[systemd-devel] v216 timers: a configuration for enterprise's needs, features requests

[Daniele Medri]

Dears,

testing timers on systemd v216, I've made a configuration that could be
useful for enterprise's needs:

https://github.com/dmedri/systemd-enterprise-timers

The following ideas could be useful for the editing job.

FEATURES REQUESTS

1. in /src/shared/calendarspec.c, calendar_spec_from_string(...), add new
cases for:
- "minutely" (OnCalendar=*:0/1:00)
- "quarterly" (OnCalendar=01,04,07,10-01)
- "semesterly" (OnCalendar=01,07-01)

2. add an utils to check OnCalendar= syntax.

What should expect an user from the utility of point 2.?
- print a list of timestamps from a syntax expression (like the "NEXT"
field in systemctl list-timers --all)
- introduce a human readable string for syntax expressions (eg. "hourly" ->
"Every hour.") that we could translate in different languages and share
with desktop applications (eg. for backup, to send email, ...).

Example output:

------------------------------------------------------
$ systemctl calendar-syntax 'hourly'

       Syntax: hourly
Normalized : *-*-* *:00:00
Description : "Every hour"

Next timestamps:
mer 17 set 2014, 17.00.00, CEST
mer 17 set 2014, 18.00.00, CEST
mer 17 set 2014, 19.00.00, CEST
mer 17 set 2014, 20.00.00, CEST
mer 17 set 2014, 21.00.00, CEST
mer 17 set 2014, 22.00.00, CEST
mer 17 set 2014, 23.00.00, CEST
...
------------------------------------------------------


HTH

--
DM
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