Facilitated Teamocil.yml file creation

timo-make.sh

#!/usr/bin/env bash
# FILE: timo-make.sh
# readline for facilitating 
set -euo pipefail
############################################################
#{{{ Helpers
tmuxdims () 
{ 
    local WINDEX=${1:-$(tmux display-message -p '#I')};
    tmux list-windows | \grep -i "^${WINDEX}" | cut -f 3- -d'[' | sed 's/layout //' | sed 's/ @.*//' | sed 's/.$//'
}
ask() {
    # https://djm.me/ask
    local prompt default reply

    while true; do

        if [ "${2:-}" = "Y" ]; then
            prompt="Y/n"
            default=Y
        elif [ "${2:-}" = "N" ]; then
            prompt="y/N"
            default=N
        else
            prompt="y/n"
            default=
        fi

        # Ask the question (not using "read -p" as it uses stderr not stdout)
        echo -n "$1 [$prompt] "

        # Read the answer (use /dev/tty in case stdin is redirected from somewhere else)
        read reply </dev/tty

        # Default?
        if [ -z "$reply" ]; then
            reply=$default
        fi

        # Check if the reply is valid
        case "$reply" in
            "") return 0 ;;
            Y*|y*) return 0 ;;
            N*|n*) return 1 ;;
        esac

    done
}

quote () 
{ 
    local quoted=${1//\'/\'\\\'\'};
    printf "'%s'" "$quoted"
}
#}}}

this_pane_ref=$(tmux display -p -t "$TMUX_PANE" "#{pane_index}")
tmux_window_dims=$(tmuxdims)
num_of_panes=$(tmux list-panes | wc -l | tr -d '[[:space:]]' )
thisdirname="${PWD##*/}"
read -ep "What name for this template? [default: $thisdirname] " name
if [[ -z "$name" ]]; then
    name="$thisdirname"
fi

# Populate template:
filename="./teamocil.yml"
cat >  "$filename" <<HERE
name: XXXX
windows:
  - name: "$name"
    root: ./
    layout: "$tmux_window_dims"
    panes:
HERE

# Add panes to template
for pn in $(seq 1 "$num_of_panes");
do
    # TODO:
    #if this_pane_ref == pn, then make it the default-focused pane, w/ a "hello" message
    read -e -p "Pane $pn > " pane_cmd
    echo "      - $(quote "$pane_cmd")" >> "$filename" 
done
    
function confirm_yaml() {
    cat "$filename"
    if ask "^^^ Look good?"; then
        echo "Ok, let's append the pane-cmds"
    else
        rm "$filename"
        echo "TRY AGAIN"
        exit 1
    fi
}
confirm_yaml

# TEST: for robust quote-handling
# echo "some * $PWD" 'now no $resolution' END-echo
# ... here: (for info on YAML, escaping, "shell" module etc.)
# https://stackoverflow.com/questions/37427498/how-to-escape-double-and-single-quotes-in-yaml-within-the-same-string
# ... here: (for whitespace trimming)
# https://stackoverflow.com/questions/369758/how-to-trim-whitespace-from-a-bash-variable

# bash, and ideas for templating
# https://stackoverflow.com/questions/6214743/create-new-file-from-templates-with-bash-script