Environment variables

Environment values sit above configuration statements and below command-line flags in precedence.

Overriding a setting

Any setting on a DATABASE or STATE statement can be supplied from the environment, using its statement keyword and its own name:

NSCHEMA_<KEYWORD>_<SETTING>

So connection_string on the DATABASE statement is NSCHEMA_DATABASE_CONNECTION_STRING, and bucket on the STATE statement is NSCHEMA_STATE_BUCKET.

export NSCHEMA_DATABASE_CONNECTION_STRING="Host=localhost;Database=app;Username=postgres;Password=postgres"

The rest

Variable	Overrides	Notes
NSCHEMA_DESTRUCTIVE_ACTION_POLICY	The destructive-action policy	error (default), warn, allow, or ignore. Equivalent to --destructive-actions.
NSCHEMA_DATA_HAZARD_POLICY	The data-hazard policy	error, warn (default), allow, or ignore. Equivalent to --data-hazards.
NSCHEMA_ENVIRONMENT	The target environment	Selects the *.env.<name>.sql overlay files. Equivalent to --environment.
NO_COLOR	Colored output	The well-known NO_COLOR convention; any value disables color. Equivalent to --no-color.