PaperMC/scripts/rebuildPatches.sh
Aikar fa72a71601
Remove useless hashes from patches
This avoids annoying conflicts as well as gets rid of diff noise
from clients preferring different hash lengths
2018-10-18 22:37:06 -04:00

73 lines
2.7 KiB
Bash
Executable file

#!/usr/bin/env bash
(
PS1="$"
basedir="$(cd "$1" && pwd -P)"
workdir="$basedir/work"
source "$basedir/scripts/functions.sh"
gitcmd="git -c commit.gpgsign=false -c core.safecrlf=false"
echo "Rebuilding patch files from current fork state..."
function cleanupPatches {
cd "$1"
for patch in *.patch; do
sed -ri 's/index [a-f0-9]+\.\.[a-f0-9]+/index 7ac07ac07ac0..7ac07ac07ac0/g' "$patch"
sed -ri 's/^From [a-f0-9]{32,}/From 7ac07ac07ac07ac07ac07ac07ac07ac07ac07ac0/g' "$patch"
$gitcmd add -A $patch
gitver=$(tail -n 2 "$patch" | grep -ve "^$" | tail -n 1)
diffs=$($gitcmd diff --staged "$patch" | grep --color=none -E "^(\+|\-)" | grep --color=none -Ev "(From [a-f0-9]{32,}|\-\-\- a|\+\+\+ b|^.index)")
testver=$(echo "$diffs" | tail -n 2 | grep --color=none -ve "^$" | tail -n 1 | grep --color=none "$gitver")
if [ "x$testver" != "x" ]; then
diffs=$(echo "$diffs" | sed 'N;$!P;$!D;$d')
fi
if [ "x$diffs" == "x" ] ; then
$gitcmd reset HEAD "$patch" >/dev/null
$gitcmd checkout -- "$patch" >/dev/null
fi
done
}
function savePatches {
what=$1
what_name=$(basename "$what")
target=$2
echo "Formatting patches for $what..."
cd "$basedir/${what_name}-Patches/"
if [ -d "$basedir/$target/.git/rebase-apply" ]; then
# in middle of a rebase, be smarter
echo "REBASE DETECTED - PARTIAL SAVE"
last=$(cat "$basedir/$target/.git/rebase-apply/last")
next=$(cat "$basedir/$target/.git/rebase-apply/next")
orderedfiles=$(find . -name "*.patch" | sort)
for i in $(seq -f "%04g" 1 1 $last)
do
if [ $i -lt $next ]; then
rm $(echo "$orderedfiles{@}" | sed -n "${i}p")
fi
done
else
rm -rf *.patch
fi
cd "$basedir/$target"
$gitcmd format-patch --no-stat -N -o "$basedir/${what_name}-Patches/" upstream/upstream >/dev/null
cd "$basedir"
$gitcmd add -A "$basedir/${what_name}-Patches"
cleanupPatches "$basedir/${what_name}-Patches"
echo " Patches saved for $what to $what_name-Patches/"
}
savePatches "$workdir/Spigot/Spigot-API" "Paper-API"
if [ -f "$basedir/Paper-API/.git/patch-apply-failed" ]; then
echo "$(color 1 31)[[[ WARNING ]]] $(color 1 33)- Not saving Paper-Server as it appears Paper-API did not apply clean.$(colorend)"
echo "$(color 1 33)If this is a mistake, delete $(color 1 34)Paper-API/.git/patch-apply-failed$(color 1 33) and run rebuild again.$(colorend)"
echo "$(color 1 33)Otherwise, rerun ./paper patch to have a clean Paper-API apply so the latest Paper-Server can build.$(colorend)"
else
savePatches "$workdir/Spigot/Spigot-Server" "Paper-Server"
fi
) || exit 1