private void fixSbtSocketLengthIssueIfNeeded()

in tc-sbt-runner-agent/src/main/java/jetbrains/buildServer/sbt/SbtRunnerBuildService.java [375:408]

34 lines of code
9 McCabe index (conditional complexity)


    private void fixSbtSocketLengthIssueIfNeeded(Map<String, String> envVars) throws RunBuildException {
        if ("false".equalsIgnoreCase(getConfigParameters().get("teamcity.internal.sbt.setXdgRuntimeDir.enabled"))) {
            return;
        }
        final String xdgRuntimeDir = "XDG_RUNTIME_DIR";
        if (getEnvironmentVariables().containsKey(xdgRuntimeDir)) { // allow to override the value
            return;
        }
        final int maxAllowedTmpDirLength = 54;
        if (SystemInfo.isWindows || getBuildTempDirectory().getAbsolutePath().length() <= maxAllowedTmpDirLength) {
            return;
        }
        final String ourSubDir = RandomStringUtils.randomAlphanumeric(4).toLowerCase();
        final String tmpDirEnv = firstNonEmptyEnvVariableOrNull("TMPDIR", "TEMP", "TMP");
        final String tmpDirRoot;
        if (tmpDirEnv != null && tmpDirEnv.length() <= maxAllowedTmpDirLength - ourSubDir.length()) {
            if (tmpDirEnv.endsWith("/")) {
                tmpDirRoot = tmpDirEnv.substring(0, tmpDirEnv.length() - 1);
            } else {
                tmpDirRoot = tmpDirEnv;
            }
        } else {
            tmpDirRoot = "/tmp";
        }
        final File tmpDir = new File(tmpDirRoot, ourSubDir);
        try {
            FileUtil.createDir(tmpDir);
        } catch (IOException e) {
            throw new RunBuildException("Failed to create temp directory for SBT at " + tmpDir.getAbsolutePath(), e);
        }
        myFilesToDelete.add(tmpDir);
        getLogger().message(xdgRuntimeDir + " set to: " + tmpDir.getAbsolutePath());
        envVars.put(xdgRuntimeDir, tmpDir.getAbsolutePath());
    }