mirror of
https://github.com/RGBCube/serenity
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Shell: Move to Userland/Shell/
This commit is contained in:
Andreas Kling
parent
07c7e35372
commit
c4e2fd8123
35 changed files with 11 additions and 9 deletions
929
Userland/Shell/Builtin.cpp
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929
Userland/Shell/Builtin.cpp
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/*
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* Copyright (c) 2020, The SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "AST.h"
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#include "Shell.h"
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#include <AK/LexicalPath.h>
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#include <AK/ScopeGuard.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/EventLoop.h>
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#include <LibCore/File.h>
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#include <inttypes.h>
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#include <signal.h>
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#include <sys/wait.h>
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#include <unistd.h>
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extern char** environ;
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namespace Shell {
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int Shell::builtin_alias(int argc, const char** argv)
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{
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Vector<const char*> arguments;
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Core::ArgsParser parser;
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parser.add_positional_argument(arguments, "List of name[=values]'s", "name[=value]", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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if (arguments.is_empty()) {
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for (auto& alias : m_aliases)
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printf("%s=%s\n", escape_token(alias.key).characters(), escape_token(alias.value).characters());
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return 0;
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}
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bool fail = false;
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for (auto& argument : arguments) {
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auto parts = String { argument }.split_limit('=', 2, true);
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if (parts.size() == 1) {
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auto alias = m_aliases.get(parts[0]);
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if (alias.has_value()) {
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printf("%s=%s\n", escape_token(parts[0]).characters(), escape_token(alias.value()).characters());
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} else {
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fail = true;
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}
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} else {
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m_aliases.set(parts[0], parts[1]);
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add_entry_to_cache(parts[0]);
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}
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}
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return fail ? 1 : 0;
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}
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int Shell::builtin_bg(int argc, const char** argv)
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{
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int job_id = -1;
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Core::ArgsParser parser;
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parser.add_positional_argument(job_id, "Job ID to run in background", "job-id", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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if (job_id == -1 && !jobs.is_empty())
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job_id = find_last_job_id();
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auto* job = const_cast<Job*>(find_job(job_id));
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if (!job) {
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if (job_id == -1) {
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fprintf(stderr, "bg: no current job\n");
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} else {
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fprintf(stderr, "bg: job with id %d not found\n", job_id);
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}
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return 1;
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}
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job->set_running_in_background(true);
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job->set_should_announce_exit(true);
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job->set_is_suspended(false);
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dbgln("Resuming {} ({})", job->pid(), job->cmd());
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warnln("Resuming job {} - {}", job->job_id(), job->cmd().characters());
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// Try using the PGID, but if that fails, just use the PID.
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if (killpg(job->pgid(), SIGCONT) < 0) {
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if (kill(job->pid(), SIGCONT) < 0) {
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perror("kill");
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return 1;
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}
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}
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return 0;
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}
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int Shell::builtin_cd(int argc, const char** argv)
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{
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const char* arg_path = nullptr;
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Core::ArgsParser parser;
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parser.add_positional_argument(arg_path, "Path to change to", "path", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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String new_path;
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if (!arg_path) {
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new_path = home;
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} else {
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if (strcmp(arg_path, "-") == 0) {
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char* oldpwd = getenv("OLDPWD");
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if (oldpwd == nullptr)
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return 1;
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new_path = oldpwd;
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} else if (arg_path[0] == '/') {
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new_path = argv[1];
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} else {
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StringBuilder builder;
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builder.append(cwd);
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builder.append('/');
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builder.append(arg_path);
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new_path = builder.to_string();
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}
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}
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auto real_path = Core::File::real_path_for(new_path);
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if (real_path.is_empty()) {
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fprintf(stderr, "Invalid path '%s'\n", new_path.characters());
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return 1;
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}
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if (cd_history.is_empty() || cd_history.last() != real_path)
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cd_history.enqueue(real_path);
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const char* path = real_path.characters();
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int rc = chdir(path);
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if (rc < 0) {
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if (errno == ENOTDIR) {
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fprintf(stderr, "Not a directory: %s\n", path);
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} else {
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fprintf(stderr, "chdir(%s) failed: %s\n", path, strerror(errno));
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}
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return 1;
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}
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setenv("OLDPWD", cwd.characters(), 1);
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cwd = real_path;
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setenv("PWD", cwd.characters(), 1);
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return 0;
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}
