Three fixes (fsspec#1633)

* Three fixes

* fix the fix

fsspec/generic.py

@@ -197,6 +197,7 @@ async def _find(self, path, maxdepth=None, withdirs=False, detail=False, **kwarg
             )
         result = {}
         for k, v in out.items():
+            v = v.copy()  # don't corrupt target FS dircache
             name = fs.unstrip_protocol(k)
             v["name"] = name
             result[name] = v
@@ -210,6 +211,7 @@ async def _info(self, url, **kwargs):
             out = await fs._info(url, **kwargs)
         else:
             out = fs.info(url, **kwargs)
+        out = out.copy()  # don't edit originals
         out["name"] = fs.unstrip_protocol(out["name"])
         return out
 
@@ -224,6 +226,7 @@ async def _ls(
             out = await fs._ls(url, detail=True, **kwargs)
         else:
             out = fs.ls(url, detail=True, **kwargs)
+        out = [o.copy() for o in out]  # don't edit originals
         for o in out:
             o["name"] = fs.unstrip_protocol(o["name"])
         if detail:

fsspec/implementations/cached.py

@@ -795,7 +795,8 @@ def info(self, path, **kwargs):
         if self._intrans:
             f = [_ for _ in self.transaction.files if _.path == path]
             if f:
-                return {"name": path, "size": f[0].size or f[0].tell(), "type": "file"}
+                size = os.path.getsize(f[0].fn) if f[0].closed else f[0].tell()
+                return {"name": path, "size": size, "type": "file"}
             f = any(_.path.startswith(path + "/") for _ in self.transaction.files)
             if f:
                 return {"name": path, "size": 0, "type": "directory"}
@@ -901,7 +902,7 @@ def __exit__(self, exc_type, exc_val, exc_tb):
         self.close()
 
     def close(self):
-        self.size = self.fh.tell()
+        # self.size = self.fh.tell()
         if self.closed:
             return
         self.fh.close()

fsspec/implementations/http.py

@@ -560,6 +560,7 @@ def __init__(
         if mode != "rb":
             raise NotImplementedError("File mode not supported")
         self.asynchronous = asynchronous
+        self.loop = loop
         self.url = url
         self.session = session
         self.details = {"name": url, "size": size, "type": "file"}
@@ -572,7 +573,6 @@ def __init__(
             cache_options=cache_options,
             **kwargs,
         )
-        self.loop = loop
 
     def read(self, length=-1):
         """Read bytes from file
@@ -736,6 +736,7 @@ async def cor():
             return r
 
         self.r = sync(self.loop, cor)
+        self.loop = fs.loop
 
     def seek(self, loc, whence=0):
         if loc == 0 and whence == 1: