FileMagick - Tools for files manipulation

pip install filemagick

For example you can keep version string as "0.0.0" in source files and replace them to the real version at build time.

filemagick sub __init__.py \
    -p '__version__ = "0.0.0"' -r '__version__ = "0.1.0"'

We can use Python re lookbehind and lookahead assertion feature to make out command shorter:

filemagick sub __init__.py \
    -p '(?<=__version__ = ")0.0.0(?=")' -r '0.1.0'

Note we can use -i option to replace the file in place, or else just output the replaced content to stdout.

filemagick sub -i my_service.proto \
    -p 'version: "0.0.0"' -r 'version: "0.1.0"'

For more use cases see the test cases in the tests directory.