nix-update

Currently interesting files ups.sh, up.sh, check-result.sh.

1. get a list of oudated packages

    git clone https://github.com/ryantm/repology-api.git
    cabal2nix --shell --hpack . > shell.nix && nix-build shell.nix && result/bin/repology-api > packages-to-update.txt

2. Prepare a nixpkgs git repository where you want to do the updates. It expects origin to be where you want to push your updates. It clobbers any changes in that directory with git reset --hard. USE THIS ON A NEWLY CLONED REPO ONLY FOR THIS PURPOSE.
3. copy list of ones you want to update into ups.sh ARGUMENTS variable
4. Be in the directory of your update git repository. run ups.sh if it succeeds, it will make commits and push updates to the origin remote!

old notes

git ls-remote --refs --tags git://github.com/mattermost/mattermost-server.git | grep -v "rc" | tail -1

nix-instantiate -I nixpkgs=/home/ryantm/p/nixpkgs --eval --expr 'let pkgs = import {}; in builtins.elemAt pkgs.mattermost.src.urls 0'

nix-instantiate -I nixpkgs=/home/ryantm/p/nixpkgs --eval --expr 'let pkgs = import { config = {permittedInsecurePackages = [ "autotrace-0.31.1" ];}; }; aV = builtins.attrValues pkgs; in map (v: builtins.elemAt v.src.urls 0) (builtins.filter (builtins.hasAttr "src") (builtins.filter builtins.isAttrs aV))'

wget "https://repology.org/api/v1/metapackages/?inrepo=nix_unstable&outdated=on" wget "https://nixos.org/nixpkgs/packages-unstable.json.gz"