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Prepare using a context for export / import

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This will allow cancelling the export if the import fails
before the export finished.

For now the context isn't passed on to the actual export functions,
hence there is not yet any cancellation happening.
This commit is contained in:
Philipp Wolfer 2025-05-22 08:48:37 +02:00
parent 536fae6a46
commit 3b545a0fd6
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GPG key ID: 8FDF744D4919943B
3 changed files with 37 additions and 16 deletions
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11
internal/cli/transfer.go
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@ -16,6 +16,7 @@ Scotty. If not, see <https://www.gnu.org/licenses/>.
package cli
import (
"context"
"errors"
"fmt"
"strconv"
@ -113,16 +114,22 @@ func (c *TransferCmd[E, I, R]) Transfer(exp backends.ExportProcessor[R], imp bac
progressChan := make(chan models.TransferProgress)
progress := setupProgressBars(progressChan)
ctx, cancel := context.WithCancel(context.Background())
wg := &sync.WaitGroup{}
// Export from source
exportChan := make(chan R, 1000)
go exp.Process(wg, timestamp, exportChan, progressChan)
go exp.Process(ctx, wg, timestamp, exportChan, progressChan)
// Import into target
resultChan := make(chan models.ImportResult)
go imp.Process(wg, exportChan, resultChan, progressChan)
go imp.Process(ctx, wg, exportChan, resultChan, progressChan)
result := <-resultChan
// Once import is done, the context can be cancelled
cancel()
// Wait for all goroutines to finish
wg.Wait()
progress.close()