build: support pkg managers installation (#87)

closes #71, #84, #86
- AUR
- Homebrew
- Nix
- Debian (.deb)
- RPM (.rpm)
- Aqua
- ASDF

This is my first time doing this, so there might be mistakes. If you
can't download it through any pkg manager, please leave a comment or
open an issue

---------

Co-authored-by: use-the-fork <23747916+use-the-fork@users.noreply.github.com>

packaging/asdf/bin/download

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+[ -n "$ASDF_INSTALL_VERSION" ] || { echo "ASDF_INSTALL_VERSION is required" >&2; exit 1; }
+[ -n "$ASDF_DOWNLOAD_PATH" ] || { echo "ASDF_DOWNLOAD_PATH is required" >&2; exit 1; }
+
+OS=$(uname -s | tr '[:upper:]' '[:lower:]')
+ARCH=$(uname -m)
+
+case "$ARCH" in
+  x86_64) ARCH="amd64" ;;
+  aarch64) ARCH="arm64" ;;
+esac
+
+URL="https://github.com/versenilvis/iris/releases/download/v${ASDF_INSTALL_VERSION}/iris_${OS}_${ARCH}.tar.gz"
+
+echo "Downloading Iris from $URL"
+curl -sSL "$URL" -o "$ASDF_DOWNLOAD_PATH/iris.tar.gz"
+tar -xzf "$ASDF_DOWNLOAD_PATH/iris.tar.gz" -C "$ASDF_DOWNLOAD_PATH"
+rm "$ASDF_DOWNLOAD_PATH/iris.tar.gz"

packaging/asdf/bin/install

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+[ -n "$ASDF_INSTALL_PATH" ] || { echo "ASDF_INSTALL_PATH is required" >&2; exit 1; }
+[ -n "$ASDF_DOWNLOAD_PATH" ] || { echo "ASDF_DOWNLOAD_PATH is required" >&2; exit 1; }
+
+mkdir -p "$ASDF_INSTALL_PATH/bin"
+cp "$ASDF_DOWNLOAD_PATH/iris" "$ASDF_INSTALL_PATH/bin/iris"
+chmod +x "$ASDF_INSTALL_PATH/bin/iris"

packaging/asdf/bin/list-all

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+git ls-remote --tags --refs "https://github.com/versenilvis/iris.git" \
+  | grep -o 'refs/tags/v[0-9].*' \
+  | cut -d/ -f3- \
+  | sed 's/^v//' \
+  | sort -t. -k 1,1n -k 2,2n -k 3,3n