Update the release scripts to deal with 3.8 and new filenames (#7732)

Author: msullivan

misc/download-mypyc-wheels.py

@@ -9,14 +9,14 @@
 
 
 PLATFORMS = [
-    'macosx_10_6_x86_64.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64',
+    'macosx_10_{macos_ver}_x86_64',
     'manylinux1_x86_64',
     'win_amd64',
 ]
 MIN_VER = 5
-MAX_VER = 7
+MAX_VER = 8
 BASE_URL = "https://github.com/mypyc/mypy_mypyc-wheels/releases/download"
-URL = "{base}/v{version}/mypy-{version}-cp3{pyver}-cp3{pyver}m-{platform}.whl"
+URL = "{base}/v{version}/mypy-{version}-cp3{pyver}-cp3{pyver}{abi_tag}-{platform}.whl"
 
 def download(url):
     print('Downloading', url)
@@ -29,11 +29,15 @@ def download(url):
 def download_files(version):
     for pyver in range(MIN_VER, MAX_VER + 1):
         for platform in PLATFORMS:
+            abi_tag = "" if pyver >= 8 else "m"
+            macos_ver = 9 if pyver >= 8 else 6
             url = URL.format(
                 base=BASE_URL,
                 version=version,
                 pyver=pyver,
-                platform=platform)
+                abi_tag=abi_tag,
+                platform=platform.format(macos_ver=macos_ver)
+            )
             # argh, there is an inconsistency here and I don't know why
             if 'win_' in platform:
                 parts = url.rsplit('/', 1)

misc/upload-pypi.py

@@ -124,7 +124,12 @@ def make_sdist(self) -> None:
 
     def download_compiled_wheels(self) -> None:
         self.heading('Downloading wheels compiled with mypyc')
-        self.run_in_virtualenv('misc/download-mypyc-wheels.py %s' % self.version)
+        # N.B: We run the version in the current checkout instead of
+        # the one in the version we are releasing, in case we needed
+        # to fix the script.
+        self.run_in_virtualenv(
+            '%s %s' %
+            (os.path.abspath('misc/download-mypyc-wheels.py'), self.version))
 
     def upload_wheels(self) -> None:
         self.heading('Uploading wheels')