Create dotenv action

This action creates dotenv file

Inputs

input-prefix

The prefix for environmental variable which should be stored in dot env file. Default is empty string i.e '' which will store all environmental variable as it is without modification expects environment variable which starts with prefix GITHUB_ or RUNNER_. If you needs to also add GITHUB_ or RUNNER_ environment variable create another steps which has prefix set to GITHUB_ or RUNNER_

file-path

Location of dot env file. Default is '.env'

output-prefix

The prefix which should be added to .env file. Default is '' which adds environment variable as it is after removing input-prefix from it

Example usage

name: Create env file

on: [push]

env: # env available for all jobs all steps
  PRODUCTION: true
  ENV_KEY_PROJECT_NAME: dot-env

jobs:
  create-env-file:
    name: Create env file
    runs-on: ubuntu-latest
    env: # env available for all steps of jobs
      ENV_KEY_DEBUG: true
      ENV_KEY_USERNAME: root

    steps:
      - uses: actions/checkout@v4
      - uses: iamsauravsharma/create-dotenv@v3.1.0
        with:
          input-prefix: 'ENV_KEY_' # Optional (default: '')
          file-path: 'tests/development.env' # Optional (default : '.env')
          output-prefix: 'OUTPUT_' # Optional (default: '')
        env: # env available for only this steps
          IS_SERVER: true
          ENV_KEY_USERNAME: admin
          ENV_KEY_API_KEY: USER_API_KEY
          ENV_KEY_SECRET_KEY: secret123
          ENV_KEY_MULTILINE: |
            multi line value
            is here

will create a development.env file in tests/ directory which would contain

OUTPUT_PROJECT_NAME=dot-env
OUTPUT_USERNAME=admin
OUTPUT_DEBUG=true
OUTPUT_API_KEY=USER_API_KEY
OUTPUT_SECRET_KEY=secret123
OUTPUT_MULTILINE="multi line value
is here"

Important Notes

When using multi-line values (like ENV_KEY_MULTILINE in the example), the action will automatically wrap the value in quotes and retain the line breaks. This makes it compatible with the .env format. Single-line values are added directly without quotes.