tjh.dev
common-updater-scripts: Support attribute lookup in flake
In flakes, packages are not exposed directly but instead they are declared
inside “packages” or “legacyPackages” output under their host platform.
flake-compat reflects this.
Let’s look for an attribute also in these outputs if the direct lookup fails.
+21
pkgs/common-updater/scripts/update-source-version
+21
pkgs/common-updater/scripts/update-source-version
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for arg in "$@"; do
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case $arg in
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--system=*)
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system="${arg#*=}"
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systemArg="--system ${arg#*=}"
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;;
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--version-key=*)
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if [[ -z "$versionKey" ]]; then
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versionKey=version
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fi
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# Allow finding packages among flake outputs in repos using flake-compat.
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pname=$(nix-instantiate $systemArg --eval --strict -A "$attr.name" || echo)
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if [[ -z "$pname" ]]; then
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if [[ -z "$system" ]]; then
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system=$(nix-instantiate --eval -E 'builtins.currentSystem' | tr -d '"')
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fi
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pname=$(nix-instantiate $systemArg --eval --strict -A "packages.$system.$attr.name" || echo)
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if [[ -n "$pname" ]]; then
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attr="packages.$system.$attr"
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else
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pname=$(nix-instantiate $systemArg --eval --strict -A "legacyPackages.$system.$attr.name" || echo)
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if [[ -n "$pname" ]]; then
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attr="legacyPackages.$system.$attr"
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else
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die "Could not find attribute '$attr'!"
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fi
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fi
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fi
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if [[ -z "$nixFile" ]]; then