b4b8f71dde
An older plugin, pyenv-alias, allowed naming the desired python version with an alias, which allowed installing multiple versions of the same python version. This is particularly useful on Apple silicon if you want to install both arm and x86_64 versions of python. Unfortunately, the pyenv-alias plugin broke when the code was updated to allow specifying multiple versions of Python to install at once, and the current code is not amenable to modifying the version in place with another plugin.
332 lines
9.7 KiB
Bash
Executable File
332 lines
9.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Summary: Install a Python version using python-build
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#
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# Usage: pyenv install [-f] [-kvp] <version>...
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# pyenv install [-f] [-kvp] <definition-file>
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# pyenv install -l|--list
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# pyenv install --version
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#
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# -l/--list List all available versions
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# -f/--force Install even if the version appears to be installed already
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# -s/--skip-existing Skip if the version appears to be installed already
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#
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# python-build options:
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#
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# -k/--keep Keep source tree in $PYENV_BUILD_ROOT after installation
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# (defaults to $PYENV_ROOT/sources)
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# -p/--patch Apply a patch from stdin before building
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# -v/--verbose Verbose mode: print compilation status to stdout
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# --version Show version of python-build
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# -g/--debug Build a debug version
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#
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# For detailed information on installing Python versions with
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# python-build, including a list of environment variables for adjusting
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# compilation, see: https://github.com/pyenv/pyenv#readme
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#
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set -e
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[ -n "$PYENV_DEBUG" ] && set -x
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# Add `share/python-build/` directory from each pyenv plugin to the list of
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# paths where build definitions are looked up.
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shopt -s nullglob
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for plugin_path in "$PYENV_ROOT"/plugins/*/share/python-build; do
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PYTHON_BUILD_DEFINITIONS="${PYTHON_BUILD_DEFINITIONS}:${plugin_path}"
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done
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export PYTHON_BUILD_DEFINITIONS
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shopt -u nullglob
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# Provide pyenv completions
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if [ "$1" = "--complete" ]; then
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echo --list
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echo --force
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echo --skip-existing
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echo --keep
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echo --patch
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echo --verbose
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echo --version
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echo --debug
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exec python-build --definitions
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fi
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# Load shared library functions
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eval "$(python-build --lib)"
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usage() {
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pyenv-help install 2>/dev/null
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[ -z "$1" ] || exit "$1"
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}
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definitions() {
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local query="$1"
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python-build --definitions | $(type -P ggrep grep | head -n1) -F "$query" || true
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}
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indent() {
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sed 's/^/ /'
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}
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unset FORCE
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unset SKIP_EXISTING
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unset KEEP
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unset VERBOSE
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unset HAS_PATCH
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unset DEBUG
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[ -n "$PYENV_DEBUG" ] && VERBOSE="-v"
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parse_options "$@"
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for option in "${OPTIONS[@]}"; do
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case "$option" in
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"h" | "help" )
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usage 0
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;;
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"l" | "list" )
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echo "Available versions:"
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definitions | indent
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exit
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;;
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"f" | "force" )
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FORCE=true
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;;
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"s" | "skip-existing" )
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SKIP_EXISTING=true
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;;
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"k" | "keep" )
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[ -n "${PYENV_BUILD_ROOT}" ] || PYENV_BUILD_ROOT="${PYENV_ROOT}/sources"
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;;
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"v" | "verbose" )
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VERBOSE="-v"
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;;
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"p" | "patch" )
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HAS_PATCH="-p"
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;;
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"g" | "debug" )
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DEBUG="-g"
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;;
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"version" )
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exec python-build --version
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;;
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* )
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usage 1 >&2
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;;
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esac
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done
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unset VERSION_NAME
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# The first argument contains the definition to install. If the
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# argument is missing, try to install whatever local app-specific
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# version is specified by pyenv. Show usage instructions if a local
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# version is not specified.
