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Remove months as a possible time interval unit as it is too volatile.

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Thanks to @erdgeist for pointing that out.

refs #2
This commit is contained in:
Christian Schwarz 2017-07-09 00:38:16 +02:00
parent 5afbedbd87
commit d1999fc17c
3 changed files with 49 additions and 31 deletions
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70
cmd/config.go
View File

@ -345,7 +345,7 @@ func parseRepeatStrategy(r map[string]string) (s jobrun.RepeatStrategy, err erro
}
if repeatStr, ok := r["interval"]; ok {
d, err := time.ParseDuration(repeatStr)
d, err := parseDuration(repeatStr)
if err != nil {
return nil, err
}
@ -563,7 +563,43 @@ func parsePrune(e map[string]interface{}, name string) (prune *Prune, err error)
return
}
var retentionStringIntervalRegex *regexp.Regexp = regexp.MustCompile(`^\s*(\d+)\s*x\s*(\d+)\s*(s|min|h|d|w|mon)\s*\s*(\((.*)\))?\s*$`)
var durationStringRegex *regexp.Regexp = regexp.MustCompile(`^\s*(\d+)\s*(s|m|h|d|w)\s*$`)
func parseDuration(e string) (d time.Duration, err error) {
comps := durationStringRegex.FindStringSubmatch(e)
if len(comps) != 3 {
err = fmt.Errorf("does not match regex: %s %#v", e, comps)
return
}
durationFactor, err := strconv.ParseInt(comps[1], 10, 64)
if err != nil {
return
}
var durationUnit time.Duration
switch comps[2] {
case "s":
durationUnit = time.Second
case "m":
durationUnit = time.Minute
case "h":
durationUnit = time.Hour
case "d":
durationUnit = 24 * time.Hour
case "w":
durationUnit = 24 * 7 * time.Hour
default:
err = fmt.Errorf("contains unknown time unit '%s'", comps[2])
return
}
d = time.Duration(durationFactor) * durationUnit
return
}
var retentionStringIntervalRegex *regexp.Regexp = regexp.MustCompile(`^\s*(\d+)\s*x\s*([^\(]+)\s*(\((.*)\))?\s*$`)
func parseRetentionGridIntervalString(e string) (intervals []RetentionInterval, err error) {
@ -580,38 +616,20 @@ func parseRetentionGridIntervalString(e string) (intervals []RetentionInterval,
return nil, fmt.Errorf("contains factor <= 0")
}
durationFactor, err := strconv.ParseInt(comps[2], 10, 64)
duration, err := parseDuration(comps[2])
if err != nil {
return nil, err
}
var durationUnit time.Duration
switch comps[3] {
case "s":
durationUnit = time.Second
case "min":
durationUnit = time.Minute
case "h":
durationUnit = time.Hour
case "d":
durationUnit = 24 * time.Hour
case "w":
durationUnit = 24 * 7 * time.Hour
case "mon":
durationUnit = 24 * 32 * time.Hour
default:
err = fmt.Errorf("contains unknown time unit '%s'", comps[3])
return nil, err
}
keepCount := 1
if comps[4] != "" {
if comps[3] != "" {
// Decompose key=value, comma separated
// For now, only keep_count is supported
re := regexp.MustCompile(`^\s*keep=(.+)\s*$`)
res := re.FindStringSubmatch(comps[5])
res := re.FindStringSubmatch(comps[4])
if res == nil || len(res) != 2 {
err = fmt.Errorf("interval parameter contains unknown parameters")
return
}
if res[1] == "all" {
keepCount = RetentionGridKeepCountAll
@ -627,7 +645,7 @@ func parseRetentionGridIntervalString(e string) (intervals []RetentionInterval,
intervals = make([]RetentionInterval, times)
for i := range intervals {
intervals[i] = RetentionInterval{
Length: time.Duration(durationFactor) * durationUnit, // TODO is this conversion fututre-proof?
Length: duration,
KeepCount: keepCount,
}
}
@ -718,7 +736,7 @@ func parseAutosnap(m interface{}, name string) (a *Autosnap, err error) {
a.Prefix = i.Prefix
var interval time.Duration
if interval, err = time.ParseDuration(i.Interval); err != nil {
if interval, err = parseDuration(i.Interval); err != nil {
err = fmt.Errorf("cannot parse interval: %s", err)
return
}

6
cmd/config_test.go
View File

@ -14,7 +14,7 @@ func TestSampleConfigFileIsParsedWithoutErrors(t *testing.T) {
func TestParseRetentionGridStringParsing(t *testing.T) {
intervals, err := parseRetentionGridIntervalsString("2x10min(keep=2) | 1x1h | 3x1w")
intervals, err := parseRetentionGridIntervalsString("2x10m(keep=2) | 1x1h | 3x1w")
assert.Nil(t, err)
assert.Len(t, intervals, 6)
@ -36,10 +36,10 @@ func TestParseRetentionGridStringParsing(t *testing.T) {
intervals, err = parseRetentionGridIntervalsString("|")
assert.Error(t, err)
intervals, err = parseRetentionGridIntervalsString("2x10min")
intervals, err = parseRetentionGridIntervalsString("2x10m")
assert.NoError(t, err)
intervals, err = parseRetentionGridIntervalsString("1x10min(keep=all)")
intervals, err = parseRetentionGridIntervalsString("1x10m(keep=all)")
assert.NoError(t, err)
assert.Len(t, intervals, 1)
assert.EqualValues(t, util.RetentionGridKeepCountAll, intervals[0].KeepCount)

4
cmd/sampleconf/zrepl.yml
View File

@ -96,7 +96,7 @@ prune:
clean_backups:
policy: grid
grid: 6x10min | 24x1h | 7x1d | 32 x 1d | 4 x 3mon
grid: 6x10m | 24x1h | 7x1d | 5 x 1w | 4 x 5w
dataset_filter: {
"tank/backups/*": ok
}
@ -106,7 +106,7 @@ prune:
hfbak_prune: # cleans up after hfbak autosnap job
policy: grid
grid: 1x1min(keep=all)
grid: 1x1m(keep=all)
dataset_filter: {
"pool1*": ok
}