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#!/usr/bin/env bash
# Scenario 04: compare old vs new goctl output — transitive imports
# Usage: bash compare.sh
# Requires: go install github.com/zeromicro/go-zero/tools/goctl@latest (auto-installed)
set -e
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
GOCTL_ROOT="$(cd "$SCRIPT_DIR/../../../.." && pwd)"
NEW_GOCTL="$GOCTL_ROOT/bin/goctl"
OLD_GOCTL="$(go env GOPATH)/bin/goctl"
OUT_OLD="$SCRIPT_DIR/output_old"
OUT_NEW="$SCRIPT_DIR/output_new"
verify_build() {
local dir="$1" label="$2"
echo "Verifying $label ..."
cd "$dir"
go mod tidy
if go build ./...; then
echo "$label: build passed"
else
echo "$label: build failed"
exit 1
fi
cd "$SCRIPT_DIR"
}
# Install released goctl and build local goctl
echo ">>> Installing goctl@latest ..."
go install github.com/zeromicro/go-zero/tools/goctl@latest
echo ">>> Building local goctl ..."
go build -o "$NEW_GOCTL" "$GOCTL_ROOT"
# Generate with old goctl
echo ">>> Generating with old goctl ..."
rm -rf "$OUT_OLD" && mkdir -p "$OUT_OLD/pb"
(cd "$OUT_OLD" && go mod init example.com/demo/s04_transitive > /dev/null 2>&1)
cd "$SCRIPT_DIR"
"$OLD_GOCTL" rpc protoc main.proto \
--go_out="$OUT_OLD/pb" \
--go-grpc_out="$OUT_OLD/pb" \
--zrpc_out="$OUT_OLD/rpc" \
--go_opt=paths=source_relative \
--go-grpc_opt=paths=source_relative \
--proto_path=.
verify_build "$OUT_OLD" "old"
# Generate with new goctl
echo ">>> Generating with new goctl ..."
rm -rf "$OUT_NEW" && mkdir -p "$OUT_NEW/pb"
(cd "$OUT_NEW" && go mod init example.com/demo/s04_transitive > /dev/null 2>&1)
cd "$SCRIPT_DIR"
"$NEW_GOCTL" rpc protoc main.proto \
--go_out="$OUT_NEW/pb" \
--go-grpc_out="$OUT_NEW/pb" \
--zrpc_out="$OUT_NEW/rpc" \
--go_opt=paths=source_relative \
--go-grpc_opt=paths=source_relative \
--proto_path=.
verify_build "$OUT_NEW" "new"
# Diff old vs new (exclude go.mod / go.sum)
echo ""
echo ">>> Diff (old vs new):"
if diff -rq --exclude="go.mod" --exclude="go.sum" "$OUT_OLD" "$OUT_NEW" > /dev/null 2>&1; then
echo " [identical] no differences between old and new output"
else
diff -r --exclude="go.mod" --exclude="go.sum" "$OUT_OLD" "$OUT_NEW" || true
fi