mergestate: use dirstate.update_file API in recordupdates()

mergestate: use dirstate.update_file API in recordupdates()

Let's use the new single function to replace multiple different functions. This
is part of dirstate API refactor to make it more clearer and generic so that it
can be replicated in Rust.

Differential Revision: https://phab.mercurial-scm.org/D11077

--- a/mercurial/mergestate.py	Fri Jul 09 15:27:38 2021 +0530
+++ b/mercurial/mergestate.py	Wed Jul 07 23:04:19 2021 +0530
@@ -743,34 +743,34 @@
     # remove (must come first)
     for f, args, msg in actions.get(ACTION_REMOVE, []):
         if branchmerge:
-            repo.dirstate.remove(f)
+            repo.dirstate.update_file(f, p1_tracked=True, wc_tracked=False)
         else:
-            repo.dirstate.drop(f)
+            repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=False)
 
     # forget (must come first)
     for f, args, msg in actions.get(ACTION_FORGET, []):
-        repo.dirstate.drop(f)
+        repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=False)
 
     # resolve path conflicts
     for f, args, msg in actions.get(ACTION_PATH_CONFLICT_RESOLVE, []):
         (f0, origf0) = args
-        repo.dirstate.add(f)
+        repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
         repo.dirstate.copy(origf0, f)
         if f0 == origf0:
-            repo.dirstate.remove(f0)
+            repo.dirstate.update_file(f0, p1_tracked=True, wc_tracked=False)
         else:
-            repo.dirstate.drop(f0)
+            repo.dirstate.update_file(f0, p1_tracked=False, wc_tracked=False)
 
     # re-add
     for f, args, msg in actions.get(ACTION_ADD, []):
-        repo.dirstate.add(f)
+        repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
 
     # re-add/mark as modified
     for f, args, msg in actions.get(ACTION_ADD_MODIFIED, []):
         if branchmerge:
             repo.dirstate.normallookup(f)
         else:
-            repo.dirstate.add(f)
+            repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
 
     # exec change
     for f, args, msg in actions.get(ACTION_EXEC, []):
@@ -791,10 +791,17 @@
     # get
     for f, args, msg in actions.get(ACTION_GET, []):
         if branchmerge:
-            repo.dirstate.otherparent(f)
+            # tracked in p1 can be True also but update_file should not care
+            repo.dirstate.update_file(
+                f,
+                p1_tracked=False,
+                p2_tracked=True,
+                wc_tracked=True,
+                clean_p2=True,
+            )
         else:
             parentfiledata = getfiledata[f] if getfiledata else None
-            repo.dirstate.normal(f, parentfiledata=parentfiledata)
+            repo.dirstate.update_parent_file_data(f, parentfiledata)
 
     # merge
     for f, args, msg in actions.get(ACTION_MERGE, []):
@@ -802,10 +809,14 @@
         if branchmerge:
             # We've done a branch merge, mark this file as merged
             # so that we properly record the merger later
-            repo.dirstate.merge(f)
+            repo.dirstate.update_file(
+                f, p1_tracked=True, wc_tracked=True, merged=True
+            )
             if f1 != f2:  # copy/rename
                 if move:
-                    repo.dirstate.remove(f1)
+                    repo.dirstate.update_file(
+                        f1, p1_tracked=True, wc_tracked=False
+                    )
                 if f1 != f:
                     repo.dirstate.copy(f1, f)
                 else:
@@ -817,26 +828,30 @@
             # merge will appear as a normal local file
             # modification.
             if f2 == f:  # file not locally copied/moved
-                repo.dirstate.normallookup(f)
+                repo.dirstate.update_file(
+                    f, p1_tracked=True, wc_tracked=True, possibly_dirty=True
+                )
             if move:
-                repo.dirstate.drop(f1)
+                repo.dirstate.update_file(
+                    f1, p1_tracked=False, wc_tracked=False
+                )
 
     # directory rename, move local
     for f, args, msg in actions.get(ACTION_DIR_RENAME_MOVE_LOCAL, []):
         f0, flag = args
         if branchmerge:
-            repo.dirstate.add(f)
-            repo.dirstate.remove(f0)
+            repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
+            repo.dirstate.update_file(f0, p1_tracked=True, wc_tracked=False)
             repo.dirstate.copy(f0, f)
         else:
-            repo.dirstate.normal(f)
-            repo.dirstate.drop(f0)
+            repo.dirstate.update_file(f, p1_tracked=True, wc_tracked=True)
+            repo.dirstate.update_file(f0, p1_tracked=False, wc_tracked=False)
 
     # directory rename, get
     for f, args, msg in actions.get(ACTION_LOCAL_DIR_RENAME_GET, []):
         f0, flag = args
         if branchmerge:
-            repo.dirstate.add(f)
+            repo.dirstate.update_file(f, p1_tracked=False, wc_tracked=True)
             repo.dirstate.copy(f0, f)
         else:
-            repo.dirstate.normal(f)
+            repo.dirstate.update_file(f, p1_tracked=True, wc_tracked=True)