From 7dc7e7a7663b76382bbcd907104277591286820c Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Thu, 25 Feb 2021 12:18:20 +0900
Subject: [PATCH 01/24] =?UTF-8?q?=E3=81=B2=E3=81=A8=E3=81=BE=E3=81=9A?=
 =?UTF-8?q?=E5=8B=95=E3=81=8F=E3=82=82=E3=81=AE=E3=82=92=E4=BD=9C=E6=88=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/go.mod  |   3 ++
 kadai1/edm20627/main.go | 107 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 110 insertions(+)
 create mode 100644 kadai1/edm20627/go.mod
 create mode 100644 kadai1/edm20627/main.go

diff --git a/kadai1/edm20627/go.mod b/kadai1/edm20627/go.mod
new file mode 100644
index 00000000..02e3b462
--- /dev/null
+++ b/kadai1/edm20627/go.mod
@@ -0,0 +1,3 @@
+module github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627
+
+go 1.15
diff --git a/kadai1/edm20627/main.go b/kadai1/edm20627/main.go
new file mode 100644
index 00000000..7633ff66
--- /dev/null
+++ b/kadai1/edm20627/main.go
@@ -0,0 +1,107 @@
+package main
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	"image"
+	"image/gif"
+	"image/jpeg"
+	"image/png"
+	"path/filepath"
+	"strings"
+
+	"os"
+)
+
+var supportedFormat = []string{"png", "jpg", "jpeg", "gif"}
+
+var from, to string
+
+func init() {
+	flag.StringVar(&from, "from", "jpg", "変更元")
+	flag.StringVar(&from, "f", "jpg", "変更元(short)")
+	flag.StringVar(&to, "to", "png", "変更先")
+	flag.StringVar(&to, "t", "png", "変更先(short)")
+}
+
+func main() {
+	flag.Parse()
+	dirs := flag.Args()
+
+	if !valid(from) || !valid(to) {
+		fmt.Fprintln(os.Stderr, "supported formt is "+strings.Join(supportedFormat, ", "))
+		os.Exit(1)
+	}
+
+	for _, dir := range dirs {
+		err := walk(dir)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err.Error())
+			os.Exit(1)
+		}
+	}
+}
+
+func walk(dir string) error {
+	err := filepath.Walk(dir,
+		func(path string, info os.FileInfo, err error) error {
+			if info == nil {
+				return errors.New(path + " is not directory")
+			}
+			if info.IsDir() || filepath.Ext(path)[1:] != from {
+				return nil
+			}
+
+			err = imageConvert(path)
+			if err != nil {
+				return err
+			}
+
+			return nil
+		})
+
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func imageConvert(path string) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	img, _, err := image.Decode(f)
+	if err != nil {
+		return err
+	}
+
+	out, err := os.Create(path[:len(path)-len(filepath.Ext(path))] + "." + to)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	switch to {
+	case "png":
+		png.Encode(out, img)
+	case "jpg":
+		jpeg.Encode(out, img, nil)
+	case "gif":
+		gif.Encode(out, img, nil)
+	}
+
+	return nil
+}
+
+func valid(extension string) bool {
+	for _, v := range supportedFormat {
+		if v == extension {
+			return true
+		}
+	}
+	return false
+}

From 5aed38c41d662aa87bc8f074902f2b84be1a2ada Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 01:45:41 +0900
Subject: [PATCH 02/24] =?UTF-8?q?=E3=83=A6=E3=83=BC=E3=82=B6=E5=AE=9A?=
 =?UTF-8?q?=E7=BE=A9=E5=9E=8B=E3=82=92=E4=BD=9C=E6=88=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/main.go | 100 ++++++++++++++++++++++------------------
 1 file changed, 56 insertions(+), 44 deletions(-)

diff --git a/kadai1/edm20627/main.go b/kadai1/edm20627/main.go
index 7633ff66..8513bc7d 100644
--- a/kadai1/edm20627/main.go
+++ b/kadai1/edm20627/main.go
@@ -8,66 +8,50 @@ import (
 	"image/gif"
 	"image/jpeg"
 	"image/png"
+	"os"
 	"path/filepath"
 	"strings"
-
-	"os"
 )
 
 var supportedFormat = []string{"png", "jpg", "jpeg", "gif"}
 
-var from, to string
-
-func init() {
-	flag.StringVar(&from, "from", "jpg", "変更元")
-	flag.StringVar(&from, "f", "jpg", "変更元(short)")
-	flag.StringVar(&to, "to", "png", "変更先")
-	flag.StringVar(&to, "t", "png", "変更先(short)")
+type convertImage struct {
+	filepaths []string
+	from, to  string
 }
 
-func main() {
-	flag.Parse()
-	dirs := flag.Args()
-
-	if !valid(from) || !valid(to) {
-		fmt.Fprintln(os.Stderr, "supported formt is "+strings.Join(supportedFormat, ", "))
-		os.Exit(1)
-	}
-
+func (ci *convertImage) get(dirs []string) error {
 	for _, dir := range dirs {
-		err := walk(dir)
+		err := filepath.Walk(dir,
+			func(path string, info os.FileInfo, err error) error {
+				if info == nil {
+					return errors.New(path + " is not directory")
+				}
+				if info.IsDir() || filepath.Ext(path)[1:] != ci.from {
+					return nil
+				}
+				ci.filepaths = append(ci.filepaths, path)
+				return nil
+			})
 		if err != nil {
-			fmt.Fprintln(os.Stderr, err.Error())
-			os.Exit(1)
+			return err
 		}
+		return nil
 	}
+	return nil
 }
 
-func walk(dir string) error {
-	err := filepath.Walk(dir,
-		func(path string, info os.FileInfo, err error) error {
-			if info == nil {
-				return errors.New(path + " is not directory")
-			}
-			if info.IsDir() || filepath.Ext(path)[1:] != from {
-				return nil
-			}
-
-			err = imageConvert(path)
-			if err != nil {
-				return err
-			}
-
-			return nil
-		})
-
-	if err != nil {
-		return err
+func (ci *convertImage) convert() error {
+	for _, path := range ci.filepaths {
+		err := convert(path, ci.to)
+		if err != nil {
+			return err
+		}
 	}
 	return nil
 }
 
-func imageConvert(path string) error {
+func convert(path string, to string) error {
 	f, err := os.Open(path)
 	if err != nil {
 		return err
@@ -88,15 +72,43 @@ func imageConvert(path string) error {
 	switch to {
 	case "png":
 		png.Encode(out, img)
-	case "jpg":
+	case "jpg", "jpeg":
 		jpeg.Encode(out, img, nil)
 	case "gif":
 		gif.Encode(out, img, nil)
 	}
-
 	return nil
 }
 
+var ci = convertImage{}
+
+func init() {
+	flag.StringVar(&ci.from, "from", "jpg", "変更元")
+	flag.StringVar(&ci.from, "f", "jpg", "変更元(short)")
+	flag.StringVar(&ci.to, "to", "png", "変更先")
+	flag.StringVar(&ci.to, "t", "png", "変更先(short)")
+}
+
+func main() {
+	flag.Parse()
+	dirs := flag.Args()
+
+	if !valid(ci.from) || !valid(ci.to) {
+		fmt.Fprintln(os.Stderr, "supported formt is "+strings.Join(supportedFormat, ", "))
+		os.Exit(1)
+	}
+
+	err := ci.get(dirs)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+	}
+
+	err = ci.convert()
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+	}
+}
+
 func valid(extension string) bool {
 	for _, v := range supportedFormat {
 		if v == extension {

From 9dc975548aee8f0c5684e62a812b1ac82bd34538 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 03:12:22 +0900
Subject: [PATCH 03/24] =?UTF-8?q?=E8=87=AA=E4=BD=9C=E3=83=91=E3=83=83?=
 =?UTF-8?q?=E3=82=B1=E3=83=BC=E3=82=B8=E3=82=92=E4=BD=9C=E6=88=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/imageconvert/imageconvert.go | 76 +++++++++++++++++
 kadai1/edm20627/main.go                      | 88 ++------------------
 2 files changed, 85 insertions(+), 79 deletions(-)
 create mode 100644 kadai1/edm20627/imageconvert/imageconvert.go

diff --git a/kadai1/edm20627/imageconvert/imageconvert.go b/kadai1/edm20627/imageconvert/imageconvert.go
new file mode 100644
index 00000000..65ac6019
--- /dev/null
+++ b/kadai1/edm20627/imageconvert/imageconvert.go
@@ -0,0 +1,76 @@
+package imageconvert
+
+import (
+	"errors"
+	"image"
+	"image/gif"
+	"image/jpeg"
+	"image/png"
+	"os"
+	"path/filepath"
+)
+
+type ConvertImage struct {
+	filepaths []string
+	From, To  string
+}
+
+func (ci *ConvertImage) Get(dirs []string) error {
+	for _, dir := range dirs {
+		err := filepath.Walk(dir,
+			func(path string, info os.FileInfo, err error) error {
+				if info == nil {
+					return errors.New(path + " is not directory")
+				}
+				if info.IsDir() || filepath.Ext(path)[1:] != ci.From {
+					return nil
+				}
+				ci.filepaths = append(ci.filepaths, path)
+				return nil
+			})
+		if err != nil {
+			return err
+		}
+		return nil
+	}
+	return nil
+}
+
+func (ci *ConvertImage) Convert() error {
+	for _, path := range ci.filepaths {
+		err := convert(path, ci.To)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func convert(path string, To string) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	img, _, err := image.Decode(f)
+	if err != nil {
+		return err
+	}
+
+	out, err := os.Create(path[:len(path)-len(filepath.Ext(path))] + "." + To)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	switch To {
+	case "png":
+		png.Encode(out, img)
+	case "jpg", "jpeg":
+		jpeg.Encode(out, img, nil)
+	case "gif":
+		gif.Encode(out, img, nil)
+	}
+	return nil
+}
diff --git a/kadai1/edm20627/main.go b/kadai1/edm20627/main.go
index 8513bc7d..27898b57 100644
--- a/kadai1/edm20627/main.go
+++ b/kadai1/edm20627/main.go
@@ -1,109 +1,39 @@
 package main
 
 import (
-	"errors"
 	"flag"
 	"fmt"
-	"image"
-	"image/gif"
-	"image/jpeg"
-	"image/png"
 	"os"
-	"path/filepath"
 	"strings"
+	"github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627/imageconvert"
 )
 
 var supportedFormat = []string{"png", "jpg", "jpeg", "gif"}
 
-type convertImage struct {
-	filepaths []string
-	from, to  string
-}
-
-func (ci *convertImage) get(dirs []string) error {
-	for _, dir := range dirs {
-		err := filepath.Walk(dir,
-			func(path string, info os.FileInfo, err error) error {
-				if info == nil {
-					return errors.New(path + " is not directory")
-				}
-				if info.IsDir() || filepath.Ext(path)[1:] != ci.from {
-					return nil
-				}
-				ci.filepaths = append(ci.filepaths, path)
-				return nil
-			})
-		if err != nil {
-			return err
-		}
-		return nil
-	}
-	return nil
-}
-
-func (ci *convertImage) convert() error {
-	for _, path := range ci.filepaths {
-		err := convert(path, ci.to)
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func convert(path string, to string) error {
-	f, err := os.Open(path)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	img, _, err := image.Decode(f)
-	if err != nil {
-		return err
-	}
-
-	out, err := os.Create(path[:len(path)-len(filepath.Ext(path))] + "." + to)
-	if err != nil {
-		return err
-	}
-	defer out.Close()
-
-	switch to {
-	case "png":
-		png.Encode(out, img)
-	case "jpg", "jpeg":
-		jpeg.Encode(out, img, nil)
-	case "gif":
-		gif.Encode(out, img, nil)
-	}
-	return nil
-}
-
-var ci = convertImage{}
+var ci = imageconvert.ConvertImage{}
 
 func init() {
-	flag.StringVar(&ci.from, "from", "jpg", "変更元")
-	flag.StringVar(&ci.from, "f", "jpg", "変更元(short)")
-	flag.StringVar(&ci.to, "to", "png", "変更先")
-	flag.StringVar(&ci.to, "t", "png", "変更先(short)")
+	flag.StringVar(&ci.From, "from", "jpg", "変更元")
+	flag.StringVar(&ci.From, "f", "jpg", "変更元(short)")
+	flag.StringVar(&ci.To, "to", "png", "変更先")
+	flag.StringVar(&ci.To, "t", "png", "変更先(short)")
 }
 
 func main() {
 	flag.Parse()
 	dirs := flag.Args()
 
