Asked  3 Months ago    Answers:  5   Viewed   434 times

I am trying to run a block if a directory exists in my jenkins workspace and the pipeline step "fileExists: Verify file exists" in workspace doesn't seem to work correctly.

I'm using Jenkins v 1.642 and Pipeline v 2.1. and trying to have a condition like

if ( fileExists 'test1' ) {
  //Some block
}

What are the other alternatives I have within the pipeline?

 Answers

65

You need to use brackets when using the fileExists step in an if condition or assign the returned value to a variable

Using variable:

def exists = fileExists 'file'

if (exists) {
    echo 'Yes'
} else {
    echo 'No'
}

Using brackets:

if (fileExists('file')) {
    echo 'Yes'
} else {
    echo 'No'
}
Wednesday, July 28, 2021
 
Besnik
answered 3 Months ago
31

Your question is ambiguous, so there are multiple possible answers depending on what you're really trying to achieve.

If you're developping as I'm guessing a desktop application using Titanium, then you can use the FileSystem module's getFile to get the file object, then check if it exists using the exists method.

Here's an example taken from the Appcelerator website:

var homeDir = Titanium.Filesystem.getUserDirectory();
var mySampleFile = Titanium.Filesystem.getFile(homeDir, 'sample.txt');

if (mySampleFile.exists()) {
    alert('A file called sample.txt already exists in your home directory.');
    ...
}

Check the getFile method reference documentation

And the exists method reference documentation

For those who thought that he was asking about an usual Web development situation, then thse are the two answers I'd have given:

1) you want to check if a server-side file exists. In this case you can use an ajax request try and get the file and react upon the received answer. Although, be aware that you can only check for files that are exposed by your web server. A better approach would be to write a server-side script (e.g., php) that would do the check for you, given a filename and call that script via ajax. Also, be aware that you could very easily create a security hole in your application/server if you're not careful enough.

2) you want to check if a client-side file exists. In this case, as pointed you by others, it is not allowed for security reasons (although IE allowed this in the past via ActiveX and the Scripting.FileSystemObject class) and it's fine like that (nobody wants you to be able to go through their files), so forget about this.

Friday, June 25, 2021
 
mnagel
answered 4 Months ago
11
public boolean fileExists(Context context, String filename) {    
    File file = context.getFileStreamPath(filename);
    if(file == null || !file.exists()) {
        return false;
    }
    return true;
}

EDIT:

Also, here is another way for files in external storage.

String fileUrl = "/appname/data.xml";
String file = android.os.Environment.getExternalStorageDirectory().getPath() + fileUrl;
File f = new File(file);

if(f.exists())
return;
Sunday, August 1, 2021
 
Nickool
answered 3 Months ago
50

You can checkout multiple directories using checkout, but you have to specify directory where you want checkout this. You can generate snippets using jenkins (Snippet generator bellow script field). Choose checkout, next git repository and in Additional Behaviours choose: checkout into sub directory.

When you will have 2 repositories you can load script from repository you want usin load. Example:

node {
    // first repository
    checkout([$class: 'GitSCM', branches: [[name: '*/master']], doGenerateSubmoduleConfigurations: false, extensions: [[$class: 'RelativeTargetDirectory', relativeTargetDir: 'subdirectory1']], submoduleCfg: [], userRemoteConfigs: [[url: 'repo1.git']]])
    // second repository
    checkout([$class: 'GitSCM', branches: [[name: '*/master']], doGenerateSubmoduleConfigurations: false, extensions: [[$class: 'RelativeTargetDirectory', relativeTargetDir: 'subdirectory2']], submoduleCfg: [], userRemoteConfigs: [[url: 'repo2.git']]])
    // run first script
    load 'subdirectory1/Jenkinsfile'
    // run second script
    load 'subdirectory2/Jenkinsfile'
}
Monday, August 2, 2021
 
Blur
answered 3 Months ago
94

Sure, you would want to label your slave nodes somehow. I didn't look up what tox is, but maybe like 'os_linux' and 'os_mac', and then you can use the node step in your Jenkinsfile to run some commands in the context of each slave. So your Tox stage might look like:

stage('Tox') {
  steps {
    node('os_linux') {
      sh 'tox -v --recreate' 
    }
    node('os_mac') {
      sh 'tox -v --recreate' 
    }
  }
}

This will run the tasks in serial, and Jenkinsfile syntax also supports doing those two tox commands in parallel on different nodes. Use the "Pipeline Syntax" link in the left nav of your Jenkins UI (only on pipeline jobs) to play around with node and parallel. Rock on.

Friday, October 1, 2021
 
user1761176
answered 2 Weeks ago
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