63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
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//go:build mage
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// +build mage
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package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"text/template"
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)
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func render(cfg config, component string) error {
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buildDirName := filepath.Join(rootBuildDir, component)
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if err := os.MkdirAll(buildDirName, 0o750); err != nil {
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return fmt.Errorf("unable to make %s; %w", buildDirName, err)
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}
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templateDirName := filepath.Join(rootTemplatesDir, component)
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files, err := os.ReadDir(templateDirName)
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if err != nil {
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return fmt.Errorf("unable to read files from %s; %w ", templateDirName, err)
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}
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for _, f := range files {
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err := func() error {
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templateFilename := f.Name()
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if f.IsDir() || !strings.HasSuffix(templateFilename, templateExtension) {
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return nil
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}
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outputFilename := strings.TrimSuffix(templateFilename, templateExtension)
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outputPath := filepath.Join(buildDirName, outputFilename)
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file, err := os.Create(outputPath)
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if err != nil {
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return fmt.Errorf("unable to create the file '%s'; %w", outputPath, err)
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}
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defer file.Close()
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templatePath := filepath.Join(templateDirName, templateFilename)
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tmpl, err := template.New(templateFilename).ParseFiles(templatePath)
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if err != nil {
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return fmt.Errorf("unable to create a new template value from '%s'; %w", templateFilename, err)
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}
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if err = tmpl.Execute(file, cfg); err != nil {
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return fmt.Errorf("unable to render the template to '%s'; %w", outputPath, err)
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}
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return nil
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}()
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if err != nil {
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return fmt.Errorf("an error occurred whilst rendering the templates for '%s'; %w", component, err)
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}
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}
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return nil
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}
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