[arch] improvement: preventing AUR's installed packages from not being mapped in cases the communication with the API fails

CHANGELOG.md

@@ -7,6 +7,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 ## [0.9.27]
 
 ### Improvements
+- Arch:
+  - preventing AUR's installed packages from not being mapped in cases the communication with the API fails
   - code refactoring (String formatting method)
 
 ### Fixes

bauh/gems/arch/aur.py

@@ -112,12 +112,29 @@ class AURClient:
     def search(self, words: str) -> dict:
         return self.http_client.get_json(URL_SEARCH + words)
 
-    def get_info(self, names: Iterable[str]) -> List[dict]:
+    def get_info(self, names: Iterable[str]) -> Optional[List[dict]]:
         try:
             res = self.http_client.get_json(URL_INFO + self._map_names_as_queries(names))
-            return res['results'] if res and res.get('results') else []
+        except requests.exceptions.ConnectionError:
-        except:
+            self.logger.warning('Could not retrieve installed AUR packages API data. It seems the internet connection is off.')
-            return []
+            return
+
+        if res is None:
+            self.logger.warning("Call to AUR API's info endpoint has failed")
+            return
+
+        error = res.get('error')
+
+        if error:
+            self.logger.warning(f"AUR API's info endpoint returned an unexpected error: {error}")
+            return
+
+        results = res.get('results')
+
+        if results is not None:
+            return results
+
+        self.logger.warning(f"AUR API's info endpoint returned an unexpected response: {res}")
 
     def map_provided(self, pkgname: str, pkgver: str, provided: Optional[Iterable[str]] = None, strip_epoch: bool = True) -> Set[str]:
         all_provided = {pkgname, f"{pkgname}={pkgver.split('-')[0] if strip_epoch else pkgver}"}
@@ -130,7 +147,10 @@ class AURClient:
         return all_provided
 
     def gen_updates_data(self, names: Iterable[str]) -> Generator[Tuple[str, dict], None, None]:
-        for package in self.get_info(names):
+        pkgs_info = self.get_info(names)
+
+        if pkgs_info:
+            for package in pkgs_info:
                 pkgname, pkgver = package['Name'], package['Version'].split('-')[0]
 
                 deps = set()
@@ -215,7 +235,7 @@ class AURClient:
         return self.extract_required_dependencies(info)
 
     def _map_names_as_queries(self, names: Iterable[str]) -> str:
-        return '&'.join(['arg[]={}'.format(urllib.parse.quote(n)) for n in names])
+        return '&'.join((f'arg[]={urllib.parse.quote(n)}' for n in names))
 
     def read_local_index(self) -> dict:
         self.logger.info('Checking if the cached AUR index file exists')

bauh/gems/arch/controller.py

@@ -14,7 +14,6 @@ from pwd import getpwnam
 from threading import Thread
 from typing import List, Set, Type, Tuple, Dict, Iterable, Optional, Collection, Generator
 
-import requests
 from dateutil.parser import parse as parse_date
 
 from bauh import __app_name__
@@ -412,18 +411,39 @@ class ArchManager(SoftwareManager):
         res.update_total()
         return res
 
-    def _fill_aur_pkgs(self, aur_pkgs: dict, output: List[ArchPackage], disk_loader: DiskCacheLoader, internet_available: bool,
+    def _fill_aur_pkgs_offline(self, aur_pkgs: dict,  arch_config: dict, output: List[ArchPackage], disk_loader: Optional[DiskCacheLoader]):
+        self.logger.info("Reading cached data from installed AUR packages")
+
+        editable_pkgbuilds = self._read_editable_pkgbuilds() if arch_config['edit_aur_pkgbuild'] is not False else None
+        for name, data in aur_pkgs.items():
+            pkg = ArchPackage(name=name, version=data.get('version'),
+                              latest_version=data.get('version'), description=data.get('description'),
+                              installed=True, repository='aur', i18n=self.i18n)
+
+            pkg.categories = self.categories.get(pkg.name)
+            pkg.pkgbuild_editable = pkg.name in editable_pkgbuilds if editable_pkgbuilds is not None else None
+
+            if disk_loader:
+                disk_loader.fill(pkg)
+
+            pkg.status = PackageStatus.READY
+            output.append(pkg)
+
+    def _fill_aur_pkgs(self, aur_pkgs: dict, output: List[ArchPackage], disk_loader: Optional[DiskCacheLoader], internet_available: bool,
                        arch_config: dict, rebuild_check: Optional[Thread], rebuild_ignored: Optional[Thread], rebuild_output: Optional[Dict[str, Set[str]]]):
 
-        if internet_available:
+        if not internet_available:
-            try:
+            self._fill_aur_pkgs_offline(aur_pkgs=aur_pkgs, arch_config=arch_config,
-                pkgsinfo = self.aur_client.get_info(aur_pkgs.keys())
+                                        output=output, disk_loader=disk_loader)
-            except requests.exceptions.ConnectionError:
-                self.logger.warning('Could not retrieve installed AUR packages API data. It seems the internet connection is off.')
-                self.logger.info("Reading only local AUR packages data")
             return
 
-            if pkgsinfo:
+        pkgsinfo = self.aur_client.get_info(aur_pkgs.keys())
+
+        if pkgsinfo is None:
+            self._fill_aur_pkgs_offline(aur_pkgs=aur_pkgs, arch_config=arch_config, output=output, disk_loader=disk_loader)
+        elif not pkgsinfo:
+            self.logger.warning("No data found for the supposed installed AUR packages returned from AUR API's info endpoint")
+        else:
             editable_pkgbuilds = self._read_editable_pkgbuilds() if arch_config['edit_aur_pkgbuild'] is not False else None
 
             ignore_rebuild_check = None
@@ -461,22 +481,6 @@ class ArchManager(SoftwareManager):
                 pkg.status = PackageStatus.READY
                 output.append(pkg)
 
-        else:
-            editable_pkgbuilds = self._read_editable_pkgbuilds() if arch_config['edit_aur_pkgbuild'] is not False else None
-            for name, data in aur_pkgs.items():
-                pkg = ArchPackage(name=name, version=data.get('version'),
-                                  latest_version=data.get('version'), description=data.get('description'),
-                                  installed=True, repository='aur', i18n=self.i18n)
-
-                pkg.categories = self.categories.get(pkg.name)
-                pkg.pkgbuild_editable = pkg.name in editable_pkgbuilds if editable_pkgbuilds is not None else None
-
-                if disk_loader:
-                    disk_loader.fill(pkg)
-
-                pkg.status = PackageStatus.READY
-                output.append(pkg)
-
     def _check_aur_package_update(self, pkg: ArchPackage, installed_data: dict, api_data: dict) -> bool:
         if pkg.last_modified is None:  # if last_modified is not available, then the install_date will be used instead
             install_date = installed_data.get('install_date')
@@ -1811,7 +1815,11 @@ class ArchManager(SoftwareManager):
 
         if len(pkgnames) != len(pkg_repos):  # checking if any dep not found in the distro repos are from AUR
             norepos = {p for p in pkgnames if p not in pkg_repos}
-            for pkginfo in self.aur_client.get_info(norepos):
+
+            aur_info = self.aur_client.get_info(norepos)
+
+            if aur_info:
+                for pkginfo in aur_info:
                     if pkginfo.get('Name') in norepos:
                         pkg_repos[pkginfo['Name']] = 'aur'