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authorSébastien Dailly <sebastien@chimrod.com>2013-05-08 11:06:31 +0200
committerSébastien Dailly <sebastien@chimrod.com>2013-05-08 19:30:28 +0200
commit5bd3c5ca95731e81ceaabedc04367e832ffbf5bb (patch)
treea98c63ca4cfbbbc47c62611f7973f36ac8b1b72c /content/resources/fcron2cron.py
parent22e881fa89e4b3b8f6207d2c2e8713c2ff919400 (diff)
New article on fcron to cron migration
Diffstat (limited to 'content/resources/fcron2cron.py')
-rw-r--r--content/resources/fcron2cron.py68
1 files changed, 68 insertions, 0 deletions
diff --git a/content/resources/fcron2cron.py b/content/resources/fcron2cron.py
new file mode 100644
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+++ b/content/resources/fcron2cron.py
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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import sys
+import subprocess
+import os
+
+FCRON_LIST="/var/spool/fcron"
+
+def transform_variable(variables):
+ """ Transform a list of variables like
+ bootrun(true),nice(15),serial(true)
+ """
+
+ variable_operators = {
+ 'mail': lambda x: x == "false" and 'MAILTO=""' or "",
+ 'mailto': lambda x : 'MAILTO="%s"' %x,
+
+ }
+
+ transforms = ""
+
+ for variable in variables.split(","):
+ attribute, value = variable.split('(')
+ transforms += variable_operators.get(attribute, lambda x:"")(value[:-1])
+ return transforms
+
+def transform_directive(line):
+ operators = {
+ 'hourly': ('@hourly', 2),
+ 'midhourly': ('@hourly', 2),
+ 'daily': ('@daily', 3),
+ 'middaily': ('@daily', 3),
+ 'nightly': ('@daily', 3),
+ 'weekly': ('@weekly', 3),
+ 'midweekly': ('@weekly', 3),
+ 'montly': ('@montly', 4),
+ 'midmonthly': ('@montly', 4),
+ }
+ operator = line.split(" ")[0].split(',')[0]
+ substitute, to_trim = operators.get(operator, ("", 0))
+ return "%s\t%s" %(substitute, line.split(None, to_trim)[to_trim])
+
+def transform(line):
+ if line == '':
+ return ''
+ transformation = {
+ '!': lambda x:transform_variable(x[1:]),
+ '%': lambda x:transform_directive(x[1:]),
+ '&': lambda x: x.split(None, 1)[1],
+ }
+ return transformation.get(line[0], lambda x:x)(line)
+
+def main(parameters):
+ configs = os.listdir(FCRON_LIST)
+ for config in configs:
+ process = subprocess.Popen(["fcrontab", "-l", config], universal_newlines=True, stdout=subprocess.PIPE)
+ f = open('%s.crontab' % config, 'w')
+ for line in process.stdout:
+ transformation = transform(line.strip().expandtabs(1))
+ if transformation is not None:
+ f.write("%s\n" % transformation)
+ f.close()
+
+
+if __name__ == "__main__":
+ main(sys.argv)
+