From f53e4ad6bce063f8d4ba14177c450180c6230ef2 Mon Sep 17 00:00:00 2001
From: Ryan Clary <9618975+mrclary@users.noreply.github.com>
Date: Thu, 26 Sep 2024 18:17:31 -0700
Subject: [PATCH] Check previous releases for available asset if latest asset
 is not available.

---
 .../plugins/updatemanager/widgets/update.py   |  2 +-
 spyder/plugins/updatemanager/workers.py       | 79 +++++++++++--------
 2 files changed, 48 insertions(+), 33 deletions(-)

diff --git a/spyder/plugins/updatemanager/widgets/update.py b/spyder/plugins/updatemanager/widgets/update.py
index b1778110036..2a4c5bfa3b6 100644
--- a/spyder/plugins/updatemanager/widgets/update.py
+++ b/spyder/plugins/updatemanager/widgets/update.py
@@ -235,7 +235,7 @@ def _set_installer_path(self):
         asset_info = get_asset_info(self.latest_release)
         self.update_type = asset_info['update_type']
 
-        dirname = osp.join(get_temp_dir(), 'updates', self.latest_release)
+        dirname = osp.join(get_temp_dir(), 'updates', str(self.latest_release))
         self.installer_path = osp.join(dirname, asset_info['name'])
         self.installer_size_path = osp.join(dirname, "size")
 
diff --git a/spyder/plugins/updatemanager/workers.py b/spyder/plugins/updatemanager/workers.py
index 60a64b51597..81dbff7dbed 100644
--- a/spyder/plugins/updatemanager/workers.py
+++ b/spyder/plugins/updatemanager/workers.py
@@ -170,26 +170,10 @@ def __init__(self, stable_only):
         super().__init__()
         self.stable_only = stable_only
         self.latest_release = None
-        self.releases = None
         self.update_available = False
         self.error = None
         self.channel = None
 
-    def _check_update_available(self):
-        """Checks if there is an update available from releases."""
-        # Filter releases
-        releases = self.releases.copy()
-        if self.stable_only:
-            # Only use stable releases
-            releases = [r for r in releases if not r.is_prerelease]
-        logger.debug(f"Available versions: {self.releases}")
-
-        self.latest_release = max(releases) if releases else CURR_VER
-        self.update_available = CURR_VER < self.latest_release
-
-        logger.debug(f"Update available: {self.update_available}")
-        logger.debug(f"Latest release: {self.latest_release}")
-
     def start(self):
         """Main method of the worker."""
         self.error = None
@@ -223,26 +207,57 @@ def start(self):
             data = page.json()
             if url.endswith('releases'):
                 # Github url
-                self.releases = [parse(item['tag_name']) for item in data]
+                releases = [parse(item['tag_name']) for item in data]
             else:
                 # Conda url
                 spyder_data = data['packages'].get('spyder')
                 if spyder_data:
-                    self.releases = [parse(spyder_data["version"])]
-            self.releases.sort()
-
-            self._check_update_available()
-
-            # Check if asset is available for download
-            if url.endswith('releases') and self.update_available:
-                asset_info = get_asset_info(self.latest_release)
-                page = requests.head(asset_info['url'], headers=headers)
-                _rate_limits(page)
-                if page.status_code == 404:
-                    # The asset is not available
-                    self.latest_release = CURR_VER
-                    self.update_available = False
-                    logger.debug(f"Asset is not available: {url}")
+                    releases = [parse(spyder_data["version"])]
+            releases.sort()
+
+            if self.stable_only:
+                # Only use stable releases
+                releases = [r for r in releases if not r.is_prerelease]
+            logger.debug(f"Available versions: {releases}")
+
+            max_release = max(releases) if releases else CURR_VER
+            update_available = CURR_VER < max_release
+
+            logger.debug(f"Update available: {update_available}")
+            logger.debug(f"Latest release: {max_release}")
+
+            # Check if the asset is available for download.
+            # If the asset is not available, then check the next latest
+            # release, and so on until either a new asset is available or there
+            # is no update available.
+            if url.endswith('releases'):
+                asset_available = False
+                while update_available and not asset_available:
+                    asset_info = get_asset_info(max_release)
+                    page = requests.head(asset_info['url'], headers=headers)
+                    _rate_limits(page)
+                    if page.status_code == 302:
+                        # The asset is found
+                        logger.debug(f"Asset available for url: {url}")
+                        asset_available = True
+                    else:
+                        # The asset is not available
+                        logger.debug(
+                            "Asset not available: "
+                            f"{page.status_code} Client Error: {page.reason}"
+                            f" for url: {url}"
+                        )
+                        asset_available = False
+                        releases.remove(max_release)
+
+                        max_release = max(releases) if releases else CURR_VER
+                        update_available = CURR_VER < max_release
+
+                        logger.debug(f"Update available: {update_available}")
+                        logger.debug(f"Latest release: {max_release}")
+
+            self.latest_release = max_release
+            self.update_available = update_available
 
         except SSLError as err:
             error_msg = SSL_ERROR_MSG