-	if !valid(ci.from) || !valid(ci.to) {
+	if !valid(ci.From) || !valid(ci.To) {
 		fmt.Fprintln(os.Stderr, "supported formt is "+strings.Join(supportedFormat, ", "))
 		os.Exit(1)
 	}
 
-	err := ci.get(dirs)
+	err := ci.Get(dirs)
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)
 	}
 
-	err = ci.convert()
+	err = ci.Convert()
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)
 	}

From 7d5d81e4abca64390c571eff1a7c0874da93196d Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 04:05:21 +0900
Subject: [PATCH 04/24] =?UTF-8?q?vlid=E9=96=A2=E6=95=B0=E3=82=92=E3=83=A1?=
 =?UTF-8?q?=E3=82=BD=E3=83=83=E3=83=89=E3=81=AB=E5=A4=89=E6=9B=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/imageconvert/imageconvert.go | 16 ++++++++++++++++
 kadai1/edm20627/main.go                      | 20 +++++---------------
 2 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/kadai1/edm20627/imageconvert/imageconvert.go b/kadai1/edm20627/imageconvert/imageconvert.go
index 65ac6019..8e57c38b 100644
--- a/kadai1/edm20627/imageconvert/imageconvert.go
+++ b/kadai1/edm20627/imageconvert/imageconvert.go
@@ -10,6 +10,8 @@ import (
 	"path/filepath"
 )
 
+var SupportedFormat = []string{"png", "jpg", "jpeg", "gif"}
+
 type ConvertImage struct {
 	filepaths []string
 	From, To  string
@@ -19,6 +21,7 @@ func (ci *ConvertImage) Get(dirs []string) error {
 	for _, dir := range dirs {
 		err := filepath.Walk(dir,
 			func(path string, info os.FileInfo, err error) error {
+
 				if info == nil {
 					return errors.New(path + " is not directory")
 				}
@@ -46,6 +49,19 @@ func (ci *ConvertImage) Convert() error {
 	return nil
 }
 
+func (ci *ConvertImage) Valid() bool {
+	for _, v := range SupportedFormat {
+		if v == ci.From {
+			for _, v := range SupportedFormat {
+				if v == ci.To {
+					return true
+				}
+			}
+		}
+	}
+	return false
+}
+
 func convert(path string, To string) error {
 	f, err := os.Open(path)
 	if err != nil {
diff --git a/kadai1/edm20627/main.go b/kadai1/edm20627/main.go
index 27898b57..a719f783 100644
--- a/kadai1/edm20627/main.go
+++ b/kadai1/edm20627/main.go
@@ -5,17 +5,16 @@ import (
 	"fmt"
 	"os"
 	"strings"
+
 	"github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627/imageconvert"
 )
 
-var supportedFormat = []string{"png", "jpg", "jpeg", "gif"}
-
 var ci = imageconvert.ConvertImage{}
 
 func init() {
-	flag.StringVar(&ci.From, "from", "jpg", "変更元")
+	flag.StringVar(&ci.From, "-from", "jpg", "変更元")
 	flag.StringVar(&ci.From, "f", "jpg", "変更元(short)")
-	flag.StringVar(&ci.To, "to", "png", "変更先")
+	flag.StringVar(&ci.To, "-to", "png", "変更先")
 	flag.StringVar(&ci.To, "t", "png", "変更先(short)")
 }
 
@@ -23,8 +22,8 @@ func main() {
 	flag.Parse()
 	dirs := flag.Args()
 
-	if !valid(ci.From) || !valid(ci.To) {
-		fmt.Fprintln(os.Stderr, "supported formt is "+strings.Join(supportedFormat, ", "))
+	if !ci.Valid() {
+		fmt.Fprintln(os.Stderr, "supported formt is "+strings.Join(imageconvert.SupportedFormat, ", "))
 		os.Exit(1)
 	}
 
@@ -38,12 +37,3 @@ func main() {
 		fmt.Fprintln(os.Stderr, err)
 	}
 }
-
-func valid(extension string) bool {
-	for _, v := range supportedFormat {
-		if v == extension {
-			return true
-		}
-	}
-	return false
-}

From 7776099779dd608ff046a3f2320983623e7210f1 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 04:23:47 +0900
Subject: [PATCH 05/24] =?UTF-8?q?=E5=BE=AE=E4=BF=AE=E6=AD=A3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/imageconvert/imageconvert.go | 4 +---
 kadai1/edm20627/main.go                      | 2 ++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kadai1/edm20627/imageconvert/imageconvert.go b/kadai1/edm20627/imageconvert/imageconvert.go
index 8e57c38b..8794eff8 100644
--- a/kadai1/edm20627/imageconvert/imageconvert.go
+++ b/kadai1/edm20627/imageconvert/imageconvert.go
@@ -21,7 +21,6 @@ func (ci *ConvertImage) Get(dirs []string) error {
 	for _, dir := range dirs {
 		err := filepath.Walk(dir,
 			func(path string, info os.FileInfo, err error) error {
-
 				if info == nil {
 					return errors.New(path + " is not directory")
 				}
@@ -34,7 +33,6 @@ func (ci *ConvertImage) Get(dirs []string) error {
 		if err != nil {
 			return err
 		}
-		return nil
 	}
 	return nil
 }
@@ -74,7 +72,7 @@ func convert(path string, To string) error {
 		return err
 	}
 
-	out, err := os.Create(path[:len(path)-len(filepath.Ext(path))] + "." + To)
+	out, err := os.Create(path[:len(path)-len(filepath.Ext(path))+1] + To)
 	if err != nil {
 		return err
 	}
diff --git a/kadai1/edm20627/main.go b/kadai1/edm20627/main.go
index a719f783..c9b89e45 100644
--- a/kadai1/edm20627/main.go
+++ b/kadai1/edm20627/main.go
@@ -30,10 +30,12 @@ func main() {
 	err := ci.Get(dirs)
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
 	}
 
 	err = ci.Convert()
 	if err != nil {
 		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
 	}
 }

From a504b57d3a7f1dbc26fe9d59eae876e3ac13c7e1 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 04:26:20 +0900
Subject: [PATCH 06/24] =?UTF-8?q?=E7=94=BB=E5=83=8F=E5=A4=89=E6=8F=9B?=
 =?UTF-8?q?=E5=87=A6=E7=90=86=E3=81=AE=E3=82=A8=E3=83=A9=E3=83=BC=E3=83=8F?=
 =?UTF-8?q?=E3=83=B3=E3=83=89=E3=83=AA=E3=83=B3=E3=82=B0=E8=BF=BD=E5=8A=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/imageconvert/imageconvert.go | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/kadai1/edm20627/imageconvert/imageconvert.go b/kadai1/edm20627/imageconvert/imageconvert.go
index 8794eff8..42125d34 100644
--- a/kadai1/edm20627/imageconvert/imageconvert.go
+++ b/kadai1/edm20627/imageconvert/imageconvert.go
@@ -80,11 +80,17 @@ func convert(path string, To string) error {
 
 	switch To {
 	case "png":
-		png.Encode(out, img)
+		if err := png.Encode(out, img); err != nil {
+			return err
+		}
 	case "jpg", "jpeg":
-		jpeg.Encode(out, img, nil)
+		if err := jpeg.Encode(out, img, nil); err != nil {
+			return err
+		}
 	case "gif":
-		gif.Encode(out, img, nil)
+		if err := gif.Encode(out, img, nil); err != nil {
+			return err
+		}
 	}
 	return nil
 }

From 44bbfd1b62726dff7ebb3c248d017e1d24a37e0e Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 05:00:58 +0900
Subject: [PATCH 07/24] =?UTF-8?q?=E5=89=8A=E9=99=A4=E3=83=95=E3=83=A9?=
 =?UTF-8?q?=E3=82=B0=E3=81=AE=E8=BF=BD=E5=8A=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/imageconvert/imageconvert.go | 20 ++++++++++++++------
 kadai1/edm20627/main.go                      |  2 ++
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/kadai1/edm20627/imageconvert/imageconvert.go b/kadai1/edm20627/imageconvert/imageconvert.go
index 42125d34..97da376d 100644
--- a/kadai1/edm20627/imageconvert/imageconvert.go
+++ b/kadai1/edm20627/imageconvert/imageconvert.go
@@ -13,8 +13,9 @@ import (
 var SupportedFormat = []string{"png", "jpg", "jpeg", "gif"}
 
 type ConvertImage struct {
-	filepaths []string
-	From, To  string
+	filepaths    []string
+	From, To     string
+	DeleteOption bool
 }
 
 func (ci *ConvertImage) Get(dirs []string) error {
@@ -39,7 +40,7 @@ func (ci *ConvertImage) Get(dirs []string) error {
 
 func (ci *ConvertImage) Convert() error {
 	for _, path := range ci.filepaths {
-		err := convert(path, ci.To)
+		err := convert(path, ci.To, ci.DeleteOption)
 		if err != nil {
 			return err
 		}
@@ -60,7 +61,7 @@ func (ci *ConvertImage) Valid() bool {
 	return false
 }
 
-func convert(path string, To string) error {
+func convert(path string, to string, deleteOption bool) error {
 	f, err := os.Open(path)
 	if err != nil {
 		return err
@@ -72,13 +73,13 @@ func convert(path string, To string) error {
 		return err
 	}
 
-	out, err := os.Create(path[:len(path)-len(filepath.Ext(path))+1] + To)
+	out, err := os.Create(path[:len(path)-len(filepath.Ext(path))+1] + to)
 	if err != nil {
 		return err
 	}
 	defer out.Close()
 
-	switch To {
+	switch to {
 	case "png":
 		if err := png.Encode(out, img); err != nil {
 			return err
@@ -92,5 +93,12 @@ func convert(path string, To string) error {
 			return err
 		}
 	}
+
+	if deleteOption {
+		if err := os.Remove(path); err != nil {
+			return err
+		}
+	}
+
 	return nil
 }
diff --git a/kadai1/edm20627/main.go b/kadai1/edm20627/main.go
index c9b89e45..4536126e 100644
--- a/kadai1/edm20627/main.go
+++ b/kadai1/edm20627/main.go
@@ -16,6 +16,8 @@ func init() {
 	flag.StringVar(&ci.From, "f", "jpg", "変更元(short)")
 	flag.StringVar(&ci.To, "-to", "png", "変更先")
 	flag.StringVar(&ci.To, "t", "png", "変更先(short)")
+	flag.BoolVar(&ci.DeleteOption, "-delete", false, "削除フラグ")
+	flag.BoolVar(&ci.DeleteOption, "d", false, "削除フラグ(short)")
 }
 
 func main() {

From 87c6eb376ef264b6776be9bff75b8c9424687e76 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 05:36:07 +0900
Subject: [PATCH 08/24] =?UTF-8?q?GoDoc=E3=82=92=E7=94=9F=E6=88=90=E3=81=99?=
 =?UTF-8?q?=E3=82=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/go.mod                       |  2 ++
 kadai1/edm20627/go.sum                       | 28 ++++++++++++++++++++
 kadai1/edm20627/imageconvert/imageconvert.go |  4 +++
 kadai1/edm20627/main.go                      | 12 ++++-----
 4 files changed, 40 insertions(+), 6 deletions(-)
 create mode 100644 kadai1/edm20627/go.sum

diff --git a/kadai1/edm20627/go.mod b/kadai1/edm20627/go.mod
index 02e3b462..2c8176d4 100644
--- a/kadai1/edm20627/go.mod
+++ b/kadai1/edm20627/go.mod
@@ -1,3 +1,5 @@
 module github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627
 
 go 1.15
+
+require golang.org/x/tools v0.1.0 // indirect
diff --git a/kadai1/edm20627/go.sum b/kadai1/edm20627/go.sum
new file mode 100644
index 00000000..e3951444
--- /dev/null
+++ b/kadai1/edm20627/go.sum
@@ -0,0 +1,28 @@
+github.com/edm20627/gopherdojo-studyroom v0.0.0-20200808023015-dd3cfe05cf7a h1:qrHQJOIqb8bC1Ulkv5H6eGp3DZgRA93eLUJr6XK/Gjk=
+github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
+golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20201021035429-f5854403a974 h1:IX6qOQeG5uLjB/hjjwjedwfjND0hgjPMMyO1RoIXQNI=
+golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4 h1:myAQVi0cGEoqQVR5POX+8RR2mrocKqNN1hmeMqhX27k=
+golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.0 h1:po9/4sTYwZU9lPhi1tOrb4hCv3qrhiQ77LZfGa2OjwY=
+golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/kadai1/edm20627/imageconvert/imageconvert.go b/kadai1/edm20627/imageconvert/imageconvert.go
index 97da376d..f8817128 100644
--- a/kadai1/edm20627/imageconvert/imageconvert.go
+++ b/kadai1/edm20627/imageconvert/imageconvert.go
@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 )
 
