70 lines
2.1 KiB
Go
70 lines
2.1 KiB
Go
package app
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import (
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"bytes"
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"fmt"
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"strings"
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"github.com/helmfile/helmfile/pkg/environment"
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"github.com/helmfile/helmfile/pkg/state"
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"github.com/helmfile/helmfile/pkg/tmpl"
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)
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func prependLineNumbers(text string) string {
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buf := bytes.NewBufferString("")
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lines := strings.Split(text, "\n")
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for i, line := range lines {
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buf.WriteString(fmt.Sprintf("%2d: %s\n", i, line))
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}
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return buf.String()
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}
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type RenderOpts struct {
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}
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func (r *desiredStateLoader) renderTemplatesToYaml(baseDir, filename string, content []byte) (*bytes.Buffer, error) {
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env := &environment.Environment{Name: r.env, Values: map[string]any(nil)}
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return r.renderTemplatesToYamlWithEnv(baseDir, filename, content, env, nil)
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}
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func (r *desiredStateLoader) renderTemplatesToYamlWithEnv(baseDir, filename string, content []byte, inherited, overrode *environment.Environment) (*bytes.Buffer, error) {
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return r.twoPassRenderTemplateToYaml(inherited, overrode, baseDir, filename, content)
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}
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func (r *desiredStateLoader) twoPassRenderTemplateToYaml(inherited, overrode *environment.Environment, baseDir, filename string, content []byte) (*bytes.Buffer, error) {
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var phase string
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r.logger.Debugf("%srendering starting for \"%s\": inherited=%v, overrode=%v", phase, filename, inherited, overrode)
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initEnv, err := inherited.Merge(nil)
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if err != nil {
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return nil, err
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}
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var (
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renderingPhase string
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finalEnv *environment.Environment
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vals map[string]any
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)
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finalEnv, err = initEnv.Merge(overrode)
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if err != nil {
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return nil, err
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}
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vals, err = finalEnv.GetMergedValues()
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if err != nil {
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return nil, err
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}
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tmplData := state.NewEnvironmentTemplateData(*finalEnv, r.namespace, vals)
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renderer := tmpl.NewFileRenderer(r.fs, baseDir, tmplData)
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yamlBuf, err := renderer.RenderTemplateContentToBuffer(content)
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if err != nil {
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r.logger.Debugf("%srendering failed, input of \"%s\":\n%s", renderingPhase, filename, prependLineNumbers(string(content)))
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return nil, err
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}
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r.logger.Debugf("%srendering result of \"%s\":\n%s", renderingPhase, filename, prependLineNumbers(yamlBuf.String()))
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return yamlBuf, nil
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}
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