71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package cmd
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
"os"
|
|
"path/filepath"
|
|
"regexp"
|
|
"time"
|
|
|
|
"github.com/disintegration/imaging"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
// imageCmd represents the image command
|
|
var (
|
|
imageCmd = &cobra.Command{
|
|
Use: "image",
|
|
Short: "A tool for processing images to my desired format, size and naming",
|
|
Run: func(cmd *cobra.Command, args []string) {
|
|
if source == "" {
|
|
log.Fatalf("The source should be provided")
|
|
}
|
|
if !localDatePattern.Match([]byte(localDate)) {
|
|
log.Fatalf("This is an invalid local date format %s", localDate)
|
|
}
|
|
|
|
process()
|
|
},
|
|
}
|
|
|
|
width = 1280
|
|
source = ""
|
|
output = executablePath()
|
|
localDate = time.Now().Format("20060102")
|
|
localDatePattern = regexp.MustCompile(`^\d{8}$`)
|
|
)
|
|
|
|
func init() {
|
|
imageCmd.Flags().StringVarP(&source, "source", "", "", "The image file path (absolute of relative) that you want to process")
|
|
imageCmd.Flags().StringVarP(&output, "output", "", output, "The output path")
|
|
imageCmd.Flags().IntVarP(&width, "width", "", 1280, "The compressed width for the given image")
|
|
imageCmd.Flags().StringVarP(&localDate, "local", "", localDate, "The local date time, in yyyyMMdd format")
|
|
|
|
rootCmd.AddCommand(imageCmd)
|
|
}
|
|
|
|
func executablePath() string {
|
|
ex, _ := os.Executable()
|
|
return filepath.Dir(ex)
|
|
}
|
|
|
|
func process() {
|
|
// Open a test image.
|
|
src, err := imaging.Open(source)
|
|
if err != nil {
|
|
log.Fatalf("failed to open image: %v", err)
|
|
}
|
|
|
|
// Resize the cropped image to width = 200px preserving the aspect ratio.
|
|
src = imaging.Resize(src, width, 0, imaging.Lanczos)
|
|
|
|
// Save the resulting image as JPEG.
|
|
target := localDate + time.Now().Format("150405") + fmt.Sprintf("%02d", time.Now().Nanosecond()%100) + ".jpg"
|
|
|
|
err = imaging.Save(src, filepath.Join(output, target))
|
|
if err != nil {
|
|
log.Fatalf("failed to save image: %v", err)
|
|
}
|
|
}
|