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Build Unity protos as a Bazel DLL (#7291)

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admin
2026-06-16 07:54:23 -07:00
committed by GitHub
parent b2f22bbeb1
commit 0f2cabd469
11 changed files with 73 additions and 53 deletions
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scripts/build_protos.sh
+15 -53
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@@ -1,68 +1,30 @@
#!/bin/bash
set -euxo pipefail
set -euo pipefail
REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
UNITY_ROOT="$REPO_ROOT/src/main/csharp/net/eagle0/clients/unity/eagle0"
OUTPUT_DIR="$UNITY_ROOT/Assets/GeneratedProtos"
PLUGIN_DIR="$UNITY_ROOT/Assets/Plugins/Eagle0Protos"
GENERATED_SOURCES_DIR="$UNITY_ROOT/Assets/GeneratedProtos"
PROTO_DLL_TARGET="//src/main/csharp/net/eagle0/clients/unity/eagle0:eagle0_protos"
PROTO_DLL_OUTPUT="$REPO_ROOT/bazel-bin/src/main/csharp/net/eagle0/clients/unity/eagle0/eagle0_protos/netstandard2.1"
# All C# protobuf generation targets
TARGETS=(
"//src/main/protobuf/net/eagle0/common:common_csharp_proto_srcs"
"//src/main/protobuf/net/eagle0/shardok/storage:storage_csharp_proto_srcs"
"//src/main/protobuf/net/eagle0/shardok/common:common_csharp_proto_srcs"
"//src/main/protobuf/net/eagle0/shardok/api:api_csharp_proto_srcs"
"//src/main/protobuf/net/eagle0/eagle/common:common_csharp_proto_srcs"
"//src/main/protobuf/net/eagle0/eagle/views:views_csharp_proto_srcs"
"//src/main/protobuf/net/eagle0/eagle/api:api_csharp_proto_srcs"
"//src/main/protobuf/net/eagle0/eagle/api:api_csharp_grpc_srcs"
"//src/main/protobuf/net/eagle0/eagle/api/command/util:util_csharp_proto_srcs"
)
/bin/echo "Building C# protobuf DLL..."
bazel build "$PROTO_DLL_TARGET"
# Subdirectory for each target (avoids filename collisions across packages)
SUBDIRS=(
"net/eagle0/common"
"net/eagle0/shardok/storage"
"net/eagle0/shardok/common"
"net/eagle0/shardok/api"
"net/eagle0/eagle/common"
"net/eagle0/eagle/views"
"net/eagle0/eagle/api"
"net/eagle0/eagle/api"
"net/eagle0/eagle/api/command/util"
)
/bin/echo "Syncing generated protobuf DLL to $PLUGIN_DIR..."
/bin/echo "Building C# protobuf sources..."
bazel build "${TARGETS[@]}"
/bin/echo "Syncing generated .cs files to $OUTPUT_DIR..."
# Stage new files in a temp directory, then rsync to preserve timestamps
# on unchanged files. This avoids triggering Unity reimport when protos
# haven't changed, saving ~7 minutes of script recompilation.
STAGING_DIR=$(mktemp -d)
trap "rm -rf '$STAGING_DIR'" EXIT
for i in "${!TARGETS[@]}"; do
target="${TARGETS[$i]}"
subdir="${SUBDIRS[$i]}"
# Convert target label to bazel-bin path
# //src/main/protobuf/net/eagle0/common:common_csharp_proto_srcs
# -> bazel-bin/src/main/protobuf/net/eagle0/common/common_csharp_proto_srcs
target_path="${target#//}"
pkg="${target_path%%:*}"
name="${target_path##*:}"
bin_dir="$REPO_ROOT/bazel-bin/$pkg/$name"
dest_dir="$STAGING_DIR/$subdir"
mkdir -p "$dest_dir"
find "$bin_dir" -name "*.cs" -exec cp {} "$dest_dir/" \;
done
cp "$PROTO_DLL_OUTPUT/Eagle0Protos.dll" "$STAGING_DIR/"
cp "$PROTO_DLL_OUTPUT/Eagle0Protos.xml" "$STAGING_DIR/"
# Sync only changed files and delete removed ones; --checksum compares
# content not timestamps so unchanged files keep their original mtime.
mkdir -p "$OUTPUT_DIR"
rsync -rc --delete "$STAGING_DIR/" "$OUTPUT_DIR/"
mkdir -p "$PLUGIN_DIR"
rsync -rc --delete --exclude "*.meta" "$STAGING_DIR/" "$PLUGIN_DIR/"
/bin/echo "Done. Generated C# proto sources in $OUTPUT_DIR"
rm -rf "$GENERATED_SOURCES_DIR"
/bin/echo "Done. Generated C# proto DLL in $PLUGIN_DIR"