cron

package

v0.0.11 Latest Latest Go to latest Published: Apr 11, 2026 License: MIT Imports: 4 Imported by: 0

Details

Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/amjadjibon/memsh

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Documentation ¶

Overview ¶

Package cron provides cron expression parsing, matching, and crontab file parsing for the memsh virtual shell scheduler, backed by robfig/cron/v3.

Index ¶

Constants
func CronMatches(sched CronExpr, t time.Time) bool
type CronExpr
- func ParseCronExpr(s string) (CronExpr, error)
type CronJob
- func ParseCrontab(data string) ([]CronJob, error)

Constants ¶

View Source

const CronLogFile = "/.cron_log"

CronLogFile is the virtual-FS path where cron job output is appended.

View Source

const CrontabFile = "/.crontab"

CrontabFile is the virtual-FS path where the user's crontab is stored.

Variables ¶

This section is empty.

Functions ¶

func CronMatches ¶

func CronMatches(sched CronExpr, t time.Time) bool

CronMatches reports whether sched fires at the given time (minute granularity).

robfig's Schedule.Next(t) returns the next fire time strictly after t, so we check whether the first fire time after (m − 1ns) is exactly m.

Types ¶

type CronExpr ¶

type CronExpr = robfig.Schedule

CronExpr is a parsed cron schedule. It is a type alias for robfig.Schedule so callers that already hold a CronExpr can pass it directly to CronMatches without any conversion.

func ParseCronExpr ¶

func ParseCronExpr(s string) (CronExpr, error)

ParseCronExpr parses a cron expression string into a CronExpr (Schedule). Both 5-field ("m h dom mon dow") and @special forms are accepted. The day-of-week value 7 (Sunday alias used by many cron implementations) is normalised to 0 before passing to the parser, since robfig/cron/v3 only accepts 0–6 in that field.

type CronJob ¶

type CronJob struct {
	Expr    CronExpr
	Command string
	Raw     string
}

CronJob is one entry parsed from a crontab file.

func ParseCrontab ¶

func ParseCrontab(data string) ([]CronJob, error)

ParseCrontab parses the content of a crontab file into a slice of CronJobs. Blank lines and lines beginning with '#' are ignored. Each non-comment line must be either:

@special command...          (e.g. "@daily /backup.sh")
m h dom mon dow command...   (standard 5-field form)

Source Files ¶

View all Source files

cron.go

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