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https://github.com/git/git
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2092a1fefd
This is originally from Andy Parkins whose patch used --patchdepth; let's use -p which is more in line with the underlying git-apply. Signed-off-by: Junio C Hamano <junkio@cox.net>
472 lines
11 KiB
Bash
Executable file
472 lines
11 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005, 2006 Junio C Hamano
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USAGE='[--signoff] [--dotest=<dir>] [--utf8 | --no-utf8] [--binary] [--3way]
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[--interactive] [--whitespace=<option>] [-C<n>] [-p<n>] <mbox>...
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or, when resuming [--skip | --resolved]'
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. git-sh-setup
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set_reflog_action am
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require_work_tree
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git var GIT_COMMITTER_IDENT >/dev/null || exit
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stop_here () {
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echo "$1" >"$dotest/next"
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exit 1
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}
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stop_here_user_resolve () {
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if [ -n "$resolvemsg" ]; then
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echo "$resolvemsg"
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stop_here $1
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fi
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cmdline=$(basename $0)
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if test '' != "$interactive"
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then
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cmdline="$cmdline -i"
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fi
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if test '' != "$threeway"
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then
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cmdline="$cmdline -3"
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fi
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if test '.dotest' != "$dotest"
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then
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cmdline="$cmdline -d=$dotest"
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fi
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echo "When you have resolved this problem run \"$cmdline --resolved\"."
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echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
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stop_here $1
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}
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go_next () {
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rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
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"$dotest/patch" "$dotest/info"
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echo "$next" >"$dotest/next"
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this=$next
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}
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cannot_fallback () {
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echo "$1"
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echo "Cannot fall back to three-way merge."
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exit 1
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}
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fall_back_3way () {
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O_OBJECT=`cd "$GIT_OBJECT_DIRECTORY" && pwd`
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rm -fr "$dotest"/patch-merge-*
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mkdir "$dotest/patch-merge-tmp-dir"
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# First see if the patch records the index info that we can use.
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git-apply -z --index-info "$dotest/patch" \
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>"$dotest/patch-merge-index-info" &&
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GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
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git-update-index -z --index-info <"$dotest/patch-merge-index-info" &&
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GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
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git-write-tree >"$dotest/patch-merge-base+" ||
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cannot_fallback "Patch does not record usable index information."
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echo Using index info to reconstruct a base tree...
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if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
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git-apply $binary --cached <"$dotest/patch"
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then
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mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
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mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
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else
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cannot_fallback "Did you hand edit your patch?
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It does not apply to blobs recorded in its index."
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fi
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test -f "$dotest/patch-merge-index" &&
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his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git-write-tree) &&
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orig_tree=$(cat "$dotest/patch-merge-base") &&
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rm -fr "$dotest"/patch-merge-* || exit 1
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echo Falling back to patching base and 3-way merge...
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# This is not so wrong. Depending on which base we picked,
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# orig_tree may be wildly different from ours, but his_tree
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# has the same set of wildly different changes in parts the
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# patch did not touch, so recursive ends up canceling them,
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# saying that we reverted all those changes.
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eval GITHEAD_$his_tree='"$SUBJECT"'
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export GITHEAD_$his_tree
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git-merge-recursive $orig_tree -- HEAD $his_tree || {
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if test -d "$GIT_DIR/rr-cache"
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then
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git-rerere
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fi
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echo Failed to merge in the changes.
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exit 1
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}
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unset GITHEAD_$his_tree
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}
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prec=4
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dotest=.dotest sign= utf8=t keep= skip= interactive= resolved= binary= resolvemsg=
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git_apply_opt=
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while case "$#" in 0) break;; esac
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do
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case "$1" in
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-d=*|--d=*|--do=*|--dot=*|--dote=*|--dotes=*|--dotest=*)
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dotest=`expr "z$1" : 'z-[^=]*=\(.*\)'`; shift ;;
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-d|--d|--do|--dot|--dote|--dotes|--dotest)
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case "$#" in 1) usage ;; esac; shift
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dotest="$1"; shift;;
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-i|--i|--in|--int|--inte|--inter|--intera|--interac|--interact|\
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--interacti|--interactiv|--interactive)
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interactive=t; shift ;;
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-b|--b|--bi|--bin|--bina|--binar|--binary)
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binary=t; shift ;;
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-3|--3|--3w|--3wa|--3way)
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threeway=t; shift ;;
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-s|--s|--si|--sig|--sign|--signo|--signof|--signoff)
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sign=t; shift ;;
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-u|--u|--ut|--utf|--utf8)
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utf8=t; shift ;; # this is now default
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--no-u|--no-ut|--no-utf|--no-utf8)
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utf8=; shift ;;
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-k|--k|--ke|--kee|--keep)
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keep=t; shift ;;
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-r|--r|--re|--res|--reso|--resol|--resolv|--resolve|--resolved)
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resolved=t; shift ;;
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--sk|--ski|--skip)
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skip=t; shift ;;
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--whitespace=*|-C*|-p*)
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git_apply_opt="$git_apply_opt $1"; shift ;;
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--resolvemsg=*)
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resolvemsg=$(echo "$1" | sed -e "s/^--resolvemsg=//"); shift ;;
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--)
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shift; break ;;
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-*)
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usage ;;
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*)
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break ;;
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esac
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done
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# If the dotest directory exists, but we have finished applying all the
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# patches in them, clear it out.
