fix: Update Rust-BPF example (#406)

.travis.yml

@@ -41,7 +41,7 @@ script:
   - npm run lint
   - npm run codecov
   - make -C examples/bpf-c-noop/
-  - bpf-sdk/rust/build.sh examples/bpf-rust-noop
+  - examples/bpf-rust-noop/do.sh build
   - npm run localnet:update
   - npm run localnet:up
   - npm run examples || true

examples/bpf-rust-noop/Cargo.toml

@@ -13,10 +13,14 @@ edition = "2018"
 
 [dependencies]
 solana-sdk-bpf-utils = { path = "../../bpf-sdk/rust/rust-utils" }
+solana-sdk-bpf-no-std = { path = "../../bpf-sdk/rust/rust-no-std" }
+
+[dev_dependencies]
+solana-sdk-bpf-test = { path = "../../bpf-sdk/rust/rust-test"}
 
 [workspace]
 members = []
 
 [lib]
-crate-type = ["cdylib"]
 name = "solana_bpf_rust_noop"
+crate-type = ["cdylib"]

examples/bpf-rust-noop/do.sh

@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+
+cd "$(dirname "$0")"
+
+usage() {
+    cat <<EOF
+
+Usage: do.sh action <project>
+
+If relative_project_path is ommitted then action will
+be performed on all projects
+
+Supported actions:
+    build
+    clean
+    test
+    clippy
+    fmt
+
+EOF
+}
+
+perform_action() {
+    set -e
+    case "$1" in
+    build)
+         ../../bpf-sdk/rust/build.sh "$PWD"
+        ;;
+    clean)
+         ../../bpf-sdk/rust/clean.sh "$PWD"
+        ;;
+    test)
+            echo "test $2"
+            cargo +nightly test
+        ;;
+    clippy)
+            echo "clippy $2"
+            cargo +nightly clippy
+        ;;
+    fmt)
+            echo "formatting $2"
+            cargo fmt
+        ;;
+    help)
+        usage
+        exit
+        ;;
+    *)
+        echo "Error: Unknown command"
+        usage
+        exit
+        ;;
+    esac
+}
+
+set -e
+
+perform_action "$1"

examples/bpf-rust-noop/src/lib.rs

@@ -4,6 +4,8 @@
 #![allow(unreachable_code)]
 #![allow(unused_attributes)]
 
+#[cfg(not(test))]
+extern crate solana_sdk_bpf_no_std;
 extern crate solana_sdk_bpf_utils;
 
 use solana_sdk_bpf_utils::entrypoint::*;

test/fixtures/noop-rust/build.sh

@@ -3,5 +3,5 @@ set -ex
 
 cd "$(dirname "$0")"
 
-../../../bpf-sdk/rust/build.sh ../../../examples/bpf-rust-noop
+../../../examples/bpf-rust-noop/do.sh build
 cp ../../../examples/bpf-rust-noop/target/bpfel-unknown-unknown/release/solana_bpf_rust_noop.so .