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

                  return FormValidation.ok();


              if(descriptor().isValidateRemoteUpToVar()) {
                  url = (url.indexOf('$') != -1) ? url.substring(0, url.indexOf('$')) : url;
              } else {
                  url = new EnvVars(EnvVars.masterEnvVars).expand(url);
              }


              if(!URL_PATTERN.matcher(url).matches())
                  return FormValidation.ok();

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            // Test the connection only if we have admin permission
            if (!Hudson.getInstance().hasPermission(Hudson.ADMINISTER))
                return FormValidation.ok();


            try {
                SVNURL repoURL = SVNURL.parseURIDecoded(new EnvVars(EnvVars.masterEnvVars).expand(v));
                StandardCredentials credentials = lookupCredentials(context, credentialsId, repoURL);
                SVNNodeKind node = null;
                try {
                    node = checkRepositoryPath(context,repoURL, credentials);
                } catch (SVNCancelException ce) {

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        if(env == null && build == null)
            return locations;


        ModuleLocation[] outLocations = new ModuleLocation[locations.length];
        EnvVars env2 = env != null ? new EnvVars(env) : new EnvVars();
        if (build instanceof AbstractBuild) {
            env2.putAll(((AbstractBuild<?,?>) build).getBuildVariables());
        }
        EnvVars.resolve(env2);
        for (int i = 0; i < outLocations.length; i++) {
            outLocations[i] = locations[i].getExpandedLocation(env2);
        }

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     */
    @Override
    public void buildEnvVars(AbstractBuild<?, ?> build, Map<String, String> env) {
        super.buildEnvVars(build, env);


        ModuleLocation[] svnLocations = getLocations(new EnvVars(env), build);


        try {
            Map<String,Long> revisions = parseSvnRevisionFile(build);
            Set<String> knownURLs = revisions.keySet();
            if(svnLocations.length==1) {

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        return false;
    }


    @SuppressWarnings("unchecked")
    @Override public void checkout(Run build, Launcher launcher, FilePath workspace, final TaskListener listener, File changelogFile, SCMRevisionState baseline) throws IOException, InterruptedException {
        EnvVars env = build.getEnvironment(listener);
        if (build instanceof AbstractBuild) {
            EnvVarsUtils.overrideAll(env, ((AbstractBuild) build).getBuildVariables());
        }


        List<External> externals = null;

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        }


        Run<?,?> lastCompletedBuild = project.getLastCompletedBuild();


        if (lastCompletedBuild!=null) {
            EnvVars env = lastCompletedBuild.getEnvironment(listener);
            if (lastCompletedBuild instanceof AbstractBuild) {
                EnvVarsUtils.overrideAll(env, ((AbstractBuild) lastCompletedBuild).getBuildVariables());
            }
            if (project instanceof AbstractProject && repositoryLocationsNoLongerExist(lastCompletedBuild, listener, env)) {
                // Disable this project, see HUDSON-763

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            return getModuleRoot(workspace);
        }


        // TODO: can't I get the build listener here?
        TaskListener listener = new LogTaskListener(LOGGER, WARNING);
        final EnvVars env;
        try {
            env = build.getEnvironment(listener);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } catch (InterruptedException e) {

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            return getModuleRoots(workspace);
        }


        // TODO: can't I get the build listener here?
        TaskListener listener = new LogTaskListener(LOGGER, WARNING);
        final EnvVars env;
        try {
            env = build.getEnvironment(listener);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } catch (InterruptedException e) {

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            // Get environment
            Computer c = node.toComputer();
            if (c != null) {
                try {
                    EnvVars env = c.getEnvironment().overrideAll(target);
                    target.putAll(env);
                } catch (IOException ex) {
                    // Ignore exception
                }
            }

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                useEnvironment = false;
            }
        }
        if (useEnvironment) {
            try {
                EnvVars vars = build.getEnvironment(TaskListener.NULL);
                environmentVarsFromExtensions.putAll(vars);
            } catch (IOException ex) {
                Logger.getLogger(PerforceSCM.class.getName()).log(Level.SEVERE, null, ex);
            } catch (InterruptedException ex) {
                Logger.getLogger(PerforceSCM.class.getName()).log(Level.SEVERE, null, ex);

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