Mac OS Yosemite fixes

yosemite

[port]:
1. Install Xcode-Beta from https://developer.apple.com/xcode/downloads/
2. ➜ sudo xcode-select -s /Applications/Xcode-Beta.app/Contents/Developer/
3. ➜ sudo xcodebuild -license
4. ➜ sudo port clean install

[brew]:
➜ cd `brew --repository`
➜ git reset --hard FETCH_HEAD
➜ sudo chown -R `whoami` `brew --prefix`
➜ brew doctor
➜ git clean -fd
➜ brew update

[mysql]
➜ sudo chown -R <your_user>:<your_group> /var/mysql/

# see 
➜ cat /etc/group
➜ group <your_user>

➜ mysqld # mysqld: Can't find file: './mysql/plugin.frm' (errno: 13)
➜ perror 13 # OS error code  13:  Permission denied

/opt/local/var/db/mysql55/mysql/plugin.frm

➜ sudo chown -R _mysql:_mysql /opt/local/var/db/mysql55
➜ sudo chmod 755 /opt/local/var/db/mysql55/{mysql,performance_schema,test}
➜ sudo chmod +r /opt/local/var/db/mysql55/mysql/*


➜ mysqld_safe
# 140928 20:08:30 mysqld_safe Logging to '/opt/local/var/db/mysql55/MacBook-Pro--Monolithed.local.err'.

➜ tail /opt/local/var/db/mysql55/MacBook-Pro--Monolithed.local.err
# 140928 20:08:30 [ERROR] /opt/local/lib/mysql55/bin/mysqld: Can't find file: './performance_schema/file_instances.frm' (errno: 13)


➜ sudo vi /opt/local/etc/mysql55/my.cnf 
add the following rule: event_scheduler=disabled


➜ sudo chmod 777 /opt/local/var/run/mysql55