feat: dzgui 7 alpha

dzgui/init/update.py

@@ -0,0 +1,50 @@
+import requests
+import os
+import subprocess
+import sys
+
+from importlib import resources
+from packaging.version import Version, InvalidVersion
+from pathlib import Path
+
+from dzgui.const.constants import APP_NAME_LOWER, REQUEST_TIMEOUT
+from dzgui.const.endpoints import GITHUB_RELEASES, CODEBERG_RELEASES
+from dzgui.init.prefix import is_prefix_writeable
+
+
+def get_latest_release() -> str | None:
+    tag = None
+    for url in [GITHUB_RELEASES, CODEBERG_RELEASES]:
+        res = requests.get(url, timeout=REQUEST_TIMEOUT)
+        if res.status_code == 200:
+            tag = res.json()["tag_name"]
+            break
+    return tag
+
+def allow_updates(allow: bool) -> bool:
+    if allow is False:
+        return False
+    if allow is True:
+        return is_prefix_writeable()
+
+def check_updates(version: str) -> None:
+    latest = get_latest_release()
+    prefix = sys.prefix
+    if latest is None:
+        return
+    try:
+        if Version(version) >= Version(latest):
+            return
+
+        # TODO: test update logic
+        print("UNIMPLEMENTED: fetches in-app updates")
+        return
+
+        with resources.path(APP_NAME_LOWER, "scripts/update.sh") as path:
+            proc = subprocess.Popen(["/usr/bin/env", "bash", path, latest, prefix])
+            if proc != 0:
+                # TODO: pop a dialog
+                pass
+            sys.exit(proc)
+    except InvalidVersion:
+        return