From a5a334eae9c2f3d6d3238fe58b24c8c5dcae2c86 Mon Sep 17 00:00:00 2001 From: Milan Nikolic Date: Fri, 30 Oct 2015 02:33:45 +0100 Subject: [PATCH] initial commit --- AUTHORS | 1 + COPYING | 674 ++++++++++++++++++++++++++++++++++++++++++ README.md | 91 ++++++ cbconvert.go | 820 +++++++++++++++++++++++++++++++++++++++++++++++++++ make.bash | 18 ++ 5 files changed, 1604 insertions(+) create mode 100644 AUTHORS create mode 100644 COPYING create mode 100644 README.md create mode 100644 cbconvert.go create mode 100755 make.bash diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..28cd2c5 --- /dev/null +++ b/AUTHORS @@ -0,0 +1 @@ +Milan Nikolic diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..55d6853 --- /dev/null +++ b/README.md @@ -0,0 +1,91 @@ +CBconvert +========= + +Introduction +------------ + +CBconvert is a [Comic Book](http://en.wikipedia.org/wiki/Comic_Book_Archive_file) convert tool. + + +Features +-------- + + - reads rar, zip, 7z, gz, bz2, cbr, cbz, cb7, cbt, pdf and plain directory + - always saves processed comic in cbz (zip) format + - images can be converted to JPEG, PNG or 4-Bit BMP (16 colors) format + - choose resize algorithm (NearestNeighbor, Bilinear, Bicubic, MitchellNetravali, Lanczos2/3) + - export covers from comics + - create thumbnails from covers by [freedesktop](http://www.freedesktop.org/wiki/) specification + +Download +-------- + + - [Windows static build](https://github.com/gen2brain/cbconvert/releases/download/0.1.0/bukanir-0.1.0.zip) + - [Linux 64bit build](https://github.com/gen2brain/cbconvert/releases/download/0.1.0/bukanir-0.1.0.tar.gz) + +Compile +------- + +Install poppler, poppler-glib, cairo, libarchive and imagemagick dev packages: + apt-get install libpoppler-glib-dev libcairo2-dev libarchive-dev libmagickcore-dev libmagickwand-dev + +Install go package: + go get github.com/gen2brain/cbconvert + go install github.com/gen2brain/cbconvert && cbconvert + +Dependencies +------------ + + go get github.com/MStoykov/go-libarchive + go get github.com/cheggaaa/go-poppler + go get github.com/cheggaaa/pb + go get github.com/gographics/imagick/imagick + go get github.com/hotei/bmp + go get github.com/nfnt/resize + go get github.com/skarademir/naturalsort + go get github.com/ungerik/go-cairo + go get gopkg.in/alecthomas/kingpin.v2 + +Using +----- + + usage: cbconvert [] ... + + Comic Book convert tool. + + Flags: + --help Show context-sensitive help (also try --help-long and --help-man). + --version Show application version. + -p, --png encode images to PNG instead of JPEG + -b, --bmp encode images to 4-Bit BMP instead of JPEG + -w, --width=0 image width + -h, --height=0 image height + -q, --quality=75 JPEG image quality + -n, --norgb do not convert images with RGB colorspace + -i, --interpolation=1 0=NearestNeighbor, 1=Bilinear, 2=Bicubic, 3=MitchellNetravali, 4=Lanczos2, 5=Lanczos3 + -s, --suffix=SUFFIX add suffix to file basename + -c, --cover extract cover + -t, --thumbnail extract cover thumbnail (freedesktop spec.) + -o, --outdir="." output directory + -m, --size=0 process only files larger then size (in MB) + -r, --recursive process subdirectories recursively + -v, --quiet hide console output + + Args: + filename or directory + + +Examples +-------- + + cbconvert --recursive --width 1200 --size 60 /media/comics/Thorgal/ + +Rescale images to 1200px for all supported files found in directory with size larger then 60MB. + + cbconvert --bmp --outdir ~/comics /media/comics/Garfield/Garfield_01.cbz + +Convert all images in archive to 4bit BMP image and save result in ~/comics directory. [BMP](http://en.wikipedia.org/wiki/BMP_file_format) format is uncompressed, for black&white pages very good choice. Archive size can be smaller 2-3x and file will be readable by comic readers. + + cbconvert --interpolation=5 --outdir ~/.thumbnails/normal --thumbnail /media/comics/GrooTheWanderer/ + +Generate thumbnails by freedesktop specification in ~/.thumbnails/normal directory, Lanczos3 algorithm is used for resizing. diff --git a/cbconvert.go b/cbconvert.go new file mode 100644 index 0000000..99d7ff1 --- /dev/null +++ b/cbconvert.go @@ -0,0 +1,820 @@ +// Author: Milan Nikolic +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . + +package main + +import ( + "archive/zip" + "bytes" + "crypto/md5" + "errors" + "fmt" + "image" + "image/color" + _ "image/gif" + "image/jpeg" + "image/png" + "io" + "io/ioutil" + "mime" + "os" + "os/signal" + "path/filepath" + "runtime" + "sort" + "strconv" + "strings" + "sync" + "syscall" + + "github.com/MStoykov/go-libarchive" + "github.com/cheggaaa/go-poppler" + "github.com/cheggaaa/pb" + "github.com/gographics/imagick/imagick" + _ "github.com/hotei/bmp" + "github.com/nfnt/resize" + "github.com/skarademir/naturalsort" + "gopkg.in/alecthomas/kingpin.v2" +) + +var ( + opts options + workdir string + nfiles int + current int + wg sync.WaitGroup +) + +// Command line options +type options struct { + ToPNG bool // encode images to PNG instead of JPEG + ToBMP bool // encode images to 4-Bit BMP instead of JPEG + Quality int // JPEG image quality + NoRGB bool // do not convert images with RGB colorspace + Width uint // image width + Height uint // image height + Interpolation int // 0=NearestNeighbor, 1=Bilinear, 2=Bicubic, 3=MitchellNetravali, 4=Lanczos2, 5=Lanczos3 + Suffix string // add suffix to file basename + Cover bool // extract cover + Thumbnail bool // extract cover thumbnail (freedesktop spec.) + Outdir string // output directory + Recursive bool // process subdirectories recursively + Size int64 // process only files larger then size (in MB) + Quiet bool // hide console output +} + +// Command line arguments +var arguments []string + +// Limits go routines to number of CPUs + 1 +var throttle = make(chan int, runtime.NumCPU()+1) + +// Converts image +func convertImage(img image.Image, index int, pathName string) { + defer wg.Done() + + var ext string = "jpg" + if opts.ToPNG { + ext = "png" + } else if opts.ToBMP { + ext = "bmp" + } + + var filename string + if pathName != "" { + filename = filepath.Join(workdir, fmt.Sprintf("%s.%s", getBasename(pathName), ext)) + } else { + filename = filepath.Join(workdir, fmt.Sprintf("%03d.%s", index, ext)) + } + + var i image.Image + if opts.Width > 0 || opts.Height > 0 { + i = resize.Resize(opts.Width, opts.Height, img, + resize.InterpolationFunction(opts.Interpolation)) + } else { + i = img + } + + if opts.ToPNG { + // convert image to PNG + f, err := os.Create(filename) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Create: %v\n", err.Error()) + } + defer f.Close() + png.Encode(f, i) + } else if opts.ToBMP { + // convert image to 4-Bit - 16 colors BMP + imagick.Initialize() + + mw := imagick.NewMagickWand() + defer mw.Destroy() + + b := new(bytes.Buffer) + jpeg.Encode(b, i, &jpeg.Options{jpeg.DefaultQuality}) + + err := mw.ReadImageBlob(b.Bytes()) + if err != nil { + fmt.Fprintf(os.Stderr, "Error