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-rw-r--r--src/readline_possibilities.cc496
1 files changed, 496 insertions, 0 deletions
diff --git a/src/readline_possibilities.cc b/src/readline_possibilities.cc
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+/**
+ * Copyright (c) 2015, 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.
+ */
+
+#include <regex>
+#include <string>
+
+#include "readline_possibilities.hh"
+
+#include "base/isc.hh"
+#include "base/opt_util.hh"
+#include "config.h"
+#include "data_parser.hh"
+#include "lnav.hh"
+#include "lnav_config.hh"
+#include "service_tags.hh"
+#include "session_data.hh"
+#include "sql_help.hh"
+#include "sql_util.hh"
+#include "sqlite-extension-func.hh"
+#include "sysclip.hh"
+#include "tailer/tailer.looper.hh"
+#include "yajlpp/yajlpp_def.hh"
+
+static int
+handle_collation_list(void* ptr, int ncols, char** colvalues, char** colnames)
+{
+ if (lnav_data.ld_rl_view != nullptr) {
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL, "*", colvalues[1]);
+ }
+
+ return 0;
+}
+
+static int
+handle_db_list(void* ptr, int ncols, char** colvalues, char** colnames)
+{
+ if (lnav_data.ld_rl_view != nullptr) {
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL, "*", colvalues[1]);
+ }
+
+ return 0;
+}
+
+static int
+handle_table_list(void* ptr, int ncols, char** colvalues, char** colnames)
+{
+ if (lnav_data.ld_rl_view != nullptr) {
+ std::string table_name = colvalues[0];
+
+ if (sqlite_function_help.count(table_name) == 0) {
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL, "*", colvalues[0]);
+ }
+
+ lnav_data.ld_table_ddl[colvalues[0]] = colvalues[1];
+ }
+
+ return 0;
+}
+
+static int
+handle_table_info(void* ptr, int ncols, char** colvalues, char** colnames)
+{
+ if (lnav_data.ld_rl_view != nullptr) {
+ auto_mem<char, sqlite3_free> quoted_name;
+
+ quoted_name = sql_quote_ident(colvalues[1]);
+ lnav_data.ld_rl_view->add_possibility(
+ ln_mode_t::SQL, "*", std::string(quoted_name));
+ }
+ if (strcmp(colvalues[5], "1") == 0) {
+ lnav_data.ld_db_key_names.emplace_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.emplace_back(colvalues[3]);
+ lnav_data.ld_db_key_names.emplace_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,
+};
+
+static void
+add_text_possibilities(readline_curses* rlc,
+ int context,
+ const std::string& type,
+ const std::string& str,
+ text_quoting tq)
+{
+ static const std::regex re_escape(R"(([.\^$*+?()\[\]{}\\|]))");
+ static const std::regex re_escape_no_dot(R"(([\^$*+?()\[\]{}\\|]))");
+
+ data_scanner ds(str);
+
+ while (true) {
+ auto tok_res = ds.tokenize2();
+
+ if (!tok_res) {
+ break;
+ }
+ if (tok_res->tr_capture.length() < 4) {
+ continue;
+ }
+
+ switch (tok_res->tr_token) {
+ case DT_DATE:
+ case DT_TIME:
+ case DT_WHITE:
+ continue;
+ default:
+ break;
+ }
+
+ switch (tq) {
+ case text_quoting::sql: {
+ auto token_value = tok_res->to_string();
+ auto_mem<char, sqlite3_free> quoted_token;
+
+ quoted_token = sqlite3_mprintf("%Q", token_value.c_str());
+ rlc->add_possibility(context, type, std::string(quoted_token));
+ break;
+ }
+ default: {
+ auto token_value_no_dot = tok_res->to_string();
+ auto token_value = std::regex_replace(
+ token_value_no_dot, re_escape, R"(\\\1)");
+ token_value_no_dot = std::regex_replace(
+ token_value_no_dot, re_escape_no_dot, R"(\\\1)");
+ rlc->add_possibility(context, type, token_value);
+ if (token_value != token_value_no_dot) {
+ rlc->add_possibility(context, type, token_value_no_dot);
+ }
+ break;
+ }
+ }
+
+ switch (tok_res->tr_token) {
+ case DT_QUOTED_STRING:
+ add_text_possibilities(
+ rlc,
+ context,
+ type,
+ ds.to_string_fragment(tok_res->tr_inner_capture)
+ .to_string(),
+ tq);
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+void
+add_view_text_possibilities(readline_curses* rlc,
+ int context,
+ const std::string& type,
