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-rw-r--r--Propellor/Property/Cron.hs8
1 files changed, 5 insertions, 3 deletions
diff --git a/Propellor/Property/Cron.hs b/Propellor/Property/Cron.hs
index 71580bc3..0649ee9f 100644
--- a/Propellor/Property/Cron.hs
+++ b/Propellor/Property/Cron.hs
@@ -16,6 +16,8 @@ type CronTimes = String
-- Only one instance of the cron job is allowed to run at a time, no matter
-- how long it runs. This is accomplished using flock locking of the cron
-- job file.
+--
+-- The cron job's output will only be emailed if it exits nonzero.
job :: Desc -> CronTimes -> UserName -> FilePath -> String -> Property
job desc times user cddir command = cronjobfile `File.hasContent`
[ "# Generated by propellor"
@@ -24,10 +26,11 @@ job desc times user cddir command = cronjobfile `File.hasContent`
, "PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin"
, ""
, times ++ "\t" ++ user ++ "\t"
- ++ "flock -n " ++ shellEscape cronjobfile
+ ++ "chronic flock -n " ++ shellEscape cronjobfile
++ " sh -c " ++ shellEscape cmdline
]
`requires` Apt.serviceInstalledRunning "cron"
+ `requires` Apt.installed ["util-linux", "moreutils"]
`describe` ("cronned " ++ desc)
where
cmdline = "cd " ++ cddir ++ " && " ++ command
@@ -40,8 +43,7 @@ job desc times user cddir command = cronjobfile `File.hasContent`
niceJob :: Desc -> CronTimes -> UserName -> FilePath -> String -> Property
niceJob desc times user cddir command = job desc times user cddir
("nice ionice -c 3 " ++ command)
- `requires` Apt.installed ["util-linux", "moreutils"]
-- | Installs a cron job to run propellor.
runPropellor :: CronTimes -> Property
-runPropellor times = niceJob "propellor" times "root" localdir "chronic make"
+runPropellor times = niceJob "propellor" times "root" localdir "make"