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executable file 410 lines (361 sloc) 9.777 kb
#!/bin/sh
#
#
USAGE='[--signoff] [--dotest=<dir>] [--utf8] [--binary] [--3way] <mbox>
or, when resuming [--skip | --resolved]'
. git-sh-setup
stop_here () {
echo "$1" >"$dotest/next"
exit 1
}
go_next () {
rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
"$dotest/patch" "$dotest/info"
echo "$next" >"$dotest/next"
this=$next
}
fall_back_3way () {
O_OBJECT=`cd "$GIT_OBJECT_DIRECTORY" && pwd`
rm -fr "$dotest"/patch-merge-*
mkdir "$dotest/patch-merge-tmp-dir"
# First see if the patch records the index info that we can use.
if git-apply -z --index-info "$dotest/patch" \
>"$dotest/patch-merge-index-info" 2>/dev/null &&
GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
git-update-index -z --index-info <"$dotest/patch-merge-index-info" &&
GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
git-write-tree >"$dotest/patch-merge-base+" &&
# index has the base tree now.
(
cd "$dotest/patch-merge-tmp-dir" &&
GIT_INDEX_FILE="../patch-merge-tmp-index" \
GIT_OBJECT_DIRECTORY="$O_OBJECT" \
git-apply $binary --index <../patch
)
then
echo Using index info to reconstruct a base tree...
mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
else
# Otherwise, try nearby trees that can be used to apply the
# patch.
(
N=10
# Hoping the patch is against our recent commits...
git-rev-list --max-count=$N HEAD
# or hoping the patch is against known tags...
git-ls-remote --tags .
) |
while read base junk
do
# See if we have it as a tree...
git-cat-file tree "$base" >/dev/null 2>&1 || continue
rm -fr "$dotest"/patch-merge-* &&
mkdir "$dotest/patch-merge-tmp-dir" || break
(
cd "$dotest/patch-merge-tmp-dir" &&
GIT_INDEX_FILE=../patch-merge-tmp-index &&
GIT_OBJECT_DIRECTORY="$O_OBJECT" &&
export GIT_INDEX_FILE GIT_OBJECT_DIRECTORY &&
git-read-tree "$base" &&
git-apply $binary --index &&
mv ../patch-merge-tmp-index ../patch-merge-index &&
echo "$base" >../patch-merge-base
) <"$dotest/patch" 2>/dev/null && break
done
fi
test -f "$dotest/patch-merge-index" &&
his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git-write-tree) &&
orig_tree=$(cat "$dotest/patch-merge-base") &&
rm -fr "$dotest"/patch-merge-* || exit 1
echo Falling back to patching base and 3-way merge...
# This is not so wrong. Depending on which base we picked,
# orig_tree may be wildly different from ours, but his_tree
# has the same set of wildly different changes in parts the
# patch did not touch, so resolve ends up cancelling them,
# saying that we reverted all those changes.
git-merge-resolve $orig_tree -- HEAD $his_tree || {
echo Failed to merge in the changes.
exit 1
}
}
prec=4
dotest=.dotest sign= utf8= keep= skip= interactive= resolved= binary=
while case "$#" in 0) break;; esac
do
case "$1" in
-d=*|--d=*|--do=*|--dot=*|--dote=*|--dotes=*|--dotest=*)
dotest=`expr "$1" : '-[^=]*=\(.*\)'`; shift ;;
-d|--d|--do|--dot|--dote|--dotes|--dotest)
case "$#" in 1) usage ;; esac; shift
dotest="$1"; shift;;
-i|--i|--in|--int|--inte|--inter|--intera|--interac|--interact|\
--interacti|--interactiv|--interactive)
interactive=t; shift ;;
-b|--b|--bi|--bin|--bina|--binar|--binary)
binary=t; shift ;;
-3|--3|--3w|--3wa|--3way)
threeway=t; shift ;;
-s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
sign=t; shift ;;
-u|--u|--ut|--utf|--utf8)
utf8=t; shift ;;
-k|--k|--ke|--kee|--keep)
keep=t; shift ;;
-r|--r|--re|--res|--reso|--resol|--resolv|--resolve|--resolved)
resolved=t; shift ;;
--sk|--ski|--skip)
skip=t; shift ;;
--)
shift; break ;;
-*)
usage ;;
*)
break ;;
esac
done
# If the dotest directory exists, but we have finished applying all the
# patches in them, clear it out.
if test -d "$dotest" &&
last=$(cat "$dotest/last") &&
next=$(cat "$dotest/next") &&
test $# != 0 &&
test "$next" -gt "$last"
then
rm -fr "$dotest"
fi
if test -d "$dotest"
then
test ",$#," = ",0," ||
die "previous dotest directory $dotest still exists but mbox given."
resume=yes
else
# Make sure we are not given --skip nor --resolved
test ",$skip,$resolved," = ,,, ||
die "we are not resuming."
