Implement locally stored docs. Uses web when local not available.

docs/install-docs.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+
+import os
+import shutil
+import sys
+
+
+def main():
+    if len(sys.argv) != 4:
+        raise SystemExit("usage: install-docs.py STAMP_FILE SOURCE_DIR DATADIR")
+
+    _, source_dir, datadir = sys.argv[1:]
+    source_dir = os.path.abspath(source_dir)
+
+    if not os.path.isfile(sys.argv[1]):
+        raise SystemExit("documentation build did not produce its stamp file")
+    if not os.path.isfile(os.path.join(source_dir, "index.html")):
+        raise SystemExit("documentation build did not produce index.html")
+
+    if os.path.isabs(datadir):
+        destdir = os.environ.get("DESTDIR", "")
+        if destdir:
+            data_root = os.path.join(destdir, datadir.lstrip("/\\"))
+        else:
+            data_root = datadir
+    else:
+        data_root = os.path.join(os.environ["MESON_INSTALL_DESTDIR_PREFIX"], datadir)
+
+    destination = os.path.join(data_root, "doc", "zoitechat", "html")
+    shutil.rmtree(destination, ignore_errors=True)
+    os.makedirs(os.path.dirname(destination), exist_ok=True)
+    shutil.copytree(source_dir, destination)
+
+
+if __name__ == "__main__":
+    main()