commit cb0df82ba81a8deb5743a885527542e5498a0490 Author: Thomas Kluyver Date: Thu Jun 26 17:12:02 2014 -0700 Initial commit (made in the IPython Qtconsole) diff --git a/bash_kernel.py b/bash_kernel.py new file mode 100644 index 0000000..c819563 --- /dev/null +++ b/bash_kernel.py @@ -0,0 +1,64 @@ +from IPython.kernel.zmq.kernelbase import Kernel +from pexpect import replwrap +from subprocess import check_output +import re + +version_pat = re.compile(r'version (\d+(\.\d+)+)') + +class BashKernel(Kernel): + implementation = 'bash_kernel' + implementation_version = '1.0' + language = 'bash' + @property + def language_version(self): + m = version_pat.search(self.banner) + return m.group(1) + + _banner = None + @property + def banner(self): + if self._banner is None: + self._banner = check_output(['bash', '--version']).decode('utf-8') + return self._banner + + def __init__(self, **kwargs): + Kernel.__init__(self, **kwargs) + self.bashwrapper = replwrap.bash() + + def do_execute(self, code, silent, store_history=True, user_expressions=None, + allow_stdin=False): + if not code.strip(): + return {'status': 'ok', 'execution_count': self.execution_count, + 'payloads': [], 'user_expressions': {}} + + interrupted = False + try: + output = self.bashwrapper.run_command(code.rstrip(), timeout=None) + except KeyboardInterrupt: + self.bashwrapper.child.sendintr() + interrupted = True + self.bashwrapper._expect_prompt() + output = self.bashwrapper.child.before + + if not silent: + stream_content = {'name': 'stdout', 'data':output} + self.send_response(self.iopub_socket, 'stream', stream_content) + + if interrupted: + return {'status': 'abort', 'execution_count': self.execution_count} + + try: + exitcode = int(self.run_command('echo $?').rstrip()) + except Exception: + exitcode = 1 + + if exitcode: + return {'status': 'error', 'execution_count': self.execution_count, + 'ename': '', 'evalue': str(exitcode), 'traceback': []} + else: + return {'status': 'ok', 'execution_count': self.execution_count, + 'payloads': [], 'user_expressions': {}} + +if __name__ == '__main__': + from IPython.kernel.zmq.kernelapp import IPKernelApp + IPKernelApp.launch_instance(kernel_class=BashKernel) diff --git a/kernelspec/kernel.json b/kernelspec/kernel.json new file mode 100644 index 0000000..e6da295 --- /dev/null +++ b/kernelspec/kernel.json @@ -0,0 +1,4 @@ +{"argv":["python3","-m","bash_kernel", "-f", "{connection_file}"], + "display_name":"Bash", + "language":"bash" +} diff --git a/setup.py b/setup.py new file mode 100644 index 0000000..2ff9238 --- /dev/null +++ b/setup.py @@ -0,0 +1,17 @@ +from distutils.core import setup +from distutils.command.install import install + +class install_with_kernelspec(install): + def run(self): + install.run(self) + from IPython.kernel.kernelspec import install_kernel_spec + install_kernel_spec('kernelspec', 'bash', replace=True) + +setup(name='bash_kernel', + version='0.1', + description='A bash kernel for IPython', + author='Thomas Kluyver', + author_email='thomas@kluyver.me.uk', + py_modules=['bash_kernel'], + cmdclass={'install': install_with_kernelspec} + ) \ No newline at end of file