removing technical debt, replace convoluted code

core/utils.py

@@ -74,6 +74,8 @@ def chaosmonkey(n):
 def GetListDir(sdir):
     '''handles url or file, so we can refer to a set of scans (not drawings) on another server
     returns a list of f (file), ff (file full path), is_dir (bool)
+    
+    REPLACE all use of this with Path.rglob() !
     '''
     res = [ ]
     if type(sdir) is str and sdir[:7] == "http://":

parsers/scans.py

@@ -73,9 +73,11 @@ def load_all_scans():
     It does NOT read or validate anything in the JSON data attached to each wallet. Those checks
     are done at runtime, when a wallet is accessed, not at import time.
     
-    NOTE that parsers/survex.py does NOT create a wallet if it finds an unrecognised *REF wallet.
-    Instead it reports an error in DataIssues. But it does make a link in the db between the
-    existing wallet (probably no JSON, just a folder containing scans) and the survex file.
+    Replace GetListDir with a more modern Path.iter idiom
+    path = Path("scans")
+    for p in path.rglob("*"):
+        print(p.name)
+    
     '''
     print(' - Loading Survey Scans')
 
@@ -84,23 +86,55 @@ def load_all_scans():
     print(' - deleting all Wallet and SingleScan objects')
     DataIssue.objects.filter(parser='scans').delete()
     
-    # first do the smkhs (large kh survey scans) directory
-    # this seems to be never used ?!
-    #We should load all the scans, even for nonstandard names. 
-    manywallets_smkhs = Wallet(fpath=os.path.join(settings.SCANS_ROOT, "../surveys/smkhs"), walletname="smkhs") 
-    print("smkhs", end=' ')
-    if os.path.isdir(manywallets_smkhs.fpath):
-        manywallets_smkhs.save()
-        LoadListScansFile(manywallets_smkhs)
-    else:
-        print("smkhs NOT LOADED", end=' ')
+    valids = [".top",".txt",".tif",".png",".jpg",".jpeg",".pdf",".svg",".gif",".xvi",
+        ".json",".autosave",".sxd",".svx",".th",".th2",".tdr",".sql",".zip",".dxf",".3d",
+        ".ods",".csv",".xcf",".xml"]
+    validnames = ["thconfig","manifest"]
 
     # iterate into the surveyscans directory
+    # Not all folders with files in them are wallets.
+    # they are if they   are /2010/2010#33 
+    #     or /1996-1999NotKHbook/
+    #     but not if they are /2010/1010#33/therion  or /1998/
     print(' - ', end=' ')
-    for walletname, fpath, fisdir in GetListDir(settings.SCANS_ROOT):
+    scans_path = Path(settings.SCANS_ROOT) 
+    seen = []
+    for p in scans_path.rglob('*'):
+        if p.is_file():
+            if p.suffix.lower() not in valids and p.name.lower() not in validnames:
+                # print(f"'{p}'", end='\n')
+                pass
+            elif p.parent == scans_path: # skip files directly in /surveyscans/
+                pass
+            else:
+                if p.parent.parent.parent.parent == scans_path:
+                    # print(f"too deep {p}", end='\n')
+                    fpath = p.parent.parent
+                    walletname = p.parent.parent.name # wallet is one level higher
+                else: 
+                    fpath = p.parent
+                    walletname = p.parent.name
+                    
+                # UNFINISHED
+                tag = p.parent
+                if len(walletname)>4:
+                    if walletname[4] == "#":
+                        tag = p.parent.parent
+                    
+                if tag not in seen:
+                    print(f"{tag.name}", end=' ')
+                    seen.append(tag)
+                     #wallet = Wallet(fpath=fpath, walletname=walletname)
+                    
+    
+    print('\n UNFINISHED  \n\n--- ')
+    for topfolder, fpath, fisdir in GetListDir(settings.SCANS_ROOT):
         if not fisdir:
             continue
 
+        # do the year folders
+        if re.match(r"\d\d\d\d$", topfolder):
+            print(f"{topfolder}", end=' ')
             for walletname, fpath, fisdir in GetListDir(fpath):
                 if fisdir:
                     wallet = Wallet(fpath=fpath, walletname=walletname)
@@ -110,22 +144,9 @@ def load_all_scans():
                     CheckEmptyPeople(wallet)
                     wallet.save()
                     LoadListScansFile(wallet)
-      
-        # # do the year folders
-        # if re.match(r"\d\d\d\d$", walletname):
-            # print(f"{walletname}", end=' ')
-            # for walletname, fpath, fisdir in GetListDir(fpath):
-                # if fisdir:
-                    # wallet = Wallet(fpath=fpath, walletname=walletname)
-                    # # this is where we should record the year explicitly
-                    # # line 347 of view/uploads.py and needs refactoring for loading contentsjson
-                    # CheckEmptyDate(wallet)
-                    # CheckEmptyPeople(wallet)
-                    # wallet.save()
-                    # LoadListScansFile(wallet)
-        # else:
-            # # but We *should* load all the scans, even for nonstandard names. 
-            # print(f'\n - IGNORE {walletname} - {fpath}')
+        else:
+            # but We *should* load all the scans, even for nonstandard names. 
+            print(f'\n - IGNORE {walletname} - {fpath}')
  
     # but we also need to check if JSON exists, even if there are no uploaded scan files
     contents_path = Path(settings.DRAWINGS_DATA, "walletjson")