env-populate

env-populate is a simple command line utility that traverses a directory to located .env.example files and creates .env files with the same content, but with placeholder values replaced with values from environment variables. env-populate has native support for Supabase environment variables using the supabase status. See the list of support placeholder names below.

Installation

Use NPM to install env-populate globally.

npm install -g env-populate

Usage

env-populate fill [options] [dir]

Example

env-populate fill ./apps

Build-in Placeholder Names

• <supabase-url>: The Supabase API URL.
• <supabase-anon-key>: The anonymous key of the Supabase project.
• <supabase-service-role-key>: The service key of the Supabase project.
• <supabase-db-url>: The URL of the Supabase database.
• <supabase-graphql-url>: The URL of the Supabase GraphQL API.
• <host-ip>: The IP address of the host machine.

Any of these placeholder names can be overridden using the --values option (see description below).

Custom Placeholder Names

Custom placeholder names can be used in .env.example files. These can be overridden using the --values option followed by a comma separated list (spaces not allowed).

env-populate populate --values placeholder1=value1,placeholder2=value2

It is possible to override build-in placeholder names using the --values option.

env-populate populate --values supabase-service-role-key=mySuperSecretKey

Fill

The fill command is used to populate .env files in a directory. The command traverses the directory to locate .env.example files and creates .env files with the same content, but with placeholder values replaced with values from environment variables.

env-populate fill [options] [dir]

Option	Description
--values	A comma separated list of placeholder values.
--vars	A comma separated list of environment variables to add.
-o --out	The filename of the .env file to generate in each directory. The default is .env.local
--override	By default, env-populate will merge environment variables into the existing .env file. This option will force the entire file to be overridden.
--no-merge	Do not merge environment variables into the existing .env file. This option will skip .env files that already exist without merging in new variables.
--verbose	Display additional information.
--ignore	A comma separated list of patterns for directories to ignore.
--silent	Do not display any output. This option will override --verbose option.
--dry-run	Do not write .env files.
-h --help	Display help for the command.
v --version	Display the version of the command.