mirror of https://github.com/gogits/gogs.git
Unknwon
9 years ago
13 changed files with 47 additions and 1401 deletions
@ -1,59 +0,0 @@
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// Copyright 2014 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package cron |
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import ( |
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"time" |
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"github.com/gogits/gogs/models" |
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"github.com/gogits/gogs/modules/cron" |
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"github.com/gogits/gogs/modules/log" |
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"github.com/gogits/gogs/modules/setting" |
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) |
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var c = cron.New() |
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func NewContext() { |
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var ( |
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entry *cron.Entry |
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err error |
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) |
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if setting.Cron.UpdateMirror.Enabled { |
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entry, err = c.AddFunc("Update mirrors", setting.Cron.UpdateMirror.Schedule, models.MirrorUpdate) |
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if err != nil { |
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log.Fatal(4, "Cron[Update mirrors]: %v", err) |
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} |
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if setting.Cron.UpdateMirror.RunAtStart { |
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entry.Prev = time.Now() |
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go models.MirrorUpdate() |
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} |
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} |
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if setting.Cron.RepoHealthCheck.Enabled { |
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entry, err = c.AddFunc("Repository health check", setting.Cron.RepoHealthCheck.Schedule, models.GitFsck) |
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if err != nil { |
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log.Fatal(4, "Cron[Repository health check]: %v", err) |
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} |
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if setting.Cron.RepoHealthCheck.RunAtStart { |
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entry.Prev = time.Now() |
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go models.GitFsck() |
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} |
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} |
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if setting.Cron.CheckRepoStats.Enabled { |
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entry, err = c.AddFunc("Check repository statistics", setting.Cron.CheckRepoStats.Schedule, models.CheckRepoStats) |
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if err != nil { |
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log.Fatal(4, "Cron[Check repository statistics]: %v", err) |
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} |
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if setting.Cron.CheckRepoStats.RunAtStart { |
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entry.Prev = time.Now() |
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go models.CheckRepoStats() |
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} |
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} |
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c.Start() |
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} |
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// ListTasks returns all running cron tasks.
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func ListTasks() []*cron.Entry { |
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return c.Entries() |
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} |
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@ -1,27 +0,0 @@
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package cron |
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import "time" |
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// ConstantDelaySchedule represents a simple recurring duty cycle, e.g. "Every 5 minutes".
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// It does not support jobs more frequent than once a second.
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type ConstantDelaySchedule struct { |
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Delay time.Duration |
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} |
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// Every returns a crontab Schedule that activates once every duration.
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// Delays of less than a second are not supported (will round up to 1 second).
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// Any fields less than a Second are truncated.
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func Every(duration time.Duration) ConstantDelaySchedule { |
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if duration < time.Second { |
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duration = time.Second |
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} |
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return ConstantDelaySchedule{ |
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Delay: duration - time.Duration(duration.Nanoseconds())%time.Second, |
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} |
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} |
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// Next returns the next time this should be run.
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// This rounds so that the next activation time will be on the second.
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func (schedule ConstantDelaySchedule) Next(t time.Time) time.Time { |
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return t.Add(schedule.Delay - time.Duration(t.Nanosecond())*time.Nanosecond) |
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} |
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@ -1,54 +0,0 @@
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package cron |
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import ( |
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"testing" |
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"time" |
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) |
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func TestConstantDelayNext(t *testing.T) { |
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tests := []struct { |
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time string |
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delay time.Duration |
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expected string |
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}{ |
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// Simple cases
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{"Mon Jul 9 14:45 2012", 15*time.Minute + 50*time.Nanosecond, "Mon Jul 9 15:00 2012"}, |
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{"Mon Jul 9 14:59 2012", 15 * time.Minute, "Mon Jul 9 15:14 2012"}, |
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{"Mon Jul 9 14:59:59 2012", 15 * time.Minute, "Mon Jul 9 15:14:59 2012"}, |
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// Wrap around hours
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{"Mon Jul 9 15:45 2012", 35 * time.Minute, "Mon Jul 9 16:20 2012"}, |
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// Wrap around days
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{"Mon Jul 9 23:46 2012", 14 * time.Minute, "Tue Jul 10 00:00 2012"}, |
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{"Mon Jul 9 23:45 2012", 35 * time.Minute, "Tue Jul 10 00:20 2012"}, |
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{"Mon Jul 9 23:35:51 2012", 44*time.Minute + 24*time.Second, "Tue Jul 10 00:20:15 2012"}, |
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{"Mon Jul 9 23:35:51 2012", 25*time.Hour + 44*time.Minute + 24*time.Second, "Thu Jul 11 01:20:15 2012"}, |
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// Wrap around months
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{"Mon Jul 9 23:35 2012", 91*24*time.Hour + 25*time.Minute, "Thu Oct 9 00:00 2012"}, |
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// Wrap around minute, hour, day, month, and year
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{"Mon Dec 31 23:59:45 2012", 15 * time.Second, "Tue Jan 1 00:00:00 2013"}, |
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// Round to nearest second on the delay
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{"Mon Jul 9 14:45 2012", 15*time.Minute + 50*time.Nanosecond, "Mon Jul 9 15:00 2012"}, |
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// Round up to 1 second if the duration is less.
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{"Mon Jul 9 14:45:00 2012", 15 * time.Millisecond, "Mon Jul 9 14:45:01 2012"}, |
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// Round to nearest second when calculating the next time.
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{"Mon Jul 9 14:45:00.005 2012", 15 * time.Minute, "Mon Jul 9 15:00 2012"}, |
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// Round to nearest second for both.
