pyenv/libexec/rbenv-versions

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#!/usr/bin/env bash
set -e
[ -n "$RBENV_DEBUG" ] && set -x
RBENV_VERSION_NAME="$(rbenv-version-name)"
if [ "$1" = "--bare" ]; then
hit_prefix=""
miss_prefix=""
print_version="$RBENV_VERSION_NAME"
else
hit_prefix="* "
miss_prefix=" "
print_version="$(rbenv-version)"
fi
for path in "${RBENV_ROOT}/versions/"*; do
if [ -d "$path" ]; then
version="${path##*/}"
if [ "$version" == "$RBENV_VERSION_NAME" ]; then
echo "${hit_prefix}${print_version}"
else
echo "${miss_prefix}${version}"
fi
fi
done