Are we typed yet? A bash script that counts percentage of files converted to .ts[x] in a folder

are_we_typed_yet.sh

#!/usr/bin/env bash

# By Simon Aunér 2023
# https://gist.github.com/simonauner/484f4d965d442ada60a50e3d68dc6d28

# To install in usr bin folder, run:
# sudo ln -s /path/to/are_we_typed_yet.sh /usr/local/bin/are_we_typed_yet

YELLOW='\033[1;33m'
GREEN='\033[0;32m'
NC='\033[0m' # No Color

# Print help section if first argument is -h or --help
if [[ $1 == "-h" || $1 == "--help" ]]; then
    echo "Usage: are_we_typed_yet [path]"
    echo "       are_we_typed_yet [-h | --help]"
    echo "       are_we_typed_yet [-v | --verbose]"
    echo ""
    echo "  path: path to search for js-ish files"
    echo "        defaults to ./src"
    exit 0
fi

# Find first arg that is not a flag
for arg in "$@"; do
    if [[ $arg != -* ]]; then
        FOLDER=$arg
        break
    fi
done
# If no folder is given, default to ./src
if [[ -z $FOLDER ]]; then
    FOLDER="./src"
fi

# Find if verbose flag is set in any of the arguments
for arg in "$@"; do
    if [[ $arg == "-v" || $arg == "--verbose" ]]; then
        VERBOSE=true
        break
    fi
done

# Print a progress bar with the given percentage
# Thanks https://github.com/fearside/ProgressBar/
function print_progress_bar {
# Process data
    let _width=50
    let _progress=${1}
    let _done=(${_progress}*${_width})/100
    let _left=$_width-$_done
    # Build progressbar string lengths
    _fill=$(printf "%${_done}s")
    _empty=$(printf "%${_left}s")
    printf "\r[$GREEN${_fill// /■}${_empty// /□}$NC] ${_progress}%%"
}

function animate_progress_bar {
    # Variables
    _start=0
    _end=$1
    for number in $(seq ${_start} ${_end})
    do
        sleep 0.10
        print_progress_bar ${number}
    done
    echo ""
}

# Find all files in given folder that match the given extension
# and are not in node_modules, static/libs or bower_components
# and write the number of files found to FIND_FILES_RETURN_VALUE.
# If verbose flag is set, print all files found.
FIND_FILES_RETURN_VALUE=0
function find_files_2 {
    FILES=$(find $FOLDER  \( -name \*.$1 \) \
        -not \( -path "*node_modules*" -prune \) \
        -not \( -path "*static/libs*" -prune \) \
        -not \( -path "*bower_components*" -prune \))
    # Print all files if verbose flag is set
    if [[ $VERBOSE ]]; then
        echo "$FILES"
    fi
    # "Return" number of files
    FIND_FILES_RETURN_VALUE=$(echo "$FILES" | wc -l)
    echo "$FIND_FILES_RETURN_VALUE .$1 files"
}

echo -e "Searching for js-ish files in $YELLOW$FOLDER$NC..."
echo "Found"

find_files_2 "js"
JS_COUNT=$FIND_FILES_RETURN_VALUE

find_files_2 "mjs"
MJS_COUNT=$FIND_FILES_RETURN_VALUE

find_files_2 "jsx"
JSX_COUNT=$FIND_FILES_RETURN_VALUE

find_files_2 "ts"
TS_COUNT=$FIND_FILES_RETURN_VALUE

find_files_2 "tsx"
TSX_COUNT=$FIND_FILES_RETURN_VALUE

echo "-------------------"

echo "Total: $((JS_COUNT + MJS_COUNT + JSX_COUNT + TS_COUNT + TSX_COUNT)) js-ish files"

echo "Out of all files, $((JS_COUNT + MJS_COUNT + JSX_COUNT)) are non-typed and $((TS_COUNT + TSX_COUNT)) are typed"
PERCENTAGE=$((100 * (TS_COUNT + TSX_COUNT) / (JS_COUNT + MJS_COUNT + JSX_COUNT + TS_COUNT + TSX_COUNT)))
animate_progress_bar $PERCENTAGE
echo -e "That's $GREEN$PERCENTAGE%$NC typed!"