mirror of https://github.com/grafana/grafana.git
90 lines
2.8 KiB
Go
90 lines
2.8 KiB
Go
package cuectx
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import (
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"fmt"
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"sort"
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"strings"
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"cuelang.org/go/cue/ast"
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tsast "github.com/grafana/cuetsy/ts/ast"
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)
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// CUE import paths, mapped to corresponding TS import paths. An empty value
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// indicates the import path should be dropped in the conversion to TS. Imports
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// not present in the list are not allowed, and code generation will fail.
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var importMap = map[string]string{
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"github.com/grafana/thema": "",
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"github.com/grafana/kindsys": "",
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"github.com/grafana/grafana/pkg/plugins/pfs": "",
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"github.com/grafana/grafana/packages/grafana-schema/src/common": "@grafana/schema",
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}
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func init() {
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allow := PermittedCUEImports()
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strsl := make([]string, 0, len(importMap))
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for p := range importMap {
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strsl = append(strsl, p)
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}
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sort.Strings(strsl)
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sort.Strings(allow)
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if strings.Join(strsl, "") != strings.Join(allow, "") {
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panic("CUE import map is not the same as permitted CUE import list - these files must be kept in sync!")
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}
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}
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// PermittedCUEImports returns the list of import paths that may be imported in
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// Grafana kind definitions.
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func PermittedCUEImports() []string {
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return []string{
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"github.com/grafana/thema",
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"github.com/grafana/kindsys",
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"github.com/grafana/grafana/pkg/plugins/pfs",
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"github.com/grafana/grafana/packages/grafana-schema/src/common",
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}
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}
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// MapCUEImportToTS maps the provided CUE import path to the corresponding
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// TypeScript import path in generated code.
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//
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// Providing an import path that is not allowed results in an error. If a nil
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// error and empty string are returned, the import path should be dropped in
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// generated code.
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func MapCUEImportToTS(path string) (string, error) {
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i, has := importMap[path]
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if !has {
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return "", fmt.Errorf("import %q in models.cue is not allowed", path)
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}
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return i, nil
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}
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// ConvertImport converts a CUE import statement, represented in its AST form,
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// to the corresponding TS import, if the CUE import is allowed.
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//
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// Some CUE imports are allowed but have no corresponding TS import - the CUE
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// types from that package are expected to be inlined.
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func ConvertImport(im *ast.ImportSpec) (tsast.ImportSpec, error) {
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tsim := tsast.ImportSpec{}
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pkg, err := MapCUEImportToTS(strings.Trim(im.Path.Value, "\""))
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if err != nil || pkg == "" {
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// err should be unreachable if paths has been verified already
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// Empty string mapping means skip it
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return tsim, err
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}
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tsim.From = tsast.Str{Value: pkg}
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if im.Name != nil && im.Name.String() != "" {
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tsim.AsName = im.Name.String()
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} else {
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sl := strings.Split(strings.Trim(im.Path.Value, "\""), "/")
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final := sl[len(sl)-1]
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if idx := strings.Index(final, ":"); idx != -1 {
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tsim.AsName = final[idx:]
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} else {
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tsim.AsName = final
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}
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}
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return tsim, nil
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}
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