mirror of
https://github.com/NixOS/nix.dev.git
synced 2024-10-18 14:32:43 -04:00
a3b5aad725
this will accumulate releases over time. it's not great, but this is the
price of persistent URLs. otherwise, when people link to supposedly stable
URLs, and we garbage-collect old manuals, those links will rot away.
it's also slightly simpler algorithmically, and therefore easier to
reason about.
this can be incrementally improved in the future, by automatically
adding redirects to e.g. the closest following release for which the
manual is still served. for example, if we currently serve
23.11
23.05
22.11
22.05
but in the future decide to cut that list to the first two, the script
would drop the excess pins and add redirects like these:
/manual/nixpkgs/22.05/* /manual/nixpkgs/23.05/:splat 301
/manual/nixpkgs/22.11/* /manual/nixpkgs/23.05/:splat 301
the condition for that would be that we are reasonably sure that the
manuals will manage their own internal redirects as pages and anchors
move around between releases.
52 lines
1.3 KiB
Nix
52 lines
1.3 KiB
Nix
{ writeShellApplication
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, git
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, gnused
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, niv
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, nix
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, ripgrep
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, coreutils
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}:
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# add or update Nixpkgs releases using `niv` in the current directory.
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writeShellApplication {
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name = "update-nixpkgs-releases";
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runtimeInputs = [ git gnused niv nix ripgrep ];
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text = ''
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tmp=$(mktemp -d)
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nixpkgs=$(mktemp -d)
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trap 'rm -rf $"tmp" "$nixpkgs"' EXIT
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# get release branches
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git ls-remote https://github.com/nixos/nixpkgs "refs/heads/*" \
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| rg '/nixos-\d\d\.\d\d$' | awk '{sub(/\s*refs\/heads\//, "", $2); print $2, $1}' \
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| sort --reverse --version-sort > "$tmp"/releases
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niv show | awk '
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!/^[[:space:]]/ && $1 ~ /^nixpkgs_/ {
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pin = $1
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}
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/branch:/ {
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branch = $2
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}
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/rev:/ {
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print branch, $2, pin
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}
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' > "$tmp"/pinned
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# nixpkgs-unstable moves fast enough to always need updates
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niv update nixpkgs-rolling -b nixpkgs-unstable
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# only update releases where pins don't match the latest revision
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rg --invert-match --file <(awk '{print $1, $2}' "$tmp"/pinned) "$tmp"/releases | cut -d' ' -f1 | while read -r branch; do
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version="''${branch/nixos-/}"
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version="''${version//./-}"
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pin=nixpkgs_"$version"
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if rg -q "$pin" "$tmp"/pinned; then
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niv update "$pin"
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else
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niv add nixos/nixpkgs -n "$pin" -b "$branch"
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fi
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done
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'';
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}
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