replaced gitpython by git subcommand in workflow

.github/workflows/release.yml

@@ -21,13 +21,14 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install discord-webhook GitPython
+        pip install discord-webhook 
 
     - name: Set tag name
       id: tag
       run: |
         echo "::set-output name=version::${GITHUB_REF#refs/tags/}"
 
+    # we don't build it, we provide it in ./tools
     # - uses: goto-bus-stop/setup-zig@v2
     #   with:
     #     version: master

tools/announceybot/announceybot.py

@@ -1,7 +1,6 @@
 import sys
 import os
 from discord_webhook import DiscordWebhook
-from git import Repo
 import subprocess
 
 URL = os.getenv("WEBHOOK_URL")
@@ -18,9 +17,14 @@ def send_to_discord(message):
 
 
 def get_tag_annotation(tagname):
-    repo = Repo('.')
-    tag = repo.tags[tagname]
-    return tag.tag.message
+    ret = subprocess.run([
+        "git",
+        "-l", 
+        "--format='%(contents)'",
+        f"{TAG_NAME}",
+        ], capture_output=True)
+    text = ret.stdout.decode("utf-8")
+    return text
 
 
 def get_replacement():

tools/announceybot/generate_releasenotes.py

@@ -7,9 +7,14 @@ TAG_NAME = os.getenv("TAG_NAME", sys.argv[1])
 
 
 def get_tag_annotation(tagname):
-    repo = Repo('.')
-    tag = repo.tags[tagname]
-    return tag.tag.message
+    ret = subprocess.run([
+        "git",
+        "-l", 
+        "--format='%(contents)'",
+        f"{TAG_NAME}",
+        ], capture_output=True)
+    text = ret.stdout.decode("utf-8")
+    return text
 
 
 def get_replacement():