gop version

cmd/gop/main.go

@@ -33,6 +33,7 @@ import (
 	"github.com/goplus/gop/cmd/internal/install"
 	"github.com/goplus/gop/cmd/internal/run"
 	"github.com/goplus/gop/cmd/internal/test"
+	"github.com/goplus/gop/cmd/internal/version"
 )
 
 func mainUsage() {
@@ -50,6 +51,7 @@ func init() {
 		build.Cmd,
 		clean.Cmd,
 		test.Cmd,
+		version.Cmd,
 	}
 }
 

cmd/internal/version/ver.go

@@ -0,0 +1,48 @@
+/*
+ Copyright 2021 The GoPlus Authors (goplus.org)
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+package version
+
+import (
+	"fmt"
+	"runtime"
+
+	"github.com/goplus/gop"
+	"github.com/goplus/gop/cmd/internal/base"
+)
+
+// -----------------------------------------------------------------------------
+
+// Cmd - gop build
+var Cmd = &base.Command{
+	UsageLine: "gop version [-v]",
+	Short:     "Version prints the build information for Gop executables",
+}
+
+var (
+	flag = &Cmd.Flag
+	_    = flag.Bool("v", false, "print verbose information.")
+)
+
+func init() {
+	Cmd.Run = runCmd
+}
+
+func runCmd(cmd *base.Command, args []string) {
+	fmt.Println("gop", gop.Version(), runtime.GOOS+"/"+runtime.GOARCH)
+}
+
+// -----------------------------------------------------------------------------

version.go

@@ -0,0 +1,30 @@
+/*
+ Copyright 2021 The GoPlus Authors (goplus.org)
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+package gop
+
+// buildVersion is the GoPlus tree's version string at build time.
+// This is set by the linker.
+var (
+	buildVersion string = "v1.0.0-rc1"
+)
+
+// Version returns the GoPlus tree's version string.
+// It is either the commit hash and date at the time of the build or,
+// when possible, a release tag like "v1.0.0-rc1".
+func Version() string {
+	return buildVersion
+}