一、进坑过程如下
执行ansible遇到这种错误:
(1)
dyld: Library not loaded: @executable_path/../.Python
Referenced from: /your/home/.virtualenvs/virtualenv_name/bin/python
Reason: image not found
[1] 95221 trace trap python
(2)于是从Google查解决方案。看到是之前同事写的,就没细看就执行了,执行关键内容如下
#https://gist.github.com/tevino/1a557a0c200d61d4e4fb
read -p "‼️ Press Enter if you are not sure (y/N) " -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]; then
echo "♻️ Removing old symbolic links......"
find "$ENV_PATH" -type l -delete -print #######important########
echo "? Creating new symbolic links......"
$SYSTEM_VIRTUALENV "$ENV_PATH"
echo "? Done!"
fi
(3)执行完就哭了,很多命令都找不到了,原因是删除了/usr/local及/usr/local/bin下的所有软连接
(4)粗糙的执行恢复:
cd /usr/local/bin
for i in `ls ../Cellar/*/*/bin`;do
softlinksrc=`sudo find /usr/local/Cellar -name $i|sed 's#/usr/local#..#g'`
ln -s $softlinksrc .
done
(5)或执行以下恢复
Updating Homebrew...
Warning: nginx 1.13.12 is already installed, it's just not linked
You can use `brew link nginx` to link this version.
即:
brew link custom_software_name
➜ nginx brew link --overwrite --dry-run wget
Would remove:
/usr/local/bin/wget -> /usr/local/Cellar/wget
../Cellar/wget/1.19.1_1/bin/wget
(6)
for cs in `ls /usr/local/Cellar`;do
brew link --overwrite --dry-run $cs
brew link $cs
done
拿wget举例:
这种warning单独处理下吧.已经提示很明显了
二、总结
坑的连接如下:
#https://gist.github.com/tevino/1a557a0c200d61d4e4fb
其中有个叫laymonk的哥们明确说了这有坑了,所以以后Google和github出的内容一定要看完,谨记!!!
laymonk commented on Oct 7, 2016 •
I stumbled upon this, and just had to comment.
I imagine you reckon you are being helpful, but this a most dangerous thing to ask people to run. Running it could easily delete all links in /usr/local, which is the standard place homebrew installs pip (so, your $ENV_PATH will be /usr/local)
The simple fix involves just cd'ing into the virtualenv, and deleting all the stale links to the upgraded python by running:
find . -type l -delete
.. and then re-installing your virtualenv:
mkvirtualenv venv-name or virtualenv venv-name
An unsuspecting user may not understand the implication of answering yes, and have all symlinks blown away from /usr/local .. I think you should take this down, or amend it. No offence intended.
三、遗留问题处理
(1)diagnosis
➜ ~ brew doctor #根据brew doctor的建议进行响应的操作,notice warning section.
Warning: You have unlinked kegs in your Cellar
Leaving kegs unlinked can lead to build-trouble and cause brews that depend on
those kegs to fail to run properly once built. Run `brew link` on these:
python
ruby
vim
Warning: Homebrew's sbin was not found in your PATH but you have installed
formulae that put executables in /usr/local/sbin.
Consider setting the PATH for example like so
echo 'export PATH="/usr/local/sbin:$PATH"' >> ~/.zshrc
Warning: Broken symlinks were found. Remove them with `brew prune`:
/usr/local/bin/bin
/usr/local/bin/erb
/usr/local/bin/gem
/usr/local/bin/irb
/usr/local/bin/rake
/usr/local/bin/rdoc
/usr/local/bin/ri
/usr/local/bin/ruby
/usr/local/bin/sqlite3(2)multi-version question
➜ ~ brew ls --versions | grep vim
vim 8.0.1250 8.0.1600
➜ ~ brew uninstall --force vim
➜ ~ brew install vim #解决