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cmd.go
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cmd.go
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/*
Copyright 2018 The Kubernetes Authors & The Jenkins X Authors
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 cmd
import (
"fmt"
"io"
"os"
"os/exec"
"runtime"
"strings"
"syscall"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/jenkins-x/jx/pkg/extensions"
"github.com/jenkins-x/jx/pkg/log"
"github.com/jenkins-x/jx/pkg/jx/cmd/templates"
"github.com/jenkins-x/jx/pkg/version"
"github.com/spf13/cobra"
"gopkg.in/AlecAivazis/survey.v1/terminal"
)
const (
// * runs (aka 'run')
valid_resources = `Valid resource types include:
* environments (aka 'env')
* pipelines (aka 'pipe')
* urls (aka 'url')
`
)
// NewJXCommand creates the `jx` command and its nested children.
// args used to determine binary plugin to run can be overridden (does not affect compiled in commands).
func NewJXCommand(f Factory, in terminal.FileReader, out terminal.FileWriter,
err io.Writer, args []string) *cobra.Command {
cmds := &cobra.Command{
Use: "jx",
Short: "jx is a command line tool for working with Jenkins X",
//Long: ``,
Run: runHelp,
/*
BashCompletionFunction: bash_completion_func,
*/
}
addCommands := NewCmdAdd(f, in, out, err)
createCommands := NewCmdCreate(f, in, out, err)
deleteCommands := NewCmdDelete(f, in, out, err)
getCommands := NewCmdGet(f, in, out, err)
editCommands := NewCmdEdit(f, in, out, err)
updateCommands := NewCmdUpdate(f, in, out, err)
installCommands := []*cobra.Command{
NewCmdInstall(f, in, out, err),
NewCmdUninstall(f, in, out, err),
NewCmdUpgrade(f, in, out, err),
}
installCommands = append(installCommands, findCommands("cluster", createCommands, deleteCommands)...)
installCommands = append(installCommands, findCommands("cluster", updateCommands)...)
installCommands = append(installCommands, findCommands("jenkins token", createCommands, deleteCommands)...)
installCommands = append(installCommands, NewCmdInit(f, in, out, err))
addProjectCommands := []*cobra.Command{
NewCmdImport(f, in, out, err),
}
addProjectCommands = append(addProjectCommands, findCommands("create archetype", createCommands, deleteCommands)...)
addProjectCommands = append(addProjectCommands, findCommands("create spring", createCommands, deleteCommands)...)
addProjectCommands = append(addProjectCommands, findCommands("create lile", createCommands, deleteCommands)...)
addProjectCommands = append(addProjectCommands, findCommands("create micro", createCommands, deleteCommands)...)
addProjectCommands = append(addProjectCommands, findCommands("create quickstart", createCommands, deleteCommands)...)
gitCommands := []*cobra.Command{}
gitCommands = append(gitCommands, findCommands("git server", createCommands, deleteCommands)...)
gitCommands = append(gitCommands, findCommands("git token", createCommands, deleteCommands)...)
gitCommands = append(gitCommands, NewCmdRepo(f, in, out, err))
addonCommands := []*cobra.Command{}
addonCommands = append(addonCommands, findCommands("addon", createCommands, deleteCommands)...)
addonCommands = append(addonCommands, findCommands("app", createCommands, deleteCommands, addCommands)...)
environmentsCommands := []*cobra.Command{
NewCmdPreview(f, in, out, err),
NewCmdPromote(f, in, out, err),
}
environmentsCommands = append(environmentsCommands, findCommands("environment", createCommands, deleteCommands, editCommands, getCommands)...)
