Add support for backticks

CHANGELOG.md

@@ -2,7 +2,13 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
-## [Unreleased](https://github.com/motdotla/dotenv/compare/v15.0.0...master)
+## [Unreleased](https://github.com/motdotla/dotenv/compare/v16.0.0...master)
+
+## [16.0.0](https://github.com/motdotla/dotenv/compare/v15.0.1...v16.0.0) (2022-02-02)
+
+### Added
+
+- _Breaking:_ Backtick support 🎉 (template literals). If you had values containing the backtick character, please quote those values with either single or double quotes.
 
 ## [15.0.1](https://github.com/motdotla/dotenv/compare/v15.0.0...v15.0.1) (2022-02-02)
 

README.md

@@ -299,6 +299,8 @@ The parsing engine currently supports the following rules:
 line'}
 ```
 
+- backticks are supported (`BACKTICK_KEY=`This has 'single' and "double" quotes inside of it.``)
+
 ### What happens to environment variables that were already set?
 
 By default, we will never modify any environment variables that have already been set. In particular, if there is a variable in your `.env` file which collides with one that already exists in your environment, then that variable will be skipped.

lib/main.js

@@ -2,7 +2,7 @@ const fs = require('fs')
 const path = require('path')
 const os = require('os')
 
-const LINE = /(?:^|^)\s*(?:export\s+)?([\w.-]+)(?:\s*=\s*?|:\s+?)(\s*'(?:\\'|[^'])*'|\s*"(?:\\"|[^"])*"|[^#\r\n]+)?\s*(?:#.*)?(?:$|$)/mg
+const LINE = /(?:^|^)\s*(?:export\s+)?([\w.-]+)(?:\s*=\s*?|:\s+?)(\s*'(?:\\'|[^'])*'|\s*"(?:\\"|[^"])*"|\s*`(?:\\`|[^`])*`|[^#\r\n]+)?\s*(?:#.*)?(?:$|$)/mg
 
 // Parser src into an Object
 function parse (src) {
@@ -28,7 +28,7 @@ function parse (src) {
     const maybeQuote = value[0]
 
     // Remove surrounding quotes
-    value = value.replace(/^(['"])([\s\S]*)\1$/mg, '$2')
+    value = value.replace(/^(['"`])([\s\S]*)\1$/mg, '$2')
 
     // Expand newlines if double quoted
     if (maybeQuote === '"') {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dotenv",
-  "version": "15.0.1",
+  "version": "16.0.0",
   "description": "Loads environment variables from .env file",
   "main": "lib/main.js",
   "types": "lib/main.d.ts",

tests/.env

@@ -5,23 +5,34 @@ AFTER_LINE=after_line
 EMPTY=
 EMPTY_SINGLE_QUOTES=''
 EMPTY_DOUBLE_QUOTES=""
+EMPTY_BACKTICKS=``
 SINGLE_QUOTES='single_quotes'
 SINGLE_QUOTES_SPACED='    single quotes    '
 DOUBLE_QUOTES="double_quotes"
 DOUBLE_QUOTES_SPACED="    double quotes    "
 DOUBLE_QUOTES_INSIDE_SINGLE='double "quotes" work inside single quotes'
 SINGLE_QUOTES_INSIDE_DOUBLE="single 'quotes' work inside double quotes"
+BACKTICKS_INSIDE_SINGLE='`backticks` work inside single quotes'
+BACKTICKS_INSIDE_DOUBLE="`backticks` work inside double quotes"
+BACKTICKS=`backticks`
+BACKTICKS_SPACED=`    backticks    `
+DOUBLE_QUOTES_INSIDE_BACKTICKS=`double "quotes" work inside backticks`
+SINGLE_QUOTES_INSIDE_BACKTICKS=`single 'quotes' work inside backticks`
+DOUBLE_AND_SINGLE_QUOTES_INSIDE_BACKTICKS=`double "quotes" and single 'quotes' work inside backticks`
 EXPAND_NEWLINES="expand\nnew\nlines"
 DONT_EXPAND_UNQUOTED=dontexpand\nnewlines
 DONT_EXPAND_SQUOTED='dontexpand\nnewlines'
+DONT_EXPAND_SQUOTED='dontexpand\nnewlines'
 # COMMENTS=work
 INLINE_COMMENTS=inline comments # work #very #well
 INLINE_COMMENTS_SINGLE_QUOTES='inline comments outside of #singlequotes' # work
 INLINE_COMMENTS_DOUBLE_QUOTES="inline comments outside of #doublequotes" # work
+INLINE_COMMENTS_BACKTICKS=`inline comments outside of #backticks` # work
 INLINE_COMMENTS_SPACE=inline comments start with a#space
 EQUAL_SIGNS=equals==
 RETAIN_INNER_QUOTES={"foo": "bar"}
 RETAIN_INNER_QUOTES_AS_STRING='{"foo": "bar"}'
