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feat: add flag to disable shell mode for nest start --watch #2522

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feat: add flag to disable shell mode for nest start --watch #2522

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11 changes: 9 additions & 2 deletions actions/start.action.ts
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Expand Up @@ -72,12 +72,15 @@ export class StartAction extends BuildAction {
commandOptions,
defaultConfiguration.sourceRoot,
);
const noShellOption = commandOptions.find((option) => option.name === 'noShell')
const useShell = noShellOption ? !noShellOption.value : true;
const onSuccess = this.createOnSuccessHook(
entryFile,
sourceRoot,
debugFlag,
outDir,
binaryToRun,
useShell,
);

await this.runBuild(
Expand All @@ -103,6 +106,7 @@ export class StartAction extends BuildAction {
debugFlag: boolean | string | undefined,
outDirName: string,
binaryToRun: string,
useShell: boolean,
) {
let childProcessRef: any;
process.on(
Expand All @@ -120,6 +124,7 @@ export class StartAction extends BuildAction {
debugFlag,
outDirName,
binaryToRun,
useShell,
);
childProcessRef.on('exit', () => (childProcessRef = undefined));
});
Expand All @@ -133,6 +138,7 @@ export class StartAction extends BuildAction {
debugFlag,
outDirName,
binaryToRun,
useShell,
);
childProcessRef.on('exit', (code: number) => {
process.exitCode = code;
Expand All @@ -148,6 +154,7 @@ export class StartAction extends BuildAction {
debug: boolean | string | undefined,
outDirName: string,
binaryToRun: string,
useShell: boolean,
) {
let outputFilePath = join(outDirName, sourceRoot, entryFile);
if (!fs.existsSync(outputFilePath + '.js')) {
Expand Down Expand Up @@ -177,11 +184,11 @@ export class StartAction extends BuildAction {
}
const sourceMapsRegisterPath = this.getSourceMapSupportPkg();
if (sourceMapsRegisterPath !== undefined) {
processArgs.unshift(`-r "${sourceMapsRegisterPath}"`);
processArgs.unshift('-r', `"${sourceMapsRegisterPath}"`);
}
return spawn(binaryToRun, processArgs, {
stdio: 'inherit',
shell: true,
shell: useShell,
});
}

Expand Down
5 changes: 5 additions & 0 deletions commands/start.command.ts
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Expand Up @@ -38,6 +38,7 @@ export class StartCommand extends AbstractCommand {
'--preserveWatchOutput',
'Use "preserveWatchOutput" option when using tsc watch mode.',
)
.option('--noShell', 'Spawn child processes without shell (see node\'s child_process.spawn() method docs)')
.description('Run Nest application.')
.action(async (app: string, command: Command) => {
const options: Input[] = [];
Expand Down Expand Up @@ -79,6 +80,10 @@ export class StartCommand extends AbstractCommand {
!!command.watch &&
!isWebpackEnabled,
});
options.push({
name: 'noShell',
value: !!command.noShell,
})

const availableBuilders = ['tsc', 'webpack', 'swc'];
if (command.builder && !availableBuilders.includes(command.builder)) {
Expand Down