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Truncate file used by the sw-file-digester.js after processing

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schlagmichdoch 2024-02-09 03:34:07 +01:00
parent 7c6062e1e0
commit 65936a4d7d
2 changed files with 41 additions and 6 deletions
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24
public/scripts/sw-file-digester.js
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@ -7,6 +7,9 @@ self.addEventListener('message', async e => {
case "get-file":
await this.onGetFile(e.data.name);
break;
case "delete-file":
await this.onDeleteFile(e.data.name);
break;
}
}
catch (e) {
@ -32,7 +35,9 @@ async function onPart(fileName, buffer, offset) {
// Write the message to the end of the file.
let encodedMessage = new DataView(buffer);
accessHandle.write(encodedMessage, { at: offset });
accessHandle.close();
// Always close FileSystemSyncAccessHandle if done.
accessHandle.close(); accessHandle.close();
self.postMessage({type: "part", part: encodedMessage});
encodedMessage = null;
@ -43,6 +48,19 @@ async function onGetFile(fileName) {
let file = await fileHandle.getFile();
self.postMessage({type: "file", file: file});
file = null;
// Todo: delete file from storage
}
async function onDeleteFile(fileName) {
const accessHandle = await getAccessHandle(fileName);
// Truncate the file to 0 bytes
accessHandle.truncate(0);
// Persist changes to disk.
accessHandle.flush();
// Always close FileSystemSyncAccessHandle if done.
accessHandle.close();
self.postMessage({type: "file-deleted"});
}