HUGE `mlc info` speedup when pulling through ssh

src/operations/info.rs

@@ -1,6 +1,7 @@
 use colored::Colorize;
 use spinoff::{Color, Spinner, Spinners};
 use std::env;
+use std::fmt::Write;
 use std::process::Command;
 use tabled::Tabled;
 
@@ -46,11 +47,6 @@ pub fn git_status(verbose: bool, repo: &str, colorblind: bool) -> String {
     });
     log!(verbose, "Current directory: {}", repo);
 
-    Command::new("git")
-        .args(&["remote", "update"])
-        .output()
-        .unwrap();
-
     let output = Command::new("git").arg("status").output().unwrap();
     let output = String::from_utf8(output.stdout).unwrap();
     log!(verbose, "Git status: {}", output);
@@ -126,6 +122,26 @@ pub fn info(verbose: bool) {
         Color::Green,
     );
 
+    // Construct bash script to run git remote upgrade on all repos asynchronously
+    // This helps speed up the operation when, for example, you have a lot of repositories and you store your SSH key as a subkey of your GPG key on a yubikey
+    // This took my `mlc info` time down from 17s to 8s (i have the above described setup)
+    let mut bash_script = String::new();
+    bash_script.push_str("\n\
+    #!/usr/bin/env bash\n\
+    \n\
+    # This script will run `git remote update` in all repositories\n\
+    pull() { cd $1; git remote update; cd -; }\n\
+    \n");
+    for repo in &repos_unparsed {
+        writeln!(bash_script, "pull {} &", repo.name).unwrap();
+    }
+    bash_script.push_str("wait\n");
+
+    log!(verbose, "Bash script: {}", bash_script);
+
+    // Run the bash script
+    Command::new("bash").arg("-c").arg(bash_script).output().unwrap();
+
     // Iterate over all repositories
     for repo in repos_unparsed {
         // Get name with branch, '/' serving as the delimiter