Git subcommand for moving/renaming paths using sed/perl expressions

README.md

Save file as git-mvs in your path and then:

find -name '*file' -print0 | xargs -r0 git mvs 's/foo/bar/g'

or in zsh:

git mvs 's/foo/bar/g' **/*file

When run against a git tree like this:

/
├ /foodir
│ ├ /foofile
│ └ /otherfile
└ /otherdir
  ├ /foofile
  └ /otherfile

then the result is:

/
├ /bardir
│ ├ /barfile
│ └ /otherfile
└ /otherdir
  ├ /barfile
  └ /otherfile

git-mvs.sh

#!/bin/bash

if [ $# -lt 1 ]; then
    echo usage: "$0 <perl> [<file1> ...]"
    exit 1
fi

sed="$1"
shift

try () {
    if ! "$@" ; then
	echo ERROR!!
	exit 1
    fi
}

for old ; do
    new="`echo -n $old | perl -pe "$sed"`"
    if [ "$old" = "$new" ]; then
	echo "Filename unchanged: $old"
    else
	echo "$old -> $new"
	mkdir -p "`dirname \"$new\"`"
	try git mv "$old" "$new"
	rmdir -p "`dirname \"$old\"`"
    fi
done