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{ config, pkgs, lib }:
serviceCfg: serviceDrv: iniKey: attrs:
let
cfg = config.services.sourcehut;
cfgIni = cfg.settings."${iniKey}";
pgSuperUser = config.services.postgresql.superUser;
setupDB = pkgs.writeScript "${serviceDrv.pname}-gen-db" ''
#! ${cfg.python}/bin/python
from ${serviceDrv.pname}.app import db
db.create()
'';
in
with serviceCfg; with lib; recursiveUpdate
{
environment.HOME = statePath;
path = [ config.services.postgresql.package ] ++ (attrs.path or [ ]);
restartTriggers = [ config.environment.etc."sr.ht/config.ini".source ];
serviceConfig = {
Type = "simple";
User = user;
Group = user;
Restart = "always";
WorkingDirectory = statePath;
} // (if (cfg.statePath == "/var/lib/sourcehut/${serviceDrv.pname}") then {
StateDirectory = [ "sourcehut/${serviceDrv.pname}" ];
} else {})
;
preStart = ''
if ! test -e ${statePath}/db; then
# Setup the initial database
${setupDB}
# Set the initial state of the database for future database upgrades
if test -e ${cfg.python}/bin/${serviceDrv.pname}-migrate; then
# Run alembic stamp head once to tell alembic the schema is up-to-date
${cfg.python}/bin/${serviceDrv.pname}-migrate stamp head
fi
printf "%s" "${serviceDrv.version}" > ${statePath}/db
fi
# Update copy of each users' profile to the latest
# See https://lists.sr.ht/~sircmpwn/sr.ht-admins/<20190302181207.GA13778%40cirno.my.domain>
if ! test -e ${statePath}/webhook; then
# Update ${iniKey}'s users' profile copy to the latest
${cfg.python}/bin/srht-update-profiles ${iniKey}
touch ${statePath}/webhook
fi
${optionalString (builtins.hasAttr "migrate-on-upgrade" cfgIni && cfgIni.migrate-on-upgrade == "yes") ''
if [ "$(cat ${statePath}/db)" != "${serviceDrv.version}" ]; then
# Manage schema migrations using alembic
${cfg.python}/bin/${serviceDrv.pname}-migrate -a upgrade head
# Mark down current package version
printf "%s" "${serviceDrv.version}" > ${statePath}/db
fi
''}
${attrs.preStart or ""}
'';
}
(builtins.removeAttrs attrs [ "path" "preStart" ])
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