mirrors/serenity
1
0
Fork 0
mirror of https://github.com/SerenityOS/serenity.git synced 2025-01-24 10:22:05 -05:00
Code Issues Projects Releases Packages Wiki Activity

Shell: Add a not builtin

Browse source 
`not` just takes a command, runs it, then negates its exit code (0->1,
non-zero->0).
This commit is contained in:
AnotherTest 2021-01-18 10:05:00 +03:30 • committed by Andreas Kling
parent 2843526513
commit 50473003be
2 changed files with 20 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
Userland/Shell/Builtin.cpp
View file

@ -879,6 +879,25 @@ int Shell::builtin_unset(int argc, const char** argv)
return 0;
}
int Shell::builtin_not(int argc, const char** argv)
{
// FIXME: Use ArgsParser when it can collect unrelated -arguments too.
if (argc == 1)
return 1;
AST::Command command;
for (size_t i = 1; i < (size_t)argc; ++i)
command.argv.append(argv[i]);
auto commands = expand_aliases({ move(command) });
int exit_code = 1;
for (auto& job : run_commands(commands)) {
block_on_job(job);
exit_code = job.exit_code();
}
return exit_code == 0 ? 1 : 0;
}
bool Shell::run_builtin(const AST::Command& command, const NonnullRefPtrVector<AST::Rewiring>& rewirings, int& retval)
{
if (command.argv.is_empty())

1
Userland/Shell/Shell.h
View file

@ -52,6 +52,7 @@
__ENUMERATE_SHELL_BUILTIN(unset) \
__ENUMERATE_SHELL_BUILTIN(history) \
__ENUMERATE_SHELL_BUILTIN(umask) \
__ENUMERATE_SHELL_BUILTIN(not ) \
__ENUMERATE_SHELL_BUILTIN(dirs) \
__ENUMERATE_SHELL_BUILTIN(pushd) \
__ENUMERATE_SHELL_BUILTIN(popd) \