PostgreSQL simple code dumping tool with diff migration

Best used with git :octocat:

This tool was written to help migrate between different servers and to help with distributed development on PostgreSQL. Tool will automatically download latest Postgres binaries for the platform unless NO_DOWNLOAD env or --no_download flag is specified. Else tool will try to use system default pg_dump and psql files.

WARNING: This tool uses and bundles:

• apgdiff v2.6 jar file (requires Java VM)

node >=11.0.0

If you want to override this to yours binaries, e.g. system defaulted, then use envirnoment variables or cli params described below.

Usage

Commonly tool was develop as standalone and to install as dependency to use with npm. But you can also require it within you project, not much use of it that way though.

const { dump, diff, apply, StringStream } = require('pg-git');

const options = {
  user: 'postgres',
  password: 'postgres',
  database: 'postgres',
  host: 'localhost',
  port: 5432,
  noDownload: true,
};
const newDump = new StringStream('CREATE TABLE public.test(id integer);');

// dump current database, make a diff and apply
dump(options)
  .then(dumpStream => diff(options, dumpStream, newDump))
  .then(diffStream => apply(options, diffStream))
  .catch(console.error);

Or you can install tool globaly (or localy and use with npm run ...)

npm i -g pg-git

And use it in your project

Usage

pgit [options] <command>

Commands:
  commit - Create new dump
  migrate - Make a diff with dump file and apply it to database

Options:
  --user <USERNAME> - database user
  --password <PASSWORD> - database password
  --host <HOST> - pg host
  --port <PORT> - database port
  --dumpname <dumpname> - dump file name. default: dump.sql
  --pgversion <version> - postgres version to use. Specify exact version or only part else latest will be taken. E.g. 10 or 9.5 or 9.4.21
  --psql <path> - path to psql binary
  --pg_dump <path> - path to pg_dump binary
  --no_download <any> - do not download binaries from external resource 

Example

pg-git --user postgres --password postgres --host 127.0.0.1 --port 5432 commit my_database

Environment variables

PGUSER - Postgres user
PGHOST - Postgres host
PGDATABASE - Postgres database name
PGPASSWORD - Postgres password for user
PGVERSION - postgres version to use. Specify exact version or only part else latest will be taken. E.g. 10 or 9.5 or 9.4.21
PSQL_PATH - Absolute path to your psql binary file
PG_DUMP_PATH - Absolute path to yout pg_dump binary file
NO_DOWNLOAD - do not download binaries from external resource