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made sequence more flexible, can handle descending and negative sequences and is skipped if start==end

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This commit is contained in:
Brian Coca 2015-03-27 15:41:02 -04:00
parent d628f3f591
commit 35a2ca8a5d
1 changed files with 14 additions and 6 deletions
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16
lib/ansible/runner/lookup_plugins/sequence.py
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@ -151,10 +151,17 @@ class LookupModule(object):
)
elif self.count is not None:
# convert count to end
if self.count != 0:
self.end = self.start + self.count * self.stride - 1
else:
self.start = 0
self.end = 0
self.stride = 0
del self.count
if self.end < self.start:
raise AnsibleError("can't count backwards")
if self.stride > 0 and self.end < self.start:
raise AnsibleError("to count backwards make stride negative")
if self.stride < 0 and self.end > self.start:
raise AnsibleError("to count forward don't make stride negative")
if self.format.count('%') != 1:
raise AnsibleError("bad formatting string: %s" % self.format)
@ -193,12 +200,13 @@ class LookupModule(object):
self.sanity_check()
if self.start != self.end:
results.extend(self.generate_sequence())
except AnsibleError:
raise
except Exception:
except Exception, e:
raise AnsibleError(
"unknown error generating sequence"
"unknown error generating sequence: %s" % str(e)
)
return results