Cannot change existing environment variable

[mischajonker]

Once an environment variable already exists, we cannot override it anymore.

.env file:

TEST=foo

Script executed in runme.dev:

export TEST=bar
echo ${TEST}
export TEST_2=foo
export TEST_2=bar
echo ${TEST_2}

Expected result:

bar
bar

Actual result:

foo
bar

A similar situation happens when sourcing another script that sets environment variables. These environment variables can also not be overridden.

[jlewi]

@mischajonker Is this the same issue as #653 ? That issue has a long discussion on environment variable behavior.

[mischajonker]

Thank you @jlewi . Yes, it seems to be the same issue indeed.

It looks like the proposed shell option in #653 would solve it for my use case.

The current behavior with promptEnv=no is a bit counterintuitive (at least for me), because it only allows setting an environment variable once; I think a new switch is being proposed that would separate the prompt from the "do not allow updating environment variable" behavior, but I can't entirely parse what is being proposed in the ticket.

[sourishkrout]

Please find the response/discussion here: #653 (comment)