[gentoo-dev] [PATCH v3 0/5] Zig: new eclasses, rewrite existing ebuilds to use them

[Eric Joldasov <bratishkaerik@landless-city.net>]

Hello everyone,

This patch series adds 2 new eclasses for better integration with the
Zig toolchain and rewrites ebuilds in `::gentoo` repository to use them.

The `zig-utils.eclass` is designed for other eclasses and ebuilds that
directly call `zig` command (like `zig.eclass` which runs `zig build`,
or some packages in wild that have `zig build-exe` in their Makefiles
or something similar). It is fairly low-level compared to `zig.eclass`,
so for most Zig projects ebuild authors shoud use latter instead.

The `zig.eclass` works with `build.zig` system, called ZBS here to
highlight distinction between it and `zig build-exe` command or other
build systems with Zig support. It manages dependencies integration for
official package manager and options configuration system (some basic
options with sane defaults that can be combined with additional
options from ebuild authors and users) and makes packaging more
convenient by automatically exporting required dependencies and phase
functions.

This is 3-rd version, with changes requested on GitHub PR.
Big thanks to Michał Górny and Sam James for their review comments there.

I won't attach interdiff here (it's unreadable IMHO, mostly because of
renamings), so instead I wrote small overview:
 * Eclasses renamed: `zig-toolchain` to `zig-utils`, `zig-build` to `zig`.
   Some functions are also renamed, for example `init_base_args` to `setup`.
 * Target and CPU convertion functions now accept 2-nd required
   argument with `CFLAGS`-like value, for more precise convertion and
   needed by new `ZIG_CPU` logic. CPU convertion logic was added for
   more arches. Both functions are now also covered by tests (can
   optionally compile and run Zig code with resulting target and CPU).
 * `ZIG_CPU` now defaults to "value converted from CHOST and CFLAGS
   rather" than `native`, to be more consistent with existing policies
   and other ecosystems.
 * `src_install` does not change CWD when using `einstalldocs` anymore.
 * Other functions were rewritten for simplicity or readability without
   significant changes in behaviour (maybe I forgot some changes).   

Eric Joldasov (5):
  zig-utils.eclass: new eclass
  zig.eclass: new eclass
  dev-lang/zig: add 0.13.0-r2
  dev-lang/zig: sync 9999 with 0.13.0-r2
  sys-fs/ncdu: add 2.7-r1

 ....13.0-skip-test-stack_iterator.patch (new) |  32 +
 dev-lang/zig/zig-0.13.0-r2.ebuild (new)       | 248 ++++++++
 dev-lang/zig/zig-9999.ebuild                  | 243 ++++----
 eclass/tests/zig-utils.sh (new +x)            | 320 ++++++++++
 eclass/zig-utils.eclass (new)                 | 538 +++++++++++++++++
 eclass/zig.eclass (new)                       | 558 ++++++++++++++++++
 sys-fs/ncdu/ncdu-2.7-r1.ebuild (new)          |  52 ++
 7 files changed, 1873 insertions(+), 118 deletions(-)
 create mode 100644 dev-lang/zig/files/zig-0.13.0-skip-test-stack_iterator.patch
 create mode 100644 dev-lang/zig/zig-0.13.0-r2.ebuild
 create mode 100755 eclass/tests/zig-utils.sh
 create mode 100644 eclass/zig-utils.eclass
 create mode 100644 eclass/zig.eclass
 create mode 100644 sys-fs/ncdu/ncdu-2.7-r1.ebuild

-- 
2.47.0