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#!/bin/sh
OPTIONS_KEEPDASHDASH=
OPTIONS_SPEC="\
git quiltimport [options]
--
n,dry-run dry run
author= author name and email address for patches without any
patches= path to the quilt series and patches
"
SUBDIRECTORY_ON=Yes
. git-sh-setup

dry_run=""
quilt_author=""
while test $# != 0
do
case "$1" in
--author)
shift
quilt_author="$1"
;;
-n|--dry-run)
dry_run=1
;;
--patches)
shift
QUILT_PATCHES="$1"
;;
--)
shift
break;;
*)
usage
;;
esac
shift
done

# Quilt Author
if [ -n "$quilt_author" ] ; then
quilt_author_name=$(expr "z$quilt_author" : 'z\(.*[^ ]\) *<.*') &&
quilt_author_email=$(expr "z$quilt_author" : '.*<\([^>]*\)') &&
test '' != "$quilt_author_name" &&
test '' != "$quilt_author_email" ||
die "malformed --author parameter"
fi

# Quilt patch directory
: ${QUILT_PATCHES:=patches}
if ! [ -d "$QUILT_PATCHES" ] ; then
echo "The \"$QUILT_PATCHES\" directory does not exist."
exit 1
fi

# Temporary directories
tmp_dir="$GIT_DIR"/rebase-apply
tmp_msg="$tmp_dir/msg"
tmp_patch="$tmp_dir/patch"
tmp_info="$tmp_dir/info"


# Find the intial commit
commit=$(git rev-parse HEAD)

mkdir $tmp_dir || exit 2
while read patch_name level garbage <&3
do
case "$patch_name" in ''|'#'*) continue;; esac
case "$level" in
-p*) ;;
''|'#'*)
level=;;
*)
echo "unable to parse patch level, ignoring it."
level=;;
esac
case "$garbage" in
''|'#'*);;
*)
echo "trailing garbage found in series file: $garbage"
exit 1;;
esac
if ! [ -f "$QUILT_PATCHES/$patch_name" ] ; then
echo "$patch_name doesn't exist. Skipping."
continue
fi
echo $patch_name
git mailinfo "$tmp_msg" "$tmp_patch" \
<"$QUILT_PATCHES/$patch_name" >"$tmp_info" || exit 3
test -s "$tmp_patch" || {
echo "Patch is empty. Was it split wrong?"
exit 1
}

# Parse the author information
GIT_AUTHOR_NAME=$(sed -ne 's/Author: //p' "$tmp_info")
GIT_AUTHOR_EMAIL=$(sed -ne 's/Email: //p' "$tmp_info")
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL
while test -z "$GIT_AUTHOR_EMAIL" && test -z "$GIT_AUTHOR_NAME" ; do
if [ -n "$quilt_author" ] ; then
GIT_AUTHOR_NAME="$quilt_author_name";
GIT_AUTHOR_EMAIL="$quilt_author_email";
elif [ -n "$dry_run" ]; then
echo "No author found in $patch_name" >&2;
GIT_AUTHOR_NAME="dry-run-not-found";
GIT_AUTHOR_EMAIL="dry-run-not-found";
else
echo "No author found in $patch_name" >&2;
echo "---"
cat $tmp_msg
printf "Author: ";
read patch_author

echo "$patch_author"

patch_author_name=$(expr "z$patch_author" : 'z\(.*[^ ]\) *<.*') &&
patch_author_email=$(expr "z$patch_author" : '.*<\([^>]*\)') &&
test '' != "$patch_author_name" &&
test '' != "$patch_author_email" &&
GIT_AUTHOR_NAME="$patch_author_name" &&
GIT_AUTHOR_EMAIL="$patch_author_email"
fi
done
GIT_AUTHOR_DATE=$(sed -ne 's/Date: //p' "$tmp_info")
SUBJECT=$(sed -ne 's/Subject: //p' "$tmp_info")
export GIT_AUTHOR_DATE SUBJECT
if [ -z "$SUBJECT" ] ; then
SUBJECT=$(echo $patch_name | sed -e 's/.patch$//')
fi

if [ -z "$dry_run" ] ; then
git apply --index -C1 ${level:+"$level"} "$tmp_patch" &&
tree=$(git write-tree) &&
commit=$( (echo "$SUBJECT"; echo; cat "$tmp_msg") | git commit-tree $tree -p $commit) &&
git update-ref -m "quiltimport: $patch_name" HEAD $commit || exit 4
fi
done 3<"$QUILT_PATCHES/series"
rm -rf $tmp_dir || exit 5
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