dotfiles/home-manager/modules/bash/bashrc

#!/usr/bin/env bash

# SPDX-FileCopyrightText: 2022 Richard Brežák <richard@brezak.sk>
#
# SPDX-License-Identifier: LGPL-3.0-or-later

[[ -e /etc/profile.d/nix.sh ]] && . /etc/profile.d/nix.sh

# If not running interactively, don't do anything
[[ $- != *i* ]] && return

[[ $DISPLAY ]] && shopt -s checkwinsize

[ -r /usr/share/bash-completion/bash_completion   ] && . /usr/share/bash-completion/bash_completion

## Enable color on grep
alias grep='grep --color=auto'

if [ -z "${SHLVL_INIT+x}" ]; then
    export SHLVL_INIT=1 SHLVL=1
fi


if [ "$SHLVL" = 1 ]; then
    export PS1="\u@\[\e[37m\]\h\[\e[m\]:\[\e[32m\]\w\[\e[m\]\[\e[31m\]\\$\[\e[m\] "
else
    export PS1="$SHLVL: \u@\[\e[37m\]\h\[\e[m\]:\[\e[32m\]\w\[\e[m\]\[\e[31m\]\\$\[\e[m\] "
fi

emacsclient() {
    if [[ -e "$HOME/.ssh/emacs-server" ]] && \
           nc -Uz "$HOME/.ssh/emacs-server" >/dev/null 2>&1 && \
           [[ ! -z ${INSIDE_EMACS+x} ]] ; then
        params=()
        sudo=0
        nowait=0

        host=$(echo $SSH_CONNECTION | cut -d' ' -f3)
        port=$(echo $SSH_CONNECTION | cut -d' ' -f4)

        for p in "${@}"; do
            if [[ "${p}" == "-s" || "${p}" == "--sudo" ]]; then
                sudo=1
            elif [[ "${p}" == "-n" || "${p}" == "--no-wait" ]]; then
                params+=( "-nowait" )
            else
                if [[ ${sudo} -eq 1 ]]; then
                    params+=( "-file /ssh:${USER}@${host}#${port}|sudo::"$(realpath -m "${p}") )
                else
                    params+=( "-file /ssh:${USER}@${host}#${port}:"$(realpath "${p}") )
                fi
            fi
        done

        if [[ ${nowait} -eq 0 ]] ; then
            printf 'Waiting for Emacs...\n'
        fi

        echo "${params[@]}" | nc -U "$HOME/.ssh/emacs-server" >/dev/null 2>&1
    else
        sudo=0
        args=()
        for p in "${@}"; do
            if [[ "${p}" == "-s" || "${p}" == "--sudo" ]]; then
                sudo=1
            else
                args+=( "${p}" )
            fi
        done

        if [[ ${sudo} -eq 1 ]]; then
            echo env emacsclient "/sudo::${args[0]}" "${args[@]:1}"
            env emacsclient "/sudo::${args[0]}" "${args[@]:1}"
        else
            env emacsclient "${@}"
        fi
    fi
}

alias e='emacsclient'
alias E='emacsclient -s'


## Set prompt

export EDITOR="emacsclient"
export BROWSER="librewolf"

## Clear scrollback for vterm
if [[ "$INSIDE_EMACS" = 'vterm' ]]; then
    function clear(){
        vterm_printf "51;Evterm-clear-scrollback";
        tput clear;
    }
fi

if [[ "$INSIDE_EMACS" = 'vterm' ]] \
       && [[ -n ${EMACS_VTERM_PATH} ]] \
       && [[ -f ${EMACS_VTERM_PATH}/etc/emacs-vterm-bash.sh ]]; then
    source ${EMACS_VTERM_PATH}/etc/emacs-vterm-bash.sh
fi

eval "$(direnv hook bash)"

alias zlist="zfs list -r -o name,used,avail,refer,compression,compressratio,recordsize,snapdir,sharenfs,mountpoint"

function loadenv()
{
    function passhead()
    {
        pass $1 | tail -n +2
    }

    export \
        $(passhead Infrastructure/Nomad) \
        $(passhead Infrastructure/Vault) \
        $(passhead Infrastructure/Consul) \
        $(passhead Infrastructure/Influx) \
        $(passhead Infrastructure/HCloud)
}

function yaml2nix()
{
    input_file="$1"
    output_file="$2"

    if [ "${input_file}" = "${output_file}" ] ; then
        remarshal -if yaml -of json -i "${input_file}" -o /dev/stdout | nix eval --impure --expr 'builtins.fromJSON (builtins.readFile "/dev/stdin")' > "${input_file}.tmp"
        mv "${input_file}.tmp" "${output_file}"
    else
        remarshal -if yaml -of json -i "${input_file}" -o /dev/stdout | nix eval --impure --expr 'builtins.fromJSON (builtins.readFile "/dev/stdin")' > "${output_file}"
    fi

    nixfmt "${output_file}"
}

function zpool_warning()
{
    if ! ( echo "$@" | grep -v create ) ; then
        if [[ "$ZFS_I_REMEMBERED_TO_DISABLE_BLOCK_CLONING" == "1" ]] ; then
            echo "I trust you, carry on! But be careful to disable block cloning..."
            env zpool "$@"
        else
            echo "Disable block cloning or you will have a very bad time!"
        fi
    else
        env zpool "$@"
    fi
}

alias zpool="zpool_warning"

function genpass() {
    length="$1"

    < /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c "$length" ; echo
}