child_process.spawnSync() not return anything.

[netcore-jroger]

• Version: 6.11.0 or 6.11.1
• Platform: Win10 Pro latest stable
• Subsystem:

In my company's computer：

let result = childProcess.spawnSync('D:/Program Files/nodejs/node.exe', ['--version']);

work very well, can get return value.
but

let result = childProcess.spawnSync('node', ['--version']);

not work and the code behind it will not execute.

I use myself computer：

let result = childProcess.spawnSync('node', ['--version']);

was work very well.

I have added D:\Program Files\nodejs\ to the environment variable.

This problem caused my vscode editor to not work properly. see#45048199

[vsemozhetbyt]

Can you provide the output of the childProcess.spawnSync('node', ['--version']); where this does not work?

[netcore-jroger]

@vsemozhetbyt

childProcess.spawnSync('node', ['--version']);

not return anything.
I just found that the shell: true can run properly.

    let result = childProcess.spawnSync('node', ['--version'], {
        shell: true
    });

    console.log(result);

work very well. but shell default value is false. Can I change the default value in global?

[gibfahn]

@netcore-jroger I suggest you use execSync, which actually spawns a shell to run the command in.

[gibfahn]

But spawnSync returns things for me: I'm not on Windows, sorry.

Works for me:

➜  ~ ❯ node                                                                                                                                                                                               ~
> require('child_process').spawnSync('node', ['--version']);
{ status: 0,
  signal: null,
  output: [ null, <Buffer 76 39 2e 30 2e 30 2d 70 72 65 0a>, <Buffer > ],
  pid: 10931,
  stdout: <Buffer 76 39 2e 30 2e 30 2d 70 72 65 0a>,
  stderr: <Buffer > }

[netcore-jroger]

[netcore-jroger]

C:\Users\JRoger> node
> require('child_process').spawnSync('node', ['--version'], {shell: true});

Output:

