我用rbenv安装了Ruby 1.9.3-p286。现在,在安装了一个较新的版本(p327)之后,很明显,它对与上一个版本一起安装的GEMs一无所知。
有没有可能将Gems从那个版本复制到新的版本,这样就不需要重新下载它们了?
发布于 2012-12-01 00:44:36
您可以复制gems/
和bin/
文件夹,但这会导致问题。bin/
中的文件中包含硬编码路径。
我建议重新安装它们,就像这样简单:
$ rbenv local 1.9.3-p286
$ gem list | cut -d" " -f1 > my-gems
$ rbenv local 1.9.3-p327
$ gem install $(cat my-gems)
发布于 2016-07-08 00:12:17
为了后人,我写了rbenv-copy-gems.sh来帮助我做到这一点。它不符合这个问题的标准(它是从Internet安装的,而不是本地安装的),但在我通过rbenv install升级或安装新版本的Ruby时,它对我很有用。
当前版本粘贴在下面以供参考,但我在进行改进时会保持最新的要点。
#!/bin/bash
# copy is a misnomer; it's actually LIST + INSTALL
# --from 2.2.1 [--to other-version-else-whatever-is-currently-set]
#
# TODO: install only most-recent version that's installed in FROM
# TODO: use gem names only from FROM, install latest available version (might be more recent than in FROM)
# TODO: pass arguments to gem command (e.g. --no-document)
CURRENT_VERSION=`rbenv version | cut -d' ' -f1`
GEM_LIST_ARGS="--local"
while [[ $# -gt 0 ]]; do
option="$1"
case $option in
--from)
FROM="$2"
shift
;;
--to)
TO="$2"
shift
;;
esac
shift # past argument or value
done
if [ -z "${FROM}" ]; then
FROM="${CURRENT_VERSION}"
fi
if [ -z "${TO}" ]; then
TO="${CURRENT_VERSION}"
fi
echo ">>> Install gems from v${FROM} to v${TO}"
# Get gems and versions, reformat to GEMNAME:version[,version[...]]
gems=(`RBENV_VERSION=${FROM} gem list ${GEM_LIST_ARGS} | sed -e 's/[\(\)]//g' -e 's/, /,/g' -e 's/ /:/'`)
for geminfo in "${gems[@]}"; do
gem=`echo $geminfo | cut -d: -f1`
versions=(`echo $geminfo | sed -e 's/^.*://' -e 's/,/ /g'`)
for version in "${versions[@]}"; do
installed=`RBENV_VERSION=${TO} gem query -i $gem -v $version`
if [ "${installed}" == "false" ]; then
echo ">>> Installing ${gem} ${version}:"
RBENV_VERSION=${TO} gem install $gem -v $version
else
echo ">>> ${gem} ${version} already installed"
fi
echo ""
done
done
https://stackoverflow.com/questions/13649241
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