I'm looking at a Jenkins job and trying to understand it.
I have an Execute shell command box in my Build section:
> mkdir mydir
> cd mydir
>
> svn export --force https://example.com/repo/mydir .
When Jenkins is done executing that command, and moves on to the next build step, what is its working directory?
workspece-root/ or workspace-root/mydir ?
As the next step, I have Invoke top-level Maven targets (still in the Build section).
What I really want to know is: why does that execute successfully?
Is it because Jenkins automatically moves back to the workspace-root/ folder after executing a shell command box, or is it because the next job is a "top-level" job, and Jenkins therefore changes back to the workspace-root/?
Each build step is a separate process that Jenkins spawns off. They don't share anything, neither current directory, nor environment variables set/changed within the build step. Each new build step starts by spawning a new process off the parent process (the one running Jenkins)
It's not that Jenkins "move back" to $WORKSPACE. It's that Jenkins discards the previous session.
I lately saw that if you print the CWD , I would get the Project_NAME.
E.g
D:\jenkins\workspace\My_Project
Any script you might be running wont be found. Hence we can do a "CD path" before we start out scripts.
Slav's explanation is very good and I thought of complementing it by providing a real world example that shows how multiple Windows batch commands look like even if they work in the same directory:
Command 1
REM #ensures that all npm packages are downloaded
cd "%WORKSPACE%"
npm install
Command 2
REM #performs a prod-mode build of the project
cd "%WORKSPACE%"
ng build --prod --aot=true -environment=pp
So, each one ensure that current working directory points to the current project directory.
Related
I am new to Jenkins but have done a few builds/deployment jobs of .net project successfully.
Now I am trying to build/deploy Vue.js project through Jenkins but just cannot get through...
I can build the project directly on a server using command prompt. It builds and creates files for deployment in a right directory.
When I am trying to do it in Jenkins job (using the same npm commands) it does not give any error messages, says it built successfully but it does NOT create any files for deployment.
Does anybody encounter this problem? Did anybody build Vue js project through Jenkins? Any help appreciated. Thanks!
In execute windows batch command I run:
cd myworkdirectory
npm install
npm run build
Not too complex, as I found.
Create freestyle project.
In section Source Code Management please define your repository.
In section Build Triggers please define triggers
In section Build define either Execute Windows batch command or Execute shell within sections like (my choice in the moment - windows):
git checkout develop
npm -g install
npm run build
del /s /f /q c:\applications\frontend-app-build\*.*
for /f %%f in ('dir /ad /b c:\applications\frontend-app-build\') do rd /s /q c:\applications\frontend-app-build\%%f
robocopy dist c:\applications\frontend-app-build\ /E
In my system, I am downloading new build everyday in 1 folder and then use it for further causes but after running jenkins job I want to delete files in the folder (not workspace) which will delete specific folders from same directory. This will help me downloading new build every time based on different jenkins job running on same machine.
EG:
I am downloading x.x build and then running jenkins job on machine and then if I want to run other job which requires x.y build, it will just see if SOME build is already there in folder. if it is there, it will not download any kit after that. So, now simplest thing I can do is delete x.x after every jenkins run (post build ) so it will download x.y next time..
Please help.
Thanks in advance
You can delete the whole folder using this syntax to delete a folder called bin:
stage('Setup') {
steps {
dir ('bin') {
deleteDir()
}
}
}
If my understanding is right, consider my below assumptions
If your jenkins is running on a Unix server, then you can configure a post build step as suggested by nerdwaller above
In the job configuration, in the build step, select the option "execute unix command"
In the box for the shell script, you can use rm -rf <<directoryname>>
Else, if your jenkins is running on a windows server, then select "execute batch command" from the build step and give the appropriate command like rmdir /Q /S nonemptydir
However, my best approach would be to use a platform independent tool like ant to delete the folders using Ant Delete Task and it can be configured similarly like the above two approaches instead selecting "invoke ant" in the build step/ post build step.