{ status: 0,
  signal: null,
  output: [ null, <Buffer 76 36 2e 31 31 2e 31 0d 0a>, <Buffer > ],
  pid: 38208,
  stdout: <Buffer 76 36 2e 31 31 2e 31 0d 0a>,
  stderr: <Buffer >,
  envPairs:
   [ 'ALLUSERSPROFILE=C:\\ProgramData',
     'APPDATA=C:\\Users\\JRoger\\AppData\\Roaming',
     'ChocolateyInstall=C:\\ProgramData\\chocolatey',
     'ChocolateyLastPathUpdate=周四 5月 18 17:32:23 2017',
     'CLASSPATH=.;C:\\Program Files\\Java\\jdk1.8.0_131\\lib\\dt.jar;C:\\Program Files\\Java\\jdk1.8.0_131\\lib\\tools.j
ar;',
     'CommonProgramFiles=C:\\Program Files\\Common Files',
     'CommonProgramFiles(x86)=C:\\Program Files (x86)\\Common Files',
     'CommonProgramW6432=C:\\Program Files\\Common Files',
     'COMPUTERNAME=JROGER-PC',
     'ComSpec=C:\\Windows\\system32\\cmd.exe',
     'FSHARPINSTALLDIR=C:\\Program Files (x86)\\Microsoft SDKs\\F#\\4.1\\Framework\\v4.0\\',
     'HOME=C:\\Users\\JRoger',
     'HOMEDRIVE=C:',
     'HOMEPATH=\\Users\\JRoger',
     'JAVA_HOME=C:\\Program Files\\Java\\jdk1.8.0_131',
     'LOCALAPPDATA=C:\\Users\\JRoger\\AppData\\Local',
     'LOGONSERVER=\\\\JROGER-PC',
     'NUMBER_OF_PROCESSORS=8',
     'OneDrive=D:\\Users\\JRoger\\OneDrive',
     'OS=Windows_NT',
     'Path=C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Win
dows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Microsoft SQL Server\\Client SDK\\ODBC\\130\\Tools\\B
inn\\;C:\\Program Files (x86)\\Microsoft SQL Server\\130\\Tools\\Binn\\;C:\\Program Files (x86)\\Microsoft SQL Server\\1
30\\DTS\\Binn\\;C:\\Program Files (x86)\\Microsoft SQL Server\\130\\Tools\\Binn\\ManagementStudio\\;C:\\Program Files\\M
icrosoft SQL Server\\120\\Tools\\Binn\\;C:\\Program Files\\Microsoft SQL Server\\130\\Tools\\Binn\\;C:\\Program Files\\M
icrosoft\\Web Platform Installer\\;C:\\Program Files (x86)\\Microsoft SQL Server\\110\\DTS\\Binn\\;C:\\Program Files (x8
6)\\Microsoft SQL Server\\120\\DTS\\Binn\\;D:\\Program Files\\Python27;C:\\Program Files\\dotnet\\;D:\\Program Files\\ap
ache-maven-3.5.0\\bin;"C:\\Program Files\\Java\\jdk1.8.0_131\\bin;";"C:\\Program Files\\Java\\jdk1.8.0_131\\jre\\bin;";C
:\\ProgramData\\chocolatey\\bin;D:\\Program Files (x86)\\LINQPad5;C:\\Program Files (x86)\\Microsoft Visual Studio\\2017
\\Enterprise\\MSBuild\\15.0\\Bin\\amd64;C:\\Users\\JRoger\\AppData\\Roaming\\npm;D:\\Program Files\\Git\\cmd;C:\\Program
 Files (x86)\\Microsoft VS Code\\bin;D:\\Program Files\\nodejs;D:\\Program Files\\nodejs\\;C:\\Users\\JRoger\\AppData\\L
ocal\\Microsoft\\WindowsApps;D:\\Program Files\\Python27;D:\\Program Files\\apache-maven-3.5.0\\bin;"C:\\Program Files\\
Java\\jdk1.8.0_131\\bin;";"C:\\Program Files\\Java\\jdk1.8.0_131\\jre\\bin;";C:\\Program Files (x86)\\Microsoft Visual S
tudio\\2017\\Enterprise\\MSBuild\\15.0\\Bin\\amd64;D:\\Program Files (x86)\\Microsoft VS Code\\bin;D:\\Program Files\\no
dejs;C:\\Users\\JRoger\\AppData\\Roaming\\npm',
     'PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.CPL',
     'PROCESSOR_ARCHITECTURE=AMD64',
     'PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 94 Stepping 3, GenuineIntel',
     'PROCESSOR_LEVEL=6',
     'PROCESSOR_REVISION=5e03',
     'ProgramData=C:\\ProgramData',
     'ProgramFiles=C:\\Program Files',
     'ProgramFiles(x86)=C:\\Program Files (x86)',
     'ProgramW6432=C:\\Program Files',
     'PSModulePath=D:\\Users\\JRoger\\Documents\\WindowsPowerShell\\Modules;C:\\Program Files\\WindowsPowerShell\\Module
