From c4cd1e2c165c4f34ebf67fa9350f8732b2aeca13 Mon Sep 17 00:00:00 2001
From: Rory Dudley
Date: Tue, 4 Jun 2024 16:25:32 -0600
Subject: Updated the way built-in commands are called/used

Previously, built-in commands were fairly primitive, merely outputting
STDOUT and STDERR with the print! macros. However, we need them to
behave like normal programs, that is:

  - Acknowledge their verse's meter (forking, piping, etc.),
  - Ability to capture STDOUT and STDERR (>, 2>),
  - and Affect the currently running environment.

For these reasons, the anthology was reworked, and now contains the
Anthology struct, which mimics both std::process::{Child, Command}.

The AnthologyStdin helper struct was also created, for built-ins to
take input on STDIN, though no built-in is currently using it.

Each built-ins' incant functions were updated to return a
std::process::Output. It contains output from STDOUT, output from
STDERR, and the exit code of the "process".

A fix was also implemented for aliases, where the STDOUT and STDERR
vectors were not being copied to the newly constructed verse.
---
 src/poem/anthology/exit.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/poem/anthology/exit.rs')

diff --git a/src/poem/anthology/exit.rs b/src/poem/anthology/exit.rs
index 46fe13c..6bbaa33 100644
--- a/src/poem/anthology/exit.rs
+++ b/src/poem/anthology/exit.rs
@@ -1,4 +1,5 @@
 use std::process::exit;
+use std::process::Output;
 
 /// exit
 ///
@@ -7,6 +8,6 @@ use std::process::exit;
 /// # Aliases
 /// * exit
 /// * quit
-pub fn incant() -> i32 {
+pub fn incant() -> Output {
     exit(0);
 }
-- 
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