From 9b4f1d6858a3f2a166e609620b1a822e7246e14c Mon Sep 17 00:00:00 2001
From: karthik2804 <karthik.ganeshram@fermyon.com>
Date: Sun, 22 Sep 2024 16:28:54 +0200
Subject: [PATCH] allow satisfying component dependencies via http source

Signed-off-by: karthik2804 <karthik.ganeshram@fermyon.com>
---
 crates/loader/src/local.rs       | 8 ++++++++
 crates/manifest/src/schema/v2.rs | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/crates/loader/src/local.rs b/crates/loader/src/local.rs
index 3d5bb6304b..bc4e5ca2b1 100644
--- a/crates/loader/src/local.rs
+++ b/crates/loader/src/local.rs
@@ -313,6 +313,14 @@ impl LocalLoader {
                 let content = file_content_ref(self.app_root.join(path))?;
                 (content, export)
             }
+            v2::ComponentDependency::HTTP {
+                url,
+                digest,
+                export,
+            } => {
+                let content = self.load_http_source(&url, &digest).await?;
+                (content, export)
+            }
         };
 
         Ok(LockedComponentDependency {
diff --git a/crates/manifest/src/schema/v2.rs b/crates/manifest/src/schema/v2.rs
index 4397dbccc3..61d0ac0f47 100644
--- a/crates/manifest/src/schema/v2.rs
+++ b/crates/manifest/src/schema/v2.rs
@@ -135,6 +135,15 @@ pub enum ComponentDependency {
         /// Optional export name
         export: Option<String>,
     },
+    /// `... = { url = "https://example.com/component.wasm", sha256 = "..." }`
+    HTTP {
+        /// URL to Wasm
+        url: String,
+        /// SHA256 Checksum of the component. The string should start with 'sha256:'
+        digest: String,
+        /// Optional export name
+        export: Option<String>,
+    },
 }
 
 /// Component definition