s;C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules;C:\\Program Files (x86)\\Microsoft SQL Server\\130\\Tools\\Pow
erShell\\Modules\\;C:\\Program Files\\WindowsPowerShell\\Modules\\;C:\\Program Files (x86)\\Microsoft SDKs\\Azure\\Power
Shell\\ResourceManager\\AzureResourceManager\\;C:\\Program Files (x86)\\Microsoft SDKs\\Azure\\PowerShell\\ServiceManage
ment\\;C:\\Program Files (x86)\\Microsoft SDKs\\Azure\\PowerShell\\Storage\\',
     'PUBLIC=C:\\Users\\Public',
     'SESSIONNAME=Console',
     'SystemDrive=C:',
     'SystemRoot=C:\\Windows',
     'TEMP=C:\\Users\\JRoger\\AppData\\Local\\Temp',
     'TMP=C:\\Users\\JRoger\\AppData\\Local\\Temp',
     'USERDOMAIN=JROGER-PC',
     'USERDOMAIN_ROAMINGPROFILE=JROGER-PC',
     'USERNAME=JRoger',
     'USERPROFILE=C:\\Users\\JRoger',
     'VBOX_MSI_INSTALL_PATH=D:\\Program Files\\Oracle\\VirtualBox\\',
     'VS140COMNTOOLS=C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\Common7\\Tools\\',
     'VSSDK140Install=C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VSSDK\\',
     'windir=C:\\Windows' ],
  options:
   { shell: true,
     windowsVerbatimArguments: true,
     file: 'C:\\Windows\\system32\\cmd.exe',
     args:
      [ 'C:\\Windows\\system32\\cmd.exe',
        '/s',
        '/c',
        '"node --version"' ],
     envPairs:
      [ 'ALLUSERSPROFILE=C:\\ProgramData',
        'APPDATA=C:\\Users\\JRoger\\AppData\\Roaming',
        'ChocolateyInstall=C:\\ProgramData\\chocolatey',
        'ChocolateyLastPathUpdate=周四 5月 18 17:32:23 2017',
        'CLASSPATH=.;C:\\Program Files\\Java\\jdk1.8.0_131\\lib\\dt.jar;C:\\Program Files\\Java\\jdk1.8.0_131\\lib\\tool
s.jar;',
        'CommonProgramFiles=C:\\Program Files\\Common Files',
        'CommonProgramFiles(x86)=C:\\Program Files (x86)\\Common Files',
        'CommonProgramW6432=C:\\Program Files\\Common Files',
        'COMPUTERNAME=JROGER-PC',
        'ComSpec=C:\\Windows\\system32\\cmd.exe',
        'FSHARPINSTALLDIR=C:\\Program Files (x86)\\Microsoft SDKs\\F#\\4.1\\Framework\\v4.0\\',
        'HOME=C:\\Users\\JRoger',
        'HOMEDRIVE=C:',
        'HOMEPATH=\\Users\\JRoger',
        'JAVA_HOME=C:\\Program Files\\Java\\jdk1.8.0_131',
        'LOCALAPPDATA=C:\\Users\\JRoger\\AppData\\Local',
        'LOGONSERVER=\\\\JROGER-PC',
        'NUMBER_OF_PROCESSORS=8',
        'OneDrive=D:\\Users\\JRoger\\OneDrive',
        'OS=Windows_NT',
        'Path=C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\
Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Microsoft SQL Server\\Client SDK\\ODBC\\130\\Tools
\\Binn\\;C:\\Program Files (x86)\\Microsoft SQL Server\\130\\Tools\\Binn\\;C:\\Program Files (x86)\\Microsoft SQL Server
\\130\\DTS\\Binn\\;C:\\Program Files (x86)\\Microsoft SQL Server\\130\\Tools\\Binn\\ManagementStudio\\;C:\\Program Files
\\Microsoft SQL Server\\120\\Tools\\Binn\\;C:\\Program Files\\Microsoft SQL Server\\130\\Tools\\Binn\\;C:\\Program Files
\\Microsoft\\Web Platform Installer\\;C:\\Program Files (x86)\\Microsoft SQL Server\\110\\DTS\\Binn\\;C:\\Program Files
(x86)\\Microsoft SQL Server\\120\\DTS\\Binn\\;D:\\Program Files\\Python27;C:\\Program Files\\dotnet\\;D:\\Program Files\
\apache-maven-3.5.0\\bin;"C:\\Program Files\\Java\\jdk1.8.0_131\\bin;";"C:\\Program Files\\Java\\jdk1.8.0_131\\jre\\bin;
