shellScriptSplitLines function

Implementation

List<String> shellScriptSplitLines(String script, {bool? skipComments}) {
  skipComments ??= false;
  var commands = <String>[];
  // non null when previous line ended with ^ or \
  String? currentCommand;
  for (var line in LineSplitter.split(script)) {
    line = line.trim();

    void addAndClearCurrent(String command) {
      commands.add(command);
      currentCommand = null;
    }

    if (line.isNotEmpty) {
      if (shellScriptLineIsComment(line)) {
        if (!skipComments) {
          commands.add(line);
        }
      } else {
        // append to previous
        if (currentCommand != null) {
          line = '$currentCommand $line';
        }
        if (isLineToBeContinued(line)) {
          // remove ending character
          currentCommand = line.substring(0, line.length - 1).trim();
        } else {
          addAndClearCurrent(line);
        }
      }
    } else {
      // terminate current
      if (currentCommand != null) {
        addAndClearCurrent(currentCommand!);
      }
    }
  }
  return commands;
}