[PATCH v3 00/11] meson: a couple of additions

Hi,

this small patch series backfills in a couple of missing features into
Meson. It also improves test coverage of our Meson-based CI jobs so that
we compile with Meson with Visual Studio and compile fuzzers. CI runs
for GitLab and GitHub can be found at [1] and [2], respectively.

The series is built on top of fbe8d3079d (Git 2.48, 2025-01-10) with
ps/meson-weak-sha1-build at 6a0ee54f9a (meson: provide a summary of
configured backends, 2024-12-30) merged into it.

Changes in v2:
  - Consistently use `meson.has_header_symbol()` to fix warnings for
    features not yet available in Meson 0.61, which is our minimum
    required version.
  - Add another patch that makes use use `--fatal-meson-warnings` so
    that such warnings will cause the build to fail.
  - Fix a bug that made GIT-VERSION-GEN always return tags as version.
  - Adapt the approach we use to populate the project and distribution
    tarball versions.
  - Link to v1: https://lore.kernel.org/r/20250113-b4-pks-meson-additions-v1-0-97f6a93f691d@pks.im (local)

Changes in v3:
  - Fix a commit message typo.
  - Revamp how the distribution tarball is created so that we don't have
    to adapt `GIT-VERSION-GEN` for it.
  - Link to v2: https://lore.kernel.org/r/20250114-b4-pks-meson-additions-v2-0-8d7ec676cfd9@pks.im (local)

Thanks!

Patrick

[1]: https://gitlab.com/gitlab-org/git/-/merge_requests/280
[2]: https://github.com/git/git/pull/1870

---
Patrick Steinhardt (11):
      GIT-VERSION-GEN: simplify computing the dirty marker
      GIT-VERSION-GEN: allow running without input and output files
      meson: populate project version via GIT-VERSION-GEN
      meson: fix dependencies for generated headers
      meson: wire up development environments
      meson: wire up generation of distribution archive
      meson: wire up fuzzers
      meson: make the CSPRNG backend configurable
      meson: fix compilation with Visual Studio
      ci: raise error when Meson generates warnings
      ci: wire up Visual Studio build with Meson

 .github/workflows/main.yml | 52 +++++++++++++++++++++++++++
 .gitlab-ci.yml             | 38 ++++++++++++++++++++
 GIT-VERSION-GEN            | 50 +++++++++++++++-----------
 ci/run-build-and-tests.sh  |  4 ++-
 meson.build                | 88 +++++++++++++++++++++++++++++++++++++---------
 meson_options.txt          |  4 +++
 oss-fuzz/meson.build       | 20 +++++++++++
 7 files changed, 218 insertions(+), 38 deletions(-)

Range-diff versus v2:

 1:  55d804eaaf =  1:  60298f9c26 GIT-VERSION-GEN: simplify computing the dirty marker
 2:  617527f489 =  2:  91d302da94 GIT-VERSION-GEN: allow running without input and output files
 3:  d1566ba566 !  3:  806c05dfb1 meson: populate project version via GIT-VERSION-GEN
    @@ Commit message
         meson: populate project version via GIT-VERSION-GEN
     
         The Git version for Meson is currently wired up manually. It can thus
    -    grow (and alread has grown) stale quite easily, as having multiple
    +    grow (and already has grown) stale quite easily, as having multiple
         sources of truth is never a good idea. This issue is mostly of cosmetic
         nature as we don't use the project version anywhere, and instead use the
         GIT-VERSION-GEN script to propagate the correct version into our build.
 4:  bf3063ff51 =  4:  dd3abd3dca meson: fix dependencies for generated headers
 5:  5ba393fa8e =  5:  cb78c1d7d3 meson: wire up development environments
 6:  f4e076bed7 <  -:  ---------- meson: wire up generation of distribution archive
 -:  ---------- >  6:  715da14a23 meson: wire up generation of distribution archive
 7:  4e30bf0bb6 =  7:  9c5b82dd45 meson: wire up fuzzers
 8:  af5ec69b3a =  8:  393ea8a671 meson: make the CSPRNG backend configurable
 9:  82ff90ff8b =  9:  6d1a2b1978 meson: fix compilation with Visual Studio
10:  f9d2f1b9f6 = 10:  3142fdab0b ci: raise error when Meson generates warnings
11:  c9d480ddc6 = 11:  6c339cd012 ci: wire up Visual Studio build with Meson

---
base-commit: 35a417ddf0eab983e4d5eb69e628aa198114bb05
change-id: 20250107-b4-pks-meson-additions-055c16b3052b