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From bdf024c20213110306b2fcf3651f274c229aae29 Mon Sep 17 00:00:00 2001
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From: Martin Babinsky <mbabinsk@redhat.com>
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Date: Thu, 22 Jun 2017 13:18:54 +0200
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Subject: [PATCH] add a class that tracks the indentation in the generated
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advises
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https://pagure.io/freeipa/issue/7036
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Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
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Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
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---
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ipaserver/advise/base.py | 49 ++++++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 49 insertions(+)
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diff --git a/ipaserver/advise/base.py b/ipaserver/advise/base.py
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index ba412b872472580cd32baf2a326a14edb951cab1..639fd1807f72f11f46136999c4ce4c6eec6b3698 100644
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--- a/ipaserver/advise/base.py
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+++ b/ipaserver/advise/base.py
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@@ -76,6 +76,55 @@ As a result, you can redirect the advice's output directly to a script file.
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"""
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+class _IndentationTracker(object):
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+ """
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+ A simple wrapper that tracks the indentation level of the generated bash
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+ commands
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+ """
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+ def __init__(self, spaces_per_indent=0):
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+ if spaces_per_indent <= 0:
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+ raise ValueError(
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+ "Indentation increments cannot be zero or negative")
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+ self.spaces_per_indent = spaces_per_indent
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+ self._indentation_stack = []
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+ self._total_indentation_level = 0
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+
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+ @property
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+ def indentation_string(self):
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+ """
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+ return a string containing number of spaces corresponding to
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+ indentation level
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+ """
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+ return " " * self._total_indentation_level
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+
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+ def indent(self):
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+ """
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+ track a single indentation of the generated code
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+ """
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+ self._indentation_stack.append(self.spaces_per_indent)
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+ self._recompute_indentation_level()
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+
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+ def _recompute_indentation_level(self):
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+ """
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+ Track total indentation level of the generated code
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+ """
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+ self._total_indentation_level = sum(self._indentation_stack)
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+
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+ def dedent(self):
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+ """
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+ track a single dedentation of the generated code
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+ dedents that would result in zero or negative indentation level will be
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+ ignored
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+ """
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+ try:
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+ self._indentation_stack.pop()
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+ except IndexError:
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+ # can not dedent any further
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+ pass
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+
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+ self._recompute_indentation_level()
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+
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+
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class _AdviceOutput(object):
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def __init__(self):
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--
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2.9.4
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