fix(windows-build): ssh-agent err when building on windows

Cargo.lock

@@ -1906,6 +1906,7 @@ dependencies = [
  "log",
  "mongodb",
  "mysql_async",
+ "pageant",
  "percent-encoding",
  "portpicker",
  "rayon",

crates/dbx-core/Cargo.toml

@@ -39,6 +39,7 @@ futures = "0.3"
 iana-time-zone = "0.1"
 mongodb = "3.2.5"
 russh = "0.60"
+pageant = "0.2"
 portpicker = "0.1.1"
 csv = "1"
 calamine = "0.30.1"

crates/dbx-core/src/db/ssh_tunnel.rs

@@ -112,6 +112,7 @@ async fn try_authenticate_with_agent(
     ssh_user: &str,
     connect_timeout: &Duration,
 ) -> Result<(), String> {
+    #[cfg(unix)]
     let mut agent = match AgentClient::connect_env().await {
         Ok(a) => a,
         Err(e) => {
@@ -119,6 +120,14 @@ async fn try_authenticate_with_agent(
         }
     };
 
+    #[cfg(windows)]
+    let mut agent = {
+        let stream = pageant::PageantStream::new()
+            .await
+            .map_err(|e| format!("No SSH password or key provided, and ssh-agent (Pageant) is unavailable: {e}"))?;
+        AgentClient::connect(stream)
+    };
+
     let identities = match agent.request_identities().await {
         Ok(ids) if ids.is_empty() => {
             return Err("No SSH password or key provided, and ssh-agent has no identities".to_string());

crates/dbx-core/src/plugins.rs

@@ -433,6 +433,7 @@ fn spawn_plugin_child(plugin: &InstalledPlugin, env: &PluginRuntimeEnv) -> Resul
 
     #[cfg(windows)]
     {
+        #[allow(unused_imports)]
         use std::os::windows::process::CommandExt;
         command.creation_flags(CREATE_NO_WINDOW);
     }