Files
textmate/Frameworks/command/src/runner.cc
Allan Odgaard 9894969e67 Initial commit
2012-08-09 16:25:56 +02:00

209 lines
7.3 KiB
C++

#include "runner.h"
#include <OakSystem/application.h>
#include <io/path.h>
#include <regexp/format_string.h>
OAK_DEBUG_VAR(Command_Runner);
static std::string trim_right (std::string const& str, std::string const& trimChars = " \t\n")
{
std::string::size_type len = str.find_last_not_of(trimChars);
return len == std::string::npos ? str : str.substr(0, len+1);
}
namespace command
{
void fix_shebang (std::string* command)
{
if(command->substr(0, 2) != "#!")
command->insert(0, "#!/usr/bin/env bash\n[[ -f \"${TM_SUPPORT_PATH}/lib/bash_init.sh\" ]] && . \"${TM_SUPPORT_PATH}/lib/bash_init.sh\"\n\n");
}
void runner_t::my_process_t::did_exit (int rc)
{
oak::process_t::did_exit(rc);
_callback->did_exit(rc);
}
void runner_t::my_reader_t::receive_data (char const* bytes, size_t len)
{
_callback->receive_data(bytes, len, _is_error);
}
// ==================
// = Command Runner =
// ==================
runner_t::runner_t (bundle_command_t const& command, ng::buffer_t const& buffer, ng::ranges_t const& selection, std::map<std::string, std::string> const& environment, delegate_ptr delegate) : _command(command), _environment(environment), _delegate(delegate), _input_range(text::range_t::undefined), _input_was_selection(false), _output_is_html(false), _did_detach(false), _retain_count(3), _process(this), _return_code(-2)
{
fix_shebang(&_command.command);
}
runner_ptr runner (bundle_command_t const& command, ng::buffer_t const& buffer, ng::ranges_t const& selection, std::map<std::string, std::string> const& environment, delegate_ptr delegate)
{
return runner_ptr(new runner_t(command, buffer, selection, environment, delegate));
}
void runner_t::release ()
{
D(DBF_Command_Runner, bug("retain count %zu\n", _retain_count););
if(--_retain_count == 0)
{
finish();
_output_reader = my_reader_ptr();
_error_reader = my_reader_ptr();
}
}
void runner_t::launch ()
{
ASSERT(_delegate);
int inputPipe[2];
pipe(inputPipe);
_input_range = _command.input == input::nothing ? text::range_t::undefined : _delegate->write_unit_to_fd(inputPipe[1], _command.input, _command.input_fallback, _command.input_format, _command.scope_selector, _environment, &_input_was_selection);
close(inputPipe[1]);
// ----------8<----------
_process.command = _command.command;
_process.input_fd = inputPipe[0];
_process.environment = _environment;
_process.launch();
_output_reader = my_reader_ptr(new my_reader_t(_process.output_fd, shared_from_this(), false));
_error_reader = my_reader_ptr(new my_reader_t(_process.error_fd, shared_from_this(), true));
if(_command.output == output::new_window && _command.output_format == output_format::html)
{
_output_is_html = true;
_delegate->detach();
_did_detach = true;
}
}
void runner_t::send_html_data (char const* bytes, size_t len)
{
_delegate->accept_html_data(shared_from_this(), bytes, len);
_callbacks(&callback_t::output, shared_from_this(), bytes, len);
}
void runner_t::receive_data (char const* bytes, size_t len, bool is_error)
{
D(DBF_Command_Runner, bug("%zu bytes (error: %s)\n", len, BSTR(is_error)););
if(len == 0)
return release();
if(is_error)
_err.insert(_err.end(), bytes, bytes + len);
else if(_output_is_html)
send_html_data(bytes, len);
else
_out.insert(_out.end(), bytes, bytes + len);
}
void runner_t::wait (bool alsoForDetached)
{
while(_retain_count != 0 && (alsoForDetached || !_did_detach))
{
if(CFRunLoopRunInMode(kCFRunLoopDefaultMode, 20, true) == kCFRunLoopRunFinished)
break;
}
}
void runner_t::did_exit (int rc)
{
D(DBF_Command_Runner, bug("%d\n", rc););
_return_code = rc;
release();
}
void runner_t::finish ()
{
std::string newOut, newErr;
oak::replace_copy(_out.begin(), _out.end(), beginof(_process.temp_path), endof(_process.temp_path), beginof(_command.name), endof(_command.name), back_inserter(newOut));
oak::replace_copy(_err.begin(), _err.end(), beginof(_process.temp_path), endof(_process.temp_path), beginof(_command.name), endof(_command.name), back_inserter(newErr));
newOut.swap(_out);
newErr.swap(_err);
output::type placement = _command.output;
output_format::type format = _command.output_format;
output_caret::type outputCaret = _command.output_caret;
enum { exit_discard = 200, exit_replace_text, exit_replace_document, exit_insert_text, exit_insert_snippet, exit_show_html, exit_show_tool_tip, exit_create_new_document };
switch(_return_code)
{
case exit_discard: placement = output::discard; break;
case exit_replace_text: placement = output::replace_input; format = output_format::text; outputCaret = output_caret::heuristic; break;
case exit_replace_document: placement = output::replace_document; format = output_format::text; outputCaret = output_caret::interpolate_by_line; break;
case exit_insert_text: placement = output::after_input; format = output_format::text; outputCaret = output_caret::after_output; break;
case exit_insert_snippet: placement = _command.input == input::selection ? output::replace_input : output::after_input; format = output_format::snippet; break;
case exit_show_html: placement = output::new_window; format = output_format::html; break;
case exit_show_tool_tip: placement = output::tool_tip; format = output_format::text; break;
case exit_create_new_document: placement = output::new_window; format = output_format::text; break;
}
D(DBF_Command_Runner, bug("placement %d, format %d\n", placement, format););
if(_return_code != 0 && !(200 <= _return_code && _return_code <= 207))
{
_delegate->show_error(_command, _return_code, _out, _err);
}
else if(placement == output::new_window)
{
if(format == output_format::text)
{
_delegate->show_document(_err + _out);
}
else if(format == output_format::html)
{
if(!_err.empty())
send_html_data(_err.data(), _err.size());
if(!_output_is_html)
{
_output_is_html = true;
send_html_data(_out.data(), _out.size());
}
}
}
else if(placement == output::tool_tip)
{
std::string str = trim_right(_err + _out);
if(!str.empty())
_delegate->show_tool_tip(str);
}
else if(placement != output::discard)
{
if(outputCaret == output_caret::heuristic)
{
if(_command.input == input::selection && _input_was_selection)
outputCaret = output_caret::select_output;
else if(_command.input == input::selection && (_command.input_fallback == input::line || _command.input_fallback == input::word || _command.input_fallback == input::scope))
outputCaret = output_caret::interpolate_by_char;
else if(_command.input == input::selection && (_command.input_fallback == input::entire_document))
outputCaret = output_caret::interpolate_by_line;
else
outputCaret = output_caret::after_output;
}
if(_input_range.is_undefined())
{
switch(placement)
{
case output::after_input: placement = output::at_caret; break;
case output::replace_input: placement = output::replace_selection; break;
}
}
_delegate->accept_result(_out, placement, format, outputCaret, _input_range, _environment);
}
_delegate->done();
_delegate.reset();
_callbacks(&callback_t::done, shared_from_this());
}
} /* command */