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Merge pull request #151 from SimonRichardson/charm-actions
#151 Import/export charm actions, config, and lxd-profiles for a given charm. These represent the actual files that can be found in a charm. We require these configuration files, so that when we import a 3.6 or 4.0 model into a 4.0 controller, we can correctly infer all of the RI (referential integrity) when creating applications.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| // Copyright 2024 Canonical Ltd. | ||
| // Licensed under the LGPLv3, see LICENCE file for details. | ||
|
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| package description | ||
|
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| import ( | ||
| "github.com/juju/errors" | ||
| "github.com/juju/schema" | ||
| ) | ||
|
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| type CharmActionsArgs struct { | ||
| Actions map[string]CharmAction | ||
| } | ||
|
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| func newCharmActions(args CharmActionsArgs) *charmActions { | ||
| actions := make(map[string]charmAction) | ||
| if args.Actions != nil { | ||
| for name, a := range args.Actions { | ||
| actions[name] = charmAction{ | ||
| Description_: a.Description(), | ||
| Parallel_: a.Parallel(), | ||
| ExecutionGroup_: a.ExecutionGroup(), | ||
| Parameters_: a.Parameters(), | ||
| } | ||
| } | ||
| } | ||
|
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| return &charmActions{ | ||
| Version_: 1, | ||
| Actions_: actions, | ||
| } | ||
| } | ||
|
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| type charmActions struct { | ||
| Version_ int `yaml:"version"` | ||
| Actions_ map[string]charmAction `yaml:"actions"` | ||
| } | ||
|
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| // Actions returns the actions of the charm. | ||
| func (a *charmActions) Actions() map[string]CharmAction { | ||
| actions := make(map[string]CharmAction) | ||
| for i, b := range a.Actions_ { | ||
| actions[i] = b | ||
| } | ||
| return actions | ||
| } | ||
|
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| func importCharmActions(source map[string]interface{}) (*charmActions, error) { | ||
| version, err := getVersion(source) | ||
| if err != nil { | ||
| return nil, errors.Annotate(err, "charmActions version schema check failed") | ||
| } | ||
|
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| importFunc, ok := charmActionsDeserializationFuncs[version] | ||
| if !ok { | ||
| return nil, errors.NotValidf("version %d", version) | ||
| } | ||
| return importFunc(source) | ||
| } | ||
|
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| var charmActionsDeserializationFuncs = map[int]func(map[string]interface{}) (*charmActions, error){ | ||
| 1: importCharmActionsV1, | ||
| } | ||
|
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| func importCharmActionsV1(source map[string]interface{}) (*charmActions, error) { | ||
| return importCharmActionsVersion(source, 1) | ||
| } | ||
|
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| func importCharmActionsVersion(source map[string]interface{}, version int) (*charmActions, error) { | ||
| fields := schema.Fields{ | ||
| "actions": schema.StringMap(schema.Any()), | ||
| } | ||
| defaults := schema.Defaults{ | ||
| "actions": schema.Omit, | ||
| } | ||
| checker := schema.FieldMap(fields, defaults) | ||
|
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| coerced, err := checker.Coerce(source, nil) | ||
| if err != nil { | ||
| return nil, errors.Annotatef(err, "charmActions v1 schema check failed") | ||
| } | ||
| valid := coerced.(map[string]interface{}) | ||
|
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| var actions map[string]charmAction | ||
| if valid["actions"] != nil { | ||
| actions = make(map[string]charmAction, len(valid["actions"].(map[string]interface{}))) | ||
| for name, v := range valid["actions"].(map[string]interface{}) { | ||
| var err error | ||
| actions[name], err = importCharmAction(v) | ||
| if err != nil { | ||
| return nil, errors.Annotate(err, "charmActions actions schema check failed") | ||
| } | ||
| } | ||
| } | ||
|
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| return &charmActions{ | ||
| Version_: 1, | ||
| Actions_: actions, | ||
| }, nil | ||
| } | ||
|
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| func importCharmAction(source interface{}) (charmAction, error) { | ||
| fields := schema.Fields{ | ||
| "description": schema.String(), | ||
| "parallel": schema.Bool(), | ||
| "execution-group": schema.String(), | ||
| "parameters": schema.StringMap(schema.Any()), | ||
| } | ||
| defaults := schema.Defaults{ | ||
| "description": schema.Omit, | ||
| "parallel": false, | ||
| "execution-group": schema.Omit, | ||
| "parameters": schema.Omit, | ||
| } | ||
| checker := schema.FieldMap(fields, defaults) | ||
|
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| coerced, err := checker.Coerce(source, nil) | ||
| if err != nil { | ||
| return charmAction{}, errors.Annotatef(err, "charmAction schema check failed") | ||
| } | ||
| valid := coerced.(map[string]interface{}) | ||
|
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| var parameters map[string]interface{} | ||
| if valid["parameters"] != nil { | ||
| parameters = valid["parameters"].(map[string]interface{}) | ||
| } | ||
|
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| return charmAction{ | ||
| Description_: valid["description"].(string), | ||
| Parallel_: valid["parallel"].(bool), | ||
| ExecutionGroup_: valid["execution-group"].(string), | ||
| Parameters_: parameters, | ||
| }, nil | ||
| } | ||
|
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| type charmAction struct { | ||
| Description_ string `yaml:"description"` | ||
| Parallel_ bool `yaml:"parallel"` | ||
| ExecutionGroup_ string `yaml:"execution-group"` | ||
| Parameters_ map[string]interface{} `yaml:"parameters"` | ||
| } | ||
|
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| // Description returns the description of the action. | ||
| func (a charmAction) Description() string { | ||
| return a.Description_ | ||
| } | ||
|
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| // Parallel returns whether the action can be run in parallel. | ||
| func (a charmAction) Parallel() bool { | ||
| return a.Parallel_ | ||
| } | ||
|
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| // ExecutionGroup returns the execution group of the action. | ||
| func (a charmAction) ExecutionGroup() string { | ||
| return a.ExecutionGroup_ | ||
| } | ||
|
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| // Parameters returns the parameters of the action. | ||
| func (a charmAction) Parameters() map[string]interface{} { | ||
| return a.Parameters_ | ||
| } |
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