[Patch v2 13/13] lib: add support for named queries
David Bremner
david at tethera.net
Sat Mar 26 10:57:23 PDT 2016
This relies on the optional presense of xapian field processors, and the
library config API.
---
doc/man7/notmuch-search-terms.rst | 8 ++++++++
lib/Makefile.local | 1 +
lib/database-private.h | 1 +
lib/database.cc | 3 +++
lib/query-fp.cc | 42 +++++++++++++++++++++++++++++++++++++++
lib/query-fp.h | 42 +++++++++++++++++++++++++++++++++++++++
test/T600-named-queries.sh | 17 ++++++++++++++++
7 files changed, 114 insertions(+)
create mode 100644 lib/query-fp.cc
create mode 100644 lib/query-fp.h
diff --git a/doc/man7/notmuch-search-terms.rst b/doc/man7/notmuch-search-terms.rst
index 29e8b03..7474f53 100644
--- a/doc/man7/notmuch-search-terms.rst
+++ b/doc/man7/notmuch-search-terms.rst
@@ -56,6 +56,8 @@ indicate user-supplied values):
- lastmod:<initial-revision>..<final-revision>
+- query:<name>
+
The **from:** prefix is used to match the name or address of the sender
of an email message.
@@ -132,6 +134,11 @@ were added/removed or filenames changed). This is usually used in
conjunction with the **--uuid** argument to **notmuch search**
to find messages that have changed since an earlier query.
+The **query:** prefix allows queries to refer to previously saved
+queries added with **notmuch-config(1)**. Named queries are only
+available if notmuch is built with **Xapian Field Processors** (see
+below).
+
Operators
---------
@@ -385,6 +392,7 @@ notmuch was built against a sufficiently recent version of Xapian by running
Currently the following features require field processor support:
- non-range date queries, e.g. "date:today"
+- named queries e.g. "query:my_special_query"
SEE ALSO
========
diff --git a/lib/Makefile.local b/lib/Makefile.local
index 96899bf..fab1242 100644
--- a/lib/Makefile.local
+++ b/lib/Makefile.local
@@ -49,6 +49,7 @@ libnotmuch_cxx_srcs = \
$(dir)/index.cc \
$(dir)/message.cc \
$(dir)/query.cc \
+ $(dir)/query-fp.cc \
$(dir)/config.cc \
$(dir)/thread.cc
diff --git a/lib/database-private.h b/lib/database-private.h
index b5c1f90..5ab4001 100644
--- a/lib/database-private.h
+++ b/lib/database-private.h
@@ -182,6 +182,7 @@ struct _notmuch_database {
Xapian::ValueRangeProcessor *date_range_processor;
#if HAVE_XAPIAN_FIELD_PROCESSOR
Xapian::FieldProcessor *date_field_processor;
+ Xapian::FieldProcessor *query_field_processor;
#endif
Xapian::ValueRangeProcessor *last_mod_range_processor;
};
diff --git a/lib/database.cc b/lib/database.cc
index 0e3c90c..8df5555 100644
--- a/lib/database.cc
+++ b/lib/database.cc
@@ -20,6 +20,7 @@
#include "database-private.h"
#include "parse-time-vrp.h"
+#include "query-fp.h"
#include "string-util.h"
#include <iostream>
@@ -1005,6 +1006,8 @@ notmuch_database_open_verbose (const char *path,
* with a .. to the range processor */
notmuch->date_field_processor = new DateFieldProcessor();
notmuch->query_parser->add_boolean_prefix("date", notmuch->date_field_processor);
+ notmuch->query_field_processor = new QueryFieldProcessor (*notmuch->query_parser, notmuch);
+ notmuch->query_parser->add_boolean_prefix("query", notmuch->query_field_processor);
#endif
notmuch->last_mod_range_processor = new Xapian::NumberValueRangeProcessor (NOTMUCH_VALUE_LAST_MOD, "lastmod:");
diff --git a/lib/query-fp.cc b/lib/query-fp.cc
new file mode 100644
index 0000000..ee5a306
--- /dev/null
+++ b/lib/query-fp.cc
@@ -0,0 +1,42 @@
+/* query-fp.cc - "query:" field processor glue glue
+ *
+ * This file is part of notmuch.
+ *
+ * Copyright © 2016 David Bremner
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: David Bremner <david at tethera.net>
+ */
+
+#include "database-private.h"
+#include "query-fp.h"
+#include <iostream>
+
+#if HAVE_XAPIAN_FIELD_PROCESSOR
+
+Xapian::Query QueryFieldProcessor::operator()(const std::string & name) {
+ std::string key = "query." + name;
+ char *expansion;
+ notmuch_status_t status;
+
+ status = notmuch_database_get_config (notmuch, key.c_str(), &expansion);
+ if (status) {
+ throw Xapian::QueryParserError("error looking up key" + name);
+
+ }
+
+ return parser.parse_query (expansion, NOTMUCH_QUERY_PARSER_FLAGS);
+}
+#endif
diff --git a/lib/query-fp.h b/lib/query-fp.h
new file mode 100644
index 0000000..67f8705
--- /dev/null
+++ b/lib/query-fp.h
@@ -0,0 +1,42 @@
+/* query-fp.h - query field processor glue
+ *
+ * This file is part of notmuch.
+ *
+ * Copyright © 2016 David Bremner
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: David Bremner <david at tethera.net>
+ */
+
+#ifndef NOTMUCH_QUERY_FP_H
+#define NOTMUCH_QUERY_FP_H
+
+#include <xapian.h>
+#include "notmuch.h"
+
+#if HAVE_XAPIAN_FIELD_PROCESSOR
+class QueryFieldProcessor : public Xapian::FieldProcessor {
+ protected:
+ Xapian::QueryParser &parser;
+ notmuch_database_t *notmuch;
+
+ public:
+ QueryFieldProcessor (Xapian::QueryParser &parser_, notmuch_database_t *notmuch_)
+ : parser(parser_), notmuch(notmuch_) { };
+
+ Xapian::Query operator()(const std::string & str);
+};
+#endif
+#endif /* NOTMUCH_QUERY_FP_H */
diff --git a/test/T600-named-queries.sh b/test/T600-named-queries.sh
index 0922620..f0ae24f 100755
--- a/test/T600-named-queries.sh
+++ b/test/T600-named-queries.sh
@@ -50,4 +50,21 @@ notmuch restore < BEFORE
notmuch dump | grep '^#@' > OUTPUT
test_expect_equal_file QUERIES.BEFORE OUTPUT
+if [ $NOTMUCH_HAVE_XAPIAN_FIELD_PROCESSOR -eq 1 ]; then
+ test_begin_subtest "search named query"
+ notmuch search query:test > OUTPUT
+ notmuch search $QUERYSTR > EXPECTED
+ test_expect_equal_file EXPECTED OUTPUT
+
+ test_begin_subtest "search named query with other terms"
+ notmuch search query:test and subject:Maildir > OUTPUT
+ notmuch search $QUERYSTR and subject:Maildir > EXPECTED
+ test_expect_equal_file EXPECTED OUTPUT
+
+ test_begin_subtest "search nested named query"
+ notmuch search query:test2 > OUTPUT
+ notmuch search $QUERYSTR2 > EXPECTED
+ test_expect_equal_file EXPECTED OUTPUT
+fi
+
test_done
--
2.6.4
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