gistfile1.sh

#!/bin/sh
#
# git-create-review
# Generates a diff based on a grep in the comments of the commits

REV_NUMS=`git log --grep=$1 --oneline -i --reverse | awk '{print $1;}'`

for revhash in $REV_NUMS; do
    PREV_SVN_REV=`git svn find-rev $revhash^`
    SVN_REV=`git svn find-rev $revhash`

    git diff --no-prefix $revhash^..$revhash |
    sed -e "/^diff --git [^[:space:]]*/{h;}" \
    -e "s/^diff --git [^[:space:]]*/Index:/" \
    -e "s/^index.*/===================================================================/" \
    -e "/^new file .*/d" \
    -e "/^--- \/dev\/null/{g;}" \
    -e "s/^diff --git [^[:space:]]*/-+-/" \
    -e "s/^+++ .*/&\t(revision $SVN_REV)/" -e "s/^--- .*/&\t(revision $PREV_SVN_REV)/" -e "s/^-+- .*/&\t(revision 0)/" \
    -e "s/^-+- [[:space:]]*/--- /"

done