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authorChristian Grothoff <grothoff@gnunet.org>2022-07-24 11:33:36 +0200
committerChristian Grothoff <grothoff@gnunet.org>2022-07-24 11:33:36 +0200
commit8fd36a4defb96770ccc7f3f1fca689a0c433f149 (patch)
tree9ec577554f8e3722b37599ccdf1753b6663f194a /src
parenta2a15adea5dafb138c7c144af35c5ff16bf56a1e (diff)
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-adapt to latest libgnunetpq
Diffstat (limited to 'src')
-rw-r--r--src/stasis/Makefile.am4
-rw-r--r--src/stasis/drop.sql (renamed from src/stasis/drop0001.sql)0
-rw-r--r--src/stasis/plugin_anastasis_postgres.c7
-rw-r--r--src/stasis/stasis-0000.sql293
4 files changed, 7 insertions, 297 deletions
diff --git a/src/stasis/Makefile.am b/src/stasis/Makefile.am
index 140f65e..d1a0b39 100644
--- a/src/stasis/Makefile.am
+++ b/src/stasis/Makefile.am
@@ -16,9 +16,9 @@ endif
sqldir = $(prefix)/share/anastasis/sql/
sql_DATA = \
- stasis-0000.sql \
+ versioning.sql \
stasis-0001.sql \
- drop0001.sql
+ drop.sql
pkgcfgdir = $(prefix)/share/anastasis/config.d/
diff --git a/src/stasis/drop0001.sql b/src/stasis/drop.sql
index c7697c0..c7697c0 100644
--- a/src/stasis/drop0001.sql
+++ b/src/stasis/drop.sql
diff --git a/src/stasis/plugin_anastasis_postgres.c b/src/stasis/plugin_anastasis_postgres.c
index 3b1136d..7ba6b73 100644
--- a/src/stasis/plugin_anastasis_postgres.c
+++ b/src/stasis/plugin_anastasis_postgres.c
@@ -83,16 +83,19 @@ postgres_drop_tables (void *cls)
{
struct PostgresClosure *pg = cls;
struct GNUNET_PQ_Context *conn;
+ enum GNUNET_GenericReturnValue ret;
conn = GNUNET_PQ_connect_with_cfg (pg->cfg,
"stasis-postgres",
- "drop",
+ NULL,
NULL,
NULL);
if (NULL == conn)
return GNUNET_SYSERR;
+ ret = GNUNET_PQ_exec_sql (conn,
+ "drop");
GNUNET_PQ_disconnect (conn);
- return GNUNET_OK;
+ return ret;
}
diff --git a/src/stasis/stasis-0000.sql b/src/stasis/stasis-0000.sql
deleted file mode 100644
index 116f409..0000000
--- a/src/stasis/stasis-0000.sql
+++ /dev/null
@@ -1,293 +0,0 @@
--- LICENSE AND COPYRIGHT
---
--- Copyright (C) 2010 Hubert depesz Lubaczewski
---
--- This program is distributed under the (Revised) BSD License:
--- L<http://www.opensource.org/licenses/bsd-license.php>
---
--- Redistribution and use in source and binary forms, with or without
--- modification, are permitted provided that the following conditions
--- are met:
---
--- * Redistributions of source code must retain the above copyright
--- notice, this list of conditions and the following disclaimer.
---
--- * Redistributions in binary form must reproduce the above copyright
--- notice, this list of conditions and the following disclaimer in the
--- documentation and/or other materials provided with the distribution.
---
--- * Neither the name of Hubert depesz Lubaczewski's Organization
--- nor the names of its contributors may be used to endorse or
--- promote products derived from this software without specific
--- prior written permission.
---
--- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
--- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
--- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
--- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
--- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
--- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
--- SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
--- CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
--- OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
--- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
---
--- Code origin: https://gitlab.com/depesz/Versioning/blob/master/install.versioning.sql
---
---
--- # NAME
---
--- **Versioning** - simplistic take on tracking and applying changes to databases.
---
--- # DESCRIPTION
---
--- This project strives to provide simple way to manage changes to
--- database.
---
--- Instead of making changes on development server, then finding
--- differences between production and development, deciding which ones
--- should be installed on production, and finding a way to install them -
--- you start with writing diffs themselves!
---
--- # INSTALLATION
---
--- To install versioning simply run install.versioning.sql in your database
--- (all of them: production, stage, test, devel, ...).
---
--- # USAGE
---
--- In your files with patches to database, put whole logic in single
--- transaction, and use \_v.\* functions - usually \_v.register_patch() at
--- least to make sure everything is OK.
---
--- For example. Let's assume you have patch files:
---
--- ## 0001.sql:
---
--- ```
--- create table users (id serial primary key, username text);
--- ```
---
--- ## 0002.sql:
---
--- ```
--- insert into users (username) values ('depesz');
--- ```
--- To change it to use versioning you would change the files, to this
--- state:
---
--- 0000.sql:
---
--- ```
--- BEGIN;
--- select _v.register_patch('000-base', NULL, NULL);
--- create table users (id serial primary key, username text);
--- COMMIT;
--- ```
---
--- ## 0002.sql:
---
--- ```
--- BEGIN;
--- select _v.register_patch('001-users', ARRAY['000-base'], NULL);
--- insert into users (username) values ('depesz');
--- COMMIT;
--- ```
---
--- This will make sure that patch 001-users can only be applied after
--- 000-base.