+ textview_curses* tc,
+ text_quoting tq)
+{
+ text_sub_source* tss = tc->get_sub_source();
+
+ rlc->clear_possibilities(context, type);
+
+ if (tc->get_inner_height() > 0_vl) {
+ for (vis_line_t curr_line = tc->get_top();
+ curr_line <= tc->get_bottom();
+ ++curr_line)
+ {
+ std::string line;
+
+ tss->text_value_for_line(
+ *tc, curr_line, line, text_sub_source::RF_RAW);
+
+ add_text_possibilities(rlc, context, type, line, tq);
+ }
+ }
+
+ rlc->add_possibility(context, type, bookmark_metadata::KNOWN_TAGS);
+}
+
+void
+add_filter_expr_possibilities(readline_curses* rlc,
+ int context,
+ const std::string& type)
+{
+ static const char* BUILTIN_VARS[] = {
+ ":log_level",
+ ":log_time",
+ ":log_time_msecs",
+ ":log_mark",
+ ":log_comment",
+ ":log_tags",
+ ":log_opid",
+ ":log_format",
+ ":log_path",
+ ":log_unique_path",
+ ":log_text",
+ ":log_body",
+ ":log_raw_text",
+ };
+
+ textview_curses* tc = *lnav_data.ld_view_stack.top();
+ auto& lss = lnav_data.ld_log_source;
+ auto bottom = tc->get_bottom();
+
+ rlc->clear_possibilities(context, type);
+ rlc->add_possibility(
+ context, type, std::begin(BUILTIN_VARS), std::end(BUILTIN_VARS));
+ for (auto curr_line = tc->get_top(); curr_line < bottom; ++curr_line) {
+ auto cl = lss.at(curr_line);
+ auto lf = lss.find(cl);
+ auto ll = lf->begin() + cl;
+
+ if (!ll->is_message()) {
+ continue;
+ }
+
+ auto format = lf->get_format();
+ string_attrs_t sa;
+ logline_value_vector values;
+
+ lf->read_full_message(ll, values.lvv_sbr);
+ values.lvv_sbr.erase_ansi();
+ format->annotate(cl, sa, values);
+ for (auto& lv : values.lvv_values) {
+ if (!lv.lv_meta.lvm_struct_name.empty()) {
+ continue;
+ }
+
+ auto_mem<char> ident(sqlite3_free);
+
+ ident = sql_quote_ident(lv.lv_meta.lvm_name.get());
+ auto bound_name = fmt::format(FMT_STRING(":{}"), ident);
+ rlc->add_possibility(context, type, bound_name);
+ switch (lv.lv_meta.lvm_kind) {
+ case value_kind_t::VALUE_BOOLEAN:
+ case value_kind_t::VALUE_FLOAT:
+ case value_kind_t::VALUE_NULL:
+ break;
+ case value_kind_t::VALUE_INTEGER:
+ rlc->add_possibility(
+ context, type, std::to_string(lv.lv_value.i));
+ break;
+ default: {
+ auto_mem<char, sqlite3_free> str;
+
+ str = sqlite3_mprintf(
+ "%.*Q", lv.text_length(), lv.text_value());
+ rlc->add_possibility(context, type, std::string(str.in()));
+ break;
+ }
+ }
+ }
+ }
+ rlc->add_possibility(
+ context, type, std::begin(sql_keywords), std::end(sql_keywords));
+ rlc->add_possibility(context, type, sql_function_names);
+ 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];
+
+ rlc->add_possibility(
+ context,
+ type,
+ 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];
+
+ rlc->add_possibility(
+ context,
+ type,
+ std::string(func_def.zName) + (func_def.nArg ? "(" : "()"));
+ }
+ }
+}
+
+void
+add_env_possibilities(ln_mode_t context)
+{
+ extern char** environ;
+ readline_curses* rlc = lnav_data.ld_rl_view;
+
+ for (char** var = environ; *var != nullptr; var++) {
+ rlc->add_possibility(
+ context, "*", "$" + std::string(*var, strchr(*var, '=')));
+ }
+
+ exec_context& ec = lnav_data.ld_exec_context;
+
+ if (!ec.ec_local_vars.empty()) {
+ for (const auto& iter : ec.ec_local_vars.top()) {
+ rlc->add_possibility(context, "*", "$" + iter.first);
+ }
+ }
+
+ for (const auto& iter : ec.ec_global_vars) {
+ rlc->add_possibility(context, "*", "$" + iter.first);
+ }
+
+ if (lnav_data.ld_window) {
+ rlc->add_possibility(context, "*", "$LINES");
+ rlc->add_possibility(context, "*", "$COLS");
+ }
+}
+
+void
+add_filter_possibilities(textview_curses* tc)
+{
+ readline_curses* rc = lnav_data.ld_rl_view;
+ text_sub_source* tss = tc->get_sub_source();
+ filter_stack& fs = tss->get_filters();
+
+ rc->clear_possibilities(ln_mode_t::COMMAND, "all-filters");
+ rc->clear_possibilities(ln_mode_t::COMMAND, "disabled-filter");
+ rc->clear_possibilities(ln_mode_t::COMMAND, "enabled-filter");