ReadImageBlob: %v\n", err.Error()) + } + + w := imagick.NewPixelWand() + w.SetColor("black") + defer w.Destroy() + + mw.SetImageBackgroundColor(w) + mw.SetImageAlphaChannel(imagick.ALPHA_CHANNEL_REMOVE) + mw.SetImageAlphaChannel(imagick.ALPHA_CHANNEL_DEACTIVATE) + mw.SetImageMatte(false) + mw.SetImageCompression(imagick.COMPRESSION_NO) + mw.QuantizeImage(16, imagick.COLORSPACE_SRGB, 8, true, true) + mw.WriteImage(fmt.Sprintf("BMP3:%s", filename)) + } else { + // convert image to JPEG (default) + f, err := os.Create(filename) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Create: %v\n", err.Error()) + } + defer f.Close() + jpeg.Encode(f, i, &jpeg.Options{opts.Quality}) + } + + <-throttle +} + +// Converts pdf file to cbz +func convertPDF(file string) { + workdir, _ = ioutil.TempDir(os.TempDir(), "cbc") + + doc, err := poppler.Open(file) + if err != nil { + fmt.Fprintf(os.Stderr, "Skipping %s, error: %v", file, err.Error()) + return + } + + npages := doc.GetNPages() + + var bar *pb.ProgressBar + if !opts.Quiet { + bar = pb.New(npages) + bar.ShowTimeLeft = false + bar.Prefix(fmt.Sprintf("Converting %d of %d: ", current, nfiles)) + bar.Start() + } + + for n := 0; n < npages; n++ { + if !opts.Quiet { + bar.Increment() + } + + page := doc.GetPage(n) + images := page.Images() + + if len(images) == 1 { + throttle <- 1 + wg.Add(1) + + surface := images[0].GetSurface() + go convertImage(surface.GetImage(), page.Index(), "") + } else { + // FIXME merge images? + } + } + wg.Wait() +} + +// Converts archive to cbz +func convertArchive(file string) { + workdir, _ = ioutil.TempDir(os.TempDir(), "cbc") + + f, err := os.Open(file) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Open: %v\n", err.Error()) + return + } + defer f.Close() + + reader, err := archive.NewReader(f) + if err != nil { + fmt.Fprintf(os.Stderr, "Error NewReader: %v\n", err.Error()) + } + defer reader.Free() + defer reader.Close() + + var bar *pb.ProgressBar + if !opts.Quiet { + s, _ := f.Stat() + bar = pb.New(int(s.Size())) + bar.SetUnits(pb.U_BYTES) + bar.ShowTimeLeft = false + bar.Prefix(fmt.Sprintf("Converting %d of %d: ", current, nfiles)) + bar.Start() + } + + for { + entry, err := reader.Next() + if err != nil { + if err == archive.ErrArchiveEOF { + break + } else { + fmt.Fprintf(os.Stderr, "Error Next: %v\n", err.Error()) + continue + } + } + + stat := entry.Stat() + if stat.Mode()&os.ModeType != 0 || stat.IsDir() { + continue + } + + if !opts.Quiet { + size := reader.Size() + bar.Set(size) + } + + pathname := entry.PathName() + + if isImage(pathname) { + buf := new(bytes.Buffer) + _, err := buf.ReadFrom(reader) + if err != nil { + fmt.Fprintf(os.Stderr, "Error ReadFrom: %v\n", err.Error()) + continue + } + + img, err := decodeImage(bytes.NewReader(buf.Bytes()), pathname) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Decode: %v\n", err.Error()) + continue + } + + if opts.NoRGB && !isGrayScale(img) { + copyFile(bytes.NewReader(buf.Bytes()), filepath.Join(workdir, filepath.Base(pathname))) + continue + } + + if img != nil { + throttle <- 1 + wg.Add(1) + go convertImage(img, 0, pathname) + } + } else { + copyFile(reader, filepath.Join(workdir, filepath.Base(pathname))) + } + } + wg.Wait() +} + +// Converts directory to cbz +func convertDirectory(path string) { + workdir, _ = ioutil.TempDir(os.TempDir(), "cbc") + + images := getImages(path) + + var bar *pb.ProgressBar + if !opts.Quiet { + bar = pb.New(nfiles) + bar.ShowTimeLeft = false + bar.Prefix(fmt.Sprintf("Converting %d of %d: ", current, nfiles)) + bar.Start() + } + + for index, img := range images { + if opts.Quiet { + bar.Increment() + } + + f, err := os.Open(img) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Open: %v\n", err.Error()) + continue + } + + i, err := decodeImage(f, img) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Decode: %v\n", err.Error()) + continue + } + + if opts.NoRGB && !isGrayScale(i) { + copyFile(f, filepath.Join(workdir, filepath.Base(img))) + continue + } + + f.Close() + + if i != nil { + throttle <- 1 + wg.Add(1) + go convertImage(i, index, img) + } + } + wg.Wait() +} + +// Saves workdir to cbz archive +func saveArchive(file string) { + defer os.RemoveAll(workdir) + + zipname := filepath.Join(opts.Outdir, fmt.Sprintf("%s%s.cbz", getBasename(file), opts.Suffix)) + zipfile, err := os.Create(zipname) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Create: %v\n", err.Error()) + return + } + defer zipfile.Close() + + z := zip.NewWriter(zipfile) + files, _ := ioutil.ReadDir(workdir) + + var bar *pb.ProgressBar + if !opts.Quiet { + bar = pb.New(len(files)) + bar.ShowTimeLeft = false + bar.Prefix(fmt.Sprintf("Compressing %d of %d: ", current, nfiles)) + bar.Start() + } + + for _, file := range files { + if !opts.Quiet { + bar.Increment() + } + + r, err := ioutil.ReadFile(filepath.Join(workdir, file.Name())) + if err != nil { + fmt.Fprintf(os.Stderr, "Error ReadFile: %v\n", err.Error()) + continue + } + + w, err := z.Create(file.Name()) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Create: %v\n", err.Error()) + continue + } + w.Write(r) + } + z.Close() +} + +// Unpacks archive to directory +func unpackArchive(file string, dir string) { + f, err := os.Open(file) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Open: %v\n", err.Error()) + return + } + defer f.Close() + + reader, err := archive.NewReader(f) + if err != nil { + fmt.Fprintf(os.Stderr, "Error NewReader: %v\n", err.Error()) + return + } + defer reader.Free() + defer reader.Close() + + for { + entry, err := reader.Next() + if err != nil { + if err == archive.ErrArchiveEOF { + break + } else { + continue + } + } + + if entry.Stat().Mode()&os.ModeType == 0 { + err = copyFile(reader, filepath.Join(dir, entry.PathName())) + } + + if err != nil { + fmt.Fprintf(os.Stderr, "Error: %v\n", err.Error()) + } + } +} + +// Extracts cover from archive +func coverArchive(file string) (image.Image, error) { + tmpdir, _ := ioutil.TempDir(os.TempDir(), "cbc") + defer os.RemoveAll(tmpdir) + + unpackArchive(file, tmpdir) + + images := getImages(tmpdir) + if len(images) == 0 { + return nil, errors.New("No images") + } + + cover := getCover(images) + + p, err := os.Open(cover) + if err != nil { + return nil, err + } + defer p.Close() + + img, err := decodeImage(p, cover) + if err != nil { + return nil, err + } + + return img, nil +} + +// Extracts cover from pdf +func coverPDF(file string) (image.Image, error) { + doc, err := poppler.Open(file) + if err != nil { + return nil, err + } + + page := doc.GetPage(0) + images := page.Images() + + if len(images) == 1 { + surface := images[0].GetSurface() + img := surface.GetImage() + + if img == nil { + return nil, errors.New("Image is nil") + } + + return img, nil + } + + return nil, nil +} + +// Extracts cover from directory +func coverDirectory(dir string) (image.Image, error) { + images := getImages(dir) + cover := getCover(images) + + p, err := os.Open(cover) + if err != nil { + return nil, err + } + defer p.Close() + + img, err := decodeImage(p, cover) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Decode: %v\n", err.Error()) + return nil, err + } + + if img == nil { + return nil, errors.New("Image is nil") + } + + return img, nil +} + +// Returns list of found comic files +func getFiles() []string { + var files []string + + walkFiles := func(fp string, f os.FileInfo, err error) error { + if !f.IsDir() { + if isComic(fp) { + if isSize(f.Size()) { + files = append(files, fp) + } + } + } + return nil + } + + for _, arg := range arguments { + path, _ := filepath.Abs(arg) + stat, err := os.Stat(path) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Stat: %v\n", err.Error()) + continue + } + + if !stat.IsDir() { + if isComic(path) { + if isSize(stat.Size()) { + files = append(files, path) + } + } + } else { + if opts.Recursive { + filepath.Walk(path, walkFiles) + } else { + fs, _ := ioutil.ReadDir(path) + for _, f := range fs { + if isComic(f.Name()) { + if isSize(f.Size()) { + files = append(files, f.Name()) + } + } + } + } + + if len(files) == 0 { + // append plain directory with images + files = append(files, path) + } + } + } + + return files +} + +// Returns sorted list of found image files for given directory +func getImages(path string) []string { + var images []string + + walkFiles := func(fp string, f os.FileInfo, err error) error { + if !f.IsDir() && f.Mode()&os.ModeType == 0 { + if f.Size() > 0 && isImage(fp) { + images = append(images, fp) + } + } + return nil + } + + f, _ := filepath.Abs(path) + stat, err := os.Stat(f) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Stat: %v\n", err.Error()) + return images + } + + if !stat.IsDir() && stat.Mode()&os.ModeType == 0 { + if isImage(f) { + images = append(images, f) + } + } else { + filepath.Walk(f, walkFiles) + } + + return images +} + +// Returns the filename that is the most likely to be the cover +func getCover(images []string) string { + for _, i := range images { + if strings.HasPrefix(i, "cover") || strings.HasPrefix(i, "front") { + return i + } + } + + sort.Sort(naturalsort.NaturalSort(images)) + return images[0] +} + +// Checks if file is comic +func isComic(f string) bool { + var types = []string{".rar", ".zip", ".7z", ".gz", ".bz2", + ".cbr", ".cbz", ".cb7", ".cbt", ".pdf"} + for _, t := range types { + if strings.ToLower(filepath.Ext(f)) == t { + return true + } + } + return false +} + +// Checks if file is image +func isImage(f string) bool { + var types = []string{".jpg", ".jpeg", ".jpe", + ".png", ".gif", ".bmp"} + for _, t := range types { + if strings.ToLower(filepath.Ext(f)) == t { + return true + } + } + return false +} + +// Checks size of file +func isSize(size int64) bool { + if opts.Size > 0 { + if size < opts.Size*(1024*1024) { + return false + } + } + return true +} + +// Checks if image is grayscale +func isGrayScale(img image.Image) bool { + model := img.ColorModel() + if model == color.GrayModel || model == color.Gray16Model { + return true + } + return false +} + +// Decodes image from reader +func decodeImage(reader io.Reader, filename string) (i image.Image, err error) { + defer func() { + if r := recover(); r != nil { + fmt.Fprintf(os.Stderr, "Recovered in decodeImage %s: %v\n", filename, r) + } + }() + + i, _, err = image.Decode(reader) + return i, err +} + +// Copies reader to file +func copyFile(reader io.Reader, filename