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nixos/switchable-system: only include the switch-inhibitors check when we have inhibitors

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r-vdp
2026-01-06 23:50:10 +02:00
parent 2c3ee7a8f3
commit a998d196ab
1 changed files with 56 additions and 55 deletions
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nixos/modules/system/activation/switchable-system.nix
+56 -55
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@@ -78,68 +78,69 @@
sha256sum = lib.getExe' pkgs.coreutils "sha256sum";
diff = lib.getExe' pkgs.diffutils "diff";
in
# bash
''
incoming="''${1-}"
action="''${2-}"
lib.mkIf (lib.length config.system.switch.inhibitors > 0)
# bash
''
incoming="''${1-}"
action="''${2-}"
if [ "$action" == "boot" ]; then
echo "Not checking switch inhibitors (action = $action)"
exit
fi
echo -n "Checking switch inhibitors..."
booted_inhibitors="$(${realpath} /run/booted-system)/switch-inhibitors"
booted_inhibitors_sha="$(
if [ -f "$booted_inhibitors" ]; then
${sha256sum} - < "$booted_inhibitors"
else
echo 'none'
if [ "$action" == "boot" ]; then
echo "Not checking switch inhibitors (action = $action)"
exit
fi
)"
if [ "$booted_inhibitors_sha" == "none" ]; then
echo
echo "The previous configuration did not specify switch inhibitors, nothing to check."
exit
fi
echo -n "Checking switch inhibitors..."
new_inhibitors="$(${realpath} "$incoming")/switch-inhibitors"
new_inhibitors_sha="$(
if [ -f "$new_inhibitors" ]; then
${sha256sum} - < "$new_inhibitors"
else
echo 'none'
booted_inhibitors="$(${realpath} /run/booted-system)/switch-inhibitors"
booted_inhibitors_sha="$(
if [ -f "$booted_inhibitors" ]; then
${sha256sum} - < "$booted_inhibitors"
else
echo 'none'
fi
)"
if [ "$booted_inhibitors_sha" == "none" ]; then
echo
echo "The previous configuration did not specify switch inhibitors, nothing to check."
exit
fi
)"
if [ "$new_inhibitors_sha" == "none" ]; then
echo
echo "The new configuration does not specify switch inhibitors, nothing to check."
exit
fi
new_inhibitors="$(${realpath} "$incoming")/switch-inhibitors"
new_inhibitors_sha="$(
if [ -f "$new_inhibitors" ]; then
${sha256sum} - < "$new_inhibitors"
else
echo 'none'
fi
)"
if [ "$new_inhibitors_sha" != "$booted_inhibitors_sha" ]; then
echo
echo "Found diff in switch inhibitors:"
echo
${diff} --color "$booted_inhibitors" "$new_inhibitors"
echo
echo "The new configuration contains changes to packages that were"
echo "listed as switch inhibitors."
echo "You probably want to run 'nixos-rebuild boot' and reboot your system."
echo
echo "If you really want to switch into this configuration directly, then"
echo "you can set NIXOS_NO_CHECK=1 to ignore pre-switch checks."
echo
echo "WARNING: doing so might cause the switch to fail or your system to become unstable."
echo
exit 1
else
echo " done"
fi
'';
if [ "$new_inhibitors_sha" == "none" ]; then
echo
echo "The new configuration does not specify switch inhibitors, nothing to check."
exit
fi
if [ "$new_inhibitors_sha" != "$booted_inhibitors_sha" ]; then
echo
echo "Found diff in switch inhibitors:"
echo
${diff} --color "$booted_inhibitors" "$new_inhibitors"
echo
echo "The new configuration contains changes to packages that were"
echo "listed as switch inhibitors."
echo "You probably want to run 'nixos-rebuild boot' and reboot your system."
echo
echo "If you really want to switch into this configuration directly, then"
echo "you can set NIXOS_NO_CHECK=1 to ignore pre-switch checks."
echo
echo "WARNING: doing so might cause the switch to fail or your system to become unstable."
echo
exit 1
else
echo " done"
fi
'';
};
};
}