# Start afresh.
mkdir -p "$dotest" || exit
git-mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" || {
rm -fr "$dotest"
exit 1
}
# -b, -s, -u and -k flags are kept for the resuming session after
# a patch failure.
# -3 and -i can and must be given when resuming.
echo "$binary" >"$dotest/binary"
echo "$sign" >"$dotest/sign"
echo "$utf8" >"$dotest/utf8"
echo "$keep" >"$dotest/keep"
echo 1 >"$dotest/next"
fi
case "$resolved" in
'')
files=$(git-diff-index --cached --name-only HEAD) || exit
if [ "$files" ]; then
echo "Dirty index: cannot apply patches (dirty: $files)" >&2
exit 1
fi
esac
if test "$(cat "$dotest/binary")" = t
then
binary=--allow-binary-replacement
fi
if test "$(cat "$dotest/utf8")" = t
then
utf8=-u
fi
if test "$(cat "$dotest/keep")" = t
then
keep=-k
fi
if test "$(cat "$dotest/sign")" = t
then
SIGNOFF=`git-var GIT_COMMITTER_IDENT | sed -e '
s/>.*/>/
s/^/Signed-off-by: /'
`
else
SIGNOFF=
fi
last=`cat "$dotest/last"`
this=`cat "$dotest/next"`
if test "$skip" = t
then
this=`expr "$this" + 1`
resume=
fi
if test "$this" -gt "$last"
then
echo Nothing to do.
rm -fr "$dotest"
exit
fi
while test "$this" -le "$last"
do
msgnum=`printf "%0${prec}d" $this`
next=`expr "$this" + 1`
test -f "$dotest/$msgnum" || {
resume=
go_next
continue
}
# If we are not resuming, parse and extract the patch information
# into separate files:
# - info records the authorship and title
# - msg is the rest of commit log message
# - patch is the patch body.
#
# When we are resuming, these files are either already prepared
# by the user, or the user can tell us to do so by --resolved flag.
case "$resume" in
'')
git-mailinfo $keep $utf8 "$dotest/msg" "$dotest/patch" \
<"$dotest/$msgnum" >"$dotest/info" ||
stop_here $this
git-stripspace < "$dotest/msg" > "$dotest/msg-clean"
;;
esac
GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
if test -z "$GIT_AUTHOR_EMAIL"
then
echo "Patch does not have a valid e-mail address."
stop_here $this
fi
export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")"
case "$keep_subject" in -k) SUBJECT="[PATCH] $SUBJECT" ;; esac
case "$resume" in
'')
if test '' != "$SIGNOFF"
then
LAST_SIGNED_OFF_BY=`
sed -ne '/^Signed-off-by: /p' \
"$dotest/msg-clean" |
tail -n 1
`
ADD_SIGNOFF=`
test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
test '' = "$LAST_SIGNED_OFF_BY" && echo
echo "$SIGNOFF"
}`
else
ADD_SIGNOFF=
fi
{
echo "$SUBJECT"
if test -s "$dotest/msg-clean"
then
echo
cat "$dotest/msg-clean"
fi
if test '' != "$ADD_SIGNOFF"
then
echo "$ADD_SIGNOFF"
fi
} >"$dotest/final-commit"
;;
*)
case "$resolved,$interactive" in
tt)
# This is used only for interactive view option.
git-diff-index -p --cached HEAD >"$dotest/patch"
;;
esac
esac
resume=
if test "$interactive" = t
then
test -t 0 ||
die "cannot be interactive without stdin connected to a terminal."
action=again
while test "$action" = again
do
echo "Commit Body is:"
echo "--------------------------"
cat "$dotest/final-commit"
echo "--------------------------"
printf "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
read reply
case "$reply" in
[yY]*) action=yes ;;
[aA]*) action=yes interactive= ;;
[nN]*) action=skip ;;
[eE]*) "${VISUAL:-${EDITOR:-vi}}" "$dotest/final-commit"
action=again ;;
[vV]*) action=again
LESS=-S ${PAGER:-less} "$dotest/patch" ;;
*) action=again ;;
esac
done
else
action=yes
fi
if test $action = skip
then
go_next
continue
fi
if test -x "$GIT_DIR"/hooks/applypatch-msg
then
"$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
stop_here $this
fi
echo
echo "Applying '$SUBJECT'"
echo
case "$resolved" in
'')
git-apply $binary --index "$dotest/patch"
apply_status=$?
;;
t)
# Resolved means the user did all the hard work, and
# we do not have to do any patch application. Just
# trust what the user has in the index file and the
# working tree.
resolved=
apply_status=0
;;
esac
if test $apply_status = 1 && test "$threeway" = t
then
if (fall_back_3way)
then
# Applying the patch to an earlier tree and merging the
# result may have produced the same tree as ours.
changed="$(git-diff-index --cached --name-only -z HEAD)"
if test '' = "$changed"
then
echo No changes -- Patch already applied.
go_next
continue
fi
# clear apply_status -- we have successfully merged.
apply_status=0
fi
fi
if test $apply_status != 0
then
echo Patch failed at $msgnum.
stop_here $this
fi
if test -x "$GIT_DIR"/hooks/pre-applypatch
then
"$GIT_DIR"/hooks/pre-applypatch || stop_here $this
fi
tree=$(git-write-tree) &&
echo Wrote tree $tree &&
parent=$(git-rev-parse --verify HEAD) &&
commit=$(git-commit-tree $tree -p $parent <"$dotest/final-commit") &&
echo Committed: $commit &&
git-update-ref HEAD $commit $parent ||
stop_here $this
if test -x "$GIT_DIR"/hooks/post-applypatch
then
"$GIT_DIR"/hooks/post-applypatch
fi
go_next
done
rm -fr "$dotest"
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