cloudflared-mirror/cmd/cloudflared/cliutil/handler.go

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package cliutil
import (
"github.com/urfave/cli/v2"
"github.com/urfave/cli/v2/altsrc"
"github.com/cloudflare/cloudflared/config"
"github.com/cloudflare/cloudflared/logger"
)
func Action(actionFunc cli.ActionFunc) cli.ActionFunc {
return WithErrorHandler(actionFunc)
}
func ConfiguredAction(actionFunc cli.ActionFunc) cli.ActionFunc {
return WithErrorHandler(func(c *cli.Context) error {
if err := setFlagsFromConfigFile(c); err != nil {
return err
}
return actionFunc(c)
})
}
func setFlagsFromConfigFile(c *cli.Context) error {
const errorExitCode = 1
log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
inputSource, err := config.ReadConfigFile(c, log)
if err != nil {
if err == config.ErrNoConfigFile {
return nil
}
return cli.Exit(err, errorExitCode)
}
if err := applyConfig(c, inputSource); err != nil {
return cli.Exit(err, errorExitCode)
}
return nil
}
func applyConfig(c *cli.Context, inputSource altsrc.InputSourceContext) error {
for _, context := range c.Lineage() {
if context.Command == nil {
// we've reached the placeholder root context not associated with the app
break
}
targetFlags := context.Command.Flags
if context.Command.Name == "" {
// commands that define child subcommands are executed as if they were an app
targetFlags = context.App.Flags
}
if err := altsrc.ApplyInputSourceValues(context, inputSource, targetFlags); err != nil {
return err
}
}
return nil
}