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main.go
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main.go
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package main
import (
"fmt"
"io/ioutil"
"net/http"
"os"
)
func main() {
confFile, err := os.Open("urls.config")
if err != nil {
panic(err)
}
defer confFile.Close()
conf, err := GetResourceListFromConfig(confFile)
if err != nil {
panic(err)
}
dbFile, err := os.OpenFile(".db", os.O_RDWR|os.O_CREATE, 0666)
if err != nil {
panic(err)
}
defer dbFile.Close()
err = initDb(dbFile)
if err != nil {
panic(err)
}
defer persistDb()
for _, url := range conf {
err = checkUrl(url)
if err != nil {
fmt.Println(err)
}
}
}
func checkUrl(url string) error {
fmt.Println("Checking " + url)
response, err := http.Get(url)
if err != nil {
return err
}
defer response.Body.Close()
content, err := ioutil.ReadAll(response.Body)
if err != nil {
return err
}
if !hasContentForResource(url) {
setContentForResource(url, string(content))
fmt.Println("New Entry for URL: " + url)
return nil
}
if hasContentChanged(url, string(content)) {
fmt.Println("Content has changed for URL: " + url)
// @todo: if flagged 'update all' write new!
}
return nil
}