grokify/mogo

package main

import (
    "image/jpeg"
    "log"

    "github.com/grokify/mogo/image/imageutil"
    flags "github.com/jessevdk/go-flags"
)

type cliOptions struct {
    Input   string `short:"i" long:"input dir/file" description:"A dir or file" value-name:"FILE" required:"true"`
    Output  string `short:"o" long:"output dir/filefile" description:"A dir or file" required:"true"`
    Height  uint   `short:"h" long:"height" description:"Height"`
    Width   uint   `short:"w" long:"width" description:"Width"`
    Quality int    `short:"q" long:"quality" description:"Quality"`
}

func main() {
    opts := cliOptions{}
    _, err := flags.Parse(&opts)
    if err != nil {
        log.Fatal(err)
    }

    err = imageutil.ResizePathJPEG(opts.Input, opts.Output, opts.Width, opts.Height,
        &imageutil.JPEGEncodeOptions{
            Options: &jpeg.Options{Quality: opts.Quality},
        })
    if err != nil {
        log.Fatal(err)
    }

    /*
        isDirSrc, err := osutil.IsDir(opts.Input)
        logutil.FatalErr(err)

        if isDirSrc {
            isDirOut, err := osutil.IsDir(opts.Output)
            logutil.FatalErr(err)
            if !isDirOut {
                logutil.FatalErr(errors.New("output must be a directory"))
            }
            // write regexp to match .jpg or .jpeg file extensions
            files, err := osutil.ReadDirMore(opts.Input, imageutil.RxFileExtensionJPG, false, true, false)
            logutil.FatalErr(err)
            n := len(files)
            for i, e := range files {
                fmt.Printf("Processing %d of %d: %s\n", i+1, n, e.Name())
                srcPath := filepath.Join(opts.Input, e.Name())
                outPath := filepath.Join(opts.Output, e.Name())
                err := imageutil.ResizeFileJPEG(srcPath, outPath, opts.Width, opts.Height, jopts)
                logutil.FatalErr(err)
            }
        } else {
            err := imageutil.ResizeFileJPEG(opts.Input, opts.Output, opts.Width, opts.Height, jopts)
            logutil.FatalErr(err)
        }
    */
}