Feature #561

- Added ability to temporarily suspend GC (rc.gc:0) for a given command, which
  helps scriptwriters implement shadow files externally (thanks to Sander
  Marechal).

AUTHORS

@@ -66,4 +66,5 @@ suggestions:
   Peter De Poorter
   Itay Perl
   Max Muller
+  Sander Marechal
 

ChangeLog

@@ -11,6 +11,9 @@
    'journal.info' configuration setting.
  + Added 'description+' to all reports with duplicate sort keys, to stabilize
    the sequence.
+ + Added ability to temporarily suspend GC (rc.gc:0) for a given command, which
+   helps scriptwriters implement shadow files externally (thanks to Sander
+   Marechal).
  + Added feature #158, regular expression support for filters and substitutions.
  + Added feature #247, providing infinite width reports when redirecting output
    to a file, by setting defaultwidth to 0.

NEWS

@@ -32,6 +32,8 @@ New configuration options in taskwarrior 1.9.4
     to 'over').  Default is off, as this is an advanced feature.
   - journal.info controls whether a change log for each task is displayed by
     the 'info' command.
+  - gc=off can be used, temporarily, to defer GC until later commands, which
+    eliminates problems with task ID numbers for script writers.
 
 Newly deprecated features in taskwarrior 1.9.4
 

src/Config.cpp

@@ -60,6 +60,7 @@ std::string Config::defaults =
   "# Files\n"
   "data.location=~/.task\n"
   "locking=on                                     # Use file-level locking\n"
+  "gc=on                                          # Garbage-collect data files - DO NOT CHANGE unless you are sure\n"
   "\n"
   "# Terminal\n"
   "curses=on                                      # Use ncurses library to determine terminal width\n"

src/TDB.cpp

@@ -596,6 +596,10 @@ int TDB::gc ()
 {
   Timer t ("TDB::gc");
 
+  // Allowed as a temporary override.
+  if (!context.config.getBoolean ("gc"))
+    return 0;
+
   int count_pending_changes = 0;
   int count_completed_changes = 0;
   Date now;