+// Supported extensions.
 var SupportedFormat = []string{"png", "jpg", "jpeg", "gif"}
 
 type ConvertImage struct {
@@ -18,6 +19,7 @@ type ConvertImage struct {
 	DeleteOption bool
 }
 
+// Get the target files for image conversion.
 func (ci *ConvertImage) Get(dirs []string) error {
 	for _, dir := range dirs {
 		err := filepath.Walk(dir,
@@ -38,6 +40,7 @@ func (ci *ConvertImage) Get(dirs []string) error {
 	return nil
 }
 
+// Perform image conversion.
 func (ci *ConvertImage) Convert() error {
 	for _, path := range ci.filepaths {
 		err := convert(path, ci.To, ci.DeleteOption)
@@ -48,6 +51,7 @@ func (ci *ConvertImage) Convert() error {
 	return nil
 }
 
+// Check for supported extensions.
 func (ci *ConvertImage) Valid() bool {
 	for _, v := range SupportedFormat {
 		if v == ci.From {
diff --git a/kadai1/edm20627/main.go b/kadai1/edm20627/main.go
index 4536126e..407d2409 100644
--- a/kadai1/edm20627/main.go
+++ b/kadai1/edm20627/main.go
@@ -12,12 +12,12 @@ import (
 var ci = imageconvert.ConvertImage{}
 
 func init() {
-	flag.StringVar(&ci.From, "-from", "jpg", "変更元")
-	flag.StringVar(&ci.From, "f", "jpg", "変更元(short)")
-	flag.StringVar(&ci.To, "-to", "png", "変更先")
-	flag.StringVar(&ci.To, "t", "png", "変更先(short)")
-	flag.BoolVar(&ci.DeleteOption, "-delete", false, "削除フラグ")
-	flag.BoolVar(&ci.DeleteOption, "d", false, "削除フラグ(short)")
+	flag.StringVar(&ci.From, "-from", "jpg", "Specify the image format before conversion")
+	flag.StringVar(&ci.From, "f", "jpg", "Specify the image format before conversion (short)")
+	flag.StringVar(&ci.To, "-to", "png", "Specify the converted image format")
+	flag.StringVar(&ci.To, "t", "png", "Specify the converted image format (short)")
+	flag.BoolVar(&ci.DeleteOption, "-delete", false, "Delete the image before conversion")
+	flag.BoolVar(&ci.DeleteOption, "d", false, "Delete the image before conversion (short)")
 }
 
 func main() {

From 44e95d364d308fec5e6d4bc20b85ae1748b11c95 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 05:43:50 +0900
Subject: [PATCH 09/24] =?UTF-8?q?=E3=82=B5=E3=83=B3=E3=83=97=E3=83=AB?=
 =?UTF-8?q?=E7=94=BB=E5=83=8F=E3=82=92=E8=BF=BD=E5=8A=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/sample_image/.DS_Store        | Bin 0 -> 8196 bytes
 kadai1/edm20627/sample_image/hoge/.DS_Store   | Bin 0 -> 6148 bytes
 kadai1/edm20627/sample_image/hoge/sample3.png | Bin 0 -> 1342 bytes
 kadai1/edm20627/sample_image/hoge/sample4.png | Bin 0 -> 2294 bytes
 kadai1/edm20627/sample_image/sample.jpg       | Bin 0 -> 2539 bytes
 kadai1/edm20627/sample_image/sample2.jpg      | Bin 0 -> 5682 bytes
 6 files changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 kadai1/edm20627/sample_image/.DS_Store
 create mode 100644 kadai1/edm20627/sample_image/hoge/.DS_Store
 create mode 100644 kadai1/edm20627/sample_image/hoge/sample3.png
 create mode 100644 kadai1/edm20627/sample_image/hoge/sample4.png
 create mode 100644 kadai1/edm20627/sample_image/sample.jpg
 create mode 100644 kadai1/edm20627/sample_image/sample2.jpg

diff --git a/kadai1/edm20627/sample_image/.DS_Store b/kadai1/edm20627/sample_image/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..6e722ea79846a21c0f5fa61c81690b3f04c02911
GIT binary patch
literal 8196
zcmeHMU2GLa6rS(4h1mt#r4(797jCRotOZ(V3-S|gf1v_GxTP(nTJF8OwkzA+dUx+F
zP^%^Ci!sK(=mX;4gD*yn4;sb9sKH2L;)6C(jPPROi$3sT6nW4yJKLr$@WO+^u#?Q3
zIp@ro*>mPQJ9qXn#?X>C>KW4+W1Om>+5&2>QG{O9t4b`Cln@2kv&^VBlCj+k@!woE
zIub+?h$0Y0Ac{Z~fhYnuLj>r|7KLBu+?U#@jUo_5;FgSlct0el3YrY*grvc%gPPz9
zK(v^|L7~1TIz$s8O@?$rQqoX?G$krc5neGM%}JgJ$0b8LA*nQH2rnN9S4Mb4L9jZ_
zp9qFCBqfd7C<0Lgu8x4XyBD(|=CVO%&b+^8Mr_OT>*{_$tf;tT-h9qgt}ap^NDaB8
zDL?J!y_R(Du;BKm{h>_Q?{Zyxx}VN;TjuD1R?+G@e%f-(TwrV&CJpKDu^hu4ZE^FC
z;RW-gq=IvWD+Ah!v9S$}jSaPl`o_l1<F$#gdpFe8CK@(2jgKpQS#|yP&LhLePmDb}
z{@5w$6~Z?IE1Toxt213RysVv}hZJL`{kFYAtNd;eyE5hXk5hgt>H_^hs!JWv$_wPq
zz7gMY9k1KWc|-@aGLJ&gnRT80IaBC+vaX#UcDw;?aW-vd^LE-dn{7K~oiM##-#q4v
zUZ3aY{MKM#uSK>(HlS&F&pcp~fmJZu$jqyl;|Y}a7A{?}x@yhZ4V$(m+dB77E-Ee4
z)N-|=r(k(j#x@U*T82M#DD7oU$FQ8iK8mU1TMt=gPFajvrOQbVo0D2;*`nK)>3VNI
zV?C0${Nq{`=W?z}eU+kp$omaif3Ir@OC!+emHO?R9~Sb~oJp+|tJV5lik9YG9=RZ=
zs8MSb%~QIL(gsV@^=duW4CSDm&X~3oHK<Ko+pY8zWE`ciT;0Nz-mE)3Ob_iz*>-&g
z*Us?=#lm~ip1*IzbZBkiLUX0A9}@Cr!!V7|1HD7v#kKEvpEs1wnfpcwb#kH(eGlis
zevw?v)NWY5JFVO=l$zxfECM&}ti(94O4i6tm=%$#WSx{MbZjkW>*#pg#rm1aM%Z!o
z3_HzUWACz$*k|l4`<9(&Kd}q!BKw8?&i-J3vcK46#88A1%)=5?B92w4!A3No37fDD
z?dZTRbmD&Wpcj2Oj5Hp`Q4GUD0gqz>C-F31#7lS?ui$OGk56z0pW-aO!q+&5@9{G(
z;36*JGXBPuSZS;*rpKyd>*OQHrt+kFHo9W#iJzGg;itTqf31{=w|DHkIa1>MLXiZE
z%a>FvT_rN3Y3q(@2uZ|Efovvt1H8`K(*UnQe$2%hrONUZE7kZx0<?K-Zi-E%o;F`3
z7@riQS0~iCRzi@M>>bs_&Lg->_U@W^T#HebNp{`(xT+OV4k>}{#u{P~GMhH5s#Z+d
zBz4<X63ap+*-X=j+~7Bk(ht}f_BlJpCJCj#vftPx_76BpQ9+oz6Kik}YO$7Zxfxrq
zHNfUhLgszgjV^Q(Iu8*(voJA;Ay~-4M?S#lNj!lk@f4oLb9f#v;1o{db-aN$@fO~}
z$M|9n7CUES5ns;4Vj-1tY}Xki*%WqX50AJTia?RH(#8G1{rcbkZ)onwD2hN7f&WJY
zP~4VkYoTYo-rH5&wG&j2P!&atn~*dxp+*c5^58m7boviN>L)^7GNcodl7`BE{vkmA
Tc#Y2g;8$vN{s$nu1)F~XD#Rz^

literal 0
HcmV?d00001

diff --git a/kadai1/edm20627/sample_image/hoge/.DS_Store b/kadai1/edm20627/sample_image/hoge/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..0c5cb0d66222f556bb6347da6a862e9cc33b766a
GIT binary patch
literal 6148
zcmeH~Jx{|h5QfjCLs6HGjQIl)+5y(6DjQ;{VC5@OC{S88>A;qs&U3a^wMxr~Ds(5^
zz4rOeXTO%>SVY`-oexC@BGN+@JExdEqT{M9=|qpB^K*PkAtSkvrF^xb&2fwj=-Kt9
zl4qH7YTM^mF6)=ubycs3sAMYN*qZa5ODYetAa+f=z?;g1{2EQ=o_--K?^VwS`i556
z8RHdWuV5iL*(14>E9^C%k~x<|X?9Ng9o_FeXO^1kIcr)GweV}wN;x`{;okYT_xMQE
zoY<0TDK!_d^&1y=k&6Rt9pmBJnv4Nsz!*5d0C%=ZuOHB?F<=ZB0~-eP`;efDS;Quw
z|8!vd69DYu_Cj0V5}K1l%px`c89`h~1w*QfPYf5*@h34Zi`WDV>Ee84=82VEe4#jB
z9e?7(#bp7_8Ux0_E(0f_JJ9?8=J5M}H_3X&fHCl|7;xRmbTVd3@osHxPVd?TeL__<
mt_iqFq2aG$V)ZIML%rZnv;k%jn}B!_`w{Rom@x+alz|_M8%iqx

literal 0
HcmV?d00001

diff --git a/kadai1/edm20627/sample_image/hoge/sample3.png b/kadai1/edm20627/sample_image/hoge/sample3.png
new file mode 100644
index 0000000000000000000000000000000000000000..02908b23efaf7d0ee46c3703acdb1b1be8fd9b50
GIT binary patch
literal 1342
zcmZ{kX;9J$7{>o;t($I}Www>I#dPd!jRlsunr0v*hMFSck@tP9CzyDm1|BJyx25HJ
z<N=0hT3%$5ikWvQ-Xe)7o+#phEq&Z+_L+I#-#qWk^X-{8&d5;rfb0ob000i?A>n8V
z)4$Kp(vmGV9@#CyURS6A6adN-<#z1%N&Fc{B-#J~f-e9-1PK7PB&UcO00;mBz?>Zb
zXk-GwZ@$^J#+m@IXVgd^gV4I=Tk*Q(+qZA7?umZ5^jkXq@f7NpKF<2ONGKHbvnL)s
zE=ArU2n50h<N^fperMNkSNDki-H@i{FFCo@ot?ud!;sRK%#DrB)U;PtwlPK~;Udu%
zt+Wx1Ar=+CYyHUH+}y6K@5n2t6N`6)L!X6)=ZM8(Pp@P)dx9MOA|<VCYKngo>Nh>J
zh%yLXSXh0Y^Y(QmYj}hQgX3)M;|RgoZXSu+P`^fIPjN}Z`^N5|knHX49UHq?Z@*M~
z$A|Z9qJ8|*8kxO({>sjdcx-(7ZB3hn6?uX?8~GqFij>dc%+%JkYs38Ex&f2C`K;_J
zH_yj$@x`mF>;Cu*TtMc^%G%<RASs3ZqKH9?E*Kk|x=(m|7abNDlr=KSb97GF+S(2Y
zdrmL=kegr2YVF?;Z92J7>KUD>>91B+*C!|E{qPxsLtl+eh&?@{5mC9_JtNMp6jQTE
zL*p>UyH1_k_;Jqk(vsj~8ygD8EibQ4Ow1-F(+djg2L`$3mLzh_3s!5N?wvsP0QXgS
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literal 0
HcmV?d00001


