#!/bin/sh
#
-#
-. git-sh-setup || die "Not a git archive"
+# Copyright (c) 2005, 2006 Junio C Hamano
-files=$(git-diff-index --cached --name-only HEAD) || exit
-if [ "$files" ]; then
- echo "Dirty index: cannot apply patches (dirty: $files)" >&2
- exit 1
-fi
+USAGE='[--signoff] [--dotest=<dir>] [--utf8] [--binary] [--3way]
+ [--interactive] [--whitespace=<option>] <mbox>...
+ or, when resuming [--skip | --resolved]'
+. git-sh-setup
-usage () {
- echo >&2 "usage: $0 [--signoff] [--dotest=<dir>] [--utf8] [--3way] <mbox>"
- echo >&2 " or, when resuming"
- echo >&2 " $0 [--skip]"
- exit 1;
-}
+git var GIT_COMMITTER_IDENT >/dev/null || exit
stop_here () {
echo "$1" >"$dotest/next"
exit 1
}
+stop_here_user_resolve () {
+ if [ -n "$resolvemsg" ]; then
+ echo "$resolvemsg"
+ stop_here $1
+ fi
+ cmdline=$(basename $0)
+ if test '' != "$interactive"
+ then
+ cmdline="$cmdline -i"
+ fi
+ if test '' != "$threeway"
+ 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\"."
+
+ stop_here $1
+}
+
go_next () {
rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
"$dotest/patch" "$dotest/info"
this=$next
}
+cannot_fallback () {
+ echo "$1"
+ echo "Cannot fall back to three-way merge."
+ exit 1
+}
+
fall_back_3way () {
O_OBJECT=`cd "$GIT_OBJECT_DIRECTORY" && pwd`
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="$O_OBJECT" \
- git-apply --index <../patch
- )
+ git-apply -z --index-info "$dotest/patch" \
+ >"$dotest/patch-merge-index-info" &&
+ GIT_INDEX_FILE="$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 >"$dotest/patch-merge-base+" ||
+ cannot_fallback "Patch does not record usable index information."
+
+ echo Using index info to reconstruct a base tree...
+ if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
+ git-apply $binary --cached <"$dotest/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 "$base" &&
- git-apply --index &&
- mv ../patch-merge-tmp-index ../patch-merge-index &&
- echo "$base" >../patch-merge-base
- ) <"$dotest/patch" 2>/dev/null && break
- done
+ cannot_fallback "Did you hand edit your patch?
+It does not apply to blobs recorded in its index."
fi
test -f "$dotest/patch-merge-index" &&
# 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,
+ # patch did not touch, so resolve ends up canceling them,
# saying that we reverted all those changes.
git-merge-resolve $orig_tree -- HEAD $his_tree || {
+ if test -d "$GIT_DIR/rr-cache"
+ then
+ git-rerere
+ fi
echo Failed to merge in the changes.
exit 1
}
}
prec=4
-dotest=.dotest sign= utf8= keep= skip= interactive=
+rloga=am
+dotest=.dotest sign= utf8= keep= skip= interactive= resolved= binary= ws= resolvemsg=
while case "$#" in 0) break;; esac
do
case "$1" in
-d=*|--d=*|--do=*|--dot=*|--dote=*|--dotes=*|--dotest=*)
- dotest=`expr "$1" : '-[^=]*=\(.*\)'`; shift ;;
+ dotest=`expr "z$1" : 'z-[^=]*=\(.*\)'`; shift ;;
-d|--d|--do|--dot|--dote|--dotes|--dotest)
case "$#" in 1) usage ;; esac; shift
dotest="$1"; shift;;
--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)
-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 ;;
+ --whitespace=*)
+ ws=$1; shift ;;
+
+ --resolvemsg=*)
+ resolvemsg=$(echo "$1" | sed -e "s/^--resolvemsg=//"); shift ;;
+
+ --reflog-action=*)
+ rloga=`expr "z$1" : 'z-[^=]*=\(.*\)'`; shift ;;
+
--)
shift; 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 "$dotest/next") &&
if test -d "$dotest"
then
- test ",$#," = ",0," ||
+ case "$#,$skip$resolved" in
+ 0,*t*)
+ # Explicit resume command and we do not have file, so
+ # we are happy.
