Github GitHub - tusharsadhwani/zxpy: Shell scripts made simple 🐚
source link: https://github.com/tusharsadhwani/zxpy
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Shell scripts made simple
Inspired by Google's zx, but made much simpler and more accessible using Python.
Rationale
Bash is cool, and it's extremely powerful when paired with linux coreutils and pipes. But apart from that, it's a whole another language to learn, and has a (comparatively) unintuitive syntax for things like conditionals and loops.
zxpy
aims to supercharge bash by allowing you to write scripts in Python, but with native support for bash commands and pipes:
#! /usr/bin/env zxpy todo_comments = ~"git grep -n TODO" for todo in todo_comments.splitlines(): filename, lineno, code = todo.split(':', 2) *_, comment = code.partition('TODO') print(f"{filename:<40} on line {lineno:<4}: {comment.lstrip(': ')}")
Running this, we get:
$ ./todo_check.py README.md on line 154 : move this content somewhere more sensible. instachat/lib/models/message.dart on line 7 : rename to uuid instachat/lib/models/update.dart on line 13 : make int instachat/lib/services/chat_service.dart on line 211 : error handling server/api/api.go on line 94 : move these to /chat/@:address server/api/user.go on line 80 : check for errors instead of relying on zero value
Installation
pip install zxpy
Example
Make a file script.py
(The name and extension can be anything):
#! /usr/bin/env zxpy ~'echo Hello world!' file_count = ~'ls -1 | wc -l' print("file count is:", file_count)
And then run it:
$ chmod +x ./script.py $ ./script.py Hello world! file count is: 3
Run
>>> help('zxpy')
in Python REPL to find out more ways to use zxpy.
A more involved example: run_all_tests.py
#! /usr/bin/env zxpy test_files = (~"find -name '*_test\.py'").splitlines() for filename in test_files: try: print(f'Running {filename:.<50}', end='') output = ~f'python {filename}' # variables in your shell commands :D assert output == '' print('Test passed!') except: print(f'Test failed.')
Output:
$ ./run_all_tests.py Running ./tests/python_version_test.py....................Test failed. Running ./tests/platform_test.py..........................Test passed! Running ./tests/imports_test.py...........................Test passed!
Examples are all in the examples folder.
Interactive mode
$ zxpy zxpy shell Python 3.8.5 (default, Jan 27 2021, 15:41:15) [GCC 9.3.0] >>> ~"ls | grep '\.py'" __main__.py setup.py zx.py >>>
Also works with
path/to/python -m zx
It can also be used to start a zxpy session in an already running REPL. Simply do:
>>> import zx; zx.start()
and zxpy should be enabled in the existing session.
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