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🐎 Offload file extraction to patch-installer instead of piping it back

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This commit is contained in:
C-3PO 2018-09-16 02:57:25 +02:00
parent f074739579
commit 6500b7a8c7
Signed by: c3po
GPG key ID: 62993C4BB4D86F24
2 changed files with 13 additions and 10 deletions
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10
src/ssn/getPatch.ts
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@ -85,12 +85,9 @@ export default async function getPatch({ product, from, to, sourceDirectory, tar
const outputName = path.join(targetDir, file.name);
const outputNameTemp = path.join(targetDir, `${file.name}.tmp`);
await createDirRecursively(path.dirname(outputNameTemp));
const outputStream = fs.createWriteStream(outputNameTemp);
//start installation
await launch(diskFilenames[file.diskNumberStart], file.offset, file.compressedSize, file.decryptionKeys, undefined, outputStream);
outputStream.close();
await launch(diskFilenames[file.diskNumberStart], file.offset, file.compressedSize, file.decryptionKeys, undefined, outputNameTemp);
fs.rename(outputNameTemp, outputName, (renameError) => {
if (renameError) {
@ -108,12 +105,11 @@ export default async function getPatch({ product, from, to, sourceDirectory, tar
const outputName = path.join(targetDir, file.name);
const outputNameTemp = path.join(targetDir, `${file.name}.tmp`);
//create file write stream
//create directory where file is
await createDirRecursively(path.dirname(outputNameTemp));
const outputStream = fs.createWriteStream(outputNameTemp);
//start installation
await launch(diskFilenames[file.diskNumberStart], file.offset, file.compressedSize, file.decryptionKeys, sourceFile, outputStream);
await launch(diskFilenames[file.diskNumberStart], file.offset, file.compressedSize, file.decryptionKeys, sourceFile, outputNameTemp);
//clean up: delete source file if necessary, and remove .tmp file extension
if (sourceDir === targetDir) {

13
src/ssn/installation/launch.ts
View file

@ -10,7 +10,7 @@ export default function launchProcess(
compressedSize: number,
decryptionKeys: [number, number, number] | undefined,
previousFile: string | undefined,
outputStream: fs.WriteStream,
output: string | fs.WriteStream,
) {
return new Promise((resolve, reject) => {
const parameters = [
@ -24,11 +24,18 @@ export default function launchProcess(
if (previousFile !== undefined) {
parameters.push('--previous', previousFile);
}
if (typeof output === 'string') {
parameters.push('--target', output);
}
const spawnedProcess = childProcess.spawn(processPath, parameters.map((value) => value.toString(), { cwd: '.' }));
spawnedProcess.stdout.pipe(outputStream);
spawnedProcess.stdout.on('end', resolve);
if (typeof output === 'string') {
//TODO: output stdout to console just in case for error logging
} else {
spawnedProcess.stdout.pipe(output);
spawnedProcess.stdout.on('end', resolve);
}
spawnedProcess.stderr.setEncoding('utf8');
spawnedProcess.stderr.on('data', (error) => {