feat: extract client (#48)

This extracts the client (strategy pattern), this is so that it is will be possible to test the actual querier, without hitting / requiring the dagger-engine running.

crates/dagger-codegen/src/rust/functions.rs

@@ -247,7 +247,7 @@ fn render_execution(funcs: &CommonFunctions, field: &FullTypeFields) -> rust::To
             return $(output_type) {
                 proc: self.proc.clone(),
                 selection: query,
-                conn: self.conn.clone(),
+                graphql_client: self.graphql_client.clone(),
             }
         };
     }
@@ -273,15 +273,13 @@ fn render_execution(funcs: &CommonFunctions, field: &FullTypeFields) -> rust::To
             return vec![$(output_type) {
                 proc: self.proc.clone(),
                 selection: query,
-                conn: self.conn.clone(),
+                graphql_client: self.graphql_client.clone(),
             }]
         };
     }
 
-    let graphql_client = rust::import("crate::client", "graphql_client");
-
     quote! {
-        query.execute(&$graphql_client(&self.conn)).await
+        query.execute(self.graphql_client.clone()).await
     }
 }
 

crates/dagger-codegen/src/rust/templates/object_tmpl.rs

@@ -12,15 +12,15 @@ use crate::utility::OptionExt;
 pub fn render_object(funcs: &CommonFunctions, t: &FullType) -> eyre::Result<rust::Tokens> {
     let selection = rust::import("crate::querybuilder", "Selection");
     let child = rust::import("tokio::process", "Child");
-    let conn = rust::import("dagger_core::connect_params", "ConnectParams");
+    let graphql_client = rust::import("dagger_core::graphql_client", "DynGraphQLClient");
     let arc = rust::import("std::sync", "Arc");
 
     Ok(quote! {
-        #[derive(Debug, Clone)]
+        #[derive(Clone)]
         pub struct $(t.name.pipe(|s| format_name(s))) {
             pub proc: $arc<$child>,
             pub selection: $selection,
-            pub conn: $conn,
+            pub graphql_client: $graphql_client
         }
 
         $(t.fields.pipe(|f| render_optional_args(funcs, f)))

crates/dagger-core/Cargo.toml

@@ -17,6 +17,8 @@ tokio = { workspace = true }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
 
+base64 = "0.21.0"
+gql_client = "1.0.7"
 dirs = "4.0.0"
 flate2 = { version = "1.0.25", features = ["zlib"] }
 graphql-introspection-query = "0.2.0"
@@ -28,3 +30,4 @@ reqwest = { version = "0.11.14", features = ["stream", "deflate"] }
 sha2 = "0.10.6"
 tar = "0.4.38"
 tempfile = "3.3.0"
+async-trait = "0.1.67"

crates/dagger-core/src/graphql_client.rs

@@ -0,0 +1,52 @@
+use std::collections::HashMap;
+use std::sync::Arc;
+
+use async_trait::async_trait;
+use base64::engine::general_purpose;
+use base64::Engine;
+use gql_client::ClientConfig;
+
+use crate::connect_params::ConnectParams;
+
+#[async_trait]
+pub trait GraphQLClient {
+    async fn query(&self, query: &str) -> eyre::Result<Option<serde_json::Value>>;
+}
+
+pub type DynGraphQLClient = Arc<dyn GraphQLClient + Send + Sync>;
+
+#[derive(Debug)]
+pub struct DefaultGraphQLClient {
+    client: gql_client::Client,
+}
+
+impl DefaultGraphQLClient {
+    pub fn new(conn: &ConnectParams) -> Self {
+        let token = general_purpose::URL_SAFE.encode(format!("{}:", conn.session_token));
+
+        let mut headers = HashMap::new();
+        headers.insert("Authorization".to_string(), format!("Basic {}", token));
+
+        Self {
+            client: gql_client::Client::new_with_config(ClientConfig {
+                endpoint: conn.url(),
+                timeout: Some(1000),
+                headers: Some(headers),
+                proxy: None,
+            }),
+        }
+    }
+}
+
+#[async_trait]
+impl GraphQLClient for DefaultGraphQLClient {
+    async fn query(&self, query: &str) -> eyre::Result<Option<serde_json::Value>> {
+        let res: Option<serde_json::Value> = self
+            .client
+            .query(&query)
+            .await
+            .map_err(|r| eyre::anyhow!(r.to_string()))?;
+
+        return Ok(res);
+    }
+}

crates/dagger-core/src/lib.rs

@@ -7,6 +7,7 @@ pub mod config;
 pub mod connect_params;
 pub mod downloader;
 pub mod engine;
+pub mod graphql_client;
 pub mod introspection;
 pub mod logger;
 pub mod schema;

crates/dagger-sdk/Cargo.toml

@@ -20,9 +20,7 @@ serde_json = { workspace = true }
 tracing.workspace = true
 tracing-subscriber.workspace = true
 
-base64 = "0.21.0"
 futures = "0.3.27"
-gql_client = "1.0.7"
 derive_builder = "0.12.0"
 
 [dev-dependencies]

crates/dagger-sdk/src/client.rs

@@ -1,12 +1,8 @@
-use std::collections::HashMap;
 use std::sync::Arc;
 
-use base64::engine::general_purpose;
-use base64::Engine;
-use gql_client::ClientConfig;
+use dagger_core::graphql_client::DefaultGraphQLClient;
 
 use dagger_core::config::Config;
-use dagger_core::connect_params::ConnectParams;
 use dagger_core::engine::Engine as DaggerEngine;
 
 use crate::gen::Query;
@@ -25,26 +21,12 @@ pub async fn connect_opts(cfg: Config) -> eyre::Result<DaggerConn> {
     let (conn, proc) = DaggerEngine::new().start(&cfg).await?;
 
     Ok(Arc::new(Query {
-        conn,
         proc: Arc::new(proc),
         selection: query(),
+        graphql_client: Arc::new(DefaultGraphQLClient::new(&conn)),
     }))
 }
 
-pub fn graphql_client(conn: &ConnectParams) -> gql_client::Client {
-    let token = general_purpose::URL_SAFE.encode(format!("{}:", conn.session_token));
-
-    let mut headers = HashMap::new();
-    headers.insert("Authorization".to_string(), format!("Basic {}", token));
-
-    gql_client::Client::new_with_config(ClientConfig {
-        endpoint: conn.url(),
-        timeout: Some(1000),
-        headers: Some(headers),
-        proxy: None,
-    })
-}
-
 // Conn will automatically close on drop of proc
 
 #[cfg(test)]

crates/dagger-sdk/src/querybuilder.rs

@@ -1,5 +1,6 @@
 use std::{collections::HashMap, ops::Add, sync::Arc};
 
+use dagger_core::graphql_client::DynGraphQLClient;
 use eyre::Context;
 use serde::{Deserialize, Serialize};
 
@@ -116,7 +117,7 @@ impl Selection {
         Ok(fields.join("{") + &"}".repeat(fields.len() - 1))
     }
 
-    pub async fn execute<D>(&self, gql_client: &gql_client::Client) -> eyre::Result<D>
+    pub async fn execute<D>(&self, gql_client: DynGraphQLClient) -> eyre::Result<D>
     where
         D: for<'de> Deserialize<'de>,
     {