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Writing resolved Go modules as K:V JSON for external bookkeeping #1906

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11 changes: 10 additions & 1 deletion internal/bzlmod/go_deps.bzl
Original file line number Diff line number Diff line change
Expand Up @@ -259,7 +259,7 @@ def _go_repository_config_impl(ctx):
))

ctx.file("WORKSPACE", "\n".join(repos))
ctx.file("BUILD.bazel", "exports_files(['WORKSPACE', 'config.json'])")
ctx.file("BUILD.bazel", "exports_files(['WORKSPACE', 'config.json', 'resolved_deps.json'])")
ctx.file("go_env.bzl", content = "GO_ENV = " + repr(ctx.attr.go_env))

# For use by @rules_go//go.
Expand All @@ -268,13 +268,17 @@ def _go_repository_config_impl(ctx):
"dep_files": ctx.attr.dep_files,
}))

# For bookkeeping by upstream systems that may want this info
ctx.file("resolved_deps.json", content = json.encode_indent(ctx.attr.resolved_deps))

_go_repository_config = repository_rule(
implementation = _go_repository_config_impl,
attrs = {
"importpaths": attr.string_dict(mandatory = True),
"module_names": attr.string_dict(mandatory = True),
"build_naming_conventions": attr.string_dict(mandatory = True),
"go_env": attr.string_dict(mandatory = True),
"resolved_deps": attr.string_dict(mandatory = True),
"dep_files": attr.string_list(),
},
)
Expand Down Expand Up @@ -589,6 +593,7 @@ def _go_deps_impl(module_ctx):
),
)

resolved_go_modules = {}
repos_processed = {}
for path, module in module_resolutions.items():
if hasattr(module, "module_name"):
Expand Down Expand Up @@ -649,6 +654,9 @@ def _go_deps_impl(module_ctx):

go_repository_args.update(repo_args)

if "version" in go_repository_args and go_repository_args["version"]:
resolved_go_modules[go_repository_args["importpath"]] = go_repository_args["version"]

go_repository(**go_repository_args)

# Create a synthetic WORKSPACE file that lists all Go repositories created
Expand All @@ -675,6 +683,7 @@ def _go_deps_impl(module_ctx):
}),
go_env = go_env,
dep_files = dep_files,
resolved_deps = resolved_go_modules,
)

return extension_metadata(
Expand Down