dotfiles/.bash_functions at master · webcaptcha/dotfiles · GitHub

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#! /usr/bin/bash

## colored man pages
function man() {
    env \
        LESS_TERMCAP_mb=$'\e[01;31m' \
        LESS_TERMCAP_md=$'\e[01;31m' \
        LESS_TERMCAP_me=$'\e[0m' \
        LESS_TERMCAP_se=$'\e[0m' \
        LESS_TERMCAP_so=$'\e[01;44;33m' \
        LESS_TERMCAP_ue=$'\e[0m' \
        LESS_TERMCAP_us=$'\e[01;32m' \
            man "$@"
}


## Print man pages
function manp() { man -t "$@" | lpr -pPrinter; }


## Create pdf of man page - requires ghostscript and mimeinfo
function manpdf() { man -t "$@" | ps2pdf - /tmp/manpdf_$1.pdf && xdg-open /tmp/manpdf_$1.pdf ;}


## lock all sessions when inactive for 300 seconds if in tty
#export TMOUT=300
#function TRAPALRM() {
#    if [[ $(tty) != *pts* ]]; then
#        vlock
#    fi
#}


## h -- grep history
function h() {
    fc -l 1 -1 | sed -n "/$1/s/^ */!/p" | tail -n 50
}
alias h=' h'


## fortune message
#if [[ $(setopt | grep login) == "login" ]]; then
#    fortune ferengi_rules_of_acquisition
#    echo
#fi


## simple notes taking utility
function n() {
    local dir="$HOME/Bbox/Notes/"
    local files=( "$@" )
    # prepend $dir to each file
    files=( "${files[@]/#/$dir}" )
    ${EDITOR:-vim} -p "${files[@]}"
}

function nls() {
    find $HOME/Bbox/Notes/ -print0 | sort -z | xargs -0 ls -d --color=always | sed "1n; s|$HOME/Bbox/Notes/|    ./|g; s|\./.*/[^$]|    ./|g; s|\./||g"
    # sed: skip first line; replace top-level directory with './'; replace '\./.*/[^$]' with '    ./'; delete all occurences of '\./'
}

# TAB completion for notes
function _n() {
    local files=($HOME/Bbox/Notes/**/"$2"*)
    [[ -e ${files[0]} ]] && COMPREPLY=( "${files[@]##~/Bbox/Notes/}" )
}
complete -o default -F _n n


## frequently used pacman commands
function orphans() {
    if [[ ! -n $(pacman -Qdtt) ]]; then
        echo "no orphans to remove"
    else
        sudo pacman -Rnsc $(pacman -Qdttq)
    fi
}


## custom cd function
# implements 'autopushd'
# 'cd -' flips last visited dir (exactly what pushd without aruments does)
function cd() {
    if [[ $# -eq 0 ]]; then
        builtin pushd "$HOME"
    else
        # remove '--' from the parameters
        if [[ "$1" == "--" ]]; then
            set -- "${@:2:$#}"
        fi

        if [[ $# -eq 1 ]]; then
            if [[ "$1" == "-" ]]; then
                builtin pushd
            elif [[ -f "$1" ]]; then
                # auxiliary variable is necessary to handle spaces in the path
                local dir
                dir=$(dirname "$1")
                builtin pushd -- "$dir"
            else
                builtin pushd -- "$1"
            fi
        else
            echo "cd: Too many arguments"
        fi
    fi
}


## path synchronization for ranger
# (reference: /usr/share/doc/ranger/examples/bash_automatic_cd.sh)
function ranger {
    tempfile="$(mktemp -t ranger-cd.XXXXXX)"
    /usr/bin/ranger --choosedir="$tempfile" "${@:-$(pwd)}"
    if [[ -f "$tempfile" ]] && [[ "$(cat -- "$tempfile")" != "$(echo -n `pwd`)" ]]; then
        cd -- "$(cat "$tempfile")"
    fi
    rm -f -- "$tempfile"
}


## system upgrade
function syu {
    sudo pacman -Syu $@
    local ret=$?
    if [[ $ret -ne 0 ]]; then
        return $ret
    fi
    if [[ $(command -v checkservices) ]]; then
        sudo checkservices
    fi
    if [[ $(command -v rebuild-notify) ]] && [[ $(command -v expac) ]]; then
        rebuild-notify
    fi
}
alias suy='syu'