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packagejson.go
43 lines (34 loc) · 1.14 KB
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packagejson.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package nodejs
import (
"context"
"encoding/json"
"io/fs"
"path/filepath"
"namespacelabs.dev/foundation/internal/fnerrors"
"namespacelabs.dev/foundation/internal/parsing"
"namespacelabs.dev/foundation/std/pkggraph"
)
const (
packageJsonFn = "package.json"
)
type packageJson struct {
Scripts map[string]string `json:"scripts"`
}
func readPackageJson(ctx context.Context, pl parsing.EarlyPackageLoader, loc pkggraph.Location, relPath string) (*packageJson, error) {
fsys, err := pl.WorkspaceOf(ctx, loc.Module)
if err != nil {
return nil, err
}
jsonRaw, err := fs.ReadFile(fsys, filepath.Join(relPath, packageJsonFn))
if err != nil {
return nil, fnerrors.NewWithLocation(loc, "error while reading %s : %s", packageJsonFn, err)
}
parsedJson := &packageJson{}
if err := json.Unmarshal(jsonRaw, &parsedJson); err != nil {
return nil, fnerrors.NewWithLocation(loc, "error while parsing %s : %s", packageJsonFn, err)
}
return parsedJson, nil
}