break up main.go into sibling files

init.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
+)
+
+// GitCommit holds the git commit message on compile time
+var GitCommit string
+
+// GitBranch holds the active git branch on compile time
+var GitBranch string
+
+// GitState holds the dirty-state on compile time
+var GitState string
+
+// BuildDate date of compile
+var BuildDate string
+
+// Version version string as contained in VERSION
+var Version string
+
+// init parses the command line arguments with pflag and viper
+func init() {
+	pflag.BoolP("help", "h", false, "Prints this help message")
+	pflag.StringP("output", "o", "./code", "Relative or absolute path to the directory where you want to store user-posted pastes.")
+	pflag.StringP("domain", "d", "localhost", "This will be used as a prefix for an output received by the client. Value will be prepended with http[s].")
+	pflag.IntP("port", "p", 9999, "Port in which the service should listen on.")
+	pflag.BoolP("https", "S", false, fmt.Sprintf("If set, %s returns url with https prefix instead of http.", AppName))
+	pflag.IntP("buffer", "B", 32768, "This parameter defines size of the buffer used for getting data from the user. Maximum size (in bytes) of all input files is defined by this value.")
+	pflag.StringP("log", "l", "", "Log file. This file has to be user-writable.")
+	pflag.Parse()
+	viper.BindPFlags(pflag.CommandLine)
+
+	if viper.GetBool("help") {
+		fmt.Printf("%s! - Version %s, Built on %s from Git tag [%s:%s-%s)\n", AppName, Version, BuildDate, GitBranch, GitCommit, GitState)
+		pflag.Usage()
+		os.Exit(2)
+	}
+
+	if viper.GetBool("https") {
+		viper.Set("uriprefix", "https")
+	} else {
+		viper.Set("uriprefix", "http")
+	}
+}