+ : ;;
+ 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
+ # unreliable -- stdin could be /dev/null for example
+ # and the caller did not intend to feed us a patch but
+ # wanted to continue unattended.
+ tty -s
+ ;;
+ *)
+ false
+ ;;
+ esac ||
die "previous dotest directory $dotest still exists but mbox given."
resume=yes
else
- # Make sure we are not given --skip
- test ",$skip," = ,, ||
- die "we are not resuming."
+ # Make sure we are not given --skip nor --resolved
+ test ",$skip,$resolved," = ,,, ||
+ die "Resolve operation not in progress, we are not resuming."
# Start afresh.
mkdir -p "$dotest" || exit
- # cat does the right thing for us, including '-' to mean
- # standard input.
- cat "$@" |
- git-mailsplit -d$prec "$dotest/" >"$dotest/last" || {
+ git-mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" || {
rm -fr "$dotest"
exit 1
}
+ # -b, -s, -u, -k and --whitespace flags are kept for the
+ # 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 >"$dotest/next"
fi
+case "$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 "$dotest/utf8")" = t
then
utf8=-u
then
keep=-k
fi
+ws=`cat "$dotest/whitespace"`
if test "$(cat "$dotest/sign")" = t
then
SIGNOFF=`git-var GIT_COMMITTER_IDENT | sed -e '
if test "$skip" = t
then
this=`expr "$this" + 1`
+ resume=
fi
if test "$this" -gt "$last"
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" "$dotest/patch" \
GIT_AUTHOR_NAME="$(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' "$dotest/info")"
fi
} >"$dotest/final-commit"
;;
+ *)
+ case "$resolved$interactive" in
+ tt)
+ # This is used only for interactive view option.
+ git-diff-index -p --cached HEAD >"$dotest/patch"
+ ;;
+ esac
esac
resume=
echo "--------------------------"
cat "$dotest/final-commit"
echo "--------------------------"
- echo -n "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
+ printf "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
read reply
case "$reply" in
[yY]*) action=yes ;;
echo "Applying '$SUBJECT'"
echo
- git-apply --index "$dotest/patch"; apply_status=$?
+ case "$resolved" in
+ '')
+ git-apply $binary --index $ws "$dotest/patch"
+ apply_status=$?
+ ;;
+ t)
+ # Resolved means the user did all the hard work, and
+ # we do not have to do any patch application. Just
+ # trust what the user has in the index file and the
+ # working tree.
+ resolved=
+ changed="$(git-diff-index --cached --name-only HEAD)"
+ if test '' = "$changed"
+ then
+ echo "No changes - did you forget update-index?"
+ stop_here_user_resolve $this
+ fi
+ unmerged=$(git-ls-files -u)
+ if test -n "$unmerged"
+ then
+ echo "You still have unmerged paths in your index"
+ echo "did you forget update-index?"
+ stop_here_user_resolve $this
+ fi
+ 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="$(git-diff-index --cached --name-only -z HEAD)"
+ changed="$(git-diff-index --cached --name-only HEAD)"
if test '' = "$changed"
then
echo No changes -- Patch already applied.
if test $apply_status != 0
then
echo Patch failed at $msgnum.
- stop_here $this
+ stop_here_user_resolve $this
fi
if test -x "$GIT_DIR"/hooks/pre-applypatch
parent=$(git-rev-parse --verify HEAD) &&
commit=$(git-commit-tree $tree -p $parent <"$dotest/final-commit") &&
echo Committed: $commit &&
- git-update-ref HEAD $commit $parent ||
+ git-update-ref -m "$rloga: $SUBJECT" HEAD $commit $parent ||
stop_here $this
if test -x "$GIT_DIR"/hooks/post-applypatch