Automatically obtain database password from db-specific external source if not explicitly specified

I’d like to use the PGPASSWORD environment variable to pass the password through to Postgresql, as allowed by psql. That way, I don’t end up with a password visible to other users.

To reproduce, instead of using flyway migrate -password=example, use PGPASSWORD=example flyway migrate.

Great tool, thanks for the no-nonsense SQL-based migrations.

[tuukkamustonen]

Just bumped into this. It doesn’t sound technically difficult to resort to ~/.pgpass if -password <pass> is not given. But, I assume ~/.pgpass is for psql CLI only and JDBC driver is completely another beast…?

Would be nice feature, still.

[cbandy]

@ToBeReplaced if security is your concern, the PGPASSWORD environment variable may not be what you want.

http://www.postgresql.org/docs/current/static/libpq-envars.html

Use of this environment variable is not recommended for security reasons, as some operating systems allow non-root users to see process environment variables via ps; instead consider using the ~/.pgpass file.