Aleksandr Meshchriakov
ab08402af9
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112 lines
3.2 KiB
Bash
Executable File
112 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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TARGET_VERSION="${1:-3.11}"
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IFS="." read -r PYTHON_MAJOR PYTHON_MINOR _ <<< "${TARGET_VERSION}"
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if [[ -n "${PYTHON_MINOR:-}" ]]; then
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PYTHON_BIN="python${PYTHON_MAJOR}.${PYTHON_MINOR}"
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else
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PYTHON_BIN="python${PYTHON_MAJOR}"
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fi
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python_matches() {
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local candidate="$1"
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[[ -x "${candidate}" ]] || return 1
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"${candidate}" - "${PYTHON_MAJOR}" "${PYTHON_MINOR:-}" <<'PY'
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import sys
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expected_major = int(sys.argv[1])
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expected_minor = sys.argv[2]
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if sys.version_info.major != expected_major:
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raise SystemExit(1)
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if expected_minor and sys.version_info.minor != int(expected_minor):
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raise SystemExit(1)
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PY
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}
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python_has_venv() {
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local candidate="$1"
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"${candidate}" -m venv --help >/dev/null 2>&1
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}
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print_if_usable() {
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local candidate="$1"
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case "${candidate}" in
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"${PWD}/.venv/"*)
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return 1
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;;
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esac
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if python_matches "${candidate}" && python_has_venv "${candidate}"; then
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printf '%s\n' "${candidate}"
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exit 0
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fi
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}
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if command -v "${PYTHON_BIN}" >/dev/null 2>&1; then
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print_if_usable "$(command -v "${PYTHON_BIN}")"
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fi
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TOOLCACHE_DIR="${RUNNER_TOOL_CACHE:-/opt/hostedtoolcache}"
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HOME_DIR="${HOME:-/root}"
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shopt -s nullglob
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# shellcheck disable=SC2140
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for candidate in \
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"${TOOLCACHE_DIR}"/Python/"${PYTHON_MAJOR}.${PYTHON_MINOR}"*/x64/bin/python \
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"${TOOLCACHE_DIR}"/Python/"${PYTHON_MAJOR}.${PYTHON_MINOR}"*/x64/bin/python3 \
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"${TOOLCACHE_DIR}"/uv-python/cpython-"${PYTHON_MAJOR}.${PYTHON_MINOR}"*/bin/python \
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"${HOME_DIR}"/.local/share/uv/python/cpython-"${PYTHON_MAJOR}.${PYTHON_MINOR}"*/bin/python \
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"${HOME_DIR}"/.cache/uv/python/cpython-"${PYTHON_MAJOR}.${PYTHON_MINOR}"*/bin/python; do
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print_if_usable "${candidate}"
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done
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shopt -u nullglob
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APT_RUNNER=()
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if [[ "$(id -u)" -ne 0 ]]; then
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APT_RUNNER=(sudo)
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fi
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export DEBIAN_FRONTEND=noninteractive
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if "${APT_RUNNER[@]}" apt-get update >&2 \
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&& "${APT_RUNNER[@]}" apt-get install -y "${PYTHON_BIN}" "${PYTHON_BIN}-venv" >&2; then
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print_if_usable "$(command -v "${PYTHON_BIN}")"
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fi
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install_uv_standalone() {
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if command -v uv >/dev/null 2>&1; then
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command -v uv
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return 0
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fi
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local uv_dir
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uv_dir="$(mktemp -d)"
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local install_url="https://astral.sh/uv/${UV_VERSION:-0.7.2}/install.sh"
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if ! curl -LsSf "${install_url}" | env UV_INSTALL_DIR="${uv_dir}/bin" sh >&2; then
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curl -LsSf "https://astral.sh/uv/install.sh" | env UV_INSTALL_DIR="${uv_dir}/bin" sh >&2
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fi
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printf '%s\n' "${uv_dir}/bin/uv"
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}
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UV_BIN="$(install_uv_standalone)"
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UV_PYTHON_INSTALL_DIR="${TOOLCACHE_DIR:-${HOME_DIR}/.cache}/uv-python" \
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"${UV_BIN}" python install "${TARGET_VERSION}" --no-progress >&2
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UV_PYTHON_CANDIDATE="$(
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UV_PYTHON_INSTALL_DIR="${TOOLCACHE_DIR:-${HOME_DIR}/.cache}/uv-python" \
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"${UV_BIN}" python find "${TARGET_VERSION}" --managed-python
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)"
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print_if_usable "${UV_PYTHON_CANDIDATE}"
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if "${APT_RUNNER[@]}" apt-get install -y software-properties-common >&2 \
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&& "${APT_RUNNER[@]}" add-apt-repository -y ppa:deadsnakes/ppa >&2 \
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&& "${APT_RUNNER[@]}" apt-get update >&2 \
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&& "${APT_RUNNER[@]}" apt-get install -y "${PYTHON_BIN}" "${PYTHON_BIN}-venv" >&2; then
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print_if_usable "$(command -v "${PYTHON_BIN}")"
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fi
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printf 'Unable to install a usable Python %s with venv support\n' "${TARGET_VERSION}" >&2
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exit 1
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