install.fairie/dotfiles/.local/share/bash-completion/completions/mcfly.bash

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#!/bin/bash
# Ensure stdin is a tty
# Avoid loading this file more than once
if [[ -t 0 ]] && [[ "$__MCFLY_LOADED" != "loaded" ]]; then
__MCFLY_LOADED="loaded"
# Ensure HISTFILE exists.
export HISTFILE="${HISTFILE:-$HOME/.bash_history}"
if [[ ! -r "${HISTFILE}" ]]; then
echo "McFly: ${HISTFILE} does not exist or is not readable. Please fix this or set HISTFILE to something else before using McFly."
return 1
fi
# MCFLY_SESSION_ID is used by McFly internally to keep track of the commands from a particular terminal session.
MCFLY_SESSION_ID="$(command dd if=/dev/urandom bs=256 count=1 2> /dev/null | LC_ALL=C command tr -dc 'a-zA-Z0-9' | command head -c 24)"
export MCFLY_SESSION_ID
# Find the binary
MCFLY_PATH=${MCFLY_PATH:-$(command -v mcfly)}
if [ -z "$MCFLY_PATH" ]; then
echo "Cannot find the mcfly binary, please make sure that mcfly is in your path before sourcing mcfly.bash."
return 1
fi
# Ignore commands with a leading space
export HISTCONTROL="${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.
# Populate McFly's temporary, per-session history file from recent commands in the shell's primary HISTFILE.
if [[ ! -f "${MCFLY_HISTORY}" ]]; then
MCFLY_HISTORY=$(mktemp -t mcfly.XXXXXXXX)
export MCFLY_HISTORY
command tail -n100 "${HISTFILE}" >| "${MCFLY_HISTORY}"
fi
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_PATH 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, preserving any existing $PROMPT_COMMAND.
if [ -z "$PROMPT_COMMAND" ]
then
PROMPT_COMMAND="mcfly_prompt_command"
elif [[ ! "$PROMPT_COMMAND" =~ "mcfly_prompt_command" ]]
then
PROMPT_COMMAND="mcfly_prompt_command;${PROMPT_COMMAND#;}"
fi
# If this is an interactive shell, take ownership of ctrl-r.
if [[ $- =~ .*i.* ]]; then
if [[ ${BASH_VERSINFO[0]} -ge 4 ]]; then
# shellcheck disable=SC2016
bind -x '"\C-r": "echo \#mcfly: ${READLINE_LINE[@]} >> $MCFLY_HISTORY ; READLINE_LINE= ; mcfly search"'
else
# 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 set -o | grep "vi " | grep -q on; then
bind "'\C-r': '\e0i#mcfly: \e\C-m mcfly search\C-m'"
else
bind "'\C-r': '\C-amcfly: \e# mcfly search\C-m'"
fi
fi
fi
fi