commit 676d9d220a8a71f207701fc8568078028235aea6
Author: Jan Schär <jan@monogon.tech>
Date:   Wed Apr 30 09:30:04 2025 +0000

    Add stampsrcs attribute
    
    This change adds the stampsrcs attribute, which allows providing a list
    of files containing variable definitions, which are used in addition to
    the stable and volatile status files and have the same format.
    
    See https://github.com/bazel-contrib/rules_go/issues/3507

diff --git a/go/private/actions/archive.bzl b/go/private/actions/archive.bzl
index 06212139..e89cedd6 100644
--- a/go/private/actions/archive.bzl
+++ b/go/private/actions/archive.bzl
@@ -177,6 +177,7 @@ def emit_archive(go, source = None, _recompile_suffix = "", recompile_internal_d
         _cover = source.cover,
         _embedsrcs = tuple(source.embedsrcs),
         _x_defs = tuple(source.x_defs.items()),
+        _stampsrcs = tuple(source.stampsrcs),
         _gc_goopts = tuple(source.gc_goopts),
         _cgo = source.cgo,
         _cdeps = tuple(source.cdeps),
@@ -198,8 +199,10 @@ def emit_archive(go, source = None, _recompile_suffix = "", recompile_internal_d
         _cgo_deps = cgo_deps,
     )
     x_defs = dict(source.x_defs)
+    stampsrcs = source.stampsrcs
     for a in direct:
         x_defs.update(a.x_defs)
+        stampsrcs = stampsrcs + a.stampsrcs
 
     # Ensure that the _cgo_export.h of the current target comes first when cgo_exports is iterated
     # by prepending it and specifying the order explicitly. This is required as the CcInfo attached
@@ -213,6 +216,7 @@ def emit_archive(go, source = None, _recompile_suffix = "", recompile_internal_d
         libs = depset(direct = [out_lib], transitive = [a.libs for a in direct]),
         transitive = depset([data], transitive = [a.transitive for a in direct]),
         x_defs = x_defs,
+        stampsrcs = stampsrcs,
         cgo_deps = depset(transitive = [cgo_deps] + [a.cgo_deps for a in direct]),
         cgo_exports = cgo_exports,
         runfiles = runfiles,
diff --git a/go/private/actions/link.bzl b/go/private/actions/link.bzl
index 18dd1f94..3b236f06 100644
--- a/go/private/actions/link.bzl
+++ b/go/private/actions/link.bzl
@@ -161,6 +161,7 @@ def emit_link(
         stamp_inputs.append(info_file)
     if stamp_x_defs_volatile:
         stamp_inputs.append(version_file)
+    stamp_inputs = stamp_inputs + archive.stampsrcs
     if stamp_inputs:
         builder_args.add_all(stamp_inputs, before_each = "-stamp")
 
diff --git a/go/private/context.bzl b/go/private/context.bzl
index f5cd735d..42c5cf13 100644
--- a/go/private/context.bzl
+++ b/go/private/context.bzl
@@ -202,6 +202,7 @@ def _merge_embed(source, embed):
     source["cover"] = depset(transitive = [source["cover"], s.cover])
     source["deps"] = source["deps"] + s.deps
     source["x_defs"].update(s.x_defs)
+    source["stampsrcs"] = source["stampsrcs"] + s.stampsrcs
     source["gc_goopts"] = source["gc_goopts"] + s.gc_goopts
     source["runfiles"] = source["runfiles"].merge(s.runfiles)
 
