Parsing variables that depend on other variables from file changes starting from version 19.3

[summis]

Current Behavior

If .env file contains

FOO="foo"
FOOBAR="$FOO-bar"

nx reads these as $FOO => foo and $FOOBAR => foo, omitting -bar suffix from the latter

Expected Behavior

It should read suffix correctly so that $FOO => foo and $FOOBAR => foo-bar

GitHub Repo

https://github.com/summis/nx-bug-demo

Steps to Reproduce

See https://github.com/summis/nx-bug-demo/blob/main/README.md

Nx Report

npx nx report

 NX   Report complete - copy this into the issue template

Node   : 22.4.1
OS     : linux-x64
npm    : 10.8.2

nx         : 19.3.2
@nrwl/tao  : 19.3.2

Failure Logs

No response

Package Manager Version

No response

Operating System

• macOS
• Linux
• Windows
• Other (Please specify)

Additional Information

This seems to have something to do with the dash character (-) after the variable. Other character don't have same issue in my limited testing.

[MaxKless]

Hey @summis! Thanks for the report here and the exceptionally simple repro. It really let me track this down very quickly.

The root issue of this is motdotla/dotenv-expand#124 which was introduced when we updated dotenv-expand in #26459.

Until the upstream issue is resolved, you can slightly modify your env variables to go back to the old behaviour. In your example, using

FOO="foo"
FOOBAR="${FOO}-bar"

will return the correct foo foo-bar output once again.

Hope that helps and thanks again for the great-to-work-with issue.

[summis]

Thank you @MaxKless for the rapid investigation and workaround!