#!/bin/bash

log_file=../akpm-import.log

log()
{
	echo "$@" | tee -a $log_file
}

execute()
{
	log "$" $@
	"$@" 2>&1 | tee -a $log_file
	[ ${PIPESTATUS[0]} -eq 0 ] || $SHELL -i || exit 1
}

name="akpm"
mmotm="../../mmotm/text"
sfile="$mmotm/series"
cpwd=$(pwd)

base=$(sed -n '1s/^GIT *\([^ ]*\).*$/\1/p' "$mmotm/broken-out/origin.patch")
nbase=$(sed -n '1s/^GIT *\([^ ]*\).*$/\1/p' "$mmotm/broken-out/linux-next.patch")
log "Importing $name based on $base/$nbase"
git rev-parse --verify "$base" >/dev/null || {
	log "Unknown origin BASE"
	exit 1
}
git rev-parse --verify "$nbase" >/dev/null || {
	log "Unknown linux-next BASE"
	exit 1
}

[ -d "../quilt-tmp" ] ||
	execute git clone -s -l -n -q . ../quilt-tmp

log '$' cd ../quilt-tmp
cd ../quilt-tmp
execute git reset --hard "$base"
git branch current-base

sed_exp='/NEXT_PATCHES_START/,/NEXT_PATCHES_END/{s/[ \t]*#.*$//;/^[ \t]*$/!p;};/^linux-next.patch/p'
patches=$(sed -n "$sed_exp" "$sfile")

for f in $patches; do
	[ "$f" = "origin.patch" ] && continue
	[ "$f" = "linux-next.patch" ] && {
		git branch current
		execute git merge --no-edit --no-stat "$nbase"
		git branch master-base
		continue
	}
	execute git am --patch-format=mbox "$mmotm/broken-out/$f"
done

log '$' cd $cpwd
cd $cpwd

execute git fetch -f ../quilt-tmp current:"$name/current"
execute git fetch -f ../quilt-tmp current-base:"$name/current-base"
execute git fetch -f ../quilt-tmp master:"$name/master"
execute git fetch -f ../quilt-tmp master-base:"$name/master-base"

rm -rf ../quilt-tmp

exit 0