mirror of
https://github.com/open-policy-agent/opa.git
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Anders Eknert
39d0e4ec03
* Use two spaces to indent JSON, not one * Fix wrong closing tag in built-in reference Signed-off-by: Anders Eknert <anders@styra.com>
125 lines
2.7 KiB
Go
125 lines
2.7 KiB
Go
// Copyright 2022 The OPA Authors. All rights reserved.
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// Use of this source code is governed by an Apache2
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// license that can be found in the LICENSE file.
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package cmd
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import (
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"encoding/json"
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"fmt"
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"strings"
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"github.com/open-policy-agent/opa/ast"
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"github.com/spf13/cobra"
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)
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type capabilitiesParams struct {
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showCurrent bool
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version string
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file string
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}
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func init() {
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capabilitiesParams := capabilitiesParams{}
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var capabilitiesCommand = &cobra.Command{
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Use: "capabilities",
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Short: "Print the capabilities of OPA",
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Long: `Show capabilities for OPA.
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The 'capabilities' command prints the OPA capabilities, prior to and including the version of OPA used.
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Print a list of all existing capabilities version names
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$ opa capabilities
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v0.17.0
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v0.17.1
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...
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v0.37.1
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v0.37.2
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v0.38.0
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...
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Print the capabilities of the current version
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$ opa capabilities --current
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{
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"builtins": [...],
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"future_keywords": [...],
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"wasm_abi_versions": [...]
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}
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Print the capabilities of a specific version
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$ opa capabilities --version v0.32.1
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{
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"builtins": [...],
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"future_keywords": null,
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"wasm_abi_versions": [...]
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}
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Print the capabilities of a capabilities file
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$ opa capabilities --file ./capabilities/v0.32.1.json
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{
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"builtins": [...],
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"future_keywords": null,
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"wasm_abi_versions": [...]
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}
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`,
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RunE: func(*cobra.Command, []string) error {
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cs, err := doCapabilities(capabilitiesParams)
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if err != nil {
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return err
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}
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fmt.Println(cs)
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return nil
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},
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}
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capabilitiesCommand.Flags().BoolVar(&capabilitiesParams.showCurrent, "current", false, "print current capabilities")
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capabilitiesCommand.Flags().StringVar(&capabilitiesParams.version, "version", "", "print capabilities of a specific version")
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capabilitiesCommand.Flags().StringVar(&capabilitiesParams.file, "file", "", "print current capabilities")
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RootCommand.AddCommand(capabilitiesCommand)
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}
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func doCapabilities(params capabilitiesParams) (string, error) {
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var (
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c *ast.Capabilities
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err error
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)
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if len(params.version) > 0 {
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c, err = ast.LoadCapabilitiesVersion(params.version)
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} else if len(params.file) > 0 {
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c, err = ast.LoadCapabilitiesFile(params.file)
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} else if params.showCurrent {
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c = ast.CapabilitiesForThisVersion()
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} else {
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return showVersions()
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}
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if err != nil {
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return "", err
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}
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bs, err := json.MarshalIndent(c, "", " ")
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if err != nil {
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return "", err
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}
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return string(bs), nil
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}
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func showVersions() (string, error) {
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cvs, err := ast.LoadCapabilitiesVersions()
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if err != nil {
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return "", err
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}
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t := strings.Join(cvs, "\n")
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return t, nil
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}
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