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int Shell::builtin_cdh(int argc, const char** argv)
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{
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int index = -1;
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Core::ArgsParser parser;
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parser.add_positional_argument(index, "Index of the cd history entry (leave out for a list)", "index", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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if (index == -1) {
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if (cd_history.is_empty()) {
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fprintf(stderr, "cdh: no history available\n");
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return 0;
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}
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for (ssize_t i = cd_history.size() - 1; i >= 0; --i)
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printf("%lu: %s\n", cd_history.size() - i, cd_history.at(i).characters());
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return 0;
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}
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if (index < 1 || (size_t)index > cd_history.size()) {
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fprintf(stderr, "cdh: history index out of bounds: %d not in (0, %zu)\n", index, cd_history.size());
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return 1;
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}
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const char* path = cd_history.at(cd_history.size() - index).characters();
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const char* cd_args[] = { "cd", path, nullptr };
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return Shell::builtin_cd(2, cd_args);
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}
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int Shell::builtin_dirs(int argc, const char** argv)
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{
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// The first directory in the stack is ALWAYS the current directory
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directory_stack.at(0) = cwd.characters();
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bool clear = false;
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bool print = false;
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bool number_when_printing = false;
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char separator = ' ';
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Vector<const char*> paths;
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Core::ArgsParser parser;
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parser.add_option(clear, "Clear the directory stack", "clear", 'c');
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parser.add_option(print, "Print directory entries one per line", "print", 'p');
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parser.add_option(number_when_printing, "Number the directories in the stack when printing", "number", 'v');
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parser.add_positional_argument(paths, "Extra paths to put on the stack", "path", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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// -v implies -p
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print = print || number_when_printing;
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if (print) {
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if (!paths.is_empty()) {
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fprintf(stderr, "dirs: 'print' and 'number' are not allowed when any path is specified");
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return 1;
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}
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separator = '\n';
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}
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if (clear) {
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for (size_t i = 1; i < directory_stack.size(); i++)
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directory_stack.remove(i);
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}
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for (auto& path : paths)
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directory_stack.append(path);
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if (print || (!clear && paths.is_empty())) {
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int index = 0;
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for (auto& directory : directory_stack) {
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if (number_when_printing)
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printf("%d ", index++);
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print_path(directory);
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fputc(separator, stdout);
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}
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}
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return 0;
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}
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int Shell::builtin_exec(int argc, const char** argv)
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{
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if (argc < 2) {
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fprintf(stderr, "Shell: No command given to exec\n");
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return 1;
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}
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Vector<const char*> argv_vector;
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argv_vector.append(argv + 1, argc - 1);
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argv_vector.append(nullptr);
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execute_process(move(argv_vector));
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}
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int Shell::builtin_exit(int argc, const char** argv)
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{
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int exit_code = 0;
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Core::ArgsParser parser;
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parser.add_positional_argument(exit_code, "Exit code", "code", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv)))
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return 1;
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if (m_is_interactive) {
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if (!jobs.is_empty()) {
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if (!m_should_ignore_jobs_on_next_exit) {
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fprintf(stderr, "Shell: You have %zu active job%s, run 'exit' again to really exit.\n", jobs.size(), jobs.size() > 1 ? "s" : "");
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m_should_ignore_jobs_on_next_exit = true;
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return 1;
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}
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}
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}
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stop_all_jobs();
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m_editor->save_history(get_history_path());
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if (m_is_interactive)
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printf("Good-bye!\n");
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exit(exit_code);
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return 0;
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}
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int Shell::builtin_export(int argc, const char** argv)
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{
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Vector<const char*> vars;
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Core::ArgsParser parser;
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parser.add_positional_argument(vars, "List of variable[=value]'s", "values", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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if (vars.is_empty()) {
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for (size_t i = 0; environ[i]; ++i)
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puts(environ[i]);
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return 0;
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}
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for (auto& value : vars) {
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auto parts = String { value }.split_limit('=', 2);
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if (parts.size() == 1) {
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auto value = lookup_local_variable(parts[0]);
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if (value) {
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auto values = value->resolve_as_list(*this);
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StringBuilder builder;
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builder.join(" ", values);
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parts.append(builder.to_string());
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} else {
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// Ignore the export.
