44 lines
933 B
Go
44 lines
933 B
Go
package common
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import (
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"bytes"
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"text/template"
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packertpl "github.com/hashicorp/packer/common/template"
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)
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func isValidByteValue(b byte) bool {
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if '0' <= b && b <= '9' {
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return true
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}
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if 'a' <= b && b <= 'z' {
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return true
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}
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if 'A' <= b && b <= 'Z' {
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return true
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}
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return b == '.' || b == '_' || b == '-'
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}
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// Clean up image name by replacing invalid characters with "-"
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// Names are not allowed to end in '.', '-', or '_' and are trimmed.
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func templateCleanImageName(s string) string {
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b := []byte(s)
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newb := make([]byte, len(b))
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for i := range newb {
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if isValidByteValue(b[i]) {
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newb[i] = b[i]
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} else {
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newb[i] = '-'
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}
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}
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newb = bytes.TrimRight(newb, "-_.")
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return string(newb)
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}
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var TemplateFuncs = template.FuncMap{
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"clean_resource_name": templateCleanImageName,
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"clean_image_name": packertpl.DeprecatedTemplateFunc("clean_image_name", "clean_resource_name", templateCleanImageName),
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}
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