mirror of
https://github.com/git/git.git
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2d56a13643
When you are in the middle of "git rebase", "git am --abort" by mistake would have referred to nonexistent ORIG_HEAD and barfed, or worse yet, used a stale ORIG_HEAD and taken you to an unexpected commit. Also the option parsing did not reject "git am --abort --skip". Signed-off-by: Junio C Hamano <gitster@pobox.com>
571 lines
13 KiB
Bash
Executable File
571 lines
13 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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SUBDIRECTORY_OK=Yes
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OPTIONS_KEEPDASHDASH=
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OPTIONS_SPEC="\
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git am [options] [<mbox>|<Maildir>...]
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git am [options] (--resolved | --skip | --abort)
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--
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i,interactive run interactively
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b,binary* (historical option -- no-op)
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3,3way allow fall back on 3way merging if needed
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s,signoff add a Signed-off-by line to the commit message
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u,utf8 recode into utf8 (default)
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k,keep pass -k flag to git-mailinfo
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whitespace= pass it through git-apply
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directory= pass it through git-apply
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C= pass it through git-apply
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p= pass it through git-apply
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reject pass it through git-apply
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resolvemsg= override error message when patch failure occurs
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r,resolved to be used after a patch failure
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skip skip the current patch
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abort restore the original branch and abort the patching operation.
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committer-date-is-author-date lie about committer date
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ignore-date use current timestamp for author date
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rebasing* (internal use for git-rebase)"
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. git-sh-setup
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prefix=$(git rev-parse --show-prefix)
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set_reflog_action am
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require_work_tree
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cd_to_toplevel
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git var GIT_COMMITTER_IDENT >/dev/null ||
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die "You need to set your committer info first"
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sq () {
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for sqarg
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do
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printf "%s" "$sqarg" |
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sed -e 's/'\''/'\''\\'\'''\''/g' -e 's/.*/ '\''&'\''/'
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done
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}
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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 "$resolvemsg" ]; then
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printf '%s\n' "$resolvemsg"
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stop_here $1
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fi
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cmdline="git am"
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if test '' != "$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="$cmdline -3"
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fi
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echo "When you have resolved this problem run \"$cmdline --resolved\"."
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echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
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echo "To restore the original branch and stop patching run \"$cmdline --abort\"."
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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 --build-fake-ancestor "$dotest/patch-merge-tmp-index" \
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"$dotest/patch" &&
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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 "Repository lacks necessary blobs to fall back on 3-way merge."
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echo Using index info to reconstruct a base tree...
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if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
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git apply --cached <"$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_$his_tree='"$FIRSTLINE"'
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export GITHEAD_$his_tree
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git-merge-recursive $orig_tree -- HEAD $his_tree || {
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git rerere
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echo Failed to merge in the changes.
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exit 1
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}
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unset GITHEAD_$his_tree
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}
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prec=4
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dotest="$GIT_DIR/rebase-apply"
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sign= utf8=t keep= skip= interactive= resolved= rebasing= abort=
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resolvemsg= resume=
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git_apply_opt=
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committer_date_is_author_date=
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ignore_date=
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while test $# != 0
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do
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case "$1" in
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-i|--interactive)
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interactive=t ;;
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-b|--binary)
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: ;;
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-3|--3way)
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threeway=t ;;
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-s|--signoff)
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sign=t ;;
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-u|--utf8)
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utf8=t ;; # this is now default
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--no-utf8)
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utf8= ;;
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-k|--keep)
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keep=t ;;
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-r|--resolved)
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resolved=t ;;
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--skip)
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skip=t ;;
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--abort)
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abort=t ;;
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--rebasing)
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rebasing=t threeway=t keep=t ;;
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-d|--dotest)
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die "-d option is no longer supported. Do not use."
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;;
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--resolvemsg)
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shift; resolvemsg=$1 ;;
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--whitespace|--directory)
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git_apply_opt="$git_apply_opt $(sq "$1=$2")"; shift ;;
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-C|-p)
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git_apply_opt="$git_apply_opt $(sq "$1$2")"; shift ;;
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--reject)
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git_apply_opt="$git_apply_opt $1" ;;
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--committer-date-is-author-date)
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committer_date_is_author_date=t ;;
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--ignore-date)
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ignore_date=t ;;
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--)
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shift; break ;;
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*)
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usage ;;
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esac
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shift
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done
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# If the dotest directory exists, but we have finished applying all the
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# patches in them, clear it out.
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if test -d "$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$abort" 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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test -t 0
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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 rebase directory $dotest still exists but mbox given."
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resume=yes
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case "$skip,$abort" in
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t,t)
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die "Please make up your mind. --skip or --abort?"
