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-rwxr-xr-xgit-am.sh141
1 files changed, 94 insertions, 47 deletions
diff --git a/git-am.sh b/git-am.sh
index 5f0f241ad0..aa602618e6 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -2,31 +2,36 @@
#
# Copyright (c) 2005, 2006 Junio C Hamano
+SUBDIRECTORY_OK=Yes
OPTIONS_KEEPDASHDASH=
OPTIONS_SPEC="\
-git-am [options] <mbox>|<Maildir>...
-git-am [options] --resolved
-git-am [options] --skip
+git am [options] [<mbox>|<Maildir>...]
+git am [options] (--resolved | --skip | --abort)
--
-d,dotest= use <dir> and not .dotest
+d,dotest= (removed -- do not use)
i,interactive run interactively
-b,binary pass --allo-binary-replacement to git-apply
+b,binary (historical option -- no-op)
3,3way allow fall back on 3way merging if needed
s,signoff add a Signed-off-by line to the commit message
u,utf8 recode into utf8 (default)
-k,keep pass -k flagg to git-mailinfo
+k,keep pass -k flag to git-mailinfo
whitespace= pass it through git-apply
C= pass it through git-apply
p= pass it through git-apply
resolvemsg= override error message when patch failure occurs
r,resolved to be used after a patch failure
-skip skip the current patch"
+skip skip the current patch
+abort restore the original branch and abort the patching operation.
+rebasing (internal use for git-rebase)"
. git-sh-setup
+prefix=$(git rev-parse --show-prefix)
set_reflog_action am
require_work_tree
+cd_to_toplevel
-git var GIT_COMMITTER_IDENT >/dev/null || exit
+git var GIT_COMMITTER_IDENT >/dev/null ||
+ die "You need to set your committer info first"
stop_here () {
echo "$1" >"$dotest/next"
@@ -38,7 +43,7 @@ stop_here_user_resolve () {
printf '%s\n' "$resolvemsg"
stop_here $1
fi
- cmdline=$(basename $0)
+ cmdline="git am"
if test '' != "$interactive"
then
cmdline="$cmdline -i"
@@ -47,12 +52,9 @@ stop_here_user_resolve () {
then
cmdline="$cmdline -3"
fi
- if test '.dotest' != "$dotest"
- then
- cmdline="$cmdline -d=$dotest"
- fi
echo "When you have resolved this problem run \"$cmdline --resolved\"."
echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
+ echo "To restore the original branch and stop patching run \"$cmdline --abort\"."
stop_here $1
}
@@ -85,7 +87,7 @@ fall_back_3way () {
echo Using index info to reconstruct a base tree...
if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
- git apply $binary --cached <"$dotest/patch"
+ git apply --cached <"$dotest/patch"
then
mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
@@ -107,7 +109,7 @@ It does not apply to blobs recorded in its index."
# patch did not touch, so recursive ends up canceling them,
# saying that we reverted all those changes.
- eval GITHEAD_$his_tree='"$SUBJECT"'
+ eval GITHEAD_$his_tree='"$FIRSTLINE"'
export GITHEAD_$his_tree
git-merge-recursive $orig_tree -- HEAD $his_tree || {
git rerere
@@ -117,12 +119,9 @@ It does not apply to blobs recorded in its index."
unset GITHEAD_$his_tree
}
-reread_subject () {
- git stripspace <"$1" | sed -e 1q
-}
-
prec=4
-dotest=.dotest sign= utf8=t keep= skip= interactive= resolved= binary=
+dotest="$GIT_DIR/rebase-apply"
+sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
resolvemsg= resume=
git_apply_opt=
@@ -132,7 +131,7 @@ do
-i|--interactive)
interactive=t ;;
-b|--binary)
- binary=t ;;
+ : ;;
-3|--3way)
threeway=t ;;
-s|--signoff)
@@ -147,8 +146,13 @@ do
resolved=t ;;
--skip)
skip=t ;;
+ --abort)
+ abort=t ;;
+ --rebasing)
+ rebasing=t threeway=t keep=t ;;
-d|--dotest)
- shift; dotest=$1;;
+ die "-d option is no longer supported. Do not use."
+ ;;
--resolvemsg)
shift; resolvemsg=$1 ;;
--whitespace)
@@ -176,7 +180,7 @@ fi
if test -d "$dotest"
then
- case "$#,$skip$resolved" in
+ case "$#,$skip$resolved$abort" in
0,*t*)
# Explicit resume command and we do not have file, so
# we are happy.
@@ -184,7 +188,7 @@ then
0,)
# No file input but without resume parameters; catch
# user error to feed us a patch from standard input
- # when there is already .dotest. This is somewhat
+ # when there is already $dotest. This is somewhat
# unreliable -- stdin could be /dev/null for example
# and the caller did not intend to feed us a patch but
# wanted to continue unattended.
@@ -194,30 +198,70 @@ then
false
;;
esac ||
- die "previous dotest directory $dotest still exists but mbox given."
+ die "previous rebase directory $dotest still exists but mbox given."
resume=yes
+
+ case "$skip,$abort" in
+ t,)
+ git rerere clear
+ git read-tree --reset -u HEAD HEAD
+ orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
+ git reset HEAD
+ git update-ref ORIG_HEAD $orig_head
+ ;;
+ ,t)
+ git rerere clear
+ git read-tree --reset -u HEAD ORIG_HEAD
+ git reset ORIG_HEAD
+ rm -fr "$dotest"
+ exit ;;
+ esac
else
- # Make sure we are not given --skip nor --resolved
- test ",$skip,$resolved," = ,,, ||
+ # Make sure we are not given --skip, --resolved, nor --abort
+ test "$skip$resolved$abort" = "" ||
die "Resolve operation not in progress, we are not resuming."