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{"Mon Jul 9 14:45:00.005 2012", 15*time.Minute + 50*time.Nanosecond, "Mon Jul 9 15:00 2012"}, |
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} |
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for _, c := range tests { |
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actual := Every(c.delay).Next(getTime(c.time)) |
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expected := getTime(c.expected) |
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if actual != expected { |
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t.Errorf("%s, \"%s\": (expected) %v != %v (actual)", c.time, c.delay, expected, actual) |
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} |
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} |
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} |
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@ -1,255 +0,0 @@
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package cron |
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import ( |
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"fmt" |
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"sync" |
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"testing" |
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"time" |
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) |
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// Many tests schedule a job for every second, and then wait at most a second
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// for it to run. This amount is just slightly larger than 1 second to
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// compensate for a few milliseconds of runtime.
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const ONE_SECOND = 1*time.Second + 10*time.Millisecond |
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// Start and stop cron with no entries.
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func TestNoEntries(t *testing.T) { |
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cron := New() |
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cron.Start() |
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select { |
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case <-time.After(ONE_SECOND): |
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t.FailNow() |
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case <-stop(cron): |
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} |
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} |
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// Start, stop, then add an entry. Verify entry doesn't run.
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func TestStopCausesJobsToNotRun(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(1) |
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cron := New() |
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cron.Start() |
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cron.Stop() |
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cron.AddFunc("", "* * * * * ?", func() { wg.Done() }) |
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select { |
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case <-time.After(ONE_SECOND): |
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// No job ran!
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case <-wait(wg): |
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t.FailNow() |
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} |
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} |
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// Add a job, start cron, expect it runs.
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func TestAddBeforeRunning(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(1) |
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cron := New() |
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cron.AddFunc("", "* * * * * ?", func() { wg.Done() }) |
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cron.Start() |
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defer cron.Stop() |
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// Give cron 2 seconds to run our job (which is always activated).
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select { |
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case <-time.After(ONE_SECOND): |
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t.FailNow() |
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case <-wait(wg): |
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} |
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} |
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// Start cron, add a job, expect it runs.
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func TestAddWhileRunning(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(1) |
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cron := New() |
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cron.Start() |
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defer cron.Stop() |
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cron.AddFunc("", "* * * * * ?", func() { wg.Done() }) |
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select { |
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case <-time.After(ONE_SECOND): |
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t.FailNow() |
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case <-wait(wg): |
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} |
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} |
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// Test timing with Entries.
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func TestSnapshotEntries(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(1) |
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cron := New() |
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cron.AddFunc("", "@every 2s", func() { wg.Done() }) |
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cron.Start() |
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defer cron.Stop() |
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// Cron should fire in 2 seconds. After 1 second, call Entries.
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select { |
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case <-time.After(ONE_SECOND): |
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cron.Entries() |
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} |
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// Even though Entries was called, the cron should fire at the 2 second mark.
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select { |
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case <-time.After(ONE_SECOND): |
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t.FailNow() |
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case <-wait(wg): |
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} |
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} |
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// Test that the entries are correctly sorted.
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// Add a bunch of long-in-the-future entries, and an immediate entry, and ensure
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// that the immediate entry runs immediately.
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// Also: Test that multiple jobs run in the same instant.
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func TestMultipleEntries(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(2) |
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cron := New() |
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cron.AddFunc("", "0 0 0 1 1 ?", func() {}) |
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cron.AddFunc("", "* * * * * ?", func() { wg.Done() }) |
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cron.AddFunc("", "0 0 0 31 12 ?", func() {}) |
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cron.AddFunc("", "* * * * * ?", func() { wg.Done() }) |
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cron.Start() |
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defer cron.Stop() |
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select { |
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case <-time.After(ONE_SECOND): |
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t.FailNow() |
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case <-wait(wg): |
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} |
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} |
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// Test running the same job twice.
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func TestRunningJobTwice(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(2) |
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cron := New() |
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cron.AddFunc("", "0 0 0 1 1 ?", func() {}) |
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cron.AddFunc("", "0 0 0 31 12 ?", func() {}) |
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cron.AddFunc("", "* * * * * ?", func() { wg.Done() }) |
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cron.Start() |
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defer cron.Stop() |
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select { |
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case <-time.After(2 * ONE_SECOND): |
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t.FailNow() |
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case <-wait(wg): |
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} |
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} |
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func TestRunningMultipleSchedules(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(2) |
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cron := New() |
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cron.AddFunc("", "0 0 0 1 1 ?", func() {}) |
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cron.AddFunc("", "0 0 0 31 12 ?", func() {}) |
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cron.AddFunc("", "* * * * * ?", func() { wg.Done() }) |
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cron.Schedule("", "", Every(time.Minute), FuncJob(func() {})) |
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cron.Schedule("", "", Every(time.Second), FuncJob(func() { wg.Done() })) |
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cron.Schedule("", "", Every(time.Hour), FuncJob(func() {})) |
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cron.Start() |
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defer cron.Stop() |
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select { |
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case <-time.After(2 * ONE_SECOND): |
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t.FailNow() |
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case <-wait(wg): |
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} |
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} |
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// Test that the cron is run in the local time zone (as opposed to UTC).
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func TestLocalTimezone(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(1) |
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now := time.Now().Local() |
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spec := fmt.Sprintf("%d %d %d %d %d ?", |
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now.Second()+1, now.Minute(), now.Hour(), now.Day(), now.Month()) |
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cron := New() |
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cron.AddFunc("", spec, func() { wg.Done() }) |
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cron.Start() |
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defer cron.Stop() |
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select { |
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case <-time.After(ONE_SECOND): |
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t.FailNow() |
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case <-wait(wg): |
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} |
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} |
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type testJob struct { |
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wg *sync.WaitGroup |
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name string |
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} |
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func (t testJob) Run() { |
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t.wg.Done() |
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} |
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// Simple test using Runnables.
