fix docker credential helper when credentials are not found

package.json

@@ -1,6 +1,6 @@
 {
   "name": "creddy",
-  "version": "0.6.1",
+  "version": "0.6.2",
   "scripts": {
     "dev": "vite",
     "build": "vite build",

src-tauri/Cargo.lock

@@ -1217,7 +1217,7 @@ dependencies = [
 
 [[package]]
 name = "creddy"
-version = "0.6.1"
+version = "0.6.2"
 dependencies = [
  "argon2",
  "auto-launch",

src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "creddy"
-version = "0.6.1"
+version = "0.6.2"
 description = "A friendly AWS credentials manager"
 authors = ["Joseph Montanaro"]
 license = ""

src-tauri/creddy_cli/src/cli/docker.rs

@@ -29,11 +29,20 @@ pub fn docker_get(global_args: GlobalArgs) -> anyhow::Result<()> {
        server_url: server_url.trim().to_owned()
     };
 
-    match super::make_request(global_args.server_addr, &req)?? {
-        CliResponse::Credential(CliCredential::Docker(d)) => {
+    let server_resp = super::make_request(global_args.server_addr, &req)?;
+    match server_resp {
+        Ok(CliResponse::Credential(CliCredential::Docker(d))) => {
             println!("{}", serde_json::to_string(&d)?);
         },
-        r => bail!("Unexpected response from server: {r}"),
+        Err(e) if e.code == "NoCredentials" => {
+            // To indicate credentials are not found, a credential helper *must* print
+            // this message to stdout, then exit 1. Any other message/status will cause
+            // some builds to fail. This is, of course, not documented anywhere.
+            println!("credentials not found in native keychain");
+            std::process::exit(1);
+        },
+        Err(e) => Err(e)?,
+        Ok(r) => bail!("Unexpected response from server: {r}"),
     }
     Ok(())
 }

src-tauri/creddy_cli/src/lib.rs

@@ -27,8 +27,7 @@ mod platform {
     use tokio::net::UnixStream;
 
     pub async fn connect(addr: Option<PathBuf>) -> Result<UnixStream, std::io::Error> {
-        let default = if cfg!(debug_assertions) { "creddy-server-dev" } else { "creddy-server" };
-        let path = addr.unwrap_or_else(|| server_addr(default));
+        let path = addr.unwrap_or_else(|| server_addr("creddy-server"));
         UnixStream::connect(&path).await
     }
 

src-tauri/creddy_cli/src/proto.rs

@@ -99,8 +99,8 @@ pub struct DockerCredential {
 
 #[derive(Debug, Serialize, Deserialize)]
 pub struct ServerError {
-    code: String,
-    msg: String,
+    pub code: String,
+    pub msg: String,
 }
 
 impl Display for ServerError {

src-tauri/tauri.conf.json

@@ -50,7 +50,7 @@
     }
   },
   "productName": "creddy",
-  "version": "0.6.1",
+  "version": "0.6.2",
   "identifier": "creddy",
   "plugins": {},
   "app": {