/** * Copyright (c) 2007-2012, 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. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "lnav.hh" #include "help.hh" #include "init-sql.hh" #include "logfile.hh" #include "lnav_util.hh" #include "ansi_scrubber.hh" #include "listview_curses.hh" #include "statusview_curses.hh" #include "vt52_curses.hh" #include "readline_curses.hh" #include "textview_curses.hh" #include "logfile_sub_source.hh" #include "textfile_sub_source.hh" #include "grep_proc.hh" #include "bookmarks.hh" #include "hist_source.hh" #include "top_status_source.hh" #include "bottom_status_source.hh" #include "piper_proc.hh" #include "log_vtab_impl.hh" #include "db_sub_source.hh" #include "pcrecpp.h" #include "termios_guard.hh" #include "data_parser.hh" #include "xterm_mouse.hh" #include "lnav_commands.hh" #include "column_namer.hh" #include "log_data_table.hh" #include "session_data.hh" #include "lnav_config.hh" #include "sql_util.hh" #include "sqlite-extension-func.h" #include "yajlpp.hh" using namespace std; #define HELP_MSG_1(x, msg) \ "Press '" ANSI_BOLD(#x) "' " msg #define HELP_MSG_2(x, y, msg) \ "Press " ANSI_BOLD(#x) "/" ANSI_BOLD(#y) " " msg static multimap DEFAULT_FILES; struct _lnav_data lnav_data; struct hist_level { int hl_bucket_size; int hl_group_size; }; static struct hist_level HIST_ZOOM_VALUES[] = { { 24 * 60 * 60, 7 * 24 * 60 * 60 }, { 4 * 60 * 60, 24 * 60 * 60 }, { 60 * 60, 24 * 60 * 60 }, { 10 * 60, 60 * 60 }, { 60, 60 * 60 }, }; static const int HIST_ZOOM_LEVELS = sizeof(HIST_ZOOM_VALUES) / sizeof(struct hist_level); static bookmark_type_t BM_EXAMPLE; static bookmark_type_t BM_QUERY; const char *lnav_view_strings[LNV__MAX] = { "log", "text", "help", "histogram", "graph", "db", "example", }; class field_overlay_source : public list_overlay_source { public: field_overlay_source() : fos_active(false), fos_active_prev(false), fos_scanner(NULL), fos_parser(NULL), fos_namer(NULL) { }; ~field_overlay_source() { if (this->fos_scanner) { delete this->fos_scanner; } if (this->fos_parser) { delete this->fos_parser; } if (this->fos_namer) { delete this->fos_namer; } }; size_t list_overlay_count(const listview_curses &lv) { logfile_sub_source &lss = lnav_data.ld_log_source; if (!this->fos_active) { return 0; } if (lss.text_line_count() == 0) { return 0; } content_line_t cl = lss.at(lv.get_top()); logfile * lf = lss.find(cl); std::string line = lf->read_line(lf->begin() + cl); struct line_range body; string_attrs_t sa; this->fos_line_values.clear(); this->fos_key_size = 0; lf->get_format()->annotate(line, sa, this->fos_line_values); for (std::vector::iterator iter = this->fos_line_values.begin(); iter != this->fos_line_values.end(); ++iter) { this->fos_key_size = max(this->fos_key_size, (int)iter->lv_name.length()); } body = find_string_attr_range(sa, "body"); if (body.lr_end != -1) { line = line.substr(body.lr_start); } if (this->fos_parser) { delete this->fos_parser; delete this->fos_scanner; delete this->fos_namer; } this->fos_scanner = new data_scanner(line); this->fos_parser = new data_parser(this->fos_scanner); this->fos_parser->parse(); this->fos_namer = new column_namer(); for (data_parser::element_list_t::iterator iter = this->fos_parser->dp_pairs.begin(); iter != this->fos_parser->dp_pairs.end(); ++iter) { std::string colname = this->fos_parser->get_element_string( iter->e_sub_elements->front()); colname = this->fos_namer->add_column(colname); this->fos_key_size = max(this->fos_key_size, (int)colname.length()); } return 1 + this->fos_line_values.size() + 1 + this->fos_parser->dp_pairs.size(); }; bool list_value_for_overlay(const listview_curses &lv, vis_line_t y, attr_line_t &value_out) { if (!this->fos_active || this->fos_parser == NULL) { return false; } size_t total_count = (1 + this->fos_line_values.size() + 1 + this->fos_parser->dp_pairs.size()); int row = (int)y - 1; bool last_line = (row == (int)(total_count - 1)); if (row < 0 || row >= (int)total_count) { return false; } std::string &str = value_out.get_string(); if (row == 0) { if (this->fos_line_values.empty()) { str = " No known message fields"; } else{ str = " Known message fields:"; } return true; } row -= 1; if (row == (int)this->fos_line_values.size()) { if (this->fos_parser->dp_pairs.empty()) { str = " No discovered message fields"; } else{ str = " Discovered message fields:"; } return true; } if (row < (int)this->fos_line_values.size()) { str = " " + this->fos_line_values[row].lv_name; int padding = this->fos_key_size - str.length() + 3; str.append(padding, ' '); str += " = " + this->fos_line_values[row].to_string(); } else { data_parser::element_list_t::iterator iter; row -= this->fos_line_values.size() + 1; iter = this->fos_parser->dp_pairs.begin(); std::advance(iter, row); str = " " + this->fos_namer->cn_names[row]; int padding = this->fos_key_size - str.length() + 3; str.append(padding, ' '); str += " = " + this->fos_parser->get_element_string( iter->e_sub_elements->back()); } string_attrs_t & sa = value_out.get_attrs(); struct line_range lr = { 1, 2 }; sa[lr].insert(make_string_attr("graphic", last_line ? ACS_LLCORNER : ACS_LTEE)); lr.lr_start = 3 + this->fos_key_size + 3; lr.lr_end = -1; sa[lr].insert(make_string_attr("style", A_BOLD)); return true; }; bool fos_active; bool fos_active_prev; data_scanner *fos_scanner; data_parser * fos_parser; column_namer *fos_namer; std::vector fos_line_values; int fos_key_size; }; static int handle_collation_list(void *ptr, int ncols, char **colvalues, char **colnames) { lnav_data.ld_rl_view->add_possibility(LNM_SQL, "*", colvalues[1]); return 0; } static int handle_db_list(void *ptr, int ncols, char **colvalues, char **colnames) { lnav_data.ld_rl_view->add_possibility(LNM_SQL, "*", colvalues[1]); return 0; } static int handle_table_list(void *ptr, int ncols, char **colvalues, char **colnames) { lnav_data.ld_rl_view->add_possibility(LNM_SQL, "*", colvalues[0]); return 0; } static int handle_table_info(void *ptr, int ncols, char **colvalues, char **colnames) { lnav_data.ld_rl_view->add_possibility(LNM_SQL, "*", colvalues[1]); if (strcmp(colvalues[5], "1") == 0) { lnav_data.ld_db_key_names.push_back(colvalues[1]); } return 0; } static int handle_foreign_key_list(void *ptr, int ncols, char **colvalues, char **colnames) { lnav_data.ld_db_key_names.push_back(colvalues[3]); lnav_data.ld_db_key_names.push_back(colvalues[4]); return 0; } struct sqlite_metadata_callbacks lnav_sql_meta_callbacks = { handle_collation_list, handle_db_list, handle_table_list, handle_table_info, handle_foreign_key_list, }; bool setup_logline_table() { textview_curses &log_view = lnav_data.ld_views[LNV_LOG]; bool retval = false; if (log_view.get_inner_height()) { vis_line_t vl = log_view.get_top(); content_line_t cl = lnav_data.ld_log_source.at(vl); lnav_data.ld_vtab_manager->unregister_vtab("logline"); lnav_data.ld_vtab_manager->register_vtab(new log_data_table(cl)); retval = true; } lnav_data.ld_db_key_names.clear(); lnav_data.ld_rl_view->clear_possibilities(LNM_SQL, "*"); lnav_data.ld_rl_view->add_possibility(LNM_SQL, "*", sql_keywords); lnav_data.ld_rl_view->add_possibility(LNM_SQL, "*", sql_function_names); walk_sqlite_metadata(lnav_data.ld_db.in(), lnav_sql_meta_callbacks); { log_vtab_manager::iterator iter; for (iter = lnav_data.ld_vtab_manager->begin(); iter != lnav_data.ld_vtab_manager->end(); ++iter) { iter->second->get_foreign_keys(lnav_data.ld_db_key_names); } } stable_sort(lnav_data.ld_db_key_names.begin(), lnav_data.ld_db_key_names.end()); return retval; } /** * Observer for loading progress that updates the bottom status bar. */ class loading_observer : public logfile_sub_source::observer { public: loading_observer() : lo_last_offset(0), lo_last_line(0) { }; void logfile_indexing(logfile &lf, off_t off, size_t total) { /* XXX assert(off <= total); */ if (off > (off_t)total) { off = total; } if ((std::abs((long int)(off - this->lo_last_offset)) > (off_t)(128 * 1024)) || (size_t)off == total) { lnav_data.ld_bottom_source.update_loading(off, total); this->do_update(); this->lo_last_offset = off; } if (!lnav_data.ld_looping) { throw logfile::error(lf.get_filename(), EINTR); } }; void logfile_sub_source_filtering(logfile_sub_source &lss, content_line_t cl, size_t total) { if (std::abs(cl - this->lo_last_line) > 1024 || (size_t)cl == (total - 1)) { lnav_data.ld_bottom_source.update_loading(cl, (total - 1)); this->do_update(); this->lo_last_line = cl; } if (!lnav_data.ld_looping) { throw logfile::error("", EINTR); } }; private: void do_update(void) { lnav_data.ld_top_source.update_time(); lnav_data.ld_status[LNS_TOP].do_update(); lnav_data.ld_status[LNS_BOTTOM].do_update(); refresh(); }; off_t lo_last_offset; content_line_t lo_last_line; }; static void rebuild_hist(size_t old_count, bool force) { textview_curses & hist_view = lnav_data.ld_views[LNV_HISTOGRAM]; logfile_sub_source &lss = lnav_data.ld_log_source; size_t new_count = lss.text_line_count(); hist_source &hs = lnav_data.ld_hist_source; int zoom_level = lnav_data.ld_hist_zoom; time_t old_time; int lpc; old_time = hs.value_for_row(hist_view.get_top()); hs.set_bucket_size(HIST_ZOOM_VALUES[zoom_level].hl_bucket_size); hs.set_group_size(HIST_ZOOM_VALUES[zoom_level].hl_group_size); if (force) { hs.clear(); } for (lpc = old_count; lpc < (int)new_count; lpc++) { logline *ll = lss.find_line(lss.at(vis_line_t(lpc))); if (!