PyPy macOS: Fix Argv Encoding

Trying to fix the macOS PyPy 3.7 error seen in #37

recipe/2726.patch

@@ -0,0 +1,134 @@
+From 74ce023ec98a3e2c01a91e8c23fa58cd8ac5e4e3 Mon Sep 17 00:00:00 2001
+From: Axel Huebl <axel.huebl@plasma.ninja>
+Date: Fri, 7 Jan 2022 06:28:12 -0800
+Subject: [PATCH] Python: Argv Encoding ASCII
+
+Since we pass those arguments to argc/argv in C in the end, we might
+want to stay with ASCII. Otherwise, the interpretation might not fit
+the local encoding.
+
+Alternatively, we can try encoding to `locale.getpreferredencoding()`
+or setting the encoding forced to UTF-8.
+---
+ Python/pywarpx/_libwarpx.py | 32 ++++++++++++++++----------------
+ 1 file changed, 16 insertions(+), 16 deletions(-)
+
+diff --git a/Python/pywarpx/_libwarpx.py b/Python/pywarpx/_libwarpx.py
+index 9de8227397..925a276985 100755
+--- a/Python/pywarpx/_libwarpx.py
++++ b/Python/pywarpx/_libwarpx.py
+@@ -392,14 +392,14 @@ def get_nattr_species(self, species_name):
+
+         '''
+         return self.libwarpx_so.warpx_nCompsSpecies(
+-            ctypes.c_char_p(species_name.encode('utf-8')))
++            ctypes.c_char_p(species_name.encode('ascii')))
+
+     def amrex_init(self, argv, mpi_comm=None):
+         # --- Construct the ctype list of strings to pass in
+         argc = len(argv)
+         argvC = (_LP_c_char * (argc+1))()
+         for i, arg in enumerate(argv):
+-            enc_arg = arg.encode('utf-8')
++            enc_arg = arg.encode('ascii')
+             argvC[i] = ctypes.create_string_buffer(enc_arg)
+
+         if mpi_comm is None or MPI is None:
+@@ -620,7 +620,7 @@ def add_particles(self, species_name, x=None, y=None, z=None, ux=None, uy=None,
+             attr[:,self.get_particle_comp_index(species_name, key)-3] = vals
+
+         self.libwarpx_so.warpx_addNParticles(
+-            ctypes.c_char_p(species_name.encode('utf-8')), x.size,
++            ctypes.c_char_p(species_name.encode('ascii')), x.size,
+             x, y, z, ux, uy, uz, nattr, attr, unique_particles
+         )
+
+@@ -642,7 +642,7 @@ def get_particle_count(self, species_name):
+
+         '''
+         return self.libwarpx_so.warpx_getNumParticles(
+-            ctypes.c_char_p(species_name.encode('utf-8'))
++            ctypes.c_char_p(species_name.encode('ascii'))
+         )
+
+     def get_particle_structs(self, species_name, level):
+@@ -670,7 +670,7 @@ def get_particle_structs(self, species_name, level):
+         particles_per_tile = _LP_c_int()
+         num_tiles = ctypes.c_int(0)
+         data = self.libwarpx_so.warpx_getParticleStructs(
+-            ctypes.c_char_p(species_name.encode('utf-8')), level,
++            ctypes.c_char_p(species_name.encode('ascii')), level,
+             ctypes.byref(num_tiles), ctypes.byref(particles_per_tile)
+         )
+
+@@ -710,8 +710,8 @@ def get_particle_arrays(self, species_name, comp_name, level):
+         particles_per_tile = _LP_c_int()
+         num_tiles = ctypes.c_int(0)
+         data = self.libwarpx_so.warpx_getParticleArrays(
+-            ctypes.c_char_p(species_name.encode('utf-8')),
+-            ctypes.c_char_p(comp_name.encode('utf-8')),
++            ctypes.c_char_p(species_name.encode('ascii')),
++            ctypes.c_char_p(comp_name.encode('ascii')),
+             level, ctypes.byref(num_tiles), ctypes.byref(particles_per_tile)
+         )
+
+@@ -883,8 +883,8 @@ def get_particle_comp_index(self, species_name, pid_name):
+
+         '''
+         return self.libwarpx_so.warpx_getParticleCompIndex(
+-            ctypes.c_char_p(species_name.encode('utf-8')),
+-            ctypes.c_char_p(pid_name.encode('utf-8'))
++            ctypes.c_char_p(species_name.encode('ascii')),
++            ctypes.c_char_p(pid_name.encode('ascii'))
+         )
+
+     def add_real_comp(self, species_name, pid_name, comm=True):
+@@ -901,8 +901,8 @@ def add_real_comp(self, species_name, pid_name, comm=True):
+
+         '''
+         self.libwarpx_so.warpx_addRealComp(
+-            ctypes.c_char_p(species_name.encode('utf-8')),
+-            ctypes.c_char_p(pid_name.encode('utf-8')), comm
++            ctypes.c_char_p(species_name.encode('ascii')),
++            ctypes.c_char_p(pid_name.encode('ascii')), comm
+         )
+
+     def get_particle_boundary_buffer_size(self, species_name, boundary):
+@@ -925,7 +925,7 @@ def get_particle_boundary_buffer_size(self, species_name, boundary):
+
+         '''
+         return self.libwarpx_so.warpx_getParticleBoundaryBufferSize(
+-            ctypes.c_char_p(species_name.encode('utf-8')),
++            ctypes.c_char_p(species_name.encode('ascii')),
+             self.get_boundary_number(boundary)
+         )
+
+@@ -958,7 +958,7 @@ def get_particle_boundary_buffer_structs(self, species_name, boundary, level):
+         particles_per_tile = _LP_c_int()
+         num_tiles = ctypes.c_int(0)
+         data = self.libwarpx_so.warpx_getParticleBoundaryBufferStructs(
+-                ctypes.c_char_p(species_name.encode('utf-8')),
++                ctypes.c_char_p(species_name.encode('ascii')),
+                 self.get_boundary_number(boundary), level,
+                 ctypes.byref(num_tiles), ctypes.byref(particles_per_tile)
+         )
+@@ -1005,16 +1005,16 @@ def get_particle_boundary_buffer(self, species_name, boundary, comp_name, level)
+         num_tiles = ctypes.c_int(0)
+         if comp_name == 'step_scraped':
+             data = self.libwarpx_so.warpx_getParticleBoundaryBufferScrapedSteps(
+-                ctypes.c_char_p(species_name.encode('utf-8')),
++                ctypes.c_char_p(species_name.encode('ascii')),
+                 self.get_boundary_number(boundary), level,
+                 ctypes.byref(num_tiles), ctypes.byref(particles_per_tile)
+             )
+         else:
+             data = self.libwarpx_so.warpx_getParticleBoundaryBuffer(
+-                ctypes.c_char_p(species_name.encode('utf-8')),
++                ctypes.c_char_p(species_name.encode('ascii')),
+                 self.get_boundary_number(boundary), level,
+                 ctypes.byref(num_tiles), ctypes.byref(particles_per_tile),
+-                ctypes.c_char_p(comp_name.encode('utf-8'))
++                ctypes.c_char_p(comp_name.encode('ascii'))
+             )
+
+         particle_data = []

recipe/meta.yaml

@@ -10,6 +10,10 @@ package:
 source:
   url: https://github.com/ECP-WarpX/WarpX/archive/{{ version }}.tar.gz
   sha256: {{ sha256 }}
+  patches:
+    # Fix encoding issues when passing inputs to AMReX
+    # https://github.com/ECP-WarpX/WarpX/pull/2726
+    - 2726.patch
 
 build:
   number: {{ build }}