mirror of https://github.com/tstack/lnav.git
122 lines
4.4 KiB
C++
122 lines
4.4 KiB
C++
/**
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* Copyright (c) 2015, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LNAV_COMMAND_EXECUTOR_H
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#define LNAV_COMMAND_EXECUTOR_H
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#include <sqlite3.h>
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#include <future>
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#include <string>
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#include "optional.hpp"
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#include "auto_fd.hh"
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#include "attr_line.hh"
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#include "textview_curses.hh"
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struct exec_context;
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typedef int (*sql_callback_t)(exec_context &ec, sqlite3_stmt *stmt);
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typedef std::future<std::string> (*pipe_callback_t)(
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exec_context &ec, const std::string &cmdline, auto_fd &fd);
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struct exec_context {
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exec_context(std::vector<logline_value> *line_values = nullptr,
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sql_callback_t sql_callback = nullptr,
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pipe_callback_t pipe_callback = nullptr)
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: ec_top_line(vis_line_t(0)),
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ec_dry_run(false),
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ec_line_values(line_values),
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ec_sql_callback(sql_callback),
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ec_pipe_callback(pipe_callback) {
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this->ec_local_vars.push(std::map<std::string, std::string>());
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this->ec_path_stack.emplace_back(".");
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this->ec_source.emplace("command", 1);
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this->ec_output_stack.emplace_back(nonstd::nullopt);
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}
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std::string get_error_prefix() {
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if (this->ec_source.size() <= 1) {
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return "error: ";
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}
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std::pair<std::string, int> source = this->ec_source.top();
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return "error:" + source.first + ":" + std::to_string(source.second) + ":";
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}
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nonstd::optional<FILE *> get_output() {
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for (auto iter = this->ec_output_stack.rbegin();
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iter != this->ec_output_stack.rend();
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++iter) {
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if (*iter) {
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return *iter;
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}
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}
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return nonstd::nullopt;
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}
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vis_line_t ec_top_line;
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bool ec_dry_run;
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std::map<std::string, std::string> ec_override;
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std::vector<logline_value> *ec_line_values;
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std::stack<std::map<std::string, std::string> > ec_local_vars;
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std::map<std::string, std::string> ec_global_vars;
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std::vector<std::string> ec_path_stack;
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std::stack<std::pair<std::string, int>> ec_source;
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std::vector<nonstd::optional<FILE *>> ec_output_stack;
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attr_line_t ec_accumulator;
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sql_callback_t ec_sql_callback;
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pipe_callback_t ec_pipe_callback;
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};
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std::string execute_command(exec_context &ec, const std::string &cmdline);
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std::string execute_sql(exec_context &ec, const std::string &sql, std::string &alt_msg);
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std::string execute_file(exec_context &ec, const std::string &path_and_args, bool multiline = true);
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std::string execute_any(exec_context &ec, const std::string &cmdline);
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void execute_init_commands(exec_context &ec, std::vector<std::pair<std::string, std::string> > &msgs);
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int sql_callback(exec_context &ec, sqlite3_stmt *stmt);
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std::future<std::string> pipe_callback(
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exec_context &ec, const std::string &cmdline, auto_fd &fd);
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int sql_progress(const struct log_cursor &lc);
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void add_global_vars(exec_context &ec);
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extern bookmark_type_t BM_QUERY;
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#endif //LNAV_COMMAND_EXECUTOR_H
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