(ll->get_level() & logline::LEVEL_CONTINUED)) { hs.add_value(ll->get_time(), bucket_type_t(ll->get_level() & ~logline::LEVEL__FLAGS)); } } hs.analyze(); hist_view.reload_data(); hist_view.set_top(hs.row_for_value(old_time)); } void rebuild_indexes(bool force) { static loading_observer obs; logfile_sub_source &lss = lnav_data.ld_log_source; textview_curses & log_view = lnav_data.ld_views[LNV_LOG]; textview_curses & text_view = lnav_data.ld_views[LNV_TEXT]; vis_line_t old_bottom(0), height(0); content_line_t top_content = content_line_t(-1); unsigned long width; bool scroll_down; size_t old_count; time_t old_time; old_count = lss.text_line_count(); if (old_count) { top_content = lss.at(log_view.get_top()); } { textfile_sub_source * tss = &lnav_data.ld_text_source; std::list::iterator iter; size_t new_count; text_view.get_dimensions(height, width); old_bottom = text_view.get_top() + height; scroll_down = (size_t)old_bottom > tss->text_line_count(); for (iter = tss->tss_files.begin(); iter != tss->tss_files.end(); ) { (*iter)->rebuild_index(&obs); if ((*iter)->get_format() != NULL) { logfile *lf = *iter; if (lnav_data.ld_log_source.insert_file(lf)) { iter = tss->tss_files.erase(iter); force = true; } else { ++iter; } } else { ++iter; } } text_view.reload_data(); new_count = tss->text_line_count(); if (scroll_down && new_count >= (size_t)old_bottom) { text_view.set_top(vis_line_t(new_count - height + 1)); } } old_time = lnav_data.ld_top_time; log_view.get_dimensions(height, width); old_bottom = log_view.get_top() + height; scroll_down = (size_t)old_bottom > old_count; if (force) { old_count = 0; } if (lss.rebuild_index(&obs, force)) { size_t new_count = lss.text_line_count(); grep_line_t start_line; int lpc; log_view.reload_data(); if (scroll_down && new_count >= (size_t)old_bottom) { log_view.set_top(vis_line_t(new_count - height + 1)); } else if (!scroll_down && force) { content_line_t new_top_content = content_line_t(-1); if (new_count) { new_top_content = lss.at(log_view.get_top()); } if (new_top_content != top_content) { log_view.set_top(lss.find_from_time(old_time)); } } rebuild_hist(old_count, force); start_line = force ? grep_line_t(0) : grep_line_t(-1); if (force) { log_view.match_reset(); } for (lpc = 0; lpc < LG__MAX; lpc++) { if (lnav_data.ld_grep_child[lpc].get() != NULL) { lnav_data.ld_grep_child[lpc]->get_grep_proc()-> queue_request(start_line); lnav_data.ld_grep_child[lpc]->get_grep_proc()->start(); } } if (lnav_data.ld_search_child[LNV_LOG].get() != NULL) { lnav_data.ld_search_child[LNV_LOG]->get_grep_proc()->reset(); lnav_data.ld_search_child[LNV_LOG]->get_grep_proc()-> queue_request(start_line); lnav_data.ld_search_child[LNV_LOG]->get_grep_proc()->start(); } } lnav_data.ld_bottom_source.update_filtered(lss); lnav_data.ld_scroll_broadcaster.invoke(lnav_data.ld_view_stack.top()); } class plain_text_source : public text_sub_source { public: plain_text_source(string text) { size_t start = 0, end; while ((end = text.find('\n', start)) != string::npos) { this->tds_lines.push_back(text.substr(start, end - start)); start = end + 1; } this->tds_lines.push_back(text.substr(start)); }; size_t text_line_count() { return this->tds_lines.size(); }; void text_value_for_line(textview_curses &tc, int row, string &value_out, bool no_scrub) { value_out = this->tds_lines[row]; }; private: vector tds_lines; }; class time_label_source : public hist_source::label_source { public: time_label_source() { }; void hist_label_for_bucket(int bucket_start_value, const hist_source::bucket_t &bucket, string &label_out) { hist_source::bucket_t::const_iterator iter; int total = 0, errors = 0, warnings = 0; time_t bucket_time = bucket_start_value; struct tm *bucket_tm; char buffer[128]; int len; bucket_tm = gmtime((time_t *)&bucket_time); if (bucket_tm) { strftime(buffer, sizeof(buffer), " %a %b %d %H:%M ", bucket_tm); } else { fprintf(stderr, "bad time %d\n", bucket_start_value); buffer[0] = '\0'; } for (iter = bucket.begin(); iter != bucket.end(); iter++) { total += (int)iter->second; switch (iter->first) { case logline::LEVEL_FATAL: case logline::LEVEL_ERROR: case logline::LEVEL_CRITICAL: errors += (int)iter->second; break; case logline::LEVEL_WARNING: warnings += (int)iter->second; break; } } len = strlen(buffer); snprintf(&buffer[len], sizeof(buffer) - len, " %8d total %8d errors %8d warnings", total, errors, warnings); label_out = string(buffer); }; }; static bool append_default_files(lnav_flags_t flag) { bool retval = true; if (lnav_data.ld_flags & flag) { pair::iterator, multimap::iterator> range; bool found = false; for (range = DEFAULT_FILES.equal_range(flag); range.first != range.second && !found; range.first++) { string path = range.first->second; struct stat st; if (access(path.c_str(), R_OK) == 0) { auto_mem abspath; path = get_current_dir() + range.first->second; if ((abspath = realpath(path.c_str(), NULL)) == NULL) { perror("Unable to resolve path"); } else { lnav_data.ld_file_names.insert(make_pair(abspath.in(), -1)); found = true; } } else if (stat(path.c_str(), &st) == 0) { fprintf(stderr, "error: cannot read -- %s%s\n", get_current_dir().c_str(), path.c_str()); 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 back_ten(int ten_minute) { logfile_sub_source &lss = lnav_data.ld_log_source; time_t hour = rounddown_offset(lnav_data.ld_top_time, 60 * 60, ten_minute * 10 * 60); vis_line_t line = lss.find_from_time(hour); --line; lnav_data.ld_view_stack.top()->set_top(line); } static void update_view_name(void) { static const char *view_names[LNV__MAX] = { "LOG", "TEXT", "HELP", "HIST", "GRAPH", "DB", "EXAMPLE", }; status_field &sf = lnav_data.ld_top_source.statusview_value_for_field( top_status_source::TSF_VIEW_NAME); textview_curses * tc = lnav_data.ld_view_stack.top(); struct line_range lr = { 0, -1 }; sf.set_value("% 5s ", view_names[tc - lnav_data.ld_views]); sf.get_value().get_attrs()[lr].insert(make_string_attr( "style", A_REVERSE | COLOR_PAIR(view_colors:: VC_BLUE_ON_WHITE))); } bool toggle_view(textview_curses *toggle_tc) { textview_curses *tc = lnav_data.ld_view_stack.top(); bool retval = false; if (tc == toggle_tc) { lnav_data.ld_view_stack.pop(); } else { lnav_data.ld_view_stack.push(toggle_tc); retval = true; } tc = lnav_data.ld_view_stack.top(); tc->set_needs_update(); lnav_data.ld_scroll_broadcaster.invoke(tc); update_view_name(); return retval; } static void change_text_file(void) { textview_curses *tc = &lnav_data.ld_views[LNV_TEXT]; tc->reload_data(); if (lnav_data.ld_search_child[LNV_TEXT].get() != NULL) { grep_proc *gp = lnav_data.ld_search_child[LNV_TEXT]->get_grep_proc(); tc->match_reset(); gp->reset(); gp->queue_request(grep_line_t(0)); gp->start(); } lnav_data.ld_scroll_broadcaster.invoke(tc); } /** * Ensure that the view is on the top of the view stack. * * @param expected_tc The text view that should be on top. */ void ensure_view(textview_curses *expected_tc) { textview_curses *tc = lnav_data.ld_view_stack.top(); if (tc != expected_tc) { toggle_view(expected_tc); } } static void moveto_cluster(vis_line_t(bookmark_vector::*f) ( vis_line_t), bookmark_type_t *bt, vis_line_t top) { textview_curses *tc = lnav_data.ld_view_stack.top(); if (tc != &lnav_data.ld_views[LNV_LOG]) { flash(); } else { logfile_sub_source &lss = lnav_data.ld_log_source; vis_bookmarks & bm = tc->get_bookmarks(); vis_line_t vl(-1), last_top(top); logline::level_t last_level; bool done = false; time_t last_time; logline * ll; ll = lss.find_line(lss.at(top)); last_time = ll->get_time(); last_level = ll->get_level(); while (vl == -1 && (top = (bm[bt].