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nix activation-script: add handling of empty input (#945)

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Fixed the check for empty input. Should be working correctly now.
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Schweber 2024-09-05 14:07:00 +00:00 • committed by GitHub
parent 614b073310
commit f74b2aa777
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modules/nix/activation-script
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@ -4,7 +4,7 @@ nix.settings.experimental-features = ["nix-command"];
system.activationScripts.diff = '' system.activationScripts.diff = ''
if [[ -e /run/current-system ]]; then if [[ -e /run/current-system ]]; then
${pkgs.nushell}/bin/nu -c "let diff_closure = ${pkgs.nix}/bin/nix store diff-closures /run/current-system '$systemConfig'; if (\$diff_closure | is-not-empty) { let table = \$diff_closure | lines | where \$it =~ KiB | where \$it =~ → | parse -r '^(?<Package>\S+): (?<Old>[^,]+)(?:.*) → (?<New>[^,]+)(?:.*), (?<DiffBin>.*)$' | insert Diff { get DiffBin | ansi strip | into filesize } | sort-by -r Diff | reject DiffBin; print \"\"; \$table | append [[Package Old New Diff]; [\"\" \"\" \"\" \"\"]] | append [[Package Old New Diff]; [\"\" \"\" \"Total:\" (\$table | get Diff | math sum)]] | print; print \"\" }" ${pkgs.nushell}/bin/nu -c "let diff_closure = (${pkgs.nix}/bin/nix store diff-closures /run/current-system '$systemConfig'); let table = (\$diff_closure | lines | where \$it =~ KiB | where \$it =~ → | parse -r '^(?<Package>\S+): (?<Old>[^,]+)(?:.*) → (?<New>[^,]+)(?:.*), (?<DiffBin>.*)$' | insert Diff { get DiffBin | ansi strip | into filesize } | sort-by -r Diff | reject DiffBin); if (\$table | get Diff | is-not-empty) { print \"\"; \$table | append [[Package Old New Diff]; [\"\" \"\" \"\" \"\"]] | append [[Package Old New Diff]; [\"\" \"\" \"Total:\" (\$table | get Diff | math sum) ]] | print; print \"\" }"
fi fi
''; '';