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Add support for picasa ini files for metadata #430
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| package picasa | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "errors" | ||
| "github.com/spf13/afero" | ||
| "log/slog" | ||
| "os" | ||
| "path" | ||
| "path/filepath" | ||
| "strings" | ||
| ) | ||
|
|
||
| type DirectoryData struct { | ||
| Name string | ||
| Description string | ||
| Location string | ||
| Files map[string]FileData | ||
| Albums map[string]AlbumData | ||
| } | ||
| type AlbumData struct { | ||
| Name string | ||
| Description string | ||
| Location string | ||
| } | ||
| type FileData struct { | ||
| IsStar bool | ||
| Caption string | ||
| Albums []string | ||
| } | ||
|
|
||
| var appFS = afero.NewOsFs() | ||
|
|
||
| var DirectoryCache = map[string]DirectoryData{} | ||
|
|
||
| func CacheDirectory(dir string) { | ||
| DirectoryCache[dir] = ParseDirectory(dir) | ||
| } | ||
|
|
||
| func HasPicasa(dir string) bool { | ||
| fileName := path.Join(dir, ".picasa.ini") | ||
| if _, err := os.Stat(fileName); errors.Is(err, os.ErrNotExist) { | ||
| return false | ||
| } | ||
|
|
||
| return true | ||
| } | ||
|
|
||
| func ParseDirectory(dir string) DirectoryData { | ||
| directoryData := DirectoryData{ | ||
| Files: map[string]FileData{}, | ||
| Albums: map[string]AlbumData{}, | ||
| } | ||
|
|
||
| iniMap := parseFile(filepath.Join(dir, ".picasa.ini")) | ||
| for sectionName, pairs := range iniMap { | ||
| if sectionName == "Picasa" { | ||
| if value, ok := pairs["name"]; ok { | ||
| directoryData.Name = value | ||
| } | ||
| if value, ok := pairs["description"]; ok { | ||
| directoryData.Description = value | ||
| } | ||
| if value, ok := pairs["location"]; ok { | ||
| directoryData.Location = value | ||
| } | ||
| } else if strings.HasPrefix(sectionName, ".album:") { | ||
| albumData := AlbumData{} | ||
| token := sectionName[7:] | ||
| if value, ok := pairs["name"]; ok { | ||
| albumData.Name = value | ||
| } | ||
| if value, ok := pairs["description"]; ok { | ||
| albumData.Description = value | ||
| } | ||
| if value, ok := pairs["location"]; ok { | ||
| albumData.Location = value | ||
| } | ||
| directoryData.Albums[token] = albumData | ||
| } else { | ||
| fileData := FileData{} | ||
| if value, ok := pairs["star"]; ok { | ||
| fileData.IsStar = value == "yes" | ||
| } | ||
| if value, ok := pairs["caption"]; ok { | ||
| fileData.Caption = value | ||
| } | ||
| if value, ok := pairs["albums"]; ok { | ||
| fileData.Albums = strings.Split(value, ",") | ||
| } | ||
| directoryData.Files[sectionName] = fileData | ||
| } | ||
| } | ||
|
|
||
| return directoryData | ||
| } | ||
|
|
||
| func parseFile(path string) (result map[string]map[string]string) { | ||
| readFile, err := appFS.Open(path) | ||
| if err != nil { | ||
| slog.Error("could not open file", err) | ||
| return | ||
| } | ||
| defer func() { | ||
| err = readFile.Close() | ||
| if err != nil { | ||
| slog.Error("could not close file", err) | ||
| } | ||
| }() | ||
|
|
||
| fileScanner := bufio.NewScanner(readFile) | ||
| return parseScanner(fileScanner) | ||
| } | ||
|
|
||
| func parseScanner(fileScanner *bufio.Scanner) map[string]map[string]string { | ||
| result := map[string]map[string]string{} | ||
