Tester: files still downloading are skipped, like SaraSortd 7.4

Co-Authored-By: Claude Opus 5.5 <[email protected]>

Sortd.py

@@ -59,6 +59,17 @@ def GetConf(Parameter: str, Data: dict) -> Any:
     return None
 
 
+PartialDownloadSuffixes = (".part", ".crdownload", ".download")
+
+
+def IsPartialDownload(FilePath: str) -> bool:
+    """SaraSortd 7.4's IsPartialDownload: still downloading (Firefox, Chromium,
+    Safari), or a file next to its own unfinished download."""
+    if os.path.basename(FilePath).lower().endswith(PartialDownloadSuffixes):
+        return True
+    return any(os.path.exists(FilePath + Suffix) for Suffix in PartialDownloadSuffixes)
+
+
 def IsCatchAll(Pattern: str) -> bool:
     """SaraSortd 7.3's IsCatchAll: a pattern of only "*" takes any file, so it's a fallback."""
     return Pattern != "" and set(Pattern) == {"*"}
@@ -740,6 +751,9 @@ class Setup:
         """Follows Main() and DecideNewPath() for one file, without touching
         anything (NextNum/NextChar aren't incremented)."""
         Steps: list[str] = []
+        if IsPartialDownload(f"{InputPath}/{FileName}"):
+            return SimulationResult(["It's still downloading (.part, .crdownload or .download), so SaraSortd leaves it "
+                                     "alone until the download finishes."], None, "Skipped")
         if FileName.startswith(".") and self.Data.get("DotFiles", 0) == 0:
             return SimulationResult(["Dot files are skipped (DotFiles = 0)."], None, "Skipped")
         InConf = self.LoadDirConf(InputPath, "In")
@@ -887,9 +901,12 @@ class Setup:
                         else:
                             Found.append(("Error", f"{OutputPath}: [[Files]] #{Position + 1} has no {Missing}; SaraSortd will crash on it."))
         if Daemon and not VersionAtLeast(Daemon, (7, 3)):
-            Found.append(("Warning", f"SaraSort shows how SaraSortd 7.3 sorts, and SaraSortd {Daemon} differs: a catch-all (\"*\") "
-                                     "output listed first takes every file, nested %Name%s don't resolve, and ! & @ ~ ^ in "
-                                     "paths get swapped. Update SaraSortd to 7.3."))
+            Found.append(("Warning", f"SaraSort shows how SaraSortd 7.4 sorts, and SaraSortd {Daemon} differs: a catch-all (\"*\") "
+                                     "output listed first takes every file, nested %Name%s don't resolve, ! & @ ~ ^ in "
+                                     "paths get swapped, and files still downloading get sorted. Update SaraSortd to 7.4."))
+        elif Daemon and not VersionAtLeast(Daemon, (7, 4)):
+            Found.append(("Warning", f"SaraSortd {Daemon} sorts files that are still downloading (.part, .crdownload, "
+                                     ".download). Update SaraSortd to 7.4."))
         Central = self.CentralFolder()
         if (Central or self.Data.get("DirConfs")) and Daemon and not VersionAtLeast(Daemon, (7, 2)):
             Found.append(("Error", f"Directory configs are kept outside their directories (DirConfDir / [DirConfs]), "