Merge remote-tracking branch 'lenormf/readonly-mode'
This commit is contained in:
commit
003cb8dfea
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@ -231,6 +231,7 @@ Just running *kak* launch a new kak session with a client on local terminal.
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read keystrokes as json on stdin.
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* `-l`: list existing sessions, and check the dead ones
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* `-clear`: clear dead sessions socket files
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* `-ro`: prevent modifications to all buffers from being saved to disk
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At startup, if `-n` is not specified, Kakoune will try to source the file
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`../share/kak/kakrc` relative to the kak binary. This kak file will then try
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@ -864,6 +865,9 @@ Some options are built in Kakoune, and can be used to control it's behaviour:
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writing a buffer, this is autodetected on load.
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* `BOM` _enum(none|utf8)_: define if the file should be written
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with an unicode byte order mark.
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* `readonly` _bool_: prevent modifications from being saved to disk, all
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buffers if set to `true` in the `global` scope, or current buffer if set in
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the `buffer` scope.
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* `incsearch` _bool_: execute search as it is typed
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* `aligntab` _bool_: use tabs for alignment command
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* `autoinfo` _flags(command|onkey|normal)_: display automatic information
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@ -70,6 +70,11 @@ Builtin options
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*BOM* 'enum(none|utf8)'::
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define if the file should be written with an unicode byte order mark
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*readonly* 'bool'::
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prevent modifications from being saved to disk, all
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buffers if set to `true` in the `global` scope, or current buffer if set in
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the `buffer` scope.
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*incsearch* 'bool'::
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execute search as it is typed
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@ -606,6 +606,13 @@ void Buffer::set_fs_timestamp(timespec ts)
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void Buffer::on_option_changed(const Option& option)
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{
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if (option.name() == "readonly")
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{
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if (option.get<bool>())
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m_flags |= Flags::ReadOnly;
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else
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m_flags &= ~Flags::ReadOnly;
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}
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run_hook_in_own_context("BufSetOption",
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format("{}={}", option.name(), option.get_as_string()));
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}
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@ -106,7 +106,8 @@ public:
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New = 1 << 1,
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Fifo = 1 << 2,
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NoUndo = 1 << 3,
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Debug = 1 << 4
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Debug = 1 << 4,
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ReadOnly = 1 << 5,
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};
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Buffer(String name, Flags flags, StringView data = {},
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@ -87,7 +87,8 @@ void BufferManager::backup_modified_buffers()
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{
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for (auto& buf : m_buffers)
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{
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if ((buf->flags() & Buffer::Flags::File) and buf->is_modified())
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if ((buf->flags() & Buffer::Flags::File) and buf->is_modified()
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and not (buf->flags() & Buffer::Flags::ReadOnly))
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write_buffer_to_backup_file(*buf);
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}
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}
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@ -239,6 +239,12 @@ void write_buffer(const ParametersParser& parser, Context& context, const ShellC
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if (parser.positional_count() == 0 and !(buffer.flags() & Buffer::Flags::File))
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throw runtime_error("cannot write a non file buffer without a filename");
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// if the buffer is in read-only mode and we try to save it directly
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// or we try to write to it indirectly using e.g. a symlink, throw an error
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if ((context.buffer().flags() & Buffer::Flags::ReadOnly)
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and (parser.positional_count() == 0 or real_path(parser[0]) == buffer.name()))
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throw runtime_error("cannot overwrite the buffer when in readonly mode");
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auto filename = parser.positional_count() == 0 ?
