PaperMC/scripts/applyPatches.sh
Zach Brown cf82968f35 Apply workaround for patch application on Windows (#1122)
This is not a perfect workaround but it seems to be the best solution
for the moment.

On Windows, this means that when a patch fails to apply, you would now
need to fix that patch, finish the apply (AM), then rebuild all patches,
and then finally re-run the patch apply procedure in order to continue.

This adds a small amount of overhead compared to the traditional method
(which will still work on *nix environments, including WSL). However, it
seems preferable to the build not working on Windows at all.
2018-05-16 20:41:10 -05:00

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#!/usr/bin/env bash
(
PS1="$"
basedir="$(cd "$1" && pwd -P)"
workdir="$basedir/work"
gpgsign="$(git config commit.gpgsign || echo "false")"
applycmd="git am --3way --ignore-whitespace"
# Windows detection to workaround ARG_MAX limitation
windows="$([[ "$OSTYPE" == "cygwin" || "$OSTYPE" == "msys" ]] && echo "true" || echo "false")"
echo "Rebuilding Forked projects.... "
function applyPatch {
what=$1
what_name=$(basename "$what")
target=$2
branch=$3
cd "$basedir/$what"
git fetch
git branch -f upstream "$branch" >/dev/null
cd "$basedir"
if [ ! -d "$basedir/$target" ]; then
git clone "$what" "$target"
fi
cd "$basedir/$target"
# Disable GPG signing before AM, slows things down and doesn't play nicely.
# There is also zero rational or logical reason to do so for these sub-repo AMs.
# Calm down kids, it's re-enabled (if needed) immediately after, pass or fail.
git config commit.gpgsign false
echo "Resetting $target to $what_name..."
git remote rm upstream > /dev/null 2>&1
git remote add upstream "$basedir/$what" >/dev/null 2>&1
git checkout master 2>/dev/null || git checkout -b master
git fetch upstream >/dev/null 2>&1
git reset --hard upstream/upstream
echo " Applying patches to $target..."
git am --abort >/dev/null 2>&1
# Special case Windows handling because of ARG_MAX constraint
if [[ $windows == "true" ]]; then
echo " Using workaround for Windows ARG_MAX constraint"
find "$basedir/${what_name}-Patches/"*.patch -print0 | xargs -0 $applycmd
else
$applycmd "$basedir/${what_name}-Patches/"*.patch
fi
if [ "$?" != "0" ]; then
echo " Something did not apply cleanly to $target."
echo " Please review above details and finish the apply then"
echo " save the changes with rebuildPatches.sh"
# On Windows, finishing the patch apply will only fix the latest patch
# users will need to rebuild from that point and then re-run the patch
# process to continue
if [[ $windows == "true" ]]; then
echo ""
echo " Because you're on Windows you'll need to finish the AM,"
echo " rebuild all patches, and then re-run the patch apply again."
echo " Consider using the scripts with Windows Subsystem for Linux."
fi
exit 1
else
echo " Patches applied cleanly to $target"
fi
}
function enableCommitSigningIfNeeded {
if [[ "$gpgsign" == "true" ]]; then
git config commit.gpgsign true
fi
}
# Move into spigot dir
cd "$workdir/Spigot"
basedir=$(pwd)
# Apply Spigot
(
applyPatch ../Bukkit Spigot-API HEAD &&
applyPatch ../CraftBukkit Spigot-Server patched
) || (
echo "Failed to apply Spigot Patches"
enableCommitSigningIfNeeded
exit 1
) || exit 1
# Move out of Spigot
basedir="$1"
cd "$basedir"
echo "Importing MC Dev"
./scripts/importmcdev.sh "$basedir" >/dev/null 2>&1
# Apply paper
cd "$basedir"
(
applyPatch "work/Spigot/Spigot-API" Paper-API HEAD &&
applyPatch "work/Spigot/Spigot-Server" Paper-Server HEAD
enableCommitSigningIfNeeded
) || (
echo "Failed to apply Paper Patches"
enableCommitSigningIfNeeded
exit 1
) || exit 1
)