pgpm
is a package manager for Postgres database.
Its main features include deployment of postgres objects (schemas, tables, functions, etc.), tracking of DDL changes and execution of arbitrary scripts across multiple data sources.
Prerequisites: Postgres 9.4+, python 2.7/3.4+.
- Install
psycopg2
. This cannot be easily resolved withpip
as the library relies on Postgres binaries. The step is not always trivial, though Google will certainly enlighten the path. - Run
$ pip install pgpm
- Install pgpm in every postgres database you'll be using with pgpm (must be a superuser). E.g.:
$ pgpm install "postgresql://postgres:postgres@localhost:5432/testdb"
Note: connection string must conform libpg format.
In pgpm
a package is a set of files in a directory with valid config.json
(see below) file. When package is being deployed, pgpm
reads the configuration and executes sql scripts from files specified in the package configuration.
Note: config.json
file must be present in a root directory of the package in order to use deployment feature of pgpm
pgpm
uses config.json
file for a configuration of a package. Configuration file must be a single valid JSON object with the following properties:
Property name | Required/Optional | Value | Description |
---|---|---|---|
name |
required | string |
Name of the package (for details see section 'Name of the package') |
description |
optional | string |
Description of the package |
subclass |
required | string , accepts values: basic and versioned |
Type of the package when deployed as a DB schema. For details see section 'Versioned or not versioned schema' |
scope |
required | string , accepts values: SCHEMA and DATABASE ,
defaults to SCHEMA |
Whether the the deployment should be bound to a specific schema or be for the whole DB. For details see section 'Scope of package'. |
version |
required | string , accepts values with the following format:
[0..9][0..9]_[0..9][0..9]_[0..9][0..9] |
Version of the package. For details see section 'Versioned or not versioned schema'. |
functions_path |
optional | string |
A relative path (relative to the root directory of the package) to the folder with source code for stored procedures For details see section 'Object types'. |
tables_path |
optional | string |
A relative path (relative to the root directory of the package) to the folder with sql scripts that change table definitions For details see section 'Object types'. |
types_path |
optional | string |
A relative path (relative to the root directory of the package) to the folder with source code for types definitions For details see section 'Object types'. |
triggers_path |
optional | string |
A relative path (relative to the root directory of the package) to the folder with source code for triggers (not trigger functions, they go to functions_path )
For details see section 'Object types'. |
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- Provide support for DDL evolutions and dependency management.