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if test -d "$dotest" &&
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last=$(cat "$dotest/last") &&
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next=$(cat "$dotest/next") &&
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test $# != 0 &&
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test "$next" -gt "$last"
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then
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rm -fr "$dotest"
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fi
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if test -d "$dotest"
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then
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case "$#,$skip$resolved" in
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0,*t*)
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# Explicit resume command and we do not have file, so
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# we are happy.
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: ;;
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0,)
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# No file input but without resume parameters; catch
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# user error to feed us a patch from standard input
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# when there is already .dotest. This is somewhat
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# unreliable -- stdin could be /dev/null for example
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# and the caller did not intend to feed us a patch but
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# wanted to continue unattended.
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tty -s
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;;
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*)
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false
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;;
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esac ||
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die "previous dotest directory $dotest still exists but mbox given."
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resume=yes
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else
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# Make sure we are not given --skip nor --resolved
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test ",$skip,$resolved," = ,,, ||
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die "Resolve operation not in progress, we are not resuming."
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# Start afresh.
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mkdir -p "$dotest" || exit
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git-mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" || {
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rm -fr "$dotest"
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exit 1
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}
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# -b, -s, -u, -k and --whitespace flags are kept for the
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# resuming session after a patch failure.
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# -3 and -i can and must be given when resuming.
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echo "$binary" >"$dotest/binary"
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echo " $ws" >"$dotest/whitespace"
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echo "$sign" >"$dotest/sign"
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echo "$utf8" >"$dotest/utf8"
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echo "$keep" >"$dotest/keep"
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echo 1 >"$dotest/next"
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fi
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case "$resolved" in
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'')
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files=$(git-diff-index --cached --name-only HEAD) || exit
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if [ "$files" ]; then
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echo "Dirty index: cannot apply patches (dirty: $files)" >&2
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exit 1
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fi
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esac
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if test "$(cat "$dotest/binary")" = t
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then
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binary=--allow-binary-replacement
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fi
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if test "$(cat "$dotest/utf8")" = t
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then
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utf8=-u
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else
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utf8=-n
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fi
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if test "$(cat "$dotest/keep")" = t
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then
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keep=-k
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fi
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ws=`cat "$dotest/whitespace"`
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if test "$(cat "$dotest/sign")" = t
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then
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SIGNOFF=`git-var GIT_COMMITTER_IDENT | sed -e '
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s/>.*/>/
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s/^/Signed-off-by: /'
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`
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else
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SIGNOFF=
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fi
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last=`cat "$dotest/last"`
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this=`cat "$dotest/next"`
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if test "$skip" = t
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then
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if test -d "$GIT_DIR/rr-cache"
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then
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git-rerere clear
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fi
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this=`expr "$this" + 1`
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resume=
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fi
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if test "$this" -gt "$last"
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then
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echo Nothing to do.
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rm -fr "$dotest"
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exit
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fi
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while test "$this" -le "$last"
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do
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msgnum=`printf "%0${prec}d" $this`
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next=`expr "$this" + 1`
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test -f "$dotest/$msgnum" || {
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resume=
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go_next
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continue
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}
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# If we are not resuming, parse and extract the patch information
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# into separate files:
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# - info records the authorship and title
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# - msg is the rest of commit log message
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# - patch is the patch body.
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#
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# When we are resuming, these files are either already prepared
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# by the user, or the user can tell us to do so by --resolved flag.
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case "$resume" in
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'')
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git-mailinfo $keep $utf8 "$dotest/msg" "$dotest/patch" \
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<"$dotest/$msgnum" >"$dotest/info" ||
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stop_here $this
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git-stripspace < "$dotest/msg" > "$dotest/msg-clean"
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;;
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esac
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GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")"
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GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")"
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GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")"
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if test -z "$GIT_AUTHOR_EMAIL"
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then
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echo "Patch does not have a valid e-mail address."
