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130 lignes
3.0 KiB
130 lignes
3.0 KiB
#!/usr/bin/env bash
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# Summary: List all Python versions available to pyenv
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# Usage: pyenv versions [--bare] [--skip-aliases]
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#
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# Lists all Python versions found in `$PYENV_ROOT/versions/*'.
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set -e
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[ -n "$PYENV_DEBUG" ] && set -x
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unset bare
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unset skip_aliases
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# Provide pyenv completions
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for arg; do
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case "$arg" in
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--complete )
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echo --bare
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echo --skip-aliases
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exit ;;
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--bare ) bare=1 ;;
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--skip-aliases ) skip_aliases=1 ;;
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* )
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pyenv-help --usage versions >&2
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exit 1
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;;
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esac
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done
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canonicalize_dir() {
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{ cd "$1" && pwd -P
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} 2>/dev/null || echo "$1"
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}
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versions_dir="${PYENV_ROOT}/versions"
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if [ -d "$versions_dir" ]; then
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versions_dir="$(canonicalize_dir "$versions_dir")"
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fi
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if ((${BASH_VERSINFO[0]} > 3)); then
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declare -A current_versions
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else
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current_versions=()
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fi
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if [ -n "$bare" ]; then
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hit_prefix=""
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miss_prefix=""
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include_system=""
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else
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hit_prefix="* "
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miss_prefix=" "
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OLDIFS="$IFS"
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IFS=:
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if ((${BASH_VERSINFO[0]} > 3)); then
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for i in $(pyenv-version-name || true); do
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current_versions["$i"]="1"
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done
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else
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current_versions=($(pyenv-version-name || true))
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fi
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IFS="$OLDIFS"
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include_system="1"
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fi
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num_versions=0
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exists() {
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local car="$1"
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local cdar
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shift
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for cdar in "$@"; do
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if [ "${car}" == "${cdar}" ]; then
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return 0
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fi
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done
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return 1
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}
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print_version() {
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if [[ ${BASH_VERSINFO[0]} -ge 4 && ${current_versions["$1"]} ]]; then
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echo "${hit_prefix}$1 (set by $(pyenv-version-origin))"
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elif (( ${BASH_VERSINFO[0]} <= 3 )) && exists "$1" "${current_versions[@]}"; then
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echo "${hit_prefix}$1 (set by $(pyenv-version-origin))"
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else
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echo "${miss_prefix}$1"
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fi
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num_versions=$((num_versions + 1))
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}
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# Include "system" in the non-bare output, if it exists
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if [ -n "$include_system" ] && \
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(PYENV_VERSION=system pyenv-which python >/dev/null 2>&1 || \
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PYENV_VERSION=system pyenv-which python3 >/dev/null 2>&1 || \
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PYENV_VERSION=system pyenv-which python2 >/dev/null 2>&1) ; then
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print_version system
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fi
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shopt -s dotglob nullglob
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versions_dir_entries=("$versions_dir"/*)
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if sort --version-sort </dev/null >/dev/null 2>&1; then
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# system sort supports version sorting
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OLDIFS="$IFS"
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IFS=$'\n'
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versions_dir_entries=($(
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printf "%s\n" "${versions_dir_entries[@]}" |
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sort --version-sort
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))
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IFS="$OLDIFS"
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fi
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for path in "${versions_dir_entries[@]}"; do
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if [ -d "$path" ]; then
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if [ -n "$skip_aliases" ] && [ -L "$path" ]; then
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target="$(canonicalize_dir "$path")"
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[ "${target%/*}" != "$versions_dir" ] || continue
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[ "${target%/*/envs/*}" != "$versions_dir" ] || continue
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fi
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print_version "${path##*/}"
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# virtual environments created by anaconda/miniconda
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for env_path in "${path}/envs/"*; do
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if [ -d "${env_path}" ]; then
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print_version "${env_path#${PYENV_ROOT}/versions/}"
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fi
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done
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fi
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done
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shopt -u dotglob nullglob
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if [ "$num_versions" -eq 0 ] && [ -n "$include_system" ]; then
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echo "Warning: no Python detected on the system" >&2
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exit 1
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fi
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