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func TestJob(t *testing.T) { |
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wg := &sync.WaitGroup{} |
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wg.Add(1) |
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cron := New() |
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cron.AddJob("", "0 0 0 30 Feb ?", testJob{wg, "job0"}) |
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cron.AddJob("", "0 0 0 1 1 ?", testJob{wg, "job1"}) |
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cron.AddJob("", "* * * * * ?", testJob{wg, "job2"}) |
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cron.AddJob("", "1 0 0 1 1 ?", testJob{wg, "job3"}) |
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cron.Schedule("", "", Every(5*time.Second+5*time.Nanosecond), testJob{wg, "job4"}) |
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cron.Schedule("", "", Every(5*time.Minute), testJob{wg, "job5"}) |
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cron.Start() |
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defer cron.Stop() |
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select { |
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case <-time.After(ONE_SECOND): |
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t.FailNow() |
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case <-wait(wg): |
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} |
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// Ensure the entries are in the right order.
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expecteds := []string{"job2", "job4", "job5", "job1", "job3", "job0"} |
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var actuals []string |
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for _, entry := range cron.Entries() { |
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actuals = append(actuals, entry.Job.(testJob).name) |
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} |
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for i, expected := range expecteds { |
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if actuals[i] != expected { |
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t.Errorf("Jobs not in the right order. (expected) %s != %s (actual)", expecteds, actuals) |
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t.FailNow() |
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} |
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} |
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} |
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func wait(wg *sync.WaitGroup) chan bool { |
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ch := make(chan bool) |
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go func() { |
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wg.Wait() |
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ch <- true |
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}() |
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return ch |
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} |
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func stop(cron *Cron) chan bool { |
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ch := make(chan bool) |
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go func() { |
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cron.Stop() |
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ch <- true |
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}() |
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return ch |
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} |
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@ -1,129 +0,0 @@
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/* |
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Package cron implements a cron spec parser and job runner. |
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Usage |
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Callers may register Funcs to be invoked on a given schedule. Cron will run |
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them in their own goroutines. |
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c := cron.New() |
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c.AddFunc("Every hour on the half hour","0 30 * * * *", func() { fmt.Println("Every hour on the half hour") }) |
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c.AddFunc("Every hour","@hourly", func() { fmt.Println("Every hour") }) |
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c.AddFunc("Every hour and a half","@every 1h30m", func() { fmt.Println("Every hour thirty") }) |
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c.Start() |
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.. |
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// Funcs are invoked in their own goroutine, asynchronously.
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... |
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// Funcs may also be added to a running Cron
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c.AddFunc("@daily", func() { fmt.Println("Every day") }) |
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.. |
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// Inspect the cron job entries' next and previous run times.
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inspect(c.Entries()) |
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.. |
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c.Stop() // Stop the scheduler (does not stop any jobs already running).
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|
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CRON Expression Format |
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A cron expression represents a set of times, using 6 space-separated fields. |
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Field name | Mandatory? | Allowed values | Allowed special characters |
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---------- | ---------- | -------------- | -------------------------- |
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Seconds | Yes | 0-59 | * / , - |
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Minutes | Yes | 0-59 | * / , - |
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Hours | Yes | 0-23 | * / , - |
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Day of month | Yes | 1-31 | * / , - ? |
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Month | Yes | 1-12 or JAN-DEC | * / , - |
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Day of week | Yes | 0-6 or SUN-SAT | * / , - ? |
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|
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Note: Month and Day-of-week field values are case insensitive. "SUN", "Sun", |
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and "sun" are equally accepted. |
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|
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Special Characters |
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|
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Asterisk ( * ) |
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|
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The asterisk indicates that the cron expression will match for all values of the |
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field; e.g., using an asterisk in the 5th field (month) would indicate every |
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month. |
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|
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Slash ( / ) |
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|
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Slashes are used to describe increments of ranges. For example 3-59/15 in the |
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1st field (minutes) would indicate the 3rd minute of the hour and every 15 |
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minutes thereafter. The form "*\/..." is equivalent to the form "first-last/...", |
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that is, an increment over the largest possible range of the field. The form |
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"N/..." is accepted as meaning "N-MAX/...", that is, starting at N, use the |
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increment until the end of that specific range. It does not wrap around. |
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|
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Comma ( , ) |
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|
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Commas are used to separate items of a list. For example, using "MON,WED,FRI" in |
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the 5th field (day of week) would mean Mondays, Wednesdays and Fridays. |
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|
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Hyphen ( - ) |
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|
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Hyphens are used to define ranges. For example, 9-17 would indicate every |
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hour between 9am and 5pm inclusive. |
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|
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Question mark ( ? ) |
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|
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Question mark may be used instead of '*' for leaving either day-of-month or |
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day-of-week blank. |
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|
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Predefined schedules |
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|
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You may use one of several pre-defined schedules in place of a cron expression. |
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|
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Entry | Description | Equivalent To |
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----- | ----------- | ------------- |
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@yearly (or @annually) | Run once a year, midnight, Jan. 1st | 0 0 0 1 1 * |
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@monthly | Run once a month, midnight, first of month | 0 0 0 1 * * |
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@weekly | Run once a week, midnight on Sunday | 0 0 0 * * 0 |
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@daily (or @midnight) | Run once a day, midnight | 0 0 0 * * * |
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@hourly | Run once an hour, beginning of hour | 0 0 * * * * |
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|
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Intervals |
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|
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You may also schedule a job to execute at fixed intervals. This is supported by |
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formatting the cron spec like this: |
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|
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@every <duration> |
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|
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where "duration" is a string accepted by time.ParseDuration |
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(http://golang.org/pkg/time/#ParseDuration).
|
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|
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For example, "@every 1h30m10s" would indicate a schedule that activates every |
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1 hour, 30 minutes, 10 seconds. |
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|
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Note: The interval does not take the job runtime into account. For example, |
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if a job takes 3 minutes to run, and it is scheduled to run every 5 minutes, |
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it will have only 2 minutes of idle time between each run. |
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|
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Time zones |
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|
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All interpretation and scheduling is done in the machine's local time zone (as |
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provided by the Go time package (http://www.golang.org/pkg/time).
|
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|
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Be aware that jobs scheduled during daylight-savings leap-ahead transitions will |
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not be run! |
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|
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Thread safety |
||||
|
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Since the Cron service runs concurrently with the calling code, some amount of |
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care must be taken to ensure proper synchronization. |
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|
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All cron methods are designed to be correctly synchronized as long as the caller |
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ensures that invocations have a clear happens-before ordering between them. |
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|
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Implementation |
||||
|
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Cron entries are stored in an array, sorted by their next activation time. Cron |
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sleeps until the next job is due to be run. |
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|
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Upon waking: |
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- it runs each entry that is active on that second |
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- it calculates the next run times for the jobs that were run |
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- it re-sorts the array of entries by next activation time. |
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- it goes to sleep until the soonest job. |
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*/ |
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package cron |
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@ -1,231 +0,0 @@
|
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package cron |
||||
|
||||
import ( |
||||
"fmt" |
||||
"log" |
||||
"math" |
||||
"strconv" |
||||
"strings" |
||||
"time" |
||||
) |
||||
|
||||
// Parse returns a new crontab schedule representing the given spec.
|
||||
// It returns a descriptive error if the spec is not valid.
|
||||
//
|
||||
// It accepts
|
||||
// - Full crontab specs, e.g. "* * * * * ?"
|
||||
// - Descriptors, e.g. "@midnight", "@every 1h30m"
|
||||
func Parse(spec string) (_ Schedule, err error) { |
||||
// Convert panics into errors
|
||||
defer func() { |
||||
if recovered := recover(); recovered != nil { |
||||
err = fmt.Errorf("%v", recovered) |
||||
} |
||||
}() |
||||
|
||||
if spec[0] == '@' { |
||||
return parseDescriptor(spec), nil |
||||
} |
||||
|
||||
// Split on whitespace. We require 5 or 6 fields.
|
||||
// (second) (minute) (hour) (day of month) (month) (day of week, optional)
|
||||
fields := strings.Fields(spec) |
||||
if len(fields) != 5 && len(fields) != 6 { |
||||
log.Panicf("Expected 5 or 6 fields, found %d: %s", len(fields), spec) |
||||
} |
||||
|
||||
// If a sixth field is not provided (DayOfWeek), then it is equivalent to star.
|
||||
if len(fields) == 5 { |
||||
fields = append(fields, "*") |
||||
} |
||||
|
||||
schedule := &SpecSchedule{ |
||||
Second: getField(fields[0], seconds), |
||||
Minute: getField(fields[1], minutes), |
||||
Hour: getField(fields[2], hours), |
||||
Dom: getField(fields[3], dom), |
||||
Month: getField(fields[4], months), |
||||
Dow: getField(fields[5], dow), |
||||
} |
||||
|
||||
return schedule, nil |
||||
} |
||||
|
||||
// getField returns an Int with the bits set representing all of the times that
|
||||
// the field represents. A "field" is a comma-separated list of "ranges".
|
||||
func getField(field string, r bounds) uint64 { |
||||
// list = range {"," range}
|
||||
var bits uint64 |
||||
ranges := strings.FieldsFunc(field, func(r rune) bool { return r == ',' }) |
||||
for _, expr := range ranges { |
||||
bits |= getRange(expr, r) |
||||
} |
||||
return bits |
||||
} |
||||
|
||||
// getRange returns the bits indicated by the given expression:
|
||||
// number | number "-" number [ "/" number ]
|
||||
func getRange(expr string, r bounds) uint64 { |
||||
|
||||
var ( |
||||
start, end, step uint |
||||
rangeAndStep = strings.Split(expr, "/") |
||||
lowAndHigh = strings.Split(rangeAndStep[0], "-") |
||||
singleDigit = len(lowAndHigh) == 1 |
||||
) |
||||
|
||||
var extra_star uint64 |
||||
if lowAndHigh[0] == "*" || lowAndHigh[0] == "?" { |
||||
start = r.min |
||||
end = r.max |
||||
extra_star = starBit |
||||
} else { |
||||
start = parseIntOrName(lowAndHigh[0], r.names) |
||||
switch len(lowAndHigh) { |
||||
case 1: |
||||
end = start |
||||
case 2: |
||||
end = parseIntOrName(lowAndHigh[1], r.names) |
||||
default: |
||||
log.Panicf("Too many hyphens: %s", expr) |
||||
} |
||||
} |
||||
|
||||
switch len(rangeAndStep) { |
||||
case 1: |
||||
step = 1 |
||||
case 2: |
||||
step = mustParseInt(rangeAndStep[1]) |
||||
|
||||
// Special handling: "N/step" means "N-max/step".
|
||||
if singleDigit { |
||||
end = r.max |
||||
} |
||||
default: |
||||
log.Panicf("Too many slashes: %s", expr) |
||||
} |
||||
|
||||
if start < r.min { |
||||
log.Panicf("Beginning of range (%d) below minimum (%d): %s", start, r.min, expr) |
||||
} |
||||
if end > r.max { |
||||
log.Panicf("End of range (%d) above maximum (%d): %s", end, r.max, expr) |
||||
} |
||||
if start > end { |
||||
log.Panicf("Beginning of range (%d) beyond end of range (%d): %s", start, end, expr) |
||||
} |
||||
|
||||
return getBits(start, end, step) | extra_star |
||||
} |
||||
|
||||
// parseIntOrName returns the (possibly-named) integer contained in expr.
|
||||
func parseIntOrName(expr string, names map[string]uint) uint { |
||||
if names != nil { |
||||
if namedInt, ok := names[strings.ToLower(expr)]; ok { |
||||
return namedInt |
||||
} |
||||
} |
||||
return mustParseInt(expr) |
||||
} |
||||
|
||||
// mustParseInt parses the given expression as an int or panics.
|
||||
func mustParseInt(expr string) uint { |
||||
num, err := strconv.Atoi(expr) |
||||
if err != nil { |
||||
log.Panicf("Failed to parse int from %s: %s", expr, err) |
||||
} |
||||
if num < 0 { |
||||
log.Panicf("Negative number (%d) not allowed: %s", num, expr) |
||||
} |
||||
|
||||
return uint(num) |
||||
} |
||||
|
||||
// getBits sets all bits in the range [min, max], modulo the given step size.