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buffer.name() : parse_filename(parser[0]);
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write_buffer_to_file(buffer, filename);
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@ -260,7 +266,8 @@ void write_all_buffers()
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{
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for (auto& buffer : BufferManager::instance())
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{
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if ((buffer->flags() & Buffer::Flags::File) and buffer->is_modified())
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if ((buffer->flags() & Buffer::Flags::File) and buffer->is_modified()
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and !(buffer->flags() & Buffer::Flags::ReadOnly))
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write_buffer_to_file(*buffer, buffer->name());
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}
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}
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30
src/main.cc
30
src/main.cc
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@ -265,6 +265,7 @@ void register_options()
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reg.declare_option("modelinefmt", "format string used to generate the modeline",
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"%val{bufname} %val{cursor_line}:%val{cursor_char_column} "_str);
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reg.declare_option("debug", "various debug flags", DebugFlags::None);
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reg.declare_option("readonly", "prevent buffers from being modified", false);
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}
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struct convert_to_client_mode
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@ -460,7 +461,7 @@ int run_client(StringView session, StringView init_command, UIType ui_type)
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}
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int run_server(StringView session, StringView init_command,
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bool ignore_kakrc, bool daemon, UIType ui_type,
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bool ignore_kakrc, bool daemon, bool readonly, UIType ui_type,
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ConstArrayView<StringView> files, ByteCoord target_coord)
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{
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static bool terminate = false;
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@ -503,6 +504,8 @@ int run_server(StringView session, StringView init_command,
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write_to_debug_buffer("*** This is the debug buffer, where debug info will be written ***");
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GlobalScope::instance().options().get_local_option("readonly").set(readonly);
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Server server(session.empty() ? to_string(getpid()) : session.str());
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bool startup_error = false;
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@ -536,7 +539,9 @@ int run_server(StringView session, StringView init_command,
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{
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try
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{
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open_or_create_file_buffer(file);
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Buffer *buffer = open_or_create_file_buffer(file);
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if (readonly)
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buffer->flags() |= Buffer::Flags::ReadOnly;
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}
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catch (Kakoune::runtime_error& error)
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{
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@ -741,7 +746,8 @@ int main(int argc, char* argv[])
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{ "q", { false, "in filter mode, be quiet about errors applying keys" } },
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{ "ui", { true, "set the type of user interface to use (ncurses, dummy, or json)" } },
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{ "l", { false, "list existing sessions" } },
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{ "clear", { false, "clear dead sessions" } } }
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{ "clear", { false, "clear dead sessions" } },
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{ "ro", { false, "readonly mode" } } }
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};
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try
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{
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@ -773,11 +779,11 @@ int main(int argc, char* argv[])
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if (auto session = parser.get_switch("p"))
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{
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for (auto opt : { "c", "n", "s", "d", "e" })
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for (auto opt : { "c", "n", "s", "d", "e", "ro" })
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{
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if (parser.get_switch(opt))
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{
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write_stderr(format("error: -{} makes not sense with -p\n", opt));
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write_stderr(format("error: -{} is incompatible with -p\n", opt));
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return -1;
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}
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}
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@ -789,20 +795,27 @@ int main(int argc, char* argv[])
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if (auto keys = parser.get_switch("f"))
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{
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if (parser.get_switch("ro"))
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{
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write_stderr("error: -ro is incompatible with -f\n");
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return -1;
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}
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Vector<StringView> files;
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for (size_t i = 0; i < parser.positional_count(); ++i)
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files.emplace_back(parser[i]);
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return run_filter(*keys, init_command, files, (bool)parser.get_switch("q"));
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return run_filter(*keys, init_command, files,
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(bool)parser.get_switch("q"));
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}
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if (auto server_session = parser.get_switch("c"))
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{
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for (auto opt : { "n", "s", "d" })
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for (auto opt : { "n", "s", "d", "ro" })
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{
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if (parser.get_switch(opt))
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{
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write_stderr(format("error: -{} makes not sense with -c\n", opt));
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write_stderr(format("error: -{} is incompatible with -c\n", opt));
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return -1;
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}
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}
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@ -840,6 +853,7 @@ int main(int argc, char* argv[])
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return run_server(session, init_command,
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(bool)parser.get_switch("n"),
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(bool)parser.get_switch("d"),
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(bool)parser.get_switch("ro"),
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ui_type, files, target_coord);
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}
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catch (convert_to_client_mode& convert)
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