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filtra.go
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filtra.go
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package main
import (
"flag"
"fmt"
"io"
"os"
"time"
"database/sql"
_ "github.com/lib/pq"
log "github.com/sirupsen/logrus"
)
const (
// exitFail is the exit code if the program
// fails.
exitFail = 1
)
var db *sql.DB
func updateLoop() {
log.Infof("Updating metrics from Github: %s", time.Now())
issues, err := FetchAllIssues()
if err != nil {
log.Error("Not able to fetch issues from Github: ", err)
} else {
metrics := NewMetrics(issues)
metrics.writeToDB(db)
log.Infof("Update finished: %s", time.Now())
log.Debugf("Update interval: %d", config.Repository.UpdateInterval)
}
}
func run(args []string, stdout io.Writer) error {
flags := flag.NewFlagSet(args[0], flag.ExitOnError)
var (
debugFlag = flags.Bool("debug", false, "Sets log level to debug.")
configFileFlag = flags.String("config", "./config.toml", "Path to config file")
)
if err := flags.Parse(args[1:]); err != nil {
return err
}
// Setting logger to debug level when debug flag was set.
if *debugFlag == true {
log.SetLevel(log.DebugLevel)
log.Debugf("Config: %+v", config)
}
// globally load toml config
if fileExists(*configFileFlag) {
loadConfig(*configFileFlag)
} else {
log.Fatal("Please provide a config file with `-config <yourconfig>` or just create `config.toml` in this directory")
}
// Make sure update interval has a default value
updateInterval := uint64(config.Repository.UpdateInterval)
if updateInterval <= 0 {
updateInterval = 1800 // 30 mins
}
// Initialize connection to sqlite database
var err error
var psqlConfig = fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
config.Database.Host, config.Database.Port, config.Database.User, config.Database.Password, config.Database.DBname)
// Connect to PostgreSQL
db, _ = sql.Open("postgres", psqlConfig)
defer db.Close()
// Test if our connection actually works
err = db.Ping()
if err != nil {
log.Fatalf("Unable to connect to PostgreSQL: %s", err)
}
// Poll Github and update DB on a regular interval
for {
updateLoop()
time.Sleep(time.Duration(updateInterval) * time.Second)
}
}
func main() {
if err := run(os.Args, os.Stdout); err != nil {
fmt.Fprintf(os.Stderr, "%s\n", err)
os.Exit(exitFail)
}
}