language/go: Handle unix build tag.

Fixes bazel-contrib#1465
connyay · May 1, 2023 · f382236 · f382236
1 parent 07882db
commit f382236
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diff --git a/language/go/fileinfo.go b/language/go/fileinfo.go
@@ -525,6 +525,9 @@ func matchesOS(os, value string) bool {
 	if os == value {
 		return true
 	}
+	if value == "unix" {
+		return rule.UnixOS[os]
+	}
 	for _, alias := range rule.OSAliases[os] {
 		if alias == value {
 			return true

diff --git a/rule/platform.go b/rule/platform.go
@@ -102,6 +102,23 @@ var OSAliases = map[string][]string{
 	"ios":     {"darwin"},
 }
 
+// UnixOS is the set of GOOS values matched by the "unix" build tag.
+// This list is from go/src/cmd/dist/build.go.
+var UnixOS = map[string]bool{
+	"aix":       true,
+	"android":   true,
+	"darwin":    true,
+	"dragonfly": true,
+	"freebsd":   true,
+	"hurd":      true,
+	"illumos":   true,
+	"ios":       true,
+	"linux":     true,
+	"netbsd":    true,
+	"openbsd":   true,
+	"solaris":   true,
+}
+
 var (
 	// KnownOSs is the sorted list of operating systems that Go supports.
 	KnownOSs []string
@@ -133,6 +150,8 @@ func init() {
 		KnownOSArchs[p.OS] = append(KnownOSArchs[p.OS], p.Arch)
 		KnownArchOSs[p.Arch] = append(KnownArchOSs[p.Arch], p.OS)
 	}
+	// unix is a pseudo os
+	KnownOSSet["unix"] = true
 	KnownOSs = make([]string, 0, len(KnownOSSet))
 	KnownArchs = make([]string, 0, len(KnownArchSet))
 	for os := range KnownOSSet {