61 lines
2.4 KiB
Bash
61 lines
2.4 KiB
Bash
#!/bin/bash
|
|
|
|
if ( ! which mcfly &> /dev/null ); then return; fi
|
|
|
|
# Avoid loading this file more than once
|
|
if [[ "$__MCFLY_LOADED" == "loaded" ]]; then
|
|
return 0
|
|
fi
|
|
|
|
__MCFLY_LOADED="loaded"
|
|
export MCFLY_SESSION_ID=$(cat /dev/urandom | env LC_ALL=C tr -dc 'a-zA-Z0-9' | fold -w 24 | head -n 1)
|
|
export MCFLY_HISTORY=$(mktemp -t mcfly.XXXX)
|
|
export HISTFILE="${HISTFILE:-$HOME/.bash_history}"
|
|
|
|
if [[ -f "$HISTFILE" ]];
|
|
then
|
|
tail -n100 "${HISTFILE}" >| ${MCFLY_HISTORY}
|
|
else
|
|
printf "Welcome to McFly\n" >| ${MCFLY_HISTORY}
|
|
fi
|
|
|
|
# Ignore commands with a leading space
|
|
#export HISTCONTROL="ignorespace"
|
|
|
|
# Append new history items to .bash_history
|
|
shopt -s histappend
|
|
|
|
# Setup a function to be used by $PROMPT_COMMAND.
|
|
function mcfly_prompt_command {
|
|
local exit_code=$? # Record exit status of previous command.
|
|
history -a ${MCFLY_HISTORY} # Append history to $MCFLY_HISTORY.
|
|
# Run mcfly with the saved code. It will:
|
|
# * append commands to $HISTFILE, (~/.bash_history by default)
|
|
# for backwards compatibility and to load in new terminal sessions;
|
|
# * find the text of the last command in $MCFLY_HISTORY and save it to the database.
|
|
mcfly add --exit ${exit_code} --append-to-histfile
|
|
# Clear the in-memory history and reload it from $MCFLY_HISTORY
|
|
# (to remove instances of '#mcfly: ' from the local session history).
|
|
history -cr ${MCFLY_HISTORY}
|
|
return ${exit_code} # Restore the original exit code by returning it.
|
|
}
|
|
|
|
# Set $PROMPT_COMMAND run mcfly_prompt_command and then any existing $PROMPT_COMMAND.
|
|
PROMPT_COMMAND="mcfly_prompt_command;$PROMPT_COMMAND"
|
|
|
|
# If this is an interactive shell, take ownership of ctrl-r.
|
|
# The logic here is:
|
|
# 1. Jump to the beginning of the edit buffer, add 'mcfly: ', and comment out the current line. We comment out the line
|
|
# to ensure that all possible special characters, including backticks, are ignored. This commented out line will
|
|
# end up as the most recent entry in the $MCFLY_HISTORY file.
|
|
# 2. Type "mcfly search" and then run the command. McFly will pull the last line from the $MCFLY_HISTORY file,
|
|
# which should be the commented-out search from step #1. It will then remove that line from the history file and
|
|
# render the search UI pre-filled with it.
|
|
if [[ $- =~ .*i.* ]]; then
|
|
if set -o | grep "vi " | grep -q on; then
|
|
bind "'\C-r': '\e0i#mcfly: \e\C-j mcfly search\C-j'"
|
|
else
|
|
bind "'\C-r': '\C-amcfly: \e# mcfly search\C-j'"
|
|
fi
|
|
fi
|