libsodium-recipe-update to url

Author: gon

pythonforandroid/recipes/libsodium/__init__.py

@@ -4,10 +4,51 @@
 from multiprocessing import cpu_count
 import sh
 
+from urllib.request import urlopen
+import json
+from pythonforandroid.logger import error
+from os import environ
+
+def get_libsodium_urls():
+    """
+    Retrieves the download url formats for libsodium versions
+
+    Returns dict with version to url format mappings 
+    """
+    releases_url = 'https://api.github.com/repos/jedisct1/libsodium/releases'
+    with urlopen(releases_url) as response:
+        response = response.read().decode()
+    releases = json.loads(response)
+    urls = {}
+    for release in releases:
+        version = release['name']
+        for asset in release['assets']:
+            file_name = 'libsodium-{}.tar.gz'.format(version)
+            if asset['name'] == file_name:
+                download_url = asset['browser_download_url']
+                urls[version] = download_url.replace(version, '{version}')
+                break
+    return urls
+
+try:
+    URLS = get_libsodium_urls()
+except:
+    message = 'failed to get libsodium repo assets'
+    error(message)
+    raise Exception(message)
 
 class LibsodiumRecipe(Recipe):
-    version = '1.0.18'
-    url = 'https://github.com/jedisct1/libsodium/releases/download/{version}-RELEASE/libsodium-{version}.tar.gz'
+    env_version = environ.get('VERSION_libsodium')
+    if not env_version:
+        version = '1.0.16'
+    else:
+        version = env_version
+    try:
+        url = URLS[version]
+    except KeyError:
+        message = 'libsodium {} not found in repo assets'.format(version)
+        error(message)
+        raise Exception(message)
     depends = []
     patches = ['size_max_fix.patch']
     built_libraries = {'libsodium.so': 'src/libsodium/.libs'}