cobra classfile: initial version

Author: xushiwei

.gitignore

@@ -8,6 +8,8 @@
 *.so
 *.dylib
 
+.DS_Store
+
 # Test binary, built with `go test -c`
 *.test
 

classfile.go

@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2025 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * 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 cobra
+
+import (
+	"reflect"
+
+	"github.com/spf13/cobra"
+)
+
+const (
+	GopPackage = true
+)
+
+// -----------------------------------------------------------------------------
+
+// Command is the worker class of Cobra classfile.
+type Command struct {
+	cobra.Command
+}
+
+func (p *Command) cobraCmd() *cobra.Command {
+	return &p.Command
+}
+
+// Main is required by Go+ compiler as the entry of a Cobra command.
+func (p *Command) Main(fname string) {
+	p.Command.Use = fname
+}
+
+// Use sets the one-line usage message.
+func (p *Command) Use(use string) {
+	p.Command.Use = use
+}
+
+// Short sets the short description shown in the 'help' output.
+func (p *Command) Short(s string) {
+	p.Command.Short = s
+}
+
+// Long sets the long message shown in the 'help <this-command>' output.
+func (p *Command) Long(l string) {
+	p.Command.Long = l
+}
+
+// Run sets the actual work function. Most commands will only implement this.
+func (p *Command) Run(fn func()) {
+	p.Command.Run = func(cmd *cobra.Command, args []string) {
+		fn()
+	}
+}
+
+// -----------------------------------------------------------------------------
+
+// App is the project class of Cobra classfile.
+type App struct {
+	Command
+}
+
+func (p *App) initApp(projname string) *Command {
+	p.Use(projname)
+	return &p.Command
+}
+
+type iAppProto interface {
+	initApp(projname string) *Command
+	Classprojname() string
+}
+
+type iCommandProto interface {
+	cobraCmd() *cobra.Command
+	Main(fname string)
+	Classfname() string
+}
+
+// Gopt_App_Main is required by Go+ compiler as the entry of a Cobra project.
+func Gopt_App_Main(app iAppProto, cmds ...iCommandProto) {
+	root := app.initApp(app.Classprojname())
+	for _, cmd := range cmds {
+		reflect.ValueOf(cmd).Elem().Field(1).Set(reflect.ValueOf(app)) // (*command).App = app
+		cmd.Main(cmd.Classfname())
+		root.AddCommand(cmd.cobraCmd())
+	}
+	root.Execute()
+}
+
+// -----------------------------------------------------------------------------

demo/godemo/gop_autogen.go

@@ -0,0 +1,25 @@
+short "print Go version"
+
+long `Version prints the build information for Go binary files.
+
+Go version reports the Go version used to build each of the named files.
+
+If no files are named on the command line, go version prints its own
+version information.
+
+If a directory is named, go version walks that directory, recursively,
+looking for recognized Go binaries and reporting their versions.
+By default, go version does not report unrecognized files found
+during a directory scan. The -v flag causes it to report unrecognized files.
+
+The -m flag causes go version to print each file's embedded
+module version information, when available. In the output, the module
+information consists of multiple lines following the version line, each
+indented by a leading tab character.
+
+See also: go doc runtime/debug.BuildInfo.
+`
+
+run => {
+    echo "go1.0"
+}

demo/godemo/main_cmd.gox

@@ -0,0 +1,10 @@
+module github.com/goplus/cobra
+
+go 1.19
+
+require github.com/spf13/cobra v1.9.1
+
+require (
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.6 // indirect
+)

demo/godemo/version_cmd.gox

@@ -0,0 +1,10 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=
+github.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=
+github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
+github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

go.mod

@@ -0,0 +1,5 @@
+gop 1.2
+
+project _cmd.gox App github.com/goplus/cobra
+
+class _cmd.gox Command