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Shell: Read script arguments as Strings instead of char*s

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This saves work in places that previously had to create a
`Vector<String>` anyway, or repeatedly cast the char* to a String.
Plus, Strings are nicer than char*. :^)
This commit is contained in:
Sam Atkins 2022-04-02 15:46:41 +01:00 committed by Andreas Kling
parent 1ac6c4df72
commit 84b67754c0
Notes: sideshowbarker 2024-07-17 12:05:21 +09:00 
Author: https://github.com/AtkinsSJ
Commit: https://github.com/SerenityOS/serenity/commit/84b67754c0
Pull-request: https://github.com/SerenityOS/serenity/pull/13013
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/bgianfo
2 changed files with 21 additions and 34 deletions
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46
Userland/Shell/Builtin.cpp
View File

@ -41,7 +41,7 @@ int Shell::builtin_dump(int argc, char const** argv)
int Shell::builtin_alias(int argc, char const** argv)
{
Vector<char const*> arguments;
Vector<String> arguments;
Core::ArgsParser parser;
parser.add_positional_argument(arguments, "List of name[=values]'s", "name[=value]", Core::ArgsParser::Required::No);
@ -57,7 +57,7 @@ int Shell::builtin_alias(int argc, char const** argv)
bool fail = false;
for (auto& argument : arguments) {
auto parts = String { argument }.split_limit('=', 2, true);
auto parts = argument.split_limit('=', 2, true);
if (parts.size() == 1) {
auto alias = m_aliases.get(parts[0]);
if (alias.has_value()) {
@ -77,7 +77,7 @@ int Shell::builtin_alias(int argc, char const** argv)
int Shell::builtin_unalias(int argc, char const** argv)
{
bool remove_all { false };
Vector<char const*> arguments;
Vector<String> arguments;
Core::ArgsParser parser;
parser.set_general_help("Remove alias from the list of aliases");
@ -179,7 +179,7 @@ int Shell::builtin_bg(int argc, char const** argv)
int Shell::builtin_type(int argc, char const** argv)
{
Vector<char const*> commands;
Vector<String> commands;
bool dont_show_function_source = false;
Core::ArgsParser parser;
@ -202,7 +202,7 @@ int Shell::builtin_type(int argc, char const** argv)
// check if it is a function
if (auto function = m_functions.get(command); function.has_value()) {
auto fn = function.value();
printf("%s is a function\n", command);
printf("%s is a function\n", command.characters());
if (!dont_show_function_source) {
StringBuilder builder;
builder.append(fn.name);
@ -226,18 +226,18 @@ int Shell::builtin_type(int argc, char const** argv)
// check if its a builtin
if (has_builtin(command)) {
printf("%s is a shell builtin\n", command);
printf("%s is a shell builtin\n", command.characters());
continue;
}
// check if its an executable in PATH
auto fullpath = Core::find_executable_in_path(command);
if (!fullpath.is_empty()) {
printf("%s is %s\n", command, escape_token(fullpath).characters());
printf("%s is %s\n", command.characters(), escape_token(fullpath).characters());
continue;
}
something_not_found = true;
printf("type: %s not found\n", command);
printf("type: %s not found\n", command.characters());
}
if (something_not_found)
@ -341,7 +341,7 @@ int Shell::builtin_dirs(int argc, char const** argv)
bool number_when_printing = false;
char separator = ' ';
Vector<char const*> paths;
Vector<String> paths;
Core::ArgsParser parser;
parser.add_option(clear, "Clear the directory stack", "clear", 'c');
@ -425,7 +425,7 @@ int Shell::builtin_exit(int argc, char const** argv)
int Shell::builtin_export(int argc, char const** argv)
{
Vector<char const*> vars;
Vector<String> vars;
Core::ArgsParser parser;
parser.add_positional_argument(vars, "List of variable[=value]'s", "values", Core::ArgsParser::Required::No);
@ -440,7 +440,7 @@ int Shell::builtin_export(int argc, char const** argv)
}
for (auto& value : vars) {
auto parts = String { value }.split_limit('=', 2);
