mkdist: name zips by the BT411_<version> convention (btversion.h)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tools/mkdist.py

@@ -17,6 +17,7 @@ bindings.txt keymap) with the pod build as fallback.
 Usage:  python tools/mkdist.py  [outdir]     (default outdir = dist/)
 """
 import os
+import re
 import subprocess
 import sys
 import time
@@ -29,10 +30,19 @@ def main():
     outdir = sys.argv[1] if len(sys.argv) > 1 else os.path.join(REPO, "dist")
     os.makedirs(outdir, exist_ok=True)
 
-    githash = subprocess.check_output(
-        ["git", "rev-parse", "--short", "HEAD"]).decode().strip()
-    stamp = time.strftime("%Y-%m-%d")
-    name = "BT411-%s-%s" % (stamp, githash)
+    # Name by the repo version convention (BT411_4.11.NNN, tools/btversion.cmake:
+    # build = commit count).  Falls back to date+hash if the header is absent.
+    name = None
+    for h in ("build/btversion.h", "build-glass/btversion.h"):
+        if os.path.exists(h):
+            m = re.search(r'BT_VERSION_STRING\s+"([^"]+)"', open(h).read())
+            if m:
+                name = "BT411_" + m.group(1)
+                break
+    if name is None:
+        githash = subprocess.check_output(
+            ["git", "rev-parse", "--short", "HEAD"]).decode().strip()
+        name = "BT411-%s-%s" % (time.strftime("%Y-%m-%d"), githash)
     zpath = os.path.join(outdir, name + ".zip")
 
     tracked = subprocess.check_output(