Merge pull request #7 from Pytal/dotenv

Add support for dotenv files

Author: Pytal

README.md

@@ -27,6 +27,7 @@ Make an `.env-cmdrc.json` file with the following format:
   }
 }
 ```
+> Note: The `dotenv` files: `.env.production`, `.env.preview`, and `.env.development` are also supported
 
 Run the command:
 ``` bash

package.json

@@ -14,6 +14,7 @@
     "terse": "ts-node scripts/terse.ts lib/"
   },
   "dependencies": {
+    "dotenv": "^8.2.0",
     "env-cmd": "^10.1.0"
   },
   "devDependencies": {

pnpm-lock.yaml

@@ -1,5 +1,8 @@
+import { access } from 'fs/promises'
 import { exec as execCallback } from 'child_process'
 
+export const exists = (path: string) => access(path).then(_ => true).catch(_ => false)
+
 export const exec = (cmd: string): Promise<string> => new Promise( (res,rej) =>
   execCallback( cmd, (_,stdout,stderr) => res(stdout + stderr) )
 )

src/helpers/exec.ts src/helpers/helpers.tssrc/helpers/exec.ts renamed to src/helpers/helpers.ts

@@ -1,8 +1,19 @@
+import { readFile } from 'fs/promises'
+import { exists } from '../helpers/helpers'
 import { GetEnvVars } from 'env-cmd'
+import { parse } from 'dotenv'
 import type { DeploymentEnv, EnvVarMap } from '../types/types'
 
 export const getEnvVarMap = async (deploymentEnv: DeploymentEnv, varNameList?: string[]) => {
-  const envVarMap: EnvVarMap = await GetEnvVars({ rc: { environments: [deploymentEnv] } })
+  let envVarMap: EnvVarMap
+
+  if (await exists(`.env.${deploymentEnv}`)) {
+    const dotenv = await readFile( `.env.${deploymentEnv}`, 'utf-8' )
+    envVarMap = parse(dotenv)
+  }
+  else {
+    envVarMap = await GetEnvVars({ rc: { environments: [deploymentEnv] } })
+  }
 
   if (varNameList) {
     const filteredEnvVarMap: EnvVarMap = {}

src/utils/get-env.ts

@@ -1,4 +1,4 @@
-import { exec } from '../helpers/exec'
+import { exec } from '../helpers/helpers'
 import { printStdoutList } from '../helpers/print'
 import { getEnvVarMap } from './get-env'
 import type { DeploymentEnv, EnvVarMap } from '../types/types'