[WIP PATCH 4/4] lib: Add "lastmod:" queries for filtering by last modification
Austin Clements
aclements at csail.mit.edu
Sun Oct 12 23:20:03 PDT 2014
From: Austin Clements <amdragon at mit.edu>
XXX Includes reference to notmuch search --db-revision, which doesn't
exist.
---
doc/man7/notmuch-search-terms.rst | 8 ++++++++
lib/database-private.h | 1 +
lib/database.cc | 4 ++++
3 files changed, 13 insertions(+)
diff --git a/doc/man7/notmuch-search-terms.rst b/doc/man7/notmuch-search-terms.rst
index 1acdaa0..df76e39 100644
--- a/doc/man7/notmuch-search-terms.rst
+++ b/doc/man7/notmuch-search-terms.rst
@@ -52,6 +52,8 @@ indicate user-supplied values):
- date:<since>..<until>
+- lastmod:<since>..<until>
+
The **from:** prefix is used to match the name or address of the sender
of an email message.
@@ -118,6 +120,12 @@ The time range can also be specified using timestamps with a syntax of:
Each timestamp is a number representing the number of seconds since
1970-01-01 00:00:00 UTC.
+The **lastmod:** prefix can be used to restrict the result by the
+database revision number of when messages were last modified (tags
+were added/removed or filenames changed). This is usually used in
+conjunction with the **--db-revision** argument to **notmuch search**
+to find messages that have changed since an earlier query.
+
In addition to individual terms, multiple terms can be combined with
Boolean operators ( **and**, **or**, **not** , etc.). Each term in the
query will be implicitly connected by a logical AND if no explicit
diff --git a/lib/database-private.h b/lib/database-private.h
index 0977229..cbca1de 100644
--- a/lib/database-private.h
+++ b/lib/database-private.h
@@ -163,6 +163,7 @@ struct _notmuch_database {
Xapian::TermGenerator *term_gen;
Xapian::ValueRangeProcessor *value_range_processor;
Xapian::ValueRangeProcessor *date_range_processor;
+ Xapian::ValueRangeProcessor *last_mod_range_processor;
};
/* Prior to database version 3, features were implied by the database
diff --git a/lib/database.cc b/lib/database.cc
index 9bec170..f9aa45d 100644
--- a/lib/database.cc
+++ b/lib/database.cc
@@ -913,6 +913,7 @@ notmuch_database_open (const char *path,
notmuch->term_gen->set_stemmer (Xapian::Stem ("english"));
notmuch->value_range_processor = new Xapian::NumberValueRangeProcessor (NOTMUCH_VALUE_TIMESTAMP);
notmuch->date_range_processor = new ParseTimeValueRangeProcessor (NOTMUCH_VALUE_TIMESTAMP);
+ notmuch->last_mod_range_processor = new Xapian::NumberValueRangeProcessor (NOTMUCH_VALUE_LAST_MOD, "lastmod:");
notmuch->query_parser->set_default_op (Xapian::Query::OP_AND);
notmuch->query_parser->set_database (*notmuch->xapian_db);
@@ -920,6 +921,7 @@ notmuch_database_open (const char *path,
notmuch->query_parser->set_stemming_strategy (Xapian::QueryParser::STEM_SOME);
notmuch->query_parser->add_valuerangeprocessor (notmuch->value_range_processor);
notmuch->query_parser->add_valuerangeprocessor (notmuch->date_range_processor);
+ notmuch->query_parser->add_valuerangeprocessor (notmuch->last_mod_range_processor);
for (i = 0; i < ARRAY_SIZE (BOOLEAN_PREFIX_EXTERNAL); i++) {
prefix_t *prefix = &BOOLEAN_PREFIX_EXTERNAL[i];
@@ -991,6 +993,8 @@ notmuch_database_close (notmuch_database_t *notmuch)
notmuch->value_range_processor = NULL;
delete notmuch->date_range_processor;
notmuch->date_range_processor = NULL;
+ delete notmuch->last_mod_range_processor;
+ notmuch->last_mod_range_processor = NULL;
return status;
}
--
2.1.0
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