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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.
# Prints filename changes.
#
# <weekday> <month> <day> <time> <year> <author_first_name> <author_last_name> <original_filename> <new_filename> <%>
# * `git log --reverse`
# - Show commit logs in reverse order.
# * `--find-renames`
# - Find file renames.
# * `--name-status`
# - Show only names.
# * `--diff-filter R`
# - Only select files which are renamed (R).
# * `--format=format:""`
# - Format the log.
# * `--date=format:""`
# - Format the date.
# * `awk '{}'
# - Process each commit.
git log \
--reverse \
--find-renames \
--name-status \
--diff-filter R \
--format=format:"%ad %aN" \
--date=format:"%a %b %d %T %Y" \
| awk '
# Skip empty lines:
NF == 0 {
next
}
# Date lines:
! /^R/ {
date = $0
next
}
# Filename changes:
{
pct = substr($1, 2)
# Remove leading zeros...
if (match(pct, /^0[1-9]/)) {
pct = substr(pct, 2)
} else if (match(pct, /^00[1-9]/)) {
pct = substr(pct, 2)
} else if (match(pct, /^000/)) {
pct = 0
}
print date OFS $2 OFS $3 OFS pct
}
'
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