Files
revel-cmd/revel/version.go
NotZippy 7a4e741d1c Added a version file to revel/cmd
Updated import path detection to make it smarter. You can now use absolute paths etc..
2018-09-22 13:37:27 -07:00

101 lines
2.7 KiB
Go

// Copyright (c) 2012-2016 The Revel Framework Authors, All rights reserved.
// Revel Framework source code and usage is governed by a MIT style
// license that can be found in the LICENSE file.
// Copyright (c) 2012-2016 The Revel Framework Authors, All rights reserved.
// Revel Framework source code and usage is governed by a MIT style
// license that can be found in the LICENSE file.
package main
import (
"fmt"
"runtime"
"github.com/revel/cmd/model"
"go/build"
"go/token"
"go/parser"
"go/ast"
"io/ioutil"
"path/filepath"
"github.com/revel/cmd/utils"
"github.com/revel/cmd"
)
var cmdVersion = &Command{
UsageLine: "version",
Short: "displays the Revel Framework and Go version",
Long: `
Displays the Revel Framework and Go version.
For example:
revel version
`,
}
func init() {
cmdVersion.RunWith = versionApp
}
// Displays the version of go and Revel
func versionApp(c *model.CommandConfig) {
var (
revelPkg *build.Package
err error
)
if len(c.ImportPath)>0 {
appPkg, err := build.Import(c.ImportPath, "", build.FindOnly)
if err != nil {
utils.Logger.Fatal("Failed to import " + c.ImportPath + " with error:", "error", err)
}
revelPkg, err = build.Import(model.RevelImportPath, appPkg.Dir, build.FindOnly)
} else {
revelPkg, err = build.Import(model.RevelImportPath, "" , build.FindOnly)
}
fmt.Println("\nRevel Framework")
if err != nil {
utils.Logger.Info("Failed to find Revel in GOPATH with error:", "error", err, "gopath", build.Default.GOPATH)
fmt.Println("Information not available (not on GOPATH)")
} else {
utils.Logger.Info("Fullpath to revel", revelPkg.Dir)
fset := token.NewFileSet() // positions are relative to fset
version, err := ioutil.ReadFile(filepath.Join(revelPkg.Dir, "version.go"))
if err != nil {
utils.Logger.Errorf("Failed to find Revel version:", "error", err)
}
// Parse src but stop after processing the imports.
f, err := parser.ParseFile(fset, "", version, parser.ParseComments)
if err != nil {
utils.Logger.Errorf("Failed to parse Revel version error:", "error", err)
}
// Print the imports from the file's AST.
for _, s := range f.Decls {
genDecl, ok := s.(*ast.GenDecl)
if !ok {
continue
}
if genDecl.Tok != token.CONST {
continue
}
for _, a := range genDecl.Specs {
spec := a.(*ast.ValueSpec)
r := spec.Values[0].(*ast.BasicLit)
fmt.Printf("Revel %s = %s\n", spec.Names[0].Name, r.Value)
}
}
}
fmt.Println("\nRevel Command Utility Tool")
fmt.Println("Version", cmd.Version)
fmt.Println("Build Date", cmd.BuildDate)
fmt.Println("Minimum Go Version", cmd.MinimumGoVersion)
fmt.Printf("\n %s %s/%s\n\n", runtime.Version(), runtime.GOOS, runtime.GOARCH)
}