From f21ec02241a25ef9c8a5c0e09bc919b1d1fc6a85 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 11:06:37 +0900
Subject: [PATCH 10/24] =?UTF-8?q?README.md=20=E8=BF=BD=E5=8A=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 kadai1/edm20627/README.md

diff --git a/kadai1/edm20627/README.md b/kadai1/edm20627/README.md
new file mode 100644
index 00000000..789cb3e5
--- /dev/null
+++ b/kadai1/edm20627/README.md
@@ -0,0 +1,12 @@
+# 画像変換コマンド
+指定ディレクトリ以下の画像ファイルを変換します。
+
+## 使用方法
+
+`cmd --from jpg --to png ディレクトリ`
+
+## オプション
+
+* `--from(-f)` 変換対象の画像形式(デフォルト: jpg)
+* `--to(-t)` 変換後の画像形式(デフォルト: png)
+* `--delete(-d)` 変換前の画像を削除(デフォルト: 無効)

From 49c5e89e11f96d2f85eb987453eed7b8067e1a1d Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 23:46:18 +0900
Subject: [PATCH 11/24] .gitignore

---
 kadai1/edm20627/sample_image/.DS_Store       | Bin 8196 -> 0 bytes
 kadai1/edm20627/sample_image/hoge/.DS_Store  | Bin 6148 -> 0 bytes
 kadai1/edm20627/sample_image/hoge/.gitignore |  17 +++++++++++++++++
 3 files changed, 17 insertions(+)
 delete mode 100644 kadai1/edm20627/sample_image/.DS_Store
 delete mode 100644 kadai1/edm20627/sample_image/hoge/.DS_Store
 create mode 100644 kadai1/edm20627/sample_image/hoge/.gitignore

diff --git a/kadai1/edm20627/sample_image/.DS_Store b/kadai1/edm20627/sample_image/.DS_Store
deleted file mode 100644
index 6e722ea79846a21c0f5fa61c81690b3f04c02911..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 8196
zcmeHMU2GLa6rS(4h1mt#r4(797jCRotOZ(V3-S|gf1v_GxTP(nTJF8OwkzA+dUx+F
zP^%^Ci!sK(=mX;4gD*yn4;sb9sKH2L;)6C(jPPROi$3sT6nW4yJKLr$@WO+^u#?Q3
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zBz4<X63ap+*-X=j+~7Bk(ht}f_BlJpCJCj#vftPx_76BpQ9+oz6Kik}YO$7Zxfxrq
zHNfUhLgszgjV^Q(Iu8*(voJA;Ay~-4M?S#lNj!lk@f4oLb9f#v;1o{db-aN$@fO~}
z$M|9n7CUES5ns;4Vj-1tY}Xki*%WqX50AJTia?RH(#8G1{rcbkZ)onwD2hN7f&WJY
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Tc#Y2g;8$vN{s$nu1)F~XD#Rz^

diff --git a/kadai1/edm20627/sample_image/hoge/.DS_Store b/kadai1/edm20627/sample_image/hoge/.DS_Store
deleted file mode 100644
index 0c5cb0d66222f556bb6347da6a862e9cc33b766a..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 6148
zcmeH~Jx{|h5QfjCLs6HGjQIl)+5y(6DjQ;{VC5@OC{S88>A;qs&U3a^wMxr~Ds(5^
zz4rOeXTO%>SVY`-oexC@BGN+@JExdEqT{M9=|qpB^K*PkAtSkvrF^xb&2fwj=-Kt9
zl4qH7YTM^mF6)=ubycs3sAMYN*qZa5ODYetAa+f=z?;g1{2EQ=o_--K?^VwS`i556
z8RHdWuV5iL*(14>E9^C%k~x<|X?9Ng9o_FeXO^1kIcr)GweV}wN;x`{;okYT_xMQE
zoY<0TDK!_d^&1y=k&6Rt9pmBJnv4Nsz!*5d0C%=ZuOHB?F<=ZB0~-eP`;efDS;Quw
z|8!vd69DYu_Cj0V5}K1l%px`c89`h~1w*QfPYf5*@h34Zi`WDV>Ee84=82VEe4#jB
z9e?7(#bp7_8Ux0_E(0f_JJ9?8=J5M}H_3X&fHCl|7;xRmbTVd3@osHxPVd?TeL__<
mt_iqFq2aG$V)ZIML%rZnv;k%jn}B!_`w{Rom@x+alz|_M8%iqx

diff --git a/kadai1/edm20627/sample_image/hoge/.gitignore b/kadai1/edm20627/sample_image/hoge/.gitignore
new file mode 100644
index 00000000..6ecd33cb
--- /dev/null
+++ b/kadai1/edm20627/sample_image/hoge/.gitignore
@@ -0,0 +1,17 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+.DS_store

From 74fabfab6a6df839ea39af341855cd1c103f59d6 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 26 Feb 2021 23:50:32 +0900
Subject: [PATCH 12/24] =?UTF-8?q?go=20mod=20tidy=20=E5=AE=9F=E8=A1=8C'?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/go.mod |  2 --
 kadai1/edm20627/go.sum | 28 ----------------------------
 2 files changed, 30 deletions(-)
 delete mode 100644 kadai1/edm20627/go.sum

diff --git a/kadai1/edm20627/go.mod b/kadai1/edm20627/go.mod
index 2c8176d4..02e3b462 100644
--- a/kadai1/edm20627/go.mod
+++ b/kadai1/edm20627/go.mod
@@ -1,5 +1,3 @@
 module github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627
 
 go 1.15
-
-require golang.org/x/tools v0.1.0 // indirect
diff --git a/kadai1/edm20627/go.sum b/kadai1/edm20627/go.sum
deleted file mode 100644
index e3951444..00000000
--- a/kadai1/edm20627/go.sum
+++ /dev/null
@@ -1,28 +0,0 @@
-github.com/edm20627/gopherdojo-studyroom v0.0.0-20200808023015-dd3cfe05cf7a h1:qrHQJOIqb8bC1Ulkv5H6eGp3DZgRA93eLUJr6XK/Gjk=
-github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
-golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20201021035429-f5854403a974 h1:IX6qOQeG5uLjB/hjjwjedwfjND0hgjPMMyO1RoIXQNI=
-golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4 h1:myAQVi0cGEoqQVR5POX+8RR2mrocKqNN1hmeMqhX27k=
-golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.1.0 h1:po9/4sTYwZU9lPhi1tOrb4hCv3qrhiQ77LZfGa2OjwY=
-golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

From f4be072568e42dbcbae9b80f275869d03336c7a9 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Wed, 7 Apr 2021 14:55:26 +0900
Subject: [PATCH 13/24] =?UTF-8?q?.gitignore=E3=81=AE=E9=85=8D=E7=BD=AE?=
 =?UTF-8?q?=E5=A4=89=E6=9B=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai1/edm20627/{sample_image/hoge => }/.gitignore | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename kadai1/edm20627/{sample_image/hoge => }/.gitignore (100%)

diff --git a/kadai1/edm20627/sample_image/hoge/.gitignore b/kadai1/edm20627/.gitignore
similarity index 100%
rename from kadai1/edm20627/sample_image/hoge/.gitignore
rename to kadai1/edm20627/.gitignore

From 183f52ff23d7838fba5d3b909d7a7c7dea9d6ae4 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Wed, 7 Apr 2021 15:00:19 +0900
Subject: [PATCH 14/24] =?UTF-8?q?=E8=AA=B2=E9=A1=8C1=E3=82=92=E3=82=B3?=
 =?UTF-8?q?=E3=83=94=E3=83=BC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/.gitignore                    |  17 +++
 kadai2/edm20627/README.md                     |  12 ++
 kadai2/edm20627/go.mod                        |   3 +
 kadai2/edm20627/imageconvert/imageconvert.go  | 108 ++++++++++++++++++
 kadai2/edm20627/main.go                       |  43 +++++++
 kadai2/edm20627/sample_image/hoge/sample3.png | Bin 0 -> 1342 bytes
 kadai2/edm20627/sample_image/hoge/sample4.png | Bin 0 -> 2294 bytes
 kadai2/edm20627/sample_image/sample.jpg       | Bin 0 -> 2539 bytes
 kadai2/edm20627/sample_image/sample2.jpg      | Bin 0 -> 5682 bytes
 9 files changed, 183 insertions(+)
 create mode 100644 kadai2/edm20627/.gitignore
 create mode 100644 kadai2/edm20627/README.md
 create mode 100644 kadai2/edm20627/go.mod
 create mode 100644 kadai2/edm20627/imageconvert/imageconvert.go
 create mode 100644 kadai2/edm20627/main.go
 create mode 100644 kadai2/edm20627/sample_image/hoge/sample3.png
 create mode 100644 kadai2/edm20627/sample_image/hoge/sample4.png
 create mode 100644 kadai2/edm20627/sample_image/sample.jpg
 create mode 100644 kadai2/edm20627/sample_image/sample2.jpg

