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feat(installer): add ASDF installer script with README, LICENSE and GitHub workflows
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‎.github/ISSUE_TEMPLATE/bug_report.md‎

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---
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name: Bug Report
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about: Report a bug to help us improve
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title: "[BUG] "
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labels: bug
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assignees: ''
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---
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**Describe the bug**
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A clear and concise description of what the bug is.
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**To Reproduce**
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Steps to reproduce the behavior:
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1. Run `...`
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2. See error
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**Expected behavior**
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A clear and concise description of what you expected to happen.
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**Environment:**
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- OS: [e.g., Ubuntu 22.04, macOS Ventura]
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- ASDF Installer version: [e.g., v1.0]
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**Additional context**
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Add any other context about the problem here.

‎.github/ISSUE_TEMPLATE/feature_request.md‎

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---
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name: Feature Request
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about: Suggest a new feature for this project
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title: "[FEATURE] "
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labels: enhancement
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assignees: ''
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---
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**Is your feature request related to a problem?**
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A clear and concise description of the problem.
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**Describe the solution you'd like**
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What you would like to see implemented.
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**Additional context**
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Add any other context or screenshots about the feature request here.

‎.github/PULL_REQUEST_TEMPLATE.md‎

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# Pull Request
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**What does this PR do?**
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- [ ] Fix a bug
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- [ ] Add a feature
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- [ ] Improve documentation
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- [ ] Other (please describe)
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**Summary**
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A brief summary of the changes.
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**Testing steps**
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Steps performed to validate the changes:
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1. ...
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**Related Issues**
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Closes # (issue number if applicable).

‎.github/workflows/shellcheck.yml‎

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name: Lint Shell Scripts
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on:
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push:
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paths:
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- '**.sh'
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pull_request:
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paths:
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- '**.sh'
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jobs:
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shellcheck:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout repository
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uses: actions/checkout@v4
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- name: Run ShellCheck
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uses: ludeeus/action-shellcheck@v2
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with:
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severity: style

‎README.md‎

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# asdf-installer
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# ASDF Installer – Latest Version
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This repository provides a **simple, automated installer** for the latest version of [ASDF](https://asdf-vm.com/), a powerful version manager for multiple runtimes such as **Python, Java, Node.js, Ruby, and more**.
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The script automatically:
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- Detects your **operating system** and **architecture**.
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- Downloads the **latest ASDF release** from GitHub.
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- Validates the **MD5 checksum**.
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- Installs ASDF into `/usr/local/bin` (or `$HOME/.local/bin` if no root access).
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---
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## **Quick Install**
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Run the command below to install ASDF:
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```bash
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curl -fsSL https://raw.githubusercontent.com/codeinloop/asdf-installer/main/install-latest-asdf.sh | bash

‎install-latest-asdf.sh‎

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#!/usr/bin/env bash
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set -euo pipefail
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INSTALL_DIR="/usr/local/bin"
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# --- Funções utilitárias ---
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log() { echo -e "\033[1;32m[INFO]\033[0m $*"; }
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err() { echo -e "\033[1;31m[ERROR]\033[0m $*" >&2; exit 1; }
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# --- Instala dependências ---
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install_dependencies() {
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local pkgs=("curl" "jq" "tar" "coreutils")
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local missing=()
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for pkg in "${pkgs[@]}"; do
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if ! command -v "$pkg" &>/dev/null; then
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missing+=("$pkg")
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fi
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done
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if [ ${#missing[@]} -gt 0 ]; then
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log "Instalando dependências: ${missing[*]}"
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if command -v apt &>/dev/null; then
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sudo apt update && sudo apt install -y "${missing[@]}"
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elif command -v yum &>/dev/null; then
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sudo yum install -y "${missing[@]}"
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elif command -v brew &>/dev/null; then
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brew install "${missing[@]}"
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else
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err "Gerenciador de pacotes não detectado. Instale manualmente: ${missing[*]}"
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fi
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fi
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}
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# --- Detecta SO e Arquitetura ---
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detect_platform() {
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OS=$(uname | tr '[:upper:]' '[:lower:]')
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case "$OS" in
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linux*) OS="linux" ;;
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darwin*) OS="darwin" ;;
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*) err "SO não suportado: $OS" ;;
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esac
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ARCH=$(uname -m)
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case "$ARCH" in
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x86_64) ARCH="amd64" ;;
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arm64|aarch64) ARCH="arm64" ;;
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*) err "Arquitetura não suportada: $ARCH" ;;
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esac
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}
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# --- Obtém a última versão ---
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get_latest_tag() {
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curl -s https://api.github.com/repos/asdf-vm/asdf/releases/latest | jq -r '.tag_name'
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}
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# --- Download e verificação de integridade ---
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download_asdf() {
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local tag="$1"
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ASSET_NAME="asdf-${tag}-${OS}-${ARCH}.tar.gz"
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ASSET_URL="https://github.com/asdf-vm/asdf/releases/download/${tag}/${ASSET_NAME}"
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log "Baixando ${ASSET_NAME}..."
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curl -L -o "${ASSET_NAME}" "${ASSET_URL}"
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curl -L -o "${ASSET_NAME}.md5" "${ASSET_URL}.md5"
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validate_checksum "${ASSET_NAME}" "${ASSET_NAME}.md5"
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}
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# --- Valida o checksum ---
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validate_checksum() {
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local file="$1"
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local md5_file="$2"
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local expected_md5
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expected_md5=$(tr -d '\n\r' < "$md5_file")
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local file_md5
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if [[ "$OS" == "darwin" ]]; then
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file_md5=$(md5 -q "$file")
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else
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file_md5=$(md5sum "$file" | awk '{print $1}')
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fi
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if [[ "$expected_md5" != "$file_md5" ]]; then
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err "Falha na validação do checksum MD5! Esperado: $expected_md5 | Obtido: $file_md5"
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fi
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log "Checksum MD5 validado com sucesso!"
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}
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# --- Instalação ---
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install_asdf() {
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log "Instalando em ${INSTALL_DIR}..."
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sudo tar --strip-components=1 -xzf "${ASSET_NAME}" -C "${INSTALL_DIR}"
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log "ASDF instalado em ${INSTALL_DIR}/asdf"
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}
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# --- Fluxo principal ---
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main() {
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install_dependencies
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detect_platform
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local latest_tag
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latest_tag=$(get_latest_tag)
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log "Instalando ASDF versão ${latest_tag} para ${OS}-${ARCH}"
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download_asdf "$latest_tag"
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install_asdf
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log "Verifique a instalação com: asdf --version"
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}
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main "$@"

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