Apt-cache show returns exit code 0 when version not found for a package

[Ewa Marek <Ewa.Marek@nanoporetech.com>]

Hello!

 

Using apt `2.3.9ubuntu0.1` (impish) and earlier, I’m getting the exit code 100 for both, non-existent package, and non-existent version:

```

$ apt-cache show badpackage=badversion; echo $?

N: Unable to locate package badpackage

E: No packages found

100

$ apt-cache show bash=badversion; echo $?

E: Version 'badversion' for 'bash' was not found

E: No packages found

100

```

But using apt version `2.4.13` (jammy), I’m getting exit code 0 for a non-existent version:

```

$ apt-cache show badpackage=badversion; echo $?

N: Unable to locate package badpackage

E: No packages found

100

$ apt-cache show bash=badversion; echo $?

N: Version 'badversion' for 'bash' was not found

N: No packages found

0

```

Is this an intended change in behaviour? Why would we consider package not found an error, but version not found a success?

 

Best regards,

Ewa

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