private String execute()

in src/main/java/pemja/utils/CommonUtils.java [168:192]

• 23 lines of code
• 4 McCabe index (conditional complexity)

    private String execute(String[] commands) throws IOException {
        ProcessBuilder pb = new ProcessBuilder(commands);
        pb.redirectErrorStream(true);
        Process p = pb.start();
        InputStream in = new BufferedInputStream(p.getInputStream());
        StringBuilder out = new StringBuilder();
        String s;
        try (BufferedReader br = new BufferedReader(new InputStreamReader(in))) {
            while ((s = br.readLine()) != null) {
                out.append(s).append("\n");
            }
        }
        try {
            if (p.waitFor() != 0) {
                throw new IOException(
                        String.format(
                                "Failed to execute the command: %s\noutput: %s",
                                String.join(" ", commands), out));
            }
        } catch (InterruptedException e) {
            // Ignored. The subprocess is dead after "br.readLine()" returns null, so the call of
            // "waitFor" should return intermediately.
        }
        return out.toString();
    }