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  37         id 1XdYzF-0000UK-Be; Mon, 13 Oct 2014 02:20:05 -0400\r
  38 From: Austin Clements <aclements@csail.mit.edu>\r
  39 To: notmuch@notmuchmail.org\r
  40 Subject: [WIP PATCH 4/4] lib: Add "lastmod:" queries for filtering by last\r
  41         modification\r
  42 Date: Mon, 13 Oct 2014 02:20:03 -0400\r
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  73 \r
  74 From: Austin Clements <amdragon@mit.edu>\r
  75 \r
  76 XXX Includes reference to notmuch search --db-revision, which doesn't\r
  77 exist.\r
  78 ---\r
  79  doc/man7/notmuch-search-terms.rst | 8 ++++++++\r
  80  lib/database-private.h            | 1 +\r
  81  lib/database.cc                   | 4 ++++\r
  82  3 files changed, 13 insertions(+)\r
  83 \r
  84 diff --git a/doc/man7/notmuch-search-terms.rst b/doc/man7/notmuch-search-terms.rst\r
  85 index 1acdaa0..df76e39 100644\r
  86 --- a/doc/man7/notmuch-search-terms.rst\r
  87 +++ b/doc/man7/notmuch-search-terms.rst\r
  88 @@ -52,6 +52,8 @@ indicate user-supplied values):\r
  89  \r
  90  -  date:<since>..<until>\r
  91  \r
  92 +-  lastmod:<since>..<until>\r
  93 +\r
  94  The **from:** prefix is used to match the name or address of the sender\r
  95  of an email message.\r
  96  \r
  97 @@ -118,6 +120,12 @@ The time range can also be specified using timestamps with a syntax of:\r
  98  Each timestamp is a number representing the number of seconds since\r
  99  1970-01-01 00:00:00 UTC.\r
 100  \r
 101 +The **lastmod:** prefix can be used to restrict the result by the\r
 102 +database revision number of when messages were last modified (tags\r
 103 +were added/removed or filenames changed).  This is usually used in\r
 104 +conjunction with the **--db-revision** argument to **notmuch search**\r
 105 +to find messages that have changed since an earlier query.\r
 106 +\r
 107  In addition to individual terms, multiple terms can be combined with\r
 108  Boolean operators ( **and**, **or**, **not** , etc.). Each term in the\r
 109  query will be implicitly connected by a logical AND if no explicit\r
 110 diff --git a/lib/database-private.h b/lib/database-private.h\r
 111 index 0977229..cbca1de 100644\r
 112 --- a/lib/database-private.h\r
 113 +++ b/lib/database-private.h\r
 114 @@ -163,6 +163,7 @@ struct _notmuch_database {\r
 115      Xapian::TermGenerator *term_gen;\r
 116      Xapian::ValueRangeProcessor *value_range_processor;\r
 117      Xapian::ValueRangeProcessor *date_range_processor;\r
 118 +    Xapian::ValueRangeProcessor *last_mod_range_processor;\r
 119  };\r
 120  \r
 121  /* Prior to database version 3, features were implied by the database\r
 122 diff --git a/lib/database.cc b/lib/database.cc\r
 123 index 9bec170..f9aa45d 100644\r
 124 --- a/lib/database.cc\r
 125 +++ b/lib/database.cc\r
 126 @@ -913,6 +913,7 @@ notmuch_database_open (const char *path,\r
 127         notmuch->term_gen->set_stemmer (Xapian::Stem ("english"));\r
 128         notmuch->value_range_processor = new Xapian::NumberValueRangeProcessor (NOTMUCH_VALUE_TIMESTAMP);\r
 129         notmuch->date_range_processor = new ParseTimeValueRangeProcessor (NOTMUCH_VALUE_TIMESTAMP);\r
 130 +       notmuch->last_mod_range_processor = new Xapian::NumberValueRangeProcessor (NOTMUCH_VALUE_LAST_MOD, "lastmod:");\r
 131  \r
 132         notmuch->query_parser->set_default_op (Xapian::Query::OP_AND);\r
 133         notmuch->query_parser->set_database (*notmuch->xapian_db);\r
 134 @@ -920,6 +921,7 @@ notmuch_database_open (const char *path,\r
 135         notmuch->query_parser->set_stemming_strategy (Xapian::QueryParser::STEM_SOME);\r
 136         notmuch->query_parser->add_valuerangeprocessor (notmuch->value_range_processor);\r
 137         notmuch->query_parser->add_valuerangeprocessor (notmuch->date_range_processor);\r
 138 +       notmuch->query_parser->add_valuerangeprocessor (notmuch->last_mod_range_processor);\r
 139  \r
 140         for (i = 0; i < ARRAY_SIZE (BOOLEAN_PREFIX_EXTERNAL); i++) {\r
 141             prefix_t *prefix = &BOOLEAN_PREFIX_EXTERNAL[i];\r
 142 @@ -991,6 +993,8 @@ notmuch_database_close (notmuch_database_t *notmuch)\r
 143      notmuch->value_range_processor = NULL;\r
 144      delete notmuch->date_range_processor;\r
 145      notmuch->date_range_processor = NULL;\r
 146 +    delete notmuch->last_mod_range_processor;\r
 147 +    notmuch->last_mod_range_processor = NULL;\r
 148  \r
 149      return status;\r
 150  }\r
 151 -- \r
 152 2.1.0\r
 153 \r