fix(shada): update deleted marks (#24936)

Fix #4295
Close #16067

Co-authored-by: chentau <tchen1998@gmail.com>

src/nvim/mark.c

@@ -51,9 +51,6 @@
 // There are marks 'A - 'Z (set by user) and '0 to '9 (set when writing
 // shada).
 
-/// Global marks (marks with file number or name)
-static xfmark_T namedfm[NGLOBALMARKS];
-
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "mark.c.generated.h"
 #endif
@@ -935,6 +932,7 @@ void ex_delmarks(exarg_T *eap)
     emsg(_(e_argreq));
   } else {
     // clear specified marks only
+    const Timestamp timestamp = os_time();
     for (p = eap->arg; *p != NUL; p++) {
       lower = ASCII_ISLOWER(*p);
       digit = ascii_isdigit(*p);
@@ -959,6 +957,7 @@ void ex_delmarks(exarg_T *eap)
         for (int i = from; i <= to; i++) {
           if (lower) {
             curbuf->b_namedm[i - 'a'].mark.lnum = 0;
+            curbuf->b_namedm[i - 'a'].timestamp = timestamp;
           } else {
             if (digit) {
               n = i - '0' + NMARKS;
@@ -967,17 +966,24 @@ void ex_delmarks(exarg_T *eap)
             }
             namedfm[n].fmark.mark.lnum = 0;
             namedfm[n].fmark.fnum = 0;
+            namedfm[n].fmark.timestamp = timestamp;
             XFREE_CLEAR(namedfm[n].fname);
           }
         }
       } else {
         switch (*p) {
         case '"':
-          CLEAR_FMARK(&curbuf->b_last_cursor); break;
+          curbuf->b_last_cursor.timestamp = timestamp;
+          CLEAR_FMARK(&curbuf->b_last_cursor);
+          break;
         case '^':
-          CLEAR_FMARK(&curbuf->b_last_insert); break;
+          curbuf->b_last_insert.timestamp = timestamp;
+          CLEAR_FMARK(&curbuf->b_last_insert);
+          break;
         case '.':
-          CLEAR_FMARK(&curbuf->b_last_change); break;
+          curbuf->b_last_change.timestamp = timestamp;
+          CLEAR_FMARK(&curbuf->b_last_change);
+          break;
         case '[':
           curbuf->b_op_start.lnum    = 0; break;
         case ']':

src/nvim/mark_defs.h

@@ -86,4 +86,7 @@ typedef struct xfilemark {
 
 #define INIT_XFMARK { INIT_FMARK, NULL }
 
+/// Global marks (marks with file number or name)
+EXTERN xfmark_T namedfm[NGLOBALMARKS] INIT(= { 0 });
+
 #endif  // NVIM_MARK_DEFS_H

src/nvim/shada.c

@@ -2160,6 +2160,12 @@ static inline ShaDaWriteResult shada_read_when_writing(ShaDaReadDef *const sd_re
           shada_free_shada_entry(&entry);
           break;
         }
+        if (wms->global_marks[idx].data.type == kSDItemMissing) {
+          if (namedfm[idx].fmark.timestamp >= entry.timestamp) {
+            shada_free_shada_entry(&entry);
+            break;
+          }
+        }
         COMPARE_WITH_ENTRY(&wms->global_marks[idx], entry);
       }
       break;
@@ -2189,6 +2195,7 @@ static inline ShaDaWriteResult shada_read_when_writing(ShaDaReadDef *const sd_re
             entry;
         } else {
           PossiblyFreedShadaEntry *const wms_entry = &filemarks->marks[idx];
+          bool set_wms = true;
           if (wms_entry->data.type != kSDItemMissing) {
             if (wms_entry->data.timestamp >= entry.timestamp) {
               shada_free_shada_entry(&entry);
@@ -2200,8 +2207,23 @@ static inline ShaDaWriteResult shada_read_when_writing(ShaDaReadDef *const sd_re
               }
               shada_free_shada_entry(&wms_entry->data);
             }
+          } else {
+            FOR_ALL_BUFFERS(buf) {
+              if (buf->b_ffname != NULL
+                  && path_fnamecmp(entry.data.filemark.fname, buf->b_ffname) == 0) {
+                fmark_T fm;
+                mark_get(buf, curwin, &fm, kMarkBufLocal, (int)entry.data.filemark.name);
+                if (fm.timestamp >= entry.timestamp) {
+                  set_wms = false;
+                  shada_free_shada_entry(&entry);
+                  break;
+                }
+              }
+            }
+          }
+          if (set_wms) {
+            *wms_entry = pfs_entry;
           }
-          *wms_entry = pfs_entry;
         }
       } else {
 #define AFTERFREE_DUMMY(entry)

test/functional/shada/marks_spec.lua

@@ -3,6 +3,7 @@ local helpers = require('test.functional.helpers')(after_each)
 local meths, curwinmeths, curbufmeths, nvim_command, funcs, eq =
   helpers.meths, helpers.curwinmeths, helpers.curbufmeths, helpers.command,
   helpers.funcs, helpers.eq
+local feed = helpers.feed
 local exc_exec, exec_capture = helpers.exc_exec, helpers.exec_capture
 local expect_exit = helpers.expect_exit
 
@@ -248,4 +249,24 @@ describe('ShaDa support code', function()
     eq('', funcs.system(argv))
     eq(0, exc_exec('rshada'))
   end)
+
+  it('updates deleted marks', function()
+    nvim_command('edit ' .. testfilename)
+
+    nvim_command('mark A')
+    nvim_command('mark a')
+    -- create a change to set the '.' mark,
+    -- since it can't be set via :mark
+    feed('ggifoobar<esc>')
+    nvim_command('wshada')
+    nvim_command('normal! `A`a`.')
+
+    nvim_command('delmarks A a .')
+    nvim_command('wshada')
+
+    reset()
+    eq('Vim(normal):E20: Mark not set', exc_exec('normal! `A'))
+    eq('Vim(normal):E20: Mark not set', exc_exec('normal! `a'))
+    eq('Vim(normal):E20: Mark not set', exc_exec('normal! `.'))
+  end)
 end)