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Adding the required option #1002

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3a0542e
Adding Required Property
htekdev Mar 22, 2021
0df8381
Update README.md
htekdev Mar 22, 2021
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6 changes: 6 additions & 0 deletions packages/babel-plugin-transform-inline-environment-variables/README.md
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Expand Up @@ -41,6 +41,9 @@ npm install babel-plugin-transform-inline-environment-variables --save-dev
["transform-inline-environment-variables", {
"include": [
"NODE_ENV"
],
"required": [
"NODE_ENV"
]
}]
]
Expand All @@ -65,3 +68,6 @@ require("@babel/core").transform("code", {

+ `include` - array of environment variables to include
+ `exclude` - array of environment variables to exclude
+ `required` -
- `array` - array of environment variables that are required. Will fail if they dont exists.
- `boolean` - **true** (all are required), **false** (none are required)
14 changes: 13 additions & 1 deletion packages/babel-plugin-transform-inline-environment-variables/src/index.js
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@@ -1,6 +1,12 @@
"use strict";

module.exports = function({ types: t }) {
function isEnvRequired(required, name) {
return (
(required && typeof required === 'boolean') ||
(required && Array.isArray(required) && required.indexOf(key.value) !== -1 )
);
}
function isLeftSideOfAssignmentExpression(path) {
return (
t.isAssignmentExpression(path.parent) && path.parent.left === path.node
Expand All @@ -9,7 +15,7 @@ module.exports = function({ types: t }) {
return {
name: "transform-inline-environment-variables",
visitor: {
MemberExpression(path, { opts: { include, exclude } = {} }) {
MemberExpression(path, { opts: { include, exclude, required } = {} }) {
if (path.get("object").matchesPattern("process.env")) {
const key = path.toComputedKey();
if (
Expand All @@ -18,6 +24,12 @@ module.exports = function({ types: t }) {
(!include || include.indexOf(key.value) !== -1) &&
(!exclude || exclude.indexOf(key.value) === -1)
) {
if (
isEnvRequired(required,key.value) &&
!process.env[key.value]
) {
throw "Environment Variable "+key.value+" was expected but not found"
}
path.replaceWith(t.valueToNode(process.env[key.value]));
}
}
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