apply the mtime given by the gopro to the written files (#126)

This allows applications like Google Photos to have the actual timestamp
available, when the file was written, instead of reading the timestamp
when the files were downloaded from the camera.

Author: klaernie

pkg/gopro/connect.go

@@ -234,7 +234,7 @@ func ImportConnect(params utils.ImportParams) (*utils.Result, error) {
 				switch fileTypeMatch.Type {
 				case Video, ChapteredVideo:
 
-					go func(in, folder, origFilename, unsorted string, origSize int64, lrvSize int, bar *mpb.Bar) {
+					go func(in, folder, origFilename, unsorted string, origSize int64, lrvSize int, bar *mpb.Bar, mtime time.Time) {
 						defer wg.Done()
 						x := origFilename
 						filename := origFilename
@@ -249,7 +249,8 @@ func ImportConnect(params utils.ImportParams) (*utils.Result, error) {
 						err := utils.DownloadFile(
 							filepath.Join(unsorted, origFilename),
 							fmt.Sprintf("http://%s:8080/videos/DCIM/%s/%s", in, folder, origFilename),
-							bar)
+							bar,
+							&mtime)
 						if err != nil {
 							bar.EwmaSetCurrent(origSize, 1*time.Millisecond)
 							bar.EwmaIncrInt64(origSize, 1*time.Millisecond)
@@ -304,7 +305,8 @@ func ImportConnect(params utils.ImportParams) (*utils.Result, error) {
 							err := utils.DownloadFile(
 								filepath.Join(unsorted, proxyVideoName),
 								fmt.Sprintf("http://%s:8080/videos/DCIM/%s/%s", in, folder, proxyVideoName),
-								proxyVideoBar)
+								proxyVideoBar,
+								&mtime)
 							if err != nil {
 								proxyVideoBar.EwmaSetCurrent(int64(lrvSize), 1*time.Millisecond)
 								proxyVideoBar.EwmaIncrInt64(int64(lrvSize), 1*time.Millisecond)
@@ -323,7 +325,7 @@ func ImportConnect(params utils.ImportParams) (*utils.Result, error) {
 							}
 							inlineCounter.SetSuccess()
 						}
-					}(params.Input, folder.D, goprofile.N, unsorted, goprofile.S, goprofile.Glrv, bar)
+					}(params.Input, folder.D, goprofile.N, unsorted, goprofile.S, goprofile.Glrv, bar, tm)
 
 				case Photo:
 					type photo struct {
@@ -363,13 +365,14 @@ func ImportConnect(params utils.ImportParams) (*utils.Result, error) {
 					}
 
 					for _, item := range totalPhotos {
-						go func(in string, nowPhoto photo, unsorted string) {
+						go func(in string, nowPhoto photo, unsorted string, mtime time.Time) {
 							defer wg.Done()
 
 							err := utils.DownloadFile(
 								filepath.Join(unsorted, nowPhoto.Name),
 								fmt.Sprintf("http://%s:8080/videos/DCIM/%s/%s", in, nowPhoto.Folder, nowPhoto.Name),
 								nowPhoto.Bar,
+								&mtime,
 							)
 							if err != nil {
 								nowPhoto.Bar.EwmaSetCurrent(int64(nowPhoto.Size), 1*time.Millisecond)
@@ -396,7 +399,7 @@ func ImportConnect(params utils.ImportParams) (*utils.Result, error) {
 									return
 								}
 							}
-						}(params.Input, item, unsorted)
+						}(params.Input, item, unsorted, tm)
 					}
 
 				case Multishot:
@@ -415,13 +418,14 @@ func ImportConnect(params utils.ImportParams) (*utils.Result, error) {
 						}
 						multiShotBar := utils.GetNewBar(progressBar, gpFileInfo.S, filename, utils.IoTX)
 
-						go func(in, folder, origFilename, unsorted string, origSize int64) {
+						go func(in, folder, origFilename, unsorted string, origSize int64, mtime time.Time) {
 							defer wg.Done()
 
 							err := utils.DownloadFile(
 								filepath.Join(unsorted, origFilename),
 								fmt.Sprintf("http://%s:8080/videos/DCIM/%s/%s", in, folder, origFilename),
 								multiShotBar,
+								&mtime,
 							)
 							if err != nil {
 								bar.EwmaSetCurrent(origSize, 1*time.Millisecond)
@@ -442,7 +446,7 @@ func ImportConnect(params utils.ImportParams) (*utils.Result, error) {
 									return
 								}
 							}
-						}(params.Input, folder.D, filename, unsorted, gpFileInfo.S)
+						}(params.Input, folder.D, filename, unsorted, gpFileInfo.S, tm)
 					}
 
 				default:

pkg/gopro/update.go

@@ -57,7 +57,7 @@ func UpdateCamera(sdcard string) error {
 			color.Yellow(">> Firmware release date: %s", camera.ReleaseDate)
 			color.Yellow(html2text.HTML2Text(camera.ReleaseHTML))
 
-			err = utils.DownloadFile(filepath.Join(sdcard, "UPDATE.zip"), camera.URL, nil)
+			err = utils.DownloadFile(filepath.Join(sdcard, "UPDATE.zip"), camera.URL, nil, nil)
 			if err != nil {
 				return err
 			}

pkg/insta360/update.go

@@ -42,7 +42,7 @@ func UpdateCamera(sdcard string, model string) error {
 				color.White(html2text.HTML2Text(item.Description))
 
 				fwURL := item.Channels[0].DownloadURL
-				err = utils.DownloadFile(filepath.Join(sdcard, strings.Split(fwURL, "/")[len(strings.Split(fwURL, "/"))-1]), fwURL, nil)
+				err = utils.DownloadFile(filepath.Join(sdcard, strings.Split(fwURL, "/")[len(strings.Split(fwURL, "/"))-1]), fwURL, nil, nil)
 				if err != nil {
 					return err
 				}

pkg/utils/cameras.go

@@ -172,7 +172,7 @@ func (wc WriteCounter) PrintProgress() {
 	fmt.Printf("\rDownloading... %s complete", humanize.Bytes(wc.Total))
 }
 
-func DownloadFile(filepath string, url string, progressbar *mpb.Bar) error {
+func DownloadFile(filepath string, url string, progressbar *mpb.Bar, mtime *time.Time) error {
 	// Create the file, but give it a tmp file extension, this means we won't overwrite a
 	// file until it's downloaded, but we'll remove the tmp extension once downloaded.
 	out, err := os.Create(filepath + ".tmp")
@@ -209,6 +209,13 @@ func DownloadFile(filepath string, url string, progressbar *mpb.Bar) error {
 	// Close the file without defer so it can happen before Rename()
 	out.Close()
 
+	if mtime != nil {
+		// set file mtime to what was given to us
+		if err := os.Chtimes(filepath+".tmp", time.Time{}, *mtime); err != nil {
+			return err
+		}
+	}
+
 	return os.Rename(filepath+".tmp", filepath)
 }