Files in /etc are overwritten

[datapythonista]

My understanding when reading this doc linked in cargo-deb documentation for conf-files is that anything under /etc will automatically not be overwritten when a package is upgraded.

But given this Cargo.toml section:

[package.metadata.deb]
assets = [
    ["target/release/doc-previewer", "usr/bin/", "755"],
    ["config.toml", "etc/doc-previewer/", "644"],
]

And installing a new version of my package with sudo dpkg -i doc-previewer_0.1.1-1_amd64.deb, the config.toml configuration file is indeed overwritten by the new version one.

Also, after using the conf-files option like this:

conf-files = ["config.toml"]

or this:

conf-files = ["/etc/doc-previewer/config.toml"]

It will also overwrite the file.

Am I doing something wrong? Or is this not working as expected? I'm happy to open a PR to clarify the docs if it's something I'm doing wrong.

Thanks for the amazing work with this btw, I build .deb packages in the past, and I couldn't be happier that this tool exist. :)

[kornelski]

Files listed in assets are always overwriting.

[datapythonista]

Files listed in assets are always overwriting.

Thanks for the information. I tried removing the config file from assets and to add this but doesn't seem to work:

conf-files = [
    ["config.toml", "etc/doc-previewer/", "644"],
]

I don't understand how a configuration file that is not overwritten needs to be specified then.

[kornelski]

Sorry, I was mistaken. The file needs to be listed in assets, since conf-files won't imply inclusion. Unfortunately, I don't know why it's not behaving as expected.

[datapythonista]

Thank you for clarifying and for your help. Knowing that it is expected to preserve the config file when updating I'll have a look and try to understand where is the problem. I'll post here any finding. Thanks!

[JakkuSakura]

Please document conf-files properly.
Which string should I put into conf-files???

Edit: figured out it should be target file path

[kornelski]

Now the conffiles is generated automatically for all assets in etc/