@@ -319,6 +320,7 @@ def new_go_info(
         "embedsrcs": embedsrcs,
         "cover": depset(attr_srcs) if coverage_instrumented else depset(),
         "x_defs": {},
+        "stampsrcs": [],
         "deps": deps,
         "gc_goopts": _expand_opts(go, "gc_goopts", getattr(attr, "gc_goopts", [])),
         "runfiles": _collect_runfiles(go, getattr(attr, "data", []), deps),
@@ -344,6 +346,8 @@ def new_go_info(
             k = "{}.{}".format(importmap, k)
         x_defs[k] = v
     go_info["x_defs"] = x_defs
+    for t in getattr(attr, "stampsrcs", []):
+        go_info["stampsrcs"] = go_info["stampsrcs"] + t[DefaultInfo].files.to_list()
     if not go_info["cgo"]:
         for k in ("cdeps", "cppopts", "copts", "cxxopts", "clinkopts"):
             if getattr(attr, k, None):
diff --git a/go/private/rules/binary.bzl b/go/private/rules/binary.bzl
index f3f2f07c..eac3a978 100644
--- a/go/private/rules/binary.bzl
+++ b/go/private/rules/binary.bzl
@@ -302,6 +302,12 @@ def _go_binary_kwargs(go_cc_aspects = []):
                 See [Defines and stamping] for examples of how to use these.
                 """,
             ),
+            "stampsrcs": attr.label_list(
+                allow_files = True,
+                doc = """Additional files containing variables which can be referenced in `x_defs`.
+                The format of these files should be the same as the workspace status.
+                """,
+            ),
             "basename": attr.string(
                 doc = """The basename of this binary. The binary
                 basename may also be platform-dependent: on Windows, we add an .exe extension.
diff --git a/go/private/rules/library.bzl b/go/private/rules/library.bzl
index 8aa020d6..fe944d3a 100644
--- a/go/private/rules/library.bzl
+++ b/go/private/rules/library.bzl
@@ -147,6 +147,12 @@ go_library = rule(
             Map of defines to add to the go link command. See [Defines and stamping] for examples of how to use these.
             """,
         ),
+        "stampsrcs": attr.label_list(
+            allow_files = True,
+            doc = """Additional files containing variables which can be referenced in `x_defs`.
+            The format of these files should be the same as the workspace status.
+            """,
+        ),
         "cgo": attr.bool(
             doc = """
             If `True`, the package may contain [cgo] code, and `srcs` may contain C, C++, Objective-C, and Objective-C++ files
diff --git a/go/private/rules/test.bzl b/go/private/rules/test.bzl
index 4859c53e..da46ead9 100644
--- a/go/private/rules/test.bzl
+++ b/go/private/rules/test.bzl
@@ -93,6 +93,7 @@ def _go_test_impl(ctx):
             embedsrcs = [struct(files = internal_go_info.embedsrcs)],
             deps = internal_archive.direct + [internal_archive],
             x_defs = ctx.attr.x_defs,
+            stampsrcs = ctx.attr.stampsrcs,
         ),
         name = internal_go_info.name + "_test",
         importpath = internal_go_info.importpath + "_test",
@@ -326,6 +327,12 @@ _go_test_kwargs = {
             See [Defines and stamping] for examples of how to use these.
             """,
         ),
+        "stampsrcs": attr.label_list(
+            allow_files = True,
+            doc = """Additional files containing variables which can be referenced in `x_defs`.
+            The format of these files should be the same as the workspace status.
+            """,
+        ),
         "linkmode": attr.string(
             default = "auto",
             values = ["auto"] + LINKMODES,
@@ -661,6 +668,7 @@ def _recompile_external_deps(go, external_go_info, internal_archive, library_lab
     attrs = structs.to_dict(internal_go_info)
     attrs["deps"] = internal_deps
     attrs["x_defs"] = x_defs
+    attrs["stampsrcs"] = internal_go_info.stampsrcs + internal_archive.stampsrcs
     internal_go_info = GoInfo(**attrs)
     internal_archive = go.archive(go, internal_go_info, _recompile_suffix = ".recompileinternal", recompile_internal_deps = need_recompile_deps)
 
@@ -698,6 +706,7 @@ def _recompile_external_deps(go, external_go_info, internal_archive, library_lab
             cover = arc_data._cover,
             embedsrcs = as_list(arc_data._embedsrcs),
             x_defs = dict(arc_data._x_defs),
+            stampsrcs = as_list(arc_data._stampsrcs),
             deps = deps,
             gc_goopts = as_list(arc_data._gc_goopts),
             runfiles = arc_data.runfiles,
@@ -722,6 +731,7 @@ def _recompile_external_deps(go, external_go_info, internal_archive, library_lab
                 libs = depset(direct = [arc_data.file], transitive = [a.libs for a in deps]),
                 transitive = depset(direct = [arc_data], transitive = [a.transitive for a in deps]),
                 x_defs = go_info.x_defs,
+                stampsrcs = go_info.stampsrcs,
                 cgo_deps = depset(transitive = [arc_data._cgo_deps] + [a.cgo_deps for a in deps]),
                 cgo_exports = depset(transitive = [a.cgo_exports for a in deps]),
                 runfiles = go_info.runfiles,