This will help you to achieve what you need.
I have setup a jenkins job to build my project. I have a jake.sh file in my project and the code is pulled from github. I want "npm install" command to be executed and then jake.sh to be executed once the the code is checked out.
How can I configure this in jenkins? I have tried givin ./jake.sh and jake.sh in Build->Execute Shell section
According what you tell I think the problem can be
The script is not marked as a executable. In this case add in Build -> Execute Shell (in case you have linux) sudo chmod 777 path_to_script/jake.sh.
The script is not in the base directory. Remembeber that when you execute a bash script, the current directory is /path_to_job/workspace. So you have first to move to the script folder (cd path_to_script) or specify the path when running it: ./path_to_script/jake.sh.
I hope this solves your problem.
A workaround for shell scripts can be to run the script as
bash ./jake.sh
instead of
./jake.sh
Then you don't have to do chmod. Useful when you wipe the workspace before every build.
In the same manner, if you have a nodejs shell script or python script, you can run node myscript.js / python myscript.py.
I have deployed a war file in a remote machine using Jenkins. Now I want to rename the war file through jenkins before it extracts the work folder? How can this be done? I tried post deployment action -> execute shell and mv file.war to new-file.war but it returns an error saying : mv: cannot stat `file.war': No such file or directory.
Suppose there was something wrong with my path it would not even have gone to remote location. but for me, after scp' ing it to remote location thru jenkins, and when i try to do a mv, it fails.. What could the reason be??
Adding additional Step of Execute shell during Add build Step or Add post-build action stage, normal renaming shell command mv can be used to rename artifacts.
Note: Make sure use the correct path(Relative to project/workspace root)
Your mv command is probably executed in another directory than the one you are expecting.
To know the directory your script is running in without reading the jenkins / plugin documentation add
echo "pwd of script is: " `pwd`
to your shell script and inspect the output of the jenkins build - that way you can be sure about the directory the script is run in.
I can't seem to run a build execute shell step in Jenkins. I've worked with Hudson in the past on windows and I was able to create shell/batch steps without a problem but I seem to be be missing something here.
It's a fresh jenkins install and I go to "add build step", "execute shell" and enter "echo hi" in the command. I run the build and when I look in the console output, nothing happens.
I've also tried executing a test.sh file which also just echoes hi. I've tested this in both a linux install and an os X installed Jenkins server.
What am I missing in the configuration to run a shell script?
The console output shows that the shell script steps were skipped completely
Started by user admin
Finished: SUCCESS
It looks like Jenkins is not being able to redirect the output from the system. What version of Java are you using? If you're using OpenJDK, could you try with Sun Java/Sun JDK?
First test to try to check if anything is executing at all: add the following to your "Execute Shell"
#!/bin/bash
echo "HELLO WORLD" > /tmp/testfile
Run this and check if there is a /tmp/testfile in on your Linux system, and if it contains the HELLO WORLD text, it means your script is in fact executing.
Which version of Jenkins do you have?
The last good version that I can attest to (last one I know works well at least for us) is 1.447. If you're not using that one, would you be able to try with it?
Also, could you add #!/bin/sh or #!/bin/bash before echo hi on your "Execute Shell" for the Linux system and see if that works.
Also, try running a script using source /path/to/script and see if that works. The script should contain #!/bin/sh or #!/bin/bash as the first line, just to see if that makes a difference.
Note: none of this should be required, but is helpful just to get more information on what's going on. Couldn't fit all this into a comment. I'll update my answer based on your answers to the above, or delete if I can't get anything..
Putting this here for posterity.
I had a Jenkins project configured with Maven running clean test and a execute shell in the pre steps. The logs from Maven where not coming through and the script was not executing. Once I unchecked Build modules in parallel under the Maven build options my logs and scripts started working.
Make sure its in a location where Jenkins can see it, check permissions.