bump deps

.github/workflows/lint.yml

@@ -0,0 +1,7 @@
+name: ci
+
+on: [push]
+
+jobs:
+  test:
+    uses: byReqz/workflows/.github/workflows/golint_with_codeql.yml@main

README.md

@@ -12,6 +12,7 @@ arguments:
   -d, --device string   target device
   -f, --force           override safety features
   -i, --input string    input file
+  -n, --no-hash         disable hash verification
 ```
 
 If no image or device is specified, etcher will enter interactive mode and prompt for the missing parameters.

go.mod

@@ -1,23 +1,23 @@
 module github.com/byReqz/go-etcher
 
-go 1.17
+go 1.21
+
+toolchain go1.22.2
 
 require (
-	github.com/briandowns/spinner v1.18.0
+	github.com/JoaoDanielRufino/go-input-autocomplete v1.1.0
-	github.com/fatih/color v1.13.0
+	github.com/briandowns/spinner v1.23.0
-	github.com/schollz/progressbar/v3 v3.8.5
+	github.com/fatih/color v1.16.0
+	github.com/schollz/progressbar/v3 v3.14.2
+	github.com/spf13/pflag v1.0.5
 )
 
 require (
-	github.com/JoaoDanielRufino/go-input-autocomplete v1.0.4 // indirect
+	github.com/eiannone/keyboard v0.0.0-20220611211555-0d226195f203 // indirect
-	github.com/eiannone/keyboard v0.0.0-20200508000154-caf4b762e807 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-colorable v0.1.9 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/mattn/go-isatty v0.0.14 // indirect
-	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
-	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
+	golang.org/x/sys v0.19.0 // indirect
-	golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 // indirect
+	golang.org/x/term v0.19.0 // indirect
-	golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e // indirect
-	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 )

go.sum

@@ -1,53 +1,38 @@
-github.com/JoaoDanielRufino/go-input-autocomplete v1.0.4 h1:ZsgP08f77C1Hizi5pfB9xNBG+d605s0z+PWuI5KLEEk=
+github.com/JoaoDanielRufino/go-input-autocomplete v1.1.0 h1:FNqKY5QPEIsqD1L8MFWh+mcU/vIZT45n5/XIYuDUOQc=
-github.com/JoaoDanielRufino/go-input-autocomplete v1.0.4/go.mod h1:tB42IGOd4W3hzlAcw8JWf0mMnu94q4tPsjhT24MbcB4=
+github.com/JoaoDanielRufino/go-input-autocomplete v1.1.0/go.mod h1:jbEOh6l6PzFysFEbqoooNDwTQwb9Oz8hBwMJh2CTVlI=
-github.com/briandowns/spinner v1.18.0 h1:SJs0maNOs4FqhBwiJ3Gr7Z1D39/rukIVGQvpNZVHVcM=
+github.com/briandowns/spinner v1.23.0 h1:alDF2guRWqa/FOZZYWjlMIx2L6H0wyewPxo/CH4Pt2A=
-github.com/briandowns/spinner v1.18.0/go.mod h1:QOuQk7x+EaDASo80FEXwlwiA+j/PPIcX3FScO+3/ZPQ=
+github.com/briandowns/spinner v1.23.0/go.mod h1:rPG4gmXeN3wQV/TsAY4w8lPdIM6RX3yqeBQJSrbXjuE=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/eiannone/keyboard v0.0.0-20200508000154-caf4b762e807 h1:jdjd5e68T4R/j4PWxfZqcKY8KtT9oo8IPNVuV4bSXDQ=
+github.com/eiannone/keyboard v0.0.0-20220611211555-0d226195f203 h1:XBBHcIb256gUJtLmY22n99HaZTz+r2Z51xUPi01m3wg=
-github.com/eiannone/keyboard v0.0.0-20200508000154-caf4b762e807/go.mod h1:Xoiu5VdKMvbRgHuY7+z64lhu/7lvax/22nzASF6GrO8=
+github.com/eiannone/keyboard v0.0.0-20220611211555-0d226195f203/go.mod h1:E1jcSv8FaEny+OP/5k9UxZVw9YFWGj7eI4KR/iOBqCg=
-github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
+github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
-github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
+github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
-github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
