Implement the modification bit of the .swp file, put it in the correct actual

location (pos 1007).



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4551 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

 2012-12-31 Chris Allegretta <chrisa@asty.org>
         * src/*: Introduce (basic) vim-style file locks.  Does not allow vim to recover
-          our files, and doesn't yet support setting the file as modified; just lets a
-          vim user know we're editing a file.  Commands line "-G" or "--locking", nanorc 
-          option "locking".  New functions src/files.c:do_lockfile(), write_lockfile(), 
-          and delete_lockfile().
+          our changes, and just lets a vim user know we're editing a file.  Commands line "-G" 
+          or "--locking", nanorc option "locking".  New functions 
+          src/files.c:do_lockfile(), write_lockfile(), and delete_lockfile().
 
 2012-02-05 Chris Allegretta <chrisa@asty.org>
 	* src/*: Fix overlapping strings highlighting each other.  new variables in edit_draw 

src/files.c

@@ -182,8 +182,7 @@ int write_lockfile(const char *lockfilename, const char *origfilename, bool modi
        bytes 28-44   - username of who created the lock
        bytes 68-100  - hostname of where the lock was created
        bytes 108-876 - filename the lock is for
-       byte 1018     - 0x55 if file is modified
-                       (TODO: set if 'modified' == TRUE)
+       byte 1007     - 0x55 if file is modified
 
        Looks like VIM also stores undo state in this file so we're
        gonna have to figure out how to slap a 'OMG don't use recover
@@ -200,6 +199,8 @@ int write_lockfile(const char *lockfilename, const char *origfilename, bool modi
     strncpy(&lockdata[28], mypwuid->pw_name, 16);
     strncpy(&lockdata[68], myhostname, 31);
     strncpy(&lockdata[108], origfilename, 768);
+    if (modified == TRUE)
+        lockdata[1007] = 0x55;
 
     wroteamt = fwrite(lockdata, sizeof(char), lockdatalen, filestream);
     if (wroteamt < lockdatalen) {

src/winio.c

@@ -2259,11 +2259,16 @@ void set_modified(void)
 	openfile->modified = TRUE;
 	titlebar(NULL);
 #ifndef NANO_TINY
-	if (ISSET(LOCKING) && openfile->lock_filename == NULL)
-            /* Translators: Try to keep this at most 80 characters. */
-            statusbar(_("Warning: Modifying a file which is not locked, check directory permission?"));
+	if (ISSET(LOCKING)) {
+	    if (openfile->lock_filename == NULL) {
+                /* Translators: Try to keep this at most 80 characters. */
+                statusbar(_("Warning: Modifying a file which is not locked, check directory permission?"));
+	    } else {
+		write_lockfile(openfile->lock_filename,
+                               get_full_path(openfile->filename), TRUE);
+            }
+	}
 #endif
-
     }
 }