Bash theme

theme.sh

# Colours - 38;2;r;g;bm - true colour (48 for bg)
colour_end=$'\[\E[0m\]'
colour_green=$'\[\E[0;2;38;2;112;156;52m\]'
colour_bold_green=$'\[\E[0;1;38;2;112;156;52m\]'
colour_blue=$'\[\E[0;2;38;2;82;148;226m\]'
colour_bold_blue=$'\[\E[0;1;38;2;82;148;226m\]'
colour_bold_orange=$'\[\E[0;1;38;2;210;133;57m\]'
colour_bold_yellow=$'\[\E[0;1;38;2;170;143;57m\]'
colour_red=$'\[\E[0;2;38;2;170;75;57m\]'
colour_bold_red=$'\[\E[0;1;38;2;170;75;57m\]'
colour_pink=$'\[\E[0;2;38;2;204;82;243m\]'

exit_code="$?"

_git_prompt() {
    PS1GIT=""

    # if [[ ! -f ".git/HEAD" ]]; then
    #     return
    # fi
    # local branch
    # { read -r branch; } < .git/HEAD
    # if [[ -n $branch ]]; then
        # PS1GIT="$colour_pink ${branch#ref: refs\/heads\/}$colour_end"
    # fi

    local branch
    branch=$(git symbolic-ref HEAD 2>/dev/null)
    if [[ -n $branch ]]; then
        PS1GIT="$colour_pink ${branch#refs\/heads\/}$colour_end"
    fi
}

_error_prompt() {
    PS1ERROR=""

    if [[ "${exit_code}" -ne "0" ]]; then
        PS1ERROR="${colour_bold_red} $exit_code$colour_end"
    fi
}

_jobs_prompt() {
    PS1JOBS=""

    if [[ -n $(jobs -p) ]]; then
        PS1JOBS="${colour_bold_orange} \j$colour_end"
    fi
}

_prompt_command() {
    exit_code="$?"
    _git_prompt
    _error_prompt
    _jobs_prompt

    PS1="${colour_bold_blue}[$colour_end "
    PS1+="$colour_greenﲾ \u@\H$colour_end "
    PS1+="$colour_blue \w$colour_end "
    if [[ -n "${PS1GIT}" ]]; then
        PS1+="$PS1GIT "
    fi
    if [[ -n "${PS1JOBS}" ]]; then
        PS1+="$PS1JOBS "
    fi
    if [[ -n "${PS1ERROR}" ]]; then
        PS1+="$PS1ERROR "
    fi
    PS1+="$colour_bold_blue]$colour_end\n"

    if [[ "${exit_code}" -ne "0" ]]; then
        PS1+="$colour_bold_red\$$colour_end "
    else
        PS1+="$colour_bold_green\$$colour_end "
    fi

    history -a
}

PROMPT_DIRTRIM=5
PROMPT_COMMAND="_prompt_command"