os.Stdout, *debug)
//_ = config // FIXME
if err := config.LoadConfig(*configPath, &Ctx); err != nil {
log.Fatal().Msgf("Problem loading config file: %s", err.Error())
return
}
if *version {
fmt.Printf("version %s (%s-%s)\n", Version, Branch, Commit)
os.Exit(0)
}
tag := run(Ctx)
fmt.Print(tag)
}
// separate function, so that we can test this outside of main.
func run(ctx interfaces.Context) (tag string) {
tags, err := docker.GetDockerTags(ctx)
if err != nil {
log.Fatal().Msg(err.Error())
return
}
ver, err := semver.MunchTags(tags, ctx)
if err != nil {
fmt.Println(err.Error())
return
}
tag = ver.String()
ctx.Logger.Debug().Msgf("final tag= %s", tag)
return
}