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Add $fish_kill_signal to track the signal that terminated a command.

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Set to `0` if the command exited normally.
This commit is contained in:
Soumya
2020-03-31 11:27:17 -07:00
committed by Johannes Altmanninger
parent 67eaefeb82
commit 61a9cdaa74
6 changed files with 32 additions and 1 deletions
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4
src/env.cpp
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@@ -93,6 +93,7 @@ static const electric_var_t electric_variables[] = {
{L"_", electric_var_t::freadonly},
{L"fish_private_mode", electric_var_t::freadonly},
{L"umask", electric_var_t::fcomputed},
{L"fish_kill_signal", electric_var_t::freadonly | electric_var_t::fcomputed},
};
const electric_var_t *electric_var_t::for_name(const wcstring &name) {
@@ -685,6 +686,9 @@ maybe_t<env_var_t> env_scoped_impl_t::try_get_computed(const wcstring &key) cons
} else if (key == L"status") {
const auto &js = perproc_data().statuses;
return env_var_t(L"status", to_string(js.status));
} else if (key == L"fish_kill_signal") {
const auto &js = perproc_data().statuses;
return env_var_t(L"fish_kill_signal", to_string(js.kill_signal));
} else if (key == L"umask") {
// note umask() is an absurd API: you call it to set the value and it returns the old
// value. Thus we have to call it twice, to reset the value. The env_lock protects