llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-lldb Author: Dave Lee (kastiglione) <details> <summary>Changes</summary> --- Full diff: https://github.com/llvm/llvm-project/pull/128571.diff 1 Files Affected: - (added) lldb/examples/python/fzf_history.py (+99) ``````````diff diff --git a/lldb/examples/python/fzf_history.py b/lldb/examples/python/fzf_history.py new file mode 100644 index 0000000000000..4647a3532b0df --- /dev/null +++ b/lldb/examples/python/fzf_history.py @@ -0,0 +1,99 @@ +import os +import re +import sys +import subprocess + +import lldb + + +@lldb.command() +def fzf_history(debugger, cmdstr, ctx, result, _): + if sys.platform != 'darwin': + result.SetError("fzf_history supports macOS only") + return + + # Capture the current pasteboard contents to restore after overwriting. + paste_snapshot = subprocess.run("pbpaste", text=True, capture_output=True).stdout + + # On enter, copy the selected history entry into the pasteboard. + fzf_command = ( + "fzf", + "--no-sort", + f"--query={cmdstr}", + "--bind=enter:execute-silent(echo -n {} | pbcopy)+close", + ) + + history_file = os.path.expanduser("~/.lldb/lldb-widehistory") + if not os.path.exists(history_file): + result.SetError("history file does not exist") + return + + history_commands = _load_history(history_file) + fzf_input = "\n".join(history_commands) + completed = subprocess.run(fzf_command, input=fzf_input, text=True) + # 130 is used for CTRL-C or ESC. + if completed.returncode not in (0, 130): + result.SetError(f"fzf failed: {completed.stderr}") + return + + # Get the user's selected history entry. + selected_command = subprocess.run("pbpaste", text=True, capture_output=True).stdout + if selected_command == paste_snapshot: + # Nothing was selected, no cleanup needed. + return + + _handle_command(debugger, selected_command) + + # Restore the pasteboard's contents. + subprocess.run("pbcopy", input=paste_snapshot, text=True) + + +def _handle_command(debugger, command): + """Try pasting the command, and failing that, run it directly.""" + if not command: + return + + # Use applescript to paste the selected result into lldb's console. + paste_command = ( + "osascript", + "-e", + 'tell application "System Events" to keystroke "v" using command down', + ) + completed = subprocess.run(paste_command, capture_output=True) + + if completed.returncode != 0: + # The above applescript requires the "control your computer" permission. + # Settings > Private & Security > Accessibility + # If not enabled, fallback to running the command. + debugger.HandleCommand(command) + + +def _load_history(history_file): + """Load, decode, and parse an lldb history file.""" + with open(history_file) as f: + history_contents = f.read() + + history_decoded = re.sub(r"\\0([0-7][0-7])", _decode_char, history_contents) + history_lines = history_decoded.splitlines() + + # Skip the header line (_HiStOrY_V2_) + del history_lines[0] + # Reverse to show latest first. + history_lines.reverse() + + history_commands = [] + history_seen = set() + for line in history_lines: + line = line.strip() + # Skip empty lines, single character commands, and duplicates. + if line and len(line) > 1 and line not in history_seen: + history_commands.append(line) + history_seen.add(line) + + return history_commands + + +def _decode_char(match): + """Decode octal strings ('\0NN') into a single character string.""" + code = int(match.group(1), base=8) + return chr(code) `````````` </details> https://github.com/llvm/llvm-project/pull/128571 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
