1 files changed, 58 insertions, 0 deletions
diff --git a/init.go b/init.go
new file mode 100644
index 0000000..9127c5d
--- /dev/null
+++ b/init.go
@@ -0,0 +1,58 @@
+package main
+
+import (
+	"errors"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+	flag "github.com/spf13/pflag"
+)
+
+// global config, gets overwritten by main
+var _conf Config
+
+func init() {
+	// overwrites unhelpful error message
+	flag.ErrHelp = errors.New("")
+
+	// we need to parse the config because of log level setting
+	configFile := flag.StringP("config", "c", "", "path to config file")
+	debug := flag.BoolP("debug", "d", false, "set log level to \"Debug\"")
+	verbose := flag.BoolP("verbose", "v", false, "set log level to \"Debug\", same as --debug")
+	silent := flag.BoolP("silent", "s", false, "suppress output except warnings")
+	loglevel_f := flag.String("loglevel", "Warn", `set log level, can be "Warn", "Info" or "Debug"`)
+	user_agent_f := flag.StringP("user-agent", "u", "", "set user agent")
+	delay_f := flag.Int("delay", 0, "enable and set delay in seconds between crawls (default 0)")
+	ignore_robots_f := flag.Bool("ignore-robots-txt", true, "ignore robots.txt")
+
+	flag.Parse()
+	loglevel := strings.ToLower(*loglevel_f)
+
+	if *debug || *verbose || loglevel == "debug" {
+		log.SetLevel(log.DebugLevel)
+	} else if loglevel == "info" {
+		log.SetLevel(log.InfoLevel)
+	} else {
+		log.SetLevel(log.WarnLevel)
+	}
+
+	if *silent {
+		log.SetLevel(log.WarnLevel)
+	}
+
+	_conf.parseConfig(*configFile)
+
+	if *user_agent_f != "" {
+		_conf.UserAgent = *user_agent_f
+	}
+	if *delay_f != 0 {
+		_conf.Delay = *delay_f
+	}
+	if !*ignore_robots_f {
+		_conf.IgnoreRobotsTXT = *ignore_robots_f
+	}
+
+	if _conf.Debug && !*silent {
+		log.SetLevel(log.DebugLevel)
+	}
+}