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root.go
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root.go
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// Package cmd
//Copyright © 2022 University of Pennsylvania <support@server>>
//
//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"
"github.com/pennsieve/pennsieve-agent/cmd/agent"
"github.com/pennsieve/pennsieve-agent/cmd/config"
"github.com/pennsieve/pennsieve-agent/cmd/dataset"
"github.com/pennsieve/pennsieve-agent/cmd/manifest"
"github.com/pennsieve/pennsieve-agent/cmd/profile"
"github.com/pennsieve/pennsieve-agent/cmd/upload"
"github.com/pennsieve/pennsieve-agent/cmd/version"
"github.com/pennsieve/pennsieve-agent/cmd/whoami"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"os"
"path/filepath"
)
var cfgFile string
// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
Use: "pennsieve",
Short: "A Command Line Interface for the Pennsieve Platform.",
Long: ``,
PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
// Initialize Viper before each command/subcommand
// Except when user runs the setup config wizard
if cmd.CommandPath() == "pennsieve config wizard" ||
cmd.CommandPath() == "pennsieve config init" {
return nil
}
return initViper()
},
}
// Execute adds all child commands to the root command and sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
err := rootCmd.Execute()
if err != nil {
os.Exit(1)
}
}
func init() {
rootCmd.AddCommand(whoami.WhoamiCmd)
rootCmd.AddCommand(config.ConfigCmd)
rootCmd.AddCommand(profile.ProfileCmd)
rootCmd.AddCommand(upload.UploadCmd)
rootCmd.AddCommand(agent.AgentCmd)
rootCmd.AddCommand(manifest.ManifestCmd)
rootCmd.AddCommand(dataset.DatasetCmd)
rootCmd.AddCommand(version.VersionCmd)
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "",
"config file (default is $HOME/.pennsieve/config.ini)")
}
// initConfig reads in config file and ENV variables if set.
func initViper() error {
// initialize client after initializing Viper as it needs viper to get api key/secret
if cfgFile != "" {
// Use config file from the flag.
viper.SetConfigFile(cfgFile)
} else {
// Find home directory.
home, err := os.UserHomeDir()
cobra.CheckErr(err)
// Search config in home directory with name ".pennsieve" (without extension).
viper.SetConfigType("ini")
viper.AddConfigPath(filepath.Join(home, ".pennsieve"))
}
home, _ := os.UserHomeDir()
dbPath := filepath.Join(home, ".pennsieve/pennsieve_agent.db")
viper.SetDefault("global.default_profile", "pennsieve")
viper.SetDefault("agent.db_path", dbPath)
viper.SetDefault("agent.useConfigFile", true)
workers := os.Getenv("PENNSIEVE_AGENT_UPLOAD_WORKERS")
if len(workers) > 0 {
viper.Set("agent.upload_workers", os.Getenv("PENNSIEVE_AGENT_UPLOAD_WORKERS"))
} else {
viper.SetDefault("agent.upload_workers", "10") // Number of concurrent files during upload
}
port := os.Getenv("PENNSIEVE_AGENT_PORT")
if len(port) > 0 {
viper.Set("agent.port", os.Getenv("PENNSIEVE_AGENT_PORT"))
} else {
viper.SetDefault("agent.port", "9000")
}
chunkSize := os.Getenv("PENNSIEVE_AGENT_CHUNK_SIZE")
if len(chunkSize) > 0 {
viper.Set("agent.upload_chunk_size", os.Getenv("PENNSIEVE_AGENT_CHUNK_SIZE"))
} else {
viper.SetDefault("agent.upload_chunk_size", "32")
}
apiKey := os.Getenv("PENNSIEVE_API_KEY")
// use API Key and TOKEN from ENV vars if they exist
if len(apiKey) > 0 {
viper.Set("pennsieve.api_token", apiKey)
apiSecret := os.Getenv("PENNSIEVE_API_SECRET")
if len(apiSecret) == 0 {
fmt.Println("Need to set PENNSIEVE_API_SECRET when PENNSIEVE_API_KEY is set as an ENV variable")
os.Exit(1)
}
viper.Set("pennsieve.api_secret", apiSecret)
viper.Set("agent.useConfigFile", false)
} else {
// Load from config file if it exists
if err := viper.ReadInConfig(); err != nil {
if viper.GetBool("agent.useConfigFile") {
fmt.Println("No Pennsieve configuration file exists.")
fmt.Println("\nPlease use `pennsieve config wizard` to setup your Pennsieve profile, or")
fmt.Println("\nset the PENNSIEVE_API_KEY and PENNSIEVE_API_SECRET environment variables.")
os.Exit(1)
}
}
}
return nil
}