range-gen/args.go

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package main
import (
"github.com/juju/gnuflag"
"range-gen/output"
"errors"
"os"
)
var (
ArgInput string
ArgInputIsSet bool = false
ArgOutput string
ArgOutputIsSet bool = false
ArgThreshold string
ArgThresholdIsSet bool = false
ArgJobs int = 0
ArgDefaultNoiseLevel int = 0
ArgVersion bool = false
ArgHelp bool = false
)
func printHelp() {
output.Println("Сreates a list of scene ranges based on a set of frames from the video")
output.Println("")
output.Println("Usage: range-gen [option]... <input_dir> <output_file> <threshold>")
output.Println("input_dir Directory with png images")
output.Println("output_file Range list file")
output.Println("threshold Image similarity threshold (0-1024)")
output.Println("")
output.Println("Options:")
output.Println(" -j, --jobs N Allow N jobs at once")
output.Println(" -n, --noise Default noise level for each range")
output.Println(" -h, --help Show this page")
output.Println(" -v, --version Show version")
}
func printVersion() {
output.Println("range-gen ", Version)
}
func init() {
gnuflag.IntVar(&ArgJobs, "jobs", 0, "")
gnuflag.IntVar(&ArgJobs, "j", 0, "")
gnuflag.IntVar(&ArgDefaultNoiseLevel, "noise", -1, "")
gnuflag.IntVar(&ArgDefaultNoiseLevel, "n", -1, "")
gnuflag.BoolVar(&ArgVersion, "version", false, "")
gnuflag.BoolVar(&ArgVersion, "v", false, "")
gnuflag.BoolVar(&ArgHelp, "help", false, "")
gnuflag.BoolVar(&ArgHelp, "h", false, "")
}
func parseArgs() error {
gnuflag.Parse(false)
switch {
case ArgHelp:
printHelp()
os.Exit(EXIT_SUCCESS)
case ArgVersion:
printVersion()
os.Exit(EXIT_SUCCESS)
}
for i := 0; i < 3 && i < gnuflag.NArg(); i++ {
switch i {
case 0:
ArgInput = gnuflag.Arg(0)
ArgInputIsSet = true
case 1:
ArgOutput = gnuflag.Arg(1)
ArgOutputIsSet = true
case 2:
ArgThreshold = gnuflag.Arg(2)
ArgThresholdIsSet = true
}
}
if !ArgInputIsSet {
return errors.New("Input directory not specified")
}
if !ArgOutputIsSet {
return errors.New("Output file not specified")
}
if !ArgThresholdIsSet {
return errors.New("Threshold not specified")
}
return nil
}