string) error { + os.MkdirAll(filepath.Dir(filename), 0755) + + file, err := os.Create(filename) + if err != nil { + return err + } + defer file.Close() + + _, err = io.Copy(file, reader) + if err != nil { + return err + } + + return nil +} + +// Returns basename without extension +func getBasename(file string) string { + basename := strings.TrimSuffix(filepath.Base(file), filepath.Ext(file)) + basename = strings.TrimSuffix(basename, ".tar") + return basename +} + +// Extracts cover +func extractCover(file string, info os.FileInfo) { + var err error + var cover image.Image + if info.IsDir() { + cover, err = coverDirectory(file) + } else if strings.ToLower(filepath.Ext(file)) == ".pdf" { + cover, err = coverPDF(file) + } else { + cover, err = coverArchive(file) + } + + if err != nil { + fmt.Fprintf(os.Stderr, "Error Cover: %v\n", err.Error()) + return + } + + if opts.Width > 0 || opts.Height > 0 { + cover = resize.Resize(opts.Width, opts.Height, cover, + resize.InterpolationFunction(opts.Interpolation)) + } + + filename := filepath.Join(opts.Outdir, fmt.Sprintf("%s.jpg", getBasename(file))) + f, err := os.Create(filename) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Create: %v\n", err.Error()) + return + } + defer f.Close() + + jpeg.Encode(f, cover, &jpeg.Options{opts.Quality}) +} + +// Extracts thumbnail +func extractThumbnail(file string, info os.FileInfo) { + var err error + var cover image.Image + if info.IsDir() { + cover, err = coverDirectory(file) + } else if strings.ToLower(filepath.Ext(file)) == ".pdf" { + cover, err = coverPDF(file) + } else { + cover, err = coverArchive(file) + } + + if err != nil { + fmt.Fprintf(os.Stderr, "Error Thumbnail: %v\n", err.Error()) + return + } + + if opts.Width > 0 || opts.Height > 0 { + cover = resize.Resize(opts.Width, opts.Height, cover, + resize.InterpolationFunction(opts.Interpolation)) + } else { + cover = resize.Resize(256, 0, cover, + resize.InterpolationFunction(opts.Interpolation)) + } + + imagick.Initialize() + + mw := imagick.NewMagickWand() + defer mw.Destroy() + + b := new(bytes.Buffer) + png.Encode(b, cover) + + err = mw.ReadImageBlob(b.Bytes()) + if err != nil { + fmt.Fprintf(os.Stderr, "Error ReadImageBlob: %v\n", err.Error()) + } + + fileuri := "file://" + file + filename := filepath.Join(opts.Outdir, fmt.Sprintf("%x.png", md5.Sum([]byte(fileuri)))) + + mw.SetImageFormat("png") + mw.SetImageProperty("Software", "cbconvert") + mw.SetImageProperty("Description", "Thumbnail of "+fileuri) + mw.SetImageProperty("Thumb::URI", fileuri) + mw.SetImageProperty("Thumb::MTime", strconv.FormatInt(info.ModTime().Unix(), 10)) + mw.SetImageProperty("Thumb::Size", strconv.FormatInt(info.Size(), 10)) + mw.SetImageProperty("Thumb::Mimetype", mime.TypeByExtension(filepath.Ext(file))) + + mw.WriteImage(filename) +} + +// Converts comic book +func convertComic(file string, info os.FileInfo) { + if info.IsDir() { + convertDirectory(file) + saveArchive(file) + } else if strings.ToLower(filepath.Ext(file)) == ".pdf" { + convertPDF(file) + saveArchive(file) + } else { + convertArchive(file) + saveArchive(file) + } +} + +// Parses command line flags +func parseFlags() { + opts = options{} + kingpin.Version("CBconvert 0.1.0") + kingpin.CommandLine.Help = "Comic Book convert tool." + kingpin.Flag("png", "encode images to PNG instead of JPEG").Short('p').BoolVar(&opts.ToPNG) + kingpin.Flag("bmp", "encode images to 4-Bit BMP instead of