[PATCH v3 00/10] meson: parse TAP output generated by our tests

Hi,

this patch series starts to parse TAP output generated by our tests when executing them via Meson. This has the benefit that Meson starts to understand skipped tests and reports how many subtests have been executed:

    ```
    $ meson test t002*
    ninja: Entering directory `/home/pks/Development/git/build'
     1/10 t0024-crlf-archive                  OK              0.17s   2 subtests passed
     2/10 t0022-crlf-rename                   OK              0.18s   2 subtests passed
     3/10 t0029-core-unsetenvvars             SKIP            0.15s
     4/10 t0023-crlf-am                       OK              0.18s   2 subtests passed
     5/10 t0025-crlf-renormalize              OK              0.21s   3 subtests passed
     6/10 t0026-eol-config                    OK              0.25s   5 subtests passed
     7/10 t0020-crlf                          OK              0.81s   36 subtests passed
     8/10 t0028-working-tree-encoding         OK              0.85s   22 subtests passed
     9/10 t0021-conversion                    OK              3.45s   38 subtests passed
    10/10 t0027-auto-crlf                     OK             26.35s   2600 subtests passed
    
    Ok:                9
    Fail:              0
    Skipped:           1
    ```

This new feature is only enabled with Meson 1.8 and newer, which contains a bugfix that we have upstreamed [1] to make the TAP parser work in `meson test --interactive` mode.

Despite the changes to Meson itself, this patch series also contains a couple of fixes for our test suite that caused us to not generate proper TAP output.

Changes in v2:
  - Add a patch to fix an unexpectedly passing test on macOS.
  - A couple more fixes for broken TAP output.
  - Link to v1: https://lore.kernel.org/r/20250506-pks-meson-tap-v1-0-5aaab2942a4c@pks.im

Changes in v3:
  - Split up the patch that silences output into multiple patches and
    rework them a bit.
  - Remove redirect that was retained by accident from an earlier
    version.
  - Slight rewording of a commit message.
  - Treat unexpected passes as failure in prove(1) and when executing
    the test directly.
  - Link to v2: https://lore.kernel.org/r/20250527-pks-meson-tap-v2-0-ae360f77786e@pks.im

Thanks!

Patrick

[1]: https://github.com/mesonbuild/meson/pull/13980

---
Patrick Steinhardt (10):
      t: stop announcing prereqs
      t: silence output from `test_create_repo()`
      t9822: use prereq to check for ISO-8859-1 support
      t983*: use prereq to check for Python-specific git-b4(1) support
      t/test-lib: don't print shell traces to stdout
      t/test-lib: fix TAP format for BASH_XTRACEFD warning
      t7815: fix unexpectedly passing test on macOS
      test-lib: fail on unexpectedly passing tests
      meson: introduce kwargs variable for tests
      meson: parse TAP output generated by our tests

 contrib/credential/netrc/meson.build         |  2 +-
 contrib/subtree/meson.build                  |  2 +-
 meson.build                                  | 12 +++++++++
 t/meson.build                                |  6 ++---
 t/t0000-basic.sh                             | 39 +++++++++++++++-------------
 t/t0050-filesystem.sh                        | 30 +++++----------------
 t/t1007-hash-object.sh                       |  2 +-
 t/t3600-rm.sh                                |  5 ----
 t/t4000-diff-format.sh                       |  2 +-
 t/t4041-diff-submodule-option.sh             | 22 +++++++++-------
 t/t4060-diff-submodule-option-diff-format.sh |  9 ++++---
 t/t7401-submodule-summary.sh                 | 18 ++++++++-----
 t/t7815-grep-binary.sh                       |  2 +-
 t/t9500-gitweb-standalone-no-errors.sh       | 16 +++++-------
 t/t9822-git-p4-path-encoding.sh              | 13 +++++++---
 t/t9835-git-p4-metadata-encoding-python2.sh  | 24 +++++++++--------
 t/t9836-git-p4-metadata-encoding-python3.sh  | 24 +++++++++--------
 t/t9903-bash-prompt.sh                       |  4 ---
 t/test-lib.sh                                | 18 ++++++++++---
 19 files changed, 133 insertions(+), 117 deletions(-)

Range-diff versus v2:

 1:  b5ae3aba1ad <  -:  ----------- t: fix cases where output breaks TAP format
 -:  ----------- >  1:  15702b96125 t: stop announcing prereqs
 -:  ----------- >  2:  444a5e8a72f t: silence output from `test_create_repo()`
 -:  ----------- >  3:  dd24e16f93c t9822: use prereq to check for ISO-8859-1 support
 -:  ----------- >  4:  5ea96164181 t983*: use prereq to check for Python-specific git-b4(1) support
 2:  69d4b420eb9 =  5:  783cf673a22 t/test-lib: don't print shell traces to stdout
 3:  ec921bbb183 =  6:  726795c9a11 t/test-lib: fix TAP format for BASH_XTRACEFD warning
 4:  e463fb29a8a =  7:  df1be586474 t7815: fix unexpectedly passing test on macOS
 -:  ----------- >  8:  e0b06f9ffcb test-lib: fail on unexpectedly passing tests
 5:  58173827436 =  9:  0f34503b28b meson: introduce kwargs variable for tests
 6:  1242bbf74f3 = 10:  d28b9306b46 meson: parse TAP output generated by our tests

--- base-commit: 845c48a16a7f7b2c44d8cb137b16a4a1f0140229 change-id: 20250429-pks-meson-tap-1eed604a02a3