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command/database: support relative offsets for "searchadd" 

Closes https://github.com/MusicPlayerDaemon/MPD/issues/1337
This commit is contained in:
Max Kellermann 2021-11-23 12:03:20 +01:00
parent fd5b195879
commit 4682ae0898
4 changed files with 22 additions and 2 deletions
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1
NEWS
View File

@ -1,5 +1,6 @@
ver 0.23.5 (not yet released)
* protocol
- support relative offsets for "searchadd"
- fix "searchaddpl" bug (bogus error "Bad position")
* migrate to PCRE2
* GCC 12 build fixes

3
doc/protocol.rst
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@ -1222,6 +1222,8 @@ The music database
The ``position`` parameter specifies where the songs will be
inserted. [#since_0_23]_
It can be relative to the current song as in :ref:`addid
<command_addid>`. [#since_0_23_5]_
.. _command_searchaddpl:
@ -1659,3 +1661,4 @@ client-to-client messages are local to the current partition.
.. [#since_0_23_1] Since :program:`MPD` 0.23.1
.. [#since_0_23_3] Since :program:`MPD` 0.23.3
.. [#since_0_23_4] Since :program:`MPD` 0.23.4
.. [#since_0_23_5] Since :program:`MPD` 0.23.5

2
meson.build
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@ -44,7 +44,7 @@ version_conf = configuration_data()
version_conf.set_quoted('PACKAGE', meson.project_name())
version_conf.set_quoted('PACKAGE_NAME', meson.project_name())
version_conf.set_quoted('VERSION', meson.project_version())
version_conf.set_quoted('PROTOCOL_VERSION', '0.23.4')
version_conf.set_quoted('PROTOCOL_VERSION', '0.23.5')
configure_file(output: 'Version.h', configuration: version_conf)
conf = configuration_data()

18
src/command/DatabaseCommands.cxx
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@ -18,6 +18,7 @@
*/
#include "DatabaseCommands.hxx"
#include "PositionArg.hxx"
#include "Request.hxx"
#include "Partition.hxx"
#include "db/DatabaseQueue.hxx"
@ -86,6 +87,20 @@ ParseQueuePosition(Request &args, unsigned queue_length)
return queue_length;
}
static unsigned
ParseInsertPosition(Request &args, const playlist &playlist)
{
if (args.size >= 2 && StringIsEqual(args[args.size - 2], "position")) {
unsigned position = ParseInsertPosition(args.back(), playlist);
args.pop_back();
args.pop_back();
return position;
}
/* append to the end of the queue by default */
return playlist.queue.GetLength();
}
/**
* Convert all remaining arguments to a #DatabaseSelection.
*
@ -160,7 +175,8 @@ handle_match_add(Client &client, Request args, bool fold_case)
{
auto &partition = client.GetPartition();
const auto queue_length = partition.playlist.queue.GetLength();
const unsigned position = ParseQueuePosition(args, queue_length);
const unsigned position =
ParseInsertPosition(args, partition.playlist);
SongFilter filter;
const auto selection = ParseDatabaseSelection(args, fold_case, filter);