52 lines
902 B
Go
52 lines
902 B
Go
package raft
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import (
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"os/exec"
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"strings"
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)
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func diffu(a, b string) string {
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if a == b {
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return ""
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}
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aname, bname := mustTemp("base", a), mustTemp("other", b)
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defer os.Remove(aname)
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defer os.Remove(bname)
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cmd := exec.Command("diff", "-u", aname, bname)
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buf, err := cmd.CombinedOutput()
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if err != nil {
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if _, ok := err.(*exec.ExitError); ok {
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// do nothing
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return string(buf)
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}
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panic(err)
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}
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return string(buf)
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}
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func mustTemp(pre, body string) string {
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f, err := ioutil.TempFile("", pre)
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if err != nil {
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panic(err)
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}
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_, err = io.Copy(f, strings.NewReader(body))
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if err != nil {
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panic(err)
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}
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f.Close()
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return f.Name()
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}
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func ltoa(l *raftLog) string {
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s := fmt.Sprintf("committed: %d\n", l.committed)
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s += fmt.Sprintf("applied: %d\n", l.applied)
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for i, e := range l.ents {
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s += fmt.Sprintf("#%d: %+v\n", i, e)
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}
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return s
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}
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