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Merge pull request #11 from matsuyoshi30/change-package-as-a-library
Change package as a library
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| package cli | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "path/filepath" | ||
|
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| flags "github.com/jessevdk/go-flags" | ||
| "github.com/matsuyoshi30/germanium" | ||
| ) | ||
|
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| var name = "germanium" | ||
|
|
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| var ( | ||
| // these are set in build step | ||
| version = "unversioned" | ||
| commit = "?" | ||
| date = "?" | ||
| ) | ||
|
|
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| func Run() (err error) { | ||
| parser := flags.NewParser(&opts, flags.HelpFlag|flags.PassDoubleDash) | ||
| parser.Usage = fmt.Sprintf(Usage, name) | ||
|
|
||
| args, err := parser.Parse() | ||
| if err != nil { | ||
| if err, ok := err.(*flags.Error); ok { | ||
| fmt.Println(parser.Usage) | ||
|
|
||
| if err.Type != flags.ErrHelp { | ||
| fmt.Fprintln(os.Stderr, err.Error()) | ||
| return nil | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| var filename string | ||
| if len(args) > 0 { | ||
| filename = args[0] | ||
| } | ||
|
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| if opts.ListFonts { | ||
| germanium.ListFonts() | ||
| return nil | ||
| } | ||
|
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| var r io.Reader | ||
| switch filename { | ||
| case "", "-": | ||
| if opts.Language == "" { | ||
| err = fmt.Errorf("If you want to use stdin, specify language") | ||
| return | ||
| } | ||
| r = os.Stdin | ||
| default: | ||
| if _, err := os.Stat(filename); os.IsNotExist(err) { | ||
| return err | ||
| } | ||
|
|
||
| file, err := os.Open(filename) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer func() { | ||
| if err := file.Close(); err != nil { | ||
| return | ||
| } | ||
| }() | ||
| r = file | ||
| } | ||
|
|
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| return run(r, filename) | ||
| } | ||
|
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| func run(r io.Reader, filename string) error { | ||
| currentDir, err := os.Getwd() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| out, err := os.Create(filepath.Join(currentDir, opts.Output)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| face, err := germanium.LoadFont(opts.Font) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| src, err := germanium.ReadString(r, face) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| image := germanium.NewImage(src, face, opts.NoWindowAccessBar) | ||
| if err := image.Draw(opts.BackgroundColor, opts.NoWindowAccessBar); err != nil { | ||
| return err | ||
| } | ||
| if err := image.Label(out, filename, src, opts.Language, face, !opts.NoLineNum); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| package cli | ||
|
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| type Options struct { | ||
| Output string `short:"o" long:"output" default:"output.png" description:"Write output image to specific filepath"` | ||
| BackgroundColor string `short:"b" long:"background" default:"#aaaaff" description:"Background color of the image"` | ||
| Font string `short:"f" long:"font" default:"Hack-Regular" description:"Specify font eg. 'Hack-Bold'"` | ||
| Language string `short:"l" long:"language" description:"The language for syntax highlighting"` | ||
| ListFonts bool `long:"list-fonts" description:"List all available fonts in your system"` | ||
| NoLineNum bool `long:"no-line-number" description:"Hide the line number"` | ||
| NoWindowAccessBar bool `long:"no-window-access-bar" description:"Hide the window access bar"` | ||
| } | ||
|
|
||
| var opts Options |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| package cli | ||
|
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||
| const Usage = `USAGE: | ||
| %s [FLAGS] [FILE] | ||
| FLAGS: | ||
| -o, --output <PATH> Write output image to specific filepath [default: ./output.png] | ||
| -b, --background <COLOR> Background color of the image [default: #aaaaff] | ||
| -f, --font <FONT> Specify font eg. 'Hack-Bold' | ||
| -l, --language <LANG> The language for syntax highlighting eg. 'go' | ||
| --list-fonts List all available fonts in your system | ||
| --no-line-number Hide the line number | ||
| --no-window-access-bar Hide the window access bar | ||
| AUTHOR: | ||
| matsuyoshi30 <sfbgwm30@gmail.com> | ||
| ` |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| package main | ||
|
|
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| import ( | ||
| "fmt" | ||
| "os" | ||
|
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| "github.com/matsuyoshi30/germanium/cli" | ||
| ) | ||
|
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| func main() { | ||
| if err := cli.Run(); err != nil { | ||
| fmt.Fprintln(os.Stderr, err) | ||
| os.Exit(1) | ||
| } | ||
| return | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| #!/bin/bash | ||
| ../../../germanium main.go -o default-gen.png |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| #!/bin/bash | ||
| ../../../germanium --no-line-number main.go -o no-line-num-gen.png |
File renamed without changes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| #!/bin/bash | ||
| ../../../germanium --no-window-access-bar main.go -o no-window-access-bar-gen.png |
File renamed without changes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| #!/bin/bash | ||
| ../../../germanium --no-line-number --no-window-access-bar main.go -o only-editor-gen.png |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| package main | ||
| package germanium | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| package germanium |
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