From b5ce4a2c59c903c3365706ff0e41328862c5cc0f Mon Sep 17 00:00:00 2001
From: Don Allingham <don@gramps-project.org>
Date: Mon, 18 Jun 2007 19:33:52 +0000
Subject: [PATCH] 2007-06-18  Don Allingham  <don@gramps-project.org> 	*
 src/GrampsDb/_GrampsDBDir.py: support lock file 	* src/DbManager.py:
 display locked file message

svn: r8584
---
 ChangeLog                    |  4 ++++
 src/DbManager.py             | 16 ++++++++++++++++
 src/GrampsDb/_GrampsDBDir.py | 23 ++++++++++++++++++++++-
 3 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index fc38c7c50..1e1d272b8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2007-06-18  Don Allingham  <don@gramps-project.org>
+	* src/GrampsDb/_GrampsDBDir.py: support lock file
+	* src/DbManager.py: display locked file message
+
 2007-06-18  Alex Roitman  <shura@gramps-project.org>
 	* src/DateEdit.py (DateEditorDialog.switch_calendar): Only convert
 	non-empty dates to new calendar.
diff --git a/src/DbManager.py b/src/DbManager.py
index cfbb9d391..c592b1a2b 100644
--- a/src/DbManager.py
+++ b/src/DbManager.py
@@ -44,6 +44,11 @@ from gettext import gettext as _
 import logging
 LOG = logging.getLogger(".DbManager")
 
+if os.sys.platform == "win32":
+    _rcs_found = os.system("rcs -V >nul 2>nul") == 0
+else:
+    _rcs_found = os.system("rcs -V >/dev/null 2>/dev/null") == 0
+
 #-------------------------------------------------------------------------
 #
 # GTK/Gnome modules
@@ -249,6 +254,15 @@ class DbManager:
                 (enable, stock_id) = icon_values(dirpath, self.active, 
                                                  self.dbstate.db.is_open())
 
+                if (stock_id == 'gramps-lock'):
+                    try:
+                        fname = os.path.join(dirpath, "lock")
+                        f = open(fname)
+                        last = f.read().strip()
+                        f.close()
+                    except:
+                        last = _("Unknown")
+
                 self.current_names.append(
                     (name, os.path.join(dbdir, dpath), path_name,
                      last, tval, enable, stock_id))
@@ -466,6 +480,8 @@ def icon_values(dirpath, active, open):
         return (True, gtk.STOCK_DIALOG_ERROR)
     elif dirpath == active and open:
         return (True, gtk.STOCK_OPEN)
+    elif os.path.isfile(os.path.join(dirpath,"lock")):
+        return (True, 'gramps-lock')
     else:
         return (False, "")
 
diff --git a/src/GrampsDb/_GrampsDBDir.py b/src/GrampsDb/_GrampsDBDir.py
index 0e1f8631e..eec48a342 100644
--- a/src/GrampsDb/_GrampsDBDir.py
+++ b/src/GrampsDb/_GrampsDBDir.py
@@ -208,6 +208,10 @@ class GrampsDBDir(GrampsDbBase,UpdateCallback):
         mypath = os.path.join(self.get_save_path(),"need_recover")
         ofile = open(mypath, "w")
         ofile.close()
+        try:
+            clear_lock_file(self.get_save_path())
+        except:
+            pass
 
     def __get_cursor(self, table):
         try:
@@ -435,9 +439,9 @@ class GrampsDBDir(GrampsDbBase,UpdateCallback):
         try:
             if self.__check_readonly(name):
                 mode = "r"
+            write_lock_file(name)
             return self.__load(name, callback, mode)
         except DBERRS, msg:
-            print name
             self.__log_error()
             raise Errors.DbError(msg)
 
@@ -1211,9 +1215,12 @@ class GrampsDBDir(GrampsDbBase,UpdateCallback):
     def close(self):
         try:
             self.__close()
+            clear_lock_file(self.get_save_path())
         except DBERRS, msg:
             self.__log_error()
             raise Errors.DbError(msg)
+        except IOError:
+            pass
 
     def __close(self):
         if not self.db_is_open:
@@ -1721,6 +1728,20 @@ class BdbTransaction(Transaction):
 def _mkname(path, name):
     return os.path.join(path, name + ".db")
 
+def clear_lock_file(name):
+    os.unlink(os.path.join(name, "lock"))
+
+def write_lock_file(name):
+    f = open(os.path.join(name, "lock"), "w")
+    if os.name == 'nt':
+        text = os.environ['USERNAME']
+    else:
+        import pwd
+        host = os.uname()[1]
+        user = os.getlogin()
+        text = "%s@%s" % (user, host)
+    f.write(_("Locked by %s") % text)
+    f.close()
 
 if __name__ == "__main__":