versions

modules/http_host/http_host_lib/versions.py

@@ -0,0 +1,52 @@
+import sys
+from pathlib import Path
+
+import requests
+
+from http_host_lib.config import config
+from http_host_lib.utils import assert_linux, assert_sudo
+
+
+def sync_version_files() -> bool:
+    """
+    Syncs the version files from remote to local.
+    Remove versions are specified by https://assets.openfreemap.com/versions/deployed_{area}.txt
+    """
+
+    print('Syncing local version files')
+
+    assert_linux()
+    assert_sudo()
+
+    if not config.mnt_dir.exists():
+        sys.exit('  mount needs to be run first')
+
+    need_nginx_sync = False
+
+    for area in config.areas:
+        r = requests.get(f'https://assets.openfreemap.com/deployed_versions/{area}.txt', timeout=30)
+        r.raise_for_status()
+        remote_version = r.text.strip()
+        assert remote_version
+        print(f'  remote version for {area}: {remote_version}')
+
+        local_version_file = config.deployed_versions_dir / f'{area}.txt'
+
+        try:
+            local_version_old = local_version_file.read_text()
+        except Exception:
+            local_version_old = None
+
+        mnt_file = Path(f'/mnt/ofm/{area}-{remote_version}/metadata.json')
+        if not mnt_file.exists():
+            print('    local version does not exist')
+            if local_version_old is not None:
+                local_version_file.unlink()
+                need_nginx_sync = True
+            continue
+
+        if remote_version != local_version_old:
+            local_version_file.write_text(remote_version)
+            need_nginx_sync = True
+
+    return need_nginx_sync