Add Nix Flake to run with Nix

[OhMyMndy]

Hello!

Thanks for this awesome project!

I created a Nix Flake, so you can run dzr with one command. All the dependencies are included in the Flake and locked to a specific version.

To update the dependencies nix flake update can be run and the flake.lock file will be updated in place with the latest packages from nixpkgs-unstable.

To develop with Nix, just clone the repo and run nix run in the directory to run the local version of ./dzr! Passing arguments can be done as such nix run . -- /track/2317752015 or run the Flake directly: nix run github:OhMyMndy/dzr/1be7e5288d6c8b9226c2596a615225630ee7b848' -- /track/2317752015 for one of the last commits in this PR. You cannot link directly to a branch since that is not reproducible because you don't know when the upstream branch changes, the commit hash either exists, or it doesn't, always giving the same application and dependencies.

[yne]

damn, I shall really try nix. this looks really cool

instead of the Nix paragraph in the readme, can you put something like

Nix + Flakes | blablabla

in the Install table (and move the row before vscode, with all others Oses)

[yne]

Changed + merged 🎉

@OhMyMndy Would it be possible to move nix-related files into a subfolder ?

[OhMyMndy]

I don't think that is possible, at least it isn't as bad as having a Javascript project which has 20 different config files in the root directory of your project.

Thanks for merging!

[OhMyMndy]

Damn, I am such an idiot, had the command in the README wrong, but correct in my first comment in this PR

[yne]

ni biggie I'll update to

nix run github:yne/dzr

Also, the use of %s in unscramble printf has broken the key extract (and brew CI checks)

[yne]

we need the \ddd tranform

[yne]

this break usage form folder

./cgi-bin/dzr /track/117581954
xargs: dzr-url: No such file or directory

[yne]

@OhMyMndy
does using BINARY_NAME="$0" break nix ?

[yne]

I'm rewinding master since it does not work on my NixOS install (only dzr is copied into the /nix/store/) also too much breaking changes ($0 and key extract)

[yne]

@OhMyMndy any chance to get this working ?

[OhMyMndy]

@yne I'll give this another go this weekend!