错误:后处理失败: 820:39:缺少“，”在参数列表中

Question

protoc-gen-validate是一个原型插件，用于生成polyglot消息验证器。

该项目使用Bazel进行构建，并有一个开拉请求来添加对验证错误消息的自定义支持。

最初的代码是在2020年制定的。最近，它用最新的代码进行了更新，在修复了所有合并冲突之后，现在它无法构建，但是我找不到问题：

~/GitHub/protoc-gen-validate (i18n) $ make bazel-tests
bazel test //tests/... --test_output=errors
INFO: Analyzed 68 targets (0 packages loaded, 0 targets configured).
INFO: Found 62 targets and 6 test targets...
ERROR: /Users/mparnisari/GitHub/protoc-gen-validate/tests/harness/cases/BUILD:46:21: Generating into bazel-out/darwin-fastbuild/bin/tests/harness/cases/go_/github.com/envoyproxy/protoc-gen-validate/tests/harness/cases/go failed: (Exit 1): go-protoc-bin failed: error executing command bazel-out/darwin-opt-exec-2B5CBBC6/bin/external/io_bazel_rules_go/go/tools/builders/go-protoc-bin_/go-protoc-bin -protoc bazel-out/darwin-opt-exec-2B5CBBC6/bin/external/com_google_protobuf/protoc ... (remaining 117 argument(s) skipped)

Use --sandbox_debug to see verbose messages from the sandbox
[error] failed post-processing: 820:39: missing ',' in argument list (and 10 more errors)
--validate_out: protoc-gen-validate: Plugin failed with status code 1.
2021/12/14 23:46:43 error running protoc: exit status 1
ERROR: /Users/mparnisari/GitHub/protoc-gen-validate/tests/harness/cases/BUILD:46:21 GoCompilePkg tests/harness/cases/go.a failed: (Exit 1): go-protoc-bin failed: error executing command bazel-out/darwin-opt-exec-2B5CBBC6/bin/external/io_bazel_rules_go/go/tools/builders/go-protoc-bin_/go-protoc-bin -protoc bazel-out/darwin-opt-exec-2B5CBBC6/bin/external/com_google_protobuf/protoc ... (remaining 117 argument(s) skipped)

Use --sandbox_debug to see verbose messages from the sandbox
INFO: Elapsed time: 0.962s, Critical Path: 0.48s
INFO: 8 processes: 8 internal.
FAILED: Build did NOT complete successfully

从启动test命令后立即出现错误([error] failed post-processing: 820:39: missing ',' in argument list (and 10 more errors))这一事实判断，我认为这是Bazel的一个问题，但我不确定。

更新1:我把范围缩小到以下几个方面：

~/GitHub/fork/protoc-gen-validate (i18n) $ make testcases
cd tests/harness/cases && \
        protoc \
                -I . \
                -I ../../.. \
                --go_out="module=github.com/envoyproxy/protoc-gen-validate/tests/harness/cases/go,Mtests/harness/cases/other_package/embed.proto=github.com/envoyproxy/protoc-gen-validate/tests/harness/cases/other_package/go;other_package,Mtests/harness/cases/yet_another_package/embed.proto=github.com/envoyproxy/protoc-gen-validate/tests/harness/cases/yet_another_package/go,Mvalidate/validate.proto=github.com/envoyproxy/protoc-gen-validate/validate,Mgoogle/protobuf/any.proto=google.golang.org/protobuf/types/known/anypb,Mgoogle/protobuf/duration.proto=google.golang.org/protobuf/types/known/durationpb,Mgoogle/protobuf/struct.proto=google.golang.org/protobuf/types/known/structpb,Mgoogle/protobuf/timestamp.proto=google.golang.org/protobuf/types/known/timestamppb,Mgoogle/protobuf/wrappers.proto=google.golang.org/protobuf/types/known/wrapperspb,Mgoogle/protobuf/descriptor.proto=google.golang.org/protobuf/types/descriptorpb:./go" \
                --plugin=protoc-gen-go=/Users/mparnisari/go/bin/protoc-gen-go \
                --validate_out="module=github.com/envoyproxy/protoc-gen-validate/tests/harness/cases/go,lang=go,Mtests/harness/cases/other_package/embed.proto=github.com/envoyproxy/protoc-gen-validate/tests/harness/cases/other_package/go,Mtests/harness/cases/yet_another_package/embed.proto=github.com/envoyproxy/protoc-gen-validate/tests/harness/cases/yet_another_package/go:./go" \
                ./*.proto
filename-with-dash.proto:5:1: warning: Import validate/validate.proto is unused.
[error] failed post-processing: 820:39: missing ',' in argument list (and 10 more errors)
--validate_out: protoc-gen-validate: Plugin failed with status code 1.
make: 
*** [testcases] Error 1

更新2:缩小范围。如果我删除这个文件：tests/harness/cases/maps.proto

make testcases工程

更新3:缩小范围。如果我删除这些行：https://github.com/envoyproxy/protoc-gen-validate/blob/main/tests/harness/cases/maps.proto#L14-L17

make testcase工程

Answer 1

使用开关--sandbox_debug构建将提供一个未截断的堆栈跟踪。

这都是关于缺少一个逗号的...the，唯一的问题是在哪个文件和行中。

它抱怨harness_py_proto test@ 46:21。tests/harness/executor/cases.go建议对文件执行语法检查，因为如果820:39不在某个生成的文件中，这可能是最适合的文件(按行号和错误消息)。我的Go语法并不那么流利，这就是为什么我看不见它的原因--但是语法检查器或linter可以：

lint bazel testcases bazel-tests

此外，Makefile可能是一个可能的候选人，但并没有发生什么事情：

.PHONY: harness
harness: testcases tests/harness/go/harness.pb.go tests/harness/go/main/go-harness tests/harness/cc/cc-harness bin/harness ## runs the test harness, validating a series of test cases in all supported languages
    ./bin/harness -go -cc

.PHONY: bazel-tests
bazel-tests: ## runs all tests with Bazel
    bazel test //tests/... --test_output=errors

以前试过运行make harness吗？当它照评论说的做的时候..。

## runs the test harness, validating a series of test cases in all supported languages