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#include "buffer_manager.hh"
#include "assert.hh"
#include "buffer.hh"
#include "client_manager.hh"
#include "exception.hh"
#include "file.hh"
#include "ranges.hh"
#include "string.hh"
#include "regex.hh"
namespace Kakoune
{
BufferManager::~BufferManager()
{
// Move buffers to avoid running BufClose with buffers remaining in that list
BufferList buffers = std::move(m_buffers);
for (auto& buffer : buffers)
buffer->on_unregistered();
// Make sure not clients exists
if (ClientManager::has_instance())
ClientManager::instance().clear(true);
}
Buffer* BufferManager::create_buffer(String name, Buffer::Flags flags, BufferLines lines, ByteOrderMark bom, EolFormat eolformat, FsStatus fs_status)
{
auto path = real_path(parse_filename(name));
for (auto& buf : m_buffers)
{
if (buf->name() == name or
(buf->flags() & Buffer::Flags::File and buf->name() == path))
throw runtime_error{"buffer name is already in use"};
}
m_buffers.push_back(std::make_unique<Buffer>(std::move(name), flags, std::move(lines), bom, eolformat, fs_status));
auto* buffer = m_buffers.back().get();
buffer->on_registered();
if (contains(m_buffer_trash, buffer))
throw runtime_error{"buffer got removed during its creation"};
return buffer;
}
void BufferManager::delete_buffer(Buffer& buffer)
{
auto it = find_if(m_buffers, [&](auto& p) { return p.get() == &buffer; });
if (it == m_buffers.end()) // we might be trying to recursively delete this buffer
return;
m_buffer_trash.emplace_back(std::move(*it));
m_buffers.erase(it);
if (ClientManager::has_instance())
ClientManager::instance().ensure_no_client_uses_buffer(buffer);
buffer.on_unregistered();
}
Buffer* BufferManager::get_buffer_ifp(StringView name)
{
auto path = real_path(parse_filename(name));
for (auto& buf : m_buffers)
{
if (buf->name() == name or
(buf->flags() & Buffer::Flags::File and buf->name() == path))
return buf.get();
}
return nullptr;
}
Buffer& BufferManager::get_buffer(StringView name)
{
Buffer* res = get_buffer_ifp(name);
if (not res)
throw runtime_error{format("no such buffer '{}'", name)};
return *res;
}
Buffer* BufferManager::get_buffer_matching_ifp(const Regex& regex)
{
for (auto& buf : m_buffers | reverse())
{
if (StringView name = buf->name(); regex_match(name.begin(), name.end(), regex))
return buf.get();
}
return nullptr;
}
Buffer& BufferManager::get_buffer_matching(const Regex& regex)
{
Buffer* res = get_buffer_matching_ifp(regex);
if (not res)
throw runtime_error{format("no buffer matching '{}'", regex.str())};
return *res;
}
Buffer& BufferManager::get_first_buffer()
{
if (all_of(m_buffers, [](auto& b) { return (b->flags() & Buffer::Flags::Debug); }))
create_buffer("*scratch*", Buffer::Flags::None, {StringData::create("\n")},
ByteOrderMark::None, EolFormat::Lf, {InvalidTime, {}, {}});
return *m_buffers.back();
}
void BufferManager::backup_modified_buffers()
{
for (auto& buf : m_buffers)
{
if ((buf->flags() & Buffer::Flags::File) and buf->is_modified()
and not (buf->flags() & Buffer::Flags::ReadOnly))
write_buffer_to_backup_file(*buf);
}
}
void BufferManager::clear_buffer_trash()
{
m_buffer_trash.clear();
}
void BufferManager::arrange_buffers(ConstArrayView<String> first_ones)
{
Vector<size_t> indices;
for (const auto& name : first_ones)
{
auto it = find_if(m_buffers, [&](auto& buf) { return buf->name() == name or buf->display_name() == name; });
if (it == m_buffers.end())
throw runtime_error{format("no such buffer '{}'", name)};
size_t index = it - m_buffers.begin();
if (contains(indices, index))
throw runtime_error{format("buffer '{}' appears more than once", name)};
indices.push_back(index);
}
BufferList res;
for (size_t index : indices)
res.push_back(std::move(m_buffers[index]));
for (auto& buf : m_buffers)
{
if (buf)
res.push_back(std::move(buf));
}
m_buffers = std::move(res);
}
void BufferManager::make_latest(Buffer& buffer)
{
auto it = find(m_buffers, &buffer);
kak_assert(it != m_buffers.end());
std::rotate(it, it+1, m_buffers.end());
}
}
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