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ben-wpan/scripts/gitenealogy
Werner Almesberger d7d95ff2da Allow schhist2web and friends to run from a directory outside the working tree.
- scripts/gitenealogy: now requires the repository directory to be passed
- scripts/schhist2web: adapted for above change
- scripts/schhist2web: change to the repository's directory before each
  call to git
- scripts/Makefile: added demo upload and Xue build
- scripts/Makefile (all): added usage information
2010-08-27 19:32:52 -03:00

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#!/bin/sh
#
# gitenealogy - Trace the ancestry of a file in git across renames
#
# Written 2010 by Werner Almesberger
# Copyright 2010 Werner Almesberger
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
usage()
{
cat <<EOF 2>&1
usage: $0 repo-dir path
The file to trace must be at repo-dir/path
EOF
exit 1
}
if [ -z "$2" -o ! -z "$3" ]; then
usage
fi
if [ ! -d "$1" -o ! -d "$1/.git" ]; then
echo "no git repository at $1" 1>&2
exit 1
fi
if [ ! -f "$1/$2" ]; then
echo "cannot find $2" 2>&1
exit 1
fi
cd "$1" || exit
git log --follow --name-status "$2" |
awk '
/^commit /{ if (c) print c, n; c = $2 }
{ if (NF) n = $(NF) }
END { if (c) print c, n; }'