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  1. Jenkins
  2. JENKINS-13466

Custom environment variables not available when build started by an SCM change

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    • Icon: Bug Bug
    • Resolution: Postponed
    • Icon: Major Major
    • core, envinject-plugin
    • None
    • not applicable

      Hi there,

      I may have found a sneaky bug. Custom environment variables can be defined by the user into the general & nodes config:

      When a build is triggered by an SCM change, those variables are not available for SCM plugins.

      Let's say that I have a field in my SCM plugin configured with this value: ${JOB_NAME}_${HOSTNAME}_${NODE_TYPE} If the build is triggered by an SCM change I get this error:

      Started by an SCM change
      Building remotely on vmo426
      [ClearCase] ### Begin source code retrieval ###
      cleartool error: Illegal characters found in view name : ${NODE_TYPE}. An environment variable may have not been resolved.
      Finished: FAILURE
      

      Here is the code snipet from my plugin that does that:

      @Override
      public boolean checkout(AbstractBuild build, Launcher launcher, FilePath workspace, 
              BuildListener listener, File changelogFile) throws IOException, InterruptedException
      {
          try {          
              logger.log("### Begin source code retrieval ###");
      
              String resolvedViewName = build.getEnvironment(listener).expand(this.viewName);
              
              Pattern pattern = Pattern.compile("(\\$\\{.+?\\})");
              Matcher matcher = pattern.matcher(resolvedViewName);
              if (matcher.find()) {
                  String message = "Illegal characters found in view name : %s. " +
                          "An environment variable may have not been resolved.";
                  throw new ClearToolError(String.format(message, matcher.group()));
              }
      

      I removed ${NODE_TYPE} from my SCM configuration to let the build continue. And the user custom environment variables seem to be injected into the build environment after the SCM checkout.

      Started by an SCM change
      Building remotely on vmo426
      [ClearCase] ### Begin source code retrieval ###
      ...
      [ClearCase] === End source code retrieval ===
      [polling_linux] $ /bin/sh -xe /tmp/hudson7589128551511062241.sh
      + env
      ...
      NODE_TYPE=SLAVE
      ...
      

      Could this be fixed?

        1. custom-env-master.jpg
          9 kB
          Robin Jarry
        2. custom-env-slave.jpg
          8 kB
          Robin Jarry

            gbois Gregory Boissinot
            robinjarry Robin Jarry
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              Created:
              Updated:
              Resolved: