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+/**
+ * Copyright (c) 2007-2016, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @file lnav.cc
+ *
+ * XXX This file has become a dumping ground for code and needs to be broken up
+ * a bit.
+ */
+
+#ifdef __CYGWIN__
+# include <alloca.h>
+#endif
+
+#include <errno.h>
+#include <fcntl.h>
+#include <glob.h>
+#include <locale.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <termios.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "config.h"
+
+#if defined(__OpenBSD__) && defined(__clang__) \
+ && !defined(_WCHAR_H_CPLUSPLUS_98_CONFORMANCE_)
+# define _WCHAR_H_CPLUSPLUS_98_CONFORMANCE_
+#endif
+#include <algorithm>
+#include <functional>
+#include <map>
+#include <memory>
+#include <set>
+#include <utility>
+#include <vector>
+
+#include <sqlite3.h>
+
+#ifdef HAVE_BZLIB_H
+# include <bzlib.h>
+#endif
+
+#include "all_logs_vtab.hh"
+#include "base/ansi_scrubber.hh"
+#include "base/fs_util.hh"
+#include "base/func_util.hh"
+#include "base/future_util.hh"
+#include "base/humanize.hh"
+#include "base/humanize.time.hh"
+#include "base/injector.bind.hh"
+#include "base/isc.hh"
+#include "base/itertools.hh"
+#include "base/lnav.console.hh"
+#include "base/lnav_log.hh"
+#include "base/paths.hh"
+#include "base/string_util.hh"
+#include "bookmarks.hh"
+#include "bottom_status_source.hh"
+#include "bound_tags.hh"
+#include "breadcrumb_curses.hh"
+#include "CLI/CLI.hpp"
+#include "dump_internals.hh"
+#include "environ_vtab.hh"
+#include "filter_sub_source.hh"
+#include "fstat_vtab.hh"
+#include "grep_proc.hh"
+#include "hist_source.hh"
+#include "init-sql.h"
+#include "listview_curses.hh"
+#include "lnav.events.hh"
+#include "lnav.hh"
+#include "lnav.indexing.hh"
+#include "lnav.management_cli.hh"
+#include "lnav_commands.hh"
+#include "lnav_config.hh"
+#include "lnav_util.hh"
+#include "log_data_helper.hh"
+#include "log_data_table.hh"
+#include "log_format_loader.hh"
+#include "log_gutter_source.hh"
+#include "log_vtab_impl.hh"
+#include "logfile.hh"
+#include "logfile_sub_source.hh"
+#include "piper_proc.hh"
+#include "readline_curses.hh"
+#include "readline_highlighters.hh"
+#include "regexp_vtab.hh"
+#include "scn/scn.h"
+#include "service_tags.hh"
+#include "session_data.hh"
+#include "spectro_source.hh"
+#include "sql_help.hh"
+#include "sql_util.hh"
+#include "sqlite-extension-func.hh"
+#include "sqlitepp.client.hh"
+#include "static_file_vtab.hh"
+#include "tailer/tailer.looper.hh"
+#include "term_extra.hh"
+#include "termios_guard.hh"
+#include "textfile_highlighters.hh"
+#include "textview_curses.hh"
+#include "top_status_source.hh"
+#include "view_helpers.crumbs.hh"
+#include "view_helpers.examples.hh"
+#include "view_helpers.hist.hh"
+#include "views_vtab.hh"
+#include "vt52_curses.hh"
+#include "xpath_vtab.hh"
+#include "xterm_mouse.hh"
+
+#ifdef HAVE_LIBCURL
+# include <curl/curl.h>
+#endif
+
+#include "curl_looper.hh"
+
+#if HAVE_ARCHIVE_H
+# include <archive.h>
+#endif
+
+#include "archive_manager.hh"
+#include "command_executor.hh"
+#include "field_overlay_source.hh"
+#include "hotkeys.hh"
+#include "log_actions.hh"
+#include "readline_callbacks.hh"
+#include "readline_possibilities.hh"
+#include "shlex.hh"
+#include "url_loader.hh"
+#include "yajlpp/yajlpp.hh"
+
+#ifndef SYSCONFDIR
+# define SYSCONFDIR "/usr/etc"
+#endif
+
+using namespace std::literals::chrono_literals;
+using namespace lnav::roles::literals;
+
+static std::vector<std::string> DEFAULT_FILES;
+static auto intern_lifetime = intern_string::get_table_lifetime();
+
+const int ZOOM_LEVELS[] = {
+ 1,
+ 30,
+ 60,
+ 5 * 60,
+ 15 * 60,
+ 60 * 60,
+ 4 * 60 * 60,
+ 8 * 60 * 60,
+ 24 * 60 * 60,
+ 7 * 24 * 60 * 60,
+};
+
+const ssize_t ZOOM_COUNT = sizeof(ZOOM_LEVELS) / sizeof(int);
+
+const std::vector<std::string> lnav_zoom_strings = {
+ "1-second",
+ "30-second",
+ "1-minute",
+ "5-minute",
+ "15-minute",
+ "1-hour",
+ "4-hour",
+ "8-hour",
+ "1-day",
+ "1-week",
+};
+
+static const std::vector<std::string> DEFAULT_DB_KEY_NAMES = {
+ "match_index",
+ "capture_index",
+ "capture_count",
+ "range_start",
+ "range_stop",
+ "inode",
+ "device",
+ "inode",
+ "rowid",
+ "st_dev",
+ "st_ino",
+ "st_mode",
+ "st_rdev",
+ "st_uid",
+ "st_gid",
+};
+
+const static size_t MAX_STDIN_CAPTURE_SIZE = 10 * 1024 * 1024;
+
+static auto bound_pollable_supervisor
+ = injector::bind<pollable_supervisor>::to_singleton();
+
+static auto bound_filter_sub_source
+ = injector::bind<filter_sub_source>::to_singleton();
+
+static auto bound_active_files = injector::bind<file_collection>::to_instance(
+ +[]() { return &lnav_data.ld_active_files; });
+
+static auto bound_sqlite_db
+ = injector::bind<auto_sqlite3>::to_instance(&lnav_data.ld_db);
+
+static auto bound_lnav_flags
+ = injector::bind<unsigned long, lnav_flags_tag>::to_instance(
+ &lnav_data.ld_flags);
+
+static auto bound_last_rel_time
+ = injector::bind<relative_time, last_relative_time_tag>::to_singleton();
+
+static auto bound_term_extra = injector::bind<term_extra>::to_singleton();
+
+static auto bound_xterm_mouse = injector::bind<xterm_mouse>::to_singleton();
+
+static auto bound_scripts = injector::bind<available_scripts>::to_singleton();
+
+static auto bound_curl
+ = injector::bind_multiple<isc::service_base>()
+ .add_singleton<curl_looper, services::curl_streamer_t>();
+
+static auto bound_tailer
+ = injector::bind_multiple<isc::service_base>()
+ .add_singleton<tailer::looper, services::remote_tailer_t>();
+
+static auto bound_main = injector::bind_multiple<static_service>()
+ .add_singleton<main_looper, services::main_t>();
+
+namespace injector {
+template<>
+void
+force_linking(last_relative_time_tag anno)
+{
+}
+
+template<>
+void
+force_linking(lnav_flags_tag anno)
+{
+}
+
+template<>
+void
+force_linking(services::curl_streamer_t anno)
+{
+}
+
+template<>
+void
+force_linking(services::remote_tailer_t anno)
+{
+}
+
+template<>
+void
+force_linking(services::main_t anno)
+{
+}
+} // namespace injector
+
+static breadcrumb_curses breadcrumb_view;
+
+struct lnav_data_t lnav_data;
+
+bool
+setup_logline_table(exec_context& ec)
+{
+ // Hidden columns don't show up in the table_info pragma.
+ static const char* hidden_table_columns[] = {
+ "log_time_msecs",
+ "log_path",
+ "log_text",
+ "log_body",
+
+ nullptr,
+ };
+
+ textview_curses& log_view = lnav_data.ld_views[LNV_LOG];
+ bool retval = false;
+ bool update_possibilities
+ = (lnav_data.ld_rl_view != nullptr && ec.ec_local_vars.size() == 1);
+
+ if (update_possibilities) {
+ lnav_data.ld_rl_view->clear_possibilities(ln_mode_t::SQL, "*");
+ add_view_text_possibilities(lnav_data.ld_rl_view,
+ ln_mode_t::SQL,
+ "*",
+ &log_view,
+ text_quoting::sql);
+ }
+
+ if (log_view.get_inner_height()) {
+ static intern_string_t logline = intern_string::lookup("logline");
+ vis_line_t vl = log_view.get_top();
+ content_line_t cl = lnav_data.ld_log_source.at_base(vl);
+
+ lnav_data.ld_vtab_manager->unregister_vtab(logline);
+ lnav_data.ld_vtab_manager->register_vtab(
+ std::make_shared<log_data_table>(lnav_data.ld_log_source,
+ *lnav_data.ld_vtab_manager,
+ cl,
+ logline));
+
+ if (update_possibilities) {
+ log_data_helper ldh(lnav_data.ld_log_source);
+
+ ldh.parse_line(cl);
+
+ std::map<const intern_string_t,
+ json_ptr_walk::walk_list_t>::const_iterator pair_iter;
+ for (pair_iter = ldh.ldh_json_pairs.begin();
+ pair_iter != ldh.ldh_json_pairs.end();
+ ++pair_iter)
+ {
+ for (size_t lpc = 0; lpc < pair_iter->second.size(); lpc++) {
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL,
+ "*",
+ ldh.format_json_getter(pair_iter->first, lpc));
+ }
+ }
+ }
+
+ retval = true;
+ }
+
+ auto& db_key_names = lnav_data.ld_db_key_names;
+
+ db_key_names = DEFAULT_DB_KEY_NAMES;
+
+ if (update_possibilities) {
+ add_env_possibilities(ln_mode_t::SQL);
+
+ lnav_data.ld_rl_view->add_possibility(ln_mode_t::SQL,
+ "*",
+ std::begin(sql_keywords),
+ std::end(sql_keywords));
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL, "*", sql_function_names);
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL, "*", hidden_table_columns);
+
+ for (int lpc = 0; sqlite_registration_funcs[lpc]; lpc++) {
+ struct FuncDef* basic_funcs;
+ struct FuncDefAgg* agg_funcs;
+
+ sqlite_registration_funcs[lpc](&basic_funcs, &agg_funcs);
+ for (int lpc2 = 0; basic_funcs && basic_funcs[lpc2].zName; lpc2++) {
+ const FuncDef& func_def = basic_funcs[lpc2];
+
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL,
+ "*",
+ std::string(func_def.zName) + (func_def.nArg ? "(" : "()"));
+ }
+ for (int lpc2 = 0; agg_funcs && agg_funcs[lpc2].zName; lpc2++) {
+ const FuncDefAgg& func_def = agg_funcs[lpc2];
+
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL,
+ "*",
+ std::string(func_def.zName) + (func_def.nArg ? "(" : "()"));
+ }
+ }
+
+ for (const auto& pair : sqlite_function_help) {
+ switch (pair.second->ht_context) {
+ case help_context_t::HC_SQL_FUNCTION:
+ case help_context_t::HC_SQL_TABLE_VALUED_FUNCTION: {
+ std::string poss = pair.first
+ + (pair.second->ht_parameters.empty() ? "()" : ("("));
+
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL, "*", poss);
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ }
+
+ walk_sqlite_metadata(lnav_data.ld_db.in(), lnav_sql_meta_callbacks);
+
+ for (const auto& iter : *lnav_data.ld_vtab_manager) {
+ iter.second->get_foreign_keys(db_key_names);
+ }
+
+ stable_sort(db_key_names.begin(), db_key_names.end());
+
+ return retval;
+}
+
+static bool
+append_default_files()
+{
+ bool retval = true;
+ auto cwd = ghc::filesystem::current_path();
+
+ for (const auto& path : DEFAULT_FILES) {
+ if (access(path.c_str(), R_OK) == 0) {
+ auto_mem<char> abspath;
+
+ auto full_path = cwd / path;
+ if ((abspath = realpath(full_path.c_str(), nullptr)) == nullptr) {
+ perror("Unable to resolve path");
+ } else {
+ lnav_data.ld_active_files.fc_file_names[abspath.in()];
+ }
+ } else if (lnav::filesystem::stat_file(path).isOk()) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("default syslog file is not readable -- ")
+ .append(lnav::roles::file(cwd))
+ .append(lnav::roles::file(path))));
+ retval = false;
+ }
+ }
+
+ return retval;
+}
+
+static void
+sigint(int sig)
+{
+ lnav_data.ld_looping = false;
+}
+
+static void
+sigwinch(int sig)
+{
+ lnav_data.ld_winched = true;
+}
+
+static void
+sigchld(int sig)
+{
+ lnav_data.ld_child_terminated = true;
+}
+
+static void
+handle_rl_key(int ch)
+{
+ switch (ch) {
+ case KEY_PPAGE:
+ case KEY_NPAGE:
+ case KEY_CTRL_P:
+ handle_paging_key(ch);
+ break;
+
+ case KEY_CTRL_RBRACKET:
+ lnav_data.ld_rl_view->abort();
+ break;
+
+ default:
+ lnav_data.ld_rl_view->handle_key(ch);
+ break;
+ }
+}
+
+readline_context::command_map_t lnav_commands;
+
+static attr_line_t
+command_arg_help()
+{
+ return attr_line_t()
+ .append(
+ "command arguments must start with one of the following symbols "
+ "to denote the type of command:\n")
+ .append(" ")
+ .append(":"_symbol)
+ .append(" - ")
+ .append("an lnav command (e.g. :goto 42)\n")
+ .append(" ")
+ .append(";"_symbol)
+ .append(" - ")
+ .append("an SQL statement (e.g. ;SELECT * FROM syslog_log)\n")
+ .append(" ")
+ .append("|"_symbol)
+ .append(" - ")
+ .append("an lnav script (e.g. |rename-stdin foo)\n");
+}
+
+static void
+usage()
+{
+ attr_line_t ex1_term;
+
+ ex1_term.append(lnav::roles::ok("$"))
+ .append(" ")
+ .append(lnav::roles::file("lnav"))
+ .pad_to(40)
+ .with_attr_for_all(VC_ROLE.value(role_t::VCR_QUOTED_CODE));
+
+ attr_line_t ex2_term;
+
+ ex2_term.append(lnav::roles::ok("$"))
+ .append(" ")
+ .append(lnav::roles::file("lnav"))
+ .append(" ")
+ .append(lnav::roles::file("/var/log"))
+ .pad_to(40)
+ .with_attr_for_all(VC_ROLE.value(role_t::VCR_QUOTED_CODE));
+
+ attr_line_t ex3_term;
+
+ ex3_term.append(lnav::roles::ok("$"))
+ .append(" ")
+ .append(lnav::roles::file("make"))
+ .append(" 2>&1 | ")
+ .append(lnav::roles::file("lnav"))
+ .append(" ")
+ .append("-t"_symbol)
+ .pad_to(40)
+ .with_attr_for_all(VC_ROLE.value(role_t::VCR_QUOTED_CODE));
+
+ attr_line_t usage_al;
+
+ usage_al.append("usage"_h1)
+ .append(": ")
+ .append(lnav::roles::file(lnav_data.ld_program_name))
+ .append(" [")
+ .append("options"_variable)
+ .append("] [")
+ .append("logfile1"_variable)
+ .append(" ")
+ .append("logfile2"_variable)
+ .append(" ")
+ .append("..."_variable)
+ .append("]\n")
+ .append(R"(
+A log file viewer for the terminal that indexes log messages to
+make it easier to navigate through files quickly.
+
+)")
+ .append("Key Bindings"_h2)
+ .append("\n")
+ .append(" ?"_symbol)
+ .append(" View/leave the online help text.\n")
+ .append(" q"_symbol)
+ .append(" Quit the program.\n")
+ .append("\n")
+ .append("Options"_h2)
+ .append("\n")
+ .append(" ")
+ .append("-h"_symbol)
+ .append(" ")
+ .append("Print this message, then exit.\n")
+ .append(" ")
+ .append("-H"_symbol)
+ .append(" ")
+ .append("Display the internal help text.\n")
+ .append("\n")
+ .append(" ")
+ .append("-I"_symbol)
+ .append(" ")
+ .append("dir"_variable)
+ .append(" ")
+ .append("An additional configuration directory.\n")
+ .append(" ")
+ .append("-W"_symbol)
+ .append(" ")
+ .append("Print warnings related to lnav's configuration.\n")
+ .append(" ")
+ .append("-u"_symbol)
+ .append(" ")
+ .append("Update formats installed from git repositories.\n")
+ .append(" ")
+ .append("-d"_symbol)
+ .append(" ")
+ .append("file"_variable)
+ .append(" ")
+ .append("Write debug messages to the given file.\n")
+ .append(" ")
+ .append("-V"_symbol)
+ .append(" ")
+ .append("Print version information.\n")
+ .append("\n")
+ .append(" ")
+ .append("-r"_symbol)
+ .append(" ")
+ .append(
+ "Recursively load files from the given directory hierarchies.\n")
+ .append(" ")
+ .append("-R"_symbol)
+ .append(" ")
+ .append("Load older rotated log files as well.\n")
+ .append(" ")
+ .append("-t"_symbol)
+ .append(" ")
+ .append(R"(Prepend timestamps to the lines of data being read in
+ from the standard input.
+)")
+ .append(" ")
+ .append("-w"_symbol)
+ .append(" ")
+ .append("file"_variable)
+ .append(" ")
+ .append("Write the contents of the standard input to this file.\n")
+ .append("\n")
+ .append(" ")
+ .append("-c"_symbol)
+ .append(" ")
+ .append("cmd"_variable)
+ .append(" ")
+ .append("Execute a command after the files have been loaded.\n")
+ .append(" ")
+ .append("-f"_symbol)
+ .append(" ")
+ .append("file"_variable)
+ .append(" ")
+ .append("Execute the commands in the given file.\n")
+ .append(" ")
+ .append("-n"_symbol)
+ .append(" ")
+ .append("Run without the curses UI. (headless mode)\n")
+ .append(" ")
+ .append("-N"_symbol)
+ .append(" ")
+ .append("Do not open the default syslog file if no files are given.\n")
+ .append(" ")
+ .append("-q"_symbol)
+ .append(" ")
+ .append(
+ R"(Do not print the log messages after executing all
+ of the commands.
+)")
+ .append("\n")
+ .append("Optional arguments"_h2)
+ .append("\n")
+ .append(" ")
+ .append("logfileN"_variable)
+ .append(R"( The log files, directories, or remote paths to view.
+ If a directory is given, all of the files in the
+ directory will be loaded.
+)")
+ .append("\n")
+ .append("Management-Mode Options"_h2)
+ .append("\n")
+ .append(" ")
+ .append("-i"_symbol)
+ .append(" ")
+ .append(R"(Install the given format files and exit. Pass 'extra'
+ to install the default set of third-party formats.
+)")
+ .append(" ")
+ .append("-m"_symbol)
+ .append(" ")
+ .append(R"(Switch to the management command-line mode. This mode
+ is used to work with lnav's configuration.
+)")
+ .append("\n")
+ .append("Examples"_h2)
+ .append("\n ")
+ .append("\u2022"_list_glyph)
+ .append(" To load and follow the syslog file:\n")
+ .append(" ")
+ .append(ex1_term)
+ .append("\n\n ")
+ .append("\u2022"_list_glyph)
+ .append(" To load all of the files in ")
+ .append(lnav::roles::file("/var/log"))
+ .append(":\n")
+ .append(" ")
+ .append(ex2_term)
+ .append("\n\n ")
+ .append("\u2022"_list_glyph)
+ .append(" To watch the output of ")
+ .append(lnav::roles::file("make"))
+ .append(" with timestamps prepended:\n")
+ .append(" ")
+ .append(ex3_term)
+ .append("\n\n")
+ .append("Paths"_h2)
+ .append("\n ")
+ .append("\u2022"_list_glyph)
+ .append(" Configuration, session, and format files are stored in:\n")
+ .append(" \U0001F4C2 ")
+ .append(lnav::roles::file(lnav::paths::dotlnav().string()))
+ .append("\n\n ")
+ .append("\u2022"_list_glyph)
+ .append(" Local copies of remote files and files extracted from\n")
+ .append(" archives are stored in:\n")
+ .append(" \U0001F4C2 ")
+ .append(lnav::roles::file(lnav::paths::workdir().string()))
+ .append("\n\n")
+ .append("Documentation"_h1)
+ .append(": https://docs.lnav.org\n")
+ .append("Contact"_h1)
+ .append("\n")
+ .append(" \U0001F4AC https://github.com/tstack/lnav/discussions\n")
+ .appendf(FMT_STRING(" \U0001F4EB {}\n"), PACKAGE_BUGREPORT)
+ .append("Version"_h1)
+ .appendf(FMT_STRING(": {}"), VCS_PACKAGE_STRING);
+
+ lnav::console::println(stderr, usage_al);
+}
+
+static void
+clear_last_user_mark(listview_curses* lv)
+{
+ textview_curses* tc = (textview_curses*) lv;
+ if (lnav_data.ld_select_start.find(tc) != lnav_data.ld_select_start.end()
+ && !tc->is_line_visible(vis_line_t(lnav_data.ld_last_user_mark[tc])))
+ {
+ lnav_data.ld_select_start.erase(tc);
+ lnav_data.ld_last_user_mark.erase(tc);
+ }
+}
+
+class lnav_behavior : public mouse_behavior {
+public:
+ void mouse_event(int button, bool release, int x, int y) override
+ {
+ textview_curses* tc = *(lnav_data.ld_view_stack.top());
+ struct mouse_event me;
+
+ switch (button & xterm_mouse::XT_BUTTON__MASK) {
+ case xterm_mouse::XT_BUTTON1:
+ me.me_button = mouse_button_t::BUTTON_LEFT;
+ break;
+ case xterm_mouse::XT_BUTTON2:
+ me.me_button = mouse_button_t::BUTTON_MIDDLE;
+ break;
+ case xterm_mouse::XT_BUTTON3:
+ me.me_button = mouse_button_t::BUTTON_RIGHT;
+ break;
+ case xterm_mouse::XT_SCROLL_UP:
+ me.me_button = mouse_button_t::BUTTON_SCROLL_UP;
+ break;
+ case xterm_mouse::XT_SCROLL_DOWN:
+ me.me_button = mouse_button_t::BUTTON_SCROLL_DOWN;
+ break;
+ }
+
+ if (button & xterm_mouse::XT_DRAG_FLAG) {
+ me.me_state = mouse_button_state_t::BUTTON_STATE_DRAGGED;
+ } else if (release) {
+ me.me_state = mouse_button_state_t::BUTTON_STATE_RELEASED;
+ } else {
+ me.me_state = mouse_button_state_t::BUTTON_STATE_PRESSED;
+ }
+
+ gettimeofday(&me.me_time, nullptr);
+ me.me_x = x - 1;
+ me.me_y = y - tc->get_y() - 1;
+
+ tc->handle_mouse(me);
+ }
+};
+
+static bool
+handle_config_ui_key(int ch)
+{
+ bool retval = false;
+
+ switch (lnav_data.ld_mode) {
+ case ln_mode_t::FILES:
+ retval = lnav_data.ld_files_view.handle_key(ch);
+ break;
+ case ln_mode_t::FILTER:
+ retval = lnav_data.ld_filter_view.handle_key(ch);
+ break;
+ default:
+ ensure(0);
+ }
+
+ if (retval) {
+ return retval;
+ }
+
+ nonstd::optional<ln_mode_t> new_mode;
+
+ lnav_data.ld_filter_help_status_source.fss_error.clear();
+ if (ch == 'F') {
+ new_mode = ln_mode_t::FILES;
+ } else if (ch == 'T') {
+ new_mode = ln_mode_t::FILTER;
+ } else if (ch == '\t' || ch == KEY_BTAB) {
+ if (lnav_data.ld_mode == ln_mode_t::FILES) {
+ new_mode = ln_mode_t::FILTER;
+ } else {
+ new_mode = ln_mode_t::FILES;
+ }
+ } else if (ch == 'q') {
+ new_mode = ln_mode_t::PAGING;
+ }
+
+ if (new_mode) {
+ if (new_mode.value() == ln_mode_t::FILES
+ || new_mode.value() == ln_mode_t::FILTER)
+ {
+ lnav_data.ld_last_config_mode = new_mode.value();
+ }
+ lnav_data.ld_mode = new_mode.value();
+ lnav_data.ld_files_view.reload_data();
+ lnav_data.ld_filter_view.reload_data();
+ lnav_data.ld_status[LNS_FILTER].set_needs_update();
+ } else {
+ return handle_paging_key(ch);
+ }
+
+ return true;
+}
+
+static bool
+handle_key(int ch)
+{
+ lnav_data.ld_input_state.push_back(ch);
+
+ switch (ch) {
+ case KEY_RESIZE:
+ break;
+ default: {
+ switch (lnav_data.ld_mode) {
+ case ln_mode_t::PAGING:
+ if (ch == KEY_ENTER || ch == '\n' || ch == '\r') {
+ breadcrumb_view.focus();
+ lnav_data.ld_mode = ln_mode_t::BREADCRUMBS;
+ return true;
+ }
+
+ return handle_paging_key(ch);
+
+ case ln_mode_t::BREADCRUMBS:
+ if (!breadcrumb_view.handle_key(ch)) {
+ lnav_data.ld_mode = ln_mode_t::PAGING;
+ lnav_data.ld_view_stack.set_needs_update();
+ return true;
+ }
+ return true;
+
+ case ln_mode_t::FILTER:
+ case ln_mode_t::FILES:
+ return handle_config_ui_key(ch);
+
+ case ln_mode_t::SPECTRO_DETAILS: {
+ if (ch == '\t' || ch == 'q') {
+ lnav_data.ld_mode = ln_mode_t::PAGING;
+ return true;
+ }
+ if (lnav_data.ld_spectro_details_view.handle_key(ch)) {
+ return true;
+ }
+ switch (ch) {
+ case 'n': {
+ execute_command(lnav_data.ld_exec_context,
+ "next-mark search");
+ return true;
+ }
+ case 'N': {
+ execute_command(lnav_data.ld_exec_context,
+ "prev-mark search");
+ return true;
+ }
+ case '/': {
+ execute_command(lnav_data.ld_exec_context,
+ "prompt search-spectro-details");
+ return true;
+ }
+ }
+ return false;
+ }
+
+ case ln_mode_t::COMMAND:
+ case ln_mode_t::SEARCH:
+ case ln_mode_t::SEARCH_FILTERS:
+ case ln_mode_t::SEARCH_FILES:
+ case ln_mode_t::SEARCH_SPECTRO_DETAILS:
+ case ln_mode_t::CAPTURE:
+ case ln_mode_t::SQL:
+ case ln_mode_t::EXEC:
+ case ln_mode_t::USER:
+ handle_rl_key(ch);
+ break;
+
+ case ln_mode_t::BUSY:
+ switch (ch) {
+ case KEY_CTRL_RBRACKET:
+ log_vtab_data.lvd_looping = false;
+ break;
+ }
+ break;
+
+ default:
+ require(0);
+ break;
+ }
+ }
+ }
+
+ return true;
+}
+
+static input_dispatcher::escape_match_t
+match_escape_seq(const char* keyseq)
+{
+ if (lnav_data.ld_mode != ln_mode_t::PAGING) {
+ return input_dispatcher::escape_match_t::NONE;
+ }
+
+ auto& km = lnav_config.lc_active_keymap;
+ auto iter = km.km_seq_to_cmd.find(keyseq);
+ if (iter != km.km_seq_to_cmd.end()) {
+ return input_dispatcher::escape_match_t::FULL;
+ }
+
+ auto lb = km.km_seq_to_cmd.lower_bound(keyseq);
+ if (lb == km.km_seq_to_cmd.end()) {
+ return input_dispatcher::escape_match_t::NONE;
+ }
+
+ auto ub = km.km_seq_to_cmd.upper_bound(keyseq);
+ auto longest = max_element(
+ lb, ub, [](auto l, auto r) { return l.first.size() < r.first.size(); });
+
+ if (strlen(keyseq) < longest->first.size()) {
+ return input_dispatcher::escape_match_t::PARTIAL;
+ }
+
+ return input_dispatcher::escape_match_t::NONE;
+}
+
+static void
+gather_pipers()
+{
+ for (auto iter = lnav_data.ld_pipers.begin();
+ iter != lnav_data.ld_pipers.end();)
+ {
+ pid_t child_pid = (*iter)->get_child_pid();
+ if ((*iter)->has_exited()) {
+ log_info("child piper has exited -- %d", child_pid);
+ iter = lnav_data.ld_pipers.erase(iter);
+ } else {
+ ++iter;
+ }
+ }
+
+ for (auto iter = lnav_data.ld_child_pollers.begin();
+ iter != lnav_data.ld_child_pollers.end();)
+ {
+ if (iter->poll(lnav_data.ld_active_files)
+ == child_poll_result_t::FINISHED)
+ {
+ iter = lnav_data.ld_child_pollers.erase(iter);
+ } else {
+ ++iter;
+ }
+ }
+}
+
+static void
+wait_for_pipers()
+{
+ for (;;) {
+ gather_pipers();
+ if (lnav_data.ld_pipers.empty() && lnav_data.ld_child_pollers.empty()) {
+ log_debug("all pipers finished");
+ break;
+ }
+ usleep(10000);
+ rebuild_indexes();
+
+ log_debug("%d pipers and %d children still active",
+ lnav_data.ld_pipers.size(),
+ lnav_data.ld_child_pollers.size());
+ }
+}
+
+struct refresh_status_bars {
+ refresh_status_bars(std::shared_ptr<top_status_source> top_source)
+ : rsb_top_source(std::move(top_source))
+ {
+ }
+
+ using injectable
+ = refresh_status_bars(std::shared_ptr<top_status_source> top_source);
+
+ void doit() const
+ {
+ struct timeval current_time {};
+ int ch;
+
+ gettimeofday(&current_time, nullptr);
+ while ((ch = getch()) != ERR) {
+ lnav_data.ld_user_message_source.clear();
+
+ alerter::singleton().new_input(ch);
+
+ lnav_data.ld_input_dispatcher.new_input(current_time, ch);
+
+ lnav_data.ld_view_stack.top() | [ch](auto tc) {
+ lnav_data.ld_key_repeat_history.update(ch, tc->get_top());
+ };
+
+ if (!lnav_data.ld_looping) {
+ // No reason to keep processing input after the
+ // user has quit. The view stack will also be
+ // empty, which will cause issues.
+ break;
+ }
+ }
+
+ this->rsb_top_source->update_time(current_time);
+ for (auto& sc : lnav_data.ld_status) {
+ sc.do_update();
+ }
+ lnav_data.ld_rl_view->do_update();
+ if (handle_winch()) {
+ layout_views();
+ lnav_data.ld_view_stack.do_update();
+ }
+ refresh();
+ }
+
+ std::shared_ptr<top_status_source> rsb_top_source;
+};
+
+static void
+looper()
+{
+ static auto* ps = injector::get<pollable_supervisor*>();
+ static auto* filter_source = injector::get<filter_sub_source*>();
+
+ try {
+ auto* sql_cmd_map = injector::get<readline_context::command_map_t*,
+ sql_cmd_map_tag>();
+ auto& ec = lnav_data.ld_exec_context;
+
+ readline_context command_context("cmd", &lnav_commands);
+
+ readline_context search_context("search", nullptr, false);
+ readline_context search_filters_context(
+ "search-filters", nullptr, false);
+ readline_context search_files_context("search-files", nullptr, false);
+ readline_context search_spectro_details_context(
+ "search-spectro-details", nullptr, false);
+ readline_context index_context("capture");
+ readline_context sql_context("sql", sql_cmd_map, false);
+ readline_context exec_context("exec");
+ readline_context user_context("user");
+ auto rlc = injector::get<std::shared_ptr<readline_curses>>();
+ sig_atomic_t overlay_counter = 0;
+ int lpc;
+
+ command_context.set_highlighter(readline_command_highlighter);
+ search_context.set_append_character(0).set_highlighter(
+ readline_regex_highlighter);
+ search_filters_context.set_append_character(0).set_highlighter(
+ readline_regex_highlighter);
+ search_files_context.set_append_character(0).set_highlighter(
+ readline_regex_highlighter);
+ search_spectro_details_context.set_append_character(0).set_highlighter(
+ readline_regex_highlighter);
+ sql_context.set_highlighter(readline_sqlite_highlighter)
+ .set_quote_chars("\"")
+ .with_readline_var((char**) &rl_completer_word_break_characters,
+ " \t\n(),");
+ exec_context.set_highlighter(readline_shlex_highlighter);
+
+ lnav_data.ld_log_source.lss_sorting_observer
+ = [](auto& lss, auto off, auto size) {
+ if (off == size) {
+ lnav_data.ld_bottom_source.update_loading(0, 0);
+ } else {
+ lnav_data.ld_bottom_source.update_loading(off, size);
+ }
+ do_observer_update(nullptr);
+ };
+
+ auto& sb = lnav_data.ld_scroll_broadcaster;
+ auto& vsb = lnav_data.ld_view_stack_broadcaster;
+
+ rlc->add_context(ln_mode_t::COMMAND, command_context);
+ rlc->add_context(ln_mode_t::SEARCH, search_context);
+ rlc->add_context(ln_mode_t::SEARCH_FILTERS, search_filters_context);
+ rlc->add_context(ln_mode_t::SEARCH_FILES, search_files_context);
+ rlc->add_context(ln_mode_t::SEARCH_SPECTRO_DETAILS,
+ search_spectro_details_context);
+ rlc->add_context(ln_mode_t::CAPTURE, index_context);
+ rlc->add_context(ln_mode_t::SQL, sql_context);
+ rlc->add_context(ln_mode_t::EXEC, exec_context);
+ rlc->add_context(ln_mode_t::USER, user_context);
+ rlc->set_save_history(!(lnav_data.ld_flags & LNF_SECURE_MODE));
+ rlc->start();
+
+ filter_source->fss_editor->start();
+
+ lnav_data.ld_rl_view = rlc.get();
+
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::COMMAND, "viewname", lnav_view_strings);
+
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::COMMAND, "zoomlevel", lnav_zoom_strings);
+
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::COMMAND, "levelname", level_names);
+
+ auto echo_views_stmt_res = prepare_stmt(lnav_data.ld_db,
+#if SQLITE_VERSION_NUMBER < 3033000
+ R"(
+ UPDATE lnav_views_echo
+ SET top = (SELECT top FROM lnav_views WHERE lnav_views.name = lnav_views_echo.name),
+ left = (SELECT left FROM lnav_views WHERE lnav_views.name = lnav_views_echo.name),
+ height = (SELECT height FROM lnav_views WHERE lnav_views.name = lnav_views_echo.name),
+ inner_height = (SELECT inner_height FROM lnav_views WHERE lnav_views.name = lnav_views_echo.name),
+ top_time = (SELECT top_time FROM lnav_views WHERE lnav_views.name = lnav_views_echo.name),
+ search = (SELECT search FROM lnav_views WHERE lnav_views.name = lnav_views_echo.name)
+ WHERE EXISTS (SELECT * FROM lnav_views WHERE name = lnav_views_echo.name AND
+ (
+ lnav_views.top != lnav_views_echo.top OR
+ lnav_views.left != lnav_views_echo.left OR
+ lnav_views.height != lnav_views_echo.height OR
+ lnav_views.inner_height != lnav_views_echo.inner_height OR
+ lnav_views.top_time != lnav_views_echo.top_time OR
+ lnav_views.search != lnav_views_echo.search
+ ))
+ )"
+#else
+ R"(
+ UPDATE lnav_views_echo
+ SET top = orig.top,
+ left = orig.left,
+ height = orig.height,
+ inner_height = orig.inner_height,
+ top_time = orig.top_time,
+ search = orig.search
+ FROM (SELECT * FROM lnav_views) AS orig
+ WHERE orig.name = lnav_views_echo.name AND
+ (
+ orig.top != lnav_views_echo.top OR
+ orig.left != lnav_views_echo.left OR
+ orig.height != lnav_views_echo.height OR
+ orig.inner_height != lnav_views_echo.inner_height OR
+ orig.top_time != lnav_views_echo.top_time OR
+ orig.search != lnav_views_echo.search
+ )
+ )"
+#endif
+ );
+
+ if (echo_views_stmt_res.isErr()) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ "unable to prepare UPDATE statement for lnav_views_echo "
+ "table")
+ .with_reason(echo_views_stmt_res.unwrapErr()));
+ return;
+ }
+ auto echo_views_stmt = echo_views_stmt_res.unwrap();
+
+ (void) signal(SIGINT, sigint);
+ (void) signal(SIGTERM, sigint);
+ (void) signal(SIGWINCH, sigwinch);
+ (void) signal(SIGCHLD, sigchld);
+
+ auto create_screen_res = screen_curses::create();
+
+ if (create_screen_res.isErr()) {
+ log_error("create screen failed with: %s",
+ create_screen_res.unwrapErr().c_str());
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error("unable to open TUI")
+ .with_reason(create_screen_res.unwrapErr()));
+ return;
+ }
+
+ auto sc = create_screen_res.unwrap();
+
+ auto_fd errpipe[2];
+ auto_fd::pipe(errpipe);
+
+ dup2(errpipe[1], STDERR_FILENO);
+ errpipe[1].reset();
+ log_pipe_err(errpipe[0]);
+ lnav_behavior lb;
+
+ ui_periodic_timer::singleton();
+
+ auto mouse_i = injector::get<xterm_mouse&>();
+
+ mouse_i.set_behavior(&lb);
+ mouse_i.set_enabled(check_experimental("mouse"));
+
+ lnav_data.ld_window = sc.get_window();
+ keypad(stdscr, TRUE);
+ (void) nonl();
+ (void) cbreak();
+ (void) noecho();
+ (void) nodelay(lnav_data.ld_window, 1);
+
+#ifdef VDSUSP
+ {
+ struct termios tio;
+
+ tcgetattr(STDIN_FILENO, &tio);
+ tio.c_cc[VDSUSP] = 0;
+ tcsetattr(STDIN_FILENO, TCSANOW, &tio);
+ }
+#endif
+
+ define_key("\033Od", KEY_BEG);
+ define_key("\033Oc", KEY_END);
+
+ view_colors& vc = view_colors::singleton();
+ view_colors::init(false);
+
+ auto ecb_guard
+ = lnav_data.ld_exec_context.add_error_callback([](const auto& um) {
+ auto al = um.to_attr_line().rtrim();
+
+ if (al.get_string().find('\n') == std::string::npos) {
+ if (lnav_data.ld_rl_view) {
+ lnav_data.ld_rl_view->set_attr_value(al);
+ }
+ } else {
+ lnav_data.ld_user_message_source.replace_with(al);
+ lnav_data.ld_user_message_view.reload_data();
+ lnav_data.ld_user_message_expiration
+ = std::chrono::steady_clock::now() + 20s;
+ }
+ });
+
+ {
+ setup_highlights(lnav_data.ld_views[LNV_LOG].get_highlights());
+ setup_highlights(lnav_data.ld_views[LNV_TEXT].get_highlights());
+ setup_highlights(lnav_data.ld_views[LNV_SCHEMA].get_highlights());
+ setup_highlights(lnav_data.ld_views[LNV_PRETTY].get_highlights());
+ setup_highlights(lnav_data.ld_preview_view.get_highlights());
+
+ for (const auto& format : log_format::get_root_formats()) {
+ for (auto& hl : format->lf_highlighters) {
+ if (hl.h_fg.empty() && hl.h_bg.empty()
+ && hl.h_attrs.empty())
+ {
+ hl.with_attrs(hl.h_attrs
+ | vc.attrs_for_ident(hl.h_name));
+ }
+
+ lnav_data.ld_views[LNV_LOG].get_highlights()[{
+ highlight_source_t::CONFIGURATION,
+ format->get_name().to_string() + "-" + hl.h_name}]
+ = hl;
+ }
+ }
+ }
+
+ execute_examples();
+
+ rlc->set_window(lnav_data.ld_window);
+ rlc->set_y(-1);
+ rlc->set_focus_action(rl_focus);
+ rlc->set_change_action(rl_change);
+ rlc->set_perform_action(rl_callback);
+ rlc->set_alt_perform_action(rl_alt_callback);
+ rlc->set_timeout_action(rl_search);
+ rlc->set_abort_action(lnav_rl_abort);
+ rlc->set_display_match_action(rl_display_matches);
+ rlc->set_display_next_action(rl_display_next);
+ rlc->set_blur_action(rl_blur);
+ rlc->set_completion_request_action(rl_completion_request);
+ rlc->set_alt_value(
+ HELP_MSG_2(e,
+ E,
+ "to move forward/backward through " ANSI_COLOR(
+ COLOR_RED) "error" ANSI_NORM " messages"));
+
+ (void) curs_set(0);
+
+ lnav_data.ld_view_stack.push_back(&lnav_data.ld_views[LNV_LOG]);
+
+ sb.push_back(clear_last_user_mark);
+ sb.push_back(bind_mem(&bottom_status_source::update_line_number,
+ &lnav_data.ld_bottom_source));
+ sb.push_back(bind_mem(&bottom_status_source::update_percent,
+ &lnav_data.ld_bottom_source));
+ sb.push_back(bind_mem(&bottom_status_source::update_marks,
+ &lnav_data.ld_bottom_source));
+ vsb.push_back(
+ bind_mem(&term_extra::update_title, injector::get<term_extra*>()));
+ vsb.push_back([](listview_curses* lv) {
+ auto* tc = dynamic_cast<textview_curses*>(lv);
+
+ tc->tc_state_event_handler(*tc);
+ });
+
+ vsb.push_back(sb);
+
+ breadcrumb_view.set_y(1);
+ breadcrumb_view.set_window(lnav_data.ld_window);
+ breadcrumb_view.set_line_source(lnav_crumb_source);
+ auto event_handler = [](auto&& tc) {
+ auto top_view = lnav_data.ld_view_stack.top();
+
+ if (top_view && *top_view == &tc) {
+ lnav_data.ld_bottom_source.update_search_term(tc);
+ }
+ };
+ for (lpc = 0; lpc < LNV__MAX; lpc++) {
+ lnav_data.ld_views[lpc].set_window(lnav_data.ld_window);
+ lnav_data.ld_views[lpc].set_y(2);
+ lnav_data.ld_views[lpc].set_height(
+ vis_line_t(-(rlc->get_height() + 3)));
+ lnav_data.ld_views[lpc].set_scroll_action(sb);
+ lnav_data.ld_views[lpc].set_search_action(update_hits);
+ lnav_data.ld_views[lpc].tc_state_event_handler = event_handler;
+ }
+
+ lnav_data.ld_doc_view.set_window(lnav_data.ld_window);
+ lnav_data.ld_doc_view.set_show_scrollbar(false);
+
+ lnav_data.ld_example_view.set_window(lnav_data.ld_window);
+ lnav_data.ld_example_view.set_show_scrollbar(false);
+
+ lnav_data.ld_match_view.set_window(lnav_data.ld_window);
+
+ lnav_data.ld_preview_view.set_window(lnav_data.ld_window);
+ lnav_data.ld_preview_view.set_show_scrollbar(false);
+
+ lnav_data.ld_filter_view.set_selectable(true);
+ lnav_data.ld_filter_view.set_window(lnav_data.ld_window);
+ lnav_data.ld_filter_view.set_show_scrollbar(true);
+
+ lnav_data.ld_files_view.set_selectable(true);
+ lnav_data.ld_files_view.set_window(lnav_data.ld_window);
+ lnav_data.ld_files_view.set_show_scrollbar(true);
+ lnav_data.ld_files_view.get_disabled_highlights().insert(
+ highlight_source_t::THEME);
+ lnav_data.ld_files_view.set_overlay_source(&lnav_data.ld_files_overlay);
+
+ lnav_data.ld_user_message_view.set_window(lnav_data.ld_window);
+
+ lnav_data.ld_spectro_details_view.set_window(lnav_data.ld_window);
+ lnav_data.ld_spectro_details_view.set_show_scrollbar(true);
+ lnav_data.ld_spectro_details_view.set_height(5_vl);
+ lnav_data.ld_spectro_details_view.set_sub_source(
+ &lnav_data.ld_spectro_no_details_source);
+ lnav_data.ld_spectro_details_view.tc_state_event_handler
+ = event_handler;
+ lnav_data.ld_spectro_details_view.set_scroll_action(sb);
+ lnav_data.ld_spectro_no_details_source.replace_with(
+ attr_line_t().append(
+ lnav::roles::comment(" No details available")));
+ lnav_data.ld_spectro_source->ss_details_view
+ = &lnav_data.ld_spectro_details_view;
+ lnav_data.ld_spectro_source->ss_no_details_source
+ = &lnav_data.ld_spectro_no_details_source;
+ lnav_data.ld_spectro_source->ss_exec_context
+ = &lnav_data.ld_exec_context;
+
+ auto top_status_lifetime
+ = injector::bind<top_status_source>::to_scoped_singleton();
+
+ auto top_source = injector::get<std::shared_ptr<top_status_source>>();
+
+ lnav_data.ld_status[LNS_TOP].set_top(0);
+ lnav_data.ld_status[LNS_TOP].set_default_role(
+ role_t::VCR_INACTIVE_STATUS);
+ lnav_data.ld_status[LNS_TOP].set_data_source(top_source.get());
+ lnav_data.ld_status[LNS_BOTTOM].set_top(-(rlc->get_height() + 1));
+ for (auto& stat_bar : lnav_data.ld_status) {
+ stat_bar.set_window(lnav_data.ld_window);
+ }
+ lnav_data.ld_status[LNS_BOTTOM].set_data_source(
+ &lnav_data.ld_bottom_source);
+ lnav_data.ld_status[LNS_FILTER].set_data_source(
+ &lnav_data.ld_filter_status_source);
+ lnav_data.ld_status[LNS_FILTER_HELP].set_data_source(
+ &lnav_data.ld_filter_help_status_source);
+ lnav_data.ld_status[LNS_DOC].set_data_source(
+ &lnav_data.ld_doc_status_source);
+ lnav_data.ld_status[LNS_PREVIEW].set_data_source(
+ &lnav_data.ld_preview_status_source);
+ lnav_data.ld_spectro_status_source
+ = std::make_unique<spectro_status_source>();
+ lnav_data.ld_status[LNS_SPECTRO].set_data_source(
+ lnav_data.ld_spectro_status_source.get());
+
+ lnav_data.ld_match_view.set_show_bottom_border(true);
+ lnav_data.ld_user_message_view.set_show_bottom_border(true);
+
+ for (auto& sc : lnav_data.ld_status) {
+ sc.window_change();
+ }
+
+ auto session_path = lnav::paths::dotlnav() / "session";
+ execute_file(ec, session_path.string());
+
+ sb(*lnav_data.ld_view_stack.top());
+ vsb(*lnav_data.ld_view_stack.top());
+
+ lnav_data.ld_view_stack.vs_change_handler = [](textview_curses* tc) {
+ lnav_data.ld_view_stack_broadcaster(tc);
+ };
+
+ {
+ auto& id = lnav_data.ld_input_dispatcher;
+
+ id.id_escape_matcher = match_escape_seq;
+ id.id_escape_handler = handle_keyseq;
+ id.id_key_handler = handle_key;
+ id.id_mouse_handler
+ = std::bind(&xterm_mouse::handle_mouse, &mouse_i);
+ id.id_unhandled_handler = [](const char* keyseq) {
+ auto enc_len = lnav_config.lc_ui_keymap.size() * 2;
+ auto encoded_name = (char*) alloca(enc_len);
+
+ log_info("unbound keyseq: %s", keyseq);
+ json_ptr::encode(
+ encoded_name, enc_len, lnav_config.lc_ui_keymap.c_str());
+ // XXX we should have a hotkey for opening a prompt that is
+ // pre-filled with a suggestion that the user can complete.
+ // This quick-fix key could be used for other stuff as well
+ lnav_data.ld_rl_view->set_value(fmt::format(
+ ANSI_CSI ANSI_COLOR_PARAM(
+ COLOR_YELLOW) ";" ANSI_BOLD_PARAM ANSI_CHAR_ATTR
+ "Unrecognized key" ANSI_NORM
+ ", bind to a command using "
+ "\u2014 " ANSI_BOLD(
+ ":config") " /ui/keymap-defs/{}/{}/"
+ "command <cmd>",
+ encoded_name,
+ keyseq));
+ alerter::singleton().chime("unrecognized key");
+ };
+ }
+
+ auto refresher_lifetime
+ = injector::bind<refresh_status_bars>::to_scoped_singleton();
+
+ auto refresher = injector::get<std::shared_ptr<refresh_status_bars>>();
+
+ auto refresh_guard = lnav_data.ld_status_refresher.install(
+ [refresher]() { refresher->doit(); });
+
+ auto& timer = ui_periodic_timer::singleton();
+ struct timeval current_time;
+
+ static sig_atomic_t index_counter;
+
+ lnav_data.ld_mode = ln_mode_t::FILES;
+
+ timer.start_fade(index_counter, 1);
+
+ file_collection active_copy;
+ log_debug("rescan started %p", &active_copy);
+ active_copy.merge(lnav_data.ld_active_files);
+ active_copy.fc_progress = lnav_data.ld_active_files.fc_progress;
+ std::future<file_collection> rescan_future
+ = std::async(std::launch::async,
+ &file_collection::rescan_files,
+ std::move(active_copy),
+ false);
+ bool initial_rescan_completed = false;
+ int session_stage = 0;
+
+ // rlc.do_update();
+
+ auto next_rebuild_time = ui_clock::now();
+ auto next_status_update_time = next_rebuild_time;
+ auto next_rescan_time = next_rebuild_time;
+
+ while (lnav_data.ld_looping) {
+ auto loop_deadline
+ = ui_clock::now() + (session_stage == 0 ? 3s : 50ms);
+
+ std::vector<struct pollfd> pollfds;
+ size_t starting_view_stack_size = lnav_data.ld_view_stack.size();
+ size_t changes = 0;
+ int rc;
+
+ gettimeofday(&current_time, nullptr);
+
+ top_source->update_time(current_time);
+ lnav_data.ld_preview_view.set_needs_update();
+
+ layout_views();
+
+ auto scan_timeout = initial_rescan_completed ? 0s : 10ms;
+ if (rescan_future.valid()
+ && rescan_future.wait_for(scan_timeout)
+ == std::future_status::ready)
+ {
+ auto new_files = rescan_future.get();
+ if (!initial_rescan_completed && new_files.fc_file_names.empty()
+ && new_files.fc_files.empty()
+ && lnav_data.ld_active_files.fc_progress->readAccess()
+ ->sp_tailers.empty())
+ {
+ initial_rescan_completed = true;
+
+ log_debug("initial rescan rebuild");
+ changes += rebuild_indexes(loop_deadline);
+ load_session();
+ if (session_data.sd_save_time) {
+ std::string ago;
+
+ ago = humanize::time::point::from_tv(
+ {(time_t) session_data.sd_save_time, 0})
+ .as_time_ago();
+ auto um = lnav::console::user_message::ok(
+ attr_line_t("restored session from ")
+ .append(lnav::roles::number(ago))
+ .append("; press ")
+ .append("CTRL-R"_hotkey)
+ .append(" to reset session"));
+ lnav_data.ld_rl_view->set_attr_value(um.to_attr_line());
+ }
+
+ lnav_data.ld_session_loaded = true;
+ session_stage += 1;
+ loop_deadline = ui_clock::now();
+ log_debug("file count %d",
+ lnav_data.ld_active_files.fc_files.size())
+ }
+ update_active_files(new_files);
+ if (!initial_rescan_completed) {
+ auto& fview = lnav_data.ld_files_view;
+ auto height = fview.get_inner_height();
+
+ if (height > 0_vl) {
+ fview.set_selection(height - 1_vl);
+ }
+ }
+
+ active_copy.clear();
+ rescan_future = std::future<file_collection>{};
+ next_rescan_time = ui_clock::now() + 333ms;
+ }
+
+ if (!rescan_future.valid()
+ && (session_stage < 2 || ui_clock::now() >= next_rescan_time))
+ {
+ active_copy.clear();
+ active_copy.merge(lnav_data.ld_active_files);
+ active_copy.fc_progress = lnav_data.ld_active_files.fc_progress;
+ rescan_future = std::async(std::launch::async,
+ &file_collection::rescan_files,
+ std::move(active_copy),
+ false);
+ }
+
+ {
+ auto& mlooper = injector::get<main_looper&, services::main_t>();
+
+ mlooper.get_port().process_for(0s);
+ }
+
+ auto ui_now = ui_clock::now();
+ if (initial_rescan_completed) {
+ if (ui_now >= next_rebuild_time) {
+ auto text_file_count = lnav_data.ld_text_source.size();
+ changes += rebuild_indexes(loop_deadline);
+ if (!changes && ui_clock::now() < loop_deadline) {
+ next_rebuild_time = ui_clock::now() + 333ms;
+ }
+ if (changes && text_file_count
+ && lnav_data.ld_text_source.empty()
+ && lnav_data.ld_view_stack.top().value_or(nullptr)
+ == &lnav_data.ld_views[LNV_TEXT])
+ {
+ do {
+ lnav_data.ld_view_stack.pop_back();
+ } while (lnav_data.ld_view_stack.top().value_or(nullptr)
+ != &lnav_data.ld_views[LNV_LOG]);
+ }
+ }
+ } else {
+ lnav_data.ld_files_view.set_overlay_needs_update();
+ }
+
+ if (lnav_data.ld_mode == ln_mode_t::BREADCRUMBS
+ && breadcrumb_view.get_needs_update())
+ {
+ lnav_data.ld_view_stack.set_needs_update();
+ }
+ lnav_data.ld_view_stack.do_update();
+ lnav_data.ld_doc_view.do_update();
+ lnav_data.ld_example_view.do_update();
+ lnav_data.ld_match_view.do_update();
+ lnav_data.ld_preview_view.do_update();
+ lnav_data.ld_spectro_details_view.do_update();
+ lnav_data.ld_user_message_view.do_update();
+ if (ui_clock::now() >= next_status_update_time) {
+ echo_views_stmt.execute();
+ top_source->update_user_msg();
+ for (auto& sc : lnav_data.ld_status) {
+ sc.do_update();
+ }
+ next_status_update_time = ui_clock::now() + 100ms;
+ }
+ if (filter_source->fss_editing) {
+ filter_source->fss_match_view.set_needs_update();
+ }
+ breadcrumb_view.do_update();
+ // These updates need to be done last so their readline views can
+ // put the cursor in the right place.
+ switch (lnav_data.ld_mode) {
+ case ln_mode_t::FILTER:
+ case ln_mode_t::SEARCH_FILTERS:
+ lnav_data.ld_filter_view.set_needs_update();
+ lnav_data.ld_filter_view.do_update();
+ break;
+ case ln_mode_t::SEARCH_FILES:
+ case ln_mode_t::FILES:
+ lnav_data.ld_files_view.set_needs_update();
+ lnav_data.ld_files_view.do_update();
+ break;
+ default:
+ break;
+ }
+ if (lnav_data.ld_mode != ln_mode_t::FILTER
+ && lnav_data.ld_mode != ln_mode_t::FILES)
+ {
+ rlc->do_update();
+ }
+ refresh();
+
+ if (lnav_data.ld_session_loaded) {
+ // Only take input from the user after everything has loaded.
+ pollfds.push_back((struct pollfd){STDIN_FILENO, POLLIN, 0});
+ if (lnav_data.ld_initial_build) {
+ switch (lnav_data.ld_mode) {
+ case ln_mode_t::COMMAND:
+ case ln_mode_t::SEARCH:
+ case ln_mode_t::SEARCH_FILTERS:
+ case ln_mode_t::SEARCH_FILES:
+ case ln_mode_t::SEARCH_SPECTRO_DETAILS:
+ case ln_mode_t::SQL:
+ case ln_mode_t::EXEC:
+ case ln_mode_t::USER:
+ if (rlc->consume_ready_for_input()) {
+ // log_debug("waiting for readline input")
+ view_curses::awaiting_user_input();
+ }
+ break;
+ default:
+ // log_debug("waiting for paging input");
+ view_curses::awaiting_user_input();
+ break;
+ }
+ }
+ }
+
+ ps->update_poll_set(pollfds);
+ ui_now = ui_clock::now();
+ auto poll_to
+ = (!changes && ui_now < loop_deadline && session_stage >= 1)
+ ? std::chrono::duration_cast<std::chrono::milliseconds>(
+ loop_deadline - ui_now)
+ : 0ms;
+
+ if (initial_rescan_completed
+ && lnav_data.ld_input_dispatcher.in_escape() && poll_to > 15ms)
+ {
+ poll_to = 15ms;
+ }
+ // log_debug("poll %d %d", changes, poll_to.count());
+ rc = poll(&pollfds[0], pollfds.size(), poll_to.count());
+
+ gettimeofday(&current_time, nullptr);
+ lnav_data.ld_input_dispatcher.poll(current_time);
+
+ if (rc < 0) {
+ switch (errno) {
+ case 0:
+ case EINTR:
+ break;
+
+ default:
+ log_error("select %s", strerror(errno));
+ lnav_data.ld_looping = false;
+ break;
+ }
+ } else {
+ auto in_revents = pollfd_revents(pollfds, STDIN_FILENO);
+
+ if (in_revents & (POLLHUP | POLLNVAL)) {
+ log_info("stdin has been closed, exiting...");
+ lnav_data.ld_looping = false;
+ } else if (in_revents & POLLIN) {
+ int ch;
+
+ auto old_gen
+ = lnav_data.ld_active_files.fc_files_generation;
+ while ((ch = getch()) != ERR) {
+ lnav_data.ld_user_message_source.clear();
+
+ alerter::singleton().new_input(ch);
+
+ lnav_data.ld_input_dispatcher.new_input(current_time,
+ ch);
+
+ lnav_data.ld_view_stack.top() | [ch](auto tc) {
+ lnav_data.ld_key_repeat_history.update(
+ ch, tc->get_top());
+ };
+
+ if (!lnav_data.ld_looping) {
+ // No reason to keep processing input after the
+ // user has quit. The view stack will also be
+ // empty, which will cause issues.
+ break;
+ }
+ }
+
+ next_status_update_time = ui_clock::now();
+ switch (lnav_data.ld_mode) {
+ case ln_mode_t::PAGING:
+ case ln_mode_t::FILTER:
+ case ln_mode_t::FILES:
+ case ln_mode_t::SPECTRO_DETAILS:
+ case ln_mode_t::BUSY:
+ if (old_gen
+ == lnav_data.ld_active_files
+ .fc_files_generation)
+ {
+ next_rescan_time = next_status_update_time + 1s;
+ } else {
+ next_rescan_time = next_status_update_time;
+ }
+ break;
+ case ln_mode_t::BREADCRUMBS:
+ case ln_mode_t::COMMAND:
+ case ln_mode_t::SEARCH:
+ case ln_mode_t::SEARCH_FILTERS:
+ case ln_mode_t::SEARCH_FILES:
+ case ln_mode_t::SEARCH_SPECTRO_DETAILS:
+ case ln_mode_t::CAPTURE:
+ case ln_mode_t::SQL:
+ case ln_mode_t::EXEC:
+ case ln_mode_t::USER:
+ next_rescan_time = next_status_update_time + 1min;
+ break;
+ }
+ next_rebuild_time = next_rescan_time;
+ }
+
+ auto old_mode = lnav_data.ld_mode;
+ auto old_file_names_size
+ = lnav_data.ld_active_files.fc_file_names.size();
+
+ ps->check_poll_set(pollfds);
+ lnav_data.ld_view_stack.top() |
+ [](auto tc) { lnav_data.ld_bottom_source.update_hits(tc); };
+
+ if (lnav_data.ld_mode != old_mode) {
+ switch (lnav_data.ld_mode) {
+ case ln_mode_t::PAGING:
+ case ln_mode_t::FILTER:
+ case ln_mode_t::FILES:
+ next_rescan_time = next_status_update_time + 1s;
+ next_rebuild_time = next_rescan_time;
+ break;
+ default:
+ break;
+ }
+ }
+ if (old_file_names_size
+ != lnav_data.ld_active_files.fc_file_names.size())
+ {
+ next_rescan_time = ui_clock::now();
+ next_rebuild_time = next_rescan_time;
+ next_status_update_time = next_rescan_time;
+ }
+ }
+
+ if (timer.time_to_update(overlay_counter)) {
+ lnav_data.ld_view_stack.top() |
+ [](auto tc) { tc->set_overlay_needs_update(); };
+ }
+
+ if (initial_rescan_completed && session_stage < 2
+ && (!lnav_data.ld_initial_build
+ || timer.fade_diff(index_counter) == 0))
+ {
+ if (lnav_data.ld_mode == ln_mode_t::PAGING) {
+ timer.start_fade(index_counter, 1);
+ } else {
+ timer.start_fade(index_counter, 3);
+ }
+ // log_debug("initial build rebuild");
+ changes += rebuild_indexes(loop_deadline);
+ if (!lnav_data.ld_initial_build
+ && lnav_data.ld_log_source.text_line_count() == 0
+ && lnav_data.ld_text_source.text_line_count() > 0)
+ {
+ ensure_view(&lnav_data.ld_views[LNV_TEXT]);
+ lnav_data.ld_rl_view->set_alt_value(HELP_MSG_2(
+ f, F, "to switch to the next/previous file"));
+ }
+ if (lnav_data.ld_view_stack.top().value_or(nullptr)
+ == &lnav_data.ld_views[LNV_TEXT]
+ && lnav_data.ld_text_source.empty()
+ && lnav_data.ld_log_source.text_line_count() > 0)
+ {
+ textview_curses* tc_log = &lnav_data.ld_views[LNV_LOG];
+ lnav_data.ld_view_stack.pop_back();
+
+ lnav_data.ld_views[LNV_LOG].set_top(
+ tc_log->get_top_for_last_row());
+ }
+ if (!lnav_data.ld_initial_build
+ && lnav_data.ld_log_source.text_line_count() == 0
+ && !lnav_data.ld_active_files.fc_other_files.empty()
+ && std::any_of(
+ lnav_data.ld_active_files.fc_other_files.begin(),
+ lnav_data.ld_active_files.fc_other_files.end(),
+ [](const auto& pair) {
+ return pair.second.ofd_format
+ == file_format_t::SQLITE_DB;
+ }))
+ {
+ ensure_view(&lnav_data.ld_views[LNV_SCHEMA]);
+ }
+
+ if (!lnav_data.ld_initial_build && lnav_data.ld_show_help_view)
+ {
+ toggle_view(&lnav_data.ld_views[LNV_HELP]);
+ lnav_data.ld_initial_build = true;
+ }
+ if (!lnav_data.ld_initial_build
+ && lnav_data.ld_active_files.fc_file_names.empty())
+ {
+ lnav_data.ld_initial_build = true;
+ }
+ if (lnav_data.ld_log_source.text_line_count() > 0
+ || lnav_data.ld_text_source.text_line_count() > 0
+ || !lnav_data.ld_active_files.fc_other_files.empty())
+ {
+ lnav_data.ld_initial_build = true;
+ }
+
+ if (lnav_data.ld_initial_build) {
+ static bool ran_cleanup = false;
+ std::vector<std::pair<
+ Result<std::string, lnav::console::user_message>,
+ std::string>>
+ cmd_results;
+
+ execute_init_commands(ec, cmd_results);
+
+ if (!cmd_results.empty()) {
+ auto last_cmd_result = cmd_results.back();
+
+ if (last_cmd_result.first.isOk()) {
+ lnav_data.ld_rl_view->set_value(
+ last_cmd_result.first.unwrap());
+ } else {
+ ec.ec_error_callback_stack.back()(
+ last_cmd_result.first.unwrapErr());
+ }
+ lnav_data.ld_rl_view->set_alt_value(
+ last_cmd_result.second);
+ }
+
+ if (!ran_cleanup) {
+ line_buffer::cleanup_cache();
+ archive_manager::cleanup_cache();
+ tailer::cleanup_cache();
+ ran_cleanup = true;
+ }
+ }
+
+ if (session_stage == 1
+ && (lnav_data.ld_active_files.fc_file_names.empty()
+ || lnav_data.ld_log_source.text_line_count() > 0
+ || lnav_data.ld_text_source.text_line_count() > 0
+ || !lnav_data.ld_active_files.fc_other_files.empty()))
+ {
+ for (size_t view_index = 0; view_index < LNV__MAX;
+ view_index++)
+ {
+ const auto& vs
+ = session_data.sd_view_states[view_index];
+ auto& tview = lnav_data.ld_views[view_index];
+
+ if (vs.vs_top > 0 && tview.get_top() == 0_vl) {
+ log_info("restoring %s view top: %d",
+ lnav_view_strings[view_index],
+ vs.vs_top);
+ lnav_data.ld_views[view_index].set_top(
+ vis_line_t(vs.vs_top));
+ }
+ }
+ if (lnav_data.ld_mode == ln_mode_t::FILES) {
+ if (lnav_data.ld_active_files.fc_name_to_errors.empty())
+ {
+ log_info("switching to paging!");
+ lnav_data.ld_mode = ln_mode_t::PAGING;
+ lnav_data.ld_active_files.fc_files
+ | lnav::itertools::for_each(
+ &logfile::dump_stats);
+ } else {
+ lnav_data.ld_files_view.set_selection(0_vl);
+ }
+ }
+ session_stage += 1;
+ load_time_bookmarks();
+ }
+ }
+
+ handle_winch();
+
+ if (lnav_data.ld_child_terminated) {
+ lnav_data.ld_child_terminated = false;
+
+ log_info("checking for terminated child processes");
+ for (auto iter = lnav_data.ld_children.begin();
+ iter != lnav_data.ld_children.end();
+ ++iter)
+ {
+ int rc, child_stat;
+
+ rc = waitpid(*iter, &child_stat, WNOHANG);
+ if (rc == -1 || rc == 0) {
+ continue;
+ }
+
+ iter = lnav_data.ld_children.erase(iter);
+ }
+
+ gather_pipers();
+ }
+
+ if (lnav_data.ld_view_stack.empty()
+ || (lnav_data.ld_view_stack.size() == 1
+ && starting_view_stack_size == 2
+ && lnav_data.ld_active_files.fc_file_names.size()
+ == lnav_data.ld_text_source.size()))
+ {
+ lnav_data.ld_looping = false;
+ }
+ }
+ } catch (readline_curses::error& e) {
+ log_error("error: %s", strerror(e.e_err));
+ }
+}
+
+void
+wait_for_children()
+{
+ std::vector<struct pollfd> pollfds;
+ struct timeval to = {0, 333000};
+ static auto* ps = injector::get<pollable_supervisor*>();
+
+ do {
+ pollfds.clear();
+
+ auto update_res = ps->update_poll_set(pollfds);
+
+ if (update_res.ur_background == 0) {
+ break;
+ }
+
+ int rc = poll(&pollfds[0], pollfds.size(), to.tv_usec / 1000);
+
+ if (rc < 0) {
+ switch (errno) {
+ case 0:
+ case EINTR:
+ break;
+ default:
+ return;
+ }
+ }
+
+ ps->check_poll_set(pollfds);
+ lnav_data.ld_view_stack.top() |
+ [](auto tc) { lnav_data.ld_bottom_source.update_hits(tc); };
+ } while (lnav_data.ld_looping);
+}
+
+struct mode_flags_t {
+ bool mf_check_configs{false};
+ bool mf_install{false};
+ bool mf_update_formats{false};
+ bool mf_no_default{false};
+ bool mf_print_warnings{false};
+};
+
+static int
+print_user_msgs(std::vector<lnav::console::user_message> error_list,
+ mode_flags_t mf)
+{
+ size_t warning_count = 0;
+ int retval = EXIT_SUCCESS;
+
+ for (auto& iter : error_list) {
+ FILE* out_file;
+
+ switch (iter.um_level) {
+ case lnav::console::user_message::level::raw:
+ case lnav::console::user_message::level::ok:
+ out_file = stdout;
+ break;
+ case lnav::console::user_message::level::warning:
+ warning_count += 1;
+ if (!mf.mf_print_warnings) {
+ continue;
+ }
+ out_file = stderr;
+ break;
+ default:
+ out_file = stderr;
+ break;
+ }
+
+ lnav::console::print(out_file, iter);
+ if (iter.um_level == lnav::console::user_message::level::error) {
+ retval = EXIT_FAILURE;
+ }
+ }
+
+ if (warning_count > 0 && !mf.mf_print_warnings
+ && !(lnav_data.ld_flags & LNF_HEADLESS)
+ && (std::chrono::system_clock::now() - lnav_data.ld_last_dot_lnav_time
+ > 24h))
+ {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::warning(
+ attr_line_t()
+ .append(lnav::roles::number(fmt::to_string(warning_count)))
+ .append(" issues were detected when checking lnav's "
+ "configuration"))
+ .with_help(
+ attr_line_t("pass ")
+ .append(lnav::roles::symbol("-W"))
+ .append(" on the command line to display the issues\n")
+ .append("(this message will only be displayed once a "
+ "day)")));
+ }
+
+ return retval;
+}
+
+enum class verbosity_t : int {
+ quiet,
+ standard,
+ verbose,
+};
+
+struct stdin_options_t {
+ ghc::filesystem::path so_out;
+ bool so_timestamp{false};
+ auto_fd so_out_fd;
+};
+
+int
+main(int argc, char* argv[])
+{
+ std::vector<lnav::console::user_message> config_errors;
+ std::vector<lnav::console::user_message> loader_errors;
+ exec_context& ec = lnav_data.ld_exec_context;
+ int retval = EXIT_SUCCESS;
+
+ std::shared_ptr<piper_proc> stdin_reader;
+ stdin_options_t stdin_opts;
+ bool exec_stdin = false, load_stdin = false, stdin_captured = false;
+ mode_flags_t mode_flags;
+ const char* LANG = getenv("LANG");
+ ghc::filesystem::path stdin_tmp_path;
+ verbosity_t verbosity = verbosity_t::standard;
+
+ if (LANG == nullptr || strcmp(LANG, "C") == 0) {
+ setenv("LANG", "en_US.utf-8", 1);
+ }
+
+ (void) signal(SIGPIPE, SIG_IGN);
+ setlocale(LC_ALL, "");
+ try {
+ std::locale::global(std::locale(""));
+ } catch (const std::runtime_error& e) {
+ log_error("unable to set locale to ''");
+ }
+ umask(027);
+
+ /* Disable Lnav from being able to execute external commands if
+ * "LNAVSECURE" environment variable is set by the user.
+ */
+ if (getenv("LNAVSECURE") != nullptr) {
+ lnav_data.ld_flags |= LNF_SECURE_MODE;
+ }
+
+ lnav_data.ld_exec_context.ec_sql_callback = sql_callback;
+ lnav_data.ld_exec_context.ec_pipe_callback = pipe_callback;
+
+ lnav_data.ld_program_name = argv[0];
+ add_ansi_vars(ec.ec_global_vars);
+
+ rl_readline_name = "lnav";
+ lnav_data.ld_db_key_names = DEFAULT_DB_KEY_NAMES;
+
+ stable_sort(lnav_data.ld_db_key_names.begin(),
+ lnav_data.ld_db_key_names.end());
+
+ auto dot_lnav_path = lnav::paths::dotlnav();
+ std::error_code last_write_ec;
+ lnav_data.ld_last_dot_lnav_time
+ = ghc::filesystem::last_write_time(dot_lnav_path, last_write_ec);
+
+ ensure_dotlnav();
+
+ log_install_handlers();
+ sql_install_logger();
+
+ if (sqlite3_open(":memory:", lnav_data.ld_db.out()) != SQLITE_OK) {
+ fprintf(stderr, "error: unable to create sqlite memory database\n");
+ exit(EXIT_FAILURE);
+ }
+
+ {
+ int register_collation_functions(sqlite3 * db);
+
+ register_sqlite_funcs(lnav_data.ld_db.in(), sqlite_registration_funcs);
+ register_collation_functions(lnav_data.ld_db.in());
+ }
+
+ register_environ_vtab(lnav_data.ld_db.in());
+ register_static_file_vtab(lnav_data.ld_db.in());
+ {
+ static auto vtab_modules
+ = injector::get<std::vector<std::shared_ptr<vtab_module_base>>>();
+
+ for (const auto& mod : vtab_modules) {
+ mod->create(lnav_data.ld_db.in());
+ }
+ }
+
+ register_views_vtab(lnav_data.ld_db.in());
+ register_regexp_vtab(lnav_data.ld_db.in());
+ register_xpath_vtab(lnav_data.ld_db.in());
+ register_fstat_vtab(lnav_data.ld_db.in());
+ lnav::events::register_events_tab(lnav_data.ld_db.in());
+
+ auto _vtab_cleanup = finally([] {
+ static const char* VIRT_TABLES = R"(
+SELECT tbl_name FROM sqlite_master WHERE sql LIKE 'CREATE VIRTUAL TABLE%'
+)";
+
+ for (auto& lf : lnav_data.ld_active_files.fc_files) {
+ lf->close();
+ }
+ rebuild_indexes(ui_clock::now());
+
+ lnav_data.ld_vtab_manager = nullptr;
+
+ std::vector<std::string> tables_to_drop;
+ {
+ auto_mem<sqlite3_stmt> stmt(sqlite3_finalize);
+ bool done = false;
+
+ sqlite3_prepare_v2(
+ lnav_data.ld_db.in(), VIRT_TABLES, -1, stmt.out(), nullptr);
+ do {
+ auto ret = sqlite3_step(stmt.in());
+
+ switch (ret) {
+ case SQLITE_OK:
+ case SQLITE_DONE:
+ done = true;
+ break;
+ case SQLITE_ROW:
+ tables_to_drop.emplace_back(fmt::format(
+ FMT_STRING("DROP TABLE {}"),
+ reinterpret_cast<const char*>(
+ sqlite3_column_text(stmt.in(), 0))));
+ break;
+ }
+ } while (!done);
+ }
+
+ // XXX
+ lnav_data.ld_log_source.set_preview_sql_filter(nullptr);
+ lnav_data.ld_log_source.set_sql_filter("", nullptr);
+ lnav_data.ld_log_source.set_sql_marker("", nullptr);
+ lnav_config_listener::unload_all();
+
+ {
+ sqlite3_stmt* stmt_iter = nullptr;
+
+ do {
+ stmt_iter = sqlite3_next_stmt(lnav_data.ld_db.in(), stmt_iter);
+ if (stmt_iter != nullptr) {
+ const auto* stmt_sql = sqlite3_sql(stmt_iter);
+
+ log_warning("unfinalized SQL statement: %s", stmt_sql);
+ ensure(false);
+ }
+ } while (stmt_iter != nullptr);
+ }
+
+ for (auto& drop_stmt : tables_to_drop) {
+ sqlite3_exec(lnav_data.ld_db.in(),
+ drop_stmt.c_str(),
+ nullptr,
+ nullptr,
+ nullptr);
+ }
+#if defined(HAVE_SQLITE3_DROP_MODULES)
+ sqlite3_drop_modules(lnav_data.ld_db.in(), nullptr);
+#endif
+
+ lnav_data.ld_db.reset();
+ });
+
+#ifdef HAVE_LIBCURL
+ curl_global_init(CURL_GLOBAL_DEFAULT);
+#endif
+
+ static const std::string DEFAULT_DEBUG_LOG = "/dev/null";
+
+ lnav_data.ld_debug_log_name = DEFAULT_DEBUG_LOG;
+
+ std::vector<std::string> file_args;
+ std::vector<lnav::console::user_message> arg_errors;
+
+ CLI::App app{"The Logfile Navigator"};
+
+ app.add_option("-d",
+ lnav_data.ld_debug_log_name,
+ "Write debug messages to the given file.")
+ ->type_name("FILE");
+ app.add_flag("-q{0},-v{2}", verbosity, "Control the verbosity");
+ app.set_version_flag("-V,--version");
+ app.footer(fmt::format(FMT_STRING("Version: {}"), VCS_PACKAGE_STRING));
+
+ std::shared_ptr<lnav::management::operations> mmode_ops;
+
+ if (argc < 2 || strcmp(argv[1], "-m") != 0) {
+ app.add_flag("-H", lnav_data.ld_show_help_view, "show help");
+ app.add_option("-I", lnav_data.ld_config_paths, "include paths")
+ ->check(CLI::ExistingDirectory)
+ ->check([&arg_errors](std::string inc_path) -> std::string {
+ if (access(inc_path.c_str(), X_OK) != 0) {
+ arg_errors.emplace_back(
+ lnav::console::user_message::error(
+ attr_line_t("invalid configuration directory: ")
+ .append(lnav::roles::file(inc_path)))
+ .with_errno_reason());
+ return "unreadable";
+ }
+
+ return std::string();
+ })
+ ->allow_extra_args(false);
+ app.add_flag("-C", mode_flags.mf_check_configs, "check");
+ auto* install_flag
+ = app.add_flag("-i", mode_flags.mf_install, "install");
+ app.add_flag("-u", mode_flags.mf_update_formats, "update");
+ auto* write_flag = app.add_option("-w", stdin_opts.so_out, "write");
+ auto* ts_flag
+ = app.add_flag("-t", stdin_opts.so_timestamp, "timestamp");
+ auto* no_default_flag
+ = app.add_flag("-N", mode_flags.mf_no_default, "no def");
+ auto* rotated_flag = app.add_flag(
+ "-R", lnav_data.ld_active_files.fc_rotated, "rotated");
+ auto* recurse_flag = app.add_flag(
+ "-r", lnav_data.ld_active_files.fc_recursive, "recurse");
+ app.add_flag("-W", mode_flags.mf_print_warnings);
+ auto* headless_flag = app.add_flag(
+ "-n",
+ [](size_t count) { lnav_data.ld_flags |= LNF_HEADLESS; },
+ "headless");
+ auto* file_opt = app.add_option("file", file_args, "files");
+
+ auto wait_cb = [](size_t count) {
+ char b;
+ if (isatty(STDIN_FILENO) && read(STDIN_FILENO, &b, 1) == -1) {
+ perror("Read key from STDIN");
+ }
+ };
+ app.add_flag("-S", wait_cb);
+
+ auto cmd_appender
+ = [](std::string cmd) { lnav_data.ld_commands.emplace_back(cmd); };
+ auto cmd_validator = [&arg_errors](std::string cmd) -> std::string {
+ static const auto ARG_SRC
+ = intern_string::lookup("command-line argument");
+
+ if (cmd.empty()) {
+ return "empty commands are not allowed";
+ }
+
+ switch (cmd[0]) {
+ case ':':
+ case '/':
+ case ';':
+ case '|':
+ break;
+ default:
+ cmd.push_back(' ');
+ arg_errors.emplace_back(
+ lnav::console::user_message::error(
+ attr_line_t("invalid value for ")
+ .append_quoted("-c"_symbol)
+ .append(" option"))
+ .with_snippet(lnav::console::snippet::from(
+ ARG_SRC,
+ attr_line_t()
+ .append(" -c "_quoted_code)
+ .append(lnav::roles::quoted_code(cmd))
+ .append("\n")
+ .append(4, ' ')
+ .append(lnav::roles::error(
+ "^ command type prefix "
+ "is missing"))))
+ .with_help(command_arg_help()));
+ return "invalid prefix";
+ }
+ return std::string();
+ };
+ auto* cmd_opt = app.add_option("-c")
+ ->check(cmd_validator)
+ ->each(cmd_appender)
+ ->allow_extra_args(false)
+ ->trigger_on_parse(true);
+
+ auto file_appender = [](std::string file_path) {
+ lnav_data.ld_commands.emplace_back(
+ fmt::format(FMT_STRING("|{}"), file_path));
+ };
+ auto* exec_file_opt = app.add_option("-f")
+ ->trigger_on_parse(true)
+ ->allow_extra_args(false)
+ ->each(file_appender);
+
+ install_flag->needs(file_opt);
+ install_flag->excludes(write_flag,
+ ts_flag,
+ no_default_flag,
+ rotated_flag,
+ recurse_flag,
+ headless_flag,
+ cmd_opt,
+ exec_file_opt);
+ }
+
+ auto is_mmode = argc >= 2 && strcmp(argv[1], "-m") == 0;
+ try {
+ if (is_mmode) {
+ mmode_ops = lnav::management::describe_cli(app, argc, argv);
+ } else {
+ app.parse(argc, argv);
+ }
+ } catch (const CLI::CallForHelp& e) {
+ if (is_mmode) {
+ fmt::print("{}\n", app.help());
+ } else {
+ usage();
+ }
+ return EXIT_SUCCESS;
+ } catch (const CLI::CallForVersion& e) {
+ fmt::print("{}\n", VCS_PACKAGE_STRING);
+ return EXIT_SUCCESS;
+ } catch (const CLI::ParseError& e) {
+ if (!arg_errors.empty()) {
+ print_user_msgs(arg_errors, mode_flags);
+ return e.get_exit_code();
+ }
+
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error("invalid command-line arguments")
+ .with_reason(e.what()));
+ return e.get_exit_code();
+ }
+
+ lnav_data.ld_config_paths.insert(lnav_data.ld_config_paths.begin(),
+ lnav::paths::dotlnav());
+ lnav_data.ld_config_paths.insert(lnav_data.ld_config_paths.begin(),
+ SYSCONFDIR "/lnav");
+ lnav_data.ld_config_paths.insert(lnav_data.ld_config_paths.begin(),
+ "/etc/lnav");
+
+ if (lnav_data.ld_debug_log_name != DEFAULT_DEBUG_LOG) {
+ lnav_log_level = lnav_log_level_t::TRACE;
+ }
+
+ lnav_log_file = make_optional_from_nullable(
+ fopen(lnav_data.ld_debug_log_name.c_str(), "a"));
+ log_info("lnav started");
+
+ {
+ static auto builtin_formats
+ = injector::get<std::vector<std::shared_ptr<log_format>>>();
+ auto& root_formats = log_format::get_root_formats();
+
+ log_format::get_root_formats().insert(root_formats.begin(),
+ builtin_formats.begin(),
+ builtin_formats.end());
+ builtin_formats.clear();
+ }
+
+ load_config(lnav_data.ld_config_paths, config_errors);
+ if (!config_errors.empty()) {
+ if (print_user_msgs(config_errors, mode_flags) != EXIT_SUCCESS) {
+ return EXIT_FAILURE;
+ }
+ }
+ add_global_vars(ec);
+
+ if (mode_flags.mf_update_formats) {
+ if (!update_installs_from_git()) {
+ return EXIT_FAILURE;
+ }
+ return EXIT_SUCCESS;
+ }
+
+ if (mode_flags.mf_install) {
+ auto formats_installed_path
+ = lnav::paths::dotlnav() / "formats/installed";
+ auto configs_installed_path
+ = lnav::paths::dotlnav() / "configs/installed";
+
+ if (argc == 0) {
+ const auto install_reason
+ = attr_line_t("the ")
+ .append("-i"_symbol)
+ .append(
+ " option expects one or more log format definition "
+ "files to install in your lnav configuration "
+ "directory");
+ const auto install_help
+ = attr_line_t(
+ "log format definitions are JSON files that tell lnav "
+ "how to understand log files\n")
+ .append(
+ "See: https://docs.lnav.org/en/latest/formats.html");
+
+ lnav::console::print(stderr,
+ lnav::console::user_message::error(
+ "missing format files to install")
+ .with_reason(install_reason)
+ .with_help(install_help));
+ return EXIT_FAILURE;
+ }
+
+ for (auto& file_path : file_args) {
+ if (endswith(file_path, ".git")) {
+ if (!install_from_git(file_path)) {
+ return EXIT_FAILURE;
+ }
+ continue;
+ }
+
+ if (endswith(file_path, ".sql")) {
+ auto sql_path = ghc::filesystem::path(file_path);
+ auto read_res = lnav::filesystem::read_file(sql_path);
+ if (read_res.isErr()) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("unable to read SQL file: ")
+ .append(lnav::roles::file(file_path)))
+ .with_reason(read_res.unwrapErr()));
+ return EXIT_FAILURE;
+ }
+
+ auto dst_path = formats_installed_path / sql_path.filename();
+ auto write_res
+ = lnav::filesystem::write_file(dst_path, read_res.unwrap());
+ if (write_res.isErr()) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("unable to write SQL file: ")
+ .append(lnav::roles::file(file_path)))
+ .with_reason(write_res.unwrapErr()));
+ return EXIT_FAILURE;
+ }
+
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::ok(
+ attr_line_t("installed -- ")
+ .append(lnav::roles::file(dst_path))));
+ continue;
+ }
+
+ if (file_path == "extra") {
+ install_extra_formats();
+ continue;
+ }
+
+ auto file_type_result = detect_config_file_type(file_path);
+ if (file_type_result.isErr()) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("unable to open configuration file: ")
+ .append(lnav::roles::file(file_path)))
+ .with_reason(file_type_result.unwrapErr()));
+ return EXIT_FAILURE;
+ }
+ auto file_type = file_type_result.unwrap();
+
+ auto src_path = ghc::filesystem::path(file_path);
+ ghc::filesystem::path dst_name;
+ if (file_type == config_file_type::CONFIG) {
+ dst_name = src_path.filename();
+ } else {
+ auto format_list = load_format_file(src_path, loader_errors);
+
+ if (!loader_errors.empty()) {
+ if (print_user_msgs(loader_errors, mode_flags)
+ != EXIT_SUCCESS)
+ {
+ return EXIT_FAILURE;
+ }
+ }
+ if (format_list.empty()) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("invalid format file: ")
+ .append(lnav::roles::file(src_path.string())))
+ .with_reason("there must be at least one format "
+ "definition in the file"));
+ return EXIT_FAILURE;
+ }
+
+ dst_name = format_list[0].to_string() + ".json";
+ }
+ auto dst_path = (file_type == config_file_type::CONFIG
+ ? configs_installed_path
+ : formats_installed_path)
+ / dst_name;
+ auto_fd in_fd, out_fd;
+
+ if ((in_fd = open(file_path.c_str(), O_RDONLY)) == -1) {
+ perror("unable to open file to install");
+ } else if ((out_fd = lnav::filesystem::openp(
+ dst_path, O_WRONLY | O_CREAT | O_TRUNC, 0644))
+ == -1)
+ {
+ fprintf(stderr,
+ "error: unable to open destination: %s -- %s\n",
+ dst_path.c_str(),
+ strerror(errno));
+ } else {
+ char buffer[2048];
+ ssize_t rc;
+
+ while ((rc = read(in_fd, buffer, sizeof(buffer))) > 0) {
+ ssize_t remaining = rc, written;
+
+ while (remaining > 0) {
+ written = write(out_fd, buffer, rc);
+ if (written == -1) {
+ fprintf(stderr,
+ "error: unable to install file -- %s\n",
+ strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+
+ remaining -= written;
+ }
+ }
+
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::ok(
+ attr_line_t("installed -- ")
+ .append(lnav::roles::file(dst_path))));
+ }
+ }
+ return EXIT_SUCCESS;
+ }
+
+ if (lnav_data.ld_flags & LNF_SECURE_MODE) {
+ if ((sqlite3_set_authorizer(
+ lnav_data.ld_db.in(), sqlite_authorizer, nullptr))
+ != SQLITE_OK)
+ {
+ fprintf(stderr, "error: unable to attach sqlite authorizer\n");
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ /* If we statically linked against an ncurses library that had a non-
+ * standard path to the terminfo database, we need to set this variable
+ * so that it will try the default path.
+ */
+ setenv("TERMINFO_DIRS",
+ "/usr/share/terminfo:/lib/terminfo:/usr/share/lib/terminfo",
+ 0);
+
+ auto* filter_source = injector::get<filter_sub_source*>();
+ lnav_data.ld_vtab_manager = std::make_unique<log_vtab_manager>(
+ lnav_data.ld_db, lnav_data.ld_views[LNV_LOG], lnav_data.ld_log_source);
+
+ lnav_data.ld_log_source.set_exec_context(&lnav_data.ld_exec_context);
+ lnav_data.ld_views[LNV_HELP]
+ .set_sub_source(&lnav_data.ld_help_source)
+ .set_word_wrap(false);
+ auto log_fos = new field_overlay_source(lnav_data.ld_log_source,
+ lnav_data.ld_text_source);
+ if (lnav_data.ld_flags & LNF_HEADLESS) {
+ log_fos->fos_show_status = false;
+ }
+ log_fos->fos_contexts.emplace("", false, true);
+ lnav_data.ld_views[LNV_LOG]
+ .set_sub_source(&lnav_data.ld_log_source)
+ .set_delegate(std::make_shared<action_delegate>(
+ lnav_data.ld_log_source,
+ [](auto child_pid) { lnav_data.ld_children.push_back(child_pid); },
+ [](const auto& desc, auto pp) {
+ lnav_data.ld_pipers.push_back(pp);
+ lnav_data.ld_active_files.fc_file_names[desc].with_fd(
+ pp->get_fd());
+ lnav_data.ld_files_to_front.template emplace_back(desc, 0_vl);
+ }))
+ .add_input_delegate(lnav_data.ld_log_source)
+ .set_tail_space(2_vl)
+ .set_overlay_source(log_fos);
+ lnav_data.ld_views[LNV_TEXT].set_sub_source(&lnav_data.ld_text_source);
+ lnav_data.ld_views[LNV_HISTOGRAM].set_sub_source(
+ &lnav_data.ld_hist_source2);
+ lnav_data.ld_views[LNV_DB].set_sub_source(&lnav_data.ld_db_row_source);
+ lnav_data.ld_db_overlay.dos_labels = &lnav_data.ld_db_row_source;
+ lnav_data.ld_views[LNV_DB].set_overlay_source(&lnav_data.ld_db_overlay);
+ lnav_data.ld_spectro_source = std::make_unique<spectrogram_source>();
+ lnav_data.ld_views[LNV_SPECTRO]
+ .set_sub_source(lnav_data.ld_spectro_source.get())
+ .set_overlay_source(lnav_data.ld_spectro_source.get())
+ .add_input_delegate(*lnav_data.ld_spectro_source)
+ .set_tail_space(4_vl);
+ lnav_data.ld_views[LNV_SPECTRO].set_selectable(true);
+
+ lnav_data.ld_doc_view.set_sub_source(&lnav_data.ld_doc_source);
+ lnav_data.ld_example_view.set_sub_source(&lnav_data.ld_example_source);
+ lnav_data.ld_match_view.set_sub_source(&lnav_data.ld_match_source);
+ lnav_data.ld_preview_view.set_sub_source(&lnav_data.ld_preview_source);
+ lnav_data.ld_filter_view.set_sub_source(filter_source)
+ .add_input_delegate(*filter_source)
+ .add_child_view(&filter_source->fss_match_view)
+ .add_child_view(filter_source->fss_editor.get());
+ lnav_data.ld_files_view.set_sub_source(&lnav_data.ld_files_source)
+ .add_input_delegate(lnav_data.ld_files_source);
+ lnav_data.ld_user_message_view.set_sub_source(
+ &lnav_data.ld_user_message_source);
+
+ for (int lpc = 0; lpc < LNV__MAX; lpc++) {
+ lnav_data.ld_views[lpc].set_gutter_source(new log_gutter_source());
+ }
+
+ {
+ hist_source2& hs = lnav_data.ld_hist_source2;
+
+ lnav_data.ld_log_source.set_index_delegate(new hist_index_delegate(
+ lnav_data.ld_hist_source2, lnav_data.ld_views[LNV_HISTOGRAM]));
+ hs.init();
+ lnav_data.ld_zoom_level = 3;
+ hs.set_time_slice(ZOOM_LEVELS[lnav_data.ld_zoom_level]);
+ }
+
+ for (int lpc = 0; lpc < LNV__MAX; lpc++) {
+ lnav_data.ld_views[lpc].set_title(lnav_view_titles[lpc]);
+ }
+
+ load_formats(lnav_data.ld_config_paths, loader_errors);
+
+ {
+ auto_mem<char, sqlite3_free> errmsg;
+
+ if (sqlite3_exec(lnav_data.ld_db.in(),
+ init_sql.to_string_fragment().data(),
+ nullptr,
+ nullptr,
+ errmsg.out())
+ != SQLITE_OK)
+ {
+ fprintf(stderr,
+ "error: unable to execute DB init -- %s\n",
+ errmsg.in());
+ }
+ }
+
+ lnav_data.ld_vtab_manager->register_vtab(std::make_shared<all_logs_vtab>());
+ lnav_data.ld_vtab_manager->register_vtab(
+ std::make_shared<log_format_vtab_impl>(
+ *log_format::find_root_format("generic_log")));
+
+ for (auto& iter : log_format::get_root_formats()) {
+ auto lvi = iter->get_vtab_impl();
+
+ if (lvi != nullptr) {
+ lnav_data.ld_vtab_manager->register_vtab(lvi);
+ }
+ }
+
+ load_format_extra(lnav_data.ld_db.in(),
+ ec.ec_global_vars,
+ lnav_data.ld_config_paths,
+ loader_errors);
+ load_format_vtabs(lnav_data.ld_vtab_manager.get(), loader_errors);
+
+ if (!loader_errors.empty()) {
+ if (print_user_msgs(loader_errors, mode_flags) != EXIT_SUCCESS) {
+ if (mmode_ops == nullptr) {
+ return EXIT_FAILURE;
+ }
+ }
+ }
+
+ if (mmode_ops) {
+ auto perform_res = lnav::management::perform(mmode_ops);
+
+ return print_user_msgs(perform_res, mode_flags);
+ }
+
+ if (!mode_flags.mf_check_configs && !lnav_data.ld_show_help_view) {
+ DEFAULT_FILES.emplace_back("var/log/messages");
+ DEFAULT_FILES.emplace_back("var/log/system.log");
+ DEFAULT_FILES.emplace_back("var/log/syslog");
+ DEFAULT_FILES.emplace_back("var/log/syslog.log");
+ }
+
+ init_lnav_commands(lnav_commands);
+
+ lnav_data.ld_looping = true;
+ lnav_data.ld_mode = ln_mode_t::PAGING;
+
+ if ((isatty(STDIN_FILENO) || is_dev_null(STDIN_FILENO)) && file_args.empty()
+ && !mode_flags.mf_no_default)
+ {
+ char start_dir[FILENAME_MAX];
+
+ if (getcwd(start_dir, sizeof(start_dir)) == nullptr) {
+ perror("getcwd");
+ } else {
+ do {
+ if (!append_default_files()) {
+ retval = EXIT_FAILURE;
+ }
+ } while (lnav_data.ld_active_files.fc_file_names.empty()
+ && change_to_parent_dir());
+
+ if (chdir(start_dir) == -1) {
+ perror("chdir(start_dir)");
+ }
+ }
+ }
+
+ {
+ const auto internals_dir_opt = getenv_opt("DUMP_INTERNALS_DIR");
+
+ if (internals_dir_opt) {
+ lnav::dump_internals(internals_dir_opt.value());
+
+ return EXIT_SUCCESS;
+ }
+ }
+
+ if (file_args.empty()) {
+ load_stdin = true;
+ }
+
+ for (auto& file_path : file_args) {
+ auto file_path_without_trailer = file_path;
+ auto file_loc = file_location_t{mapbox::util::no_init{}};
+ auto_mem<char> abspath;
+ struct stat st;
+
+ auto colon_index = file_path.rfind(':');
+ if (colon_index != std::string::npos) {
+ file_path_without_trailer = file_path.substr(0, colon_index);
+ auto top_range = scn::string_view{&file_path[colon_index + 1],
+ &(*file_path.cend())};
+ auto scan_res = scn::scan_value<int>(top_range);
+
+ if (scan_res) {
+ file_path_without_trailer = file_path.substr(0, colon_index);
+ file_loc = vis_line_t(scan_res.value());
+ } else {
+ log_warning(
+ "failed to parse line number from file path with colon: %s",
+ file_path.c_str());
+ }
+ }
+ auto hash_index = file_path.rfind('#');
+ if (hash_index != std::string::npos) {
+ file_loc = file_path.substr(hash_index);
+ file_path_without_trailer = file_path.substr(0, hash_index);
+ }
+ if (stat(file_path_without_trailer.c_str(), &st) == 0) {
+ file_path = file_path_without_trailer;
+ }
+
+ if (file_path == "-") {
+ load_stdin = true;
+ }
+#ifdef HAVE_LIBCURL
+ else if (is_url(file_path))
+ {
+ auto ul = std::make_shared<url_loader>(file_path);
+
+ lnav_data.ld_active_files.fc_file_names[file_path].with_fd(
+ ul->copy_fd());
+ isc::to<curl_looper&, services::curl_streamer_t>().send(
+ [ul](auto& clooper) { clooper.add_request(ul); });
+ }
+#endif
+ else if (is_glob(file_path))
+ {
+ lnav_data.ld_active_files.fc_file_names[file_path].with_tail(
+ !(lnav_data.ld_flags & LNF_HEADLESS));
+ } else if (stat(file_path.c_str(), &st) == -1) {
+ if (file_path.find(':') != std::string::npos) {
+ lnav_data.ld_active_files.fc_file_names[file_path].with_tail(
+ !(lnav_data.ld_flags & LNF_HEADLESS));
+ } else {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("unable to open file: ")
+ .append(lnav::roles::file(file_path)))
+ .with_errno_reason());
+ retval = EXIT_FAILURE;
+ }
+ } else if (access(file_path.c_str(), R_OK) == -1) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("file exists, but is not readable: ")
+ .append(lnav::roles::file(file_path)))
+ .with_errno_reason());
+ retval = EXIT_FAILURE;
+ } else if (S_ISFIFO(st.st_mode)) {
+ auto_fd fifo_fd;
+
+ if ((fifo_fd = open(file_path.c_str(), O_RDONLY)) == -1) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("cannot open fifo: ")
+ .append(lnav::roles::file(file_path)))
+ .with_errno_reason());
+ retval = EXIT_FAILURE;
+ } else {
+ auto fifo_tmp_fd
+ = lnav::filesystem::open_temp_file(
+ ghc::filesystem::temp_directory_path()
+ / "lnav.fifo.XXXXXX")
+ .map([](auto&& pair) {
+ ghc::filesystem::remove(pair.first);
+
+ return std::move(pair.second);
+ })
+ .expect("Cannot create temporary file for FIFO");
+ auto fifo_piper = std::make_shared<piper_proc>(
+ std::move(fifo_fd), false, std::move(fifo_tmp_fd));
+ auto fifo_out_fd = fifo_piper->get_fd();
+ auto desc = fmt::format(FMT_STRING("FIFO [{}]"),
+ lnav_data.ld_fifo_counter++);
+
+ lnav_data.ld_active_files.fc_file_names[desc].with_fd(
+ std::move(fifo_out_fd));
+ lnav_data.ld_pipers.push_back(fifo_piper);
+ }
+ } else if ((abspath = realpath(file_path.c_str(), nullptr)) == nullptr)
+ {
+ perror("Cannot find file");
+ retval = EXIT_FAILURE;
+ } else if (S_ISDIR(st.st_mode)) {
+ std::string dir_wild(abspath.in());
+
+ if (dir_wild[dir_wild.size() - 1] == '/') {
+ dir_wild.resize(dir_wild.size() - 1);
+ }
+ lnav_data.ld_active_files.fc_file_names.emplace(
+ dir_wild + "/*", logfile_open_options());
+ } else {
+ lnav_data.ld_active_files.fc_file_names.emplace(
+ abspath.in(), logfile_open_options());
+ if (file_loc.valid()) {
+ lnav_data.ld_files_to_front.emplace_back(abspath.in(),
+ file_loc);
+ }
+ }
+ }
+
+ if (mode_flags.mf_check_configs) {
+ rescan_files(true);
+ for (auto& lf : lnav_data.ld_active_files.fc_files) {
+ logfile::rebuild_result_t rebuild_result;
+
+ do {
+ rebuild_result = lf->rebuild_index();
+ } while (rebuild_result == logfile::rebuild_result_t::NEW_LINES
+ || rebuild_result == logfile::rebuild_result_t::NEW_ORDER);
+ auto fmt = lf->get_format();
+ if (fmt == nullptr) {
+ fprintf(stderr,
+ "error:%s:no format found for file\n",
+ lf->get_filename().c_str());
+ retval = EXIT_FAILURE;
+ continue;
+ }
+ for (auto line_iter = lf->begin(); line_iter != lf->end();
+ ++line_iter)
+ {
+ if (line_iter->get_msg_level() != log_level_t::LEVEL_INVALID) {
+ continue;
+ }
+
+ size_t partial_len;
+
+ auto read_result = lf->read_line(line_iter);
+ if (read_result.isErr()) {
+ continue;
+ }
+ shared_buffer_ref sbr = read_result.unwrap();
+ if (fmt->scan_for_partial(sbr, partial_len)) {
+ long line_number = distance(lf->begin(), line_iter);
+ std::string full_line(sbr.get_data(), sbr.length());
+ std::string partial_line(sbr.get_data(), partial_len);
+
+ fprintf(stderr,
+ "error:%s:%ld:line did not match format %s\n",
+ lf->get_filename().c_str(),
+ line_number,
+ fmt->get_pattern_path(line_number).c_str());
+ fprintf(stderr,
+ "error:%s:%ld: line -- %s\n",
+ lf->get_filename().c_str(),
+ line_number,
+ full_line.c_str());
+ if (partial_len > 0) {
+ fprintf(stderr,
+ "error:%s:%ld:partial match -- %s\n",
+ lf->get_filename().c_str(),
+ line_number,
+ partial_line.c_str());
+ } else {
+ fprintf(stderr,
+ "error:%s:%ld:no partial match found\n",
+ lf->get_filename().c_str(),
+ line_number);
+ }
+ retval = EXIT_FAILURE;
+ }
+ }
+ }
+ return retval;
+ }
+
+ if (lnav_data.ld_flags & LNF_HEADLESS || mode_flags.mf_check_configs) {
+ } else if (!isatty(STDOUT_FILENO)) {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ "unable to display interactive text UI")
+ .with_reason("stdout is not a TTY")
+ .with_help(attr_line_t("pass the ")
+ .append("-n"_symbol)
+ .append(" option to run lnav in headless mode "
+ "or don't redirect stdout")));
+ retval = EXIT_FAILURE;
+ }
+
+ if (load_stdin && !isatty(STDIN_FILENO) && !is_dev_null(STDIN_FILENO)
+ && !exec_stdin)
+ {
+ if (stdin_opts.so_out.empty()) {
+ auto pattern
+ = lnav::paths::dotlnav() / "stdin-captures/stdin.XXXXXX";
+
+ auto open_result = lnav::filesystem::open_temp_file(pattern);
+ if (open_result.isErr()) {
+ fprintf(stderr,
+ "Unable to open temporary file for stdin: %s",
+ open_result.unwrapErr().c_str());
+ return EXIT_FAILURE;
+ }
+
+ auto temp_pair = open_result.unwrap();
+ stdin_tmp_path = temp_pair.first;
+ stdin_opts.so_out_fd = std::move(temp_pair.second);
+ } else {
+ auto open_res = lnav::filesystem::create_file(
+ stdin_opts.so_out, O_RDWR | O_TRUNC, 0600);
+ if (open_res.isErr()) {
+ fmt::print(stderr, "error: {}\n", open_res.unwrapErr());
+ return EXIT_FAILURE;
+ }
+
+ stdin_opts.so_out_fd = open_res.unwrap();
+ }
+
+ stdin_captured = true;
+ stdin_reader
+ = std::make_shared<piper_proc>(auto_fd(STDIN_FILENO),
+ stdin_opts.so_timestamp,
+ std::move(stdin_opts.so_out_fd));
+ lnav_data.ld_active_files.fc_file_names["stdin"]
+ .with_fd(stdin_reader->get_fd())
+ .with_include_in_session(false);
+ lnav_data.ld_pipers.push_back(stdin_reader);
+ }
+
+ if (!isatty(STDIN_FILENO) && isatty(STDOUT_FILENO)) {
+ if (dup2(STDOUT_FILENO, STDIN_FILENO) == -1) {
+ perror("cannot dup stdout to stdin");
+ }
+ }
+
+ if (retval == EXIT_SUCCESS
+ && lnav_data.ld_active_files.fc_file_names.empty()
+ && lnav_data.ld_commands.empty()
+ && !(lnav_data.ld_show_help_view || mode_flags.mf_no_default))
+ {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error("nothing to do")
+ .with_reason("no files given or default files found")
+ .with_help(
+ attr_line_t("use the ")
+ .append_quoted(lnav::roles::keyword("-N"))
+ .append(
+ " option to open lnav without loading any files")));
+ retval = EXIT_FAILURE;
+ }
+
+ if (retval == EXIT_SUCCESS) {
+ isc::supervisor root_superv(injector::get<isc::service_list>());
+
+ try {
+ char pcre2_version[128];
+
+ pcre2_config(PCRE2_CONFIG_VERSION, pcre2_version);
+ log_info("startup: %s", VCS_PACKAGE_STRING);
+ log_host_info();
+ log_info("Libraries:");
+#ifdef HAVE_BZLIB_H
+ log_info(" bzip=%s", BZ2_bzlibVersion());
+#endif
+#ifdef HAVE_LIBCURL
+ log_info(" curl=%s (%s)", LIBCURL_VERSION, LIBCURL_TIMESTAMP);
+#endif
+#ifdef HAVE_ARCHIVE_H
+ log_info(" libarchive=%d", ARCHIVE_VERSION_NUMBER);
+#endif
+ log_info(" ncurses=%s", NCURSES_VERSION);
+ log_info(" pcre2=%s", pcre2_version);
+ log_info(" readline=%s", rl_library_version);
+ log_info(" sqlite=%s", sqlite3_version);
+ log_info(" zlib=%s", zlibVersion());
+ log_info("lnav_data:");
+ log_info(" flags=%x", lnav_data.ld_flags);
+ log_info(" commands:");
+ for (auto cmd_iter = lnav_data.ld_commands.begin();
+ cmd_iter != lnav_data.ld_commands.end();
+ ++cmd_iter)
+ {
+ log_info(" %s", cmd_iter->c_str());
+ }
+ log_info(" files:");
+ for (auto file_iter
+ = lnav_data.ld_active_files.fc_file_names.begin();
+ file_iter != lnav_data.ld_active_files.fc_file_names.end();
+ ++file_iter)
+ {
+ log_info(" %s", file_iter->first.c_str());
+ }
+
+ if (lnav_data.ld_flags & LNF_HEADLESS) {
+ std::vector<
+ std::pair<Result<std::string, lnav::console::user_message>,
+ std::string>>
+ cmd_results;
+ textview_curses *log_tc, *text_tc, *tc;
+ bool output_view = true;
+
+ view_colors::init(true);
+ rescan_files(true);
+ if (!lnav_data.ld_active_files.fc_name_to_errors.empty()) {
+ for (const auto& pair :
+ lnav_data.ld_active_files.fc_name_to_errors)
+ {
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::error(
+ attr_line_t("unable to open file: ")
+ .append(lnav::roles::file(pair.first)))
+ .with_reason(pair.second.fei_description));
+ }
+
+ return EXIT_FAILURE;
+ }
+ init_session();
+ lnav_data.ld_exec_context.set_output("stdout", stdout, nullptr);
+ alerter::singleton().enabled(false);
+
+ log_tc = &lnav_data.ld_views[LNV_LOG];
+ log_tc->set_height(24_vl);
+ lnav_data.ld_view_stack.push_back(log_tc);
+ // Read all of stdin
+ wait_for_pipers();
+ rebuild_indexes_repeatedly();
+ wait_for_children();
+
+ log_tc->set_top(0_vl);
+ text_tc = &lnav_data.ld_views[LNV_TEXT];
+ text_tc->set_height(vis_line_t(text_tc->get_inner_height()
+ - text_tc->get_top()));
+ setup_highlights(lnav_data.ld_views[LNV_TEXT].get_highlights());
+ if (lnav_data.ld_log_source.text_line_count() == 0
+ && lnav_data.ld_text_source.text_line_count() > 0)
+ {
+ ensure_view(&lnav_data.ld_views[LNV_TEXT]);
+ }
+
+ log_info("Executing initial commands");
+ execute_init_commands(lnav_data.ld_exec_context, cmd_results);
+ archive_manager::cleanup_cache();
+ tailer::cleanup_cache();
+ line_buffer::cleanup_cache();
+ wait_for_pipers();
+ isc::to<curl_looper&, services::curl_streamer_t>()
+ .send_and_wait(
+ [](auto& clooper) { clooper.process_all(); });
+ rebuild_indexes_repeatedly();
+ wait_for_children();
+ if (!lnav_data.ld_active_files.fc_name_to_errors.empty()) {
+ for (const auto& pair :
+ lnav_data.ld_active_files.fc_name_to_errors)
+ {
+ fprintf(stderr,
+ "error: unable to open file: %s -- %s\n",
+ pair.first.c_str(),
+ pair.second.fei_description.c_str());
+ }
+
+ return EXIT_FAILURE;
+ }
+
+ for (auto& pair : cmd_results) {
+ if (pair.first.isErr()) {
+ lnav::console::print(stderr, pair.first.unwrapErr());
+ output_view = false;
+ } else {
+ auto msg = pair.first.unwrap();
+
+ if (startswith(msg, "info:")) {
+ if (verbosity == verbosity_t::verbose) {
+ printf("%s\n", msg.c_str());
+ }
+ } else if (!msg.empty()) {
+ printf("%s\n", msg.c_str());
+ output_view = false;
+ }
+ }
+ }
+
+ if (output_view && verbosity != verbosity_t::quiet
+ && !lnav_data.ld_view_stack.empty()
+ && !lnav_data.ld_stdout_used)
+ {
+ bool suppress_empty_lines = false;
+ unsigned long view_index;
+ vis_line_t y;
+
+ tc = *lnav_data.ld_view_stack.top();
+ view_index = tc - lnav_data.ld_views;
+ switch (view_index) {
+ case LNV_DB:
+ case LNV_HISTOGRAM:
+ suppress_empty_lines = true;
+ break;
+ default:
+ break;
+ }
+
+ auto* los = tc->get_overlay_source();
+
+ vis_line_t vl;
+ for (vl = tc->get_top(); vl < tc->get_inner_height();
+ ++vl, ++y)
+ {
+ attr_line_t al;
+
+ while (los != nullptr
+ && los->list_value_for_overlay(
+ *tc, y, tc->get_inner_height(), vl, al))
+ {
+ write_line_to(stdout, al);
+ ++y;
+ }
+
+ std::vector<attr_line_t> rows(1);
+ tc->listview_value_for_rows(*tc, vl, rows);
+ if (suppress_empty_lines && rows[0].empty()) {
+ continue;
+ }
+
+ write_line_to(stdout, rows[0]);
+ }
+ {
+ attr_line_t al;
+
+ while (los != nullptr
+ && los->list_value_for_overlay(
+ *tc, y, tc->get_inner_height(), vl, al)
+ && !al.empty())
+ {
+ write_line_to(stdout, al);
+ ++y;
+ }
+ }
+ }
+ } else {
+ init_session();
+
+ guard_termios gt(STDIN_FILENO);
+ lnav_log_orig_termios = gt.get_termios();
+
+ looper();
+
+ dup2(STDOUT_FILENO, STDERR_FILENO);
+
+ signal(SIGINT, SIG_DFL);
+
+ save_session();
+ }
+ } catch (const std::system_error& e) {
+ if (e.code().value() != EPIPE) {
+ fprintf(stderr, "error: %s\n", e.what());
+ }
+ } catch (const line_buffer::error& e) {
+ fprintf(stderr, "error: %s\n", strerror(e.e_err));
+ } catch (const std::exception& e) {
+ fprintf(stderr, "error: %s\n", e.what());
+ }
+
+ // When reading from stdin, tell the user where the capture file is
+ // stored so they can look at it later.
+ if (stdin_captured && stdin_opts.so_out.empty()
+ && !(lnav_data.ld_flags & LNF_HEADLESS))
+ {
+ auto stdin_fd = stdin_reader->get_fd();
+ struct stat stdin_stat;
+ nonstd::optional<file_ssize_t> stdin_size;
+
+ // NB: the file can be deleted by the time we get here
+ fchmod(stdin_fd.get(), S_IRUSR);
+ if (fstat(stdin_fd.get(), &stdin_stat) != -1) {
+ stdin_size = stdin_stat.st_size;
+ }
+ if (!ghc::filesystem::exists(stdin_tmp_path)
+ || verbosity == verbosity_t::quiet || !stdin_size
+ || stdin_size.value() > MAX_STDIN_CAPTURE_SIZE)
+ {
+ std::error_code rm_err_code;
+
+ log_info("not saving stdin capture -- %s (size=%d)",
+ stdin_tmp_path.c_str(),
+ stdin_size.value_or(-1));
+ ghc::filesystem::remove(stdin_tmp_path, rm_err_code);
+ } else {
+ auto home = getenv_opt("HOME");
+ auto path_str = stdin_tmp_path.string();
+
+ if (home && startswith(path_str, home.value())) {
+ path_str = path_str.substr(strlen(home.value()));
+ if (path_str[0] != '/') {
+ path_str.insert(0, 1, '/');
+ }
+ path_str.insert(0, 1, '~');
+ }
+
+ lnav::console::print(
+ stderr,
+ lnav::console::user_message::info(
+ attr_line_t()
+ .append(lnav::roles::number(humanize::file_size(
+ stdin_size.value(), humanize::alignment::none)))
+ .append(" of data from stdin was captured and "
+ "will be saved for one day. You can "
+ "reopen it by running:\n")
+ .appendf(FMT_STRING(" {} "),
+ lnav_data.ld_program_name)
+ .append(lnav::roles::file(path_str))));
+ }
+ }
+ }
+
+ return retval;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 09:20:31 +0000