*f)(top)) != -1) { ll = lss.find_line(lss.at(top)); if (std::abs(last_top - top) > 1 || ll->get_level() != last_level || ll->get_time() != last_time) { last_time = ll->get_time(); last_level = ll->get_level(); vl = top; } last_top = top; } while (vl > 0 && !done) { ll = lss.find_line(lss.at(vis_line_t(vl - 1))); if (ll->get_level() != last_level || ll->get_time() != last_time) { done = true; } else { --vl; } } tc->set_top(vl); } } static void check_for_clipboard(FILE **pfile, const char *execstr) { if (execstr == NULL || pfile == NULL || *pfile != NULL) { return; } if ((*pfile = popen(execstr, "w")) != NULL && pclose(*pfile) == 0) { *pfile = popen(execstr, "w"); } else { *pfile = NULL; } return; } /* XXX For one, this code is kinda crappy. For two, we should probably link * directly with X so we don't need to have xclip installed and it'll work if * we're ssh'd into a box. */ static void copy_to_xclip(void) { textview_curses *tc = lnav_data.ld_view_stack.top(); bookmark_vector &bv = tc->get_bookmarks()[&textview_curses::BM_USER]; bookmark_vector::iterator iter; FILE * pfile = NULL; int line_count = 0; string line; /* XXX : Check if this is linux or MAC. Probably not the best solution but */ /* better than traversing the PATH to stat for the binaries or trying to */ /* forkexec. */ check_for_clipboard(&pfile, "xclip -i > /dev/null 2>&1"); check_for_clipboard(&pfile, "pbcopy > /dev/null 2>&1"); if (!pfile) { flash(); lnav_data.ld_rl_view->set_value( "error: Unable to copy to clipboard. " "Make sure xclip or pbcopy is installed."); return; } for (iter = bv.begin(); iter != bv.end(); iter++) { tc->grep_value_for_line(*iter, line); fprintf(pfile, "%s\n", line.c_str()); line_count += 1; } pclose(pfile); pfile = NULL; char buffer[128]; snprintf(buffer, sizeof(buffer), "Copied " ANSI_BOLD("%d") " lines to the clipboard", line_count); lnav_data.ld_rl_view->set_value(buffer); } static void handle_paging_key(int ch) { textview_curses * tc = lnav_data.ld_view_stack.top(); logfile_sub_source *lss = NULL; vis_bookmarks & bm = tc->get_bookmarks(); if (tc->handle_key(ch)) { return; } lss = dynamic_cast(tc->get_sub_source()); /* process the command keystroke */ switch (ch) { case 'q': case 'Q': { string msg = ""; if (tc == &lnav_data.ld_views[LNV_DB]) { msg = HELP_MSG_2(v, V, "to switch to the SQL result view"); } else if (tc == &lnav_data.ld_views[LNV_HISTOGRAM]) { msg = HELP_MSG_2(i, I, "to switch to the histogram view"); } else if (tc == &lnav_data.ld_views[LNV_TEXT]) { msg = HELP_MSG_1(t, "to switch to the text file view"); } else if (tc == &lnav_data.ld_views[LNV_GRAPH]) { msg = HELP_MSG_1(g, "to switch to the graph view"); } lnav_data.ld_rl_view->set_alt_value(msg); } lnav_data.ld_view_stack.pop(); if (lnav_data.ld_view_stack.empty() || (lnav_data.ld_view_stack.size() == 1 && lnav_data.ld_log_source.text_line_count() == 0)) { lnav_data.ld_looping = false; } else { tc = lnav_data.ld_view_stack.top(); tc->set_needs_update(); lnav_data.ld_scroll_broadcaster.invoke(tc); update_view_name(); } break; case 'c': copy_to_xclip(); break; case 'C': if (lss) { lss->get_user_bookmarks()[&textview_curses::BM_USER].clear(); tc->reload_data(); lnav_data.ld_rl_view->set_value("Cleared bookmarks"); } break; case 'e': moveto_cluster(&bookmark_vector::next, &logfile_sub_source::BM_ERRORS, tc->get_top()); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_2( w, W, "to move forward/backward through warning messages")); break; case 'E': moveto_cluster(&bookmark_vector::prev, &logfile_sub_source::BM_ERRORS, tc->get_top()); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_2( w, W, "to move forward/backward through warning messages")); break; case 'w': moveto_cluster(&bookmark_vector::next, &logfile_sub_source::BM_WARNINGS, tc->get_top()); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_2( o, O, "to move forward/backward an hour")); break; case 'W': moveto_cluster(&bookmark_vector::prev, &logfile_sub_source::BM_WARNINGS, tc->get_top()); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_2( o, O, "to move forward/backward an hour")); break; case 'n': tc->set_top(bm[&textview_curses::BM_SEARCH].next(tc->get_top())); lnav_data.ld_rl_view->set_alt_value( "Press '" ANSI_BOLD(">") "' or '" ANSI_BOLD("<") "' to scroll horizontally to a search result"); break; case 'N': tc->set_top(bm[&textview_curses::BM_SEARCH].prev(tc->get_top())); lnav_data.ld_rl_view->set_alt_value( "Press '" ANSI_BOLD(">") "' or '" ANSI_BOLD("<") "' to scroll horizontally to a search result"); break; case 'y': tc->set_top(bm[&BM_QUERY].next(tc->get_top())); break; case 'Y': tc->set_top(bm[&BM_QUERY].prev(tc->get_top())); break; case '>': { std::pair range; tc->horiz_shift(tc->get_top(), tc->get_bottom(), tc->get_left(), "$search", range); if (range.second != INT_MAX) { tc->set_left(range.second); lnav_data.ld_rl_view->set_alt_value( HELP_MSG_1(m, "to bookmark a line")); } else{ flash(); } } break; case '<': if (tc->get_left() == 0) { flash(); } else { std::pair range; tc->horiz_shift(tc->get_top(), tc->get_bottom(), tc->get_left(), "$search", range); if (range.first != -1) { tc->set_left(range.first); } else{ tc->set_left(0); } lnav_data.ld_rl_view->set_alt_value( HELP_MSG_1(m, "to bookmark a line")); } break; case 'f': if (tc == &lnav_data.ld_views[LNV_LOG]) { tc->set_top(bm[&logfile_sub_source::BM_FILES].next(tc->get_top())); } else if (tc == &lnav_data.ld_views[LNV_TEXT]) { textfile_sub_source &tss = lnav_data.ld_text_source; if (!tss.tss_files.empty()) { tss.tss_files.push_front(tss.tss_files.back()); tss.tss_files.pop_back(); change_text_file(); } } break; case 'F': if (tc == &lnav_data.ld_views[LNV_LOG]) { tc->set_top(bm[&logfile_sub_source::BM_FILES].prev(tc->get_top())); } else if (tc == &lnav_data.ld_views[LNV_TEXT]) { textfile_sub_source &tss = lnav_data.ld_text_source; if (!tss.tss_files.empty()) { tss.tss_files.push_back(tss.tss_files.front()); tss.tss_files.pop_front(); change_text_file(); } } break; case 'z': if (tc == &lnav_data.ld_views[LNV_HISTOGRAM]) { if ((lnav_data.ld_hist_zoom + 1) >= HIST_ZOOM_LEVELS) { flash(); } else { lnav_data.ld_hist_zoom += 1; rebuild_hist(0, true); } lnav_data.ld_rl_view->set_alt_value(HELP_MSG_1( I, "to switch to the log view at the top displayed time")); } break; case 'Z': if (tc == &lnav_data.ld_views[LNV_HISTOGRAM]) { if (lnav_data.ld_hist_zoom == 0) { flash(); } else { lnav_data.ld_hist_zoom -= 1; rebuild_hist(0, true); } lnav_data.ld_rl_view->set_alt_value(HELP_MSG_1( I, "to switch to the log view at the top displayed time")); } break; case 'u': tc->set_top(tc->get_bookmarks()[&textview_curses::BM_USER]. next(tc->get_top())); break; case 'U': tc->set_top(tc->get_bookmarks()[&textview_curses::BM_USER]. prev(tc->get_top())); break; case 'm': if (lss) { lnav_data.ld_last_user_mark[tc] = tc->get_top(); lss->toggle_user_mark(&textview_curses::BM_USER, vis_line_t(lnav_data.ld_last_user_mark[tc])); tc->reload_data(); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_2( u, U, "to move forward/backward through user bookmarks")); } break; case 'J': if (lss) { if (lnav_data.ld_last_user_mark.find(tc) == lnav_data.ld_last_user_mark.end() || !tc->is_visible(vis_line_t(lnav_data.ld_last_user_mark[tc]))) { lnav_data.ld_last_user_mark[tc] = tc->get_top(); } else { vis_line_t height; unsigned long width; tc->get_dimensions(height, width); if (lnav_data.ld_last_user_mark[tc] > tc->get_bottom() - 2 && tc->get_top() + height < tc->get_inner_height()) { tc->shift_top(vis_line_t(1)); } if (lnav_data.ld_last_user_mark[tc] + 1 >= tc->get_inner_height()) { break; } lnav_data.ld_last_user_mark[tc] += 1; } lss->toggle_user_mark(&textview_curses::BM_USER, vis_line_t(lnav_data.ld_last_user_mark[tc])); tc->reload_data(); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_1( c, "to copy marked lines to the clipboard")); } break; case 'K': if (lss) { int new_mark; if (lnav_data.ld_last_user_mark.find(tc) == lnav_data.ld_last_user_mark.end() || !tc->is_visible(vis_line_t(lnav_data.ld_last_user_mark[tc]))) { lnav_data.ld_last_user_mark[tc] = -1; new_mark = tc->get_top(); } else { new_mark = lnav_data.ld_last_user_mark[tc]; } lss->toggle_user_mark(&textview_curses::BM_USER, vis_line_t(new_mark)); if (new_mark == tc->get_top()) { tc->shift_top(vis_line_t(-1)); } if (new_mark > 0) { lnav_data.ld_last_user_mark[tc] = new_mark - 1; } else { lnav_data.ld_last_user_mark[tc] = new_mark; flash(); } tc->reload_data(); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_1( c, "to copy marked lines to the clipboard")); } break; case 'M': if (lss) { if (lnav_data.ld_last_user_mark.find(tc) == lnav_data.ld_last_user_mark.end()) { flash(); } else { int start_line = min( (int)tc->get_top(), lnav_data.ld_last_user_mark[tc] + 1); int end_line = max( (int)tc->get_top(), lnav_data.ld_last_user_mark[tc] - 1); lss->toggle_user_mark(&textview_curses::BM_USER, vis_line_t(start_line), vis_line_t(end_line)); tc->reload_data(); } } break; case 'S': { bookmark_vector::iterator iter; for (iter = bm[&textview_curses::BM_SEARCH].begin(); iter != bm[&textview_curses::BM_SEARCH].end(); ++iter) { lss->toggle_user_mark(&textview_curses::BM_USER, *iter); } lnav_data.ld_last_user_mark[tc] = -1; tc->reload_data(); } break; case '1': case '2': case '3': case '4': case '5': case '6': if (lss) { int ten_minute = (ch - '0') * 10 * 60; time_t hour = rounddown(lnav_data.ld_top_time + (60 * 60) - ten_minute + 1, 60 * 60); vis_line_t line = lss->find_from_time(hour + ten_minute); tc->set_top(line); } break; case '!': back_ten(1); break; case '@': back_ten(2); break; case '#': back_ten(3); break; case '$': back_ten(4); break; case '%': back_ten(5); break; case '^': back_ten(6); break; case '9': if (lss) { double tenth = ((double)tc->get_inner_height()) / 10.0; tc->shift_top(vis_line_t(tenth)); } break; case '(': if (lss) { double tenth = ((double)tc->get_inner_height()) / 10.0; tc->shift_top(vis_line_t(-tenth)); } break; case '0': if (lss) { time_t first_time = lnav_data.ld_top_time; int step = 24 * 60 * 60; vis_line_t line = lss->find_from_time(roundup(first_time, step)); tc->set_top(line); } break; case ')': if (lss) { time_t day = rounddown(lnav_data.ld_top_time, 24 * 60 * 60); vis_line_t line = lss->find_from_time(day); --line; tc->set_top(line); } break; case 'D': case 'O': if (tc->get_top() == 0) { flash(); } else if (lss) { int step = ch == 'D' ? (24 * 60 * 60) : (60 * 60); time_t top_time = lnav_data.ld_top_time; vis_line_t line = lss->find_from_time(top_time - step); if (line != 0) { --line; } tc->set_top(line); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_1(/, "to search")); } break; case 'd': case 'o': if (lss) { int step = ch == 'd' ? (24 * 60 * 60) : (60 * 60); vis_line_t line = lss->find_from_time(lnav_data.ld_top_time + step); tc->set_top(line); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_1(/, "to search")); } break; case 's': lnav_data.ld_log_source.toggle_scrub(); tc->reload_data(); break; case ':': if (lnav_data.ld_views[LNV_LOG].get_inner_height() > 0) { logfile_sub_source &lss = lnav_data.ld_log_source; textview_curses & log_view = lnav_data.ld_views[LNV_LOG]; content_line_t cl = lss.at(log_view.get_top()); logfile * lf = lss.find(cl); std::string line = lf->read_line( lf->begin() + cl); struct line_range body; string_attrs_t sa; std::vector line_values; lf->get_format()->annotate(line, sa, line_values); body = find_string_attr_range(sa, "body"); if (body.lr_end != -1) { line = line.substr(body.lr_start); } data_scanner ds(line); data_parser dp(&ds); dp.parse(); column_namer namer; lnav_data.ld_rl_view->clear_possibilities(LNM_COMMAND, "colname"); for (data_parser::element_list_t::iterator iter = dp.dp_pairs.begin(); iter != dp.dp_pairs.end(); ++iter) { std::string colname = dp.get_element_string( iter->e_sub_elements->front()); colname = namer.add_column(colname); lnav_data.ld_rl_view->add_possibility(LNM_COMMAND, "colname", colname); } } lnav_data.ld_mode = LNM_COMMAND; lnav_data.ld_rl_view->focus(LNM_COMMAND, ":"); lnav_data.ld_bottom_source.set_prompt("Enter an lnav command:"); break; case '/': lnav_data.ld_mode = LNM_SEARCH; lnav_data.ld_search_start_line = lnav_data.ld_view_stack.top()-> get_top(); lnav_data.ld_rl_view->focus(LNM_SEARCH, "/"); lnav_data.ld_bottom_source.set_prompt( "Enter a regular expression to search for:"); break; case ';': if (tc == &lnav_data.ld_views[LNV_LOG] || tc == &lnav_data.ld_views[LNV_DB]) { textview_curses &log_view = lnav_data.ld_views[LNV_LOG]; lnav_data.ld_mode = LNM_SQL; setup_logline_table(); lnav_data.ld_rl_view->focus(LNM_SQL, ";"); lnav_data.ld_bottom_source.update_loading(0, 0); lnav_data.ld_status[LNS_BOTTOM].do_update(); field_overlay_source *fos; fos = (field_overlay_source *)log_view.get_overlay_source(); fos->fos_active_prev = fos->fos_active; if (!fos->fos_active) { fos->fos_active = true; tc->reload_data(); } lnav_data.ld_bottom_source.set_prompt( "Enter an SQL query:"); } break; case 'p': field_overlay_source *fos; fos = (field_overlay_source *)lnav_data.ld_views[LNV_LOG]. get_overlay_source(); fos->fos_active = !fos->fos_active; tc->reload_data(); break; case 't': if (lnav_data.ld_text_source.current_file() == NULL) { flash(); lnav_data.ld_rl_view->set_value("No text files loaded"); } else if (toggle_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")); } break; case 'T': lnav_data.ld_log_source.toggle_time_offset(); tc->reload_data(); break; case 'i': if (toggle_view(&lnav_data.ld_views[LNV_HISTOGRAM])) { lnav_data.ld_rl_view->set_alt_value( HELP_MSG_2(z, Z, "to zoom in/out")); } else { lnav_data.ld_rl_view->set_alt_value(""); } break; case 'I': { time_t log_top = lnav_data.ld_top_time; time_t hist_top = lnav_data.ld_hist_source.value_for_row(tc->get_top()); if (toggle_view(&lnav_data.ld_views[LNV_HISTOGRAM])) { hist_source &hs = lnav_data.ld_hist_source; tc = lnav_data.ld_view_stack.top(); tc->set_top(hs.row_for_value(log_top)); } else { tc = &lnav_data.ld_views[LNV_LOG]; lss = &lnav_data.ld_log_source; tc->set_top(lss->find_from_time(hist_top)); tc->set_needs_update(); } } break; case 'g': toggle_view(&lnav_data.ld_views[LNV_GRAPH]); break; case '?': toggle_view(&lnav_data.ld_views[LNV_HELP]); break; case 'v': toggle_view(&lnav_data.ld_views[LNV_DB]); break; case 'V': { textview_curses *db_tc = &lnav_data.ld_views[LNV_DB]; db_label_source &dls = lnav_data.ld_db_rows; hist_source & hs = lnav_data.ld_db_source; if (toggle_view(db_tc)) { unsigned int lpc; for (lpc = 0; lpc < dls.dls_headers.size(); lpc++) { if (dls.dls_headers[lpc] != "log_line") { continue; } char linestr[64]; int line_number = (int)tc->get_top(); unsigned int row; snprintf(linestr, sizeof(linestr), "%d", line_number); for (row = 0; row < dls.dls_rows.size(); row++) { if (strcmp(dls.dls_rows[row][lpc].c_str(), linestr) == 0) { vis_line_t db_line(hs.row_for_value(row)); db_tc->set_top(db_line); db_tc->set_needs_update(); break; } } break; } } else { int db_row = hs.value_for_row(db_tc->get_top()); unsigned int lpc; for (lpc = 0; lpc < dls.dls_headers.size(); lpc++) { if (dls.dls_headers[lpc] != "log_line") { continue; } unsigned int line_number; tc = &lnav_data.ld_views[LNV_LOG]; if (sscanf(dls.dls_rows[db_row][lpc].c_str(), "%d", &line_number) && line_number < tc->listview_rows(*tc)) { tc->set_top(vis_line_t(line_number)); tc->set_needs_update(); } break; } } } break; case 'x': if (tc == &lnav_data.ld_views[LNV_LOG]) { lnav_data.ld_log_source.toggle_user_mark(&BM_EXAMPLE, vis_line_t(tc->get_top())); } break; case '\\': { vis_bookmarks &bm = tc->get_bookmarks(); string ex; for (bookmark_vector::iterator iter = bm[&BM_EXAMPLE].begin(); iter != bm[&BM_EXAMPLE].end(); ++iter) { string line; tc->get_sub_source()->text_value_for_line(*tc, *iter, line); ex += line + "\n"; } lnav_data.ld_views[LNV_EXAMPLE].set_sub_source(new plain_text_source( ex)); ensure_view(&lnav_data.ld_views[LNV_EXAMPLE]); } break; case 'r': lnav_data.ld_session_file_index = (lnav_data.ld_session_file_index + 1) % lnav_data.ld_session_file_names.size(); reset_session(); load_session(); rebuild_indexes(true); break; case 'R': if (lnav_data.ld_session_file_index == 0) { lnav_data.ld_session_file_index = lnav_data.ld_session_file_names.size() - 1; } else{ lnav_data.ld_session_file_index -= 1; } reset_session(); load_session(); rebuild_indexes(true); break; case KEY_CTRL_R: reset_session(); rebuild_indexes(true); lnav_data.ld_rl_view->set_alt_value(HELP_MSG_2( r, R, "to restore the next/previous session")); break; default: fprintf(stderr, "unhandled %d\n", ch); lnav_data.ld_rl_view->set_value("Unrecognized keystroke, press " ANSI_BOLD("?") " to view help"); flash(); break; } } static void handle_rl_key(int ch) { switch (ch) { case KEY_PPAGE: case KEY_NPAGE: handle_paging_key(ch); break; default: lnav_data.ld_rl_view->handle_key(ch); break; } } readline_context::command_map_t lnav_commands; string execute_command(string cmdline) { stringstream ss(cmdline); vector args; string buf, msg; while (ss >> buf) { args.push_back(buf); } if (args.size() > 0) { readline_context::command_map_t::iterator iter; if ((iter = lnav_commands.find(args[0])) == lnav_commands.end()) { msg = "error: unknown command - " + args[0]; } else { msg = iter->second(cmdline, args); } } return msg; } static void execute_file(string path) { ifstream cmd_file(path.c_str()); if (cmd_file.is_open()) { int line_number = 0; string line; while (getline(cmd_file, line)) { line_number += 1; if (line.empty()) { continue; } if (line[0] == '#') { continue; } string rc = execute_command(line); fprintf(stderr, "%s:%d:execute result -- %s\n", path.c_str(), line_number, rc.c_str()); } } } int sql_callback(sqlite3_stmt *stmt) { logfile_sub_source &lss = lnav_data.ld_log_source; db_label_source & dls = lnav_data.ld_db_rows; hist_source & hs = lnav_data.ld_db_source; int ncols = sqlite3_column_count(stmt); int row_number; int lpc, retval = 0; row_number = dls.dls_rows.size(); dls.dls_rows.resize(row_number + 1); if (dls.dls_headers.empty()) { for (lpc = 0; lpc < ncols; lpc++) { int type = sqlite3_column_type(stmt, lpc); string colname = sqlite3_column_name(stmt, lpc); bool graphable; graphable = ((type == SQLITE_INTEGER || type == SQLITE_FLOAT) && !binary_search(lnav_data.ld_db_key_names.begin(), lnav_data.ld_db_key_names.end(), colname)); dls.push_header(colname, type, graphable); if (graphable) { hs.set_role_for_type(bucket_type_t(lpc), view_colors::singleton(). next_plain_highlight()); } } } for (lpc = 0; lpc < ncols; lpc++) { const char *value = (const char *)sqlite3_column_text(stmt, lpc); double num_value = 0.0; if (value == NULL) { value = ""; } dls.push_column(value); if (dls.dls_headers[lpc] == "log_line") { int line_number = -1; if (sscanf(value, "%d", &line_number) == 1) { lss.text_mark(&BM_QUERY, line_number, true); } } if (dls.dls_headers_to_graph[lpc]) { sscanf(value, "%lf", &num_value); hs.add_value(row_number, bucket_type_t(lpc), num_value); } else { hs.add_empty_value(row_number); } } return retval; } void execute_search(lnav_view_t view, const std::string ®ex) { auto_ptr &gc = lnav_data.ld_search_child[view]; textview_curses & tc = lnav_data.ld_views[view]; if ((gc.get() == NULL) || (regex != lnav_data.ld_last_search[view])) { const char *errptr; pcre * code; int eoff; if (regex.empty() && gc.get() != NULL) { tc.grep_begin(*(gc->get_grep_proc())); tc.grep_end(*(gc->get_grep_proc())); } gc.reset(); fprintf(stderr, "start search for: %s\n", regex.c_str()); tc.match_reset(); if (regex.empty()) { lnav_data.ld_bottom_source.grep_error(""); } else if ((code = pcre_compile(regex.c_str(), PCRE_CASELESS, &errptr, &eoff, NULL)) == NULL) { lnav_data.ld_bottom_source. grep_error("regexp error: " + string(errptr)); } else { textview_curses::highlighter hl(code, false, view_colors::VCR_SEARCH); lnav_data.ld_bottom_source.set_prompt(""); textview_curses::highlight_map_t &hm = tc.get_highlights(); hm["$search"] = hl; auto_ptr gp(new grep_proc(code, tc, lnav_data.ld_max_fd, lnav_data.ld_read_fds)); gp->queue_request(grep_line_t(tc.get_top())); if (tc.get_top() > 0) { gp->queue_request(grep_line_t(0), grep_line_t(tc.get_top())); } gp->start(); gp->set_sink(lnav_data.ld_view_stack.top()); tc.set_follow_search(true); auto_ptr gh(new grep_highlighter(gp, "$search", hm)); gc = gh; } } lnav_data.ld_last_search[view] = regex; } static void rl_search(void *dummy, readline_curses *rc) { string name; switch (lnav_data.ld_mode) { case LNM_SEARCH: name = "$search"; break; case LNM_CAPTURE: assert(0); name = "$capture"; break; case LNM_COMMAND: return; case LNM_SQL: if (!sqlite3_complete(rc->get_value().c_str())) { lnav_data.ld_bottom_source. grep_error("sql error: incomplete statement"); } else { auto_mem stmt(sqlite3_finalize); int retcode; retcode = sqlite3_prepare_v2(lnav_data.ld_db, rc->get_value().c_str(), -1, stmt.out(), NULL); if (retcode != SQLITE_OK) { const char *errmsg = sqlite3_errmsg(lnav_data.ld_db); lnav_data.ld_bottom_source. grep_error(string("sql error: ") + string(errmsg)); } else { lnav_data.ld_bottom_source.grep_error(""); } } return; default: assert(0); break; } textview_curses *tc = lnav_data.ld_view_stack.top(); lnav_view_t index = (lnav_view_t)(tc - lnav_data.ld_views); tc->set_top(lnav_data.ld_search_start_line); execute_search(index, rc->get_value()); } static void rl_callback(void *dummy, readline_curses *rc) { lnav_data.ld_bottom_source.set_prompt(""); switch (lnav_data.ld_mode) { case LNM_PAGING: assert(0); break; case LNM_COMMAND: lnav_data.ld_mode = LNM_PAGING; rc->set_value(execute_command(rc->get_value())); rc->set_alt_value(""); break; case LNM_SEARCH: case LNM_CAPTURE: rl_search(dummy, rc); if (rc->get_value().size() > 0) { lnav_data.ld_view_stack.top()->set_follow_search(false); lnav_data.ld_rl_view-> add_possibility(LNM_COMMAND, "filter", rc->get_value()); rc->set_value("search: " + rc->get_value()); rc->set_alt_value(HELP_MSG_2( n, N, "to move forward/backward through search results")); } lnav_data.ld_mode = LNM_PAGING; break; case LNM_SQL: { db_label_source & dls = lnav_data.ld_db_rows; hist_source & hs = lnav_data.ld_db_source; auto_mem stmt(sqlite3_finalize); int retcode; lnav_data.ld_bottom_source.grep_error(""); hs.clear(); dls.clear(); retcode = sqlite3_prepare_v2(lnav_data.ld_db.in(), rc->get_value().c_str(), -1, stmt.out(), NULL); if (retcode != SQLITE_OK) { const char *errmsg = sqlite3_errmsg(lnav_data.ld_db); rc->set_value(errmsg); rc->set_alt_value(""); } else if (stmt == NULL) { rc->set_value(""); rc->set_alt_value(""); } else { bool done = false; lnav_data.ld_log_source.text_clear_marks(&BM_QUERY); while (!done) { retcode = sqlite3_step(stmt.in()); switch (retcode) { case SQLITE_OK: case SQLITE_DONE: done = true; break; case SQLITE_ROW: sql_callback(stmt.in()); break; default: { const char *errmsg; fprintf(stderr, "code %d\n", retcode); errmsg = sqlite3_errmsg(lnav_data.ld_db); rc->set_value(errmsg); done = true; } break; } } if (retcode == SQLITE_DONE) { hs.analyze(); lnav_data.ld_views[LNV_LOG].reload_data(); lnav_data.ld_views[LNV_DB].reload_data(); lnav_data.ld_views[LNV_DB].set_left(0); if (dls.dls_rows.size() > 0) { char row_count[32]; ensure_view(&lnav_data.ld_views[LNV_DB]); snprintf(row_count, sizeof(row_count), ANSI_BOLD("%'d") " row(s) matched", (int)dls.dls_rows.size()); rc->set_value(row_count); rc->set_alt_value(HELP_MSG_2( y, Y, "to move forward/backward through query results " "in the log view")); } else { rc->set_value("No rows matched"); rc->set_alt_value(""); } } lnav_data.ld_bottom_source.update_loading(0, 0); lnav_data.ld_status[LNS_BOTTOM].do_update(); } field_overlay_source *fos; fos = (field_overlay_source *)lnav_data.ld_views[LNV_LOG]. get_overlay_source(); fos->fos_active = fos->fos_active_prev; lnav_data.ld_views[LNV_LOG].reload_data(); } lnav_data.ld_mode = LNM_PAGING; break; } curs_set(0); } static void usage(void) { const char *usage_msg = "usage: %s [-hVsar] [logfile1 logfile2 ...]\n" "\n" "A curses-based log file viewer that indexes log messages by type\n" "and time to make it easier to navigate through files quickly.\n" "\n" "Key bindings:\n" " ? View/leave the online help text.\n" " q Quit the program.\n" "\n" "Options:\n" " -h Print this message, then exit.\n" " -d file Write debug messages to the given file.\n" " -V Print version information.\n" " -s Load the most recent syslog messages file.\n" " -a Load all of the most recent log file types.\n" " -r Load older rotated log files as well.\n" " -t Prepend timestamps to the lines of data being read in\n" " on the standard input.\n" " -w file Write the contents of the standard input to this file.\n" "\n" "Optional arguments:\n" " logfile1 The log files or directories to view. If a\n" " directory is given, all of the files in the\n" " directory will be loaded.