Rebuild for numpy 2.0 (#69)

* Rebuild for numpy 2.0

TL;DR: The way we build against numpy has changed as of numpy 2.0. This bot
PR has updated the recipe to account for the changes (see below for details).

The biggest change is that we no longer need to use the oldest available numpy
version at build time in order to support old numpy version at runtime - numpy
will by default use a compatible ABI for the oldest still-supported numpy versions.

Additionally, we no longer need to use `{{ pin_compatible("numpy") }}` as a
run requirement - this has been handled for more than two years now by a
run-export on the numpy package itself. The migrator will therefore remove
any occurrences of this.

However, you will still need to add the lower bound for the numpy version,
in line with what the upstream package requires. The default lower bound from
the run-export is `>=1.19`; if your package needs a newer version than that,
please add `numpy >=x.y` under `run:`.

Finally, by default, building against numpy 2.0 will assume that the package
is compatible with numpy 2.0, which is not necessarily the case. You should
check that the upstream package explicitly supports numpy 2.0, otherwise you
need to add a `- numpy <2.0dev0` run requirement until that happens (check numpy
issue 26191 for an overview of the most important packages).

### To-Dos:
  * [ ] Match run-requirements for numpy (i.e. check upstream `pyproject.toml` or however the project specifies numpy compatibility)
    * If upstream is not yet compatible with numpy 2.0, add `numpy <2.0dev0` upper bound under `run:`.
    * If upstream is already compatible with numpy 2.0, double-check their supported numpy versions.
    * If upstream requires a minimum numpy version newer than 1.19, you need to add `numpy >=x.y` under `run:`.
  * [ ] Remove any remaining occurrences of `{{ pin_compatible("numpy") }}` that the bot may have missed.

PS. If the build does not compile anymore, this is almost certainly a sign that
the upstream project is not yet ready for numpy 2.0; do not close this PR until
a version compatible with numpy 2.0 has been released upstream and on this
feedstock (in the meantime, you can keep the bot from reopening this PR in
case of git conflicts by marking it as a draft).

* MNT: Re-rendered with conda-build 24.7.1, conda-smithy 3.39.1, and conda-forge-pinning 2024.09.16.19.13.37

* Update conda_build_config.yaml -- pychrono pin to 9

* Update meta.yaml -- update build number properly

---------

Co-authored-by: Chris Kees <613654+cekees@users.noreply.github.com>

.ci_support/migrations/numpy2.yaml

@@ -0,0 +1,52 @@
+__migrator:
+  build_number: 1
+  kind: version
+  commit_message: |
+    Rebuild for numpy 2.0
+    
+    TL;DR: The way we build against numpy has changed as of numpy 2.0. This bot
+    PR has updated the recipe to account for the changes (see below for details).
+    
+    The biggest change is that we no longer need to use the oldest available numpy
+    version at build time in order to support old numpy version at runtime - numpy
+    will by default use a compatible ABI for the oldest still-supported numpy versions.
+    
+    Additionally, we no longer need to use `{{ pin_compatible("numpy") }}` as a
+    run requirement - this has been handled for more than two years now by a
+    run-export on the numpy package itself. The migrator will therefore remove
+    any occurrences of this.
+    
+    However, you will still need to add the lower bound for the numpy version,
+    in line with what the upstream package requires. The default lower bound from
+    the run-export is `>=1.19`; if your package needs a newer version than that,
+    please add `numpy >=x.y` under `run:`.
+    
+    Finally, by default, building against numpy 2.0 will assume that the package
+    is compatible with numpy 2.0, which is not necessarily the case. You should
+    check that the upstream package explicitly supports numpy 2.0, otherwise you
+    need to add a `- numpy <2.0dev0` run requirement until that happens (check numpy
+    issue 26191 for an overview of the most important packages).
+    
+    ### To-Dos:
+      * [ ] Match run-requirements for numpy (i.e. check upstream `pyproject.toml` or however the project specifies numpy compatibility)
+        * If upstream is not yet compatible with numpy 2.0, add `numpy <2.0dev0` upper bound under `run:`.
+        * If upstream is already compatible with numpy 2.0, double-check their supported numpy versions.
+        * If upstream requires a minimum numpy version newer than 1.19, you need to add `numpy >=x.y` under `run:`.
+      * [ ] Remove any remaining occurrences of `{{ pin_compatible("numpy") }}` that the bot may have missed.
+    
+    PS. If the build does not compile anymore, this is almost certainly a sign that
+    the upstream project is not yet ready for numpy 2.0; do not close this PR until
+    a version compatible with numpy 2.0 has been released upstream and on this
+    feedstock (in the meantime, you can keep the bot from reopening this PR in
+    case of git conflicts by marking it as a draft).
+
+  migration_number: 1
+
+# needs to match length of zip {python, python_impl, numpy}
+# as it is in global CBC in order to override it
+numpy:
+  - 2.0
+  - 2.0
+  - 2.0
+  - 2.0
+migrator_ts: 1713572489.295986

recipe/conda_build_config.yaml

@@ -1,4 +1,4 @@
 mpi:
   - mpich
 pychrono:
-  - 7
+  - 9

recipe/meta.yaml

@@ -1,6 +1,6 @@
 {% set name = "proteus" %}
 {% set version = "1.8.3" %}
-{% set build = 0 %}
+{% set build = 1 %}
 {% set sha256 = "315f0600044e2ad86592c248a9a4ca87dc58c1d678af2c27a9ddde802b555618" %}
 
 package:
@@ -69,7 +69,6 @@ requirements:
     - {{ pin_compatible('openblas', max_pin='x.x') }}
     - {{ pin_compatible('petsc4py', max_pin='x.x') }}
     - {{ pin_compatible('cython', max_pin='x.x') }}
-    - {{ pin_compatible('numpy') }}
     # pinning from conda_build_config and build pinning from {{ mpi_prefix }}
     - hdf5
     - hdf5 * {{ mpi_prefix }}_*