Give descriptive error instead of allowing starting a node with forc …

…run. (FuelLabs#786)

forc/src/ops/forc_run.rs

@@ -1,7 +1,7 @@
 use fuel_gql_client::client::FuelClient;
 use fuel_tx::Transaction;
 use futures::TryFutureExt;
-use std::io::{self, Write};
+
 use std::path::PathBuf;
 use std::str::FromStr;
 use sway_core::{parse, TreeType};
@@ -10,7 +10,6 @@ use tokio::process::Child;
 use crate::cli::{BuildCommand, RunCommand};
 use crate::ops::forc_build;
 use crate::utils::cli_error::CliError;
-use crate::utils::client::start_fuel_core;
 
 use crate::utils::helpers;
 use helpers::{get_main_file, read_manifest};
@@ -116,23 +115,7 @@ async fn try_send_tx(
             send_tx(&client, tx, pretty_print).await?;
             Ok(None)
         }
-        Err(_) => {
-            print!(
-                "We noticed you don't have fuel-core running, would you like to start a node [y/n]?"
-            );
-            io::stdout().flush().unwrap();
-            let mut reply = String::new();
-            io::stdin().read_line(&mut reply)?;
-            let reply = reply.trim().to_lowercase();
-
-            if reply == "y" || reply == "yes" {
-                let child = start_fuel_core(node_url, &client).await?;
-                send_tx(&client, tx, pretty_print).await?;
-                Ok(Some(child))
-            } else {
-                Ok(None)
-            }
-        }
+        Err(_) => Err(CliError::fuel_core_not_running(node_url)),
     }
 }
 

forc/src/utils/cli_error.rs

@@ -38,6 +38,11 @@ impl CliError {
         );
         Self { message }
     }
+
+    pub fn fuel_core_not_running(node_url: &str) -> Self {
+        let message = format!("could not get a response from node at the URL {}. Start a node with `fuel-core`. See <https://github.com/FuelLabs/fuel-core#running> for more information", node_url);
+        Self { message }
+    }
 }
 
 impl fmt::Display for CliError {