JPEG").Short('b').BoolVar(&opts.ToBMP) + kingpin.Flag("width", "image width").Default(strconv.Itoa(0)).Short('w').UintVar(&opts.Width) + kingpin.Flag("height", "image height").Default(strconv.Itoa(0)).Short('h').UintVar(&opts.Height) + kingpin.Flag("quality", "JPEG image quality").Short('q').Default(strconv.Itoa(jpeg.DefaultQuality)).IntVar(&opts.Quality) + kingpin.Flag("norgb", "do not convert images with RGB colorspace").Short('n').BoolVar(&opts.NoRGB) + kingpin.Flag("interpolation", "0=NearestNeighbor, 1=Bilinear, 2=Bicubic, 3=MitchellNetravali, 4=Lanczos2, 5=Lanczos3").Short('i'). + Default(strconv.Itoa(int(resize.Bilinear))).IntVar(&opts.Interpolation) + kingpin.Flag("suffix", "add suffix to file basename").Short('s').StringVar(&opts.Suffix) + kingpin.Flag("cover", "extract cover").Short('c').BoolVar(&opts.Cover) + kingpin.Flag("thumbnail", "extract cover thumbnail (freedesktop spec.)").Short('t').BoolVar(&opts.Thumbnail) + kingpin.Flag("outdir", "output directory").Default(".").Short('o').StringVar(&opts.Outdir) + kingpin.Flag("size", "process only files larger then size (in MB)").Short('m').Default(strconv.Itoa(0)).Int64Var(&opts.Size) + kingpin.Flag("recursive", "process subdirectories recursively").Short('r').BoolVar(&opts.Recursive) + kingpin.Flag("quiet", "hide console output").Short('v').BoolVar(&opts.Quiet) + kingpin.Arg("args", "filename or directory").Required().ExistingFilesOrDirsVar(&arguments) + kingpin.Parse() +} + +func main() { + parseFlags() + + c := make(chan os.Signal, 3) + signal.Notify(c, os.Interrupt, syscall.SIGHUP, syscall.SIGTERM) + go func() { + for _ = range c { + os.RemoveAll(workdir) + os.Exit(1) + } + }() + + if _, err := os.Stat(opts.Outdir); err != nil { + os.MkdirAll(opts.Outdir, 0777) + } + + files := getFiles() + nfiles = len(files) + for n, file := range files { + current = n + 1 + + stat, err := os.Stat(file) + if err != nil { + fmt.Fprintf(os.Stderr, "Error Stat: %v\n", err.Error()) + continue + } + + if opts.Cover { + extractCover(file, stat) + continue + } else if opts.Thumbnail { + extractThumbnail(file, stat) + continue + } + + convertComic(file, stat) + } +} diff --git a/make.bash b/make.bash new file mode 100755 index 0000000..f45569a --- /dev/null +++ b/make.bash @@ -0,0 +1,18 @@ +#!/usr/bin/env bash + +mkdir -p build + +CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -o build/cbconvert +strip build/cbconvert + +CGO_LDFLAGS="-L/usr/i686-pc-mingw32/usr/lib" \ +CGO_CFLAGS="-I/usr/i686-pc-mingw32/usr/include -I/usr/i686-pc-mingw32/usr/include/poppler/glib -I/usr/i686-pc-mingw32/usr/include/glib-2.0 -I/usr/i686-pc-mingw32/usr/include/cairo" \ +CGO_CXXFLAGS="-I/usr/i686-pc-mingw32/usr/include -I/usr/i686-pc-mingw32/usr/include/poppler/glib -I/usr/i686-pc-mingw32/usr/include/glib-2.0 -I/usr/i686-pc-mingw32/usr/include/cairo" \ +CGO_CPPFLAGS="-I/usr/i686-pc-mingw32/usr/include -I/usr/i686-pc-mingw32/usr/include/poppler/glib -I/usr/i686-pc-mingw32/usr/include/glib-2.0 -I/usr/i686-pc-mingw32/usr/include/cairo" \ +PKG_CONFIG=/usr/bin/i686-pc-mingw32-pkg-config \ +PKG_CONFIG_PATH=/usr/i686-pc-mingw32/usr/lib/pkgconfig \ +PKG_CONFIG_LIBDIR=/usr/i686-pc-mingw32/usr/lib/pkgconfig \ +CC="i686-pc-mingw32-gcc" CXX="i686-pc-mingw32-g++" \ +CC_FOR_TARGET=i686-pc-mingw32-gcc CXX_FOR_TARGET=i686-pc-mingw32-g++ \ +CGO_ENABLED=1 GOOS=windows GOARCH=386 go build -x -work -o build/cbconvert.exe -ldflags "-linkmode external -extldflags -static" +i686-pc-mingw32-strip build/cbconvert.exe