 github.com/k0kubun/go-ansi v0.0.0-20180517002512-3bf9e2903213/go.mod h1:vNUNkEQ1e29fT/6vq2aBdFsgNPmy8qMdSay1npru+Sw=
-github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
-github.com/mattn/go-colorable v0.1.9 h1:sqDoxXbdeALODt0DAeJCVp38ps9ZogZEAXjus69YV3U=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
-github.com/mattn/go-colorable v0.1.9/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
-github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
-github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
-github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
-github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
-github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
-github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2EmQ4l5rM/4FEfDWcRD+abF5XlKShorW5LRoQ=
 github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
-github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
-github.com/schollz/progressbar/v3 v3.8.5 h1:VcmmNRO+eFN3B0m5dta6FXYXY+MEJmXdWoIS+jjssQM=
+github.com/schollz/progressbar/v3 v3.14.2 h1:EducH6uNLIWsr560zSV1KrTeUb/wZGAHqyMFIEa99ks=
-github.com/schollz/progressbar/v3 v3.8.5/go.mod h1:ewO25kD7ZlaJFTvMeOItkOZa8kXu1UvFs379htE8HMQ=
+github.com/schollz/progressbar/v3 v3.14.2/go.mod h1:aQAZQnhF4JGFtRJiw/eobaXpsqpVQAftEQ+hLGXaRc4=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 h1:0es+/5331RGQPcXlMfP+WrnIIS6dNnNRe0WB02W0F4M=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
-golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
-golang.org/x/sys v0.0.0-20200806125547-5acd03effb82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.19.0 h1:+ThwsDv+tYfnJFhF4L8jITxu1tdTWRTZpdsWgEgjL6Q=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.19.0/go.mod h1:2CuTdWZ7KHSQwUzKva0cbMg6q2DMI3Mmxp+gKJbskEk=
-golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e h1:fLOSk5Q00efkSvAm+4xcoXD+RRmLmmulPn5I3Y9F2EM=
-golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

main.go

@@ -1,26 +1,32 @@
 package main
+
 import (
+	"crypto/sha256"
 	"fmt"
-	"os"
-	"io"
-	"time"
-	"log"
-	"strings"
-	"github.com/schollz/progressbar/v3"
-	"github.com/fatih/color"
-	"github.com/briandowns/spinner"
-	flag "github.com/spf13/pflag"
 	ac "github.com/JoaoDanielRufino/go-input-autocomplete"
+	"github.com/briandowns/spinner"
+	"github.com/fatih/color"
+	"github.com/schollz/progressbar/v3"
+	flag "github.com/spf13/pflag"
+	"io"
+	"log"
+	"os"
+	"runtime"
+	"strconv"
+	"strings"
+	"time"
 )
 
 var device string
 var input string
 var force bool
+var disable_hash bool
 
 func init() {
 	flag.StringVarP(&device, "device", "d", "", "target device")
 	flag.StringVarP(&input, "input", "i", "", "input file")
 	flag.BoolVarP(&force, "force", "f", false, "override safety features")
+	flag.BoolVarP(&disable_hash, "no-hash", "n", false, "disable hash verification")
 	flag.Parse()
 }
 
@@ -45,6 +51,7 @@ func GetPath() string {
 }
 
 func GetDest() string {
+	PrintAvail()
 	dest, err := ac.Read("[ " + color.YellowString("i") + " ]  Please input destination: ")
 	if err != nil {
 		log.Fatal(err)
@@ -85,24 +92,42 @@ func WriteImage(image *os.File, target *os.File, size int64) (int64, error) {
 	return written, err
 }
 
-func Sync(image *os.File, target *os.File) error {
+func PrintAvail() {
-	err := image.Sync()
+	if runtime.GOOS == "linux" {
-	if err != nil {
