Check for SSH key errors. Closes #31

rs/crates/rq-core/src/github.rs

@@ -1,4 +1,4 @@
-use anyhow::{ensure, Context, Result};
+use anyhow::{bail, ensure, Context, Result};
 use futures_util::future::try_join_all;
 use http::StatusCode;
 use octocrab::{
@@ -84,6 +84,19 @@ pub async fn load_user() -> Result<String> {
   Ok(user.login)
 }
 
+pub fn check_ssh() -> Result<()> {
+  let output = command("ssh -T [email protected]", Path::new("/")).output()?;
+  if !output.status.success() {
+    let stderr = String::from_utf8(output.stderr)?;
+    if stderr.trim() == "[email protected]: Permission denied (publickey)." {
+      bail!("Your machine is not setup for a secure connection to Github. Please follow the instructions here: https://docs.github.com/en/authentication/troubleshooting-ssh/error-permission-denied-publickey");
+    } else {
+      bail!("Failed to establish a secure connection to Github with error:\n{stderr}")
+    }
+  }
+  Ok(())
+}
+
 pub enum GitProtocol {
   Ssh,
   Https,

rs/crates/rq-core/src/quest.rs

@@ -2,7 +2,7 @@ use std::{borrow::Cow, collections::HashMap, path::PathBuf, time::Duration};
 
 use crate::{
   git::{GitRepo, UPSTREAM},
-  github::{load_user, GithubRepo, PullSelector},
+  github::{self, load_user, GithubRepo, PullSelector},
   package::QuestPackage,
   stage::{Stage, StagePart, StagePartStatus},
   template::{InstanceOutputs, PackageTemplate, QuestTemplate, RepoTemplate},
@@ -135,6 +135,8 @@ impl Quest {
     source: CreateSource,
     state_event: Box<dyn StateEmitter>,
   ) -> Result<Self> {
+    github::check_ssh()?;
+
     let template: Box<dyn QuestTemplate> = match source {
       CreateSource::Remote { user, repo } => {
         let upstream = GithubRepo::load(&user, &repo).await?;