fix: Regenerate flatbuffers in a Docker container by default

.circleci/config.yml

@@ -168,7 +168,7 @@ jobs:
       - rust_components # Regenerating flatbuffers uses rustfmt
       - run:
           name: Check Flatbuffers
-          command: ./generated_types/check-flatbuffers.sh
+          command: LOCAL=1 ./generated_types/check-flatbuffers.sh
 
   # Compile a cargo "release" profile binary for branches that end in `/perf`
   #

generated_types/regenerate-flatbuffers.sh

@@ -24,45 +24,78 @@ FB_COMMIT="86401e078d0746d2381735415f8c2dfe849f3f52"
 # - Check in the changes to the generated code along with your changes to the `Cargo.lock` file and
 #   this script.
 
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-pushd $DIR
+# By default, this script will run a Docker container that uses the same image we use in CI that
+# will have all the necessary dependencies. If you don't want to run Docker, run this script with
+# LOCAL=1.
+if [ -z ${LOCAL} ]; then
+  echo "Running in Docker..."
 
-echo "Building flatc from source ..."
+  CI_IMAGE=quay.io/influxdb/rust:ci
 
-FB_URL="https://github.com/google/flatbuffers"
-FB_DIR=".flatbuffers"
-FLATC="$FB_DIR/bazel-bin/flatc"
+  DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+  pushd $DIR
 
-if [ -z $(which bazel) ]; then
-    echo "bazel is required to build flatc"
-    exit 1
-fi
+  DOCKER_IOX_DIR=/home/rust/influxdb_iox
 
-echo "Bazel version: $(bazel version | head -1 | awk -F':' '{print $2}')"
+  docker kill flatc || true
+  docker rm flatc || true
 
-if [ ! -e $FB_DIR ]; then
-    echo "git clone $FB_URL ..."
-    git clone -b master --no-tag $FB_URL $FB_DIR
+  docker pull ${CI_IMAGE} || true
+
+  docker run \
+    -it \
+    --detach \
+    --name=flatc \
+    --volume ${DIR}/..:${DOCKER_IOX_DIR} \
+    ${CI_IMAGE}
+
+  docker exec -e LOCAL=1 flatc .${DOCKER_IOX_DIR}/generated_types/regenerate-flatbuffers.sh
+
+  docker kill flatc || true
+  docker rm flatc || true
 else
-    echo "git pull $FB_URL ..."
-    git -C $FB_DIR pull --ff-only
+  echo "Running locally..."
+
+  DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+  pushd $DIR
+
+  echo "Building flatc from source ..."
+
+  FB_URL="https://github.com/google/flatbuffers"
+  FB_DIR=".flatbuffers"
+  FLATC="$FB_DIR/bazel-bin/flatc"
+
+  if [ -z $(which bazel) ]; then
+      echo "bazel is required to build flatc"
+      exit 1
+  fi
+
+  echo "Bazel version: $(bazel version | head -1 | awk -F':' '{print $2}')"
+
+  if [ ! -e $FB_DIR ]; then
+      echo "git clone $FB_URL ..."
+      git clone -b master --no-tag $FB_URL $FB_DIR
+  else
+      echo "git pull $FB_URL ..."
+      git -C $FB_DIR pull --ff-only
+  fi
+
+  echo "hard reset to $FB_COMMIT"
+  git -C $FB_DIR reset --hard $FB_COMMIT
+
+  pushd $FB_DIR
+  echo "run: bazel build :flatc ..."
+  bazel build :flatc
+  popd
+
+  RUST_DIR="$DIR/src"
+  while read -r FBS_FILE; do
+      echo "Compiling ${FBS_FILE}"
+      $FLATC --rust -o $RUST_DIR $FBS_FILE
+  done < <(git ls-files $DIR/*.fbs)
+
+  cargo fmt
+  popd
+
+  echo "DONE! Please run 'cargo test' and check in any changes."
 fi
-
-echo "hard reset to $FB_COMMIT"
-git -C $FB_DIR reset --hard $FB_COMMIT
-
-pushd $FB_DIR
-echo "run: bazel build :flatc ..."
-bazel build :flatc
-popd
-
-RUST_DIR="$DIR/src"
-while read -r FBS_FILE; do
-    echo "Compiling ${FBS_FILE}"
-    $FLATC --rust -o $RUST_DIR $FBS_FILE
-done < <(git ls-files $DIR/*.fbs)
-
-cargo fmt
-popd
-
-echo "DONE! Please run 'cargo test' and check in any changes."