FAKE get TeamCity build branch - f#

I'm constructing some build scripts using FAKE for a TeamCity setup. Part of my build requires me to access the teamcity.build.branch parameter, however because it's not an environment variable, I'm not sure how to access it.
I've tried adding %teamcity.build.branch% to an environment variable in TeamCity but it doesn't seem to like that. I also can't access it using the FAKE git module because team city agents don't use git to get the project files, TeamCity hands it to them.
How would I go about getting the teamcity.build.branch parameter through to my FAKE scripts? Ideally I'd like it as an environment variable so I can pick it up straight from within the script, but I'm open to any other ideas.

Try passing %teamcity.build.branch% as a parameter in your build step.

I figured it out with a bit of help from #Nadeem's answer.
I now have my build.bat/cmd file taking in a parameter which I'm then passing into my Fake.exe call like so:
"packages\FAKE\tools\Fake.exe" build.fsx branch=%1
Then inside my FAKE code I'm using the getBuildParamOrDefault "branch" <default branch here>.
I'm then using this as the branch name. I'm also using a string split on the build param that comes in because normally it's in the format of ref/head/<branch name> and I only want the branch name.
I also had to pass in %teamcity.build.vcs.branch.<project>% instead of %teamcity.build.branch% as my agents didn't like the implicit requirement. I'm not entire sure why this is but all is working well now.

Related

Jenkins: Pass environment variable to the job parameter

Since I have the same static rarely changed parameters used by several jobs I decided to put it somewhere in one place of my Jenkins and use it across jobs.
The first thought that came to my mind was to move my 'static data' to the environment variables and get it using Active choice reactive parameter plugin which allows running simple groovy scripts on the job parameters page.
Please note that I know how to get environment parameters in the pipeline, but I do really need to have this data on the build with parameters screen, e.g. once I clicked build with parameters - I need my groovy code inside Active choice reactive parameter was able to read this environment variable and display as a parameter to the user.
A simple example of this need:
The environment variable contains the list of servers, the job is going to perform deployment of the application to the selected server. In this case, I want to be able to write something like this in the groovy script section of Active choice reactive parameter:
return[${env.SERVERS_LIST}]
Unfortunately the example above doesn't work. I wasn't able to find any working solution for this yet.
Well, after a few more tries I finally found a solution.
Instead of trying to read the environment variable in the pipeline manner the simple
return [SERVERS_LIST]
works perfect

Select branch via URL param for Jenkins job build

I make builds in Jenkins many times a day and I would like to automate it a little bit, but still access it through web interface.
I'm already selecting job with URL (and building this URL with very simple Alfred workflow) but I would like to also select a branch – we have many branches in repo and 90% of time I want to select master of develop
jenkins.skypicker.com:8080/job/beta/build works great for selecting job, but is there a way to select branch, something like jenkins.skypicker.com:8080/job/beta/build?branch=origin/master?
You can, theoretically, use the Parameterized Build feature to define a parameter later to be used with GIT plugin configuration. Then you should be able to use the format of url like this:
http://jenkins.skypicker.com:8080/job/beta/buildWithParameters?BRANCH=origin%2Fmaster
Be careful with the special character in the branch name though. If you can avoid it by specifying a branch name in the form of origin/$BRANCH it would be safer...
Remember that in order to start the build process one must use POST method, not GET - just a side note...
Anser by #Łukasz-rżanek is right, just adding a few notes on which I've stumbled
Set this in Job configuration:
and run it
#!/bin/bash
JOB_NAME="Beta"
JOB_BRANCH=""
JOB_TOKEN="TOKEN"
JENKINS_URL="http://jenkins..."
crumb=`curl "$JENKINS_URL/crumbIssuer/api/xml?xpath=concat(//crumbRequestField,\":\",//crumb)"`
curl -H $crumb -X POST $JENKINS_URL/job/$JOB_NAME/buildWithParameters?token=$JOB_TOKEN

Using environment variables with Jenkins

I'm building a group of projects from the SVN. There is a possibility of changing the SVN location time to time. As there are bunch of projects I hope to give the repository url with a environment variable so i can change all the url's easily. Any idea how to do that??
In Subversion Source Code Management, you can use variable in the Repository URL, simply type:
http://my.svn.com/path/to/${VARIABLE}
${VARIABLE} is a job parameters that is defined earlier. Never heard of anyone wanting to use actual environment variables for this, but you can try with the same syntax.
By default, it will give you a red warning that this is not a valid URL. You can disable this warning by going to Manage Jenkins -> Configure System and look for Validate repository URLs up to the first variable name. Put a checkmark there and save.

Jenkins global variables

I'm trying to use global variables within Jenkins on Windows to "automagically" retrieve the proper code base from our SCM system, but in each case that I've tried the variable substitution is not happening.
I've set up some global variables, with default values, within "Configure System" and have tried to access them with $VARIABLE, ${VARIABLE} and %VARIABLE% as part of the Branch field for the Surround SCM plugin with no success whatsoever.
I've also installed the Global Variable String Parameter plugin with the same success rate (0%). Using a literal value works just fine, but no type of variable substitution seems to work at all and I'm sure that someone has come upon this before and resolved it.
I've tried searching for something similar to this but nothing really approaches this usage of globals, instead it is normally discussed as a function within an external script, or parameter passed to a batch file, etc.
I've run "set" as the first step and can see that the variable is available, but the substitution is just not happening. If it means I will have to script something, then so be it, as I am trying to make this extremely flexible and as headache free as possible, but that isn't seeming to be the case in this case thus far.
My problem is eerily similar to this post: How are environment variables used in Jenkins with Windows Batch Command?, but again, I'm not looking to script this as it is a MUCH simpler solution to use the variable values directly.
from https://wiki.jenkins-ci.org/display/JENKINS/Surround+SCM+Plugin
Troubleshooting
Please contact Seapine support with questions about the integration or
to report bugs or feature requests.
Set your Jenkins project to be parameterized. Create a string parameter GIT_BRANCH that will be your branch variable (for example).
Under Source Control Management, use your branch variable in the form $GIT_BRANCH
That’s it. When you run your project, you will be prompted to enter a value for your GIT_BRANCH parameter.

Get result of a build step in Hudson/Jenkins to re-use it in another one

My question may be silly but I've been trying several ways and I still can't do what I want, i.e.:
use the scp target of Ant to target a remote machine and execute
a script there
this script creates a dynamic list of files
get this list of files (only their names) back in Hudson to use it in the next build step (another scp from Ant)
I tried to use environment variables but they are interpreted by Hudson so I'm stuck here...
Globally my question would be: how to get a result from an Ant build step ?
Thanks for your ideas,
Emmanuel
You may find File parameter useful. This allows you to create an input file, pass it to build. You may need to write script/ant script to process the file though.
In the long term you may evaluate a Hudson farm. This will allow to create tasks that span multiple machines , pass results around. (https://wiki.jenkins-ci.org/display/JENKINS/Plugins)
You can get the ID(s) of the job that triggered your job via the API and fetch their status.

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