119 lines
3.9 KiB
Go
119 lines
3.9 KiB
Go
/*
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Package cmd defines user commands accessible from the cli tool.
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Copyright © 2022 Joel D. Elkins <joel@elkins.co>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package cmd
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import (
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"context"
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"fmt"
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"io"
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"os"
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"gitea.elkins.co/Networking/ccl/internal/pkg/config"
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"github.com/containers/podman/v4/pkg/bindings"
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log "github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"golang.org/x/exp/slices"
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)
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// rootCmd represents the base command when called without any subcommands
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var rootCmd = &cobra.Command{
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Use: "ccl",
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Short: "Manage a set of pre-configured of podman containers",
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Version: version,
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Long: `ccl is a utility to manage a set of podman containers. Use with various subcommands
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to define, start, stop, or update the container images. Configuration is read
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from a toml configuration file, and the utility uses this information to
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execute the necessary podman commands.`,
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ValidArgsFunction: cobra.NoFileCompletions,
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PersistentPreRun: func(cmd *cobra.Command, args []string) {
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requireConn := []string{"create", "pull", "recreate", "restart", "rm", "start", "stop", "update"}
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if slices.Contains(requireConn, cmd.Name()) {
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// connect to podman
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connectMust()
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} else {
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if err := connect(); err != nil {
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log.WithField("error", err).Warnln("Connection failed")
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}
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}
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err := config.Init(conn)
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if err != nil {
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fmt.Fprintln(os.Stderr, "Warning: Could not initialize configuration:", err)
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} else if !incDisabled {
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for _, c := range config.Categories() {
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if len(c) > 0 && c[0] == '.' {
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contMask = append(contMask, c)
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}
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}
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}
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},
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}
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var (
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conn context.Context
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output io.Writer
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verbose bool
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fake bool
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socket string
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incDisabled bool
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contMask []string
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)
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// Execute adds all child commands to the root command and sets flags appropriately.
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// This is called by main.main(). It only needs to happen once to the rootCmd.
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func Execute() {
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err := rootCmd.Execute()
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if err != nil {
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os.Exit(1)
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}
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}
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func connect() error {
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var err error
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key := struct{ string }{"output"}
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conn, err = bindings.NewConnection(context.WithValue(context.Background(), key, output), socket)
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return err
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}
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func connectMust() {
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if err := connect(); err != nil {
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log.WithField("error", err).Errorf("Could not connect")
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os.Exit(1)
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}
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}
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func init() {
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cobra.OnInitialize(func() {
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if verbose {
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output = os.Stdout
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} else {
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output = io.Discard
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}
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})
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rootCmd.PersistentFlags().StringVarP(&config.ConfigFile, "config", "c", config.ConfigFileDefault, "pathname of config file")
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rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "show additional info from command execution")
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rootCmd.PersistentFlags().BoolVarP(&fake, "no-action", "n", false, "do not actually execute commands")
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rootCmd.PersistentFlags().BoolVarP(&incDisabled, "include-disabled", "a", false, "include category=. containers in actions")
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rootCmd.PersistentFlags().StringVarP(&socket, "socket", "k", "unix:///run/podman/podman.sock", "socket address to which to connect")
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}
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