func FilterFiles(files, increments []os.FileInfo, times []string, t time.Time, workingdir string) ([]string, error) {
resultset := make([]string, 0)
metafiles := make([]string, 0, len(files))
for _, e := range increments {
if e.IsDir() {
continue
}
if filepath.Ext(utils.TrimExt(e.Name())) != ".snapshot" && filepath.Ext(e.Name()) != ".missing" {
continue
}
unquote, err := utils.Unquote(e.Name())
if err != nil {
return nil, err
}
metafiles = append(metafiles, unquote)
}
for i, _ := range files {
if files[i].IsDir() {
continue
}
break_ := false
for _, e := range times {
unquoted, err := utils.Unquote(e)
if err != nil {
return nil, err
}
parsedtime, err := time.Parse(types.TIMESTAMP_FMT, unquoted)
if err != nil {
return nil, fmt.Errorf("unable to parse time", e, err)
}
// t >= parsedtime
if t.After(parsedtime) {
if !utils.StringInSlice(files[i].Name()+"."+unquoted+".snapshot.gz", metafiles) {
continue
}
// file was deleted in the past, dont add it to the resultset
break_ = true
break
}
if t.Before(parsedtime) || t.Equal(parsedtime) {
if !utils.StringInSlice(files[i].Name()+"."+unquoted+".missing", metafiles) {
continue
}
// file was created in the future, dont add it to the resultset
break_ = true
break
}
}
if break_ {
continue
}
resultset = append(resultset, files[i].Name())
}
return resultset, nil
}
func Files(me *utils.Repository, path string, t time.Time) ([]string, error) {
workingdir := filepath.Join(me.BasePath, types.DATA, types.INCREMENTS, path)
times, err := me.TimeStamps()
if err != nil {
return nil, fmt.Errorf("Unable to retrieve timestamps", types.DATA, err)
}
_, err = os.Stat(filepath.Join(me.BasePath, path))
files := []os.FileInfo{}
if err == nil {
files, err = ioutil.ReadDir(filepath.Join(me.BasePath, path))
if err != nil {
return nil, fmt.Errorf("unable to parse directory", filepath.Join(me.BasePath, path), err)
}
}
increments, err := ioutil.ReadDir(filepath.Join(me.BasePath, types.DATA, types.INCREMENTS, path))
if err != nil {
return nil, fmt.Errorf("unable to parse directory", filepath.Join(me.BasePath, types.DATA, types.INCREMENTS, path), err)
}
resultsetphy, err := FilterFiles(files, increments, times, t, workingdir)
if err != nil {
return nil, err
}
// deleted files are not to be found in the physical representation of files
var filesinc []os.FileInfo
for i, _ := range increments {
if increments[i].IsDir() {
continue
}
if filepath.Ext(utils.TrimExt(increments[i].Name())) != ".snapshot" {
continue
}
needle := utils.TrimExt(utils.TrimExt(utils.TrimExt(increments[i].Name())))
d, err := os.Stat(filepath.Join(me.BasePath, types.DATA, types.INCREMENTS, path, needle))
if err == nil && d.IsDir() {
// points to a directory, ignore this file
continue
} else if err != nil && !os.IsNotExist(err) {
// real error case
return nil, fmt.Errorf("unable to stat file", needle, err)
}
// check if resultphy already contains this file
flag := false
for _, e := range resultsetphy {
if e == needle {
flag = true
break
}
}
if !flag {
filesinc = append(filesinc, &types.RdiffFileInfo{Name_: needle, IsDir_: false})
}
}
resultsetinc, err := FilterFiles(filesinc, increments, times, t, workingdir)
if err != nil {
return nil, err
}
resultset := make([]string, len(resultsetphy)+len(resultsetinc))
copy(resultset, resultsetphy)
copy(resultset[len(resultsetphy):], resultsetinc)
return resultset, nil
}
