Files
releases/cmd/version.go
T
Stephan Renatus 3486b52038 version: fix build flag used to determine WASM availability
The `opa_wasm` build flag triggers if WASM is available, but the version
logic was determining it using the `cgo` build flag.

Since it's possible to build with cgo enabled, and wasm disabled, the
output could end up being wrong.

Signed-off-by: Stephan Renatus <stephan.renatus@gmail.com>
2020-12-08 14:06:41 -05:00

84 lines
1.9 KiB
Go

// Copyright 2016 The OPA Authors. All rights reserved.
// Use of this source code is governed by an Apache2
// license that can be found in the LICENSE file.
package cmd
import (
"context"
"crypto/rand"
"fmt"
"io"
"os"
"github.com/spf13/cobra"
"github.com/open-policy-agent/opa/internal/report"
"github.com/open-policy-agent/opa/internal/uuid"
"github.com/open-policy-agent/opa/version"
)
func init() {
var check bool
var versionCommand = &cobra.Command{
Use: "version",
Short: "Print the version of OPA",
Long: "Show version and build information for OPA.",
Run: func(cmd *cobra.Command, args []string) {
generateCmdOutput(os.Stdout, check)
},
}
// The version command can also be used to check for the latest released OPA version.
// Some tools could use this for feature flagging purposes and hence this option is OFF by-default.
versionCommand.Flags().BoolVarP(&check, "check", "c", false, "check for latest OPA release")
RootCommand.AddCommand(versionCommand)
}
func generateCmdOutput(out io.Writer, check bool) {
fmt.Fprintln(out, "Version: "+version.Version)
fmt.Fprintln(out, "Build Commit: "+version.Vcs)
fmt.Fprintln(out, "Build Timestamp: "+version.Timestamp)
fmt.Fprintln(out, "Build Hostname: "+version.Hostname)
fmt.Fprintln(out, "Go Version: "+version.GoVersion)
var wasmAvailable string
if version.WasmRuntimeAvailable {
wasmAvailable = "available"
} else {
wasmAvailable = "unavailable"
}
fmt.Fprintln(out, "WebAssembly: "+wasmAvailable)
if check {
err := checkOPAUpdate(out)
if err != nil {
fmt.Fprintf(out, "Error: %v\n", err)
os.Exit(1)
}
}
}
func checkOPAUpdate(out io.Writer) error {
id, err := uuid.New(rand.Reader)
if err != nil {
return err
}
reporter, err := report.New(id)
if err != nil {
return err
}
resp, err := reporter.SendReport(context.Background())
if err != nil {
return err
}
fmt.Fprintln(out, resp.Pretty())
return nil
}