uvx with git+https support

uvx.sh

#!/bin/sh
set -eu

UV_INSTALL_DIR="${UV_INSTALL_DIR:-$HOME/.local/bin}"

if command -v uv >/dev/null 2>&1; then
    UV_BIN="uv"
elif [ -x "$UV_INSTALL_DIR/uv" ]; then
    UV_BIN="$UV_INSTALL_DIR/uv"
else
    echo "Installing uv..."
    if command -v curl >/dev/null 2>&1; then
        fetch_cmd="curl -LsSf"
    elif command -v wget >/dev/null 2>&1; then
        fetch_cmd="wget -qO-"
    else
        echo "error: need 'curl' or 'wget' (commands not found)" >&2
        exit 1
    fi
    $fetch_cmd https://astral.sh/uv/install.sh | sh
    UV_BIN="$UV_INSTALL_DIR/uv"
fi

echo "Installing foo@latest..."
"$UV_BIN" tool install "$@"