升级流程引擎配置文件版本

vendor/github.com/360EntSecGroup-Skylar/excelize/file.go

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+// Copyright 2016 - 2019 The excelize Authors. All rights reserved. Use of
+// this source code is governed by a BSD-style license that can be found in
+// the LICENSE file.
+//
+// Package excelize providing a set of functions that allow you to write to
+// and read from XLSX files. Support reads and writes XLSX file generated by
+// Microsoft Excel™ 2007 and later. Support save file without losing original
+// charts of XLSX. This library needs Go version 1.8 or later.
+
+package excelize
+
+import (
+	"archive/zip"
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+)
+
+// NewFile provides a function to create new file by default template. For
+// example:
+//
+//    xlsx := NewFile()
+//
+func NewFile() *File {
+	file := make(map[string][]byte)
+	file["_rels/.rels"] = []byte(XMLHeader + templateRels)
+	file["docProps/app.xml"] = []byte(XMLHeader + templateDocpropsApp)
+	file["docProps/core.xml"] = []byte(XMLHeader + templateDocpropsCore)
+	file["xl/_rels/workbook.xml.rels"] = []byte(XMLHeader + templateWorkbookRels)
+	file["xl/theme/theme1.xml"] = []byte(XMLHeader + templateTheme)
+	file["xl/worksheets/sheet1.xml"] = []byte(XMLHeader + templateSheet)
+	file["xl/styles.xml"] = []byte(XMLHeader + templateStyles)
+	file["xl/workbook.xml"] = []byte(XMLHeader + templateWorkbook)
+	file["[Content_Types].xml"] = []byte(XMLHeader + templateContentTypes)
+	f := &File{
+		sheetMap:   make(map[string]string),
+		Sheet:      make(map[string]*xlsxWorksheet),
+		SheetCount: 1,
+		XLSX:       file,
+	}
+	f.ContentTypes = f.contentTypesReader()
+	f.Styles = f.stylesReader()
+	f.WorkBook = f.workbookReader()
+	f.WorkBookRels = f.workbookRelsReader()
+	f.Sheet["xl/worksheets/sheet1.xml"] = f.workSheetReader("Sheet1")
+	f.sheetMap["Sheet1"] = "xl/worksheets/sheet1.xml"
+	f.Theme = f.themeReader()
+	return f
+}
+
+// Save provides a function to override the xlsx file with origin path.
+func (f *File) Save() error {
+	if f.Path == "" {
+		return fmt.Errorf("no path defined for file, consider File.WriteTo or File.Write")
+	}
+	return f.SaveAs(f.Path)
+}
+
+// SaveAs provides a function to create or update to an xlsx file at the
+// provided path.
+func (f *File) SaveAs(name string) error {
+	file, err := os.OpenFile(name, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0666)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+	return f.Write(file)
+}
+
+// Write provides a function to write to an io.Writer.
+func (f *File) Write(w io.Writer) error {
+	_, err := f.WriteTo(w)
+	return err
+}
+
+// WriteTo implements io.WriterTo to write the file.
+func (f *File) WriteTo(w io.Writer) (int64, error) {
+	buf, err := f.WriteToBuffer()
+	if err != nil {
+		return 0, err
+	}
+	return buf.WriteTo(w)
+}
+
+// WriteToBuffer provides a function to get bytes.Buffer from the saved file.
+func (f *File) WriteToBuffer() (*bytes.Buffer, error) {
+	buf := new(bytes.Buffer)
+	zw := zip.NewWriter(buf)
+	f.contentTypesWriter()
+	f.workbookWriter()
+	f.workbookRelsWriter()
+	f.worksheetWriter()
+	f.styleSheetWriter()
+	for path, content := range f.XLSX {
+		fi, err := zw.Create(path)
+		if err != nil {
+			return buf, err
+		}
+		_, err = fi.Write(content)
+		if err != nil {
+			return buf, err
+		}
+	}
+	return buf, zw.Close()
+}