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continue;
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}
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}
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int setenv_return = setenv(parts[0].characters(), parts[1].characters(), 1);
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if (setenv_return != 0) {
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perror("setenv");
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return 1;
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}
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if (parts[0] == "PATH")
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cache_path();
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}
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return 0;
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}
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int Shell::builtin_glob(int argc, const char** argv)
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{
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Vector<const char*> globs;
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Core::ArgsParser parser;
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parser.add_positional_argument(globs, "Globs to resolve", "glob");
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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for (auto& glob : globs) {
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for (auto& expanded : expand_globs(glob, cwd))
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outln("{}", expanded);
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}
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return 0;
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}
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int Shell::builtin_fg(int argc, const char** argv)
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{
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int job_id = -1;
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Core::ArgsParser parser;
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parser.add_positional_argument(job_id, "Job ID to bring to foreground", "job-id", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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if (job_id == -1 && !jobs.is_empty())
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job_id = find_last_job_id();
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RefPtr<Job> job = find_job(job_id);
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if (!job) {
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if (job_id == -1) {
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fprintf(stderr, "fg: no current job\n");
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} else {
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fprintf(stderr, "fg: job with id %d not found\n", job_id);
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}
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return 1;
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}
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job->set_running_in_background(false);
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job->set_is_suspended(false);
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dbgln("Resuming {} ({})", job->pid(), job->cmd());
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warnln("Resuming job {} - {}", job->job_id(), job->cmd().characters());
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tcsetpgrp(STDOUT_FILENO, job->pgid());
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tcsetpgrp(STDIN_FILENO, job->pgid());
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// Try using the PGID, but if that fails, just use the PID.
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if (killpg(job->pgid(), SIGCONT) < 0) {
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if (kill(job->pid(), SIGCONT) < 0) {
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perror("kill");
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return 1;
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}
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}
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block_on_job(job);
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if (job->exited())
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return job->exit_code();
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else
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return 0;
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}
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int Shell::builtin_disown(int argc, const char** argv)
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{
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Vector<const char*> str_job_ids;
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Core::ArgsParser parser;
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parser.add_positional_argument(str_job_ids, "Id of the jobs to disown (omit for current job)", "job_ids", Core::ArgsParser::Required::No);
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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Vector<size_t> job_ids;
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for (auto& job_id : str_job_ids) {
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auto id = StringView(job_id).to_uint();
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if (id.has_value())
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job_ids.append(id.value());
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else
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fprintf(stderr, "disown: Invalid job id %s\n", job_id);
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}
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if (job_ids.is_empty())
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job_ids.append(find_last_job_id());
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Vector<const Job*> jobs_to_disown;
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for (auto id : job_ids) {
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auto job = find_job(id);
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if (!job)
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fprintf(stderr, "disown: job with id %zu not found\n", id);
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else
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jobs_to_disown.append(job);
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}
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if (jobs_to_disown.is_empty()) {
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if (str_job_ids.is_empty())
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fprintf(stderr, "disown: no current job\n");
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// An error message has already been printed about the nonexistence of each listed job.
