CheckIfGitExists checks if git command is available.

CopyDir recursively copies a directory tree, attempting to preserve permissions.

CopyFile copies the contents of the file named src to the file named by dst.

Errorf print a error with formatting (red).

FlutterChannels returns All valid flutter channels as string array.

return fvm home path check fvm home is valid or create new fvm home directory.

Infof print a information with formatting (green).

IsDirectory check if path exists and is a directory.

IsEmptyDir check if path exists and is a empty directory.

IsExecutable return true if path exists and executable.

IsFileExists checks if a file exists and is not a directory.

IsNotFound return true if path not exists.

IsSymlink check if path exists and is a symlink.

IsValidFlutterChannel return true if it's a valid Flutter channel.

IsValidFlutterVersion return true if it's a valid Flutter version\tag.

Colorize chnage the logger to support colors printing.

Printf print a message with formatting.

return temp dir if not exits, dir will be created else this call exit(1).

Verbosef print a verbose level information with formatting (cyan).

return versions dir if not exits, dir will be created else this call exit(1).

Warnf print a warning with formatting (yellow).

return current working dir this call exit(1) if failed.