chore: fix Python 3.8 compatibility issue

.devcontainer/Dockerfile

@@ -6,6 +6,10 @@ ARG PYTHON_VERSION=3.12
 
 FROM python:${PYTHON_VERSION} as dev
 
+# NOTE: python docker image has env `PYTHON_VERSION` but with patch version.
+# ARG is used here for temporary override without changing the original env.
+ARG PYTHON_VERSION
+
 RUN apt-get update && apt-get install -y --no-install-recommends \
 #   pipx: To install Python applications.
     pipx \
@@ -22,7 +26,11 @@ ENV PIPX_DEFAULT_PYTHON=/usr/local/bin/python
 RUN pipx install pdm==2.12.4
 
 # Install pre-commit
-RUN pipx install pre-commit==3.6.2
+RUN if [ "${PYTHON_VERSION}" = "3.8" ]; then \
+        pipx install pre-commit==3.5.0; \
+    else \
+        pipx install pre-commit==3.6.2; \
+    fi
 
 # Create a non-root user with sudo permission
 ARG USERNAME=ss-python
@@ -60,7 +68,7 @@ FROM python:${PYTHON_VERSION}-slim as prod
 
 # NOTE: python docker image has env `PYTHON_VERSION` but with patch version.
 # ARG is used here for temporary override without changing the original env.
-ARG PYTHON_VERSION=3.12
+ARG PYTHON_VERSION
 
 # Retrieve packages from build stage.
 ENV PYTHONPATH=/workspace/pkgs

.renovaterc.json

@@ -9,7 +9,7 @@
                 "^template\\/\\.devcontainer/Dockerfile\\.jinja$"
             ],
             "matchStrings": [
-                "RUN pipx install (?<depName>.*?)==(?<currentValue>.*?)\n"
+                "pipx install (?<depName>.*?)==(?<currentValue>.*?)[;\n]"
             ]
         },
         {
@@ -59,6 +59,14 @@
                 ]
             },
             "semanticCommitScope": "copier-template"
+        },
+        {
+            "description": "Pre-commit 3.5.0 is pinned as the last version supporting Python 3.8.",
+            "enabled": false,
+            "matchCurrentVersion": "==3.5.0",
+            "matchPackageNames": [
+                "pre-commit"
+            ]
         }
     ]
 }

template/.devcontainer/Dockerfile.jinja

@@ -6,6 +6,10 @@ ARG PYTHON_VERSION={{ default_py }}
 
 FROM python:${PYTHON_VERSION} as dev
 
+# NOTE: python docker image has env `PYTHON_VERSION` but with patch version.
+# ARG is used here for temporary override without changing the original env.
+ARG PYTHON_VERSION
+
 RUN apt-get update && apt-get install -y --no-install-recommends \
 #   pipx: To install Python applications.
     pipx \
@@ -22,7 +26,11 @@ ENV PIPX_DEFAULT_PYTHON=/usr/local/bin/python
 RUN pipx install pdm==2.12.4
 
 # Install pre-commit
-RUN pipx install pre-commit==3.6.2
+RUN if [ "${PYTHON_VERSION}" = "3.8" ]; then \
+        pipx install pre-commit==3.5.0; \
+    else \
+        pipx install pre-commit==3.6.2; \
+    fi
 
 # Create a non-root user with sudo permission
 ARG USERNAME={{ repo_name }}
@@ -60,7 +68,7 @@ FROM python:${PYTHON_VERSION}-slim as prod
 
 # NOTE: python docker image has env `PYTHON_VERSION` but with patch version.
 # ARG is used here for temporary override without changing the original env.
-ARG PYTHON_VERSION={{ default_py }}
+ARG PYTHON_VERSION
 
 # Retrieve packages from build stage.
 ENV PYTHONPATH=/workspace/pkgs

template/.renovaterc.json.jinja

@@ -1,3 +1,4 @@
+[% from pathjoin("includes", "version_compare.jinja") import version_higher_than -%]
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
     "customManagers": [
@@ -11,7 +12,7 @@
 [%- endif %]
             ],
             "matchStrings": [
-                "RUN pipx install (?<depName>.*?)==(?<currentValue>.*?)\n"
+                "pipx install (?<depName>.*?)==(?<currentValue>.*?)[;\n]"
             ]
         },
         {
@@ -65,6 +66,14 @@
                 ]
             },
             "semanticCommitScope": "copier-template"
+        },
+        {
+            "description": "Pre-commit 3.5.0 is pinned as the last version supporting Python 3.8.",
+            "enabled": false,
+            "matchCurrentVersion": "==3.5.0",
+            "matchPackageNames": [
+                "pre-commit"
+            ]
         }
     ]
 }