make asan library path dynamic

Author: arik-so

.github/workflows/swift.yml

@@ -56,8 +56,11 @@ jobs:
                     python ci/fix_header_includes.py
             -   name: Generate Swift bindings and copy batteries
                 run: |
-                    LDK_SWIFT_GENERATOR_INPUT_HEADER_PATH="ldk-c-bindings/lightning-c-bindings/include/lightning.h" LDK_SWIFT_GENERATOR_OUTPUT_DIRECTORY_PATH="ci/LDKSwift/Sources/LDKSwift" python ./
+                    python ./
                     cp -R bindings/batteries ci/LDKSwift/Sources/LDKSwift
+                env:
+                    LDK_SWIFT_GENERATOR_INPUT_HEADER_PATH: ldk-c-bindings/lightning-c-bindings/include/lightning.h
+                    LDK_SWIFT_GENERATOR_OUTPUT_DIRECTORY_PATH: ci/LDKSwift/Sources/LDKSwift
             -   name: Fix Swift files
                 run: |
                     python ci/fix_swift_imports.py
@@ -67,12 +70,20 @@ jobs:
             -   name: Build Swift bindings package
                 run: |
                     cd ci/LDKSwift
-                    LDK_C_BINDINGS_BASE="../../ldk-c-bindings" RUST_BACKTRACE=1 ../../swift-5.4.2-RELEASE-ubuntu20.04/usr/bin/swift build
+                    ../../swift-5.4.2-RELEASE-ubuntu20.04/usr/bin/swift build
                     cd ../../
+                env:
+                    LDK_C_BINDINGS_BASE: /home/runner/work/ldk-swift/ldk-swift/ldk-c-bindings
+                    LLVM_CLANG_ASAN_PATH: /usr/lib/llvm-11/lib/clang/11.0.0/lib/linux/libclang_rt.asan-x86_64.a
+                    RUST_BACKTRACE: 1
             -   name: Test Swift bindings package
                 run: |
                     cd ci/LDKSwift
-                    LDK_C_BINDINGS_BASE="/home/runner/work/ldk-swift/ldk-swift/ldk-c-bindings" RUST_BACKTRACE=1 ../../swift-5.4.2-RELEASE-ubuntu20.04/usr/bin/swift test -v
+                    ../../swift-5.4.2-RELEASE-ubuntu20.04/usr/bin/swift test -v
+                env:
+                    LDK_C_BINDINGS_BASE: /home/runner/work/ldk-swift/ldk-swift/ldk-c-bindings
+                    LLVM_CLANG_ASAN_PATH: /usr/lib/llvm-11/lib/clang/11.0.0/lib/linux/libclang_rt.asan-x86_64.a
+                    RUST_BACKTRACE: 1
             -   name: Check that the latest headers are in the swift repo
                 run: |
                     git diff --exit-code

ci/Dockerfile

@@ -3,7 +3,7 @@ FROM swift:bionic
 
 RUN apt-get -y update
 RUN apt-get -y dist-upgrade
-RUN apt-get install -y bash curl git make unzip build-essential python3
+RUN apt-get install -y bash curl git make unzip build-essential python3 clang
 # RUN apt-get install -y cargo
 
 # install RUST
@@ -35,5 +35,6 @@ COPY bindings/batteries ci/LDKSwift/Sources/LDKSwift/batteries
 ENV LDK_C_BINDINGS_BASE="/ldk-c-bindings"
 ENV LDK_SWIFT_GENERATOR_INPUT_HEADER_PATH="/ldk-c-bindings/lightning-c-bindings/include/lightning.h"
 ENV LDK_SWIFT_GENERATOR_OUTPUT_DIRECTORY_PATH="/ci/LDKSwift/Sources/LDKSwift"
+ENV LLVM_CLANG_ASAN_PATH="/usr/lib/llvm-6.0/lib/clang/6.0.0/lib/linux/libclang_rt.asan-x86_64.a"
 ENV RUST_BACKTRACE=1
 ENV SHELL=/bin/bash

ci/LDKSwift/Package.swift

@@ -44,7 +44,8 @@ let package = Package(
                     swiftSettings: nil,
                     linkerSettings: [
                         .linkedLibrary(String(utf8String: getenv("LDK_C_BINDINGS_BASE")!)! + "/lightning-c-bindings/target/debug/libldk.a"),
-                        .linkedLibrary("/usr/lib/llvm-11/lib/clang/11.0.0/lib/linux/libclang_rt.asan-x86_64.a")
+                        // .linkedLibrary("/usr/lib/llvm-11/lib/clang/11.0.0/lib/linux/libclang_rt.asan-x86_64.a")
+                        .linkedLibrary(String(utf8String: getenv("LLVM_CLANG_ASAN_PATH")!)!)
                     ]),
             .testTarget(
                     name: "LDKSwiftTests",