Environment variable for certificateChain not supported

[anusreelakshmi934]

What happened?

When trying to configure the plugin signing task using environment variables, passing the raw certificate content to certificateChain.set() fails with Invalid argument, whereas pointing to a file works.

Example that fails:

signing {
    certificateChain.set(System.getenv("CERTIFICATE_CHAIN"))
    privateKey.set(System.getenv("PRIVATE_KEY"))
    password.set(System.getenv("PRIVATE_KEY_PASSWORD"))
}

Error:

Invalid argument: -----BEGIN CERTIFICATE-----
MIIF5zCCA8+gAwIBAgIU...

Example that works:

signing {
    certificateChainFile = file("/Users/.../chain.crt") // path to file
    privateKey.set(System.getenv("PRIVATE_KEY"))
    password.set(System.getenv("PRIVATE_KEY_PASSWORD"))
}

Shouldn't it be possible to pass the certificate content via an environment variable (multi-line string) without having to write it to a file manually?

Steps to reproduce

Set an environment variable CERTIFICATE_CHAIN with the full multi-line certificate content.
Configure signing using certificateChain.set(System.getenv("CERTIFICATE_CHAIN")).
Run ./gradlew verifyPluginSignature.

Gradle IntelliJ Plugin version

2.7.0

Gradle version

8.11.1

Operating System

macOS