diff --git a/kadai2/edm20627/.gitignore b/kadai2/edm20627/.gitignore
new file mode 100644
index 00000000..6ecd33cb
--- /dev/null
+++ b/kadai2/edm20627/.gitignore
@@ -0,0 +1,17 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+.DS_store
diff --git a/kadai2/edm20627/README.md b/kadai2/edm20627/README.md
new file mode 100644
index 00000000..789cb3e5
--- /dev/null
+++ b/kadai2/edm20627/README.md
@@ -0,0 +1,12 @@
+# 画像変換コマンド
+指定ディレクトリ以下の画像ファイルを変換します。
+
+## 使用方法
+
+`cmd --from jpg --to png ディレクトリ`
+
+## オプション
+
+* `--from(-f)` 変換対象の画像形式(デフォルト: jpg)
+* `--to(-t)` 変換後の画像形式(デフォルト: png)
+* `--delete(-d)` 変換前の画像を削除(デフォルト: 無効)
diff --git a/kadai2/edm20627/go.mod b/kadai2/edm20627/go.mod
new file mode 100644
index 00000000..02e3b462
--- /dev/null
+++ b/kadai2/edm20627/go.mod
@@ -0,0 +1,3 @@
+module github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627
+
+go 1.15
diff --git a/kadai2/edm20627/imageconvert/imageconvert.go b/kadai2/edm20627/imageconvert/imageconvert.go
new file mode 100644
index 00000000..f8817128
--- /dev/null
+++ b/kadai2/edm20627/imageconvert/imageconvert.go
@@ -0,0 +1,108 @@
+package imageconvert
+
+import (
+	"errors"
+	"image"
+	"image/gif"
+	"image/jpeg"
+	"image/png"
+	"os"
+	"path/filepath"
+)
+
+// Supported extensions.
+var SupportedFormat = []string{"png", "jpg", "jpeg", "gif"}
+
+type ConvertImage struct {
+	filepaths    []string
+	From, To     string
+	DeleteOption bool
+}
+
+// Get the target files for image conversion.
+func (ci *ConvertImage) Get(dirs []string) error {
+	for _, dir := range dirs {
+		err := filepath.Walk(dir,
+			func(path string, info os.FileInfo, err error) error {
+				if info == nil {
+					return errors.New(path + " is not directory")
+				}
+				if info.IsDir() || filepath.Ext(path)[1:] != ci.From {
+					return nil
+				}
+				ci.filepaths = append(ci.filepaths, path)
+				return nil
+			})
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// Perform image conversion.
+func (ci *ConvertImage) Convert() error {
+	for _, path := range ci.filepaths {
+		err := convert(path, ci.To, ci.DeleteOption)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// Check for supported extensions.
+func (ci *ConvertImage) Valid() bool {
+	for _, v := range SupportedFormat {
+		if v == ci.From {
+			for _, v := range SupportedFormat {
+				if v == ci.To {
+					return true
+				}
+			}
+		}
+	}
+	return false
+}
+
+func convert(path string, to string, deleteOption bool) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	img, _, err := image.Decode(f)
+	if err != nil {
+		return err
+	}
+
+	out, err := os.Create(path[:len(path)-len(filepath.Ext(path))+1] + to)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	switch to {
+	case "png":
+		if err := png.Encode(out, img); err != nil {
+			return err
+		}
+	case "jpg", "jpeg":
+		if err := jpeg.Encode(out, img, nil); err != nil {
+			return err
+		}
+	case "gif":
+		if err := gif.Encode(out, img, nil); err != nil {
+			return err
+		}
+	}
+
+	if deleteOption {
+		if err := os.Remove(path); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/kadai2/edm20627/main.go b/kadai2/edm20627/main.go
new file mode 100644
index 00000000..407d2409
--- /dev/null
+++ b/kadai2/edm20627/main.go
@@ -0,0 +1,43 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627/imageconvert"
+)
+
+var ci = imageconvert.ConvertImage{}
+
+func init() {
+	flag.StringVar(&ci.From, "-from", "jpg", "Specify the image format before conversion")
+	flag.StringVar(&ci.From, "f", "jpg", "Specify the image format before conversion (short)")
+	flag.StringVar(&ci.To, "-to", "png", "Specify the converted image format")
+	flag.StringVar(&ci.To, "t", "png", "Specify the converted image format (short)")
+	flag.BoolVar(&ci.DeleteOption, "-delete", false, "Delete the image before conversion")
+	flag.BoolVar(&ci.DeleteOption, "d", false, "Delete the image before conversion (short)")
+}
+
+func main() {
+	flag.Parse()
+	dirs := flag.Args()
+
+	if !ci.Valid() {
+		fmt.Fprintln(os.Stderr, "supported formt is "+strings.Join(imageconvert.SupportedFormat, ", "))
+		os.Exit(1)
+	}
+
+	err := ci.Get(dirs)
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+
+	err = ci.Convert()
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}
diff --git a/kadai2/edm20627/sample_image/hoge/sample3.png b/kadai2/edm20627/sample_image/hoge/sample3.png
new file mode 100644
index 0000000000000000000000000000000000000000..02908b23efaf7d0ee46c3703acdb1b1be8fd9b50
GIT binary patch
literal 1342
zcmZ{kX;9J$7{>o;t($I}Www>I#dPd!jRlsunr0v*hMFSck@tP9CzyDm1|BJyx25HJ
z<N=0hT3%$5ikWvQ-Xe)7o+#phEq&Z+_L+I#-#qWk^X-{8&d5;rfb0ob000i?A>n8V
z)4$Kp(vmGV9@#CyURS6A6adN-<#z1%N&Fc{B-#J~f-e9-1PK7PB&UcO00;mBz?>Zb
zXk-GwZ@$^J#+m@IXVgd^gV4I=Tk*Q(+qZA7?umZ5^jkXq@f7NpKF<2ONGKHbvnL)s
zE=ArU2n50h<N^fperMNkSNDki-H@i{FFCo@ot?ud!;sRK%#DrB)U;PtwlPK~;Udu%
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zh%yLXSXh0Y^Y(QmYj}hQgX3)M;|RgoZXSu+P`^fIPjN}Z`^N5|knHX49UHq?Z@*M~
z$A|Z9qJ8|*8kxO({>sjdcx-(7ZB3hn6?uX?8~GqFij>dc%+%JkYs38Ex&f2C`K;_J
zH_yj$@x`mF>;Cu*TtMc^%G%<RASs3ZqKH9?E*Kk|x=(m|7abNDlr=KSb97GF+S(2Y
zdrmL=kegr2YVF?;Z92J7>KUD>>91B+*C!|E{qPxsLtl+eh&?@{5mC9_JtNMp6jQTE
zL*p>UyH1_k_;Jqk(vsj~8ygD8EibQ4Ow1-F(+djg2L`$3mLzh_3s!5N?wvsP0QXgS
zGX@*^w|9!CcQV>EB005ecXu}+@QDdFf)JcFG&K2=&P3?mr_$bYzs_xK@3?y=wRa4{
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zt-|uTP#tF>OrO$+bN?%>?%F|4h5T7dt|Ec5kl&V7?V;AxZf+q)ZZ)e~WtbkZZqW%m
z?0BdSl-_bt#yd8v`aJE|1f_#M+ngFlwWeP4wuV`Hb&+-ahhwVQ1|uwK&9z}U$kl$Q
zYLMV_UZ#g4ME}#p1l{OG7E)`4Q^Jrp@tHr)?CR@Vk-9=AC^9{(o<f%?V<TuK4+Wo|
zQ*RX<yi21j3dWkpyTWdvJ4CU<n!CGh3ODB&&jfR3aRs|IuRBPYCsAvcTeE!UP{AZW
zyGH3yap6WdYll>^vkbD=YT}!7U3qIrge~PBHl-X=banlcZ*Et+!v)4BMVo@viTzPC
zM3J1Lc04*`gL6z$zVmp5Io`=0@2uhI?<@hJ0#<=2gH@DOR54&R4KPGQ<@zPCx&|10
h@K1}H{{*~zoZMZ4{yz|opZNX&0X>8voDQ>#`WGexrZfNm

literal 0
HcmV?d00001

diff --git a/kadai2/edm20627/sample_image/hoge/sample4.png b/kadai2/edm20627/sample_image/hoge/sample4.png
new file mode 100644
index 0000000000000000000000000000000000000000..fc271cd818acd70231a44ce50f3df900ef8a2d0e
GIT binary patch
literal 2294
zcma)8S5Om(7LBs2K6gRaMp?Uy4i*SS5KxpB2uPLQq=p{Egx*^aAw*i}O-djkAcT(e
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ze9e3-l#oEe^e~eP_7_wKL__Y@PI6}ssT@bZ<;t2t{hEhAMMaulVyeBl29Cwysreg=
zDT6gVh12=Snyv$=x<mQo(;YuMGgp|Ob4Xa&NsC?1ryoIANqA9#$l#ri?UsZlMj}Oe
z&(xg+I7WtBzLq~5>O1A@#Yd2kfE)Yl%-D0a2u&mRpXI&qe;^%fmJ>Lpeef7|8}I^C
z{YUBhai3Re&hJ(9T&CCwEb_sU3>L>;$PfZ^-Xkmg7I;V!fhvDyJe_LeWa4o#qONVM
zGPAC*FVs(VSYeK|pJ8&192g~-c6jW!ZsTcD{GX!R&jH&s8sPa3aiU;0uZe5*FFPf&
p*<$t^K0cWSHB^63hC`(K3pMpo<G+6+|M5Zc|Kfja1k?Gie*tY7EbagR

literal 0
HcmV?d00001


From 5fefe04f8bbdd0599968c9c34aed94addab8c0b5 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 9 Apr 2021 01:35:54 +0900
Subject: [PATCH 15/24] =?UTF-8?q?go=20module=E3=83=91=E3=82=B9=E5=A4=89?=
 =?UTF-8?q?=E6=9B=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/go.mod  | 2 +-
 kadai2/edm20627/go.sum  | 1 +
 kadai2/edm20627/main.go | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)
 create mode 100644 kadai2/edm20627/go.sum

diff --git a/kadai2/edm20627/go.mod b/kadai2/edm20627/go.mod
index 02e3b462..91235c33 100644
--- a/kadai2/edm20627/go.mod
+++ b/kadai2/edm20627/go.mod
@@ -1,3 +1,3 @@
-module github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627
+module github.com/edm20627/gopherdojo-studyroom/kadai2/edm20627
 
 go 1.15
diff --git a/kadai2/edm20627/go.sum b/kadai2/edm20627/go.sum
new file mode 100644
index 00000000..25c5d358
--- /dev/null
+++ b/kadai2/edm20627/go.sum
@@ -0,0 +1 @@
+github.com/edm20627/gopherdojo-studyroom v0.0.0-20200808023015-dd3cfe05cf7a h1:qrHQJOIqb8bC1Ulkv5H6eGp3DZgRA93eLUJr6XK/Gjk=
diff --git a/kadai2/edm20627/main.go b/kadai2/edm20627/main.go
index 407d2409..1bdb38bb 100644
--- a/kadai2/edm20627/main.go
+++ b/kadai2/edm20627/main.go
@@ -6,7 +6,7 @@ import (
 	"os"
 	"strings"
 
-	"github.com/edm20627/gopherdojo-studyroom/kadai1/edm20627/imageconvert"
+	"github.com/edm20627/gopherdojo-studyroom/kadai2/edm20627/imageconvert"
 )
 
 var ci = imageconvert.ConvertImage{}

From e1ba6c2c744c68bb6cb40b08e9a4cad5ca9cd19c Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Fri, 9 Apr 2021 01:37:27 +0900
Subject: [PATCH 16/24] =?UTF-8?q?=E3=83=AA=E3=83=95=E3=82=A1=E3=82=AF?=
 =?UTF-8?q?=E3=82=BF=E3=83=AA=E3=83=B3=E3=82=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/imageconvert/imageconvert.go | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/kadai2/edm20627/imageconvert/imageconvert.go b/kadai2/edm20627/imageconvert/imageconvert.go
index f8817128..9cae9b8d 100644
--- a/kadai2/edm20627/imageconvert/imageconvert.go
+++ b/kadai2/edm20627/imageconvert/imageconvert.go
@@ -14,13 +14,17 @@ import (
 var SupportedFormat = []string{"png", "jpg", "jpeg", "gif"}
 
 type ConvertImage struct {
-	filepaths    []string
+	Filepaths    []string
 	From, To     string
 	DeleteOption bool
 }
 
 // Get the target files for image conversion.
 func (ci *ConvertImage) Get(dirs []string) error {
+	if len(dirs) == 0 {
+		return errors.New("Need to specify directory or file")
+	}
+
 	for _, dir := range dirs {
 		err := filepath.Walk(dir,
 			func(path string, info os.FileInfo, err error) error {
@@ -30,7 +34,7 @@ func (ci *ConvertImage) Get(dirs []string) error {
 				if info.IsDir() || filepath.Ext(path)[1:] != ci.From {
 					return nil
 				}
-				ci.filepaths = append(ci.filepaths, path)
+				ci.Filepaths = append(ci.Filepaths, path)
 				return nil
 			})
 		if err != nil {
@@ -42,7 +46,7 @@ func (ci *ConvertImage) Get(dirs []string) error {
 
