Merge #62

62: Make wasmer silently available anywhere r=Hywan a=syrusakbary

## Problem

Python wasmer installation is failing in various systems (mainly because of alpine linux).
syrusakbary/snapshottest#88
syrusakbary/fastdiff#2
syrusakbary/fastdiff#3

One way to make it work very easily is by creating a generic wheel that it's always available but that fails on import (rather than on install).

This PR adds that, and upgrades wasmer to `0.5.6` as well

Co-authored-by: Syrus <me@syrusakbary.com>

.circleci/config.yml

@@ -70,6 +70,7 @@ jobs:
             export PATH="/home/circleci/.pyenv/versions/3.7.3/bin/:$PATH"
             source .env/bin/activate
             just build
+            just wasmer_any
 
       # Run the extension test suites.
       - run:
@@ -124,7 +125,8 @@ jobs:
             export PATH="/home/circleci/.pyenv/versions/3.6.8/bin/:$PATH"
             export PATH="/home/circleci/.pyenv/versions/3.5.7/bin/:$PATH"
             source .env/bin/activate
-            pyo3-pack publish -i python3.7 python3.6 python3.5 -u wasmer
+            just wasmer_any
+            just publish
 
 
 # List of workflows.

.gitignore

@@ -3,4 +3,6 @@
 /.pytest_cache/
 /benchmarks/__pycache__/
 /target
-/tests/__pycache__/
+/tests/__pycache__/
+/wasmer-any/dist
+.DS_Store

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "wasmer"
 version = "0.3.0"
-authors = ["Ivan Enderlin <ivan.enderlin@hoa-project.net>"]
+authors = ["The Wasmer Engineering Team <engineering@wasmer.io>"]
 edition = "2018"
 description = "Python extension to run WebAssembly binaries"
 readme = "README.md"
@@ -15,8 +15,8 @@ name = "wasmer"
 crate-type = ["cdylib"]
 
 [dependencies]
-wasmer-runtime = "0.5.5"
-wasmer-runtime-core = "0.5.5"
+wasmer-runtime = "0.5.6"
+wasmer-runtime-core = "0.5.6"
 pyo3 = { version = "0.7.0", features = ["extension-module"] }
 
 [package.metadata.pyo3-pack]

justfile

@@ -37,6 +37,15 @@ benchmark benchmark-filename='':
 inspect:
 	@python -c "help('wasmer')"
 
+# Create a distribution of wasmer that can be installed
+# anywhere (it will fail on import)
+wasmer_any:
+	mkdir -p ./target/wheels/
+	cd wasmer-any && pip3 wheel . -w ../target/wheels/
+
+publish:
+	pyo3-pack publish -i python3.7 python3.6 python3.5 -u wasmer
+
 # Local Variables:
 # mode: makefile
 # End:

wasmer-any/setup.py

@@ -0,0 +1,24 @@
+from setuptools import setup
+from setuptools.dist import Distribution
+
+# with open('../README.md', 'rb') as f:
+#     readme = f.read().decode('utf-8')
+
+setup(
+    name='wasmer',
+    version='0.3.0',
+    author='The Wasmer Engineering Team',
+    author_email='engineering@wasmer.io',
+    license='MIT',
+    packages=['wasmer'],
+    description='Python extension to run WebAssembly binaries',
+    # long_description=readme,
+    # long_description_content_type='text/markdown',
+    zip_safe=False,
+    platforms='any',
+    classifiers=[
+        "Programming Language :: Python",
+        "License :: OSI Approved :: MIT License",
+        "Operating System :: OS Independent",
+    ],
+)

wasmer-any/wasmer/__init__.py

@@ -0,0 +1 @@
+raise ImportError("Wasmer is not available on this system")