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Write only S3 permissions

Time and time again I've found myself needing to limit access to S3 repositories via write-only. Read-Only access is widely used for public repositories, such as CDNs. A highly common use case for write-only access is allowing users to upload new files, but not modify any that currently exist.

PostgreSQL Create User

I've lost count of the amount of times I've forgotten the syntax for creating users, databases and permissions within postgresql. After spending so many years working with MySQL it became muscle memory and for some reason I can't shake those commands. Unlike MySQL, which I used to host myself and understand the internals of security/performance, I've only ever used hosted versions of PostgreSQL where all of this is taken care of.

Install Nokogiri on macOS Sierra

Today, I made the mistake of running gem pristine while helping someone debug an issue. Not only did this not resolve their issue, but now my ruby projects were now also unusable. By re-installing all of my gems it re-compiled Nokogiri which was now, for some reason, not compiling against the system libraries.

Remove Deleted Git Branches

Due to using to Github flow quite heavily, I end up with a lot of rogue branches locally that I'm always forgetting to cleanup. The snippet below is a quick one-liner I have aliased to cleanup-branches which saves me some time and keeps me out of branch spaghetti when autocompleting.

PostgreSQL: Distinct JSONB Keys

I'm currently building an application which makes heavy use of JSONB in PostgreSQL. After a while of searching I was unable to find any solution to people's questions about distinct JSONB keys across an entire table. Here are my findings and I hope it helps someone else.