 // Perform image conversion.
 func (ci *ConvertImage) Convert() error {
-	for _, path := range ci.filepaths {
+	for _, path := range ci.Filepaths {
 		err := convert(path, ci.To, ci.DeleteOption)
 		if err != nil {
 			return err

From 7caa18ba6e7e00f2c689b0e70c1b7fb341d885d1 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Sat, 17 Apr 2021 22:45:08 +0900
Subject: [PATCH 17/24] =?UTF-8?q?=E3=83=86=E3=82=B9=E3=83=88=E8=BF=BD?=
 =?UTF-8?q?=E5=8A=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/imageconvert/imageconvert.go  |   9 +-
 .../imageconvert/imageconvert_test.go         | 167 ++++++++++++++++++
 2 files changed, 174 insertions(+), 2 deletions(-)
 create mode 100644 kadai2/edm20627/imageconvert/imageconvert_test.go

diff --git a/kadai2/edm20627/imageconvert/imageconvert.go b/kadai2/edm20627/imageconvert/imageconvert.go
index 9cae9b8d..dc182741 100644
--- a/kadai2/edm20627/imageconvert/imageconvert.go
+++ b/kadai2/edm20627/imageconvert/imageconvert.go
@@ -13,6 +13,11 @@ import (
 // Supported extensions.
 var SupportedFormat = []string{"png", "jpg", "jpeg", "gif"}
 
+var (
+	ErrNotSpecified = errors.New("Need to specify directory or file")
+	ErrMotDirectory = errors.New("Specify directory or file is not directory")
+)
+
 type ConvertImage struct {
 	Filepaths    []string
 	From, To     string
@@ -22,14 +27,14 @@ type ConvertImage struct {
 // Get the target files for image conversion.
 func (ci *ConvertImage) Get(dirs []string) error {
 	if len(dirs) == 0 {
-		return errors.New("Need to specify directory or file")
+		return ErrNotSpecified
 	}
 
 	for _, dir := range dirs {
 		err := filepath.Walk(dir,
 			func(path string, info os.FileInfo, err error) error {
 				if info == nil {
-					return errors.New(path + " is not directory")
+					return ErrMotDirectory
 				}
 				if info.IsDir() || filepath.Ext(path)[1:] != ci.From {
 					return nil
diff --git a/kadai2/edm20627/imageconvert/imageconvert_test.go b/kadai2/edm20627/imageconvert/imageconvert_test.go
new file mode 100644
index 00000000..f2f95389
--- /dev/null
+++ b/kadai2/edm20627/imageconvert/imageconvert_test.go
@@ -0,0 +1,167 @@
+package imageconvert_test
+
+import (
+	"image"
+	"image/color"
+	"image/gif"
+	"image/jpeg"
+	"image/png"
+	"os"
+	"reflect"
+	"testing"
+
+	"github.com/edm20627/gopherdojo-studyroom/kadai2/edm20627/imageconvert"
+)
+
+func TestGet(t *testing.T) {
+	success_cases := []struct {
+		name      string
+		dirs      []string
+		filepaths []string
+		from      string
+		expected  []string
+	}{
+		{name: "get jpg", dirs: []string{"../testdata"}, from: "jpg", expected: []string{"../testdata/hoge/img_2.jpg", "../testdata/img_1.jpg"}},
+		{name: "get png", dirs: []string{"../testdata"}, from: "png", expected: []string{"../testdata/hoge/img_2.png", "../testdata/img_1.png"}},
+		{name: "get gif", dirs: []string{"../testdata"}, from: "gif", expected: []string{"../testdata/hoge/img_2.gif", "../testdata/img_1.gif"}},
+	}
+
+	for _, c := range success_cases {
+		for _, path := range c.expected {
+			testCreateImage(t, path, c.from)
+			defer testRemoveTestdata(t)
+		}
+	}
+
+	for _, c := range success_cases {
+		t.Run(c.name, func(t *testing.T) {
+			ci := imageconvert.ConvertImage{From: c.from}
+			if err := ci.Get(c.dirs); err != nil {
+				t.Error(err)
+			}
+			if !reflect.DeepEqual(ci.Filepaths, c.expected) {
+				t.Errorf("want %v, got %v", c.expected, ci.Filepaths)
+			}
+		})
+	}
+
+	failure_cases := []struct {
+		name      string
+		dirs      []string
+		filepaths []string
+		from      string
+		expected  error
+	}{
+		{name: "occurred ErrNotSpecified", dirs: []string{}, from: "jpg", expected: imageconvert.ErrNotSpecified},
+		{name: "occurred ErrMotDirectory", dirs: []string{"../non_testdata"}, from: "jpg", expected: imageconvert.ErrMotDirectory},
+	}
+
+	for _, c := range failure_cases {
+		t.Run(c.name, func(t *testing.T) {
+			ci := imageconvert.ConvertImage{From: c.from}
+			if err := ci.Get(c.dirs); err != c.expected {
+				t.Errorf("want %v, got %v", c.expected, err)
+			}
+		})
+	}
+}
+
+func TestConvert(t *testing.T) {
+	cases := []struct {
+		name      string
+		filepaths []string
+		from      string
+		to        string
+	}{
+		{name: "jpg to png", filepaths: []string{"../testdata/img_1.jpg"}, from: "jpg", to: "png"},
+		{name: "png to gif", filepaths: []string{"../testdata/img_1.png"}, from: "png", to: "gif"},
+		{name: "gif to jpg", filepaths: []string{"../testdata/img_1.gif"}, from: "gif", to: "jpg"},
+	}
+
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			for _, path := range c.filepaths {
+				testCreateImage(t, path, c.from)
+				defer testRemoveTestdata(t)
+			}
+			ci := imageconvert.ConvertImage{Filepaths: c.filepaths, To: c.to}
+			if actual := ci.Convert(); actual != nil {
+				t.Error(actual)
+			}
+		})
+	}
+}
+
+func TestValid(t *testing.T) {
+	cases := []struct {
+		name     string
+		from     string
+		to       string
+		expected bool
+	}{
+		{name: "jpg to png", from: "jpg", to: "png", expected: true},
+		{name: "png to jpg", from: "png", to: "jpg", expected: true},
+		{name: "jpeg to gif", from: "jpeg", to: "gif", expected: true},
+		{name: "gif to jpeg", from: "gif", to: "jpeg", expected: true},
+		{name: "hoge to fuga", from: "hoge", to: "fuga", expected: false},
+	}
+
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			ci := imageconvert.ConvertImage{From: c.from, To: c.to}
+			if actual := ci.Valid(); c.expected != actual {
+				t.Errorf("want %v, got %v", c.expected, actual)
+			}
+		})
+	}
+}
+
+func testCreateImage(t *testing.T, path string, fmt string) error {
+	t.Helper()
+
+	err := os.MkdirAll("../testdata/hoge", 0777)
+	if err != nil {
+		t.Error(err)
+	}
+
+	file, err := os.Create(path)
+	if err != nil {
+		t.Error(err)
+	}
+	defer file.Close()
+
+	img := image.NewRGBA(image.Rect(0, 0, 100, 100))
+	for i := img.Rect.Min.Y; i < img.Rect.Max.Y; i++ {
+		for j := img.Rect.Min.X; j < img.Rect.Max.X; j++ {
+			img.Set(j, i, color.RGBA{255, 255, 0, 0})
+		}
+	}
+
+	switch fmt {
+	case "png":
+		if err := png.Encode(file, img); err != nil {
+			return err
+		}
+	case "jpg", "jpeg":
+		if err := jpeg.Encode(file, img, nil); err != nil {
+			return err
+		}
+	case "gif":
+		if err := gif.Encode(file, img, nil); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func testRemoveTestdata(t *testing.T) error {
+	t.Helper()
+
+	err := os.RemoveAll("../testdata")
+	if err != nil {
+		t.Error(err)
+	}
+
+	return nil
+}

From c75f90f6890e9945d258807d1b07aa911020d6cd Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Mon, 3 May 2021 00:35:08 +0900
Subject: [PATCH 18/24] =?UTF-8?q?fix=20=E3=82=A8=E3=83=A9=E3=83=BC?=
 =?UTF-8?q?=E3=83=8F=E3=83=B3=E3=83=89=E3=83=AA=E3=83=B3=E3=82=B0=E8=BF=BD?=
 =?UTF-8?q?=E5=8A=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/imageconvert/imageconvert_test.go | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/kadai2/edm20627/imageconvert/imageconvert_test.go b/kadai2/edm20627/imageconvert/imageconvert_test.go
index f2f95389..b36dbd2c 100644
--- a/kadai2/edm20627/imageconvert/imageconvert_test.go
+++ b/kadai2/edm20627/imageconvert/imageconvert_test.go
@@ -28,7 +28,10 @@ func TestGet(t *testing.T) {
 
 	for _, c := range success_cases {
 		for _, path := range c.expected {
-			testCreateImage(t, path, c.from)
+			err := testCreateImage(t, path, c.from)
+			if err != nil {
+				t.Fatal("Failed to create the test image")
+			}
 			defer testRemoveTestdata(t)
 		}
 	}
@@ -81,7 +84,10 @@ func TestConvert(t *testing.T) {
 	for _, c := range cases {
 		t.Run(c.name, func(t *testing.T) {
 			for _, path := range c.filepaths {
-				testCreateImage(t, path, c.from)
+				err := testCreateImage(t, path, c.from)
+				if err != nil {
+					t.Fatal("Failed to create the test image")
+				}
 				defer testRemoveTestdata(t)
 			}
 			ci := imageconvert.ConvertImage{Filepaths: c.filepaths, To: c.to}

From 6d344e910ddea6ec2f2dae58969bec5d532cee43 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Mon, 3 May 2021 00:41:39 +0900
Subject: [PATCH 19/24] =?UTF-8?q?fix=20=E3=82=BF=E3=82=A4=E3=83=9D?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/imageconvert/imageconvert.go      | 4 ++--
 kadai2/edm20627/imageconvert/imageconvert_test.go | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kadai2/edm20627/imageconvert/imageconvert.go b/kadai2/edm20627/imageconvert/imageconvert.go
index dc182741..a8ab7c3b 100644
--- a/kadai2/edm20627/imageconvert/imageconvert.go
+++ b/kadai2/edm20627/imageconvert/imageconvert.go
@@ -15,7 +15,7 @@ var SupportedFormat = []string{"png", "jpg", "jpeg", "gif"}
 
 var (
 	ErrNotSpecified = errors.New("Need to specify directory or file")
-	ErrMotDirectory = errors.New("Specify directory or file is not directory")
+	ErrNotDirectory = errors.New("Specify directory or file is not directory")
 )
 
 type ConvertImage struct {
@@ -34,7 +34,7 @@ func (ci *ConvertImage) Get(dirs []string) error {
 		err := filepath.Walk(dir,
 			func(path string, info os.FileInfo, err error) error {
 				if info == nil {
-					return ErrMotDirectory
+					return ErrNotDirectory
 				}
 				if info.IsDir() || filepath.Ext(path)[1:] != ci.From {
 					return nil
diff --git a/kadai2/edm20627/imageconvert/imageconvert_test.go b/kadai2/edm20627/imageconvert/imageconvert_test.go
index b36dbd2c..02bea00b 100644
--- a/kadai2/edm20627/imageconvert/imageconvert_test.go
+++ b/kadai2/edm20627/imageconvert/imageconvert_test.go
@@ -56,7 +56,7 @@ func TestGet(t *testing.T) {
 		expected  error
 	}{
 		{name: "occurred ErrNotSpecified", dirs: []string{}, from: "jpg", expected: imageconvert.ErrNotSpecified},
-		{name: "occurred ErrMotDirectory", dirs: []string{"../non_testdata"}, from: "jpg", expected: imageconvert.ErrMotDirectory},
+		{name: "occurred ErrNotDirectory", dirs: []string{"../non_testdata"}, from: "jpg", expected: imageconvert.ErrNotDirectory},
 	}
 
 	for _, c := range failure_cases {

From 3f72fd8aa8297462b9e604dd560a666c75f2f132 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Mon, 3 May 2021 00:44:30 +0900
Subject: [PATCH 20/24] =?UTF-8?q?fix=20=E3=83=8D=E3=82=B9=E3=83=88?=
 =?UTF-8?q?=E3=81=8C=E6=B7=B1=E3=81=84=E3=81=9F=E3=82=81Valid=E3=83=A1?=
 =?UTF-8?q?=E3=82=BD=E3=83=83=E3=83=89=E3=82=92=E3=83=AA=E3=83=95=E3=82=A1?=
 =?UTF-8?q?=E3=82=AF=E3=82=BF=E3=83=AA=E3=83=B3=E3=82=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/imageconvert/imageconvert.go | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/kadai2/edm20627/imageconvert/imageconvert.go b/kadai2/edm20627/imageconvert/imageconvert.go
index a8ab7c3b..775ccee3 100644
--- a/kadai2/edm20627/imageconvert/imageconvert.go
+++ b/kadai2/edm20627/imageconvert/imageconvert.go
@@ -62,16 +62,16 @@ func (ci *ConvertImage) Convert() error {
 
