Fix Build Failure: New libstorage-ng enum

[shundhammer]

Bugzilla

https://bugzilla.suse.com/show_bug.cgi?id=1219804

Problem

Build failure with latest libstorage-ng:

13) Y2Storage::StorageFeature.all contains one entry for each feature from libstorage-ng
    Failure/Error: expect(described_class.all.map(&:to_sym)).to contain_exactly(*constants)

      expected collection contained:  [:UF_BCACHE, :UF_BCACHEFS, :UF_BITLOCKER, :UF_BTRFS, :UF_DASD, :UF_DMRAID, :UF_EXFAT, :UF_EXT2, :UF_E..._ENCRYPTION, :UF_PMEM, :UF_QUOTA, :UF_REISERFS, :UF_SNAPSHOTS, :UF_SWAP, :UF_UDF, :UF_VFAT, :UF_XFS]
      actual collection contained:    [:UF_BCACHE, :UF_BITLOCKER, :UF_BTRFS, :UF_DASD, :UF_DMRAID, :UF_EXFAT, :UF_EXT2, :UF_EXT3, :UF_EXT4,..._ENCRYPTION, :UF_PMEM, :UF_QUOTA, :UF_REISERFS, :UF_SNAPSHOTS, :UF_SWAP, :UF_UDF, :UF_VFAT, :UF_XFS]
      the missing elements were:      [:UF_BCACHEFS]
# ./test/y2storage/storage_feature_test.rb:33:in `block (3 levels) in <top (required)>'

Cause

libstorage-ng now has support for bcachefs, including a new enum value BCACHEFS.

We have a unit test to check if all values of this C++ libstorage-ng enum for storage features are covered on the Ruby side in yast-storage-ng in this map:

https://github.com/yast/yast-storage-ng/blob/master/src/lib/y2storage/storage_feature.rb#L55-L102

The map contains support packages for each storage feature; packages that need to be installed when the feature is used.

Fix

Added a map entry for this new enum value.

What Support Packages are Needed?

Right now none since there is no support for bcachefs in yast-storage-ng for the time being. libstorage may detect it during storage probing, but we will not propose it, and the expert partitioner does not support adding it.

Future Support Packages

There is package bcachefs-tools which will be needed when this is implemented on the Ruby side (in yast-storage-ng), too.

https://build.opensuse.org/package/show/openSUSE:Factory/bcache-tools

Add this Immediately?

No, this might lead to unrecoverable situations if a bcachefs is detected during storage probing, so that package would be requested from the libzypp pool, but it might not be available for the current product.

We would have to add it to OPTIONAL_PACKAGES as well for the time being, but it might be left over there when the feature is implemented, leading to more obscure problems.

https://github.com/yast/yast-storage-ng/blob/master/src/lib/y2storage/storage_feature.rb#L112

For now, it's just in a comment as a reminder to add it in the future.

Related PR

Backport to SLE-15-SP6: PR #1371

[coveralls]

coverage: 97.797% (+0.02%) from 97.782%
when pulling 6794fab on huha-enum-bcachefs
into 50263a9 on master.

[aschnell]

LGTM

[shundhammer]

@ancorgs FYI

I also added a Trello card as a reminder: https://trello.com/c/PT0yG61d

[yast-bot]

✔️ Internal Jenkins job #1145 successfully finished
✔️ Created OBS submit request #1146228