FDS/OS 1.0

2026-09-21 22:29:23 +08:00
commit 99bc3d15c5
430 changed files with 34876 additions and 0 deletions
@@ -0,0 +1,34 @@
+"""Pinned official EEPROM configuration tool and Pi 5 preview image."""
+import fcntl
+import hashlib
+import json
+import os
+from pathlib import Path
+import subprocess
+import tempfile
+
+PROJECT=Path(__file__).resolve().parents[1]
+
+def sha256(path):
+    with Path(path).open('rb') as stream:return hashlib.file_digest(stream,'sha256').hexdigest()
+
+def prepare():
+    pin=json.loads((PROJECT/'config/eeprom/inputs.json').read_text())
+    cache=PROJECT/'.host/eeprom'/pin['commit'];cache.mkdir(parents=True,exist_ok=True)
+    with (cache/'.lock').open('a') as lock:
+        fcntl.flock(lock,fcntl.LOCK_EX)
+        for item in pin['files']:
+            target=cache/item['name']
+            if not target.exists():
+                if os.environ.get('FDS_OFFLINE')=='1':raise ValueError(f'Missing offline EEPROM input: {target}')
+                url=f'https://raw.githubusercontent.com/raspberrypi/rpi-eeprom/{pin["commit"]}/{item["path"]}'
+                fd,name=tempfile.mkstemp(prefix='.download-',dir=cache);os.close(fd)
+                temporary=Path(name)
+                try:
+                    subprocess.run(['curl','--fail','--location','--silent','--show-error',url,'--output',str(temporary)],check=True)
+                    if sha256(temporary)!=item['sha256']:raise ValueError(f'EEPROM input checksum mismatch: {item["name"]}')
+                    temporary.replace(target)
+                finally:temporary.unlink(missing_ok=True)
+            if not target.is_file() or sha256(target)!=item['sha256']:
+                raise ValueError(f'Cached EEPROM input changed: {target}')
+    return cache,pin