 // Check for supported extensions.
 func (ci *ConvertImage) Valid() bool {
+	var fromSupported, toSupported bool
 	for _, v := range SupportedFormat {
 		if v == ci.From {
-			for _, v := range SupportedFormat {
-				if v == ci.To {
-					return true
-				}
-			}
+			fromSupported = true
+		}
+		if v == ci.To {
+			toSupported = true
 		}
 	}
-	return false
+	return fromSupported && toSupported
 }
 
 func convert(path string, to string, deleteOption bool) error {

From 38cf9338a3bbaa3b5c646a917f12d7d22392fb88 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Mon, 3 May 2021 00:50:11 +0900
Subject: [PATCH 21/24] =?UTF-8?q?fix=20TestValid=E3=81=AB=E6=AD=A3=20to=20?=
 =?UTF-8?q?=E5=90=A6=E3=80=81=E5=90=A6=20to=20=E6=AD=A3=E3=82=B1=E3=83=BC?=
 =?UTF-8?q?=E3=82=B9=E3=82=92=E8=BF=BD=E5=8A=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/imageconvert/imageconvert_test.go | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/kadai2/edm20627/imageconvert/imageconvert_test.go b/kadai2/edm20627/imageconvert/imageconvert_test.go
index 02bea00b..1418c7f1 100644
--- a/kadai2/edm20627/imageconvert/imageconvert_test.go
+++ b/kadai2/edm20627/imageconvert/imageconvert_test.go
@@ -105,11 +105,13 @@ func TestValid(t *testing.T) {
 		to       string
 		expected bool
 	}{
-		{name: "jpg to png", from: "jpg", to: "png", expected: true},
-		{name: "png to jpg", from: "png", to: "jpg", expected: true},
-		{name: "jpeg to gif", from: "jpeg", to: "gif", expected: true},
-		{name: "gif to jpeg", from: "gif", to: "jpeg", expected: true},
-		{name: "hoge to fuga", from: "hoge", to: "fuga", expected: false},
+		{name: "jpg to png (true to true)", from: "jpg", to: "png", expected: true},
+		{name: "png to jpg (true to true)", from: "png", to: "jpg", expected: true},
+		{name: "jpeg to gif (true to true)", from: "jpeg", to: "gif", expected: true},
+		{name: "gif to jpeg (true to true)", from: "gif", to: "jpeg", expected: true},
+		{name: "jpg to fuga (true to false)", from: "jpg", to: "fuga", expected: false},
+		{name: "hoge to jpg (false to true)", from: "hoge", to: "jpg", expected: false},
+		{name: "hoge to fuga (false to false)", from: "hoge", to: "fuga", expected: false},
 	}
 
 	for _, c := range cases {

From 539b81a21b40279fbc92c5af4bc052a0928d1a77 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Mon, 3 May 2021 03:19:28 +0900
Subject: [PATCH 22/24] =?UTF-8?q?fix=20=E3=83=86=E3=82=B9=E3=83=88?=
 =?UTF-8?q?=E7=94=A8=E7=94=BB=E5=83=8F=E3=82=92=E4=BD=BF=E7=94=A8=E3=81=97?=
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MIME-Version: 1.0
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---
 .../imageconvert/imageconvert_test.go         |  83 ++----------------
 kadai2/edm20627/testdata/hoge/img_1.jpg       | Bin 0 -> 791 bytes
 kadai2/edm20627/testdata/hoge/img_2.png       | Bin 0 -> 298 bytes
 kadai2/edm20627/testdata/hoge/img_3.gif       | Bin 0 -> 955 bytes
 kadai2/edm20627/testdata/img_1.jpg            | Bin 0 -> 907 bytes
 kadai2/edm20627/testdata/img_2.png            | Bin 0 -> 1795 bytes
 kadai2/edm20627/testdata/img_3.gif            | Bin 0 -> 1546 bytes
 7 files changed, 5 insertions(+), 78 deletions(-)
 create mode 100644 kadai2/edm20627/testdata/hoge/img_1.jpg
 create mode 100644 kadai2/edm20627/testdata/hoge/img_2.png
 create mode 100644 kadai2/edm20627/testdata/hoge/img_3.gif
 create mode 100644 kadai2/edm20627/testdata/img_1.jpg
 create mode 100644 kadai2/edm20627/testdata/img_2.png
 create mode 100644 kadai2/edm20627/testdata/img_3.gif

diff --git a/kadai2/edm20627/imageconvert/imageconvert_test.go b/kadai2/edm20627/imageconvert/imageconvert_test.go
index 1418c7f1..7929a90c 100644
--- a/kadai2/edm20627/imageconvert/imageconvert_test.go
+++ b/kadai2/edm20627/imageconvert/imageconvert_test.go
@@ -1,12 +1,6 @@
 package imageconvert_test
 
 import (
-	"image"
-	"image/color"
-	"image/gif"
-	"image/jpeg"
-	"image/png"
-	"os"
 	"reflect"
 	"testing"
 
@@ -21,19 +15,9 @@ func TestGet(t *testing.T) {
 		from      string
 		expected  []string
 	}{
-		{name: "get jpg", dirs: []string{"../testdata"}, from: "jpg", expected: []string{"../testdata/hoge/img_2.jpg", "../testdata/img_1.jpg"}},
-		{name: "get png", dirs: []string{"../testdata"}, from: "png", expected: []string{"../testdata/hoge/img_2.png", "../testdata/img_1.png"}},
-		{name: "get gif", dirs: []string{"../testdata"}, from: "gif", expected: []string{"../testdata/hoge/img_2.gif", "../testdata/img_1.gif"}},
-	}
-
-	for _, c := range success_cases {
-		for _, path := range c.expected {
-			err := testCreateImage(t, path, c.from)
-			if err != nil {
-				t.Fatal("Failed to create the test image")
-			}
-			defer testRemoveTestdata(t)
-		}
+		{name: "get jpg", dirs: []string{"../testdata"}, from: "jpg", expected: []string{"../testdata/hoge/img_1.jpg", "../testdata/img_1.jpg"}},
+		{name: "get png", dirs: []string{"../testdata"}, from: "png", expected: []string{"../testdata/hoge/img_2.png", "../testdata/img_2.png"}},
+		{name: "get gif", dirs: []string{"../testdata"}, from: "gif", expected: []string{"../testdata/hoge/img_3.gif", "../testdata/img_3.gif"}},
 	}
 
 	for _, c := range success_cases {
@@ -77,19 +61,12 @@ func TestConvert(t *testing.T) {
 		to        string
 	}{
 		{name: "jpg to png", filepaths: []string{"../testdata/img_1.jpg"}, from: "jpg", to: "png"},
-		{name: "png to gif", filepaths: []string{"../testdata/img_1.png"}, from: "png", to: "gif"},
-		{name: "gif to jpg", filepaths: []string{"../testdata/img_1.gif"}, from: "gif", to: "jpg"},
+		{name: "png to gif", filepaths: []string{"../testdata/img_2.png"}, from: "png", to: "gif"},
+		{name: "gif to jpg", filepaths: []string{"../testdata/img_3.gif"}, from: "gif", to: "jpg"},
 	}
 
 	for _, c := range cases {
 		t.Run(c.name, func(t *testing.T) {
-			for _, path := range c.filepaths {
-				err := testCreateImage(t, path, c.from)
-				if err != nil {
-					t.Fatal("Failed to create the test image")
-				}
-				defer testRemoveTestdata(t)
-			}
 			ci := imageconvert.ConvertImage{Filepaths: c.filepaths, To: c.to}
 			if actual := ci.Convert(); actual != nil {
 				t.Error(actual)
@@ -123,53 +100,3 @@ func TestValid(t *testing.T) {
 		})
 	}
 }
-
-func testCreateImage(t *testing.T, path string, fmt string) error {
-	t.Helper()
-
-	err := os.MkdirAll("../testdata/hoge", 0777)
-	if err != nil {
-		t.Error(err)
-	}
-
-	file, err := os.Create(path)
-	if err != nil {
-		t.Error(err)
-	}
-	defer file.Close()
-
-	img := image.NewRGBA(image.Rect(0, 0, 100, 100))
-	for i := img.Rect.Min.Y; i < img.Rect.Max.Y; i++ {
-		for j := img.Rect.Min.X; j < img.Rect.Max.X; j++ {
-			img.Set(j, i, color.RGBA{255, 255, 0, 0})
-		}
-	}
-
-	switch fmt {
-	case "png":
-		if err := png.Encode(file, img); err != nil {
-			return err
-		}
-	case "jpg", "jpeg":
-		if err := jpeg.Encode(file, img, nil); err != nil {
-			return err
-		}
-	case "gif":
-		if err := gif.Encode(file, img, nil); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func testRemoveTestdata(t *testing.T) error {
-	t.Helper()
-
-	err := os.RemoveAll("../testdata")
-	if err != nil {
-		t.Error(err)
-	}
-
-	return nil
-}
diff --git a/kadai2/edm20627/testdata/hoge/img_1.jpg b/kadai2/edm20627/testdata/hoge/img_1.jpg
new file mode 100644
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diff --git a/kadai2/edm20627/testdata/hoge/img_2.png b/kadai2/edm20627/testdata/hoge/img_2.png
new file mode 100644
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zg6g;2Yp(`rrOBg;>(i!NGy!SzW4*}@sb4YUZdKmRJ7?OWi@kYCyZ8R`GrI@spWfVg
z^NBrf`}(?qmXyYfVTQul`7tfZzwU2u>s0FTDdkmlG2OHKW7FI1Ej#+Mv@OiMW_LlR
zV_p8LtAXOK_eRnY6%7Xht$U}WX&+{&?rlB7E|LoGt2-+i%}1Bbcm2>**5P@#By-lX
e_GHzIZCQCb_qLeaz@=TM551o`<M>X11^)qT|I-Hm

literal 0
HcmV?d00001


From 113322206c0cdf621e689eb9bdaf4e59bfad05cb Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Mon, 3 May 2021 03:24:38 +0900
Subject: [PATCH 23/24] =?UTF-8?q?fix=20DeleteOption=E3=81=AE=E3=83=86?=
 =?UTF-8?q?=E3=82=B9=E3=83=88=E8=BF=BD=E5=8A=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/imageconvert/imageconvert.go  |  4 +-
 .../imageconvert/imageconvert_test.go         | 38 +++++++++++++++----
 2 files changed, 33 insertions(+), 9 deletions(-)

diff --git a/kadai2/edm20627/imageconvert/imageconvert.go b/kadai2/edm20627/imageconvert/imageconvert.go
index 775ccee3..eede47e8 100644
--- a/kadai2/edm20627/imageconvert/imageconvert.go
+++ b/kadai2/edm20627/imageconvert/imageconvert.go
@@ -18,6 +18,8 @@ var (
 	ErrNotDirectory = errors.New("Specify directory or file is not directory")
 )
 
