Fix uninstall and add uninstall test

Author: zooba

.github/workflows/build.yml

@@ -149,6 +149,13 @@ jobs:
 
     - name: 'Launch default runtime'
       run: pymanager exec -m site
+      env:
+        PYMANAGER_DEBUG: true
+
+    - name: 'Uninstall runtime'
+      run: pymanager uninstall -y default
+      env:
+        PYMANAGER_DEBUG: true
 
     - name: 'Emulate first launch'
       run: |

ci/release.yml

@@ -252,6 +252,14 @@ stages:
       - powershell: |
           pymanager exec -m site
         displayName: 'Launch default runtime'
+        env:
+          PYMANAGER_DEBUG: true
+
+      - powershell: |
+          pymanager uninstall -y default
+        displayName: 'Uninstall runtime'
+        env:
+          PYMANAGER_DEBUG: true
 
       - powershell: |
           $i = (mkdir -force test_installs)

src/manage/uninstall_command.py

@@ -26,6 +26,8 @@ def execute(cmd):
     cmd.virtual_env = None
     installed = list(cmd.get_installs())
 
+    self.tags = []
+
     if cmd.purge:
         if cmd.ask_yn("Uninstall all runtimes?"):
             for i in installed:
@@ -61,16 +63,18 @@ def execute(cmd):
     to_uninstall = []
     if not cmd.by_id:
         for tag in cmd.args:
-            if tag.casefold() == "default".casefold():
-                tag = cmd.default_tag
             try:
-                t_or_r = tag_or_range(tag)
+                if tag.casefold() == "default".casefold():
+                    self.tags.append(tag_or_range(cmd.default_tag))
+                else:
+                    self.tags.append(tag_or_range(tag))
             except ValueError as ex:
                 LOGGER.warn("%s", ex)
-                continue
+
+        for tag in self.tags:
             candidates = get_matching_install_tags(
                 installed,
-                t_or_r,
+                tag,
                 default_platform=cmd.default_platform,
             )
             if not candidates: