mirror of
https://github.com/kubernetes-sigs/kustomize.git
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108 lines
3.4 KiB
Go
108 lines
3.4 KiB
Go
// Copyright 2019 The Kubernetes Authors.
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// SPDX-License-Identifier: Apache-2.0
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package add
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import (
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"fmt"
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"strings"
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"sigs.k8s.io/kustomize/api/types"
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"sigs.k8s.io/kustomize/api/filesys"
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"sigs.k8s.io/kustomize/kustomize/v4/commands/internal/util"
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)
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// flagsAndArgs encapsulates the options for add secret/configmap commands.
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type flagsAndArgs struct {
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// Name of configMap/Secret (required)
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Name string
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// FileSources to derive the configMap/Secret from (optional)
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FileSources []string
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// LiteralSources to derive the configMap/Secret from (optional)
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LiteralSources []string
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// EnvFileSource to derive the configMap/Secret from (optional)
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// TODO: Rationalize this name with Generic.EnvSource
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EnvFileSource string
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// Resource generation behavior (optional)
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Behavior string
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// Type of secret to create
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Type string
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// Namespace of secret
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Namespace string
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// Disable name suffix
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DisableNameSuffixHash bool
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}
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// Validate validates required fields are set to support structured generation.
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func (a *flagsAndArgs) Validate(args []string) error {
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if len(args) != 1 {
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return fmt.Errorf("name must be specified once")
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}
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a.Name = args[0]
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if len(a.EnvFileSource) == 0 && len(a.FileSources) == 0 && len(a.LiteralSources) == 0 {
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return fmt.Errorf("at least from-env-file, or from-file or from-literal must be set")
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}
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if len(a.EnvFileSource) > 0 && (len(a.FileSources) > 0 || len(a.LiteralSources) > 0) {
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return fmt.Errorf("from-env-file cannot be combined with from-file or from-literal")
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}
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if len(a.Behavior) > 0 && types.NewGenerationBehavior(a.Behavior) == types.BehaviorUnspecified {
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return fmt.Errorf(`invalid behavior: must be one of "%s", "%s", or "%s"`,
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types.BehaviorCreate, types.BehaviorMerge, types.BehaviorReplace)
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}
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// TODO: Should we check if the path exists? if it's valid, if it's within the same (sub-)directory?
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return nil
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}
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// ExpandFileSource normalizes a string list, possibly
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// containing globs, into a validated, globless list.
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// For example, this list:
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// some/path
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// some/dir/a*
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// bfile=some/dir/b*
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// becomes:
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// some/path
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// some/dir/airplane
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// some/dir/ant
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// some/dir/apple
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// bfile=some/dir/banana
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// i.e. everything is converted to a key=value pair,
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// where the value is always a relative file path,
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// and the key, if missing, is the same as the value.
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// In the case where the key is explicitly declared,
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// the globbing, if present, must have exactly one match.
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func (a *flagsAndArgs) ExpandFileSource(fSys filesys.FileSystem) error {
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var results []string
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for _, pattern := range a.FileSources {
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var patterns []string
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key := ""
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// check if the pattern is in `--from-file=[key=]source` format
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// and if so split it to send only the file-pattern to glob function
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s := strings.Split(pattern, "=")
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if len(s) == 2 {
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patterns = append(patterns, s[1])
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key = s[0]
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} else {
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patterns = append(patterns, s[0])
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}
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result, err := util.GlobPatterns(fSys, patterns)
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if err != nil {
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return err
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}
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// if the format is `--from-file=[key=]source` accept only one result
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// and extend it with the `key=` prefix
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if key != "" {
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if len(result) != 1 {
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return fmt.Errorf(
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"'pattern '%s' catches files %v, should catch only one", pattern, result)
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}
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fileSource := fmt.Sprintf("%s=%s", key, result[0])
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results = append(results, fileSource)
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} else {
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results = append(results, result...)
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}
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}
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a.FileSources = results
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return nil
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}
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