reactor wit vendor subtree

.github/workflows/ci.yaml

@@ -16,9 +16,7 @@ jobs:
 
     steps:
       - name: Clone repo
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
+        uses: actions/checkout@v7
 
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@stable

.github/workflows/create_release_pr.yaml

@@ -13,9 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone repo
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
+        uses: actions/checkout@v7
 
       - name: Create GitHub PR for release branch
         env:

.github/workflows/fossa.yaml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v7
 
       - name: Install FOSSA CLI
         run: |

.github/workflows/release.yaml

@@ -46,9 +46,7 @@ jobs:
 
     steps:
       - name: Clone repo
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
+        uses: actions/checkout@v7
 
       - name: Get the release version from the tag
         shell: bash

CLAUDE.md

@@ -25,7 +25,7 @@ cargo run --bin fastedge-run -- http --port 8080 --wasm ./my_app.wasm
 
 ## Repository setup gotchas
 
-- **WIT is a git submodule.** `crates/reactor/wit/` is the `FastEdge-wit` repo. After clone or branch switches that touch it, run `git submodule update --init --recursive -f`. Without this, `crates/reactor` (and everything that depends on it) fails to build because `bindgen!` can't find the `.wit` files.
+- **WIT is vendored via git subtree.** `crates/reactor/wit/` contains the `FastEdge-wit` sources directly, so no `git submodule update` step is required after clone or branch switches. To sync it with upstream, run `git subtree pull --prefix=crates/reactor/wit https://github.com/G-Core/FastEdge-wit.git main --squash`.
 - **Custom Wasmtime fork.** All `wasmtime-*` deps point at `github.com/G-Core/wasmtime.git#release-36.0.0`. `.cargo/config.toml` contains a commented-out `[patch]` block that redirects those to a local sibling `../wasmtime` checkout — uncomment when developing against a local Wasmtime tree.
 - **Wasm components vs core modules.** `componentize_if_necessary` (in `crates/runtime/src/lib.rs`) auto-wraps core modules using the bundled Preview1 adapter (`crates/runtime/src/adapters/wasi_snapshot_preview1.reactor.wasm`). Don't replace that adapter casually — it's pinned to the Wasmtime fork.
 

