Merge pull request #4 from sudosammy/dev

fix daily update check bug & add build script + version push

.gitignore

@@ -1,5 +1,5 @@
 .env
+dev
 knary.log
 blacklist.txt
-knary.exe
-dev
+knary.exe

VERSION

@@ -1 +1 @@
-1.1.0
+1.1.1

build.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# https://www.digitalocean.com/community/tutorials/how-to-build-go-executables-for-multiple-platforms-on-ubuntu-16-04
+package=$1
+version=$2
+if [[ -z "$package" ]]; then
+	echo "usage: $0 main.go <version>"
+	exit 1
+fi
+package_split=(${package//\// })
+
+platforms=("windows/amd64" "linux/amd64" "darwin/amd64")
+
+for platform in "${platforms[@]}"
+do
+	platform_split=(${platform//\// })
+	GOOS=${platform_split[0]}
+	GOARCH=${platform_split[1]}
+	output_name='knary-'$version'-'$GOOS'-'$GOARCH
+	if [ $GOOS = "windows" ]; then
+		output_name+='.exe'
+	fi  
+
+	env GOOS=$GOOS GOARCH=$GOARCH CGO_ENABLED=0 go build -o $output_name $package
+	if [ $? -ne 0 ]; then
+		echo 'An error has occurred! Aborting the script execution...'
+		exit 1
+	fi
+done

main.go

@@ -4,19 +4,19 @@ import (
 	"github.com/fatih/color"
 	"github.com/joho/godotenv"
 	"github.com/miekg/dns"
-	"github.com/robfig/cron"
 
 	"fmt"
 	"log"
 	"os"
 	"sync"
+	"time"
 
 	//"./libknary"
 	"github.com/sudosammy/knary/libknary"
 )
 
 const (
-	VERSION       = "1.1.0"
+	VERSION       = "1.1.1"
 	GITHUB        = "https://github.com/sudosammy/knary"
 	GITHUBVERSION = "https://raw.githubusercontent.com/sudosammy/knary/master/VERSION"
 )
@@ -30,10 +30,23 @@ func main() {
 		log.Fatal(err)
 	}
 
-	// set cron for update checks
-	cron := cron.New()
-	cron.AddFunc("@daily", func() { libknary.CheckUpdate(VERSION, GITHUBVERSION, GITHUB) })
-	defer cron.Stop()
+	// set ticker for update checks
+	// https://stackoverflow.com/questions/16466320/is-there-a-way-to-do-repetitive-tasks-at-intervals-in-golang
+	ticker := time.NewTicker(24 * time.Hour)
+	quit := make(chan struct{})
+	go func() {
+		for {
+			select {
+			case <-ticker.C:
+				libknary.CheckUpdate(VERSION, GITHUBVERSION, GITHUB)
+			case <-quit:
+				ticker.Stop()
+				return
+			}
+		}
+	}()
+	defer close(quit)
+
 	// check for updates on first run
 	libknary.CheckUpdate(VERSION, GITHUBVERSION, GITHUB)