groups := templates.CommandGroups{
{
Message: "Installing:",
Commands: installCommands,
},
{
Message: "Adding Projects to Jenkins X:",
Commands: addProjectCommands,
},
{
Message: "Apps:",
Commands: addonCommands,
},
{
Message: "Git:",
Commands: gitCommands,
},
{
Message: "Working with Kubernetes:",
Commands: []*cobra.Command{
NewCompliance(f, in, out, err),
NewCmdCompletion(f, in, out, err),
NewCmdContext(f, in, out, err),
NewCmdEnvironment(f, in, out, err),
NewCmdTeam(f, in, out, err),
NewCmdNamespace(f, in, out, err),
NewCmdPrompt(f, in, out, err),
NewCmdScan(f, in, out, err),
NewCmdShell(f, in, out, err),
NewCmdStatus(f, in, out, err),
},
},
{
Message: "Working with Applications:",
Commands: []*cobra.Command{
NewCmdConsole(f, in, out, err),
NewCmdLogs(f, in, out, err),
NewCmdOpen(f, in, out, err),
NewCmdRsh(f, in, out, err),
NewCmdSync(f, in, out, err),
},
},
{
Message: "Working with CloudBees application:",
Commands: []*cobra.Command{
NewCmdCloudBees(f, in, out, err),
NewCmdLogin(f, in, out, err),
},
},
{
Message: "Working with Environments:",
Commands: environmentsCommands,
},
{
Message: "Working with Jenkins X resources:",
Commands: []*cobra.Command{
getCommands,
editCommands,
createCommands,
updateCommands,
deleteCommands,
addCommands,
NewCmdStart(f, in, out, err),
NewCmdStop(f, in, out, err),
},
},
{
Message: "Jenkins X Pipeline Commands:",
Commands: []*cobra.Command{
NewCmdStep(f, in, out, err),
},
},
{
Message: "Jenkins X services:",
Commands: []*cobra.Command{
NewCmdController(f, in, out, err),
NewCmdGC(f, in, out, err),
},
},
}
groups.Add(cmds)
filters := []string{"options"}
commonOptions := CommonOptions{
Factory: f,
In: in,
Out: out,
Err: err,
}
getPluginCommandGroups := func() (templates.PluginCommandGroups, bool) {
verifier := &extensions.CommandOverrideVerifier{
Root: cmds,
SeenPlugins: make(map[string]string, 0),
}
pluginCommandGroups, managedPluginsEnabled, err := commonOptions.getPluginCommandGroups(verifier)
if err != nil {
log.Errorf("%v\n", err)
}
return pluginCommandGroups, managedPluginsEnabled
}
templates.ActsAsRootCommand(cmds, filters, getPluginCommandGroups, groups...)
cmds.AddCommand(NewCmdDocs(f, in, out, err))
cmds.AddCommand(NewCmdVersion(f, in, out, err))
cmds.Version = version.GetVersion()
cmds.SetVersionTemplate("{{printf .Version}}\n")
cmds.AddCommand(NewCmdOptions(out))
cmds.AddCommand(NewCmdDiagnose(f, in, out, err))
managedPlugins := &managedPluginHandler{
CommonOptions: commonOptions,
}
localPlugins := &localPluginHandler{}
if len(args) == 0 {
args = os.Args
}
if len(args) > 1 {
cmdPathPieces := args[1:]
// only look for suitable executables if
// the specified command does not already exist
if _, _, err := cmds.Find(cmdPathPieces); err != nil {
if _, managedPluginsEnabled := getPluginCommandGroups(); managedPluginsEnabled {
if err := handleEndpointExtensions(managedPlugins, cmdPathPieces); err != nil {
log.Errorf("%v\n", err)
os.Exit(1)
}
} else {
if err := handleEndpointExtensions(localPlugins, cmdPathPieces); err != nil {
log.Errorf("%v\n", err)
os.Exit(1)
}
}
}
}
return cmds
}
func findCommands(subCommand string, commands ...*cobra.Command) []*cobra.Command {
answer := []*cobra.Command{}
for _, parent := range commands {
for _, c := range parent.Commands() {
if commandHasParentName(c, subCommand) {
answer = append(answer, c)
} else {
childCommands := findCommands(subCommand, c)
if len(childCommands) > 0 {
answer = append(answer, childCommands...)
}
}
}
}
return answer
}
func commandHasParentName(command *cobra.Command, name string) bool {
path := fullPath(command)
return strings.Contains(path, name)
}
func fullPath(command *cobra.Command) string {
name := command.Name()
parent := command.Parent()
if parent != nil {
return fullPath(parent) + " " + name
}
return name
}
func runHelp(cmd *cobra.Command, args []string) {
cmd.Help()
}
// PluginHandler is capable of parsing command line arguments
// and performing executable filename lookups to search
// for valid plugin files, and execute found plugins.
type PluginHandler interface {
// Lookup receives a potential filename and returns
// a full or relative path to an executable, if one
// exists at the given filename, or an error.
Lookup(filename string) (string, error)
// Execute receives an executable's filepath, a slice
// of arguments, and a slice of environment variables
// to relay to the executable.
Execute(executablePath string, cmdArgs, environment []string) error
}
type managedPluginHandler struct {
CommonOptions
localPluginHandler
}
// Lookup implements PluginHandler
func (h *managedPluginHandler) Lookup(filename string) (string, error) {
jxClient, ns, err := h.JXClientAndDevNamespace()
if err != nil {
return "", err
}
possibles, err := jxClient.JenkinsV1().Plugins(ns).List(metav1.ListOptions{
LabelSelector: fmt.Sprintf("%s=%s", extensions.PluginCommandLabel, filename),
})
if err != nil {
return "", err
}
if len(possibles.Items) > 0 {
found := possibles.Items[0]
if len(possibles.Items) > 1 {
// There is a warning about this when you install extensions as well
log.Warnf("More than one plugin installed for %s by apps. Selecting the one installed by %s at random.\n",
filename, found.Name)
}
return extensions.EnsurePluginInstalled(found)
}
return h.localPluginHandler.Lookup(filename)
}
// Execute implements PluginHandler
func (h *managedPluginHandler) Execute(executablePath string, cmdArgs, environment []string) error {
return h.localPluginHandler.Execute(executablePath, cmdArgs, environment)
}
type localPluginHandler struct{}
// Lookup implements PluginHandler
func (h *localPluginHandler) Lookup(filename string) (string, error) {
// if on Windows, append the "exe" extension
// to the filename that we are looking up.
if runtime.GOOS == "windows" {
filename = filename + ".exe"
}
return exec.LookPath(filename)
}
// Execute implements PluginHandler
func (h *localPluginHandler) Execute(executablePath string, cmdArgs, environment []string) error {
return syscall.Exec(executablePath, cmdArgs, environment)
}
func handleEndpointExtensions(pluginHandler PluginHandler, cmdArgs []string) error {
remainingArgs := []string{} // all "non-flag" arguments
for idx := range cmdArgs {
if strings.HasPrefix(cmdArgs[idx], "-") {
break
}
remainingArgs = append(remainingArgs, strings.Replace(cmdArgs[idx], "-", "_", -1))
}
foundBinaryPath := ""
// attempt to find binary, starting at longest possible name with given cmdArgs
for len(remainingArgs) > 0 {
path, err := pluginHandler.Lookup(fmt.Sprintf("jx-%s", strings.Join(remainingArgs, "-")))
if err != nil || len(path) == 0 {
/* Usually "executable file not found in $PATH", spams output of jx help subcommand:
if err != nil {
log.Errorf("Error installing plugin for command %s. %v\n", remainingArgs, err)
}
*/
remainingArgs = remainingArgs[:len(remainingArgs)-1]
continue
}
foundBinaryPath = path
break
}
if len(foundBinaryPath) == 0 {
return nil
}
// invoke cmd binary relaying the current environment and args given
// remainingArgs will always have at least one element.
// execve will make remainingArgs[0] the "binary name".
if err := pluginHandler.Execute(foundBinaryPath, append([]string{foundBinaryPath}, cmdArgs[len(remainingArgs):]...), os.Environ()); err != nil {
return err
}
return nil
}