Task Runner

#!/bin/bash

readonly THIS_FILE_PATH="${BASH_SOURCE[0]}"
readonly THIS_FILE_DIR="$(dirname "${THIS_FILE_PATH}")"
readonly SCRIPTS_DIR="$THIS_FILE_DIR/scripts"

SCRIPTS_FILES=()
SCRIPT_NAMES=()

getScripts() {
  if [ ! -d "$SCRIPTS_DIR" ]; then
    echo "[ERROR:SCRIPTS_DIR_NOT_FOUND] Directory $SCRIPTS_DIR not found."
    exit 1
  fi

  for file in "$SCRIPTS_DIR"/*; do
    if [ -f "$file" ] && [ -x "$file" ]; then
      SCRIPTS_FILES+=("$file")
      SCRIPT_NAMES+=("$(basename "$file")")
    fi
  done

  if [ ${#SCRIPTS_FILES[@]} -eq 0 ]; then
    echo "[ERROR:EMPTY_SCRIPTS_DIR] No executable script found in $SCRIPTS_DIR"
    exit 1
  fi
}

runScript() {
  # get props
  local SCRIPT_TO_RUN_NAME="$1"

  # get script file path
  local SCRIPT_TO_RUN_FILE=""

  for i in "${!SCRIPT_NAMES[@]}"; do
    if [[ "${SCRIPT_NAMES[$i]}" == "$SCRIPT_TO_RUN_NAME" ]]; then
      SCRIPT_TO_RUN_FILE="${SCRIPTS_FILES[$i]}"
      break
    fi
  done

  # ensure file exists
  if [ ! -f "$SCRIPT_TO_RUN_FILE" ]; then
    echo "[ERROR:SCRIPT_FILE_NOT_FOUND] Script file: $SCRIPT_TO_RUN_FILE not found."
    exit 1
  fi

  # run script
  echo ""
  echo "=========================================="
  echo "Executing Script..."
  echo "Script: ${SCRIPT_TO_RUN_FILE}"
  echo "=========================================="
  echo ""
  "$SCRIPT_TO_RUN_FILE"
}

# Menu interattivo robusto con frecce
showMenu() {

  # local state
  local index=0
  local total=${#SCRIPT_NAMES[@]}
  goPrev() {
    ((index--))
    if [ $index -lt 0 ]; then 
      index=$((total-1)); 
    fi
  }
  goNext() {
    ((index++))
    if [ $index -ge $total ]; then 
      index=0; 
    fi
  }

  # draw console
  drawMenu() {
    clear
    echo "Use arrows ↑↓ and press Enter to run a script:"
    for i in "${!SCRIPT_NAMES[@]}"; do
      if [ $i -eq $index ]; then
        echo "> ${SCRIPT_NAMES[$i]}"
      else
        echo "  ${SCRIPT_NAMES[$i]}"
      fi
    done
  }

  # run
  local KEY_CODE_ESCAPE=$'\x1b'
  local KEY_CODE_UP=$'\x1b[A'
  local KEY_CODE_DOWN=$'\x1b[B'
  local KEY_CODE_ENTER=""

  while true; do
    # re-render
    drawMenu

    # on user key press -> do stuff
    local key1=""

    IFS= read -rsn1 key1  # primo carattere

    if [[ $key1 == $KEY_CODE_ESCAPE ]]; then
      local key2=""
      IFS= read -rsn2 key2  # leggi sequenza escape
      local key="$key1$key2"

      if [[ $key == $KEY_CODE_UP ]]; then  # freccia su
        goPrev
      elif [[ $key == $KEY_CODE_DOWN ]]; then  # freccia giù
        goNext
      fi
    
    elif [[ $key1 == $KEY_CODE_ENTER ]]; then  # invio
      local SCRIPT_NAME="${SCRIPT_NAMES[$index]}"
      runScript "$SCRIPT_NAME"
      break
    fi
  done
}

# ================================
# MAIN
# ================================

getScripts
showMenu

# Task Runner

A simple task runner.  

Features: 
- **Auto-Discovery of scripts** from `task/scripts` directory to populate the launcher
- **Easy Launcher UX**: Select script with Arrow up/down and press Enter to execute
- **All script languages support**: Script are simple scripts files, they can be anything that can be launched in the machine

## Run a script

1. Run the script launcher  
    ```bash 
    ./task/run.sh
    ```
2. Select the script with arrows and press enter

## Add new script

1. Duplicate an existing script and rename it, then write the script.  
2. Assumes that the current working directory is the root of the project inside the code
3. Make it executable  
    ```bash
    ./task/run.sh
    # select
    0--MISC--make-scripts-executable.sh
    ```

#!/bin/bash

echo "Running with CWD: $(pwd)"

echo "MAKE SCRIPTS EXECUTABLE"

chmod +x ./task/scripts/*

#!/bin/bash

echo "Running with CWD: $(pwd)"
echo ""
echo "ciao"

#!/usr/bin/env node

console.log(`Running with CWD: ${process.cwd()}`);
console.log("");
console.log("ciao");