|
||||
func getBits(min, max, step uint) uint64 { |
||||
var bits uint64 |
||||
|
||||
// If step is 1, use shifts.
|
||||
if step == 1 { |
||||
return ^(math.MaxUint64 << (max + 1)) & (math.MaxUint64 << min) |
||||
} |
||||
|
||||
// Else, use a simple loop.
|
||||
for i := min; i <= max; i += step { |
||||
bits |= 1 << i |
||||
} |
||||
return bits |
||||
} |
||||
|
||||
// all returns all bits within the given bounds. (plus the star bit)
|
||||
func all(r bounds) uint64 { |
||||
return getBits(r.min, r.max, 1) | starBit |
||||
} |
||||
|
||||
// parseDescriptor returns a pre-defined schedule for the expression, or panics
|
||||
// if none matches.
|
||||
func parseDescriptor(spec string) Schedule { |
||||
switch spec { |
||||
case "@yearly", "@annually": |
||||
return &SpecSchedule{ |
||||
Second: 1 << seconds.min, |
||||
Minute: 1 << minutes.min, |
||||
Hour: 1 << hours.min, |
||||
Dom: 1 << dom.min, |
||||
Month: 1 << months.min, |
||||
Dow: all(dow), |
||||
} |
||||
|
||||
case "@monthly": |
||||
return &SpecSchedule{ |
||||
Second: 1 << seconds.min, |
||||
Minute: 1 << minutes.min, |
||||
Hour: 1 << hours.min, |
||||
Dom: 1 << dom.min, |
||||
Month: all(months), |
||||
Dow: all(dow), |
||||
} |
||||
|
||||
case "@weekly": |
||||
return &SpecSchedule{ |
||||
Second: 1 << seconds.min, |
||||
Minute: 1 << minutes.min, |
||||
Hour: 1 << hours.min, |
||||
Dom: all(dom), |
||||
Month: all(months), |
||||
Dow: 1 << dow.min, |
||||
} |
||||
|
||||
case "@daily", "@midnight": |
||||
return &SpecSchedule{ |
||||
Second: 1 << seconds.min, |
||||
Minute: 1 << minutes.min, |
||||
Hour: 1 << hours.min, |
||||
Dom: all(dom), |
||||
Month: all(months), |
||||
Dow: all(dow), |
||||
} |
||||
|
||||
case "@hourly": |
||||
return &SpecSchedule{ |
||||
Second: 1 << seconds.min, |
||||
Minute: 1 << minutes.min, |
||||
Hour: all(hours), |
||||
Dom: all(dom), |
||||
Month: all(months), |
||||
Dow: all(dow), |
||||
} |
||||
} |
||||
|
||||
const every = "@every " |
||||
if strings.HasPrefix(spec, every) { |
||||
duration, err := time.ParseDuration(spec[len(every):]) |
||||
if err != nil { |
||||
log.Panicf("Failed to parse duration %s: %s", spec, err) |
||||
} |
||||
return Every(duration) |
||||
} |
||||
|
||||
log.Panicf("Unrecognized descriptor: %s", spec) |
||||
return nil |
||||
} |
||||
@ -1,117 +0,0 @@
|
||||
package cron |
||||
|
||||
import ( |
||||
"reflect" |
||||
"testing" |
||||
"time" |
||||
) |
||||
|
||||
func TestRange(t *testing.T) { |
||||
ranges := []struct { |
||||
expr string |
||||
min, max uint |
||||
expected uint64 |
||||
}{ |
||||
{"5", 0, 7, 1 << 5}, |
||||
{"0", 0, 7, 1 << 0}, |
||||
{"7", 0, 7, 1 << 7}, |
||||
|
||||
{"5-5", 0, 7, 1 << 5}, |
||||
{"5-6", 0, 7, 1<<5 | 1<<6}, |
||||
{"5-7", 0, 7, 1<<5 | 1<<6 | 1<<7}, |
||||
|
||||
{"5-6/2", 0, 7, 1 << 5}, |
||||
{"5-7/2", 0, 7, 1<<5 | 1<<7}, |
||||
{"5-7/1", 0, 7, 1<<5 | 1<<6 | 1<<7}, |
||||
|
||||
{"*", 1, 3, 1<<1 | 1<<2 | 1<<3 | starBit}, |
||||
{"*/2", 1, 3, 1<<1 | 1<<3 | starBit}, |
||||
} |
||||
|
||||
for _, c := range ranges { |
||||
actual := getRange(c.expr, bounds{c.min, c.max, nil}) |
||||
if actual != c.expected { |
||||
t.Errorf("%s => (expected) %d != %d (actual)", c.expr, c.expected, actual) |
||||
} |
||||
} |
||||
} |
||||
|
||||
func TestField(t *testing.T) { |
||||
fields := []struct { |
||||
expr string |
||||
min, max uint |
||||
expected uint64 |
||||
}{ |
||||
{"5", 1, 7, 1 << 5}, |
||||
{"5,6", 1, 7, 1<<5 | 1<<6}, |
||||
{"5,6,7", 1, 7, 1<<5 | 1<<6 | 1<<7}, |
||||
{"1,5-7/2,3", 1, 7, 1<<1 | 1<<5 | 1<<7 | 1<<3}, |
||||
} |
||||
|
||||
for _, c := range fields { |
||||
actual := getField(c.expr, bounds{c.min, c.max, nil}) |
||||
if actual != c.expected { |
||||
t.Errorf("%s => (expected) %d != %d (actual)", c.expr, c.expected, actual) |
||||
} |
||||
} |
||||
} |
||||
|
||||
func TestBits(t *testing.T) { |
||||
allBits := []struct { |
||||
r bounds |
||||
expected uint64 |
||||
}{ |
||||
{minutes, 0xfffffffffffffff}, // 0-59: 60 ones
|
||||
{hours, 0xffffff}, // 0-23: 24 ones
|
||||
{dom, 0xfffffffe}, // 1-31: 31 ones, 1 zero
|
||||
{months, 0x1ffe}, // 1-12: 12 ones, 1 zero
|
||||
{dow, 0x7f}, // 0-6: 7 ones
|
||||
} |
||||
|
||||
for _, c := range allBits { |
||||
actual := all(c.r) // all() adds the starBit, so compensate for that..
|
||||
if c.expected|starBit != actual { |
||||
t.Errorf("%d-%d/%d => (expected) %b != %b (actual)", |
||||
c.r.min, c.r.max, 1, c.expected|starBit, actual) |
||||
} |
||||
} |
||||
|
||||
bits := []struct { |
||||
min, max, step uint |
||||
expected uint64 |
||||
}{ |
||||
|
||||
{0, 0, 1, 0x1}, |
||||
{1, 1, 1, 0x2}, |
||||
{1, 5, 2, 0x2a}, // 101010
|
||||
{1, 4, 2, 0xa}, // 1010
|
||||
} |
||||
|
||||
for _, c := range bits { |
||||
actual := getBits(c.min, c.max, c.step) |
||||
if c.expected != actual { |
||||
t.Errorf("%d-%d/%d => (expected) %b != %b (actual)", |
||||
c.min, c.max, c.step, c.expected, actual) |
||||
} |
||||
} |
||||
} |
||||
|
||||
func TestSpecSchedule(t *testing.T) { |
||||
entries := []struct { |
||||
expr string |
||||
expected Schedule |
||||
}{ |
||||
{"* 5 * * * *", &SpecSchedule{all(seconds), 1 << 5, all(hours), all(dom), all(months), all(dow)}}, |
||||
{"@every 5m", ConstantDelaySchedule{time.Duration(5) * time.Minute}}, |
||||
} |
||||
|
||||
for _, c := range entries { |
||||
actual, err := Parse(c.expr) |
||||
if err != nil { |
||||
t.Error(err) |
||||
} |
||||
if !reflect.DeepEqual(actual, c.expected) { |
||||
t.Errorf("%s => (expected) %v != %v (actual)", c.expr, c.expected, actual) |
||||
} |
||||
} |
||||
} |
||||
@ -1,161 +0,0 @@
|
||||
package cron |
||||
|
||||
import ( |
||||
"time" |
||||
) |
||||
|
||||
// SpecSchedule specifies a duty cycle (to the second granularity), based on a
|
||||
// traditional crontab specification. It is computed initially and stored as bit sets.
|
||||
type SpecSchedule struct { |
||||
Second, Minute, Hour, Dom, Month, Dow uint64 |
||||
} |
||||
|
||||
// bounds provides a range of acceptable values (plus a map of name to value).
|
||||
type bounds struct { |
||||
min, max uint |
||||
names map[string]uint |
||||
} |
||||
|
||||
// The bounds for each field.
|
||||
var ( |
||||
seconds = bounds{0, 59, nil} |
||||
minutes = bounds{0, 59, nil} |
||||
hours = bounds{0, 23, nil} |
||||
dom = bounds{1, 31, nil} |
||||
months = bounds{1, 12, map[string]uint{ |
||||
"jan": 1, |
||||
"feb": 2, |
||||
"mar": 3, |
||||
"apr": 4, |
||||
"may": 5, |
||||
"jun": 6, |
||||
"jul": 7, |
||||
"aug": 8, |
||||
"sep": 9, |
||||
"oct": 10, |
||||
"nov": 11, |
||||
"dec": 12, |
||||
}} |
||||
dow = bounds{0, 6, map[string]uint{ |
||||
"sun": 0, |
||||
"mon": 1, |
||||
"tue": 2, |
||||
"wed": 3, |
||||
"thu": 4, |
||||
"fri": 5, |
||||
"sat": 6, |
||||
}} |
||||
) |
||||
|
||||
const ( |
||||
// Set the top bit if a star was included in the expression.
|
||||
starBit = 1 << 63 |
||||
) |
||||
|
||||
// Next returns the next time this schedule is activated, greater than the given
|
||||
// time. If no time can be found to satisfy the schedule, return the zero time.
|
||||
func (s *SpecSchedule) Next(t time.Time) time.Time { |
||||
// General approach:
|
||||
// For Month, Day, Hour, Minute, Second:
|
||||
// Check if the time value matches. If yes, continue to the next field.
|
||||
// If the field doesn't match the schedule, then increment the field until it matches.
|
||||
// While incrementing the field, a wrap-around brings it back to the beginning
|
||||
// of the field list (since it is necessary to re-verify previous field
|
||||
// values)
|
||||
|
||||
// Start at the earliest possible time (the upcoming second).
|
||||
t = t.Add(1*time.Second - time.Duration(t.Nanosecond())*time.Nanosecond) |
||||
|
||||
// This flag indicates whether a field has been incremented.
|
||||
added := false |
||||
|
||||
// If no time is found within five years, return zero.
|
||||
yearLimit := t.Year() + 5 |
||||
|
||||
WRAP: |
||||
if t.Year() > yearLimit { |
||||
return time.Time{} |
||||
} |
||||
|
||||
// Find the first applicable month.
|
||||
// If it's this month, then do nothing.
|
||||
for 1<<uint(t.Month())&s.Month == 0 { |
||||
// If we have to add a month, reset the other parts to 0.
|
||||
if !added { |
||||
added = true |
||||
// Otherwise, set the date at the beginning (since the current time is irrelevant).
|
||||
t = time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, t.Location()) |
||||
} |
||||
t = t.AddDate(0, 1, 0) |
||||
|
||||
// Wrapped around.
|
||||
if t.Month() == time.January { |
||||
goto WRAP |
||||
} |
||||
} |
||||
|
||||
// Now get a day in that month.
|
||||
for !dayMatches(s, t) { |
||||
if !added { |
||||
added = true |
||||
t = time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location()) |
||||
} |
||||
t = t.AddDate(0, 0, 1) |
||||
|
||||
if t.Day() == 1 { |
||||
goto WRAP |
||||
} |
||||
} |
||||
|
||||
for 1<<uint(t.Hour())&s.Hour == 0 { |
||||
if !added { |
||||
added = true |
||||
t = time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), 0, 0, 0, t.Location()) |
||||
} |
||||
t = t.Add(1 * time.Hour) |
||||
|
||||
if t.Hour() == 0 { |
||||
goto WRAP |
||||
} |
||||
} |
||||
|
||||
for 1<<uint(t.Minute())&s.Minute == 0 { |
||||
if !added { |
||||
added = true |
||||
t = time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), 0, 0, t.Location()) |
||||
} |
||||
t = t.Add(1 * time.Minute) |
||||
|
||||
if t.Minute() == 0 { |
||||
goto WRAP |
||||
} |
||||
} |
||||
|
||||
for 1<<uint(t.Second())&s.Second == 0 { |
||||
if !added { |
||||
added = true |
||||
t = time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second(), 0, t.Location()) |
||||
} |
||||
t = t.Add(1 * time.Second) |
||||
|
||||
if t.Second() == 0 { |
||||
goto WRAP |
||||
} |
||||
} |
||||
|
||||
return t |
||||
} |
||||
|
||||
// dayMatches returns true if the schedule's day-of-week and day-of-month
|
||||
// restrictions are satisfied by the given time.
|
||||
func dayMatches(s *SpecSchedule, t time.Time) bool { |
||||
var ( |
||||
domMatch bool = 1<<uint(t.Day())&s.Dom > 0 |
||||
dowMatch bool = 1<<uint(t.Weekday())&s.Dow > 0 |
||||
) |
||||
|
||||
if s.Dom&starBit > 0 || s.Dow&starBit > 0 { |
||||
return domMatch && dowMatch |
||||
} |
||||
return domMatch || dowMatch |
||||
} |
||||
@ -1,173 +0,0 @@
|
||||
package cron |
||||
|
||||
import ( |
||||
"testing" |
||||
"time" |
||||
) |
||||
|
||||
func TestActivation(t *testing.T) { |
||||
tests := []struct { |
||||
time, spec string |
||||
expected bool |
||||
}{ |
||||
// Every fifteen minutes.
|
||||
{"Mon Jul 9 15:00 2012", "0 0/15 * * *", true}, |
||||
{"Mon Jul 9 15:45 2012", "0 0/15 * * *", true}, |
||||
{"Mon Jul 9 15:40 2012", "0 0/15 * * *", false}, |
||||
|
||||
// Every fifteen minutes, starting at 5 minutes.
|
||||
{"Mon Jul 9 15:05 2012", "0 5/15 * * *", true}, |
||||
{"Mon Jul 9 15:20 2012", "0 5/15 * * *", true}, |
||||
{"Mon Jul 9 15:50 2012", "0 5/15 * * *", true}, |
||||
|
||||
// Named months
|
||||
{"Sun Jul 15 15:00 2012", "0 0/15 * * Jul", true}, |
||||
{"Sun Jul 15 15:00 2012", "0 0/15 * * Jun", false}, |
||||
|
||||
// Everything set.
|
||||
{"Sun Jul 15 08:30 2012", "0 30 08 ? Jul Sun", true}, |
||||
{"Sun Jul 15 08:30 2012", "0 30 08 15 Jul ?", true}, |
||||
{"Mon Jul 16 08:30 2012", "0 30 08 ? Jul Sun", false}, |
||||
{"Mon Jul 16 08:30 2012", "0 30 08 15 Jul ?", false}, |
||||
|
||||
// Predefined schedules
|
||||
{"Mon Jul 9 15:00 2012", "@hourly", true}, |
||||
{"Mon Jul 9 15:04 2012", "@hourly", false}, |
||||
{"Mon Jul 9 15:00 2012", "@daily", false}, |
||||
{"Mon Jul 9 00:00 2012", "@daily", true}, |
||||
{"Mon Jul 9 00:00 2012", "@weekly", false}, |
||||
{"Sun Jul 8 00:00 2012", "@weekly", true}, |
||||
{"Sun Jul 8 01:00 2012", "@weekly", false}, |
||||
{"Sun Jul 8 00:00 2012", "@monthly", false}, |
||||
{"Sun Jul 1 00:00 2012", "@monthly", true}, |
||||
|
||||
// Test interaction of DOW and DOM.
|
||||
// If both are specified, then only one needs to match.
|
||||
{"Sun Jul 15 00:00 2012", "0 * * 1,15 * Sun", true}, |
||||
{"Fri Jun 15 00:00 2012", "0 * * 1,15 * Sun", true}, |
||||
{"Wed Aug 1 00:00 2012", "0 * * 1,15 * Sun", true}, |
||||
|
||||
// However, if one has a star, then both need to match.
