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util.go
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/
util.go
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package server
import (
"fmt"
"html/template"
"io"
"path/filepath"
"strings"
)
func serveTemplate(name string, tmpl string, w io.Writer, data interface{}) {
t, err := template.New(name).Parse(tmpl)
if err != nil {
panic(err)
}
if err := t.Execute(w, data); err != nil {
panic(err)
}
}
// getFileName generates a file name based on the existing files in the directory
// if name isn't taken leave it unchanged
// else change name to format "name(number).ext"
func getFileName(newFilename string, fileNamesInTargetDir []string) string {
fileExt := filepath.Ext(newFilename)
fileName := strings.TrimSuffix(newFilename, fileExt)
number := 1
i := 0
for i < len(fileNamesInTargetDir) {
if newFilename == fileNamesInTargetDir[i] {
newFilename = fmt.Sprintf("%s(%v)%s", fileName, number, fileExt)
number++
i = 0
}
i++
}
return newFilename
}