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return 1;
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}
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for (auto job : jobs_to_disown) {
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job->deactivate();
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if (!job->is_running_in_background())
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fprintf(stderr, "disown warning: job %" PRIu64 " is currently not running, 'kill -%d %d' to make it continue\n", job->job_id(), SIGCONT, job->pid());
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jobs.remove(job->pid());
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}
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return 0;
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}
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int Shell::builtin_history(int, const char**)
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{
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for (size_t i = 0; i < m_editor->history().size(); ++i) {
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printf("%6zu %s\n", i, m_editor->history()[i].entry.characters());
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}
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return 0;
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}
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int Shell::builtin_jobs(int argc, const char** argv)
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{
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bool list = false, show_pid = false;
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Core::ArgsParser parser;
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parser.add_option(list, "List all information about jobs", "list", 'l');
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parser.add_option(show_pid, "Display the PID of the jobs", "pid", 'p');
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if (!parser.parse(argc, const_cast<char**>(argv), false))
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return 1;
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Job::PrintStatusMode mode = Job::PrintStatusMode::Basic;
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if (show_pid)
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mode = Job::PrintStatusMode::OnlyPID;
|
||||
|
||||
if (list)
|
||||
mode = Job::PrintStatusMode::ListAll;
|
||||
|
||||
for (auto& it : jobs) {
|
||||
if (!it.value->print_status(mode))
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Shell::builtin_popd(int argc, const char** argv)
|
||||
{
|
||||
if (directory_stack.size() <= 1) {
|
||||
fprintf(stderr, "Shell: popd: directory stack empty\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
bool should_not_switch = false;
|
||||
String path = directory_stack.take_last();
|
||||
|
||||
Core::ArgsParser parser;
|
||||
parser.add_option(should_not_switch, "Do not switch dirs", "no-switch", 'n');
|
||||
|
||||
if (!parser.parse(argc, const_cast<char**>(argv), false))
|
||||
return 1;
|
||||
|
||||
bool should_switch = !should_not_switch;
|
||||
|
||||
// When no arguments are given, popd removes the top directory from the stack and performs a cd to the new top directory.
|
||||
if (argc == 1) {
|
||||
int rc = chdir(path.characters());
|
||||
if (rc < 0) {
|
||||
fprintf(stderr, "chdir(%s) failed: %s\n", path.characters(), strerror(errno));
|
||||
return 1;
|
||||
}
|
||||
|
||||
cwd = path;
|
||||
return 0;
|
||||
}
|
||||
|
||||
LexicalPath lexical_path(path.characters());
|
||||
if (!lexical_path.is_valid()) {
|
||||
fprintf(stderr, "LexicalPath failed to canonicalize '%s'\n", path.characters());
|
||||
return 1;
|
||||
}
|
||||
|
||||
const char* real_path = lexical_path.string().characters();
|
||||
|
||||
struct stat st;
|
||||
int rc = stat(real_path, &st);
|
||||
if (rc < 0) {
|
||||
fprintf(stderr, "stat(%s) failed: %s\n", real_path, strerror(errno));
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (!S_ISDIR(st.st_mode)) {
|
||||
fprintf(stderr, "Not a directory: %s\n", real_path);
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (should_switch) {
|
||||
int rc = chdir(real_path);
|
||||
if (rc < 0) {
|
||||
fprintf(stderr, "chdir(%s) failed: %s\n", real_path, strerror(errno));
|
||||
return 1;
|
||||
}
|
||||
|
||||
cwd = lexical_path.string();
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Shell::builtin_pushd(int argc, const char** argv)
|
||||
{
|
||||
StringBuilder path_builder;
|
||||
bool should_switch = true;
|
||||
|
||||
// From the BASH reference manual: https://www.gnu.org/software/bash/manual/html_node/Directory-Stack-Builtins.html
|
||||
// With no arguments, pushd exchanges the top two directories and makes the new top the current directory.