+		block, _ := os.ReadDir("/sys/block")
-		return err
+		if len(block) == 0 {
+			return
+		}
+		var targets []string
+		for _, device := range block {
+			if strings.HasPrefix(device.Name(), "sd") {
+				targets = append(targets, device.Name())
+			}
+			if strings.HasPrefix(device.Name(), "nvme") {
+				targets = append(targets, device.Name())
+			}
+			if strings.HasPrefix(device.Name(), "vd") {
+				targets = append(targets, device.Name())
+			}
+		}
+		fmt.Println("Available devices:")
+		for _, target := range targets {
+			sizefile, _ := os.Open("/sys/block/" + target + "/size")
+			sizeread, _ := io.ReadAll(sizefile)
+			_ = sizefile.Close()
+			sizestring := strings.ReplaceAll(string(sizeread), "\n", "")
+			size, _ := strconv.Atoi(sizestring)
+			size = size * 512
+			size = size / 1024 / 1024 / 1024
+
+			fmt.Print("     * ", "/dev/"+target)
+			if size > 0 {
+				fmt.Print(" [", size, "GB]\n")
+			} else {
+				fmt.Println("")
+			}
+		}
 	}
-	err = target.Sync()
-	if err != nil {
-		return err
-	}
-	err = image.Close()
-	if err != nil {
-		return err
-	}
-	err = target.Close()
-	if err != nil {
-		return err
-	}
-	return nil
 }
 
 func main() {
@@ -122,7 +147,7 @@ func main() {
 		} else if len(flag.Args()) > 0 {
 			if input == flag.Args()[0] && len(flag.Args()) > 1 {
 				device = flag.Args()[1]
-			}	else if input != flag.Args()[0] && len(flag.Args()) > 0 {
+			} else if input != flag.Args()[0] && len(flag.Args()) > 0 {
 				device = flag.Args()[0]
 			}
 		}
@@ -142,18 +167,11 @@ func main() {
 		s.Stop()
 		fmt.Println("\r[", color.RedString("✘"), "]  Getting file details                     ")
 		log.Fatal(err)
-	} else {
-		s.Stop()
-		fmt.Println("\r[", color.GreenString("✓"), "]  Getting file details                     ")
 	}
-
-	s.Prefix = "[ "
-	s.Suffix = " ]  Opening files"
-	s.Start()
 	image, err := os.Open(input)
 	if err != nil {
 		s.Stop()
-		fmt.Println("\r[", color.RedString("✘"), "]  Opening files                   ")
+		fmt.Println("\r[", color.RedString("✘"), "]  Getting file details                     ")
 		log.Fatal(err)
 	}
 	var inputsize int64
@@ -162,13 +180,14 @@ func main() {
 		inputsize = statinput.Size()
 		inputisblock = false
 	} else {
-		inputsize, err = image.Seek(0, io.SeekEnd)
+		inputsize, _ = image.Seek(0, io.SeekEnd)
 		inputisblock = true
+		_, _ = image.Seek(0, 0)
 	}
 	target, err := os.OpenFile(device, os.O_RDWR, 0660)
 	if err != nil {
 		s.Stop()
-		fmt.Println("\r[", color.RedString("✘"), "]  Opening files                   ")
+		fmt.Println("\r[", color.RedString("✘"), "]  Getting file details                     ")
 		log.Fatal(err)
 	}
 	var targetsize int64
@@ -179,43 +198,57 @@ func main() {
 	} else {
 		targetsize, err = target.Seek(0, io.SeekEnd)
 		targetisblock = true
+		_, _ = target.Seek(0, 0)
+	}
+	prehash := sha256.New()
+	if !(force || disable_hash) {
+		if err != nil {
+			s.Stop()
+			fmt.Println("\r[", color.RedString("✘"), "]  Getting file details                     ")
+			log.Fatal(err)
+		}
+
+		_, err = io.Copy(prehash, image)
+		_, _ = image.Seek(0, 0)
 	}
 	if err != nil {
 		s.Stop()
-		fmt.Println("\r[", color.RedString("✘"), "]  Opening files                   ")
+		fmt.Println("\r[", color.RedString("✘"), "]  Getting file details                     ")
 		log.Fatal(err)
 	} else {
 		s.Stop()
