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read_later.go
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read_later.go
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/*
* Copyright (c) 2013-2021 Utkan Güngördü <[email protected]>
* Copyright (c) 2021-2024 Piotr Grabowski
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package gomicsv
import (
"fmt"
"log"
"os"
"path/filepath"
"strings"
"github.com/fauu/gomicsv/archive"
)
func (app *App) maybeSaveReadingPosition() {
var http = app.S.Archive.Kind() == archive.HTTPKind
if (!http && !app.Config.RememberPosition) ||
(http && !app.Config.RememberPositionHTTP) {
return
}
readLaterFilePath := app.readLaterFilePath(app.S.ArchivePath)
f, err := os.Create(readLaterFilePath)
if err != nil {
log.Printf("Error creating read later file '%s': %v", readLaterFilePath, err)
return
}
defer f.Close()
fmt.Fprintf(f, "archive-pos=%d", app.S.ArchivePos)
}
func (app *App) loadReadingPosition(archivePath string) (int, error) {
readLaterFilePath := app.readLaterFilePath(archivePath)
f, err := os.Open(readLaterFilePath)
if err != nil {
return 0, fmt.Errorf("opening read later file '%s': %v", readLaterFilePath, err)
}
defer f.Close()
var archivePos int
_, err = fmt.Fscanf(f, "archive-pos=%d", &archivePos)
if err != nil {
return 0, fmt.Errorf("reading 'archive-pos' from read later file '%s': %v", readLaterFilePath, err)
}
return archivePos, nil
}
func (app *App) readLaterFilePath(archivePath string) string {
filename := strings.ToUpper(md5String(archivePath))
return filepath.Join(app.S.ReadLaterDirPath, filename)
}