4e318bcca1
Usually, on the stable channel, we have a nss_latest attribute that is more up to date than the nss attribute (which is usually frozen during branch-off and only receives security updates). Cacerts are a sensitive matter and should be updated more frequently than the stable NSS package, if required. By making the update script aware of the nss_latest attribute we can prefer that when it exists. By having this change in the unstable branch of Nixpgks we can carry it from release to release without requiring more churn from those doing the stable release maintenance.
43 lines
1.8 KiB
Bash
Executable File
43 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i bash -p nix common-updater-scripts jq
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# Build both the cacert package and an overriden version where we use the source attribute of NSS.
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# Cacert and NSS are both from the same upstream sources. They are decoupled as
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# the cacert output only cares about a few infrequently changing files in the
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# sources while the NSS source code changes frequently.
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#
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# By having cacert on a older source revision that produces the same
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# certificate output as a newer version we can avoid large amounts of
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# unnecessary rebuilds.
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#
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# As of this writing there are a few magnitudes more packages depending on
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# cacert than on nss.
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#
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# If the current nixpkgs revision contains the attribute `nss_latest` that will
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# be used instead of `nss`. This is done to help the stable branch maintenance
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# where (usually) after branch-off during the first Firefox upgrade that
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# requries a new NSS version that attribute is introduced.
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# By having this change in the unstable branch we can safely carry it from
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# release to release without requiring more backport churn on those doing the
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# stable maintenance.
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set -ex
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BASEDIR="$(dirname "$0")/../../../.."
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CURRENT_PATH=$(nix-build --no-out-link -A cacert.out)
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PATCHED_PATH=$(nix-build --no-out-link -E "with import $BASEDIR {}; let nss_pkg = pkgs.nss_latest or pkgs.nss; in (cacert.overrideAttrs (_: { inherit (nss_pkg) src version; })).out")
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# Check the hash of the etc subfolder
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# We can't check the entire output as that contains the nix-support folder
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# which contains the output path itself.
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CURRENT_HASH=$(nix-hash "$CURRENT_PATH/etc")
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PATCHED_HASH=$(nix-hash "$PATCHED_PATH/etc")
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if [[ "$CURRENT_HASH" != "$PATCHED_HASH" ]]; then
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NSS_VERSION=$(nix-instantiate --json --eval -E "with import $BASEDIR {}; nss.version" | jq -r .)
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update-source-version cacert "$NSS_VERSION"
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fi
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