Use 'table' during internal->external (#898)

* Use 'table' during internal->external

* Preserve more of config

crates/nu-command/src/system/run_external.rs

@@ -8,7 +8,7 @@ use std::sync::mpsc;
 use nu_engine::env_to_strings;
 use nu_protocol::engine::{EngineState, Stack};
 use nu_protocol::{ast::Call, engine::Command, ShellError, Signature, SyntaxShape, Value};
-use nu_protocol::{Category, Config, PipelineData, RawStream, Span, Spanned};
+use nu_protocol::{Category, PipelineData, RawStream, Span, Spanned};
 
 use itertools::Itertools;
 
@@ -96,7 +96,7 @@ impl Command for External {
             last_expression,
             env_vars: env_vars_str,
         };
-        command.run_with_input(engine_state, input, config)
+        command.run_with_input(engine_state, stack, input)
     }
 }
 
@@ -111,8 +111,8 @@ impl ExternalCommand {
     pub fn run_with_input(
         &self,
         engine_state: &EngineState,
+        stack: &mut Stack,
         input: PipelineData,
-        config: Config,
     ) -> Result<PipelineData, ShellError> {
         let head = self.name.span;
 
@@ -155,33 +155,42 @@ impl ExternalCommand {
                 self.name.span,
             )),
             Ok(mut child) => {
-                // if there is a string or a stream, that is sent to the pipe std
-                if let Some(mut stdin_write) = child.stdin.take() {
-                    std::thread::spawn(move || {
-                        for value in input.into_iter() {
-                            match value {
-                                Value::String { val, span: _ } => {
-                                    if stdin_write.write(val.as_bytes()).is_err() {
-                                        return Ok(());
-                                    }
-                                }
-                                Value::Binary { val, span: _ } => {
-                                    if stdin_write.write(&val).is_err() {
-                                        return Ok(());
-                                    }
-                                }
-                                x => {
-                                    if stdin_write
-                                        .write(x.into_string(", ", &config).as_bytes())
-                                        .is_err()
-                                    {
+                if !input.is_nothing() {
+                    let engine_state = engine_state.clone();
+                    let mut stack = stack.clone();
+                    stack.update_config(
+                        "use_ansi_coloring",
+                        Value::Bool {
+                            val: false,
+                            span: Span::new(0, 0),
+                        },
+                    );
+                    // if there is a string or a stream, that is sent to the pipe std
+                    if let Some(mut stdin_write) = child.stdin.take() {
+                        std::thread::spawn(move || {
+                            let input = crate::Table::run(
+                                &crate::Table,
+                                &engine_state,
+                                &mut stack,
+                                &Call::new(),
+                                input,
+                            );
+
+                            if let Ok(input) = input {
+                                for value in input.into_iter() {
+                                    if let Value::String { val, span: _ } = value {
+                                        if stdin_write.write(val.as_bytes()).is_err() {
+                                            return Ok(());
+                                        }
+                                    } else {
                                         return Err(());
                                     }
                                 }
                             }
-                        }
-                        Ok(())
-                    });
+
+                            Ok(())
+                        });
+                    }
                 }
 
                 let last_expression = self.last_expression;