This program will log stdin/stdout/stderr of a process. This might be useful for debugging purposes. stream_logger tries to propagate all stdin/stderr/stdout, as is the exit code.

$ ./stream_logger --help
Run and log process.

stream_logger [--name_prefix PREFIX] -- PROGRAM [ARG ...]

Generic options:
  --help                   Output this help message
  --name_prefix arg (=log) Output name prefix

$ cat << EOF | ./stream_logger -- m4
define(a,4)dnl
a
EOF

will print:

4

to the stdout.

Furthermore, log_args_000, log_stdin_000, log_stdout_000 and log_stderr_000 will be created.

Some programs will not finish immediately when calling its exit function. e.g. Python will continue parsing stdin until EOF.

$ cat << EOF | ./stream_logger -- python
print(4)
import sys
sys.exit(3)
# Code after sys.exit will be parsed as well, but not executed
print(40)
EOF

• C++14 compiler
• Boost (asio, process, program_options)