+var OsRemove = os.Remove
+
 type ConvertImage struct {
 	Filepaths    []string
 	From, To     string
@@ -108,7 +110,7 @@ func convert(path string, to string, deleteOption bool) error {
 	}
 
 	if deleteOption {
-		if err := os.Remove(path); err != nil {
+		if err := OsRemove(path); err != nil {
 			return err
 		}
 	}
diff --git a/kadai2/edm20627/imageconvert/imageconvert_test.go b/kadai2/edm20627/imageconvert/imageconvert_test.go
index 7929a90c..572b6e71 100644
--- a/kadai2/edm20627/imageconvert/imageconvert_test.go
+++ b/kadai2/edm20627/imageconvert/imageconvert_test.go
@@ -1,7 +1,10 @@
 package imageconvert_test
 
 import (
+	"errors"
+	"os"
 	"reflect"
+	"strings"
 	"testing"
 
 	"github.com/edm20627/gopherdojo-studyroom/kadai2/edm20627/imageconvert"
@@ -55,22 +58,41 @@ func TestGet(t *testing.T) {
 
 func TestConvert(t *testing.T) {
 	cases := []struct {
-		name      string
-		filepaths []string
-		from      string
-		to        string
+		name         string
+		filepaths    []string
+		from         string
+		to           string
+		deleteOption bool
 	}{
-		{name: "jpg to png", filepaths: []string{"../testdata/img_1.jpg"}, from: "jpg", to: "png"},
-		{name: "png to gif", filepaths: []string{"../testdata/img_2.png"}, from: "png", to: "gif"},
-		{name: "gif to jpg", filepaths: []string{"../testdata/img_3.gif"}, from: "gif", to: "jpg"},
+		{name: "jpg to png", filepaths: []string{"../testdata/img_1.jpg"}, from: "jpg", to: "png", deleteOption: false},
+		{name: "png to gif", filepaths: []string{"../testdata/img_2.png"}, from: "png", to: "gif", deleteOption: false},
+		{name: "gif to jpg", filepaths: []string{"../testdata/img_3.gif"}, from: "gif", to: "jpg", deleteOption: false},
+		{name: "jpg to png", filepaths: []string{"../testdata/img_1.jpg"}, from: "jpg", to: "png", deleteOption: true},
+		{name: "png to gif", filepaths: []string{"../testdata/img_2.png"}, from: "png", to: "gif", deleteOption: true},
+		{name: "gif to jpg", filepaths: []string{"../testdata/img_3.gif"}, from: "gif", to: "jpg", deleteOption: true},
 	}
 
 	for _, c := range cases {
 		t.Run(c.name, func(t *testing.T) {
-			ci := imageconvert.ConvertImage{Filepaths: c.filepaths, To: c.to}
+			imageconvert.OsRemove = func(path string) error {
+				for _, filepath := range c.filepaths {
+					if path == filepath {
+						return nil
+					}
+				}
+				return errors.New("failed to delete for conversion source image")
+			}
+
+			ci := imageconvert.ConvertImage{Filepaths: c.filepaths, To: c.to, DeleteOption: c.deleteOption}
 			if actual := ci.Convert(); actual != nil {
 				t.Error(actual)
 			}
+			for _, filepath := range c.filepaths {
+				targetFile := strings.Replace(filepath, c.from, c.to, 1)
+				if err := os.Remove(targetFile); err != nil {
+					t.Fatal(err)
+				}
+			}
 		})
 	}
 }

From 6d99bb204c92d4a2bbf494102a50d3adf605edc8 Mon Sep 17 00:00:00 2001
From: edm20627 <eng00627@gmail.com>
Date: Thu, 6 May 2021 20:53:47 +0900
Subject: [PATCH 24/24] =?UTF-8?q?fix=20=E5=AE=9F=E9=9A=9B=E3=81=AB?=
 =?UTF-8?q?=E3=83=86=E3=82=B9=E3=83=88=E3=81=A7=E3=83=95=E3=82=A1=E3=82=A4?=
 =?UTF-8?q?=E3=83=AB=E5=89=8A=E9=99=A4=E3=81=97=E3=81=A6=E3=81=84=E3=82=8B?=
 =?UTF-8?q?=E3=81=8B=E7=A2=BA=E8=AA=8D=E3=81=A7=E3=81=8D=E3=82=8B=E3=82=88?=
 =?UTF-8?q?=E3=81=86=E3=81=AB=E4=BF=AE=E6=AD=A3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 kadai2/edm20627/imageconvert/imageconvert.go  |   4 +-
 .../imageconvert/imageconvert_test.go         | 121 +++++++++++++++---
 2 files changed, 107 insertions(+), 18 deletions(-)

diff --git a/kadai2/edm20627/imageconvert/imageconvert.go b/kadai2/edm20627/imageconvert/imageconvert.go
index eede47e8..775ccee3 100644
--- a/kadai2/edm20627/imageconvert/imageconvert.go
+++ b/kadai2/edm20627/imageconvert/imageconvert.go
@@ -18,8 +18,6 @@ var (
 	ErrNotDirectory = errors.New("Specify directory or file is not directory")
 )
 
-var OsRemove = os.Remove
-
 type ConvertImage struct {
 	Filepaths    []string
 	From, To     string
@@ -110,7 +108,7 @@ func convert(path string, to string, deleteOption bool) error {
 	}
 
 	if deleteOption {
-		if err := OsRemove(path); err != nil {
+		if err := os.Remove(path); err != nil {
 			return err
 		}
 	}
diff --git a/kadai2/edm20627/imageconvert/imageconvert_test.go b/kadai2/edm20627/imageconvert/imageconvert_test.go
index 572b6e71..c7ac1d2f 100644
--- a/kadai2/edm20627/imageconvert/imageconvert_test.go
+++ b/kadai2/edm20627/imageconvert/imageconvert_test.go
@@ -1,8 +1,11 @@
 package imageconvert_test
 
 import (
-	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
 	"os"
+	"path"
 	"reflect"
 	"strings"
 	"testing"
@@ -57,6 +60,12 @@ func TestGet(t *testing.T) {
 }
 
 func TestConvert(t *testing.T) {
+	// テスト実行ディレクトリを作成するためにtastdataをコピー
+	targetDir := "../test_execution_dir"
+	if err := testDirCopy(t, "../testdata", targetDir); err != nil {
+		t.Fatal("Failed to copy the test directory")
+	}
+
 	cases := []struct {
 		name         string
 		filepaths    []string
@@ -64,29 +73,38 @@ func TestConvert(t *testing.T) {
 		to           string
 		deleteOption bool
 	}{
-		{name: "jpg to png", filepaths: []string{"../testdata/img_1.jpg"}, from: "jpg", to: "png", deleteOption: false},
-		{name: "png to gif", filepaths: []string{"../testdata/img_2.png"}, from: "png", to: "gif", deleteOption: false},
-		{name: "gif to jpg", filepaths: []string{"../testdata/img_3.gif"}, from: "gif", to: "jpg", deleteOption: false},
-		{name: "jpg to png", filepaths: []string{"../testdata/img_1.jpg"}, from: "jpg", to: "png", deleteOption: true},
-		{name: "png to gif", filepaths: []string{"../testdata/img_2.png"}, from: "png", to: "gif", deleteOption: true},
-		{name: "gif to jpg", filepaths: []string{"../testdata/img_3.gif"}, from: "gif", to: "jpg", deleteOption: true},
+		{name: "jpg to png(deleteOption: false)", filepaths: []string{targetDir + "/img_1.jpg"}, from: "jpg", to: "png", deleteOption: false},
+		{name: "png to gif(deleteOption: false)", filepaths: []string{targetDir + "/img_2.png"}, from: "png", to: "gif", deleteOption: false},
+		{name: "gif to jpg(deleteOption: false)", filepaths: []string{targetDir + "/img_3.gif"}, from: "gif", to: "jpg", deleteOption: false},
+		{name: "jpg to png(deleteOption: true)", filepaths: []string{targetDir + "/img_1.jpg"}, from: "jpg", to: "png", deleteOption: true},
+		{name: "png to gif(deleteOption: true)", filepaths: []string{targetDir + "/img_2.png"}, from: "png", to: "gif", deleteOption: true},
+		{name: "gif to jpg(deleteOption: true)", filepaths: []string{targetDir + "/img_3.gif"}, from: "gif", to: "jpg", deleteOption: true},
 	}
 
 	for _, c := range cases {
 		t.Run(c.name, func(t *testing.T) {
-			imageconvert.OsRemove = func(path string) error {
-				for _, filepath := range c.filepaths {
-					if path == filepath {
-						return nil
-					}
-				}
-				return errors.New("failed to delete for conversion source image")
-			}
 
 			ci := imageconvert.ConvertImage{Filepaths: c.filepaths, To: c.to, DeleteOption: c.deleteOption}
 			if actual := ci.Convert(); actual != nil {
 				t.Error(actual)
 			}
+
+			// ファイルのありなしを確認
+			for _, fileName := range c.filepaths {
+				// 変換前ファイル
+				_, err := os.Stat(fileName)
+				if (err == nil) == c.deleteOption {
+					t.Fatal(err)
+				}
+
+				// 変換後ファイル
+				targetFileName := strings.Replace(fileName, c.from, c.to, 1)
+				_, err = os.Stat(targetFileName)
+				if err != nil {
+					t.Fatal(err)
+				}
+			}
+
 			for _, filepath := range c.filepaths {
 				targetFile := strings.Replace(filepath, c.from, c.to, 1)
 				if err := os.Remove(targetFile); err != nil {
@@ -95,6 +113,11 @@ func TestConvert(t *testing.T) {
 			}
 		})
 	}
+
+	// テスト実行ディレクトリを削除
+	if err := os.RemoveAll(targetDir); err != nil {
+		fmt.Println(err)
+	}
 }
 
 func TestValid(t *testing.T) {
@@ -122,3 +145,71 @@ func TestValid(t *testing.T) {
 		})
 	}
 }
+
+func testDirCopy(t *testing.T, src string, dst string) error {
+	t.Helper()
+	var err error
+	var fds []os.FileInfo
+	var srcinfo os.FileInfo
+
+	if srcinfo, err = os.Stat(src); err != nil {
+		t.Error(err)
+	}
+
+	if err = os.MkdirAll(dst, srcinfo.Mode()); err != nil {
+		t.Error(err)
+
+	}
+
+	if fds, err = ioutil.ReadDir(src); err != nil {
+		t.Error(err)
+
+	}
+
+	for _, fd := range fds {
+		srcfp := path.Join(src, fd.Name())
+		dstfp := path.Join(dst, fd.Name())
+
+		if fd.IsDir() {
+			if err = testDirCopy(t, srcfp, dstfp); err != nil {
+				t.Error(err)
+
+			}
+		} else {
+			if err = testFileCopy(t, srcfp, dstfp); err != nil {
+				t.Error(err)
+
+			}
+		}
+	}
+
+	return nil
+}
+
+func testFileCopy(t *testing.T, src, dst string) error {
+	t.Helper()
+	var err error
+	var srcfd *os.File
+	var dstfd *os.File
+	var srcinfo os.FileInfo
+
+	if srcfd, err = os.Open(src); err != nil {
+		t.Error(err)
+	}
+	defer srcfd.Close()
+
+	if dstfd, err = os.Create(dst); err != nil {
+		t.Error(err)
+	}
+	defer dstfd.Close()
+
+	if _, err = io.Copy(dstfd, srcfd); err != nil {
+		t.Error(err)
+	}
+
+	if srcinfo, err = os.Stat(src); err != nil {
+		t.Error(err)
+	}
+
+	return os.Chmod(dst, srcinfo.Mode())
+}