tools: add cli for hardlinks

services/tools/cli/base.py

@@ -11,6 +11,9 @@ class Colors:
     WHITE = "\033[37m"
 
 class BaseCli:
+    def __init__(self, debug=False):
+        self.debug_enabled=debug
+
     def info(self, message):
         print(f'[{Colors.GREEN}INFO{Colors.RESET}] {message}')
 
@@ -19,4 +22,9 @@ class BaseCli:
 
     def error(self, message, exit_code=1):
         print(f'[{Colors.RED}ERROR{Colors.RESET}] {message}')
-        sys.exit(exit_code)
+        sys.exit(exit_code)
+        
+    def debug(self, message):
+        if not self.debug_enabled:
+            return
+        print(f'[{Colors.BLUE}DEBUG{Colors.RESET}] {message}')

services/tools/cli/create_hardlinks.py

@@ -0,0 +1,118 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import argparse
+from argparse import ArgumentParser
+
+from args_utils import dir_arg_type
+from base import BaseCli
+
+CLI_DESCRIPTION='''
+Create hard links of files from source to destination.
+'''
+
+class CreateHardlinksCli(BaseCli):
+
+    def configure_args(self, parser: ArgumentParser):
+        parser.add_argument(
+            '-s',
+            '--source',
+            required=True,
+            help="Source folder"
+        )
+        parser.add_argument(
+            '-d', 
+            '--destination', 
+            required=True, 
+            help="Destination folder",
+        )
+        parser.add_argument(
+            '-v',
+            '--verbose',
+            help="Increase verbosity",
+            default=False,
+            action='store_true'
+        )
+        
+    def process_args(self, parser: ArgumentParser):
+        args = parser.parse_args()
+        return args
+    
+    def __init__(self):
+        parser = ArgumentParser(description=CLI_DESCRIPTION)
+        self.configure_args(parser)
+        self.args = self.process_args(parser)
+        super().__init__(debug=self.args.verbose)
+        
+    def __create_file_ln__(self, src, dest):
+        if os.path.exists(dest):
+            self.debug(f"Hard link already exists: {dest} -> {src}")
+        else:
+            os.link(src, dest)
+            self.debug(f"Created hard link: {dest} -> {src}")        
+
+    def create_hardlinks(self, src, dest):
+        if not os.path.exists(dest):
+            os.makedirs(dest)
+            self.info(f"Created destination directory: {dest}")
+        
+        if os.path.isfile(src):
+            self.info('Source is a file. Hardlinking and quitting.')
+            dest_file = os.path.join(dest, os.path.basename(src))
+            self.__create_file_ln__(src, dest_file)
+            return
+
+        for dirpath, dirnames, filenames in os.walk(src):
+            relative_path = os.path.relpath(dirpath, src)
+            dest_dir = os.path.join(dest, relative_path)
+            if not os.path.exists(dest_dir):
+                os.makedirs(dest_dir)
+                self.debug(f"Created directory: {dest_dir}")
+
+            for filename in filenames:
+                src_file = os.path.join(dirpath, filename)
+                dest_file = os.path.join(dest_dir, filename)
+                self.__create_file_ln__(src_file, dest_file)
+
+    
+    def print_tree(self, directory, level=0):
+        """Print the directory tree."""
+        if level == 0:
+            self.info('Hardlinked Result:')
+        indent = " " * (level * 4)
+        print(f"{indent}{os.path.basename(directory)}/")
+        for item in os.listdir(directory):
+            path = os.path.join(directory, item)
+            if os.path.isdir(path):
+                self.print_tree(path, level + 1)
+            else:
+                print(f"{indent}    {item}")
+    
+    
+    def count_files_in_directory(self, directory):
+        if not os.path.isdir(directory):
+            self.warning(f"Can't count files in {directory}, because it is a file")
+            return 0
+        total_files = 0
+        for dirpath, dirnames, filenames in os.walk(directory):
+            total_files += len(filenames)
+        return total_files
+                    
+    def start(self):
+        self.create_hardlinks(
+            self.args.source,
+            self.args.destination
+        )
+        self.print_tree(self.args.destination)
+        src_files = self.count_files_in_directory(self.args.source)
+        dest_files = self.count_files_in_directory(self.args.destination)
+        self.info(f'Files in source direcotry: {src_files}')
+        self.info(f'Files in destination directory: {dest_files}')
+
+def main():
+    cli = CreateHardlinksCli()
+    cli.start()
+
+if __name__ == "__main__":
+    main()