|
||||
{"Sun Jul 15 00:00 2012", "0 * * * * Mon", false}, |
||||
{"Sun Jul 15 00:00 2012", "0 * * */10 * Sun", false}, |
||||
{"Mon Jul 9 00:00 2012", "0 * * 1,15 * *", false}, |
||||
{"Sun Jul 15 00:00 2012", "0 * * 1,15 * *", true}, |
||||
{"Sun Jul 15 00:00 2012", "0 * * */2 * Sun", true}, |
||||
} |
||||
|
||||
for _, test := range tests { |
||||
sched, err := Parse(test.spec) |
||||
if err != nil { |
||||
t.Error(err) |
||||
continue |
||||
} |
||||
actual := sched.Next(getTime(test.time).Add(-1 * time.Second)) |
||||
expected := getTime(test.time) |
||||
if test.expected && expected != actual || !test.expected && expected == actual { |
||||
t.Errorf("Fail evaluating %s on %s: (expected) %s != %s (actual)", |
||||
test.spec, test.time, expected, actual) |
||||
} |
||||
} |
||||
} |
||||
|
||||
func TestNext(t *testing.T) { |
||||
runs := []struct { |
||||
time, spec string |
||||
expected string |
||||
}{ |
||||
// Simple cases
|
||||
{"Mon Jul 9 14:45 2012", "0 0/15 * * *", "Mon Jul 9 15:00 2012"}, |
||||
{"Mon Jul 9 14:59 2012", "0 0/15 * * *", "Mon Jul 9 15:00 2012"}, |
||||
{"Mon Jul 9 14:59:59 2012", "0 0/15 * * *", "Mon Jul 9 15:00 2012"}, |
||||
|
||||
// Wrap around hours
|
||||
{"Mon Jul 9 15:45 2012", "0 20-35/15 * * *", "Mon Jul 9 16:20 2012"}, |
||||
|
||||
// Wrap around days
|
||||
{"Mon Jul 9 23:46 2012", "0 */15 * * *", "Tue Jul 10 00:00 2012"}, |
||||
{"Mon Jul 9 23:45 2012", "0 20-35/15 * * *", "Tue Jul 10 00:20 2012"}, |
||||
{"Mon Jul 9 23:35:51 2012", "15/35 20-35/15 * * *", "Tue Jul 10 00:20:15 2012"}, |
||||
{"Mon Jul 9 23:35:51 2012", "15/35 20-35/15 1/2 * *", "Tue Jul 10 01:20:15 2012"}, |
||||
{"Mon Jul 9 23:35:51 2012", "15/35 20-35/15 10-12 * *", "Tue Jul 10 10:20:15 2012"}, |
||||
|
||||
{"Mon Jul 9 23:35:51 2012", "15/35 20-35/15 1/2 */2 * *", "Thu Jul 11 01:20:15 2012"}, |
||||
{"Mon Jul 9 23:35:51 2012", "15/35 20-35/15 * 9-20 * *", "Wed Jul 10 00:20:15 2012"}, |
||||
{"Mon Jul 9 23:35:51 2012", "15/35 20-35/15 * 9-20 Jul *", "Wed Jul 10 00:20:15 2012"}, |
||||
|
||||
// Wrap around months
|
||||
{"Mon Jul 9 23:35 2012", "0 0 0 9 Apr-Oct ?", "Thu Aug 9 00:00 2012"}, |
||||
{"Mon Jul 9 23:35 2012", "0 0 0 */5 Apr,Aug,Oct Mon", "Mon Aug 6 00:00 2012"}, |
||||
{"Mon Jul 9 23:35 2012", "0 0 0 */5 Oct Mon", "Mon Oct 1 00:00 2012"}, |
||||
|
||||
// Wrap around years
|
||||
{"Mon Jul 9 23:35 2012", "0 0 0 * Feb Mon", "Mon Feb 4 00:00 2013"}, |
||||
{"Mon Jul 9 23:35 2012", "0 0 0 * Feb Mon/2", "Fri Feb 1 00:00 2013"}, |
||||
|
||||
// Wrap around minute, hour, day, month, and year
|
||||
{"Mon Dec 31 23:59:45 2012", "0 * * * * *", "Tue Jan 1 00:00:00 2013"}, |
||||
|
||||
// Leap year
|
||||
{"Mon Jul 9 23:35 2012", "0 0 0 29 Feb ?", "Mon Feb 29 00:00 2016"}, |
||||
|
||||
// Daylight savings time EST -> EDT
|
||||
{"2012-03-11T00:00:00-0500", "0 30 2 11 Mar ?", "2013-03-11T02:30:00-0400"}, |
||||
|
||||
// Daylight savings time EDT -> EST
|
||||
{"2012-11-04T00:00:00-0400", "0 30 2 04 Nov ?", "2012-11-04T02:30:00-0500"}, |
||||
{"2012-11-04T01:45:00-0400", "0 30 1 04 Nov ?", "2012-11-04T01:30:00-0500"}, |
||||
|
||||
// Unsatisfiable
|
||||
{"Mon Jul 9 23:35 2012", "0 0 0 30 Feb ?", ""}, |
||||
{"Mon Jul 9 23:35 2012", "0 0 0 31 Apr ?", ""}, |
||||
} |
||||
|
||||
for _, c := range runs { |
||||
sched, err := Parse(c.spec) |
||||
if err != nil { |
||||
t.Error(err) |
||||
continue |
||||
} |
||||
actual := sched.Next(getTime(c.time)) |
||||
expected := getTime(c.expected) |
||||
if !actual.Equal(expected) { |
||||
t.Errorf("%s, \"%s\": (expected) %v != %v (actual)", c.time, c.spec, expected, actual) |
||||
} |
||||
} |
||||
} |
||||
|
||||
func TestErrors(t *testing.T) { |
||||
invalidSpecs := []string{ |
||||
"xyz", |
||||
"60 0 * * *", |
||||
"0 60 * * *", |
||||
"0 0 * * XYZ", |
||||
} |
||||
for _, spec := range invalidSpecs { |
||||
_, err := Parse(spec) |
||||
if err == nil { |
||||
t.Error("expected an error parsing: ", spec) |
||||
} |
||||
} |
||||
} |
||||
|
||||
func getTime(value string) time.Time { |
||||
if value == "" { |
||||
return time.Time{} |
||||
} |
||||
t, err := time.Parse("Mon Jan 2 15:04 2006", value) |
||||
if err != nil { |
||||
t, err = time.Parse("Mon Jan 2 15:04:05 2006", value) |
||||
if err != nil { |
||||
t, err = time.Parse("2006-01-02T15:04:05-0700", value) |
||||
if err != nil { |
||||
panic(err) |
||||
} |
||||
// Daylight savings time tests require location
|
||||
if ny, err := time.LoadLocation("America/New_York"); err == nil { |
||||
t = t.In(ny) |
||||
} |
||||
} |
||||
} |
||||
|
||||
return t |
||||
} |
||||
Loading…
Reference in new issue