[new release] obuilder and obuilder-spec (0.4)

[tmcgilchrist]

Run build scripts for CI

• Project page: https://github.com/ocurrent/obuilder
• Documentation: https://ocurrent.github.io/obuilder/

CHANGES:

• Use GNU tar format instead of UStar for copy operations (@TheLortex Fix tar transfer: use GNU tar format instead of UStar for copy operations ocurrent/obuilder#82, reviewed @dra27).
  This enables copying from sources containing long file names (>100 characters).

• Add support for secrets (@TheLortex Add support for secrets ocurrent/obuilder#63, reviewed by @talex5).
  The obuilder spec's run command supports a new secrets fields, which allows to temporarily
  mount secret files in an user-specified location. The sandbox build context has an additional
  secrets parameter to provide values for the requested keys.

• Limit permissions on temporary directories (@talex5 Limit permissions on temporary directories ocurrent/obuilder#67)

• Check Linux kernel version support for btrfs (@kit-ty-kate btrfs: Check that the current kernel version will not have issues down the line ocurrent/obuilder#68)

• Generalise obuilder sandbox, removing runc/linux specifc pieces and
  making the S.SANDBOX interface more general
  (@patricoferris generalise the sandbox ocurrent/obuilder#58, reviewed by @talex5, @avsm, @MisterDA)

• Convert --fast-sync back to a flag (@talex5 Convert --fast-sync back to a flag ocurrent/obuilder#72)

• Support Fmt.cli and Logs.cli flags. (@MisterDA Support Fmt.cli and Logs.cli ocurrent/obuilder#74, reviewed by @talex5)
  For Fmt the new options are --color=always|never|auto
  For Log the new options are:
  -v, --verbose Increase verbosity
  --verbosity=LEVEL (absent=warning)
  Be more or less verbose. LEVEL must be one of quiet, error,
  warning, info or debug. Takes over -v.

• Minor cleanup changes (@talex5 Some minor changes from the Docker branch ocurrent/obuilder#76)

• Fix deprecations in Fmt 0.8.10 (@tmcgilchrist Fix deprecations in Fmt 0.8.10 ocurrent/obuilder#80)

• Remove travis-ci and replace with Github Actions (@MisterDA Replace Travis with GitHub Actions ocurrent/obuilder#84)

• Add RSync store backend for obuilder to support macOS builders (@patricoferris Rsync store backend ocurrent/obuilder#88, reviewed @talex5)

• Fixes for ZFS tests in CI (@patricoferris Fix ZFS tests in CI ocurrent/obuilder#91)

[mseri]

ocluster.0.1 fails with

- File "bin/worker.ml", line 130, characters 33-38:
- 130 |     Term.pure make $ fast_sync $ store
-                                        ^^^^^
- Error: This expression has type
-          [ `Btrfs of string | `Rsync of string | `Zfs of string ] option
-          Cmdliner.Term.t
-        but an expression was expected of type
-          [ `Btrfs of string | `Zfs of string ] option Cmdliner.Term.t
-        The second variant type does not allow tag(s) `Rsync

Does it need an upper bound on obuilder?

[mseri]

Can you please add a license field to both packages?

[kit-ty-kate]

Thanks! Could you return the fixes to the opam files in the source repository upstream?