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80 lines
1.8 KiB
Go
80 lines
1.8 KiB
Go
package util
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import (
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"bytes"
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goformat "go/format"
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"io/ioutil"
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"text/template"
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"github.com/zeromicro/go-zero/tools/goctl/internal/errorx"
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"github.com/zeromicro/go-zero/tools/goctl/util/pathx"
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)
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const regularPerm = 0o666
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// DefaultTemplate is a tool to provides the text/template operations
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type DefaultTemplate struct {
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name string
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text string
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goFmt bool
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}
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// With returns an instance of DefaultTemplate
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func With(name string) *DefaultTemplate {
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return &DefaultTemplate{
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name: name,
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}
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}
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// Parse accepts a source template and returns DefaultTemplate
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func (t *DefaultTemplate) Parse(text string) *DefaultTemplate {
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t.text = text
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return t
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}
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// GoFmt sets the value to goFmt and marks the generated codes will be formatted or not
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func (t *DefaultTemplate) GoFmt(format bool) *DefaultTemplate {
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t.goFmt = format
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return t
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}
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// SaveTo writes the codes to the target path
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func (t *DefaultTemplate) SaveTo(data interface{}, path string, forceUpdate bool) error {
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if pathx.FileExists(path) && !forceUpdate {
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return nil
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}
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output, err := t.Execute(data)
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if err != nil {
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return err
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}
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return ioutil.WriteFile(path, output.Bytes(), regularPerm)
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}
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// Execute returns the codes after the template executed
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func (t *DefaultTemplate) Execute(data interface{}) (*bytes.Buffer, error) {
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tem, err := template.New(t.name).Parse(t.text)
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if err != nil {
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return nil, errorx.Wrap(err, "template parse error:", t.text)
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}
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buf := new(bytes.Buffer)
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if err = tem.Execute(buf, data); err != nil {
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return nil, errorx.Wrap(err, "template execute error:", t.text)
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}
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if !t.goFmt {
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return buf, nil
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}
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formatOutput, err := goformat.Source(buf.Bytes())
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if err != nil {
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return nil, errorx.Wrap(err, "go format error:", buf.String())
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}
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buf.Reset()
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buf.Write(formatOutput)
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return buf, nil
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}
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