pyenv/libexec/rbenv-versions

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#!/usr/bin/env bash
# Summary: List all Ruby versions available to rbenv
# Usage: rbenv versions [--bare]
#
# Lists all Ruby versions found in `$RBENV_ROOT/versions/*'.
set -e
[ -n "$RBENV_DEBUG" ] && set -x
if [ "$1" = "--bare" ]; then
hit_prefix=""
miss_prefix=""
current_version=""
include_system=""
else
hit_prefix="* "
miss_prefix=" "
current_version="$(rbenv-version-name || true)"
include_system="1"
fi
print_version() {
if [ "$1" == "$current_version" ]; then
echo "${hit_prefix}$(rbenv-version 2>/dev/null)"
else
echo "${miss_prefix}$1"
fi
}
# Include "system" in the non-bare output, if it exists
if [ -n "$include_system" ] && RBENV_VERSION=system rbenv-which ruby >/dev/null 2>&1; then
print_version system
fi
for path in "${RBENV_ROOT}/versions/"*; do
if [ -d "$path" ]; then
print_version "${path##*/}"
fi
done