forked from hswaw/hscloud
108 lines
2.8 KiB
Go
108 lines
2.8 KiB
Go
// Copyright 2017 The kubecfg authors
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//
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"fmt"
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"os"
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"github.com/mattn/go-isatty"
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"github.com/spf13/cobra"
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"code.hackerspace.pl/hscloud/cluster/tools/kartongips/pkg/kubecfg"
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)
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const (
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// TODO(b/49): remove this flag
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flagDiffStrategy = "diff-strategy"
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flagOmitSecrets = "omit-secrets"
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)
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func init() {
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diffCmd.PersistentFlags().String(flagDiffStrategy, "", "Diff strategy - no op (will be removed soon)")
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diffCmd.PersistentFlags().Bool(flagOmitSecrets, false, "hide secret details when showing diff")
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RootCmd.AddCommand(diffCmd)
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}
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// nagStrategy nags the user about selecting strategy=subset explicitly -
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// either hint at not having to use it if subset is specified, or fail hard if
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// something else is set.
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//
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// TODO(b/49): remove this
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func nagStrategy(chosen string) {
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if chosen == "" {
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return
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}
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color := isatty.IsTerminal(os.Stdout.Fd())
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if chosen == "subset" {
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if color {
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fmt.Fprintf(os.Stdout, "\x1b[92m")
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}
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fmt.Fprintf(os.Stdout, "--diff-strategy=subset is now the default behaviour of kartongips/kubecfg, no need to explicitly set it.\n")
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fmt.Fprintf(os.Stdout, "Work on your muscle memory and fix your scripts! This flag will be removed soon (see: b.hswaw.net/49).\n")
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if color {
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fmt.Fprintf(os.Stdout, "\x1b[0m")
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}
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return
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}
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fmt.Fprintf(os.Stderr, "--diff-strategy is deprecated, the default behaviour is now 'subset' and all other modes of operation have been removed. See: b.hswaw.net/49.\n")
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os.Exit(1)
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}
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var diffCmd = &cobra.Command{
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Use: "diff",
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Short: "Display differences between server and local config",
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Args: cobra.ArbitraryArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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flags := cmd.Flags()
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var err error
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c := kubecfg.DiffCmd{}
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diffStrategy, err := flags.GetString(flagDiffStrategy)
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if err != nil {
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return err
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}
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nagStrategy(diffStrategy)
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c.OmitSecrets, err = flags.GetBool(flagOmitSecrets)
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if err != nil {
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return err
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}
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c.Client, c.Mapper, _, err = getDynamicClients(cmd)
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if err != nil {
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return err
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}
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c.DefaultNamespace, err = defaultNamespace(clientConfig)
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if err != nil {
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return err
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}
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objs, err := readObjs(cmd, args)
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if err != nil {
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return err
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}
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err = c.Run(cmd.Context(), objs, cmd.OutOrStdout())
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nagStrategy(diffStrategy)
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return err
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},
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}
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