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Add support for non-scrolling fifo buffers
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26dd21706e
commit
e83123de1f
@ -12,7 +12,7 @@ def -shell-params -file-completion \
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fi
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echo "eval -try-client '$kak_opt_toolsclient' %{
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edit! -fifo ${output} *grep*
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edit! -fifo ${output} -scroll *grep*
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set buffer filetype grep
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hook buffer BufClose .* %{ nop %sh{ rm -r $(dirname ${output}) } }
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}"
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@ -7,7 +7,7 @@ def -shell-params make %{ %sh{
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( eval ${kak_opt_makecmd} "$@" > ${output} 2>&1 ) > /dev/null 2>&1 < /dev/null &
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echo "eval -try-client '$kak_opt_toolsclient' %{
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edit! -fifo ${output} *make*
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edit! -fifo ${output} -scroll *make*
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set buffer filetype make
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hook buffer BufClose .* %{ nop %sh{ rm -r $(dirname ${output}) } }
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}"
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@ -22,16 +22,29 @@ CharCount get_column(const Buffer& buffer,
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return col;
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}
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Buffer* create_fifo_buffer(String name, int fd)
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Buffer* create_fifo_buffer(String name, int fd, bool scroll)
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{
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Buffer* buffer = new Buffer(std::move(name), Buffer::Flags::Fifo | Buffer::Flags::NoUndo);
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auto watcher = new FDWatcher(fd, [buffer](FDWatcher& watcher) {
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auto watcher = new FDWatcher(fd, [buffer, scroll](FDWatcher& watcher) {
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constexpr size_t buffer_size = 1024 * 16;
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char data[buffer_size];
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ssize_t count = read(watcher.fd(), data, buffer_size);
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buffer->insert(buffer->end()-1, count > 0 ? String(data, data+count)
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: "*** kak: fifo closed ***\n");
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auto pos = buffer->end()-1;
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bool prevent_scrolling = pos == buffer->begin() and not scroll;
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if (prevent_scrolling)
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++pos;
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buffer->insert(pos, count > 0 ? String(data, data+count)
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: "*** kak: fifo closed ***\n");
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if (prevent_scrolling)
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{
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buffer->erase(buffer->begin(), buffer->begin()+1);
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buffer->insert(buffer->end(), "\n");
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}
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if (count <= 0)
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{
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kak_assert(buffer->flags() & Buffer::Flags::Fifo);
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@ -41,7 +41,7 @@ inline void avoid_eol(const Buffer& buffer, Selection& sel)
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CharCount get_column(const Buffer& buffer,
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CharCount tabstop, BufferCoord coord);
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Buffer* create_fifo_buffer(String name, int fd);
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Buffer* create_fifo_buffer(String name, int fd, bool scroll = false);
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}
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@ -46,7 +46,7 @@ Buffer* open_or_create(const String& filename, Context& context)
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return buffer;
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}
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Buffer* open_fifo(const String& name , const String& filename)
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Buffer* open_fifo(const String& name , const String& filename, bool scroll)
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{
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int fd = open(parse_filename(filename).c_str(), O_RDONLY);
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fcntl(fd, F_SETFD, FD_CLOEXEC);
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@ -55,7 +55,7 @@ Buffer* open_fifo(const String& name , const String& filename)
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BufferManager::instance().delete_buffer_if_exists(name);
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return create_fifo_buffer(std::move(name), fd);
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return create_fifo_buffer(std::move(name), fd, scroll);
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}
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const PerArgumentCommandCompleter filename_completer({
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@ -111,7 +111,7 @@ void edit(const ParametersParser& parser, Context& context)
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buffer = new Buffer(name, Buffer::Flags::None);
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}
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else if (parser.has_option("fifo"))
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buffer = open_fifo(name, parser.option_value("fifo"));
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buffer = open_fifo(name, parser.option_value("fifo"), parser.has_option("scroll"));
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else
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buffer = open_or_create(name, context);
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}
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@ -139,7 +139,8 @@ void edit(const ParametersParser& parser, Context& context)
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ParameterDesc edit_params{
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SwitchMap{ { "scratch", { false, "create a scratch buffer, not linked to a file" } },
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{ "fifo", { true, "create a buffer reading its content from a named fifo" } } },
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{ "fifo", { true, "create a buffer reading its content from a named fifo" } },
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{ "scroll", { false, "place the initial cursor so that the fifo will scroll to show new data" } } },
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ParameterDesc::Flags::None, 1, 3
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};
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