\n" "\n" "Examples:\n" " To load and follow the syslog file:\n" " $ lnav -s\n" "\n" " To load all of the files in /var/log:\n" " $ lnav /var/log\n" "\n" " To watch the output of make with timestamps prepended:\n" " $ make 2>&1 | lnav -t\n" "\n" "Version: " PACKAGE_STRING "\n"; fprintf(stderr, usage_msg, lnav_data.ld_program_name); } static pcre *xpcre_compile(const char *pattern, int options = 0) { const char *errptr; pcre * retval; int eoff; if ((retval = pcre_compile(pattern, options, &errptr, &eoff, NULL)) == NULL) { fprintf(stderr, "internal error: failed to compile -- %s\n", pattern); fprintf(stderr, "internal error: %s\n", errptr); exit(1); } return retval; } /** * Callback used to keep track of the timestamps for the top and bottom lines * in the log view. This function is intended to be used as the callback * function in a view_action. * * @param lv The listview object that contains the log */ static void update_times(void *, listview_curses *lv) { if (lv == &lnav_data.ld_views[LNV_LOG] && lv->get_inner_height() > 0) { logfile_sub_source &lss = lnav_data.ld_log_source; lnav_data.ld_top_time = lss.find_line(lss.at(lv->get_top()))->get_time(); lnav_data.ld_bottom_time = lss.find_line(lss.at(lv->get_bottom()))->get_time(); } if (lv == &lnav_data.ld_views[LNV_HISTOGRAM] && lv->get_inner_height() > 0) { hist_source &hs = lnav_data.ld_hist_source; lnav_data.ld_top_time = hs.value_for_row(lv->get_top()); lnav_data.ld_bottom_time = hs.value_for_row(lv->get_bottom()); } } /** * Functor used to compare files based on their device and inode number. */ struct same_file { same_file(const struct stat &stat) : sf_stat(stat) { }; /** * Compare the given log file against the 'stat' given in the constructor. * @param lf The log file to compare. * @return True if the dev/inode values in the stat given in the * constructor matches the stat in the logfile object. */ bool operator()(const logfile *lf) const { return this->sf_stat.st_dev == lf->get_stat().st_dev && this->sf_stat.st_ino == lf->get_stat().st_ino; }; const struct stat &sf_stat; }; /** * Try to load the given file as a log file. If the file has not already been * loaded, it will be loaded. If the file has already been loaded, the file * name will be updated. * * @param filename The file name to check. * @param fd An already-opened descriptor for 'filename'. * @param required Specifies whether or not the file must exist and be valid. */ static void watch_logfile(string filename, int fd, bool required) { list::iterator file_iter; struct stat st; int rc; if (fd != -1) { rc = fstat(fd, &st); } else { rc = stat(filename.c_str(), &st); } if (rc == 0) { if (!S_ISREG(st.st_mode)) { if (required) { rc = -1; errno = EINVAL; } else { return; } } } if (rc == -1) { if (required) { throw logfile::error(filename, errno); } else{ return; } } file_iter = find_if(lnav_data.ld_files.begin(), lnav_data.ld_files.end(), same_file(st)); if (file_iter == lnav_data.ld_files.end()) { if (find(lnav_data.ld_other_files.begin(), lnav_data.ld_other_files.end(), filename) == lnav_data.ld_other_files.end()) { file_format_t ff = detect_file_format(filename); switch (ff) { case FF_SQLITE_DB: lnav_data.ld_other_files.push_back(filename); attach_sqlite_db(lnav_data.ld_db.in(), filename); break; default: /* It's a new file, load it in. */ logfile *lf = new logfile(filename, fd); lnav_data.ld_files.push_back(lf); lnav_data.ld_text_source.tss_files.push_back(lf); break; } } } else { /* The file is already loaded, but has been found under a different * name. We just need to update the stored file name. */ (*file_iter)->set_filename(filename); } } /** * Expand a glob pattern and call watch_logfile with the file names that match * the pattern. * @param path The glob pattern to expand. * @param required Passed to watch_logfile. */ static void expand_filename(string path, bool required) { static_root_mem gl; if (glob(path.c_str(), GLOB_NOCHECK, NULL, gl.inout()) == 0) { int lpc; if (gl->gl_pathc == 1 /*&& gl.gl_matchc == 0*/) { /* It's a pattern that doesn't match any files * yet, allow it through since we'll load it in * dynamically. */ required = false; } if (gl->gl_pathc > 1 || strcmp(path.c_str(), gl->gl_pathv[0]) != 0) { required = false; } for (lpc = 0; lpc < (int)gl->gl_pathc; lpc++) { watch_logfile(gl->gl_pathv[lpc], -1, required); } } } static bool rescan_files(bool required = false) { set >::iterator iter; list::iterator file_iter; bool retval = false; for (iter = lnav_data.ld_file_names.begin(); iter != lnav_data.ld_file_names.end(); iter++) { if (iter->second == -1) { expand_filename(iter->first, required); if (lnav_data.ld_flags & LNF_ROTATED) { string path = iter->first + ".*"; expand_filename(path, false); } } else { watch_logfile(iter->first, iter->second, required); } } for (file_iter = lnav_data.ld_files.begin(); file_iter != lnav_data.ld_files.end(); ) { if (!(*file_iter)->exists()) { std::list::iterator tss_iter; fprintf(stderr, "file has been deleted -- %s\n", (*file_iter)->get_filename().c_str()); lnav_data.ld_log_source.remove_file(*file_iter); file_iter = lnav_data.ld_files.erase(file_iter); tss_iter = find(lnav_data.ld_text_source.tss_files.begin(), lnav_data.ld_text_source.tss_files.end(), *file_iter); if (tss_iter != lnav_data.ld_text_source.tss_files.end()) { lnav_data.ld_text_source.tss_files.erase(tss_iter); } retval = true; } else { ++file_iter; } } return retval; } class lnav_behavior : public mouse_behavior { public: enum lb_mode_t { LB_MODE_NONE, LB_MODE_DOWN, LB_MODE_UP, LB_MODE_DRAG }; lnav_behavior() : lb_selection_start(-1), lb_selection_last(-1), lb_scrollbar_y(-1), lb_scroll_repeat(0), lb_mode(LB_MODE_NONE) {}; int scroll_polarity(int button) { return button == xterm_mouse::XT_SCROLL_UP ? -1 : 1; }; void mouse_event(int button, int x, int y) { logfile_sub_source *lss = NULL; textview_curses * tc = lnav_data.ld_view_stack.top(); vis_line_t vis_y(tc->get_top() + y - 2); struct timeval now, diff; unsigned long width; vis_line_t height; tc->get_dimensions(height, width); gettimeofday(&now, NULL); timersub(&now, &this->lb_last_event_time, &diff); this->lb_last_event_time = now; lss = dynamic_cast(tc->get_sub_source()); switch (button) { case xterm_mouse::XT_BUTTON1: if (this->lb_selection_start == vis_line_t(-1) && tc->get_inner_height() && ((this->lb_scrollbar_y != -1) || (x >= (int)(width - 2)))) { double top_pct, bot_pct, pct; int scroll_top, scroll_bottom, shift_amount = 0, new_top = 0; top_pct = (double)tc->get_top() / (double)tc->get_inner_height(); bot_pct = (double)tc->get_bottom() / (double)tc->get_inner_height(); scroll_top = (tc->get_y() + (int)(top_pct * (double)height)); scroll_bottom = (tc->get_y() + (int)(bot_pct * (double)height)); if (this->lb_mode == LB_MODE_NONE) { if (scroll_top <= y && y <= scroll_bottom) { this->lb_mode = LB_MODE_DRAG; this->lb_scrollbar_y = y - scroll_top; } else if (y < scroll_top) { this->lb_mode = LB_MODE_UP; } else { this->lb_mode = LB_MODE_DOWN; } } switch (this->lb_mode) { case LB_MODE_NONE: assert(0); break; case LB_MODE_UP: if (y < scroll_top) { shift_amount = -1 * height; } break; case LB_MODE_DOWN: if (y > scroll_bottom) { shift_amount = height; } break; case LB_MODE_DRAG: pct = (double)tc->get_inner_height() / (double)height; new_top = y - tc->get_y() - this->lb_scrollbar_y; new_top = (int)floor(((double)new_top * pct) + 0.5); tc->set_top(vis_line_t(new_top)); break; } if (shift_amount != 0) { tc->shift_top(vis_line_t(shift_amount)); } return; } if (lss) { if (this->lb_selection_start == vis_line_t(-1)) { this->lb_selection_start = vis_y; this->lb_selection_last = vis_line_t(-1); } else { if (this->lb_selection_last != vis_line_t(-1)) { lss->toggle_user_mark(&textview_curses::BM_USER, this->lb_selection_start, this->lb_selection_last); } if (this->lb_selection_start == vis_y) { this->lb_selection_last = vis_line_t(-1); } else { lss->toggle_user_mark(&textview_curses::BM_USER, this->lb_selection_start, vis_y); this->lb_selection_last = vis_y; } } tc->reload_data(); } break; case xterm_mouse::XT_BUTTON_RELEASE: this->lb_mode = LB_MODE_NONE; this->lb_scrollbar_y = -1; this->lb_selection_start = vis_line_t(-1); break; case xterm_mouse::XT_SCROLL_UP: case xterm_mouse::XT_SCROLL_DOWN: if (this->lb_scroll_repeat || (diff.tv_sec == 0 && diff.tv_usec < 30000)) { if (this->lb_scroll_repeat) { struct timeval scroll_diff; timersub(&now, &this->lb_last_scroll_time, &scroll_diff); if (scroll_diff.tv_usec > 