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funcs.go
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funcs.go
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package tpl
import (
"crypto/md5"
"crypto/sha1"
"fmt"
"text/template"
)
// These constants defined the template function names used
const (
FuncMd5sum = "md5sum"
FuncSha1sum = "sha1sum"
FuncGet = "get"
)
func md5sum() func(...string) (string, error) {
return func(s ...string) (string, error) {
return fmt.Sprintf("%x", md5.Sum([]byte(s[0]))), nil
}
}
func sha1sum() func(...string) (string, error) {
return func(s ...string) (string, error) {
return fmt.Sprintf("%x", sha1.Sum([]byte(s[0]))), nil
}
}
func get(kv kvstore) func(...string) (string, error) {
return func(s ...string) (string, error) {
if len(s) < 1 {
return "", nil
}
if kv == nil {
return "", fmt.Errorf("KV is nil")
}
buf, err := kv.Get(s[0])
if err != nil {
return err.Error(), nil
}
return string(buf), nil
}
}
func funcMap(kv kvstore) template.FuncMap {
return template.FuncMap{
FuncGet: get(kv),
FuncMd5sum: md5sum(),
FuncSha1sum: sha1sum(),
}
}