More fixes to key deployment and logging

src/command/apply.rs

@@ -175,11 +175,16 @@ pub async fn run(_global_args: &ArgMatches<'_>, local_args: &ArgMatches<'_>) {
 
     let mut options = DeploymentOptions::default();
     options.set_substituters_push(!local_args.is_present("no-substitutes"));
-    options.set_upload_keys(!local_args.is_present("no-upload-keys"));
     options.set_gzip(!local_args.is_present("no-gzip"));
     options.set_progress_bar(!local_args.is_present("verbose"));
+    options.set_upload_keys(!local_args.is_present("no-keys"));
     deployment.set_options(options);
 
+    if local_args.is_present("no-keys") && goal_arg == "keys" {
+        log::error!("--no-keys cannot be used when the goal is to upload keys");
+        quit::with_code(1);
+    }
+
     let mut parallelism_limit = ParallelismLimit::default();
     parallelism_limit.set_apply_limit({
         let limit = local_args.value_of("parallel").unwrap().parse::<usize>().unwrap();

src/nix/host/local.rs

@@ -130,7 +130,13 @@ impl Local {
                 .arg(&temp_path);
 
             let mut execution = CommandExecution::new("local", command);
-            execution.run().await?;
+            let exit = execution.run().await;
+
+            let (stdout, stderr) = execution.get_logs();
+            self.logs += stdout.unwrap();
+            self.logs += stderr.unwrap();
+
+            exit?;
         }
         {
             let mut command = Command::new("chown");
@@ -139,7 +145,13 @@ impl Local {
                 .arg(&temp_path);
 
             let mut execution = CommandExecution::new("local", command);
-            execution.run().await?;
+            let exit = execution.run().await;
+
+            let (stdout, stderr) = execution.get_logs();
+            self.logs += stdout.unwrap();
+            self.logs += stderr.unwrap();
+
+            exit?;
         }
 
         let parent_dir = dest_path.parent().unwrap();

src/nix/host/ssh.rs

@@ -3,13 +3,14 @@ use std::convert::TryInto;
 use std::process::Stdio;
 
 use async_trait::async_trait;
+use futures::future::join3;
 use indicatif::ProgressBar;
 use tokio::process::Command;
-use tokio::io::AsyncWriteExt;
+use tokio::io::{AsyncWriteExt, BufReader};
 
 use super::{CopyDirection, CopyOptions, Host};
 use crate::nix::{StorePath, Profile, DeploymentGoal, NixResult, NixCommand, NixError, Key, SYSTEM_PROFILE};
-use crate::util::CommandExecution;
+use crate::util::{CommandExecution, capture_stream};
 
 const DEPLOY_KEY_TEMPLATE: &'static str = include_str!("./deploy-key.template");
 
@@ -168,8 +169,8 @@ impl Ssh {
         let mut command = self.ssh(&["sh", "-c", &remote_command]);
 
         command.stdin(Stdio::piped());
-        command.stderr(Stdio::null());
-        command.stdout(Stdio::null());
+        command.stderr(Stdio::piped());
+        command.stdout(Stdio::piped());
 
         let mut child = command.spawn()?;
 
@@ -178,7 +179,20 @@ impl Ssh {
         stdin.flush().await?;
         drop(stdin);
 
-        let exit = child.wait().await?;
+        let stdout = BufReader::new(child.stdout.take().unwrap());
+        let stderr = BufReader::new(child.stderr.take().unwrap());
+
+        let futures = join3(
+            capture_stream(stdout, &self.friendly_name, self.progress_bar.clone()),
+            capture_stream(stderr, &self.friendly_name, self.progress_bar.clone()),
+            child.wait(),
+        );
+        let (stdout_str, stderr_str, exit) = futures.await;
+        self.logs += &stdout_str;
+        self.logs += &stderr_str;
+
+        let exit = exit?;
+
         if exit.success() {
             Ok(())
         } else {

src/util.rs

@@ -63,31 +63,6 @@ impl CommandExecution {
         let stdout = BufReader::new(child.stdout.take().unwrap());
         let stderr = BufReader::new(child.stderr.take().unwrap());
 
-        async fn capture_stream<R: AsyncRead + Unpin>(mut stream: BufReader<R>, label: &str, mut progress_bar: Option<ProgressBar>) -> String {
-            let mut log = String::new();
-
-            loop {
-                let mut line = String::new();
-                let len = stream.read_line(&mut line).await.unwrap();
-
-                if len == 0 {
-                    break;
-                }
-
-                let trimmed = line.trim_end();
-                if let Some(progress_bar) = progress_bar.as_mut() {
-                    progress_bar.set_message(trimmed);
-                } else {
-                    eprintln!("{} | {}", style(label).cyan(), trimmed);
-                }
-
-                log += trimmed;
-                log += "\n";
-            }
-
-            log
-        }
-
         let futures = join3(
             capture_stream(stdout, &self.label, self.progress_bar.clone()),
             capture_stream(stderr, &self.label, self.progress_bar.clone()),
@@ -243,3 +218,28 @@ fn canonicalize_cli_path(path: String) -> PathBuf {
         path.into()
     }
 }
+
+pub async fn capture_stream<R: AsyncRead + Unpin>(mut stream: BufReader<R>, label: &str, mut progress_bar: Option<ProgressBar>) -> String {
+    let mut log = String::new();
+
+    loop {
+        let mut line = String::new();
+        let len = stream.read_line(&mut line).await.unwrap();
+
+        if len == 0 {
+            break;
+        }
+
+        let trimmed = line.trim_end();
+        if let Some(progress_bar) = progress_bar.as_mut() {
+            progress_bar.set_message(trimmed);
+        } else {
+            eprintln!("{} | {}", style(label).cyan(), trimmed);
+        }
+
+        log += trimmed;
+        log += "\n";
+    }
+
+    log
+}