init

parses and logs exif info.

main.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+
+	"github.com/rwcarlsen/goexif/exif"
+)
+
+const usage = "picmv <indir> <outdir>"
+
+type input struct {
+	path  string
+	year  string
+	month string
+}
+
+func main() {
+	if len(os.Args) != 3 {
+		fmt.Fprintf(os.Stderr, "%s\n", usage)
+		os.Exit(1)
+	}
+	in, out := os.Args[1], os.Args[2]
+	log.Printf("%+v", in)
+	log.Printf("%+v", out)
+
+	count := 0
+	files := make(chan input, 20)
+	// seen := map[string]bool{}
+
+	go func() {
+		err := filepath.Walk(
+			in,
+			func(path string, info os.FileInfo, err error) error {
+				if info.IsDir() {
+					return nil
+				}
+				f, err := os.Open(path)
+				if err != nil {
+					return fmt.Errorf("problem opening file: %v", err)
+				}
+				defer f.Close()
+				x, err := exif.Decode(f)
+				if err != nil {
+					log.Printf("problem decoding exif data %q: %v", path, err)
+					return nil
+				}
+				tm, err := x.DateTime()
+				if err != nil {
+					return fmt.Errorf("problem getting datetime from pic %v: %v", path, err)
+				}
+				files <- input{
+					path:  path,
+					year:  fmt.Sprintf("%04d", tm.Year()),
+					month: fmt.Sprintf("%02d", tm.Month()),
+				}
+				return nil
+			},
+		)
+		if err != nil {
+			log.Printf("%+v", err)
+		}
+		close(files)
+	}()
+
+	for in := range files {
+		log.Printf("%+v", in)
+		count++
+	}
+	log.Printf("%+v", count)
+}