PaperMC/rebuildPatches.sh

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#!/bin/bash
basedir=`pwd`
echo "Rebuilding patch files from current fork state..."
function cleanupPatches {
cd $1
for patch in *.patch; do
gitver=$(tail -n 2 $patch | grep -ve "^$" | tail -n 1)
diffs=$(git diff --staged $patch | grep -E "^(\+|\-)" | grep -Ev "(From [a-z0-9]{32,}|\-\-\- a|\+\+\+ b|.index)")
testver=$(echo "$diffs" | tail -n 2 | grep -ve "^$" | tail -n 1 | grep "$gitver")
if [ "x$testver" != "x" ]; then
diffs=$(echo "$diffs" | head -n -2)
fi
if [ "x$diffs" == "x" ] ; then
git reset HEAD $patch >/dev/null
git checkout -- $patch >/dev/null
fi
done
}
function savePatches {
what=$1
target=$2
cd $basedir/$target/
git format-patch -N -o $basedir/${what}-Patches/ upstream/upstream
cd $basedir
git add $basedir/${what}-Patches
cleanupPatches $basedir/${what}-Patches
echo " Patches saved for $what to $what-Patches/"
}
savePatches Bukkit Spigot-API
savePatches CraftBukkit Spigot