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DEFINITIONS=("${ARGUMENTS[@]}")
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[[ "${#DEFINITIONS[*]}" -eq 0 ]] && DEFINITIONS=($(pyenv-local 2>/dev/null || true))
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[[ "${#DEFINITIONS[*]}" -eq 0 ]] && usage 1 >&2
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is_array() {
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# no argument passed
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[[ $# -ne 1 ]] && echo 'Supply a variable name as an argument'>&2 && return 2
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local var=$1
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# use a variable to avoid having to escape spaces
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local regex="^declare -[aA] ${var}(=|$)"
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[[ $(declare -p "$var" 2> /dev/null) =~ $regex ]] && return 0
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}
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# If VERSION_ALIAS exists, create a 1-element array, VERSION_ALIASES, from VERSION_ALIAS
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if [ -n "${VERSION_ALIAS}" ]; then
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# Make sure VERSION_ALIASES doesn't already exist
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# If it does, print an error about defining only one of VERSION_ALIAS or VERSION_ALIASES
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if is_array VERSION_ALIASES; then
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echo "Define only one of VERSION_ALIAS or VERSION_ALIASES" >&2
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exit 1
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fi
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VERSION_ALIASES=("${VERSION_ALIAS}")
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fi
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# If VERSION_ALIASES exists, make sure it has the same number of elements as DEFINITIONS
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if is_array VERSION_ALIASES; then
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if [[ "${#VERSION_ALIASES[@]}" -ne "${#DEFINITIONS[@]}" ]]; then
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echo "VERSION_ALIASES must have the same number of elements as DEFINITIONS" >&2
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exit 1
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fi
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fi
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# Define `before_install` and `after_install` functions that allow
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# plugin hooks to register a string of code for execution before or
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# after the installation process.
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declare -a before_hooks after_hooks
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before_install() {
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local hook="$1"
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before_hooks["${#before_hooks[@]}"]="$hook"
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}
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after_install() {
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local hook="$1"
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after_hooks["${#after_hooks[@]}"]="$hook"
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}
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# Plan cleanup on unsuccessful installation.
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cleanup() {
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[ -z "${PREFIX_EXISTS}" ] && rm -rf "$PREFIX"
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}
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trap cleanup SIGINT
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OLDIFS="$IFS"
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IFS=$'\n' scripts=(`pyenv-hooks install`)
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IFS="$OLDIFS"
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for script in "${scripts[@]}"; do source "$script"; done
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COMBINED_STATUS=0
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for i in "${!DEFINITIONS[@]}"; do
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DEFINITION="${DEFINITIONS[$i]}"
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if is_array VERSION_ALIASES; then
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VERSION_ALIAS="${VERSION_ALIASES[$i]}"
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fi
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STATUS=0
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# Try to resolve a prefix if user indeed gave a prefix.
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# We install the version under the resolved name
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# and hooks also see the resolved name
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DEFINITION="$(pyenv-latest -q -k "$DEFINITION" || echo "$DEFINITION")"
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# Set VERSION_NAME from $VERSION_ALIAS if it is defined, else $DEFINITION.
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# Then compute the installation prefix.
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VERSION_NAME="${VERSION_ALIAS:-$DEFINITION##*/}"
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[ -n "$DEBUG" ] && VERSION_NAME="${VERSION_NAME}-debug"
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PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
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[ -d "${PREFIX}" ] && PREFIX_EXISTS=1
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# If the installation prefix exists, prompt for confirmation unless
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# the --force option was specified.
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if [ -d "${PREFIX}/bin" ]; then
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if [ -z "$FORCE" ] && [ -z "$SKIP_EXISTING" ]; then
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echo "pyenv: $PREFIX already exists" >&2
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read -p "continue with installation? (y/N) "
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case "$REPLY" in
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y | Y | yes | YES ) ;;
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* ) { STATUS=1; [[ $STATUS -gt $COMBINED_STATUS ]] && COMBINED_STATUS=$STATUS; }; continue ;;
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esac
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elif [ -n "$SKIP_EXISTING" ]; then
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# Since we know the python version is already installed, and are opting to
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# not force installation of existing versions, we just `exit 0` here to
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# leave things happy
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continue
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fi
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fi
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# If PYENV_BUILD_ROOT is set, always pass keep options to python-build.
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if [ -n "${PYENV_BUILD_ROOT}" ]; then
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export PYTHON_BUILD_BUILD_PATH="${PYENV_BUILD_ROOT}/${VERSION_NAME}"
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KEEP="-k"
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fi
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# Set PYTHON_BUILD_CACHE_PATH to $PYENV_ROOT/cache, if the directory
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# exists and the variable is not already set.