-		fmt.Println("\r[", color.GreenString("✓"), "]  Opening files                 ")
+		fmt.Println("\r[", color.GreenString("✓"), "]  Getting file details                     ")
 	}
-	inputmb := fmt.Sprint("[", inputsize / 1024 / 1024, "MB]")
+	inputmb := fmt.Sprint("[", inputsize/1024/1024, "MB]")
-	devicemb := fmt.Sprint("[", targetsize / 1024 / 1024, "MB]")
+	devicemb := fmt.Sprint("[", targetsize/1024/1024, "MB]")
 	var inputblock string
 	var targetblock string
-	if inputisblock == true {
+	if inputisblock {
 		inputblock = "[Blockdevice]"
 	} else {
 		inputblock = "[File]"
 	}
-	if targetisblock == true {
+	if targetisblock {
 		targetblock = "[Blockdevice]"
 	} else {
 		targetblock = "[File]"
 	}
-	fmt.Println("[", color.BlueString("i"), "]  Input device/file: " + input, inputmb, inputblock)
+	fmt.Println("[", color.BlueString("i"), "]  Input device/file: "+input, inputmb, inputblock)
-	fmt.Println("[", color.BlueString("i"), "]  Output device/file: " + device, devicemb, targetblock)
+	fmt.Println("[", color.BlueString("i"), "]  Output device/file: "+device, devicemb, targetblock)
-	if statinput.Size() > statdevice.Size() {
+	if !force {
-		fmt.Println("[", color.RedString("w"), "]", color.RedString(" Warning:"), "Input file seems to be bigger than the destination!")
+		if inputsize > targetsize {
+			fmt.Println("[", color.RedString("w"), "]", color.RedString(" Warning:"), "Input file seems to be bigger than the destination!")
+		}
+		fmt.Print(color.HiWhiteString("Do you want to continue? [y/N]: "))
+		var yesno string
+		_, _ = fmt.Scanln(&yesno)
+		yesno = strings.TrimSpace(yesno)
+		if !(yesno == "y" || yesno == "Y") {
+			log.Fatal("aborted")
+		}
 	}
-	fmt.Print(color.HiWhiteString("Do you want to continue? [y/N]: "))
-	var yesno string
-	_, _ = fmt.Scanln(&yesno)
-	yesno = strings.TrimSpace(yesno)
-	if ! (yesno == "y" || yesno == "Y") {
-		log.Fatal("aborted")
-	}
-
 	written, err := WriteImage(image, target, inputsize)
+	_, _ = target.Seek(0, 0)
 	if err != nil {
 		fmt.Println("\r[", color.RedString("✘"), "]  Writing image,", written, "bytes written                                                    ")
 		log.Fatal(err)
@@ -226,7 +259,13 @@ func main() {
 	s.Prefix = "[ "
 	s.Suffix = " ]  Syncing"
 	s.Start()
-	err = Sync(image, target)
+	err = image.Sync()
+	if err != nil {
+		s.Stop()
+		fmt.Println("\r[", color.RedString("✘"), "]  Syncing                    ")
+		log.Fatal(err)
+	}
+	err = target.Sync()
 	if err != nil {
 		s.Stop()
 		fmt.Println("\r[", color.RedString("✘"), "]  Syncing                    ")
@@ -235,4 +274,29 @@ func main() {
 		s.Stop()
 		fmt.Println("\r[", color.GreenString("✓"), "]  Syncing                  ")
 	}
+	if !(force || disable_hash) {
+		s.Prefix = "[ "
+		s.Suffix = " ]  Verifying"
+		s.Start()
+		posthash := sha256.New()
+		_, err = io.CopyN(posthash, target, inputsize)
+		presum := fmt.Sprintf("%x", prehash.Sum(nil))
+		postsum := fmt.Sprintf("%x", posthash.Sum(nil))
+		if err != nil || presum != postsum {
+			s.Stop()
+			fmt.Println("\r[", color.RedString("✘"), "]  Verifying                    ")
+			log.Fatal(err)
+		} else {
+			s.Stop()
+			fmt.Println("\r[", color.GreenString("✓"), "]  Verifying                  ")
+		}
+	}
+	err = image.Close()
+	if err != nil {
+		log.Fatal(err)
+	}
+	err = target.Close()
+	if err != nil {
+		log.Fatal(err)
+	}
 }