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Merge pull request #135 from marsam/feature/postgresql-plugins

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postgresql: Add support for extraPlugins
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Daiderd Jordan 2019-03-30 10:30:58 +01:00 • committed by GitHub
commit 51ecc4151f
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1 changed files with 35 additions and 3 deletions
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38
modules/services/postgresql/default.nix
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@ -5,6 +5,25 @@ with lib;
let
cfg = config.services.postgresql;
postgresqlAndPlugins = pg:
if cfg.extraPlugins == [] then pg
else pkgs.buildEnv {
name = "postgresql-and-plugins-${(builtins.parseDrvName pg.name).version}";
paths = [ pg pg.lib ] ++ cfg.extraPlugins;
# We include /bin to ensure the $out/bin directory is created which is
# needed because we'll be removing files from that directory in postBuild
# below.
pathsToLink = [ "/" "/bin" ];
buildInputs = [ pkgs.makeWrapper ];
postBuild = ''
rm $out/bin/{pg_config,postgres,pg_ctl}
cp --target-directory=$out/bin ${pg}/bin/{postgres,pg_config,pg_ctl}
wrapProgram $out/bin/postgres --set NIX_PGLIBDIR $out/lib
'';
};
postgresql = postgresqlAndPlugins cfg.package;
configFile = pkgs.writeText "postgresql.conf"
''
log_destination = 'stderr'
@ -52,6 +71,19 @@ in
'';
};
extraPlugins = mkOption {
type = types.listOf types.path;
default = [];
example = literalExample "[ (pkgs.postgis.override { postgresql = pkgs.postgresql94; }) ]";
description = ''
When this list contains elements a new store path is created.
PostgreSQL and the elements are symlinked into it. Then pg_config,
postgres and pg_ctl are copied to make them use the new
$out/lib directory as pkglibdir. This makes it possible to use postgis
without patching the .sql files which reference $libdir/postgis-1.5.
'';
};
extraConfig = mkOption {
type = types.lines;
default = "";
@ -62,10 +94,10 @@ in
config = mkIf cfg.enable {
environment.systemPackages = [ cfg.package ];
environment.systemPackages = [ postgresql ];
launchd.user.agents.postgresql =
{ path = [ cfg.package ];
{ path = [ postgresql ];
script = ''
# Initialise the database.
if ! test -e ${cfg.dataDir}/PG_VERSION; then
@ -73,7 +105,7 @@ in
fi
${pkgs.coreutils}/bin/ln -sfn ${configFile} ${cfg.dataDir}/postgresql.conf
exec ${cfg.package}/bin/postgres -D ${cfg.dataDir} ${optionalString cfg.enableTCPIP "-i"}
exec ${postgresql}/bin/postgres -D ${cfg.dataDir} ${optionalString cfg.enableTCPIP "-i"}
'';
serviceConfig.KeepAlive = true;