Module log 

ROS 2 log file discovery and tailing.

Functions

find_log_by_node

Locates a log file for the given node name by searching filenames, PID, and recent run directories.

find_log_by_pid

Finds a log file in the ROS 2 log directory whose filename contains the given PID.

find_log_for_running_node

Finds a log file for a currently running node, preferring PID-based lookup over name-based.

find_node_pid

Returns the PID of a running ROS 2 node by searching process arguments with pgrep.

read_tail

Reads the last max_lines lines from the file at path.

ros2_log_dir

Returns the ROS 2 log directory, checking ROS_LOG_DIR, ROS_HOME, and ~/.ros/log.