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;;
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t,)
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git rerere clear
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git read-tree --reset -u HEAD HEAD
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orig_head=$(cat "$GIT_DIR/ORIG_HEAD")
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git reset HEAD
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git update-ref ORIG_HEAD $orig_head
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;;
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,t)
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if test -f "$dotest/rebasing"
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then
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exec git rebase --abort
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fi
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git rerere clear
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test -f "$dotest/dirtyindex" || {
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git read-tree --reset -u HEAD ORIG_HEAD
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git reset ORIG_HEAD
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}
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rm -fr "$dotest"
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exit ;;
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esac
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rm -f "$dotest/dirtyindex"
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else
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# Make sure we are not given --skip, --resolved, nor --abort
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test "$skip$resolved$abort" = "" ||
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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 "$dotest" || exit
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if test -n "$prefix" && test $# != 0
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then
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first=t
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for arg
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do
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test -n "$first" && {
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set x
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first=
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}
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case "$arg" in
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/*)
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set "$@" "$arg" ;;
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*)
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set "$@" "$prefix$arg" ;;
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esac
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done
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shift
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fi
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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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# -s, -u, -k, --whitespace, -3, -C and -p flags are kept
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# for the resuming session after a patch failure.
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# -i can and must be given when resuming.
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echo " $git_apply_opt" >"$dotest/apply-opt"
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echo "$threeway" >"$dotest/threeway"
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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 >"$dotest/next"
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if test -n "$rebasing"
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then
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: >"$dotest/rebasing"
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else
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: >"$dotest/applying"
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git update-ref ORIG_HEAD HEAD
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fi
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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 test "$files"
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then
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: >"$dotest/dirtyindex"
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die "Dirty index: cannot apply patches (dirty: $files)"
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fi
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esac
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if test "$(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 "$dotest/keep")" = t
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then
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keep=-k
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fi
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if test "$(cat "$dotest/threeway")" = t
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then
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threeway=t
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fi
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git_apply_opt=$(cat "$dotest/apply-opt")
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if test "$(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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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 $this
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# skip pine's internal folder data
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grep '^Author: Mail System Internal Data$' \
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<"$dotest"/info >/dev/null &&
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go_next && continue
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test -s "$dotest/patch" || {
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echo "Patch is empty. Was it split wrong?"
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stop_here $this
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}
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if test -f "$dotest/rebasing" &&
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commit=$(sed -e 's/^From \([0-9a-f]*\) .*/\1/' \
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-e q "$dotest/$msgnum") &&
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test "$(git cat-file -t "$commit")" = commit
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then
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git cat-file commit "$commit" |
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sed -e '1,/^$/d' >"$dotest/msg-clean"
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else
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SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")"
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case "$keep_subject" in -k) SUBJECT="[PATCH] $SUBJECT" ;; esac
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(printf '%s\n\n' "$SUBJECT"; cat "$dotest/msg") |
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git stripspace > "$dotest/msg-clean"
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fi
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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 $this
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fi
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export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
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case "$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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sed -ne '$p'
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`
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ADD_SIGNOFF=`
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test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || {
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test '' = "$LAST_SIGNED_OFF_BY" && echo
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echo "$SIGNOFF"
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}`
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else
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ADD_SIGNOFF=
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fi
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{
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if test -s "$dotest/msg-clean"
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then
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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 "$reply" in
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[yY]*) action=yes ;;
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[aA]*) action=yes interactive= ;;
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[nN]*) action=skip ;;
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[eE]*) git_editor "$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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FIRSTLINE=$(sed 1q "$dotest/final-commit")
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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 $this
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fi
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printf 'Applying: %s\n' "$FIRSTLINE"
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case "$resolved" in
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'')
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eval 'git apply '"$git_apply_opt"' --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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git diff-index --quiet --cached HEAD -- && {
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echo "No changes - did you forget to use 'git add'?"
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stop_here_user_resolve $this
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}
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unmerged=$(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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git rerere
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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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git diff-index --quiet --cached HEAD -- && {
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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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}
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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 $apply_status != 0
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then
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printf 'Patch failed at %s %s\n' "$msgnum" "$FIRSTLINE"
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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
|
|
then
|
|
"$GIT_DIR"/hooks/pre-applypatch || stop_here $this
|
|
fi
|
|
|
|
tree=$(git write-tree) &&
|
|
parent=$(git rev-parse --verify HEAD) &&
|
|
commit=$(
|
|
if test -n "$ignore_date"
|
|
then
|
|
GIT_AUTHOR_DATE=
|
|
fi
|
|
if test -n "$committer_date_is_author_date"
|
|
then
|
|
GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE"
|
|
export GIT_COMMITTER_DATE
|
|
fi &&
|
|
git commit-tree $tree -p $parent <"$dotest/final-commit"
|
|
) &&
|
|
git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent ||
|
|
stop_here $this
|
|
|
|
if test -x "$GIT_DIR"/hooks/post-applypatch
|
|
then
|
|
"$GIT_DIR"/hooks/post-applypatch
|
|
fi
|
|
|
|
go_next
|
|
done
|
|
|
|
git gc --auto
|
|
|
|
rm -fr "$dotest"
|