|
||||
if (argc == 1) {
|
||||
if (directory_stack.size() < 2) {
|
||||
fprintf(stderr, "pushd: no other directory\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
String dir1 = directory_stack.take_first();
|
||||
String dir2 = directory_stack.take_first();
|
||||
directory_stack.insert(0, dir2);
|
||||
directory_stack.insert(1, dir1);
|
||||
|
||||
int rc = chdir(dir2.characters());
|
||||
if (rc < 0) {
|
||||
fprintf(stderr, "chdir(%s) failed: %s\n", dir2.characters(), strerror(errno));
|
||||
return 1;
|
||||
}
|
||||
|
||||
cwd = dir2;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
// Let's assume the user's typed in 'pushd <dir>'
|
||||
if (argc == 2) {
|
||||
directory_stack.append(cwd.characters());
|
||||
if (argv[1][0] == '/') {
|
||||
path_builder.append(argv[1]);
|
||||
} else {
|
||||
path_builder.appendf("%s/%s", cwd.characters(), argv[1]);
|
||||
}
|
||||
} else if (argc == 3) {
|
||||
directory_stack.append(cwd.characters());
|
||||
for (int i = 1; i < argc; i++) {
|
||||
const char* arg = argv[i];
|
||||
|
||||
if (arg[0] != '-') {
|
||||
if (arg[0] == '/') {
|
||||
path_builder.append(arg);
|
||||
} else
|
||||
path_builder.appendf("%s/%s", cwd.characters(), arg);
|
||||
}
|
||||
|
||||
if (!strcmp(arg, "-n"))
|
||||
should_switch = false;
|
||||
}
|
||||
}
|
||||
|
||||
LexicalPath lexical_path(path_builder.to_string());
|
||||
if (!lexical_path.is_valid()) {
|
||||
fprintf(stderr, "LexicalPath failed to canonicalize '%s'\n", path_builder.to_string().characters());
|
||||
return 1;
|
||||
}
|
||||
|
||||
const char* real_path = lexical_path.string().characters();
|
||||
|
||||
struct stat st;
|
||||
int rc = stat(real_path, &st);
|
||||
if (rc < 0) {
|
||||
fprintf(stderr, "stat(%s) failed: %s\n", real_path, strerror(errno));
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (!S_ISDIR(st.st_mode)) {
|
||||
fprintf(stderr, "Not a directory: %s\n", real_path);
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (should_switch) {
|
||||
int rc = chdir(real_path);
|
||||
if (rc < 0) {
|
||||
fprintf(stderr, "chdir(%s) failed: %s\n", real_path, strerror(errno));
|
||||
return 1;
|
||||
}
|
||||
|
||||
cwd = lexical_path.string();
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Shell::builtin_pwd(int, const char**)
|
||||
{
|
||||
print_path(cwd);
|
||||
fputc('\n', stdout);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Shell::builtin_setopt(int argc, const char** argv)
|
||||
{
|
||||
if (argc == 1) {
|
||||
#define __ENUMERATE_SHELL_OPTION(name, default_, description) \
|
||||
if (options.name) \
|
||||
fprintf(stderr, #name "\n");
|
||||
|
||||
ENUMERATE_SHELL_OPTIONS();
|
||||
|
||||
#undef __ENUMERATE_SHELL_OPTION
|
||||
}
|
||||
|
||||
Core::ArgsParser parser;
|
||||
#define __ENUMERATE_SHELL_OPTION(name, default_, description) \
|
||||
bool name = false; \
|
||||
bool not_##name = false; \
|
||||
parser.add_option(name, "Enable: " description, #name, '\0'); \
|
||||
parser.add_option(not_##name, "Disable: " description, "no_" #name, '\0');
|
||||
|
||||
ENUMERATE_SHELL_OPTIONS();
|
||||
|
||||
#undef __ENUMERATE_SHELL_OPTION
|
||||
|
||||
if (!parser.parse(argc, const_cast<char**>(argv), false))
|
||||
return 1;
|
||||
|
||||
#define __ENUMERATE_SHELL_OPTION(name, default_, description) \
|
||||
if (name) \
|
||||
options.name = true; \
|
||||
if (not_##name) \
|
||||
options.name = false;
|
||||
|
||||
ENUMERATE_SHELL_OPTIONS();
|
