Examples of hudson.EnvVars

hudson.EnvVars
Environment variables.
While all the platforms I tested (Linux 2.6, Solaris, and Windows XP) have the case sensitive environment variable table, Windows batch script handles environment variable in the case preserving but case insensitive way (that is, cmd.exe can get both FOO and foo as environment variables when it's launched, and the "set" command will display it accordingly, but "echo %foo%" results in echoing the value of "FOO", not "foo" — this is presumably caused by the behavior of the underlying Win32 API GetEnvironmentVariable acting in case insensitive way.) Windows users are also used to write environment variable case-insensitively (like %Path% vs %PATH%), and you can see many documents on the web that claims Windows environment variables are case insensitive.
So for a consistent cross platform behavior, it creates the least confusion to make the table case insensitive but case preserving.
In Jenkins, often we need to build up "environment variable overrides" on master, then to execute the process on slaves. This causes a problem when working with variables like PATH. So to make this work, we introduce a special convention PATH+FOO — all entries that starts with PATH+ are merged and prepended to the inherited PATH variable, on the process where a new process is executed. @author Kohsuke Kawaguchi


    int expectedBuildNumber = projectB.getNextBuildNumber();
    projectA.scheduleBuild2(0, new UserCause()).get();


    Run buildB1 = projectB.getBuildByNumber(expectedBuildNumber);
    EnvVars envVars = builder.getEnvVars();
    //System.out.println("envVars: " + envVars);


    assertThat(envVars, notNullValue());
    assertThat(envVars, hasEntry("LAST_TRIGGERED_JOB_NAME", "projectB"));
    assertThat(envVars, hasEntry("TRIGGERED_BUILD_NUMBER_projectB", Integer.toString(expectedBuildNumber)));

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    projectB.updateNextBuildNumber(3);


    int expectedBuildNumber = projectB.getNextBuildNumber();
    projectA.scheduleBuild2(0, new UserCause()).get();


    EnvVars envVars = builder.getEnvVars();
    //System.out.println("envVars: " + envVars);


    assertThat(envVars, notNullValue());
    assertThat(envVars, hasEntry("LAST_TRIGGERED_JOB_NAME", testNameResult));
    assertThat(envVars, hasEntry("TRIGGERED_BUILD_NUMBER_" + testNameResult, Integer.toString(expectedBuildNumber)));

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    int firstExpectedBuildNumberC = projectC.getNextBuildNumber();


    projectA.scheduleBuild2(0, new UserCause()).get();
    waitUntilNoActivity();


    EnvVars envVars = builder.getEnvVars();
    //System.out.println("envVars: " + envVars);


    assertEquals(buildsToTest, projectB.getBuilds().size());
    assertEquals(buildsToTest, projectC.getBuilds().size());

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    projectA.scheduleBuild2(0, new UserCause()).get();
    waitUntilNoActivity();


    Run buildB1 = projectB.getBuildByNumber(expectedBuildNumber);
    Run buildC1 = projectC.getBuildByNumber(expectedBuildNumberC);
    EnvVars envVars = builder.getEnvVars();
    //System.out.println("envVars: " + envVars);


    assertThat(envVars, notNullValue());
    assertThat(envVars, hasEntry("LAST_TRIGGERED_JOB_NAME", "projectB"));
    assertThat(envVars, hasEntry("TRIGGERED_BUILD_NUMBER_projectB", Integer.toString(expectedBuildNumber)));

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                      jenkins.getItemByFullName("downstream2", FreeStyleProject.class).getBuildByNumber(1)
              ),
              new HashSet<AbstractBuild<?,?>>(action.getTriggeredBuilds())
          );
          
          EnvVars env = new EnvVars();
          action.buildEnvVars(b, env);
          lastReferenceValue = env.get(BuildInfoExporterAction.JOB_NAME_VARIABLE);
          assertEquals("downstream1", lastReferenceValue);
          
          b.save();
      }
      
      {
          FreeStyleProject p = jenkins.getItemByFullName("upstream", FreeStyleProject.class);
          assertNotNull(p);
          FreeStyleBuild b = p.getLastBuild();
          assertNotNull(b);
          BuildInfoExporterAction action = b.getAction(BuildInfoExporterAction.class);
          assertNotNull(action);
          
          // action should contain following builds:
          //  downstream1#1
          //  downstream1#2
          //  downstream2#1
          
          assertEquals(
              Sets.newHashSet(
                      jenkins.getItemByFullName("downstream1", FreeStyleProject.class).getBuildByNumber(1),
                      jenkins.getItemByFullName("downstream1", FreeStyleProject.class).getBuildByNumber(2),
                      jenkins.getItemByFullName("downstream2", FreeStyleProject.class).getBuildByNumber(1)
              ),
              new HashSet<AbstractBuild<?,?>>(action.getTriggeredBuilds())
          );
          
          EnvVars env = new EnvVars();
          action.buildEnvVars(b, env);
          assertEquals(lastReferenceValue, env.get(BuildInfoExporterAction.JOB_NAME_VARIABLE));
      }
  }

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        Queue.Item q = hudson.getQueue().getItem(projectB);
        assertNotNull("projectB should be triggered: " + getLog(r), q);
        r = (Run)q.getFuture().get();
        assertEquals("should be exactly one ParametersAction", 1,
                     r.getActions(ParametersAction.class).size());
        EnvVars envVars = builder.getEnvVars();
        assertNotNull("builder should record environment", envVars);
        assertEquals("FOO", "bar", envVars.get("FOO"));
        assertEquals("BAR", "foo", envVars.get("BAR"));
        assertEquals("BAZ", "moo", envVars.get("BAZ"));
        assertEquals("HOHO", "blah", envVars.get("HOHO"));
    }

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        @Override
        public boolean perform(AbstractBuild<?, ?> build, Launcher launcher, BuildListener listener)
                throws InterruptedException, IOException
        {
            EnvVars env = build.getEnvironment(listener);
            env.putAll(build.getBuildVariables());
            build.getWorkspace().child(filename).write(env.expand(content), encoding);
            return true;
        }

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        return getParameters(from, to, step, SteppingValidationEnum.FAIL);
    }


    private List<AbstractBuildParameters> getParameters(long from, long to, long step, SteppingValidationEnum validationFailure) throws IOException, InterruptedException, AbstractBuildParameters.DontTriggerException {
        AbstractBuild<?,?> build = mock(AbstractBuild.class);
        EnvVars vars = new EnvVars();
        TaskListener listener = mock(TaskListener.class);
        when(build.getEnvironment(listener)).thenReturn(vars);
        when(listener.getLogger()).thenReturn(System.out);
        CounterBuildParameterFactory counterFactory = new CounterBuildParameterFactory(from,to,step,"",validationFailure);

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     * setting the environment variable explicitly is still useful in case this
     * Ant forks other Ant processes via normal way. See HUDSON-3644.
     */
    @Override
    public EnvVars getEnvironment(TaskListener log) throws IOException, InterruptedException {
        EnvVars envs = super.getEnvironment(log);
        envs.putAll(project.getIvyBuilderType().getEnvironment());
        return envs;
    }

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        @Override
        protected Result doRun(final BuildListener listener) throws Exception {
            PrintStream logger = listener.getLogger();
            try {
                EnvVars envVars = getEnvironment(listener);


                Config config = IvyConfig.provider.getConfigById(project.getSettings());
                if (config != null) {
                    FilePath tmp = getWorkspace().createTextTempFile("ivy", "xml", config.content);
                    settings = tmp.getRemote();

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