Add to support the color print

Author: yasukotelin

README.md

@@ -7,7 +7,7 @@ git-diffs is the git subcommand that is diff files selector.
 You can use the `git-diffs` as a git subcommand like `git diffs`.<br>
 This shows diff file names and show diff when you select one.
 
-<img src="images/git-diffs-demo.gif" alt="git-diffs demo">
+<img src="images/git-diffs-schreenshot.png" alt="git-diffs schreenshot">
 
 ## Install
 
@@ -19,25 +19,6 @@ go get -u github.com/yasukotelin/git-diffs
 
 Or you can download the binary from [release](https://github.com/yasukotelin/git-diffs/releases) page. (only windows)
 
-
-## Usage
-
-```
-$ git diffs
-=== Staged files ===
-
- [1]    D   git.go
- [2]    M   main.go
-
-=== Unstaged files ===
-
- [3]    M   README.md
- [4]    M   git/diff.go
- [5]    A   images/git-diffs-demo.gif
-
-Select number (empty is cancel) =>
-```
-
 ## Licence
 
 MIT

go.mod

@@ -2,4 +2,7 @@ module github.com/yasukotelin/git-diffs
 
 go 1.13
 
-require github.com/urfave/cli v1.22.1
+require (
+	github.com/gookit/color v1.2.0
+	github.com/urfave/cli v1.22.1
+)

go.sum

@@ -1,11 +1,16 @@
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/gookit/color v1.2.0 h1:lHA77Kuyi5JpBnA9ESvwkY+nanLjRZ0mHbWQXRYk2Lk=
+github.com/gookit/color v1.2.0/go.mod h1:AhIE+pS6D4Ql0SQWbBeXPHw7gY0/sjHoA4s/n1KB7xg=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/urfave/cli v1.22.1 h1:+mkCCcOFKPnCmVYVcURKps1Xe+3zP90gSYGNfRkjoIY=
 github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

images/git-diffs-demo.gif

@@ -9,12 +9,13 @@ import (
 
 	"github.com/urfave/cli"
 	"github.com/yasukotelin/git-diffs/git"
+	"github.com/gookit/color"
 )
 
 func main() {
 	app := cli.NewApp()
 	app.Name = "git-diffs"
-	app.Version = "1.1.0"
+	app.Version = "1.3.0"
 	app.Description = "The git subcommand that is diff files selector."
 	app.Action = mainAction
 
@@ -36,28 +37,32 @@ func mainAction(c *cli.Context) error {
 		return err
 	}
 
-	fmt.Println("=== Staged files ===")
+	fmt.Println("Staged files:")
 	fmt.Println()
 	stagedFilesLen := len(stagedFiles)
 	if stagedFilesLen == 0 {
-		fmt.Println(" No staged files.")
+		fmt.Println("no staged files.")
 	}
 	for i, file := range stagedFiles {
-		fmt.Printf(" [%d]\t%v\t%v\n", i+1, file.Status, file.Path)
+		color.Green.Printf("\t[%d]\t%v\t%v\n", i+1, file.Status, file.Path)
 	}
 	fmt.Println()
 
-	fmt.Println("=== Unstaged files ===")
+	fmt.Println("Unstaged files:")
 	fmt.Println()
 	unstagedFilesLen := len(unstagedFiles)
 	if unstagedFilesLen == 0 {
-		fmt.Println(" No unstaged files.")
+		fmt.Println("no unstaged files.")
 	}
 	for i, file := range unstagedFiles {
-		fmt.Printf(" [%d]\t%v\t%v\n", i+1+stagedFilesLen, file.Status, file.Path)
+		color.Red.Printf("\t[%d]\t%v\t%v\n", i+1+stagedFilesLen, file.Status, file.Path)
 	}
 	fmt.Println()
 
+	if (stagedFilesLen + unstagedFilesLen == 0) {
+		return nil
+	}
+	
 	fmt.Print("Select number (empty is cancel) => ")
 
 	var selNumStr string
@@ -70,7 +75,7 @@ func mainAction(c *cli.Context) error {
 	if err != nil {
 		return errors.New("your input is not number.")
 	}
-	if selNum > stagedFilesLen + unstagedFilesLen || selNum < 1 {
+	if selNum > stagedFilesLen+unstagedFilesLen || selNum < 1 {
 		return errors.New("your input is out of range numbers")
 	}