+ for (const auto& tf : fs) {
+ rc->add_possibility(ln_mode_t::COMMAND, "all-filters", tf->get_id());
+ if (tf->is_enabled()) {
+ rc->add_possibility(
+ ln_mode_t::COMMAND, "enabled-filter", tf->get_id());
+ } else {
+ rc->add_possibility(
+ ln_mode_t::COMMAND, "disabled-filter", tf->get_id());
+ }
+ }
+}
+
+void
+add_file_possibilities()
+{
+ static const std::regex sh_escape(R"(([\s\'\"]+))");
+
+ readline_curses* rc = lnav_data.ld_rl_view;
+
+ rc->clear_possibilities(ln_mode_t::COMMAND, "visible-files");
+ rc->clear_possibilities(ln_mode_t::COMMAND, "hidden-files");
+ for (const auto& lf : lnav_data.ld_active_files.fc_files) {
+ if (lf.get() == nullptr) {
+ continue;
+ }
+
+ lnav_data.ld_log_source.find_data(lf) | [&lf, rc](auto ld) {
+ auto escaped_fn
+ = std::regex_replace(lf->get_filename(), sh_escape, R"(\\\1)");
+
+ rc->add_possibility(
+ ln_mode_t::COMMAND,
+ ld->is_visible() ? "visible-files" : "hidden-files",
+ escaped_fn);
+ };
+ }
+}
+
+void
+add_mark_possibilities()
+{
+ readline_curses* rc = lnav_data.ld_rl_view;
+
+ rc->clear_possibilities(ln_mode_t::COMMAND, "mark-type");
+ for (auto iter = bookmark_type_t::type_begin();
+ iter != bookmark_type_t::type_end();
+ ++iter)
+ {
+ bookmark_type_t* bt = (*iter);
+
+ if (bt->get_name().empty()) {
+ continue;
+ }
+ rc->add_possibility(ln_mode_t::COMMAND, "mark-type", bt->get_name());
+ }
+}
+
+void
+add_config_possibilities()
+{
+ readline_curses* rc = lnav_data.ld_rl_view;
+ std::set<std::string> visited;
+ auto cb = [rc, &visited](const json_path_handler_base& jph,
+ const std::string& path,
+ void* mem) {
+ if (jph.jph_children) {
+ const auto named_caps = jph.jph_regex->get_named_captures();
+
+ if (named_caps.empty()) {
+ rc->add_possibility(ln_mode_t::COMMAND, "config-option", path);
+ }
+ for (const auto& named_cap : named_caps) {
+ if (visited.count(named_cap.get_name().to_string()) == 0) {
+ rc->clear_possibilities(ln_mode_t::COMMAND,
+ named_cap.get_name().to_string());
+ visited.insert(named_cap.get_name().to_string());
+ }
+
+ ghc::filesystem::path path_obj(path);
+ rc->add_possibility(ln_mode_t::COMMAND,
+ named_cap.get_name().to_string(),
+ path_obj.parent_path().filename().string());
+ }
+ } else {
+ rc->add_possibility(ln_mode_t::COMMAND, "config-option", path);
+ if (jph.jph_synopsis) {
+ rc->add_prefix(ln_mode_t::COMMAND,
+ std::vector<std::string>{"config", path},
+ jph.jph_synopsis);
+ }
+ }
+ };
+
+ rc->clear_possibilities(ln_mode_t::COMMAND, "config-option");
+ for (const auto& jph : lnav_config_handlers.jpc_children) {
+ jph.walk(cb, &lnav_config);
+ }
+}
+
+void
+add_tag_possibilities()
+{
+ readline_curses* rc = lnav_data.ld_rl_view;
+
+ rc->clear_possibilities(ln_mode_t::COMMAND, "tag");
+ rc->clear_possibilities(ln_mode_t::COMMAND, "line-tags");
+ rc->add_possibility(
+ ln_mode_t::COMMAND, "tag", bookmark_metadata::KNOWN_TAGS);
+ if (lnav_data.ld_view_stack.top().value_or(nullptr)
+ == &lnav_data.ld_views[LNV_LOG])
+ {
+ logfile_sub_source& lss = lnav_data.ld_log_source;
+ if (lss.text_line_count() > 0) {
+ auto line_meta_opt = lss.find_bookmark_metadata(
+ lnav_data.ld_views[LNV_LOG].get_top());
+ if (line_meta_opt) {
+ rc->add_possibility(ln_mode_t::COMMAND,
+ "line-tags",
+ line_meta_opt.value()->bm_tags);
+ }
+ }
+ }
+}
+
+void
+add_recent_netlocs_possibilities()
+{
+ readline_curses* rc = lnav_data.ld_rl_view;
+
+ rc->clear_possibilities(ln_mode_t::COMMAND, "recent-netlocs");
+ std::set<std::string> netlocs;
+
+ isc::to<tailer::looper&, services::remote_tailer_t>().send_and_wait(
+ [&netlocs](auto& tlooper) { netlocs = tlooper.active_netlocs(); });
+ netlocs.insert(session_data.sd_recent_netlocs.begin(),
+ session_data.sd_recent_netlocs.end());
+ rc->add_possibility(ln_mode_t::COMMAND, "recent-netlocs", netlocs);
+}
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