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report.go
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report.go
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package lib
import (
"strconv"
"strings"
)
// Diffs compute a report with the differences between two configurations
func Diffs(crt *NetConfig, prev *NetConfig) string {
sb := strings.Builder{}
if crt.Hostname != prev.Hostname {
sb.WriteString("Hostname changed: ")
sb.WriteString(prev.Hostname)
sb.WriteString(" -> ")
sb.WriteString(crt.Hostname)
sb.WriteString("\n")
}
if crt.IPCount() != prev.IPCount() {
sb.WriteString("IP count changed: ")
sb.WriteString(strconv.Itoa(prev.IPCount()))
sb.WriteString(" -> ")
sb.WriteString(strconv.Itoa(crt.IPCount()))
sb.WriteString("\n")
}
for _, ip := range crt.IPs {
if !Contains(prev.IPs, ip) {
sb.WriteString("New IP: ")
sb.WriteString(ip)
sb.WriteString("\n")
}
}
return sb.String()
}
// Report builds the summary for network configuration changes
func Report(crt *NetConfig, prev *NetConfig) string {
sb := strings.Builder{}
if prev != nil {
sb.WriteString("Changes summary:\n")
sb.WriteString(Diffs(crt, prev))
sb.WriteString("\n")
}
sb.WriteString("Current configuration:\n")
sb.WriteString(crt.String())
return sb.String()
}