switch_file_from_project.py

"""
switch_file_from_project.py

Place in any folder under %APPDATA%\Sublime Text 3\Packages, then add a
line to User Keybindings like so:

{ "keys": ["alt+o"], "command": "switch_file_from_project" }

A quick-and-dirty command for Sublime Text 3. Based on the built-in command
switch_project, but rather than looking for a file in the current file's
directory, this version searches recursively through all folders in the
project. Only supports switching between .h and .cpp, unlike
switch_project which supports multiple extensions.
"""

import sublime, sublime_plugin
import os
import platform

def compare_file_names(x, y):
    if platform.system() == 'Windows' or platform.system() == 'Darwin':
        return x.lower() == y.lower()
    else:
        return x == y

class SwitchFileFromProjectCommand(sublime_plugin.WindowCommand):
    
    def run(self, extensions=[]):
        
        if not self.window.active_view():
            return

        current_filepath = self.window.active_view().file_name()
        if not current_filepath:
            return

        current_filename = os.path.basename(current_filepath)
        search_filename = None
        if current_filepath.lower().endswith('.h'):
            search_filename = current_filename[:-2] + '.cpp'
        elif current_filepath.lower().endswith('.cpp'):
            search_filename = current_filename[:-4] + '.h'
        if not search_filename:
            return

        if not self.window.project_data() or 'folders' not in self.window.project_data():
            return

        for search_directory in [folder['path'] for folder in self.window.project_data()['folders']]:
            for root, dirs, files in os.walk(search_directory):
                for candidate_filename in files:
                    if compare_file_names(search_filename, candidate_filename):
                        self.window.open_file(os.path.join(root, candidate_filename))
                        break