CodeCaser

A simple Ruby command line utility that converts files from camelCase to snake_case and vice-versa.

To install:

$ gem install code_caser

$ code_caser
Commands:
  code_caser help [COMMAND]        # Describe available commands or one specific command
  code_caser to_camel --path=PATH  # converts files in PATH from snake_case to camelCase.
  code_caser to_snake --path=PATH  # converts files in PATH from camelCase to snake_case.

To use, pass in the path to the file or folder:

$ code_caser to_camel --path=/folder/subfolder/example_file.js

Passing a folder will convert all files in that folder (non-recursive):

$ code_caser to_camel --path=/folder/subfolder

code_caser will happily convert files in any directory with the required permissions, so exercise caution when passing in a directory! You will be presented a confirmation dialog before any files are converted.

You may also pass in a globbed directory to convert only files that match a given pattern:

$ code_caser to_camel --path=/folder/subfolder/*.js

If you have a mix of camelCase and snake_case names, you can use the analyze subcommand to determine if converting would potentially cause overlap with any existing names.

$ code_caser analyze to_camel --path=/folder/subfolder/example_file.js --verbose

This can help you avoid introducing bugs that would arise from using names that already exist in your code.

Use the --verbose flag to print any changes made to each file to the terminal.

By default, backup copies of each file converted will be saved to a timestamped backup folder in the --path directory. You can prevent backups from being created by passing in the --no-save flag.

code_caser is available under the MIT License.