auto parts = value.split_limit('=', 2);
if (parts.size() == 1) {
auto value = lookup_local_variable(parts[0]);
@ -471,7 +471,7 @@ int Shell::builtin_export(int argc, char const** argv)
int Shell::builtin_glob(int argc, char const** argv)
{
Vector<char const*> globs;
Vector<String> globs;
Core::ArgsParser parser;
parser.add_positional_argument(globs, "Globs to resolve", "glob");
@ -852,7 +852,7 @@ int Shell::builtin_shift(int argc, char const** argv)
int Shell::builtin_source(int argc, char const** argv)
{
char const* file_to_source = nullptr;
Vector<char const*> args;
Vector<String> args;
Core::ArgsParser parser;
parser.add_positional_argument(file_to_source, "File to read commands from", "path");
@ -861,10 +861,6 @@ int Shell::builtin_source(int argc, char const** argv)
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())
@ -872,7 +868,7 @@ int Shell::builtin_source(int argc, char const** argv)
} };
if (!args.is_empty())
set_local_variable("ARGV", AST::make_ref_counted<AST::ListValue>(move(string_argv)));
set_local_variable("ARGV", AST::make_ref_counted<AST::ListValue>(move(args)));
if (!run_file(file_to_source, true))
return 126;
@ -882,14 +878,14 @@ int Shell::builtin_source(int argc, char const** argv)
int Shell::builtin_time(int argc, char const** argv)
{
Vector<char const*> args;
AST::Command command;
int number_of_iterations = 1;
Core::ArgsParser parser;
parser.add_option(number_of_iterations, "Number of iterations", "iterations", 'n', "iterations");
parser.set_stop_on_first_non_option(true);
parser.add_positional_argument(args, "Command to execute with arguments", "command", Core::ArgsParser::Required::Yes);
parser.add_positional_argument(command.argv, "Command to execute with arguments", "command", Core::ArgsParser::Required::Yes);
if (!parser.parse(argc, const_cast<char**>(argv), Core::ArgsParser::FailureBehavior::PrintUsage))
return 1;
@ -897,10 +893,6 @@ int Shell::builtin_time(int argc, char const** argv)
if (number_of_iterations < 1)
return 1;
AST::Command command;
for (auto& arg : args)
command.argv.append(arg);
auto commands = expand_aliases({ move(command) });
AK::Statistics iteration_times;
@ -924,7 +916,7 @@ int Shell::builtin_time(int argc, char const** argv)
warnln("Timing report: {} ms", iteration_times.sum());
warnln("==============");
warnln("Command: {}", String::join(' ', args));
warnln("Command: {}", String::join(' ', command.argv));
warnln("Average time: {:.2} ms (median: {}, stddev: {:.2}, min: {}, max:{})",
iteration_times.average(), iteration_times.median(),
iteration_times.standard_deviation(),
@ -1025,7 +1017,7 @@ int Shell::builtin_wait(int argc, char const** argv)
int Shell::builtin_unset(int argc, char const** argv)
{
Vector<char const*> vars;
Vector<String> vars;
Core::ArgsParser parser;
parser.add_positional_argument(vars, "List of variables", "variables", Core::ArgsParser::Required::Yes);
@ -1041,7 +1033,7 @@ int Shell::builtin_unset(int argc, char const** argv)
if (lookup_local_variable(value)) {
unset_local_variable(value);
} else {
unsetenv(value);
unsetenv(value.characters());
}
}

9
Userland/Shell/main.cpp
View File

@ -159,7 +159,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
char const* command_to_run = nullptr;
char const* file_to_read_from = nullptr;
Vector<char const*> script_args;
Vector<String> script_args;
bool skip_rc_files = false;
char const* format = nullptr;
bool should_format_live = false;
@ -228,12 +228,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
shell->cache_path();
}
{
Vector<String> args;
for (auto* arg : script_args)
args.empend(arg);
shell->set_local_variable("ARGV", adopt_ref(*new Shell::AST::ListValue(move(args))));
}
shell->set_local_variable("ARGV", adopt_ref(*new Shell::AST::ListValue(move(script_args))));
if (command_to_run) {
dbgln("sh -c '{}'\n", command_to_run);