Preparing v0.32.0 release

[linzhp]

This release brings many exciting changes

New features

• gomock rule is officially supported in rules_go (doc), replacing the original jmhodges/bazel_gomock repository. Thanks to @jmhodges for the original implementation.
• rules_go now generates coverage reports in LCOV format by default (Generate coverage reports in LCOV format #3117), to be compatible with Bazel's --combined_report=lcov. To generate reports in the old go tool cover format, please use --//go/config:cover_format=go_cover. Thanks to @fmeum
• supporting windows/arm64 (enable windows/arm64 go build with bazel #3072). Thanks to @nsait-linaro
• nogo config can now takes analyzer_flags (Resolves #3081: add analyzer_flags to nogo config #3082), thanks to @navneethjayendran

Bug fixes

• Consider volatile and stable status files separately (Consider volatile and stable status files separately #3079) Thanks to @siddharthab
• Reducing duplicate information passed by go_pkg_info_aspect (Reducing duplicate information passed by go_pkg_info_aspect #3111)
• Fix include paths for CGo deps in external repositories (Fix include paths for CGo deps in external repositories #3115) thanks to @fmeum
• Revert change to use resolved shared lib links (Revert change to use resolved shared lib links #2907), thanks to @glukasiknuro
• Fix lost x_defs on test execution (Fix lost x_defs on test execution #3135), thanks to @bozaro
• Let go_binary's executable bit depend on linkmode (Let go_binary's executable bit depend on linkmode #3143) thanks to @fmeum

Deprecations

go_embed_data and bindata will be deprecated in rules_go 0.35.0. Users are encourage to migrate to go:embed and embedsrcs.

Other changes

• Use output dir for empty packages to be hermetic (Use output dir for empty packages to be hermetic #3098), thanks to @joeljeske
• Prevent downgrading platforms (Prevent downgrading platforms (#3071) #3076), thanks to @cpsauer
• Doc improvements (doc: improve core rules introduction #3100), thanks to @sluongng
• Remove legacy proto code for Bazel < 0.21 (Remove legacy proto code for Bazel < 0.21 #3099), thanks to @cpsauer
• Remove unused coverage code (Remove unused coverage code #3118), thanks to @fmeum
• Moving tests for go_embed_data and gomock to tests/extras (Moving tests for go_embed_data and gomock to tests/extras #3122)
• Add command line copts/cxxopts to Cgo compile flags (Add command line copts/cxxopts to Cgo compile flags #3126), thanks to @dchen496
• Reset Go settings for protoc dependencies (Reset Go settings for protoc dependencies #3005), thanks to @fmeum
• Trim transitioned Go settings on non-Go dependencies (Trim transitioned Go settings on non-Go dependencies #3108), thanks to @fmeum

Updated dependencies

As always, you can use higher versions of rules_go's dependencies by declaring
them in WORKSPACE before calling go_rules_dependencies. Lower versions may
work but are not supported.

• org_golang_google_protobuf updated to v1.28.0
• org_golang_x_sys, org_golang_x_xerrors, org_golang_google_genproto and go_googleapis updated to master, as of 2022-05-09

[robfig]

Nice work! Looks like a big release.

[linzhp]

Many tests in Uber's Go monorepo failed due to #3117. I will hold this release.

[fmeum]

Many tests in Uber's Go monorepo failed due to #3117. I will hold this release.

@linzhp Can you share details about the failure? If I remember correctly, the tests passed on the branch, which is weird.

[linzhp]

Many tests in Uber use this pattern to mock a subprocess call from a Go program. #3117 made test panic when there is os.Exit() call in a test function:

panic: unexpected call to os.Exit(0) during test [recovered]
	panic: unexpected call to os.Exit(0) during test

[fmeum]

A hack defeats a hack, I guess. :-)
I think we could override the SetPanicOnExit function to not actually enable the feature, but still get the callback to be called. But then the feature is also quite useful, if it weren't for this trick.

[fmeum]

We should be able to disable the "panic on os.Exit(0)" feature, but still keep the hook, by removing this line:

rules_go/go/tools/bzltestutil/lcov.go

Line 174 in fee2095

ltd.TestDeps.SetPanicOnExit0(panicOnExit)

@linzhp How would you feel about defaulting the feature to "on", as it is with the non-Bazel Go toolchain, and offering a knob to disable it, either globally via a config setting or an attribute on go_test?

[linzhp]

I am preparing a PR to restore panic on exit0 after we call lcovAtExitHook()

[ok32]

What about go1.18 support for editor?

[linzhp]

Our team at Uber is planning to work on that this incoming sprint, but it won't make it to this release, which is already packed with features and fixes