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commit_size_distribution
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executable file
·46 lines (42 loc) · 1.35 KB
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#!/usr/bin/env bash
#
# @license Apache-2.0
#
# Copyright (c) 2017 The Stdlib Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Computes a commit size distribution.
#
# References:
#
# - Riehle, Dirk, Carsten Kolassa, and Michel A. Salim. 2012. "Developer Belief vs. Reality: The Case of the Commit Size Distribution." _Software Engineering 2012, GI-Edition Lecture Notes in Informatics_ abs/1408.4644: 59–70. <http://arxiv.org/abs/1408.4644>.
# Determine root directory:
root="$(git rev-parse --show-toplevel)"
# Define the path to a utility to compute commit sizes:
commit_sizes="${root}/tools/git/scripts/commit_sizes"
# * `commit_sizes`
# - Get commit sizes.
# * `awk '{}'`
# - Generate distribution.
# * `sort -n`
# - Sort in numeric order.
"${commit_sizes}" | awk '
{
sizes[$1] += 1
}
END {
for (s in sizes) {
print s OFS sizes[s]
}
}
' | sort -n