||||
|
||||
#undef __ENUMERATE_SHELL_OPTION
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Shell::builtin_shift(int argc, const char** argv)
|
||||
{
|
||||
int count = 1;
|
||||
|
||||
Core::ArgsParser parser;
|
||||
parser.add_positional_argument(count, "Shift count", "count", Core::ArgsParser::Required::No);
|
||||
|
||||
if (!parser.parse(argc, const_cast<char**>(argv), false))
|
||||
return 1;
|
||||
|
||||
if (count < 1)
|
||||
return 0;
|
||||
|
||||
auto argv_ = lookup_local_variable("ARGV");
|
||||
if (!argv_) {
|
||||
fprintf(stderr, "shift: ARGV is unset\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (!argv_->is_list())
|
||||
argv_ = adopt(*new AST::ListValue({ argv_.release_nonnull() }));
|
||||
|
||||
auto& values = static_cast<AST::ListValue*>(argv_.ptr())->values();
|
||||
if ((size_t)count > values.size()) {
|
||||
fprintf(stderr, "shift: shift count must not be greater than %zu\n", values.size());
|
||||
return 1;
|
||||
}
|
||||
|
||||
for (auto i = 0; i < count; ++i)
|
||||
values.take_first();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Shell::builtin_source(int argc, const char** argv)
|
||||
{
|
||||
const char* file_to_source = nullptr;
|
||||
Vector<const char*> args;
|
||||
|
||||
Core::ArgsParser parser;
|
||||
parser.add_positional_argument(file_to_source, "File to read commands from", "path");
|
||||
parser.add_positional_argument(args, "ARGV for the sourced file", "args", Core::ArgsParser::Required::No);
|
||||
|
||||
if (!parser.parse(argc, const_cast<char**>(argv)))
|
||||
return 1;
|
||||
|
||||
Vector<String> string_argv;
|
||||
for (auto& arg : args)
|
||||
string_argv.append(arg);
|
||||
|
||||
auto previous_argv = lookup_local_variable("ARGV");
|
||||
ScopeGuard guard { [&] {
|
||||
if (!args.is_empty())
|
||||
set_local_variable("ARGV", move(previous_argv));
|
||||
} };
|
||||
|
||||
if (!args.is_empty())
|
||||
set_local_variable("ARGV", AST::create<AST::ListValue>(move(string_argv)));
|
||||
|
||||
if (!run_file(file_to_source, true))
|
||||
return 126;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Shell::builtin_time(int argc, const char** argv)
|
||||
{
|
||||
Vector<const char*> args;
|
||||
|
||||
Core::ArgsParser parser;
|
||||
parser.add_positional_argument(args, "Command to execute with arguments", "command", Core::ArgsParser::Required::Yes);
|
||||
|
||||
if (!parser.parse(argc, const_cast<char**>(argv), false))
|
||||
return 1;
|
||||
|
||||
AST::Command command;
|
||||
for (auto& arg : args)
|
||||
command.argv.append(arg);
|
||||
|
||||
auto commands = expand_aliases({ move(command) });
|
||||
|
||||
Core::ElapsedTimer timer;
|
||||
int exit_code = 1;
|
||||
timer.start();
|
||||
for (auto& job : run_commands(commands)) {
|
||||
block_on_job(job);
|
||||
exit_code = job.exit_code();
|
||||
}
|
||||
fprintf(stderr, "Time: %d ms\n", timer.elapsed());
|
||||
return exit_code;
|
||||
}
|
||||
|
||||
int Shell::builtin_umask(int argc, const char** argv)
|
||||
{
|
||||
const char* mask_text = nullptr;
|
||||
|
||||
Core::ArgsParser parser;
|
||||
parser.add_positional_argument(mask_text, "New mask (omit to get current mask)", "octal-mask", Core::ArgsParser::Required::No);
|
||||
|
||||
if (!parser.parse(argc, const_cast<char**>(argv), false))
|
||||
return 1;
|
||||
|
||||
if (!mask_text) {
|
||||
mode_t old_mask = umask(0);
|
||||
printf("%#o\n", old_mask);
|
||||
umask(old_mask);
|
||||
return 0;
|
||||
}
|
