/
main.go
56 lines (45 loc) · 1.32 KB
/
main.go
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package ltsvExporter
import (
"fmt"
"log"
"net/http"
"github.com/mkideal/cli"
"github.com/prometheus/client_golang/prometheus"
)
var (
rev string
ver string
)
type opt struct {
cli.Helper
Version bool `cli:"v,version" usage:"display version and revision"`
Port int `cli:"p,port" usage:"set the port number to listen" dft:"6666"`
LTSVURL string `cli:"u,url" usage:"set a URL of the LTSV"`
LTSVFilePath string `cli:"f,file" usage:"set a file of the LTSV"`
}
func Run(args []string) {
cli.Run(&opt{}, func(ctx *cli.Context) error {
argv := ctx.Argv().(*opt)
if argv.Version {
ctx.String(fmt.Sprintf("%s/%s\n", ver, rev))
return nil
}
var ltsvScraper ltsvScraper
if argv.LTSVURL != "" {
ltsvScraper = newRemoteLTSVScraper(argv.LTSVURL)
log.Printf("Target LTSV => remote: %s", argv.LTSVURL)
} else if argv.LTSVFilePath != "" {
ltsvScraper = newFileLTSVScraper(argv.LTSVFilePath)
log.Printf("Target LTSV => file: %s", argv.LTSVFilePath)
} else {
ctx.String("[ERROR] required parameter --url or --file missing\n")
return nil
}
prometheus.MustRegister(newExporter(ltsvScraper))
http.Handle("/metrics", prometheus.Handler())
addr := fmt.Sprintf(":%d", argv.Port)
log.Print("Listening 127.0.0.1", addr)
log.Fatal(http.ListenAndServe(addr, nil))
return nil
})
}