forked from mudler/yip
/
root.go
118 lines (102 loc) · 3.22 KB
/
root.go
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// Copyright 2020 Ettore Di Giacinto <mudler@mocaccino.org>
//
// 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/ioutil"
"os"
"strings"
"github.com/AdrienEti/yip/pkg/console"
"github.com/AdrienEti/yip/pkg/executor"
"github.com/AdrienEti/yip/pkg/logger"
"github.com/AdrienEti/yip/pkg/schema"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/twpayne/go-vfs"
)
// Build time and commit information.
//
// ⚠️ WARNING: should only be set by "-ldflags".
var (
BuildTime string
BuildCommit string
CLIVersion string
)
func initLogger() logger.Interface {
ll := log.New()
switch strings.ToLower(os.Getenv("LOGLEVEL")) {
case "error":
ll.SetLevel(log.ErrorLevel)
case "warning":
ll.SetLevel(log.WarnLevel)
case "debug":
ll.SetLevel(log.DebugLevel)
default:
ll.SetLevel(log.InfoLevel)
}
return ll
}
// rootCmd represents the base command when called without any subcommands
var rootCmd = &cobra.Command{
Use: "yip",
Short: "Modern go system configurator",
Version: fmt.Sprintf("%s-g%s %s", CLIVersion, BuildCommit, BuildTime),
Long: `yip loads cloud-init style yamls and applies them in the system.
For example:
$> yip -s initramfs https://<yip.yaml> /path/to/disk <definition.yaml> ...
$> yip -s initramfs <yip.yaml> <yip2.yaml> ...
$> cat def.yaml | yip -
`,
RunE: func(cmd *cobra.Command, args []string) error {
stage, _ := cmd.Flags().GetString("stage")
dot, _ := cmd.Flags().GetBool("dotnotation")
analyze, _ := cmd.Flags().GetBool("analyze")
ll := initLogger()
runner := executor.NewExecutor(executor.WithLogger(ll))
fromStdin := len(args) == 1 && args[0] == "-"
ll.Infof("yip version %s", cmd.Version)
if len(args) == 0 {
ll.Fatal("yip needs at least one path or url as argument")
}
stdConsole := console.NewStandardConsole(console.WithLogger(ll))
if dot {
runner.Modifier(schema.DotNotationModifier)
}
if fromStdin {
std, err := ioutil.ReadAll(os.Stdin)
if err != nil {
return err
}
args = []string{string(std)}
}
if analyze {
runner.Analyze(stage, vfs.OSFS, stdConsole, args...)
return nil
}
return runner.Run(stage, vfs.OSFS, stdConsole, args...)
},
}
// 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 {
log.Fatal(err)
}
}
func init() {
rootCmd.PersistentFlags().StringP("stage", "s", "default", "Stage to apply")
rootCmd.PersistentFlags().BoolP("analyze", "a", false, "Analize execution graph")
rootCmd.PersistentFlags().BoolP("dotnotation", "d", false, "Parse input in dotnotation ( e.g. `stages.foo.name=..` ) ")
}