public ScmResult executeBranchCommand()

in maven-scm-providers/maven-scm-providers-svn/maven-scm-provider-svnexe/src/main/java/org/apache/maven/scm/provider/svn/svnexe/command/branch/SvnBranchCommand.java [56:128]
55 lines of code
12 McCabe index (conditional complexity)

    public ScmResult executeBranchCommand(
            ScmProviderRepository repo, ScmFileSet fileSet, String branch, ScmBranchParameters scmBranchParameters)
            throws ScmException {
        if (branch == null || branch.trim().isEmpty()) {
            throw new ScmException("branch name must be specified");
        }

        if (!fileSet.getFileList().isEmpty()) {
            throw new ScmException("This provider doesn't support branching subsets of a directory");
        }

        SvnScmProviderRepository repository = (SvnScmProviderRepository) repo;

        File messageFile = FileUtils.createTempFile("maven-scm-", ".commit", null);

        try {
            FileUtils.fileWrite(messageFile.getAbsolutePath(), "UTF-8", scmBranchParameters.getMessage());
        } catch (IOException ex) {
            return new BranchScmResult(
                    null,
                    "Error while making a temporary file for the commit message: " + ex.getMessage(),
                    null,
                    false);
        }

        Commandline cl = createCommandLine(repository, fileSet.getBasedir(), branch, messageFile, scmBranchParameters);

        CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer();

        CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer();

        if (logger.isInfoEnabled()) {
            logger.info("Executing: " + SvnCommandLineUtils.cryptPassword(cl));

            if (Os.isFamily(Os.FAMILY_WINDOWS)) {
                logger.info("Working directory: " + cl.getWorkingDirectory().getAbsolutePath());
            }
        }

        int exitCode;

        try {
            exitCode = SvnCommandLineUtils.execute(cl, stdout, stderr);
        } catch (CommandLineException ex) {
            throw new ScmException("Error while executing command.", ex);
        } finally {
            try {
                FileUtils.forceDelete(messageFile);
            } catch (IOException ex) {
                // ignore
            }
        }

        if (exitCode != 0) {
            return new BranchScmResult(cl.toString(), "The svn branch command failed.", stderr.getOutput(), false);
        }

        List<ScmFile> fileList = new ArrayList<>();

        List<File> files = null;

        try {
            files = FileUtils.getFiles(fileSet.getBasedir(), "**", "**/.svn/**", false);
        } catch (IOException e) {
            throw new ScmException("Error while executing command.", e);
        }

        for (File f : files) {
            fileList.add(new ScmFile(f.getPath(), ScmFileStatus.TAGGED));
        }

        return new BranchScmResult(cl.toString(), fileList);
    }