126 lines
4.7 KiB
Python
126 lines
4.7 KiB
Python
# coding: utf-8
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#
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# Copyright © 2012-2017 Ejwa Software. All rights reserved.
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#
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# This file is part of gitinspector.
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#
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# gitinspector is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# gitinspector is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with gitinspector. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import unicode_literals
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import re
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import subprocess
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from .changes import FileDiff
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from . import comment, filtering, interval
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__metric_eloc__ = {"java": 500, "c": 500, "cpp": 500, "cs": 500, "h": 300, "hpp": 300, "php": 500, "py": 500, "glsl": 1000,
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"rb": 500, "js": 500, "sql": 1000, "xml": 1000}
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__metric_cc_tokens__ = [[["java", "js", "c", "cc", "cpp"], ["else", r"for\s+\(.*\)", r"if\s+\(.*\)", r"case\s+\w+:",
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"default:", r"while\s+\(.*\)"],
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["assert", "break", "continue", "return"]],
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[["cs"], ["else", r"for\s+\(.*\)", r"foreach\s+\(.*\)", r"goto\s+\w+:", r"if\s+\(.*\)", r"case\s+\w+:",
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"default:", r"while\s+\(.*\)"],
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["assert", "break", "continue", "return"]],
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[["py"], [r"^\s+elif .*:$", r"^\s+else:$", r"^\s+for .*:", r"^\s+if .*:$", r"^\s+while .*:$"],
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[r"^\s+assert", "break", "continue", "return"]]]
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METRIC_CYCLOMATIC_COMPLEXITY_THRESHOLD = 50
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METRIC_CYCLOMATIC_COMPLEXITY_DENSITY_THRESHOLD = 0.75
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class MetricsLogic(object):
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def __init__(self):
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self.eloc = {}
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self.cyclomatic_complexity = {}
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self.cyclomatic_complexity_density = {}
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ls_tree_p = subprocess.Popen(["git", "ls-tree", "--name-only", "-r", interval.get_ref()], bufsize=1,
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stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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lines = ls_tree_p.communicate()[0].splitlines()
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ls_tree_p.stdout.close()
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if ls_tree_p.returncode == 0:
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for i in lines:
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i = i.strip().decode("unicode_escape", "ignore")
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i = i.encode("latin-1", "replace")
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i = i.decode("utf-8", "replace").strip("\"").strip("'").strip()
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if FileDiff.is_valid_extension(i) and not filtering.set_filtered(FileDiff.get_filename(i)):
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file_r = subprocess.Popen(["git", "show", interval.get_ref() + ":{0}".format(i.strip())],
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bufsize=1, stdout=subprocess.PIPE).stdout.readlines()
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extension = FileDiff.get_extension(i)
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lines = MetricsLogic.get_eloc(file_r, extension)
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cycc = MetricsLogic.get_cyclomatic_complexity(file_r, extension)
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if __metric_eloc__.get(extension, None) != None and __metric_eloc__[extension] < lines:
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self.eloc[i.strip()] = lines
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if METRIC_CYCLOMATIC_COMPLEXITY_THRESHOLD < cycc:
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self.cyclomatic_complexity[i.strip()] = cycc
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if lines > 0 and METRIC_CYCLOMATIC_COMPLEXITY_DENSITY_THRESHOLD < cycc / float(lines):
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self.cyclomatic_complexity_density[i.strip()] = cycc / float(lines)
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def __iadd__(self, other):
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try:
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self.eloc.update(other.eloc)
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self.cyclomatic_complexity.update(other.cyclomatic_complexity)
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self.cyclomatic_complexity_density.update(other.cyclomatic_complexity_density)
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return self
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except AttributeError:
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return other;
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@staticmethod
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def get_cyclomatic_complexity(file_r, extension):
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is_inside_comment = False
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cc_counter = 0
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entry_tokens = None
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exit_tokens = None
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for i in __metric_cc_tokens__:
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if extension in i[0]:
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entry_tokens = i[1]
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exit_tokens = i[2]
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if entry_tokens or exit_tokens:
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for i in file_r:
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i = i.decode("utf-8", "replace")
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(_, is_inside_comment) = comment.handle_comment_block(is_inside_comment, extension, i)
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if not is_inside_comment and not comment.is_comment(extension, i):
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for j in entry_tokens:
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if re.search(j, i, re.DOTALL):
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cc_counter += 2
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for j in exit_tokens:
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if re.search(j, i, re.DOTALL):
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cc_counter += 1
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return cc_counter
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return -1
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@staticmethod
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def get_eloc(file_r, extension):
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is_inside_comment = False
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eloc_counter = 0
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for i in file_r:
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i = i.decode("utf-8", "replace")
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(_, is_inside_comment) = comment.handle_comment_block(is_inside_comment, extension, i)
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if not is_inside_comment and not comment.is_comment(extension, i):
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eloc_counter += 1
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return eloc_counter
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