||||
|
||||
unsigned mask;
|
||||
int matches = sscanf(mask_text, "%o", &mask);
|
||||
if (matches == 1) {
|
||||
umask(mask);
|
||||
return 0;
|
||||
}
|
||||
|
||||
fprintf(stderr, "umask: Invalid mask '%s'\n", mask_text);
|
||||
return 1;
|
||||
}
|
||||
|
||||
int Shell::builtin_wait(int argc, const char** argv)
|
||||
{
|
||||
Vector<const char*> job_ids;
|
||||
|
||||
Core::ArgsParser parser;
|
||||
parser.add_positional_argument(job_ids, "Job IDs to wait for, defaults to all jobs if missing", "jobs", Core::ArgsParser::Required::No);
|
||||
|
||||
if (!parser.parse(argc, const_cast<char**>(argv), false))
|
||||
return 1;
|
||||
|
||||
Vector<NonnullRefPtr<Job>> jobs_to_wait_for;
|
||||
|
||||
if (job_ids.is_empty()) {
|
||||
for (auto it : jobs)
|
||||
jobs_to_wait_for.append(it.value);
|
||||
} else {
|
||||
for (String id_s : job_ids) {
|
||||
auto id_opt = id_s.to_uint();
|
||||
if (id_opt.has_value()) {
|
||||
if (auto job = find_job(id_opt.value())) {
|
||||
jobs_to_wait_for.append(*job);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
warnln("wait: invalid or nonexistent job id {}", id_s);
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
for (auto& job : jobs_to_wait_for) {
|
||||
job->set_running_in_background(false);
|
||||
block_on_job(job);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int Shell::builtin_unset(int argc, const char** argv)
|
||||
{
|
||||
Vector<const char*> vars;
|
||||
|
||||
Core::ArgsParser parser;
|
||||
parser.add_positional_argument(vars, "List of variables", "variables", Core::ArgsParser::Required::Yes);
|
||||
|
||||
if (!parser.parse(argc, const_cast<char**>(argv), false))
|
||||
return 1;
|
||||
|
||||
for (auto& value : vars) {
|
||||
if (lookup_local_variable(value)) {
|
||||
unset_local_variable(value);
|
||||
} else {
|
||||
unsetenv(value);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
bool Shell::run_builtin(const AST::Command& command, const NonnullRefPtrVector<AST::Rewiring>& rewirings, int& retval)
|
||||
{
|
||||
if (command.argv.is_empty())
|
||||
return false;
|
||||
|
||||
if (!has_builtin(command.argv.first()))
|
||||
return false;
|
||||
|
||||
Vector<const char*> argv;
|
||||
for (auto& arg : command.argv)
|
||||
argv.append(arg.characters());
|
||||
|
||||
argv.append(nullptr);
|
||||
|
||||
StringView name = command.argv.first();
|
||||
|
||||
SavedFileDescriptors fds { rewirings };
|
||||
|
||||
for (auto& rewiring : rewirings) {
|
||||
int rc = dup2(rewiring.old_fd, rewiring.new_fd);
|
||||
if (rc < 0) {
|
||||
perror("dup2(run)");
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
Core::EventLoop loop;
|
||||
setup_signals();
|
||||
|
||||
#define __ENUMERATE_SHELL_BUILTIN(builtin) \
|
||||
if (name == #builtin) { \
|
||||
retval = builtin_##builtin(argv.size() - 1, argv.data()); \
|
||||
if (!has_error(ShellError::None)) \
|
||||
raise_error(m_error, m_error_description, command.position); \
|
||||
return true; \
|
||||
}
|
||||
|
||||
ENUMERATE_SHELL_BUILTINS();
|
||||
|
||||
#undef __ENUMERATE_SHELL_BUILTIN
|
||||
return false;
|
||||
}
|
||||
|
||||
bool Shell::has_builtin(const StringView& name) const
|
||||
{
|
||||
#define __ENUMERATE_SHELL_BUILTIN(builtin) \
|
||||
if (name == #builtin) { \
|
||||
return true; \
|
||||
}
|
||||
|
||||
ENUMERATE_SHELL_BUILTINS();
|
||||
|
||||
#undef __ENUMERATE_SHELL_BUILTIN
|
||||
return false;
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue