refactor: migrate docker-options subcommands to go
Ports the user-facing CLI subcommands and lifecycle triggers from bash to go, mirroring the layout used by the ports plugin. The on-disk format (`DOCKER_OPTIONS_BUILD/DEPLOY/RUN` files), the `docker-args-build/deploy/run` triggers, and every exported helper consumed by other plugins are unchanged. Reserves the `--process` and `--global` flags on add, remove, and clear so usage today exits with a not-yet-implemented error and the surface is locked in ahead of the process-scoping work tracked in #2441.
This commit is contained in:
Jose Diaz-Gonzalez
57
plugins/docker-options/src/commands/commands.go
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57
plugins/docker-options/src/commands/commands.go
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package main
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import (
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"flag"
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"fmt"
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"os"
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"strconv"
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"strings"
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"github.com/dokku/dokku/plugins/common"
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)
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const (
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helpHeader = `Usage: dokku docker-options[:COMMAND]
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Manage docker options for an app
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Additional commands:`
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helpContent = `
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docker-options:add <app> <phase(s)> OPTION, Add Docker option to app for phase (comma separated phase list)
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docker-options:clear <app> [phase(s)], Clear a docker options from application with an optional phase (comma separated phase list)
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docker-options:remove <app> <phase(s)> OPTION, Remove Docker option from app for phase (comma separated phase list)
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docker-options:report [<app>] [<flag>], Displays a docker options report for one or more apps`
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)
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func main() {
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flag.Usage = usage
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flag.Parse()
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cmd := flag.Arg(0)
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switch cmd {
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case "docker-options", "docker-options:help":
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usage()
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case "help":
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result, err := common.CallExecCommand(common.ExecCommandInput{
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Command: "ps",
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Args: []string{"-o", "command=", strconv.Itoa(os.Getppid())},
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})
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if err == nil && strings.Contains(result.StdoutContents(), "--all") {
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fmt.Println(helpContent)
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} else {
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fmt.Print("\n docker-options, Manage docker options for an app\n")
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}
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default:
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dokkuNotImplementExitCode, err := strconv.Atoi(os.Getenv("DOKKU_NOT_IMPLEMENTED_EXIT"))
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if err != nil {
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fmt.Println("failed to retrieve DOKKU_NOT_IMPLEMENTED_EXIT environment variable")
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dokkuNotImplementExitCode = 10
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}
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os.Exit(dokkuNotImplementExitCode)
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}
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}
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func usage() {
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common.CommandUsage(helpHeader, helpContent)
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}
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109
plugins/docker-options/src/subcommands/subcommands.go
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109
plugins/docker-options/src/subcommands/subcommands.go
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package main
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import (
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"fmt"
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"os"
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"strings"
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"github.com/dokku/dokku/plugins/common"
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dockeroptions "github.com/dokku/dokku/plugins/docker-options"
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flag "github.com/spf13/pflag"
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)
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func main() {
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parts := strings.Split(os.Args[0], "/")
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subcommand := parts[len(parts)-1]
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var err error
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switch subcommand {
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case "add":
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args := flag.NewFlagSet("docker-options:add", flag.ExitOnError)
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args.SetInterspersed(false)
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processes := args.StringSlice("process", []string{}, "process types to scope this option to (reserved for future use)")
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global := args.Bool("global", false, "explicitly mark as a global option (reserved for future use)")
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args.Parse(os.Args[2:])
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if err = dockeroptions.ErrIfReservedFlagsUsed(*processes, *global); err != nil {
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break
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}
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positional := args.Args()
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appName := ""
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phases := ""
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var optionParts []string
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if len(positional) > 0 {
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appName = positional[0]
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}
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if len(positional) > 1 {
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phases = positional[1]
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}
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if len(positional) > 2 {
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optionParts = positional[2:]
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}
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err = dockeroptions.CommandAdd(appName, phases, strings.Join(optionParts, " "))
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case "remove":
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args := flag.NewFlagSet("docker-options:remove", flag.ExitOnError)
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args.SetInterspersed(false)
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processes := args.StringSlice("process", []string{}, "process types to scope this option to (reserved for future use)")
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global := args.Bool("global", false, "explicitly mark as a global option (reserved for future use)")
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args.Parse(os.Args[2:])
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if err = dockeroptions.ErrIfReservedFlagsUsed(*processes, *global); err != nil {
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break
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}
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positional := args.Args()
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appName := ""
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phases := ""
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var optionParts []string
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if len(positional) > 0 {
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appName = positional[0]
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}
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if len(positional) > 1 {
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phases = positional[1]
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}
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if len(positional) > 2 {
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optionParts = positional[2:]
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}
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err = dockeroptions.CommandRemove(appName, phases, strings.Join(optionParts, " "))
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case "clear":
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args := flag.NewFlagSet("docker-options:clear", flag.ExitOnError)
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args.SetInterspersed(false)
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processes := args.StringSlice("process", []string{}, "process types to scope this option to (reserved for future use)")
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global := args.Bool("global", false, "explicitly mark as a global option (reserved for future use)")
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args.Parse(os.Args[2:])
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if err = dockeroptions.ErrIfReservedFlagsUsed(*processes, *global); err != nil {
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break
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}
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positional := args.Args()
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appName := ""
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phases := ""
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if len(positional) > 0 {
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appName = positional[0]
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}
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if len(positional) > 1 {
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phases = positional[1]
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}
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err = dockeroptions.CommandClear(appName, phases)
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case "report":
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args := flag.NewFlagSet("docker-options:report", flag.ExitOnError)
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format := args.String("format", "stdout", "format: [ stdout | json ]")
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osArgs, infoFlag, flagErr := common.ParseReportArgs("docker-options", os.Args[2:])
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if flagErr == nil {
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args.Parse(osArgs)
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appName := args.Arg(0)
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err = dockeroptions.CommandReport(appName, *format, infoFlag)
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} else {
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err = flagErr
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}
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default:
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err = fmt.Errorf("Invalid plugin subcommand call: %s", subcommand)
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}
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if err != nil {
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common.LogFailWithError(err)
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}
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}
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41
plugins/docker-options/src/triggers/triggers.go
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41
plugins/docker-options/src/triggers/triggers.go
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@@ -0,0 +1,41 @@
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package main
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import (
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"flag"
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"fmt"
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"os"
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"strings"
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"github.com/dokku/dokku/plugins/common"
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dockeroptions "github.com/dokku/dokku/plugins/docker-options"
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)
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func main() {
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parts := strings.Split(os.Args[0], "/")
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trigger := parts[len(parts)-1]
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flag.Parse()
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var err error
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switch trigger {
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case "post-app-clone-setup":
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oldAppName := flag.Arg(0)
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newAppName := flag.Arg(1)
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err = dockeroptions.TriggerPostAppCloneSetup(oldAppName, newAppName)
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case "post-app-rename-setup":
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oldAppName := flag.Arg(0)
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newAppName := flag.Arg(1)
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err = dockeroptions.TriggerPostAppRenameSetup(oldAppName, newAppName)
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case "post-delete":
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appName := flag.Arg(0)
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err = dockeroptions.TriggerPostDelete(appName)
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case "report":
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appName := flag.Arg(0)
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err = dockeroptions.ReportSingleApp(appName, "", "")
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default:
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err = fmt.Errorf("Invalid plugin trigger call: %s", trigger)
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}
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if err != nil {
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common.LogFailWithError(err)
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}
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}
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