| fileScanner.Split(bufio.ScanLines) | ||
|
|
||
| section := "" | ||
| for fileScanner.Scan() { | ||
| line := fileScanner.Text() | ||
|
|
||
| if len(line) == 0 { | ||
| continue | ||
| } | ||
|
|
||
| if line[0:1] == "[" { | ||
| end := strings.Index(line, "]") | ||
| section = line[1:end] | ||
| if _, ok := result[section]; !ok { | ||
| result[section] = map[string]string{} | ||
| } else { | ||
| panic("unexpected duplicate picasa.ini section. malformed .picasa.ini file?") | ||
| } | ||
|
|
||
| } | ||
| if section != "" { | ||
| if eqPos := strings.Index(line, "="); eqPos > 0 { | ||
| key := line[0:eqPos] | ||
| value := line[eqPos+1:] | ||
| result[section][key] = value | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return result | ||
| } | ||
|
|
||
| func (p DirectoryData) DescriptionAndLocation() string { | ||
| result := p.Description | ||
| if strings.TrimSpace(p.Location) != "" { | ||
| result += " Location: " + strings.TrimSpace(p.Location) | ||
| } | ||
| return result | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| package picasa | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "fmt" | ||
| "github.com/psanford/memfs" | ||
| "github.com/spf13/afero" | ||
| "reflect" | ||
| "strings" | ||
| "testing" | ||
| ) | ||
|
|
||
| type inMemFS struct { | ||
| *memfs.FS | ||
| err error | ||
| } | ||
|
|
||
| func newInMemFS() *inMemFS { | ||
| return &inMemFS{ | ||
| FS: memfs.New(), | ||
| } | ||
| } | ||
|
|
||
| func Test2(t *testing.T) { | ||
| expected := DirectoryData{ | ||
| Name: "A Name", | ||
| Description: "A Description", | ||
| Location: "A Location", | ||
| Files: map[string]FileData{ | ||
| "file-name-1.jpg": {}, | ||
| "file-name-2.jpg": { | ||
| IsStar: true, | ||
| Caption: "A Caption", | ||
| }, | ||
| }, | ||
| Albums: map[string]AlbumData{}, | ||
| } | ||
|
|
||
| sample := ` | ||
| [Picasa] | ||
| name=A Name | ||
| description=A Description | ||
| location=A Location | ||
|
|
||
| [file-name-1.jpg] | ||
| some_other_key=some value | ||
|
|
||
| [file-name-2.jpg] | ||
| star=yes | ||
| caption=A Caption | ||
| ` | ||
|
|
||
| appFS = afero.NewMemMapFs() | ||
| // create test files and directories | ||
| appFS.MkdirAll("sample", 0o755) | ||
| afero.WriteFile(appFS, "sample/.picasa.ini", []byte(sample), 0o644) | ||
|
|
||
| actual := ParseDirectory("sample") | ||
|
|
||
| if !reflect.DeepEqual(expected, actual) { | ||
| fmt.Printf("%+v\n", expected) | ||
| fmt.Printf("%+v\n", actual) | ||
| t.Error("ParseDirectory did not yield expected results") | ||
| } | ||
| } | ||
|
|
||
| func TestReadLines(t *testing.T) { | ||
| sample := ` | ||
| [Picasa] | ||
| key1=value1 | ||
| key2=value2 | ||
|
|
||
| [file-name.jpg] | ||
| key3=value3 | ||
| key4=value4 | ||
| ` | ||
| buf := strings.NewReader(sample) | ||
| s := bufio.NewScanner(buf) | ||
|
|
||
| actual := parseScanner(s) | ||
| expected := map[string]map[string]string{ | ||
| "Picasa": { | ||
| "key1": "value1", | ||
| "key2": "value2", | ||
| }, | ||
| "file-name.jpg": { | ||
| "key3": "value3", | ||
| "key4": "value4", | ||
| }, | ||
| } | ||
|
|
||
| if !reflect.DeepEqual(actual, expected) { | ||
| t.Error("parsed ini did not match expected") | ||
| } | ||
| } |
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Need to figure this out.