[Linux][config] Configuration for custom PS1 (different behavior for git repo, and Python environments) and tab title in gnome-terminal

.bashrc

# >>> custom prompt PS1 >>>
export GIT_PS1_SHOWDIRTYSTATE=1
export GIT_PS1_SHOWUNTRACKEDFILES=1
export GIT_PS1_SHOWUPSTREAM=auto
TRIANGLE_SYM=$'\ue0b0'

function prompt_func() {
    # IMPORTANT: Non-printable sequences should be enclosed in \[ and \]
    if [ "$(git rev-parse --is-inside-work-tree 2>/dev/null)" ]; then # inside a git repo
        gitsubdir=$(basename $(git rev-parse --show-toplevel))/$(git rev-parse --show-prefix)
        PS1_NO_TITLE='\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[33m\]$(__git_ps1 "(%s)")\[\033[00m\] \[\033[01;34m\]${gitsubdir%/}\[\033[00;96;01m\]\$ \[\033[00m\]'
        TITLE="${gitsubdir%/}"
        TITLE="$(echo -e '\uf121') ${gitsubdir%/}"
    else # not a git repo
        PS1_NO_TITLE='\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00;96;01m\]\$ \[\033[00m\]'
        TITLE="\w"
    fi
    if [[ -n "$VIRTUAL_ENV" ]]; then # inside a poetry environment
        pyversion=$(echo "$VIRTUAL_ENV" | grep -o -E --color=never '[0-9]\.[0-9]{1,2}$')
        if [[ -z "$pyversion" ]]; then
            pyversion="env"
        fi
        PS1_NO_TITLE="\[\033[40;1m\]${pyversion}\[\033[0;30m\]${TRIANGLE_SYM}\[\033[0m\]${PS1_NO_TITLE}"
    fi
    if [[ -n "$CONDA_PROMPT_MODIFIER" ]]; then # inside a conda environment
        CONDA_ENV=$(echo $CONDA_PROMPT_MODIFIER | tr -d '()')
        #  echo "Hello${CONDA_ENV}"
        PS1_NO_TITLE="\[\033[100;1m\]${CONDA_ENV}\[\033[0;90m\]${TRIANGLE_SYM}\[\033[0m\]${PS1_NO_TITLE}"
    fi

    if [[ -n "$TAB_TITLE" ]]; then
        TITLE=$TAB_TITLE
    fi
    ESCAPED_TITLE="\[\033]2;${TITLE}\007\]" # https://unix.stackexchange.com/a/566383/521267, https://askubuntu.com/a/252233
    PS1="${PS1_NO_TITLE}${ESCAPED_TITLE}"
    export PS1
}

PROMPT_COMMAND=prompt_func

# <<< custom prompt PS1 <<<

gistfile1.txt

start=57344
end=63743
nb_per_row=10

undefined_codes=(
    57453 57545 57547 57555 57948 57858 57960 57986 57992 58305 58350 58351 58376 58408
    58410 58411 58413 58417 58421 58422 58476 58477 58515 58630 58669 58717 61341 61342
    61441 61442 61443 61471 61472 61503 61519 61535 61551 61567 61583 61599 61615 61647
    61663 61679 61711 61718 61719 61727 61759 61791 61835 61935 61951 62063 62079 62095
    62111 62127 62143 62159 62175
)
interesting_codes=()
for i in {57344..57399} {57402..57402} {57452..57455} {57483..57488} {57502..57506} \
    {57512..57514} {57520..57556} {57847..57953} {57955..57991} {57999..58001} \
    {58125..58140} {58253..58253} {58269..58269} {58275..58275} {58281..58283} \
    {58295..58312} {58320..58320} {58336..58355} {58368..58369} {58375..58378} \
    {58395..58398} {58405..58462} {58470..58494} {58507..58564} {58627..58631} \
    {58653..58675} {58696..58719} {60182..60182} {58736..58741} {58744..58748} \
    {58756..58759} {58765..58768} {58771..58775} {58789..58789} {58992..58992} \
    {59005..59005} {59008..59043} {60224..60224} {60928..60939} {61184..61209} \
    {61328..61343} {61375..61420} {61434..61618} {61632..61742} {61750..61774} \
    {61787..61806} {61815..61815} {61820..61822} {61827..61844} {61931..61936} \
    {61946..61959} {62062..62176}; do
    if [[ ! " ${undefined_codes[@]} " =~ " ${i} " ]]; then
        interesting_codes+=($i)
    fi
done

# nb_elmts=$((end - start + 1))
nb_elmts=${#interesting_codes[@]}
nb_per_col=$(((nb_elmts - 1) / nb_per_row))

for i in $(eval echo "{0..$((nb_per_col))}"); do
    for j in $(eval echo "{0..$((nb_per_row - 1))}"); do
        index=$((i + (nb_per_col + 1) * j))
        # code_dec=$((start + i + (nb_per_col + 1) * j))
        code_dec=${interesting_codes[index]}
        code_hex=$(printf '%x\n' $code_dec)
        echo -e -n "$code_hex \u$code_hex    "
    done
    echo
done

# f293: Bluetooth +(f294)
# f295: Percent
# f296: Gitlab
# f299: Leaf
# f2ac: Snap +(f2ab, f2ad)