---
--- # AVAILABLE FUNCTIONS
---
--- ## \_v.register_patch( TEXT )
---
--- Registers named patch, or dies if it is already registered.
---
--- Returns integer which is id of patch in \_v.patches table - only if it
--- succeeded.
---
--- ## \_v.register_patch( TEXT, TEXT[] )
---
--- Same as \_v.register_patch( TEXT ), but checks is all given patches (given as
--- array in second argument) are already registered.
---
--- ## \_v.register_patch( TEXT, TEXT[], TEXT[] )
---
--- Same as \_v.register_patch( TEXT, TEXT[] ), but also checks if there are no conflicts with preexisting patches.
---
--- Third argument is array of names of patches that conflict with current one. So
--- if any of them is installed - register_patch will error out.
---
--- ## \_v.unregister_patch( TEXT )
---
--- Removes information about given patch from the versioning data.
---
--- It doesn't remove objects that were created by this patch - just removes
--- metainformation.
---
--- ## \_v.assert_user_is_superuser()
---
--- Make sure that current patch is being loaded by superuser.
---
--- If it's not - it will raise exception, and break transaction.
---
--- ## \_v.assert_user_is_not_superuser()
---
--- Make sure that current patch is not being loaded by superuser.
---
--- If it is - it will raise exception, and break transaction.
---
--- ## \_v.assert_user_is_one_of(TEXT, TEXT, ... )
---
--- Make sure that current patch is being loaded by one of listed users.
---
--- If ```current_user``` is not listed as one of arguments - function will raise
--- exception and break the transaction.
-
-BEGIN;
-
--- This file adds versioning support to database it will be loaded to.
--- It requires that PL/pgSQL is already loaded - will raise exception otherwise.
--- All versioning "stuff" (tables, functions) is in "_v" schema.
-
--- All functions are defined as 'RETURNS SETOF INT4' to be able to make them to RETURN literally nothing (0 rows).
--- >> RETURNS VOID<< IS similar, but it still outputs "empty line" in psql when calling.
-CREATE SCHEMA IF NOT EXISTS _v;
-COMMENT ON SCHEMA _v IS 'Schema for versioning data and functionality.';
-
-CREATE TABLE IF NOT EXISTS _v.patches (
- patch_name TEXT PRIMARY KEY,
- applied_tsz TIMESTAMPTZ NOT NULL DEFAULT now(),
- applied_by TEXT NOT NULL,
- requires TEXT[],
- conflicts TEXT[]
-);
-COMMENT ON TABLE _v.patches IS 'Contains information about what patches are currently applied on database.';
-COMMENT ON COLUMN _v.patches.patch_name IS 'Name of patch, has to be unique for every patch.';
-COMMENT ON COLUMN _v.patches.applied_tsz IS 'When the patch was applied.';
-COMMENT ON COLUMN _v.patches.applied_by IS 'Who applied this patch (PostgreSQL username)';
-COMMENT ON COLUMN _v.patches.requires IS 'List of patches that are required for given patch.';
-COMMENT ON COLUMN _v.patches.conflicts IS 'List of patches that conflict with given patch.';
-
-CREATE OR REPLACE FUNCTION _v.register_patch( IN in_patch_name TEXT, IN in_requirements TEXT[], in_conflicts TEXT[], OUT versioning INT4 ) RETURNS setof INT4 AS $$
-DECLARE
- t_text TEXT;
- t_text_a TEXT[];
- i INT4;
-BEGIN
- -- Thanks to this we know only one patch will be applied at a time
- LOCK TABLE _v.patches IN EXCLUSIVE MODE;
-
- SELECT patch_name INTO t_text FROM _v.patches WHERE patch_name = in_patch_name;
- IF FOUND THEN
- RAISE EXCEPTION 'Patch % is already applied!', in_patch_name;
- END IF;
-
- t_text_a := ARRAY( SELECT patch_name FROM _v.patches WHERE patch_name = any( in_conflicts ) );
- IF array_upper( t_text_a, 1 ) IS NOT NULL THEN
- RAISE EXCEPTION 'Versioning patches conflict. Conflicting patche(s) installed: %.', array_to_string( t_text_a, ', ' );
- END IF;
-
- IF array_upper( in_requirements, 1 ) IS NOT NULL THEN
- t_text_a := '{}';
- FOR i IN array_lower( in_requirements, 1 ) .. array_upper( in_requirements, 1 ) LOOP
- SELECT patch_name INTO t_text FROM _v.patches WHERE patch_name = in_requirements[i];
- IF NOT FOUND THEN
- t_text_a := t_text_a || in_requirements[i];
- END IF;
- END LOOP;
- IF array_upper( t_text_a, 1 ) IS NOT NULL THEN