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stop_here $this
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fi
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export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
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SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")"
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case "$keep_subject" in -k) SUBJECT="[PATCH] $SUBJECT" ;; esac
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case "$resume" in
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'')
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if test '' != "$SIGNOFF"
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then
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LAST_SIGNED_OFF_BY=`
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sed -ne '/^Signed-off-by: /p' \
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"$dotest/msg-clean" |
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tail -n 1
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`
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ADD_SIGNOFF=`
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test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
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test '' = "$LAST_SIGNED_OFF_BY" && echo
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echo "$SIGNOFF"
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}`
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else
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ADD_SIGNOFF=
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fi
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{
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echo "$SUBJECT"
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if test -s "$dotest/msg-clean"
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then
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echo
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cat "$dotest/msg-clean"
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fi
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if test '' != "$ADD_SIGNOFF"
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then
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echo "$ADD_SIGNOFF"
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fi
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} >"$dotest/final-commit"
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;;
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*)
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case "$resolved$interactive" in
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tt)
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# This is used only for interactive view option.
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git-diff-index -p --cached HEAD >"$dotest/patch"
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;;
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esac
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esac
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resume=
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if test "$interactive" = t
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then
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test -t 0 ||
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die "cannot be interactive without stdin connected to a terminal."
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action=again
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while test "$action" = again
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do
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echo "Commit Body is:"
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echo "--------------------------"
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cat "$dotest/final-commit"
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echo "--------------------------"
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printf "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all "
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read reply
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case "$reply" in
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[yY]*) action=yes ;;
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[aA]*) action=yes interactive= ;;
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[nN]*) action=skip ;;
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[eE]*) "${VISUAL:-${EDITOR:-vi}}" "$dotest/final-commit"
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action=again ;;
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[vV]*) action=again
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LESS=-S ${PAGER:-less} "$dotest/patch" ;;
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*) action=again ;;
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esac
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done
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else
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action=yes
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fi
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if test $action = skip
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then
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go_next
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continue
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fi
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if test -x "$GIT_DIR"/hooks/applypatch-msg
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then
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"$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" ||
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stop_here $this
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fi
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echo
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echo "Applying '$SUBJECT'"
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echo
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case "$resolved" in
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'')
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git-apply $git_apply_opt $binary --index "$dotest/patch"
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apply_status=$?
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;;
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t)
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# Resolved means the user did all the hard work, and
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# we do not have to do any patch application. Just
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# trust what the user has in the index file and the
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# working tree.
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resolved=
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changed="$(git-diff-index --cached --name-only HEAD)"
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if test '' = "$changed"
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then
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echo "No changes - did you forget to use 'git add'?"
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stop_here_user_resolve $this
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fi
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unmerged=$(git-ls-files -u)
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if test -n "$unmerged"
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then
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echo "You still have unmerged paths in your index"
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echo "did you forget to use 'git add'?"
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stop_here_user_resolve $this
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fi
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apply_status=0
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if test -d "$GIT_DIR/rr-cache"
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then
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git rerere
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fi
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;;
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esac
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if test $apply_status = 1 && test "$threeway" = t
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then
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if (fall_back_3way)
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then
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# Applying the patch to an earlier tree and merging the
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# result may have produced the same tree as ours.
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changed="$(git-diff-index --cached --name-only HEAD)"
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if test '' = "$changed"
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then
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echo No changes -- Patch already applied.
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go_next
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continue
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fi
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# clear apply_status -- we have successfully merged.
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apply_status=0
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fi
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fi
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if test $apply_status != 0
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then
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echo Patch failed at $msgnum.
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stop_here_user_resolve $this
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fi
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if test -x "$GIT_DIR"/hooks/pre-applypatch
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then
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"$GIT_DIR"/hooks/pre-applypatch || stop_here $this
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fi
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tree=$(git-write-tree) &&
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echo Wrote tree $tree &&
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parent=$(git-rev-parse --verify HEAD) &&
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commit=$(git-commit-tree $tree -p $parent <"$dotest/final-commit") &&
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echo Committed: $commit &&
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git-update-ref -m "$GIT_REFLOG_ACTION: $SUBJECT" HEAD $commit $parent ||
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stop_here $this
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if test -x "$GIT_DIR"/hooks/post-applypatch
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then
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"$GIT_DIR"/hooks/post-applypatch
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fi
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go_next
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done
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rm -fr "$dotest"
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