# Start afresh.
mkdir -p "$dotest" || exit
+ if test -n "$prefix" && test $# != 0
+ then
+ first=t
+ for arg
+ do
+ test -n "$first" && {
+ set x
+ first=
+ }
+ case "$arg" in
+ /*)
+ set "$@" "$arg" ;;
+ *)
+ set "$@" "$prefix$arg" ;;
+ esac
+ done
+ shift
+ fi
git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" || {
rm -fr "$dotest"
exit 1
}
- # -b, -s, -u, -k and --whitespace flags are kept for the
+ # -s, -u, -k and --whitespace flags are kept for the
# resuming session after a patch failure.
# -3 and -i can and must be given when resuming.
- echo "$binary" >"$dotest/binary"
echo " $ws" >"$dotest/whitespace"
echo "$sign" >"$dotest/sign"
echo "$utf8" >"$dotest/utf8"
echo "$keep" >"$dotest/keep"
echo 1 >"$dotest/next"
+ if test -n "$rebasing"
+ then
+ : >"$dotest/rebasing"
+ else
+ : >"$dotest/applying"
+ git update-ref ORIG_HEAD HEAD
+ fi
fi
case "$resolved" in
@@ -229,10 +273,6 @@ case "$resolved" in
fi
esac
-if test "$(cat "$dotest/binary")" = t
-then
- binary=--allow-binary-replacement
-fi
if test "$(cat "$dotest/utf8")" = t
then
utf8=-u
@@ -246,7 +286,7 @@ fi
ws=`cat "$dotest/whitespace"`
if test "$(cat "$dotest/sign")" = t
then
- SIGNOFF=`git-var GIT_COMMITTER_IDENT | sed -e '
+ SIGNOFF=`git var GIT_COMMITTER_IDENT | sed -e '
s/>.*/>/
s/^/Signed-off-by: /'
`
@@ -258,7 +298,6 @@ last=`cat "$dotest/last"`
this=`cat "$dotest/next"`
if test "$skip" = t
then
- git rerere clear
this=`expr "$this" + 1`
resume=
fi
@@ -299,11 +338,24 @@ do
<"$dotest"/info >/dev/null &&
go_next && continue
- test -s $dotest/patch || {
+ test -s "$dotest/patch" || {
echo "Patch is empty. Was it split wrong?"
stop_here $this
}
- git stripspace < "$dotest/msg" > "$dotest/msg-clean"
+ if test -f "$dotest/rebasing" &&
+ commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
+ -e q "$dotest/$msgnum") &&
+ test "$(git cat-file -t "$commit")" = commit
+ then
+ git cat-file commit "$commit" |
+ sed -e '1,/^$/d' >"$dotest/msg-clean"
+ else
+ SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")"
+ case "$keep_subject" in -k) SUBJECT="[PATCH] $SUBJECT" ;; esac
+
+ (printf '%s\n\n' "$SUBJECT"; cat "$dotest/msg") |
+ git stripspace > "$dotest/msg-clean"
+ fi
;;
esac
@@ -319,9 +371,6 @@ do
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 '' != "$SIGNOFF"
@@ -329,7 +378,7 @@ do
LAST_SIGNED_OFF_BY=`
sed -ne '/^Signed-off-by: /p' \
"$dotest/msg-clean" |
- tail -n 1
+ sed -ne '$p'
`
ADD_SIGNOFF=`
test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
@@ -340,10 +389,8 @@ do
ADD_SIGNOFF=
fi
{
- printf '%s\n' "$SUBJECT"
if test -s "$dotest/msg-clean"
then
- echo
cat "$dotest/msg-clean"
fi
if test '' != "$ADD_SIGNOFF"
@@ -380,7 +427,6 @@ do
[aA]*) action=yes interactive= ;;
[nN]*) action=skip ;;
[eE]*) git_editor "$dotest/final-commit"
- SUBJECT=$(reread_subject "$dotest/final-commit")
action=again ;;
[vV]*) action=again
LESS=-S ${PAGER:-less} "$dotest/patch" ;;
@@ -390,6 +436,7 @@ do
else
action=yes
fi
+ FIRSTLINE=$(sed 1q "$dotest/final-commit")
if test $action = skip
then
@@ -403,11 +450,11 @@ do
stop_here $this
fi
- printf 'Applying %s\n' "$SUBJECT"
+ printf 'Applying: %s\n' "$FIRSTLINE"
case "$resolved" in
'')
- git apply $git_apply_opt $binary --index "$dotest/patch"
+ git apply $git_apply_opt --index "$dotest/patch"
apply_status=$?
;;
t)
@@ -461,7 +508,7 @@ do
tree=$(git write-tree) &&
parent=$(git rev-parse --verify HEAD) &&
commit=$(git commit-tree $tree -p $parent <"$dotest/final-commit") &&
- git update-ref -m "$GIT_REFLOG_ACTION: $SUBJECT" HEAD $commit $parent ||
+ git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
stop_here $this
if test -x "$GIT_DIR"/hooks/post-applypatch