";C:\\ProgramData\\chocolatey\\bin;D:\\Program Files (x86)\\LINQPad5;C:\\Program Files (x86)\\Microsoft Visual Studio\\2
017\\Enterprise\\MSBuild\\15.0\\Bin\\amd64;C:\\Users\\JRoger\\AppData\\Roaming\\npm;D:\\Program Files\\Git\\cmd;C:\\Prog
ram Files (x86)\\Microsoft VS Code\\bin;D:\\Program Files\\nodejs;D:\\Program Files\\nodejs\\;C:\\Users\\JRoger\\AppData
\\Local\\Microsoft\\WindowsApps;D:\\Program Files\\Python27;D:\\Program Files\\apache-maven-3.5.0\\bin;"C:\\Program File
s\\Java\\jdk1.8.0_131\\bin;";"C:\\Program Files\\Java\\jdk1.8.0_131\\jre\\bin;";C:\\Program Files (x86)\\Microsoft Visua
l Studio\\2017\\Enterprise\\MSBuild\\15.0\\Bin\\amd64;D:\\Program Files (x86)\\Microsoft VS Code\\bin;D:\\Program Files\
\nodejs;C:\\Users\\JRoger\\AppData\\Roaming\\npm',
        'PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.CPL',
        'PROCESSOR_ARCHITECTURE=AMD64',
        'PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 94 Stepping 3, GenuineIntel',
        'PROCESSOR_LEVEL=6',
        'PROCESSOR_REVISION=5e03',
        'ProgramData=C:\\ProgramData',
        'ProgramFiles=C:\\Program Files',
        'ProgramFiles(x86)=C:\\Program Files (x86)',
        'ProgramW6432=C:\\Program Files',
        'PSModulePath=D:\\Users\\JRoger\\Documents\\WindowsPowerShell\\Modules;C:\\Program Files\\WindowsPowerShell\\Mod
ules;C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules;C:\\Program Files (x86)\\Microsoft SQL Server\\130\\Tools\\
PowerShell\\Modules\\;C:\\Program Files\\WindowsPowerShell\\Modules\\;C:\\Program Files (x86)\\Microsoft SDKs\\Azure\\Po
werShell\\ResourceManager\\AzureResourceManager\\;C:\\Program Files (x86)\\Microsoft SDKs\\Azure\\PowerShell\\ServiceMan
agement\\;C:\\Program Files (x86)\\Microsoft SDKs\\Azure\\PowerShell\\Storage\\',
        'PUBLIC=C:\\Users\\Public',
        'SESSIONNAME=Console',
        'SystemDrive=C:',
        'SystemRoot=C:\\Windows',
        'TEMP=C:\\Users\\JRoger\\AppData\\Local\\Temp',
        'TMP=C:\\Users\\JRoger\\AppData\\Local\\Temp',
        'USERDOMAIN=JROGER-PC',
        'USERDOMAIN_ROAMINGPROFILE=JROGER-PC',
        'USERNAME=JRoger',
        'USERPROFILE=C:\\Users\\JRoger',
        'VBOX_MSI_INSTALL_PATH=D:\\Program Files\\Oracle\\VirtualBox\\',
        'VS140COMNTOOLS=C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\Common7\\Tools\\',
        'VSSDK140Install=C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VSSDK\\',
        'windir=C:\\Windows' ],
     stdio: [ [Object], [Object], [Object] ] },
  args:
   [ 'C:\\Windows\\system32\\cmd.exe',
     '/s',
     '/c',
     '"node --version"' ],
  file: 'C:\\Windows\\system32\\cmd.exe' }

_{(edited by @vsemozhetbyt: added backticks and folded output)}

[vsemozhetbyt]

@netcore-jroger So if you run require('child_process').spawnSync('node', ['--version']); in the v6.11.1 RERL, it just exits without any output?

[netcore-jroger]

yes !

[vsemozhetbyt]

cc @nodejs/platform-windows

[netcore-jroger]

in terminal also without any output.

[netcore-jroger]

@vsemozhetbyt

require('child_process').execSync('node', ['--version']);

work very well.

[netcore-jroger]

I found a similar question link

[gibfahn]

In that case it's probably something to do with needing to spawn a batch shell on Windows. If you're running batch commands execSync is the better choice.

[netcore-jroger]

https://stackoverflow.com/questions/45047450/in-the-child-process-module-in-node-js