+RETAIN_INNER_QUOTES_AS_BACKTICKS=`{"foo": "bar's"}`
 TRIM_SPACE_FROM_UNQUOTED=    some spaced out string
 USERNAME=therealnerdybeast@example.tld
     SPACED_KEY = parsed

tests/.env-multiline

@@ -30,3 +30,9 @@ IS
 A
 MULTILINE
 STRING'
+
+MULTI_BACKTICKED=`THIS
+IS
+A
+"MULTILINE'S"
+STRING`

tests/test-parse-multiline.js

@@ -45,6 +45,8 @@ t.equal(parsed.MULTI_DOUBLE_QUOTED, 'THIS\nIS\nA\nMULTILINE\nSTRING', 'parses mu
 
 t.equal(parsed.MULTI_SINGLE_QUOTED, 'THIS\nIS\nA\nMULTILINE\nSTRING', 'parses multi-line strings when using single quotes')
 
+t.equal(parsed.MULTI_BACKTICKED, 'THIS\nIS\nA\n"MULTILINE\'S"\nSTRING', 'parses multi-line strings when using single quotes')
+
 const payload = dotenv.parse(Buffer.from('BUFFER=true'))
 t.equal(payload.BUFFER, 'true', 'should parse a buffer into an object')
 

tests/test-parse.js

@@ -17,6 +17,8 @@ t.equal(parsed.EMPTY_SINGLE_QUOTES, '', 'defaults empty values to empty string')
 
 t.equal(parsed.EMPTY_DOUBLE_QUOTES, '', 'defaults empty values to empty string')
 
+t.equal(parsed.EMPTY_BACKTICKS, '', 'defaults empty values to empty string')
+
 t.equal(parsed.SINGLE_QUOTES, 'single_quotes', 'escapes single quoted values')
 
 t.equal(parsed.SINGLE_QUOTES_SPACED, '    single quotes    ', 'respects surrounding spaces in single quotes')
@@ -29,6 +31,20 @@ t.equal(parsed.DOUBLE_QUOTES_INSIDE_SINGLE, 'double "quotes" work inside single
 
 t.equal(parsed.SINGLE_QUOTES_INSIDE_DOUBLE, "single 'quotes' work inside double quotes", 'respects single quotes inside double quotes')
 
+t.equal(parsed.BACKTICKS_INSIDE_SINGLE, '`backticks` work inside single quotes', 'respects backticks inside single quotes')
+
+t.equal(parsed.BACKTICKS_INSIDE_DOUBLE, '`backticks` work inside double quotes', 'respects backticks inside double quotes')
+
+t.equal(parsed.BACKTICKS, 'backticks')
+
+t.equal(parsed.BACKTICKS_SPACED, '    backticks    ')
+
+t.equal(parsed.DOUBLE_QUOTES_INSIDE_BACKTICKS, 'double "quotes" work inside backticks', 'respects double quotes inside backticks')
+
+t.equal(parsed.SINGLE_QUOTES_INSIDE_BACKTICKS, "single 'quotes' work inside backticks", 'respects single quotes inside backticks')
+
+t.equal(parsed.DOUBLE_AND_SINGLE_QUOTES_INSIDE_BACKTICKS, "double \"quotes\" and single 'quotes' work inside backticks", 'respects single quotes inside backticks')
+
 t.equal(parsed.EXPAND_NEWLINES, 'expand\nnew\nlines', 'expands newlines but only if double quoted')
 
 t.equal(parsed.DONT_EXPAND_UNQUOTED, 'dontexpand\\nnewlines', 'expands newlines but only if double quoted')
@@ -43,6 +59,8 @@ t.equal(parsed.INLINE_COMMENTS_SINGLE_QUOTES, 'inline comments outside of #singl
 
 t.equal(parsed.INLINE_COMMENTS_DOUBLE_QUOTES, 'inline comments outside of #doublequotes', 'ignores inline comments and respects # character inside of double quotes')
 
+t.equal(parsed.INLINE_COMMENTS_BACKTICKS, 'inline comments outside of #backticks', 'ignores inline comments and respects # character inside of backticks')
+
 t.equal(parsed.INLINE_COMMENTS_SPACE, 'inline comments start with a', 'treats # character as start of comment')
 
 t.equal(parsed.EQUAL_SIGNS, 'equals==', 'respects equals signs in values')
@@ -55,6 +73,8 @@ t.equal(parsed.RETAIN_INNER_QUOTES, '{"foo": "bar"}', 'retains inner quotes')
 
 t.equal(parsed.RETAIN_INNER_QUOTES_AS_STRING, '{"foo": "bar"}', 'retains inner quotes')
 
+t.equal(parsed.RETAIN_INNER_QUOTES_AS_BACKTICKS, '{"foo": "bar\'s"}', 'retains inner quotes')
+
 t.equal(parsed.TRIM_SPACE_FROM_UNQUOTED, 'some spaced out string', 'retains spaces in string')
 
 t.equal(parsed.USERNAME, 'therealnerdybeast@example.tld', 'parses email addresses completely')