CI: Download DLLs from other repository release

.github/workflows/main.yml

@@ -25,6 +25,10 @@ jobs:
           $Env:FPCDIR = "c:\newpascal\fpcsrc"
           $Env:PATH = "c:\newpascal\fpc\bin\i386-win32;c:\newpascal\binw32;$Env:PATH"
           c:\newpascal\lazarus\lazbuild src\ultrastardx-win.lpi --lazarusdir=c:\newpascal\lazarus
+      - name: Add prebuilt DLLs
+        run: |
+          python dldlls.py
+          7z x -y usdx-dlls.zip -ogame "*.dll"
       - name: Create installer
         run: |
           del game\*.debug

dldlls.py

@@ -0,0 +1,79 @@
+#!/usr/bin/python3
+
+import urllib.request
+import shutil
+import json
+import sys
+import os
+
+sha = '97b88f326c429bccab263f809a16798c3e1ec6b5'
+filename = 'usdx-dlls-i686'
+urlbase = 'https://api.github.com/repos/UltraStar-Deluxe/mxe/'
+headers = {
+    'Accept': 'application/vnd.github+json',
+    'X-GitHub-Api-Version': '2022-11-28'
+    }
+
+token = os.environ.get('ARTIFACT_ACCESS_TOKEN')
+if token != None:
+    headers['Authorization'] = 'Bearer ' + token
+
+print('Searching for binaries built from commit ' + sha)
+
+def search_releases():
+    pagesuffix = ''
+    page = 1
+    links = '"next"'
+    while links != None and links.find('"next"') != -1:
+        req = urllib.request.Request(url = urlbase + 'tags' + pagesuffix,
+                                     headers = headers)
+        rsp = urllib.request.urlopen(req)
+        links = rsp.headers['link']
+        for tag in json.load(rsp):
+            if tag['commit']['sha'] == sha:
+                req = urllib.request.Request(url = urlbase + 'releases/tags/'
+                                                 + tag['name'],
+                                             headers = headers)
+                rsp = urllib.request.urlopen(req)
+                release = json.load(rsp)
+                for asset in release['assets']:
+                    if asset['name'].startswith(filename):
+                        print('Found binaries in release ' + release['name'])
+                        headers.clear()
+                        return asset['browser_download_url']
+        page = page + 1
+        pagesuffix = '?page={}'.format(page)
+    print('No release matches')
+    return None
+
+def search_artifacts():
+    pagesuffix = ''
+    page = 1
+    links = '"next"'
+    while links != None and links.find('"next"') != -1:
+        req = urllib.request.Request(url = urlbase
+                                         + 'actions/artifacts'
+                                         + '?name=' + filename
+                                         + pagesuffix,
+                                     headers = headers)
+        rsp = urllib.request.urlopen(req)
+        links = rsp.headers['link']
+        for artifact in json.load(rsp)['artifacts']:
+            if artifact['workflow_run']['head_sha'] == sha and not artifact['expired']:
+                print('Found binaries in workflow run ' + artifact['workflow_run']['id'])
+                del headers['Accept']
+                return artifact['archive_download_url']
+        page = page + 1
+        pagesuffix = '&page={}'.format(page)
+    print('No workflow artifact matches')
+    return None
+
+dllurl = search_releases()
+if dllurl == None and token != None:
+    dllurl = search_artifacts()
+if dllurl == None:
+    sys.exit(1)
+print('Downloading from ' + dllurl)
+req = urllib.request.Request(url = dllurl, headers = headers)
+shutil.copyfileobj(urllib.request.urlopen(req),
+                   open(filename + '.zip', 'wb'))