README.md

@@ -11,9 +11,15 @@ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
 source "$HOME/.cargo/env"
 ```
 
-## Pull submodules
+## WIT subtree
 
-Run `git submodule update --init --recursive -f`
+`crates/reactor/wit/` is vendored directly in this repository, so cloning the repo is enough to build.
+
+To refresh the WIT definitions from the upstream `FastEdge-wit` repository, run:
+
+```bash
+git subtree pull --prefix=crates/reactor/wit https://github.com/G-Core/FastEdge-wit.git main --squash
+```
 
 ## Building
 

crates/reactor/wit/LICENSE

@@ -0,0 +1,161 @@
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crates/reactor/wit/README.md

@@ -0,0 +1,15 @@
+# Wasm Interface Type (WIT)
+
+This directory is synced from the upstream `FastEdge-wit` repository with [git subtree](https://www.atlassian.com/git/tutorials/git-subtree). That keeps the WIT files available directly in this repository while still allowing updates from the upstream source.
+
+To add the WIT definitions to another repository as a subtree, run:
+
+```sh
+git subtree add --prefix=<path> https://github.com/G-Core/FastEdge-wit.git main --squash
+```
+
+To refresh an existing subtree from upstream, run:
+
+```sh
+git subtree pull --prefix=<path> https://github.com/G-Core/FastEdge-wit.git main --squash
+```

crates/reactor/wit/cache-sync.wit

@@ -0,0 +1,72 @@
+/// FastEdge cache interface (synchronous variant).
+interface cache-sync {
+  use cache-types.{payload, error};
+
+  /// Get the value associated with `key`.
+  ///
+  /// Returns:
+  /// - `ok(some(value))` if the key exists.
+  /// - `ok(none)` if the key does not exist.
+  /// - `err(error)` if the operation fails.
+  get: func(key: string) -> result<option<payload>, error>;
+
+  /// Set the value for `key` with an optional expiry.
+  ///
+  /// If the key already exists, its current value is overwritten.
+  /// If the key does not exist, a new key-value pair is created.
+  ///
+  /// `ttl-ms` is the time-to-live in milliseconds. Pass `none` for no expiry.
+  ///
+  /// Returns `err(error)` if the operation fails.
+  set: func(key: string, value: payload, ttl-ms: option<u64>) -> result<_, error>;
+
+  /// Delete the key-value pair associated with `key`.
+  ///
+  /// If the key does not exist, this operation is a no-op.
+  ///
+  /// Returns `err(error)` if the operation fails.
+  delete: func(key: string) -> result<_, error>;
+
+  /// Check whether `key` exists in the cache.
+  ///
+  /// Returns:
+  /// - `ok(true)` if the key exists.
+  /// - `ok(false)` if the key does not exist.
+  /// - `err(error)` if the operation fails.
+  exists: func(key: string) -> result<bool, error>;
+
+  /// Increment the integer value stored at `key` by `delta`.
+  ///
+  /// If the key does not exist, it is initialised to `0` before incrementing.
+  /// The operation is atomic. `delta` may be negative to decrement.
+  ///
+  /// Returns the new value after the increment, or `err(error)` if the
+  /// operation fails (for example, if the stored value is not an integer).
+  incr: func(key: string, delta: s64) -> result<s64, error>;
+
+  /// Set or update the expiry of `key` to `ttl-ms` milliseconds from now.
+  ///
+  /// If the key does not exist, returns `ok(false)`.
+  /// If the expiry was updated successfully, returns `ok(true)`.
+  /// Returns `err(error)` if the operation fails.
+  expire: func(key: string, ttl-ms: u64) -> result<bool, error>;
+
+  /// Purge all cache entries owned by the calling application.
+  ///
+  /// The host scans the application's key index, deletes every cached key,
+  /// and then removes the index itself.
+  ///
+  /// Returns the number of keys that were deleted, or `err(error)` if the
+  /// operation fails.
+  purge: func() -> result<u64, error>;
+
+  /// Purge all cache entries whose keys begin with `prefix`.
+  ///
+  /// The host scans the application's key index for keys that begin with the
+  /// given prefix, deletes every matched key, and removes the matched entries
+  /// from the index (the index itself is kept for any remaining keys).
+  ///
+  /// Returns the number of keys that were deleted, or `err(error)` if the
+  /// operation fails.
+  purge-prefix: func(prefix: string) -> result<u64, error>;
+}

crates/reactor/wit/cache-types.wit

@@ -0,0 +1,15 @@
+/// Shared cache types for cache interfaces.
+interface cache-types {
+  type payload = list<u8>;
+
+  /// The set of errors that may be returned by cache operations.
+  variant error {
+    /// The requesting component does not have access to the specified cache
+    /// (which may or may not exist).
+    access-denied,
+    /// An unexpected internal error occurred.
+    internal-error,
+    /// An implementation-specific error occurred (for example, I/O).
+    other(string)
+  }
+}

crates/reactor/wit/dictionary.wit

@@ -0,0 +1,6 @@
+interface dictionary {
+  /// Get the value associated with the specified `key`
+  ///
+  /// Returns `ok(none)` if the key does not exist.
+  get: func(key: string) -> option<string>;
+}

crates/reactor/wit/http-client.wit

@@ -0,0 +1,5 @@
+interface http-client {
+    use http.{request, response, error};
+
+    send-request: func(req: request) -> result<response, error>;
+}

crates/reactor/wit/http-handler.wit

@@ -0,0 +1,4 @@
+interface http-handler {
+    use http.{request, response};
+    process: func(req: request) -> response;
+}

crates/reactor/wit/http.wit

@@ -0,0 +1,38 @@
+interface http {
+    type http-status = u16;
+    type body = list<u8>;
+    type headers = list<tuple<string, string>>;
+    type uri = string;
+
+    enum method {
+        get,
+        post,
+        put,
+        delete,
+        head,
+        patch,
+        options
+    }
+
+    record request {
+        method: method,
+        uri: uri,
+        headers: headers,
+        body: option<body>,
+    }
+
+    record response {
+        status: http-status,
+        headers: option<headers>,
+        body: option<body>,
+    }
+
+    enum error {
+        success,
+        destination-not-allowed,
+        invalid-url,
+        request-error,
+        runtime-error,
+        too-many-requests,
+    }
+}