case 4757 - manual revision stamp and copyright year set automatically when the manuals are built

A MkDocs hook (docs/8.0/rev_date.py), used by both manuals, replaces REV-AUTO
and YEAR-AUTO in the copyright line with the date of the last commit that
changed that manual, or today if it has uncommitted changes or git is not
available. A missing placeholder fails the strict build. The customer manual's
stamp had not been updated since 2022. The home page sentence about the stamp
no longer reads like a placeholder. Release procedure step 2, the docs
Dockerfile usage lines and .gitignore (__pycache__) follow.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/8.0/ayanova/docs/index.md

@@ -18,9 +18,7 @@ You may be viewing an older local version of this manual that was installed with
 
 The most recent manual can always be viewed on our website at [https://www.ayanova.com/docs/](https://www.ayanova.com/docs/)
 
-You can tell which version of the manual you are viewing by look at the revision stamp at the bottom of the page which shows the year month and day that copy of the manual was last updated:
-
-`REV-YYYY-MM-DD `
+You can tell which version of the manual you are viewing by looking at the revision stamp at the bottom of the page: `REV-` followed by the year, month and day this copy of the manual was last changed.
 
 ### Beyond this manual
 

docs/8.0/ayanova/mkdocs.yml

@@ -8,7 +8,10 @@ site_name: AyaNova manual
 site_dir: "../../../server/AyaNova/wwwroot/docs"
 site_url: https://ayanova.com/docs/
 strict: true
-copyright: Copyright © 2022-2026 Ground Zero Tech-Works Inc. REV-2026-10-26
+# YEAR-AUTO and REV-AUTO are set when the manual is built (../rev_date.py)
+copyright: Copyright © 2022-YEAR-AUTO Ground Zero Tech-Works Inc. REV-AUTO
+hooks:
+  - ../rev_date.py
 extra:
   generator: false
 # Extensions

docs/8.0/customer/mkdocs.yml

@@ -8,7 +8,10 @@ theme:
 site_name: AyaNova Customer user manual
 site_dir: '../../../server/AyaNova/wwwroot/cust'
 strict: true
-copyright: Copyright © 2022 Ground Zero Tech-Works Inc. REV-2022-07-18
+# YEAR-AUTO and REV-AUTO are set when the manual is built (../rev_date.py)
+copyright: Copyright © 2022-YEAR-AUTO Ground Zero Tech-Works Inc. REV-AUTO
+hooks:
+  - ../rev_date.py
 extra:  
   generator: false 
 # Extensions

docs/8.0/rev_date.py

@@ -0,0 +1,34 @@
+# case 4757: the revision stamp and copyright year in the footer are set when a manual is built, never by hand.
+# Used by both manuals (hooks: in mkdocs.yml). In the copyright line REV-AUTO becomes REV-<date> and YEAR-AUTO
+# becomes that date's year. The date is the last commit that changed this manual (its folder, mkdocs.yml included),
+# or today if it has uncommitted changes or git is not available (e.g. a build outside the repo).
+# Both manuals build with strict: true, so a warning here fails the build: only a missing placeholder warns.
+import datetime
+import logging
+import os
+import subprocess
+
+log = logging.getLogger("mkdocs.hooks.rev_date")
+
+
+def _git(folder, *args):
+    return subprocess.run(["git", *args, "--", "."], cwd=folder, capture_output=True, text=True, check=True).stdout.strip()
+
+
+def on_config(config):
+    folder = os.path.dirname(os.path.abspath(config.config_file_path))
+    today = datetime.date.today().isoformat()
+    try:
+        rev = today if _git(folder, "status", "--porcelain") else _git(folder, "log", "-1", "--format=%cs")
+    except (OSError, subprocess.CalledProcessError):
+        log.info("git not available: revision date set to today")
+        rev = today
+    rev = rev or today
+
+    copyright = config.copyright or ""
+    for placeholder in ("REV-AUTO", "YEAR-AUTO"):
+        if placeholder not in copyright:
+            log.warning(f"{placeholder} not found in the copyright line of {config.config_file_path}")
+    config.copyright = copyright.replace("REV-AUTO", "REV-" + rev).replace("YEAR-AUTO", rev[:4])
+    log.info(f"revision stamp: {config.copyright}")
+    return config