solana-labs is now agave-xyz, latest agave-geyser-plugin-interface is using 1.84.1, add helperscript to keep rust version consistent

Author: nyetwurk

.github/workflows/test.yml

@@ -50,7 +50,7 @@ jobs:
           path: |
             ~/.cargo/registry
             ~/.cargo/git
-          key: ${{ matrix.os }}-cargo-build-${{ hashFiles('**/Cargo.lock', 'rust-toolchain') }}-${{ env.RUST_STABLE }}
+          key: ${{ matrix.os }}-cargo-build-${{ hashFiles('**/Cargo.lock', 'rust-toolchain.toml') }}-${{ env.RUST_STABLE }}
 
       - name: cargo fmt
         uses: actions-rs/cargo@v1

rust-toolchain

@@ -0,0 +1,4 @@
+# see also upstream solana/rust-toolchain.toml
+# https://github.com/anza-xyz/agave/blob/master/rust-toolchain.toml
+[toolchain]
+channel = "1.84.1"

rust-toolchain.toml

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Get agave-geyser-plugin-interface version from Cargo.lock
+AGAVE_VERSION=$(grep -A 1 'name = "agave-geyser-plugin-interface"' Cargo.lock | grep version | cut -d'"' -f2)
+echo "Found agave-geyser-plugin-interface version: $AGAVE_VERSION"
+
+# Get Agave's rust-toolchain.toml version based on the agave-geyser-plugin-interface version
+VERSION=$(curl -s "https://raw.githubusercontent.com/anza-xyz/agave/v$AGAVE_VERSION/rust-toolchain.toml" | grep channel | cut -d'"' -f2)
+echo "Found Agave's rust-toolchain.toml version: $VERSION"
+
+# Check current version
+CURRENT_VERSION=$(grep channel rust-toolchain.toml | cut -d'"' -f2)
+echo "Current rust-toolchain.toml version: $CURRENT_VERSION"
+
+if [ "$CURRENT_VERSION" != "$VERSION" ]; then
+    echo "Updating rust-toolchain.toml to $VERSION"
+    sed -i '' "s/channel = \".*\"/channel = \"$VERSION\"/" rust-toolchain.toml
+else
+    echo "rust-toolchain.toml is already up to date"
+fi