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Implement git-quiltimport

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Importing a quilt patch series into git is not very difficult
but parsing the patch descriptions and all of the other
minutia take a bit of effort to get right, so this automates it.

Since git and quilt complement each other it makes sense
to make it easy to go back and forth between the two.

If a patch is encountered that it cannot derive the author
from the user is asked.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Eric W. Biederman
2006-05-17 12:44:40 -06:00
committed by Junio C Hamano
parent ff62b7f378
commit d3d8f361a8
3 changed files with 162 additions and 1 deletions
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106
git-quiltimport.sh Executable file
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#!/bin/sh
USAGE='--author <author> --patches </path/to/quilt/patch/directory>'
SUBDIRECTORY_ON=Yes
. git-sh-setup
quilt_author=""
while case "$#" in 0) break;; esac
do
case "$1" in
--au=*|--aut=*|--auth=*|--autho=*|--author=*)
quilt_author=$(expr "$1" : '-[^=]*\(.*\)')
shift
;;
--au|--aut|--auth|--autho|--author)
case "$#" in 1) usage ;; esac
shift
quilt_author="$1"
shift
;;
--pa=*|--pat=*|--patc=*|--patch=*|--patche=*|--patches=*)
QUILT_PATCHES=$(expr "$1" : '-[^=]*\(.*\)')
shift
;;
--pa|--pat|--patc|--patch|--patche|--patches)
case "$#" in 1) usage ;; esac
shift
QUILT_PATCHES="$1"
shift
;;
*)
break
;;
esac
done
# Quilt Author
if [ -n "$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 "malformatted --author parameter"
fi
# Quilt patch directory
: ${QUILT_PATCHES:=patches}
if ! [ -d "$QUILT_PATCHES" ] ; then
echo "The \"$QUILT_PATCHES\" directory does not exist."
exit 1
fi
# Temporay directories
tmp_dir=.dotest
tmp_msg="$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
for patch_name in $(cat "$QUILT_PATCHES/series" | grep -v '^#'); do
echo $patch_name
(cat $QUILT_PATCHES/$patch_name | git-mailinfo "$tmp_msg" "$tmp_patch" > "$tmp_info") || exit 3
# Parse the author information
export GIT_AUTHOR_NAME=$(sed -ne 's/Author: //p' "$tmp_info")
export GIT_AUTHOR_EMAIL=$(sed -ne 's/Email: //p' "$tmp_info")
while test -z "$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";
else
echo "No author found in $patch_name";
echo "---"
cat $tmp_msg
echo -n "Author: ";
read patch_author
echo "$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
export GIT_AUTHOR_DATE=$(sed -ne 's/Date: //p' "$tmp_info")
export SUBJECT=$(sed -ne 's/Subject: //p' "$tmp_info")
if [ -z "$SUBJECT" ] ; then
SUBJECT=$(echo $patch_name | sed -e 's/.patch$//')
fi
git-apply --index -C1 "$tmp_patch" &&
tree=$(git-write-tree) &&
commit=$((echo "$SUBJECT"; echo; cat "$tmp_msg") | git-commit-tree $tree -p $commit) &&
git-update-ref HEAD $commit || exit 4
done
rm -rf $tmp_dir || exit 5