- RAISE EXCEPTION 'Missing prerequisite(s): %.', array_to_string( t_text_a, ', ' );
- END IF;
- END IF;
-
- INSERT INTO _v.patches (patch_name, applied_tsz, applied_by, requires, conflicts ) VALUES ( in_patch_name, now(), current_user, coalesce( in_requirements, '{}' ), coalesce( in_conflicts, '{}' ) );
- RETURN;
-END;
-$$ language plpgsql;
-COMMENT ON FUNCTION _v.register_patch( TEXT, TEXT[], TEXT[] ) IS 'Function to register patches in database. Raises exception if there are conflicts, prerequisites are not installed or the migration has already been installed.';
-
-CREATE OR REPLACE FUNCTION _v.register_patch( TEXT, TEXT[] ) RETURNS setof INT4 AS $$
- SELECT _v.register_patch( $1, $2, NULL );
-$$ language sql;
-COMMENT ON FUNCTION _v.register_patch( TEXT, TEXT[] ) IS 'Wrapper to allow registration of patches without conflicts.';
-CREATE OR REPLACE FUNCTION _v.register_patch( TEXT ) RETURNS setof INT4 AS $$
- SELECT _v.register_patch( $1, NULL, NULL );
-$$ language sql;
-COMMENT ON FUNCTION _v.register_patch( TEXT ) IS 'Wrapper to allow registration of patches without requirements and conflicts.';
-
-CREATE OR REPLACE FUNCTION _v.unregister_patch( IN in_patch_name TEXT, OUT versioning INT4 ) RETURNS setof INT4 AS $$
-DECLARE
- i INT4;
- t_text_a TEXT[];
-BEGIN
- -- Thanks to this we know only one patch will be applied at a time
- LOCK TABLE _v.patches IN EXCLUSIVE MODE;
-
- t_text_a := ARRAY( SELECT patch_name FROM _v.patches WHERE in_patch_name = ANY( requires ) );
- IF array_upper( t_text_a, 1 ) IS NOT NULL THEN
- RAISE EXCEPTION 'Cannot uninstall %, as it is required by: %.', in_patch_name, array_to_string( t_text_a, ', ' );
- END IF;
-
- DELETE FROM _v.patches WHERE patch_name = in_patch_name;
- GET DIAGNOSTICS i = ROW_COUNT;
- IF i < 1 THEN
- RAISE EXCEPTION 'Patch % is not installed, so it can''t be uninstalled!', in_patch_name;
- END IF;
-
- RETURN;
-END;
-$$ language plpgsql;
-COMMENT ON FUNCTION _v.unregister_patch( TEXT ) IS 'Function to unregister patches in database. Dies if the patch is not registered, or if unregistering it would break dependencies.';
-
-CREATE OR REPLACE FUNCTION _v.assert_patch_is_applied( IN in_patch_name TEXT ) RETURNS TEXT as $$
-DECLARE
- t_text TEXT;
-BEGIN
- SELECT patch_name INTO t_text FROM _v.patches WHERE patch_name = in_patch_name;
- IF NOT FOUND THEN
- RAISE EXCEPTION 'Patch % is not applied!', in_patch_name;
- END IF;
- RETURN format('Patch %s is applied.', in_patch_name);
-END;
-$$ language plpgsql;
-COMMENT ON FUNCTION _v.assert_patch_is_applied( TEXT ) IS 'Function that can be used to make sure that patch has been applied.';
-
-CREATE OR REPLACE FUNCTION _v.assert_user_is_superuser() RETURNS TEXT as $$
-DECLARE
- v_super bool;
-BEGIN
- SELECT usesuper INTO v_super FROM pg_user WHERE usename = current_user;
- IF v_super THEN
- RETURN 'assert_user_is_superuser: OK';
- END IF;
- RAISE EXCEPTION 'Current user is not superuser - cannot continue.';
-END;
-$$ language plpgsql;
-COMMENT ON FUNCTION _v.assert_user_is_superuser() IS 'Function that can be used to make sure that patch is being applied using superuser account.';
-
-CREATE OR REPLACE FUNCTION _v.assert_user_is_not_superuser() RETURNS TEXT as $$
-DECLARE
- v_super bool;
-BEGIN
- SELECT usesuper INTO v_super FROM pg_user WHERE usename = current_user;
- IF v_super THEN
- RAISE EXCEPTION 'Current user is superuser - cannot continue.';
- END IF;
- RETURN 'assert_user_is_not_superuser: OK';
-END;
-$$ language plpgsql;
-COMMENT ON FUNCTION _v.assert_user_is_not_superuser() IS 'Function that can be used to make sure that patch is being applied using normal (not superuser) account.';
-
-CREATE OR REPLACE FUNCTION _v.assert_user_is_one_of(VARIADIC p_acceptable_users TEXT[] ) RETURNS TEXT as $$
-DECLARE
-BEGIN
- IF current_user = any( p_acceptable_users ) THEN
- RETURN 'assert_user_is_one_of: OK';
- END IF;
- RAISE EXCEPTION 'User is not one of: % - cannot continue.', p_acceptable_users;
-END;
-$$ language plpgsql;
-COMMENT ON FUNCTION _v.assert_user_is_one_of(TEXT[]) IS 'Function that can be used to make sure that patch is being applied by one of defined users.';
-
-COMMIT;