bashrc

#!/bin/env bash

# Program packages:
# sudo pacman -Syu --needed bash-completion fzf git tmux

case $- in
*i*)
    # https://wiki.archlinux.org/title/Bash#Common_programs_and_options
    if [ -f /usr/share/bash-completion/bash_completion ]; then
        # shellcheck source=/dev/null
        . /usr/share/bash-completion/bash_completion
    fi

    # https://wiki.archlinux.org/title/Fzf#Bash
    if [ -f /usr/share/fzf/completion.bash ]; then
        # shellcheck source=/dev/null
        . /usr/share/fzf/completion.bash
    fi
    if [ -f /usr/share/fzf/key-bindings.bash ]; then
        # shellcheck source=/dev/null
        . /usr/share/fzf/key-bindings.bash
    fi

    # https://wiki.archlinux.org/title/Git#Bash_completion
    if [ -f /usr/share/git/completion/git-completion.bash ]; then
        # shellcheck source=/dev/null
        . /usr/share/git/completion/git-completion.bash
    fi

    #https://wiki.archlinux.org/title/Git#Git_prompt
    if [ -f /usr/share/git/completion/git-prompt.sh ]; then
        export GIT_PS1_SHOWDIRTYSTATE=on      # any nonempty value. + for staged, * if unstaged
        export GIT_PS1_SHOWSTASHSTATE=on      # any nonempty value. $ if something is stashed
        export GIT_PS1_SHOWUNTRACKEDFILES=on  # any nonempty value. % if there are untracked files
        export GIT_PS1_SHOWUPSTREAM="verbose" # auto: <, >, <> behind, ahead, or diverged from upstream
        # or a space-delimited list of the following options (verbose .. .. ..):
        # verbose  show number of commits ahead/behind (+/-) upstream
        # name     if verbose, then also show the upstream abbrev name
        # legacy   don't use the '--count' option available in recent versions of git-rev-list
        # git always compare HEAD to @{upstream}
        # svn always compare HEAD to your SVN upstream
        export GIT_PS1_STATESEPARATOR=" "       # separator between branch name and state symbols
        export GIT_PS1_DESCRIBE_STYLE="default" # show commit relative to tag or branch, when detached HEAD
        export GIT_PS1_SHOWCOLORHINTS=on        # any nonempty value. display in color
        # shellcheck source=/dev/null
        . /usr/share/git/completion/git-prompt.sh
    fi

    PS1='\n \
$([ -n "$SSH_CLIENT" ] && echo "\[\033[00;34m\]SSH\[\033[00;37m\]")\
$(__git_ps1 " (%s)") \
\[\033[00;3$([[ $(stat --printf="%U%a" "$(pwd)") == *$(whoami)7* ]] && echo 2 || echo 1)m\]\w\[\033[00m\] \
$ '

    if [ -f ~/.bash_aliases ]; then
        # shellcheck source=/dev/null
        . ~/.bash_aliases
    fi

    # https://wiki.archlinux.org/title/bash#History
    ## Search command in bash history
    bind '"\e[A": history-search-backward'
    bind '"\e[B": history-search-forward'
    ## Don't duplicate lines in history file and don't save commands with starting space
    export HISTCONTROL="erasedups:ignorespace"

    # https://wiki.archlinux.org/title/bash#Auto_%22cd%22_when_entering_just_a_path
    ## Type path and change directory without cd command
    shopt -s autocd

    # https://wiki.archlinux.org/title/bash#Line_wrap_on_window_resize
    ## check the window size after each command and update values for columns
    shopt -s checkwinsize

    # https://wiki.archlinux.org/title/Systemd/Journal#Filtering_output
    # shellcheck disable=SC2034
    SYSTEMD_LESS=FRXMK

    # https://wiki.archlinux.org/title/Bash/Prompt_customization#Colors
    ## Some main colors for scripts
    red='\033[0;31m'
    yellow='\033[1;33m'
    green='\033[0;32m'
    blue='\033[0;34m'
    nc='\033[0m'

    ## Adding date and time of execution in bash history
    HISTTIMEFORMAT=$(echo -e "${blue}%F %T ${nc}")
    export HISTTIMEFORMAT

    ## Quick server status for SSH conection
    if [ -n "$SSH_CLIENT" ] && [ -z "$TMUX" ]; then
        echo -ne "\n"
        uptime
        #[ `systemctl list-units --failed | grep "listed" | cut -d" " -f1` -ne 0 ] && echo -e "\n${red} $(systemctl list-units --failed -q)${nc}"
        [ "$(who | grep pts | grep -cv 'tmux')" -ne 1 ] && echo -e "\n${yellow} Login warning:\n$(who | sed 's/^/ /')${nc}"
        # https://wiki.archlinux.org/title/Pacman/Pacnew_and_Pacsave#.pacnew
        PACNEWCOUNT=$(find /etc -name '*.pacnew' 2>/dev/null | wc -l)
        [ "$PACNEWCOUNT" -ne 0 ] && echo -e "\n Pacnew files: $PACNEWCOUNT update""$([ "$PACNEWCOUNT" -ne 1 ] && echo -n 's')"" remaining"
    fi

    #INSTANCE PROJECT SCRIPTS:

    [ "$(systemctl list-units --failed | grep "listed" | cut -d" " -f1)" -ne 0 ] && echo -e "\n${red} $(systemctl list-units --failed -q)${nc}"
    [ "$(systemctl list-units --user --failed | grep "listed" | cut -d" " -f1)" -ne 0 ] && echo -e "\n${red} $(systemctl list-units --user --failed -q)${nc}"

    if [ -n "$SSH_CLIENT" ] && [ -z "$TMUX" ]; then
        if [ -f /var/tmp/updpackages.state ] && [ "$(pacman -Qu | grep -cv "\[ignored\]")" -ne 0 ]; then
            echo -e "\n${yellow} Available updates:\n$(sed 's/<[^>]*>//g;s/^/ /' </var/tmp/updpackages.state | tail -n+2)${nc}"
        else
            echo -e "\n${green} System is up-to-date${nc}"
        fi

        if [ -z "$PATHINSTANCE" ]; then
            echo "Please set $PATHINSTANCE env variable in /etc/profile.d/instance.sh!"
        fi

        if [ -f "$PATHINSTANCE"/scripts/age.sh ]; then
            echo -ne "\n "
            "$PATHINSTANCE"/scripts/age.sh
        fi

        if [ -f "$PATHINSTANCE"/scripts/logger.sh ]; then
            echo -ne "\n"
            "$PATHINSTANCE"/scripts/logger.sh
        fi

        if [ -f "$PATHINSTANCE"/scripts/cheatsheet.sh ]; then
            # Show a cheat sheet on CTRL+h press
            # shellcheck disable=SC2016
            bind -x '"\C-h": "$PATHINSTANCE/scripts/cheatsheet.sh"'
        fi
    fi

    # Check if the tmux session exists, discarding output (zero for success, non-zero for failure)
    if [ -n "$SSH_CLIENT" ]; then
        if tmux has-session -t 0 &>/dev/null && [ -z "$TMUX" ]; then
            echo -ne "\n${yellow}Attaching to an existing tmux session"
            for i in . . .; do
                echo -n $i
                sleep 1
            done
            echo -e "${nc}"
            tmux attach-session -t 0
        fi
    fi

    if [ "$VSCODE_INJECTION" = "1" ]; then
      CODE_PATH="$(which code)"
      if [ -n "$CODE_PATH" ]; then
        export EDITOR="$CODE_PATH --wait"
      fi
    fi
    ;;
esac