Autorequire the service in postgresql_psql

In d69ff1e I changed the require to be
an autorequire. However, even in the PR I noted[1] it may not work. Now
I realize this may not work because you can't autorequire on a class. In
the same way, you can't collect classes.

I started to see this on my Puppet 7 testing (edited for brevity):

    Notice: /Stage[main]/Postgresql::Client/Package[postgresql-client]/ensure: created
    Notice: /Stage[main]/Postgresql::Client/File[/usr/local/bin/validate_postgresql_connection.sh]/ensure: defined content as '{sha256}f34c53aa433754c6343e6382cd994e33f2887f9eb54503421eb0db55a55e14a6'
    Notice: /Stage[main]/Postgresql::Server::Install/Package[postgresql-server]/ensure: created
    Notice: /Stage[main]/Postgresql::Server::Initdb/File[/var/lib/pgsql/data]/ensure: created
    Notice: /Stage[main]/Postgresql::Server::Initdb/Exec[postgresql_initdb]/returns: The files belonging to this database system will be owned by user "postgres".
    Notice: /Stage[main]/Postgresql::Server::Initdb/Exec[postgresql_initdb]/returns: This user must also own the server process.
    Notice: /Stage[main]/Postgresql::Server::Initdb/Exec[postgresql_initdb]/returns:
    Notice: /Stage[main]/Postgresql::Server::Initdb/Exec[postgresql_initdb]/returns: initdb: error: invalid locale settings; check LANG and LC_* environment variables
    Error: '/usr/bin/initdb --pgdata '/var/lib/pgsql/data'' returned 1 instead of one of [0]
    Error: /Stage[main]/Postgresql::Server::Initdb/Exec[postgresql_initdb]/returns: change from 'notrun' to ['0'] failed: '/usr/bin/initdb --pgdata '/var/lib/pgsql/data'' returned 1 instead of one of [0]
    Info: Class[Postgresql::Server::Initdb]: Unscheduling all events on Class[Postgresql::Server::Initdb]
    Notice: /Stage[main]/Postgresql::Server::Config/File[/var/lib/pgsql/data/postgresql.conf]: Dependency Exec[postgresql_initdb] has failures: true
    Warning: /Stage[main]/Postgresql::Server::Config/File[/var/lib/pgsql/data/postgresql.conf]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/File[systemd-conf-dir]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/File[systemd-override]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/File[old-systemd-override]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Exec[restart-systemd]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Concat[/var/lib/pgsql/data/pg_hba.conf]/Concat_file[/var/lib/pgsql/data/pg_hba.conf]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Concat[/var/lib/pgsql/data/pg_hba.conf]/File[/var/lib/pgsql/data/pg_hba.conf]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Concat[/var/lib/pgsql/data/pg_hba.conf]/Concat_fragment[/var/lib/pgsql/data/pg_hba.conf_header]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Postgresql::Server::Config_entry[port]/Postgresql_conf[port]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Postgresql::Server::Config_entry[data_directory]/Postgresql_conf[data_directory]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Concat[/var/lib/pgsql/data/pg_ident.conf]/Concat_file[/var/lib/pgsql/data/pg_ident.conf]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Concat[/var/lib/pgsql/data/pg_ident.conf]/File[/var/lib/pgsql/data/pg_ident.conf]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Concat[/var/lib/pgsql/data/pg_ident.conf]/Concat_fragment[/var/lib/pgsql/data/pg_ident.conf_header]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Postgresql::Server::Pg_hba_rule[local access as postgres user]/Concat::Fragment[pg_hba_rule_local access as postgres user]/Concat_fragment[pg_hba_rule_local access as postgres user]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Postgresql::Server::Pg_hba_rule[local access to database with same name]/Concat::Fragment[pg_hba_rule_local access to database with same name]/Concat_fragment[pg_hba_rule_local access to database with same name]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Postgresql::Server::Pg_hba_rule[allow localhost TCP access to postgresql user]/Concat::Fragment[pg_hba_rule_allow localhost TCP access to postgresql user]/Concat_fragment[pg_hba_rule_allow localhost TCP access to postgresql user]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Postgresql::Server::Pg_hba_rule[deny access to postgresql user]/Concat::Fragment[pg_hba_rule_deny access to postgresql user]/Concat_fragment[pg_hba_rule_deny access to postgresql user]: Skipping because of failed dependencies
      Warning: /Stage[main]/Postgresql::Server::Config/Postgresql::Server::Pg_hba_rule[allow access to all users]/Concat::Fragment[pg_hba_rule_allow access to all users]/Concat_fragment[pg_hba_rule_allow access to all users]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Config/Postgresql::Server::Pg_hba_rule[allow access to ipv6 localhost]/Concat::Fragment[pg_hba_rule_allow access to ipv6 localhost]/Concat_fragment[pg_hba_rule_allow access to ipv6 localhost]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Service/Anchor[postgresql::server::service::begin]: Skipping because of failed dependencies
    Warning: /Stage[main]/Postgresql::Server::Service/Service[postgresqld]: Skipping because of failed dependencies
    Info: Class[Postgresql::Server]: Unscheduling all events on Class[Postgresql::Server]
    Warning: /Stage[main]/Postgresql::Server::Service/Postgresql_conn_validator[validate_service_is_running]: Skipping because of failed dependencies
      Warning: /Stage[main]/Postgresql::Server::Service/Anchor[postgresql::server::service::end]: Skipping because of failed dependencies
      Warning: /Stage[main]/Postgresql::Server::Reload/Exec[postgresql_reload]: Skipping because of failed dependencies
    Info: Class[Foreman::Database::Postgresql]: Scheduling refresh of Postgresql::Server::Db[foreman]
    Info: Postgresql::Server::Db[foreman]: Scheduling refresh of Postgresql::Server::Database[foreman]
    Info: Postgresql::Server::Db[foreman]: Scheduling refresh of Postgresql::Server::Role[foreman]
    Info: Postgresql::Server::Db[foreman]: Scheduling refresh of Postgresql::Server::Database_grant[GRANT foreman - ALL - foreman]
    Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[CREATE ROLE foreman ENCRYPTED PASSWORD ****]
    Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[ALTER ROLE "foreman" NOSUPERUSER]
      Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[ALTER ROLE "foreman" NOCREATEDB]
    Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[ALTER ROLE "foreman" NOCREATEROLE]
    Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[ALTER ROLE "foreman" LOGIN]
      Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[ALTER ROLE "foreman" INHERIT]
    Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[ALTER ROLE "foreman" NOREPLICATION]
    Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[ALTER ROLE "foreman" CONNECTION LIMIT -1]
      Info: Postgresql::Server::Role[foreman]: Scheduling refresh of Postgresql_psql[ALTER ROLE foreman ENCRYPTED PASSWORD ****]
    Info: Postgresql::Server::Database_grant[GRANT foreman - ALL - foreman]: Scheduling refresh of Postgresql::Server::Grant[database:GRANT foreman - ALL - foreman]
    Error: /Stage[main]/Foreman::Database::Postgresql/Postgresql::Server::Db[foreman]/Postgresql::Server::Role[foreman]/Postgresql_psql[CREATE ROLE foreman ENCRYPTED PASSWORD ****]: Could not evaluate: Error evaluating 'unless' clause, returned pid 1676 exit 2: 'psql: error: could not connect to server: No such file or directory
            Is the server running locally and accepting
            connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?
      '

