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//
// Copyright 2022 The Sigstore 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 app
import (
"fmt"
"strings"
homedir "github.com/mitchellh/go-homedir"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
"github.com/spf13/viper"
"sigs.k8s.io/release-utils/version"
"github.com/sigstore/timestamp-authority/pkg/log"
)
var rootCmd = &cobra.Command{
Use: "timestamp-cli",
Short: "Timestamp CLI",
Long: `Timestamp command line interface tool`,
PersistentPreRunE: func(cmd *cobra.Command, _ []string) error {
return initConfig(cmd)
},
}
// Execute runs the base CLI
func Execute() {
if err := rootCmd.Execute(); err != nil {
log.CliLogger.Fatal(err)
}
}
func init() {
initializePFlagMap()
rootCmd.PersistentFlags().String("config", "", "config file (default is $HOME/.timestamp.yaml)")
rootCmd.PersistentFlags().Var(NewFlagValue(urlFlag, "https://timestamp.sigstore.dev"), "timestamp_server", "Server host:port")
rootCmd.PersistentFlags().Var(NewFlagValue(formatFlag, "default"), "format", "Command output format")
rootCmd.PersistentFlags().Var(NewFlagValue(timeoutFlag, "30s"), "timeout", "HTTP timeout")
// these are bound here and not in PreRun so that all child commands can use them
if err := viper.BindPFlags(rootCmd.PersistentFlags()); err != nil {
log.CliLogger.Fatal(err)
}
rootCmd.AddCommand(version.Version())
}
func initConfig(cmd *cobra.Command) error {
viper.SetEnvPrefix("timestamp")
viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
viper.AutomaticEnv()
// manually set all values provided from viper through pflag validation logic
var changedFlags []string
cmd.Flags().VisitAll(func(f *pflag.Flag) {
if !f.Changed && viper.IsSet(f.Name) {
changedFlags = append(changedFlags, f.Name)
}
})
for _, flag := range changedFlags {
val := viper.Get(flag)
if err := cmd.Flags().Set(flag, fmt.Sprintf("%v", val)); err != nil {
return err
}
}
if viper.GetString("config") != "" {
viper.SetConfigFile(viper.GetString("config"))
} else {
// Find home directory.
home, err := homedir.Dir()
if err != nil {
return err
}
viper.AddConfigPath(home)
viper.SetConfigName(".timestamp")
}
if err := viper.ReadInConfig(); err != nil {
switch err.(type) {
case viper.ConfigFileNotFoundError:
default:
return err
}
} else if viper.GetString("format") == "default" {
log.CliLogger.Infof("Using config file:", viper.ConfigFileUsed())
}
return nil
}
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