c4patino/yumeami
1
0
Fork 0
Code Activity Actions

feat: update lib with flattenHostServices, getServicePort, and hostHasService

Browse source
This commit is contained in:
Ceferino Patino 2026-05-15 17:59:33 -05:00
commit c184b90f26
Signed by: c4patino
SSH key fingerprint: SHA256:Wu+cU1t+7zVT9wzew/4meNmeulo66NzMqc22MdDBgXI
1 changed files with 57 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

57
lib/module/default.nix
View file

@ -182,4 +182,61 @@ with lib; rec {
else null;
in
go attrs path;
## Convert a host-first service map into a flat service->attrs map.
##
## Input: { hostName = { serviceName = { ... }; ... }; ... }
## Output: { serviceName = { host = hostName; ... }; ... }
##
## @param hostServices Attribute set mapping host names to their service maps.
## @return Flattened map with service names as keys, augmented with host.
## @throws If duplicate service names exist across different hosts.
flattenHostServices = hostServices: let
perHostEntries =
mapAttrsToList (
host: services:
mapAttrsToList (
svcName: svc: {
name = svcName;
value = svc // {host = host;};
}
)
services
)
hostServices;
flattenedList = concatLists perHostEntries;
flattenedAttrs = listToAttrs flattenedList;
in
if length flattenedList != length (attrNames flattenedAttrs)
then throw "flattenHostServices: duplicate service names across hosts detected"
else flattenedAttrs;
## Check if a host has any services defined in the network-services config.
##
## @param networkServices The network-services attribute set (host-first shape).
## @param hostName The hostname to check.
## @return true if the host has any services defined, false otherwise.
hostHasServices = networkServices: hostName:
networkServices ? ${hostName}
&& networkServices.${hostName} != {};
## Check if a host has a specific service defined in the network-services config.
##
## @param networkServices The network-services attribute set (host-first shape).
## @param hostName The hostname to check.
## @param serviceName The service name to check for.
## @return true if the host has the specific service defined, false otherwise.
hostHasService = networkServices: hostName: serviceName:
networkServices ? ${hostName}
&& networkServices.${hostName} ? ${serviceName};
## Get the port for a service from the flattened network-services map.
##
## @param networkServicesFlat The flattened network-services map (from flattenHostServices).
## @param serviceName The name of the service.
## @param defaultPort The default port to use if not specified in network-services.
## @return The port (either from config or default).
getServicePort = networkServicesFlat: serviceName: defaultPort:
networkServicesFlat.${serviceName}.port or defaultPort;
}