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Scaling a Video With Ffmpeg
From the pile Simple Things That I Keep on Forgetting, today we have: Scaling down a video with ffmpeg while preserving the aspect ratio. $ ffmpeg [...] -vf "scale=w=min(iw\,1280):h=-2" [...] "h=-2" maintains the aspect ratio, using only even numbers...
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Configuring Taskwarrior Server on Debian Buster
I have been a long time fan of taskwarrior, the command line todo-manager. It does almost everything I want and it is very configurable, so I can change the things that I don’t want. I have gone astray to other programs and services, but I’ve always come back...
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Setting a Timeout on Golang Unit Tests
There are multiple ways of ensuring that a test suite does not take too long to run. The first is simply by setting a timeout as an option with the go test command: go test -timeout 300ms One can use any value that time...
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Channel With Infinite Buffer in Golang
In Golang we have buffered and unbuffered channels. Buffered channels can hold an x amount of values “in transit” before the channel is blocked from writing. It is necessary to read a value from the other end first, to “make room”, before more can be put in...
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Unit Test Outbound HTTP Requests in Golang
In general, when one wants to test the interaction of multiple services and systems, one tries to set up an integration test. This often involves spinning up some Docker containers and a docker-compose file that orchestrates the dependencies between them and starts the integration test suite...
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Detecting Closed Connections in Golang HTTP Handlers
Edit: I don’t know where my mind was when I wrote the post below, but the most obvious way to detect a closed connection is of course to use the context that net/http already has put in the request...
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A Better Way to do Standups
Most teams that do a version of SCRUM have a similar format for the Daily Standup Meeting. They last fifteen minutes and each team member takes a turn in explaining what he/she did yesterday and what is in store for the current day...
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Address Book in Aerc With Khard
In line with the Unix philosophy, Aerc does not implement any feature to store mail addresses of contacts. Instead it has an option to retrieve them from an external address book. I already synced my contacts together with my calendar items through Vdirsyncer and Radicale, but this was more for backup purposes...
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Aerc Navigation Shortcuts
As to be expected from such an advanced and versatile terminal program, Aerc comes with a large set of key bindings that can be customized. There is even a separate configuration file for it: ~/.config/aerc/binds.conf...
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Conversions with Iota in Go
iota is a helpful way to enumerate constants in Go: const ( c0 = iota c1 c2 ) func main() { fmt.Println(c0, c1, c2) // "0 1 2" } But it is more flexible than just defining a constant to be an integer...