Fill LastModified for Score types

compiler/compile.go

@@ -52,7 +52,10 @@ func generateScores() func(string, os.FileInfo) error {
 		switch filepath.Ext(path) {
 		case ".ly":
 			log.WithFields(log.Fields{"path": path}).Info("adding lilypond file")
-			scores = append(scores, &settings.Score{Path: path})
+			scores = append(scores, &settings.Score{
+				Path:         path,
+				LastModified: file.LastModified,
+			})
 
 		case ".json":
 			if filepath.Base(path) != "ponder.json" {

helpers/file_utils.go

@@ -18,6 +18,7 @@ import (
 	"errors"
 	"os"
 	"path/filepath"
+	"time"
 
 	log "github.com/Sirupsen/logrus"
 )
@@ -54,6 +55,16 @@ func Exists(path string) bool {
 	return false
 }
 
+// LastModified returns the time the file on the path was last modified,
+// if file lookup fails the current time is returned.
+func LastModified(path string) time.Time {
+	stat, err := os.Stat(path)
+	if err == nil {
+		return stat.LastModified
+	}
+	return time.Now()
+}
+
 // FindFileDir returns the path of the
 func FindFileDir(file string) (string, error) {
 	wd, err := os.Getwd()

settings/score.go

@@ -18,6 +18,8 @@ import (
 	"encoding/json"
 	"io/ioutil"
 	"time"
+
+	"github.com/jjdekker/ponder/helpers"
 )
 
 // Score represents the settings for a specific score file
@@ -40,5 +42,7 @@ func FromJSON(path string) (*Score, error) {
 	if err != nil {
 		return nil, err
 	}
+	s.LastModified = helpers.LastModified(s.Path)
+
 	return &s, nil
 }