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Refactor code so we are not passing in values and only using the defa…
…ults from the module config Signed-off-by: Luke Mallon (Nalum) <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| /* | ||
| Copyright 2023 Stefan Prodan | ||
| 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 engine | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "regexp" | ||
| "strings" | ||
|
|
||
| "cuelang.org/go/cue" | ||
| "cuelang.org/go/cue/ast" | ||
| "cuelang.org/go/cue/load" | ||
|
|
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| apiv1 "github.com/stefanprodan/timoni/api/v1alpha1" | ||
| ) | ||
|
|
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| // GetConfigDoc extracts the config structure from the module. | ||
| func (b *ModuleBuilder) GetConfigDoc() ([][]string, error) { | ||
| var value cue.Value | ||
|
|
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| cfg := &load.Config{ | ||
| ModuleRoot: b.moduleRoot, | ||
| Package: b.pkgName, | ||
| Dir: b.pkgPath, | ||
| DataFiles: true, | ||
| Tags: []string{ | ||
| "name=" + b.name, | ||
| "namespace=" + b.namespace, | ||
| }, | ||
| TagVars: map[string]load.TagVar{ | ||
| "moduleVersion": { | ||
| Func: func() (ast.Expr, error) { | ||
| return ast.NewString(b.moduleVersion), nil | ||
| }, | ||
| }, | ||
| "kubeVersion": { | ||
| Func: func() (ast.Expr, error) { | ||
| return ast.NewString(b.kubeVersion), nil | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
|
|
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| modInstances := load.Instances([]string{}, cfg) | ||
| if len(modInstances) == 0 { | ||
| return nil, errors.New("no instances found") | ||
| } | ||
|
|
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| modInstance := modInstances[0] | ||
| if modInstance.Err != nil { | ||
| return nil, fmt.Errorf("instance error: %w", modInstance.Err) | ||
| } | ||
|
|
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| value = b.ctx.BuildInstance(modInstance) | ||
| if value.Err() != nil { | ||
| return nil, value.Err() | ||
| } | ||
|
|
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| cfgValues := value.LookupPath(cue.ParsePath(apiv1.ConfigValuesSelector.String())) | ||
| if cfgValues.Err() != nil { | ||
| return nil, fmt.Errorf("lookup %s failed: %w", apiv1.ConfigValuesSelector, cfgValues.Err()) | ||
| } | ||
|
|
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| rows, err := iterateFields(cfgValues) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| return rows, nil | ||
| } | ||
|
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| func iterateFields(v cue.Value) ([][]string, error) { | ||
| var rows [][]string | ||
|
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| fields, err := v.Fields( | ||
| cue.Optional(true), | ||
| cue.Concrete(true), | ||
| cue.Docs(true), | ||
| ) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("Cue Fields Error: %w", err) | ||
| } | ||
|
|
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| for fields.Next() { | ||
| v := fields.Value() | ||
|
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| // We are chekcing if the field is a struct and not optional and is concrete before we iterate through it | ||
| // this allows for definition of default values as full structs without generating output for each | ||
| // field in the struct where it doesn't make sense e.g. | ||
| // | ||
| // - annotations?: {[string]: string} | ||
| // - affinity: corev1.Affinity | *{nodeAffinity: requiredDuringSchedulingIgnoredDuringExecution: nodeSelectorTerms: [...]} | ||
| if v.IncompleteKind() == cue.StructKind && !fields.IsOptional() && v.IsConcrete() { | ||
| iRows, err := iterateFields(v) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| rows = append(rows, iRows...) | ||
| } else { | ||
| rows = append(rows, getField(v)) | ||
| } | ||
| } | ||
|
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| return rows, nil | ||
| } | ||
|
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| func getField(v cue.Value) []string { | ||
| var row []string | ||
| labelDomain := regexp.MustCompile(`^([a-zA-Z0-9-_.]+)?(".+")?$`) | ||
|
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| var noDoc bool | ||
| var doc string | ||
|
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| for _, d := range v.Doc() { | ||
| if line := len(d.List) - 1; line >= 0 { | ||
| switch d.List[line].Text { | ||
| case "// +nodoc": | ||
| noDoc = true | ||
| break | ||
| } | ||
| } | ||
|
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| doc += d.Text() | ||
| doc = strings.ReplaceAll(doc, "\n", " ") | ||
| doc = strings.ReplaceAll(doc, "+required", "") | ||
| doc = strings.ReplaceAll(doc, "+optional", "") | ||
| } | ||
|
|
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| if !noDoc { | ||
| defaultVal, _ := v.Default() | ||
| valueBytes, _ := defaultVal.MarshalJSON() | ||
| valueType := strings.ReplaceAll(v.IncompleteKind().String(), "|", "\\|") | ||
|
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| value := strings.ReplaceAll(string(valueBytes), "\":", "\": ") | ||
| value = strings.ReplaceAll(value, "\":[", "\": [") | ||
| value = strings.ReplaceAll(value, "},", "}, ") | ||
| value = strings.ReplaceAll(value, "|", "\\|") | ||
|
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| field := strings.Replace(v.Path().String(), "timoni.instance.config.", "", 1) | ||
| match := labelDomain.FindStringSubmatch(field) | ||
|
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| row = append(row, fmt.Sprintf("`%s:`", strings.ReplaceAll(match[1], ".", ": ")+match[2])) | ||
| row = append(row, fmt.Sprintf("`%s`", valueType)) | ||
| row = append(row, fmt.Sprintf("`%s`", value)) | ||
| row = append(row, fmt.Sprintf("%s", doc)) | ||
| } | ||
|
|
||
| return row | ||
| } |
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