As can be seen, various resources are correctly skipped due to failed
dependencies but Postgresql_psql isn't.

This changes it to an autorequire on the service. This should work since
the name of the service resource is static.

There is an edge case where the service isn't managed. For that the
anchor is also auto-required. This gives less guarantee, but it's a
best-effort for those users.

[1]: #950 (comment)

Fixes: d69ff1e

Author: ekohl

lib/puppet/type/postgresql_psql.rb

@@ -131,7 +131,8 @@ def matches(value)
     newvalues(:true, :false)
   end
 
-  autorequire(:class) { ['Postgresql::Server::Service'] }
+  autorequire(:anchor) { ['postgresql::server::service::begin'] }
+  autorequire(:service) { ['postgresqld'] }
 
   def should_run_sql(refreshing = false)
     onlyif_param = @parameters[:onlyif]

spec/unit/defines/server/database_spec.rb

@@ -24,7 +24,7 @@
   end
 
   it { is_expected.to contain_postgresql__server__database('test') }
-  it { is_expected.to contain_postgresql_psql('CREATE DATABASE "test"') }
+  it { is_expected.to contain_postgresql_psql('CREATE DATABASE "test"').that_requires('Service[postgresqld]') }
 
   context "with comment set to 'test comment'" do
     let(:params) { { comment: 'test comment' } }