RFR: JDK-8230920: jpackage problems when -input dir contains any files with "cfg" extension.

[Alexey Semenyuk]

On 9/17/2019 3:17 PM, Andy Herrick wrote:
> Please review the jpackage fix for bug [1] at [2].
>
> This is a fix for the JDK-8200758-branch branch of the open sandbox 
> repository (jpackage).
>
> On Windows  when building MSI, the original application name was 
> determined by looking into the /app dir for a ".cfg" file.
>
> The problem was that:
>
>  - There may be application files with ".cfg" extension.
>
>  - There may be multiple ".cfg" files due to --add-launcher option(s)
>
> Instead we create an "<application name>.id" in the root of the 
> app-image , to insure we can derive application name from app-image.
`<application name>.id` will be another well known file. Why it is 
better than `app/<application name>.cfg`? Because there can be multiple 
`app/<application name>.cfg` files and only a single `<application 
name>.id`? What will prevent people from creating their own .id files?
I don't like this solution, to be honest. Its only benefit is that it is 
simple. Can we instead put some data in `app/<application name>.cfg` 
file for the main launcher when building app image so that bundle 
packagers can read all .cfg files and find the one that corresponds to 
the main launcher and thus get application name?

- Alexey
>
> [1] https://bugs.openjdk.java.net/browse/JDK-8230920
> [2] http://cr.openjdk.java.net/~herrick/8230920
>
>
> Thanks
>
> Andy,
>