50000) { tc->shift_top(vis_line_t(this->scroll_polarity(button) * this->lb_scroll_repeat), true); this->lb_scroll_repeat = 0; } else { this->lb_scroll_repeat += 1; } } else { this->lb_scroll_repeat = 1; this->lb_last_scroll_time = now; tc->shift_top(vis_line_t(this->scroll_polarity( button)), true); } } else { tc->shift_top(vis_line_t(this->scroll_polarity(button)), true); } break; } }; private: struct timeval lb_last_event_time; vis_line_t lb_selection_start; vis_line_t lb_selection_last; int lb_scrollbar_y; struct timeval lb_last_scroll_time; int lb_scroll_repeat; lb_mode_t lb_mode; }; static void looper(void) { int fd; fd = open(lnav_data.ld_debug_log_name, O_WRONLY | O_CREAT | O_APPEND, 0666); dup2(fd, STDERR_FILENO); close(fd); fprintf(stderr, "startup\n"); try { readline_context command_context("cmd", &lnav_commands); readline_context search_context("search"); readline_context index_context("capture"); readline_context sql_context("sql", NULL, false); textview_curses *tc; readline_curses rlc; int lpc; listview_curses::action::broadcaster &sb = lnav_data.ld_scroll_broadcaster; rlc.add_context(LNM_COMMAND, command_context); rlc.add_context(LNM_SEARCH, search_context); rlc.add_context(LNM_CAPTURE, index_context); rlc.add_context(LNM_SQL, sql_context); rlc.start(); lnav_data.ld_rl_view = &rlc; lnav_data.ld_rl_view-> add_possibility(LNM_COMMAND, "graph", "\\d+(?:\\.\\d+)?"); lnav_data.ld_rl_view-> add_possibility(LNM_COMMAND, "graph", "([:= \\t]\\d+(?:\\.\\d+)?)"); (void)signal(SIGINT, sigint); (void)signal(SIGTERM, sigint); (void)signal(SIGWINCH, sigwinch); screen_curses sc; xterm_mouse mouse; lnav_behavior lb; mouse.set_enabled(check_experimental("mouse")); mouse.set_behavior(&lb); lnav_data.ld_window = sc.get_window(); keypad(stdscr, TRUE); (void)nonl(); (void)cbreak(); (void)noecho(); (void)nodelay(lnav_data.ld_window, 1); define_key("\033Od", KEY_BEG); define_key("\033Oc", KEY_END); view_colors::singleton().init(); rlc.set_window(lnav_data.ld_window); rlc.set_y(-1); rlc.set_perform_action(readline_curses::action(rl_callback)); rlc.set_timeout_action(readline_curses::action(rl_search)); rlc.set_alt_value(HELP_MSG_2( e, E, "to move forward/backward through error messages")); (void)curs_set(0); lnav_data.ld_view_stack.push(&lnav_data.ld_views[LNV_LOG]); update_view_name(); tc = lnav_data.ld_view_stack.top(); 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(1); lnav_data.ld_views[lpc]. set_height(vis_line_t(-(rlc.get_height() + 1 + 1))); lnav_data.ld_views[lpc]. set_scroll_action(sb.get_functor()); lnav_data.ld_views[lpc]. set_search_action(&lnav_data.ld_bottom_source.hits_wire); } lnav_data.ld_status[LNS_TOP].set_top(0); for (lpc = 0; lpc < LNS__MAX; lpc++) { lnav_data.ld_status[lpc].set_window(lnav_data.ld_window); } lnav_data.ld_status[LNS_TOP]. set_data_source(&lnav_data.ld_top_source); lnav_data.ld_status[LNS_BOTTOM]. set_data_source(&lnav_data.ld_bottom_source); sb.push_back(view_action(update_times)); sb.push_back(&lnav_data.ld_top_source.filename_wire); sb.push_back(&lnav_data.ld_bottom_source.line_number_wire); sb.push_back(&lnav_data.ld_bottom_source.percent_wire); sb.push_back(&lnav_data.ld_bottom_source.marks_wire); { vis_line_t top(0), height(0); unsigned long width; tc->get_dimensions(height, width); top = vis_line_t(tc->get_inner_height()) - height + vis_line_t(1); if (top > 0) { tc->set_top(top); } } { hist_source &hs = lnav_data.ld_hist_source; lnav_data.ld_hist_zoom = 2; hs.set_role_for_type(bucket_type_t(logline::LEVEL_FATAL), view_colors::VCR_ERROR); hs.set_role_for_type(bucket_type_t(logline::LEVEL_CRITICAL), view_colors::VCR_ERROR); hs.set_role_for_type(bucket_type_t(logline::LEVEL_ERROR), view_colors::VCR_ERROR); hs.set_role_for_type(bucket_type_t(logline::LEVEL_WARNING), view_colors::VCR_WARNING); hs.set_label_source(new time_label_source()); } { hist_source &hs = lnav_data.ld_graph_source; hs.set_bucket_size(1); hs.set_group_size(100); } { hist_source &hs = lnav_data.ld_db_source; hs.set_bucket_size(1); hs.set_group_size(10); hs.set_label_source(&lnav_data.ld_db_rows); } FD_ZERO(&lnav_data.ld_read_fds); FD_SET(STDIN_FILENO, &lnav_data.ld_read_fds); lnav_data.ld_max_fd = max(STDIN_FILENO, rlc.update_fd_set(lnav_data.ld_read_fds)); lnav_data.ld_status[0].window_change(); lnav_data.ld_status[1].window_change(); execute_file(dotlnav_path("session")); lnav_data.ld_scroll_broadcaster.invoke(lnav_data.ld_view_stack.top()); bool session_loaded = false; while (lnav_data.ld_looping) { fd_set ready_rfds = lnav_data.ld_read_fds; struct timeval to = { 0, 330000 }; int rc; lnav_data.ld_top_source.update_time(); if (rescan_files()) { rebuild_indexes(true); } for (lpc = 0; lpc < LNV__MAX; lpc++) { lnav_data.ld_views[lpc] .set_height(vis_line_t(-(rlc.get_height() + 1))); } lnav_data.ld_status[LNS_BOTTOM].set_top(-(rlc.get_height() + 1)); lnav_data.ld_view_stack.top()->do_update(); lnav_data.ld_status[LNS_TOP].do_update(); lnav_data.ld_status[LNS_BOTTOM].do_update(); rlc.do_update(); refresh(); rc = select(lnav_data.ld_max_fd + 1, &ready_rfds, NULL, NULL, &to); if (rc < 0) { switch (errno) { case EINTR: break; default: fprintf(stderr, "select %s\n", strerror(errno)); lnav_data.ld_looping = false; break; } } else if (rc == 0) { static bool initial_build = false; rebuild_indexes(false); if (!initial_build && lnav_data.ld_log_source.text_line_count() == 0 && lnav_data.ld_text_source.text_line_count() > 0) { toggle_view(&lnav_data.ld_views[LNV_TEXT]); lnav_data.ld_views[LNV_TEXT].set_top(vis_line_t(0)); lnav_data.ld_rl_view->set_alt_value( HELP_MSG_2(f, F, "to switch to the next/previous file")); } initial_build = true; if (!session_loaded) { load_session(); if (!lnav_data.ld_session_file_names.empty()) { std::string ago; ago = time_ago(lnav_data.ld_session_save_time); lnav_data.ld_rl_view->set_value( ("restored session from " ANSI_BOLD_START) + ago + (ANSI_NORM "; press Ctrl-R to reset session")); } rebuild_indexes(true); session_loaded = true; } } else { if (FD_ISSET(STDIN_FILENO, &ready_rfds)) { int ch; while ((ch = getch()) != ERR) { switch (ch) { case CEOF: case KEY_RESIZE: break; case KEY_MOUSE: mouse.handle_mouse(ch); break; default: switch (lnav_data.ld_mode) { case LNM_PAGING: handle_paging_key(ch); break; case LNM_COMMAND: case LNM_SEARCH: case LNM_CAPTURE: case LNM_SQL: handle_rl_key(ch); break; default: assert(0); break; } break; } } } for (lpc = 0; lpc < LG__MAX; lpc++) { auto_ptr &gc = lnav_data.ld_grep_child[lpc]; if (gc.get() != NULL) { gc->get_grep_proc()->check_fd_set(ready_rfds); if (lpc == LG_GRAPH) { lnav_data.ld_views[LNV_GRAPH].reload_data(); /* XXX */ } } } for (lpc = 0; lpc < LNV__MAX; lpc++) { auto_ptr &gc = lnav_data.ld_search_child[lpc]; if (gc.get() != NULL) { gc->get_grep_proc()->check_fd_set(ready_rfds); if (!lnav_data.ld_view_stack.empty()) { lnav_data.ld_bottom_source. update_hits(lnav_data.ld_view_stack.top()); } } } rlc.check_fd_set(ready_rfds); } if (lnav_data.ld_winched) { struct winsize size; fprintf(stderr, "WINCHED\n"); if (ioctl(fileno(stdout), TIOCGWINSZ, &size) == 0) { resizeterm(size.ws_row, size.ws_col); } rlc.window_change(); lnav_data.ld_status[0].window_change(); lnav_data.ld_status[1].window_change(); lnav_data.ld_view_stack.top()->set_needs_update(); lnav_data.ld_winched = false; } } } catch (readline_curses::error & e) { fprintf(stderr, "error: %s\n", strerror(e.e_err)); } } class access_log_table : public log_vtab_impl { public: access_log_table() : log_vtab_impl("access_log") {}; void get_columns(vector &cols) { cols.push_back(vtab_column("c_ip", SQLITE3_TEXT, "ipaddress")); cols.push_back(vtab_column("cs_username", SQLITE3_TEXT)); cols.push_back(vtab_column("cs_method", SQLITE3_TEXT)); cols.push_back(vtab_column("cs_uri_stem", SQLITE3_TEXT)); cols.push_back(vtab_column("cs_uri_query", SQLITE3_TEXT)); cols.push_back(vtab_column("cs_version", SQLITE3_TEXT)); cols.push_back(vtab_column("sc_status", SQLITE_INTEGER)); cols.push_back(vtab_column("sc_bytes", SQLITE_INTEGER)); cols.push_back(vtab_column("cs_referer", SQLITE3_TEXT)); cols.push_back(vtab_column("cs_user_agent", SQLITE3_TEXT)); }; void get_foreign_keys(vector &keys_inout) { this->log_vtab_impl::get_foreign_keys(keys_inout); keys_inout.push_back("sc_status"); }; }; class syslog_log_table : public log_vtab_impl { public: syslog_log_table() : log_vtab_impl("syslog_log") {}; void get_columns(vector &cols) { cols.push_back(vtab_column("log_hostname", SQLITE3_TEXT)); cols.push_back(vtab_column("log_pid", SQLITE_INTEGER)); }; void get_foreign_keys(vector &keys_inout) { this->log_vtab_impl::get_foreign_keys(keys_inout); keys_inout.push_back("log_pid"); }; }; class glog_log_table : public log_vtab_impl { public: glog_log_table() : log_vtab_impl("glog_log") {}; void get_columns(vector &cols) { cols.push_back(vtab_column("micros", SQLITE_INTEGER)); cols.push_back(vtab_column("thread", SQLITE3_TEXT)); cols.push_back(vtab_column("src_file", SQLITE3_TEXT)); cols.push_back(vtab_column("src_line", SQLITE_TEXT)); cols.push_back(vtab_column("message", SQLITE3_TEXT)); }; }; class strace_log_table : public log_vtab_impl { public: strace_log_table() : log_vtab_impl("strace_log") {}; void get_columns(vector &cols) { cols.push_back(vtab_column("funcname", SQLITE_TEXT)); cols.push_back(vtab_column("args", SQLITE_TEXT)); cols.push_back(vtab_column("result", SQLITE_TEXT)); cols.push_back(vtab_column("duration", SQLITE_TEXT)); #if 0 cols.push_back(vtab_column("arg0", SQLITE_TEXT)); cols.push_back(vtab_column("arg1", SQLITE_TEXT)); cols.push_back(vtab_column("arg2", SQLITE_TEXT)); cols.push_back(vtab_column("arg3", SQLITE_TEXT)); cols.push_back(vtab_column("arg4", SQLITE_TEXT)); cols.push_back(vtab_column("arg5", SQLITE_TEXT)); cols.push_back(vtab_column("arg6", SQLITE_TEXT)); cols.push_back(vtab_column("arg7", SQLITE_TEXT)); cols.push_back(vtab_column("arg8", SQLITE_TEXT)); cols.push_back(vtab_column("arg9", SQLITE_TEXT)); #endif }; #if 0 void extract(logfile *lf, const std::string &line, int column, sqlite3_context *ctx) { string function, args, result, duration = "0"; if (!this->slt_regex.FullMatch(line, &function, &args, &result, &duration)) { fprintf(stderr, "bad match! %s\n", line.c_str()); } switch (column) { case 0: sqlite3_result_text(ctx, function.c_str(), function.length(), SQLITE_TRANSIENT); break; case 1: sqlite3_result_text(ctx, result.c_str(), result.length(), SQLITE_TRANSIENT); break; case 2: sqlite3_result_text(ctx, duration.c_str(), duration.length(), SQLITE_TRANSIENT); break; default: { const char *arg_start = args.c_str(); int in_struct = 0, in_list = 0; int lpc, argnum, curarg = 0; bool in_quote = false; argnum = column - 3; for (lpc = 0; lpc < (int)args.length(); lpc++) { switch (args[lpc]) { case '{': if (!in_quote) { in_struct += 1; } break; case '}': if (!in_quote) { in_struct -= 1; } break; case '[': if (!in_quote) { in_list += 1; } break; case ']': if (!in_quote) { in_list -= 1; } break; case '"': if (!in_quote) { in_quote = true; } else if (lpc > 0 && args[lpc - 1] != '\\') { in_quote = false; } break; case ',': if (!in_quote && !in_struct && !in_list) { if (curarg == argnum) { sqlite3_result_text(ctx, arg_start, &(args.c_str()[lpc]) - arg_start, SQLITE_TRANSIENT); return; } curarg += 1; arg_start = &(args.c_str()[lpc + 1]); } break; } } if (curarg == argnum) { sqlite3_result_text(ctx, arg_start, &(args.c_str()[lpc]) - arg_start, SQLITE_TRANSIENT); } else { sqlite3_result_text(ctx, "", 0, SQLITE_TRANSIENT); } } break; } }; private: pcrecpp::RE slt_regex; #endif }; static void setup_highlights(textview_curses::highlight_map_t &hm) { hm["$sql"] = textview_curses:: highlighter(xpcre_compile( "(?: alter | select | insert | update " "| create " "| from | where | order by " "| group by )", PCRE_CASELESS)); hm["$srcfile"] = textview_curses:: highlighter(xpcre_compile( "[\\w\\-_]+\\." "(?:java|a|o|so|c|cc|cpp|cxx|h|hh|hpp|hxx|py|pyc|rb):" "\\d+")); hm["$xml"] = textview_curses:: highlighter(xpcre_compile("<(/?[^ >]+)[^>]*>")); hm["$stringd"] = textview_curses:: highlighter(xpcre_compile("\"(?:\\\\.|[^\"])*\"")); hm["$strings"] = textview_curses:: highlighter(xpcre_compile( "(? stdin_reader; const char * stdin_out = NULL; setlocale(LC_NUMERIC, ""); /* 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", 0); ensure_dotlnav(); 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()); } lnav_data.ld_program_name = argv[0]; lnav_data.ld_vtab_manager = new log_vtab_manager(lnav_data.ld_db, lnav_data.ld_log_source, sql_progress); { auto_mem errmsg; if (sqlite3_exec(lnav_data.ld_db.in(), init_sql, NULL, NULL, errmsg.out()) != SQLITE_OK) { fprintf(stderr, "error: unable to execute DB init -- %s\n", errmsg.in()); } } lnav_data.ld_vtab_manager->register_vtab(new syslog_log_table()); lnav_data.ld_vtab_manager->register_vtab(new log_vtab_impl("generic_log")); lnav_data.ld_vtab_manager->register_vtab(new access_log_table()); lnav_data.ld_vtab_manager->register_vtab(new glog_log_table()); lnav_data.ld_vtab_manager->register_vtab(new strace_log_table()); DEFAULT_FILES.insert(make_pair(LNF_SYSLOG, string("var/log/messages"))); DEFAULT_FILES.insert(make_pair(LNF_SYSLOG, string("var/log/system.log"))); DEFAULT_FILES.insert(make_pair(LNF_SYSLOG, string("var/log/syslog"))); DEFAULT_FILES.insert(make_pair(LNF_SYSLOG, string("var/log/syslog.log"))); init_lnav_commands(lnav_commands); lnav_data.ld_views[LNV_HELP]. set_sub_source(new plain_text_source(help_txt)); lnav_data.ld_views[LNV_LOG]. set_sub_source(&lnav_data.ld_log_source); 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_source); lnav_data.ld_views[LNV_GRAPH]. set_sub_source(&lnav_data.ld_graph_source); lnav_data.ld_views[LNV_DB]. set_sub_source(&lnav_data.ld_db_source); lnav_data.ld_db_overlay.dos_labels = &lnav_data.ld_db_rows; lnav_data.ld_views[LNV_DB]. set_overlay_source(&lnav_data.ld_db_overlay); lnav_data.ld_views[LNV_LOG]. set_overlay_source(new field_overlay_source()); lnav_data.ld_db_overlay.dos_hist_source = &lnav_data.ld_db_source; { setup_highlights(lnav_data.ld_views[LNV_LOG].get_highlights()); setup_highlights(lnav_data.ld_views[LNV_TEXT].get_highlights()); } lnav_data.ld_looping = true; lnav_data.ld_mode = LNM_PAGING; lnav_data.ld_debug_log_name = "/dev/null"; while ((c = getopt(argc, argv, "harsd:tw:V")) != -1) { switch (c) { case 'h': usage(); exit(retval); break; case 'd': lnav_data.ld_debug_log_name = optarg; break; case 'a': lnav_data.ld_flags |= LNF__ALL; break; case 'r': lnav_data.ld_flags |= LNF_ROTATED; break; case 's': lnav_data.ld_flags |= LNF_SYSLOG; break; case 't': lnav_data.ld_flags |= LNF_TIMESTAMP; break; case 'w': stdin_out = optarg; break; case 'V': printf("%s\n", PACKAGE_STRING); exit(0); break; default: retval = EXIT_FAILURE; break; } } argc -= optind; argv += optind; if (isatty(STDIN_FILENO) && argc == 0 && !(lnav_data.ld_flags & LNF__ALL)) { lnav_data.ld_flags |= LNF_SYSLOG; } if (lnav_data.ld_flags != 0) { char start_dir[FILENAME_MAX]; if (getcwd(start_dir, sizeof(start_dir)) == NULL) { perror("getcwd"); } else { do { for (lpc = 0; lpc < LNB__MAX; lpc++) { if (!append_default_files((lnav_flags_t)(1L << lpc))) { retval = EXIT_FAILURE; } } } while (lnav_data.ld_file_names.empty() && change_to_parent_dir()); if (chdir(start_dir) == -1) { perror("chdir(start_dir)"); } } } for (lpc = 0; lpc < argc; lpc++) { auto_mem abspath; struct stat st; if (stat(argv[lpc], &st) == -1) { fprintf(stderr, "Cannot stat file: %s -- %s\n", argv[lpc], strerror(errno)); retval = EXIT_FAILURE; } else if ((abspath = realpath(argv[lpc], NULL)) == NULL) { perror("Cannot find file"); retval = EXIT_FAILURE; } else if (S_ISDIR(st.st_mode)) { string dir_wild(abspath.in()); if (dir_wild[dir_wild.size() - 1] == '/') { dir_wild.resize(dir_wild.size() - 1); } lnav_data.ld_file_names.insert(make_pair(dir_wild + "/*", -1)); } else { lnav_data.ld_file_names.insert(make_pair(abspath.in(), -1)); } } if (!isatty(STDOUT_FILENO)) { fprintf(stderr, "error: stdout is not a tty.\n"); retval = EXIT_FAILURE; } if (!isatty(STDIN_FILENO)) { stdin_reader = auto_ptr(new piper_proc(STDIN_FILENO, lnav_data.ld_flags & LNF_TIMESTAMP, stdin_out)); lnav_data.ld_file_names.insert(make_pair("stdin", stdin_reader->get_fd())); if (dup2(STDOUT_FILENO, STDIN_FILENO) == -1) { perror("cannot dup stdout to stdin"); } } if (lnav_data.ld_file_names.empty()) { fprintf(stderr, "error: no log files given/found.\n"); retval = EXIT_FAILURE; } if (retval != EXIT_SUCCESS) { usage(); } else { try { rescan_files(true); init_session(); scan_sessions(); guard_termios gt(STDIN_FILENO); looper(); save_session(); } catch (line_buffer::error & e) { fprintf(stderr, "error: %s\n", strerror(e.e_err)); } catch (logfile::error & e) { if (e.e_err != EINTR) { fprintf(stderr, "error: %s -- '%s'\n", strerror(e.e_err), e.e_filename.c_str()); } } } return retval; }