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if [ -z "${PYTHON_BUILD_CACHE_PATH}" ] && [ -d "${PYENV_ROOT}/cache" ]; then
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export PYTHON_BUILD_CACHE_PATH="${PYENV_ROOT}/cache"
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fi
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if [ -z "${PYENV_BOOTSTRAP_VERSION}" ]; then
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case "${VERSION_NAME}" in
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[23]"."* )
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# Default PYENV_VERSION to the friendly Python version. (The
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# CPython installer requires an existing Python installation to run. An
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# unsatisfied local .python-version file can cause the installer to
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# fail.)
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for version_info in "${VERSION_NAME%-dev}" "${VERSION_NAME%.*}" "${VERSION_NAME%%.*}"; do
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# Anaconda's `curl` doesn't work on platform where `/etc/pki/tls/certs/ca-bundle.crt` isn't available (e.g. Debian)
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for version in $(pyenv-whence "python${version_info}" 2>/dev/null || true); do
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if [[ "${version}" != "anaconda"* ]] && [[ "${version}" != "miniconda"* ]]; then
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PYENV_BOOTSTRAP_VERSION="${version}"
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break 2
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fi
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done
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done
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;;
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"pypy"*"-dev" | "pypy"*"-src" )
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# PyPy/PyPy3 requires existing Python 2.7 to build
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if [ -n "${PYENV_RPYTHON_VERSION}" ]; then
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PYENV_BOOTSTRAP_VERSION="${PYENV_RPYTHON_VERSION}"
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else
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for version in $(pyenv-versions --bare | sort -r); do
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if [[ "${version}" == "2.7"* ]]; then
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PYENV_BOOTSTRAP_VERSION="$version"
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break
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fi
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done
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fi
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if [ -n "$PYENV_BOOTSTRAP_VERSION" ]; then
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for dep in pycparser; do
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if ! PYENV_VERSION="$PYENV_BOOTSTRAP_VERSION" pyenv-exec python -c "import ${dep}" 1>/dev/null 2>&1; then
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echo "pyenv-install: $VERSION_NAME: PyPy requires \`${dep}' in $PYENV_BOOTSTRAP_VERSION to build from source." >&2
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exit 1
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fi
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done
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else
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echo "pyenv-install: $VERSION_NAME: PyPy requires Python 2.7 to build from source." >&2
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exit 1
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fi
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;;
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esac
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fi
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if [ -n "${PYENV_BOOTSTRAP_VERSION}" ]; then
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export PYENV_VERSION="${PYENV_BOOTSTRAP_VERSION}"
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fi
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# Execute `before_install` hooks.
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for hook in "${before_hooks[@]}"; do eval "$hook"; done
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# Invoke `python-build` and record the exit status in $STATUS.
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python-build $KEEP $VERBOSE $HAS_PATCH $DEBUG "$DEFINITION" "$PREFIX" || \
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{ STATUS=$?; [[ $STATUS -gt $COMBINED_STATUS ]] && COMBINED_STATUS=$STATUS; }
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# Display a more helpful message if the definition wasn't found.
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if [ "$STATUS" == "2" ]; then
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{ candidates="$(definitions "$DEFINITION")"
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here="$(dirname "${0%/*}")/../.."
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if [ -n "$candidates" ]; then
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echo
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echo "The following versions contain \`$DEFINITION' in the name:"
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echo "$candidates" | indent
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fi
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echo
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echo "See all available versions with \`pyenv install --list'."
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echo
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echo -n "If the version you need is missing, try upgrading pyenv"
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if [ "$here" != "${here#$(brew --prefix 2>/dev/null)}" ]; then
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printf ":\n\n"
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echo " brew update && brew upgrade pyenv"
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elif [ -d "${here}/.git" ]; then
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printf ":\n\n"
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echo " cd ${here} && git pull && cd -"
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else
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printf ".\n"
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fi
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} >&2
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fi
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# Execute `after_install` hooks.
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for hook in "${after_hooks[@]}"; do eval "$hook"; done
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# Run `pyenv-rehash` after a successful installation.
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if [[ $STATUS -eq 0 ]]; then
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pyenv-rehash
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else
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cleanup
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break
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fi
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done
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exit "${COMBINED_STATUS}"
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