Update to clang 15 and add CI

.github/workflows/ci.yml

@@ -0,0 +1,65 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - cheri-tests
+
+# cancel in-progress job when a new push is performed
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        version: [4.14.1]
+
+
+    runs-on: ubuntu-22.04
+
+    steps:
+    - uses: actions/checkout@v3
+
+    # clang-15 seems to be required for ClangConfig.cmake
+    # libclang-14-dev and libclang-cpp14-dev seem to be for the opam conf-libclang package
+    # llvm-15-dev seems to be for the LLVM cmake files/package
+    - name: System dependencies (ubuntu)
+      run: |
+        sudo apt-get install clang-15 cmake libclang-14-dev libclang-15-dev libclang-cpp14-dev llvm-15-dev opam python3
+
+    - name: Restore cached opam
+      id: cache-opam-restore
+      uses: actions/cache/restore@v4
+      with:
+        path: ~/.opam
+        key: ${{ matrix.version }}
+
+    - name: Setup opam
+      if: steps.cache-opam-restore.outputs.cache-hit != 'true'
+      run: |
+        opam init --yes --no-setup --shell=sh --compiler=${{ matrix.version }}
+        opam install --with-test --deps-only --yes .
+
+    - name: Save cached opam
+      if: steps.cache-opam-restore.outputs.cache-hit != 'true'
+      id: cache-opam-save
+      uses: actions/cache/save@v4
+      with:
+        path: ~/.opam
+        key: ${{ steps.cache-opam-restore.outputs.cache-primary-key }}
+
+    - name: Install c-tree-carver
+      run: |
+        opam switch ${{ matrix.version }}
+        eval $(opam env --switch=${{ matrix.version }})
+        opam install --with-test --yes .
+
+    - name: Run CI tests
+      run: |
+        opam switch ${{ matrix.version }}
+        eval $(opam env --switch=${{ matrix.version }})
+        dune runtest && cd cpp && python3 ./test/run_test.py make && python3 ./test/run_test.py for --carver clang-tree-carve.exe 

c-tree-carver.opam

@@ -7,14 +7,15 @@ authors: ["Dhruv Makwana <[email protected]"]
 license: ["MIT" "BSD-2-Clause"]
 tags: ["topics" "c" "clang" "tool" "tree-carving"]
 homepage: "https://github.com/rems-project/c-tree-carver"
+doc: "https://github.com/rems-project/c-tree-carver"
 bug-reports: "https://github.com/rems-project/c-tree-carver/issues"
 depends: [
   "dune" {>= "3.7"}
-  "ocaml" {>= "4.12.0"}
+  "ocaml" {>= "4.14.1"}
   "conf-c++"
   "conf-cmake" {dev}
-  "conf-llvm" {= "12.0.1"}
-  "conf-python3" {with-test}
+  "conf-libclang" {= "15"}
+  "conf-python-3" {with-test}
   "fileutils" {>= "0.6.4"}
   "shexp" {>= "v0.15.0"}
   "ocamlformat" {>= "0.25.1" & dev}

cpp/src/CMakeLists.txt

@@ -42,7 +42,16 @@
 cmake_minimum_required(VERSION 3.16.3)
 project(clang-tree-carver)
 
-find_package(LLVM "12.0.0" REQUIRED CONFIG)
+find_package(LLVM "15.0.7" REQUIRED CONFIG)
+# Not sure what the correct/idiomatic CMake is for a situation where packages
+# aren't version but CMake defaults to a wrong but earlier one instead of a
+# correct later one.
+#   /usr/lib/cmake/clang-12/ClangConfig.cmake, version: unknown
+#   /usr/lib/cmake/clang-15/ClangConfig.cmake, version: unknown
+#   /lib/cmake/clang-12/ClangConfig.cmake, version: unknown
+#   /lib/cmake/clang-15/ClangConfig.cmake, version: unknown
+# So I'm hard-coding it.
+set(Clang_DIR "/usr/lib/cmake/clang-15")
 find_package(Clang REQUIRED CONFIG)
 
 set(CLANG_LIBS

dune-project

@@ -13,18 +13,18 @@
 
 (license MIT BSD-2-Clause)
 
-; (documentation https://url/to/documentation)
+(documentation https://github.com/rems-project/c-tree-carver)
 
 (package
  (name c-tree-carver)
  (synopsis "Clang-based tool for tree-carving C source trees")
  (description "")
  (depends
-     (ocaml (>= 4.12.0))
+     (ocaml (>= 4.14.1))
      conf-c++
      (conf-cmake :dev)
-     (conf-llvm (= 12.0.1))
-     (conf-python3 :with-test)
+     (conf-libclang (= 15))
+     (conf-python-3 :with-test)
      (fileutils (>= 0.6.4))
      (shexp (>= v0.15.0))
      (ocamlformat (and (>= 0.25.1) :dev))
@@ -34,11 +34,6 @@
  (tags
   (topics c clang tool tree-carving)))
 
-(package
- (name conf-libclang-12-dev)
- (allow_empty))
-
-
 (formatting)
 
 ; See the complete stanza docs at https://dune.readthedocs.io/en/stable/dune-files.html#dune-project