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![Johannes Schindelin](/assets/img/avatar_default.png)
Don't you just hate the fact sometimes, that git-rebase just applies the patches, without any possibility to edit them, or rearrange them? With "--interactive", git-rebase now lets you edit the list of patches, so that you can reorder, edit and delete patches. Such a list will typically look like this: pick deadbee The oneline of this commit pick fa1afe1 The oneline of the next commit ... By replacing the command "pick" with the command "edit", you can amend that patch and/or its commit message, and by replacing it with "squash" you can tell rebase to fold that patch into the patch before that. It is derived from the script sent to the list in <Pine.LNX.4.63.0702252156190.22628@wbgn013.biozentrum.uni-wuerzburg.de> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
372 lines
8.5 KiB
Bash
Executable file
372 lines
8.5 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005 Junio C Hamano.
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#
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USAGE='[--interactive | -i] [-v] [--onto <newbase>] <upstream> [<branch>]'
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LONG_USAGE='git-rebase replaces <branch> with a new branch of the
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same name. When the --onto option is provided the new branch starts
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out with a HEAD equal to <newbase>, otherwise it is equal to <upstream>
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It then attempts to create a new commit for each commit from the original
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<branch> that does not exist in the <upstream> branch.
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It is possible that a merge failure will prevent this process from being
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completely automatic. You will have to resolve any such merge failure
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and run git rebase --continue. Another option is to bypass the commit
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that caused the merge failure with git rebase --skip. To restore the
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original <branch> and remove the .dotest working files, use the command
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git rebase --abort instead.
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Note that if <branch> is not specified on the command line, the
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currently checked out branch is used. You must be in the top
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directory of your project to start (or continue) a rebase.
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Example: git-rebase master~1 topic
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A---B---C topic A'\''--B'\''--C'\'' topic
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/ --> /
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D---E---F---G master D---E---F---G master
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'
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SUBDIRECTORY_OK=Yes
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. git-sh-setup
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set_reflog_action rebase
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require_work_tree
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cd_to_toplevel
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RESOLVEMSG="
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When you have resolved this problem run \"git rebase --continue\".
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If you would prefer to skip this patch, instead run \"git rebase --skip\".
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To restore the original branch and stop rebasing run \"git rebase --abort\".
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"
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unset newbase
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strategy=recursive
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do_merge=
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dotest=$GIT_DIR/.dotest-merge
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prec=4
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verbose=
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git_am_opt=
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continue_merge () {
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test -n "$prev_head" || die "prev_head must be defined"
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test -d "$dotest" || die "$dotest directory does not exist"
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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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die "$RESOLVEMSG"
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fi
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if ! git-diff-index --quiet HEAD
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then
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if ! git-commit -C "`cat $dotest/current`"
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then
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echo "Commit failed, please do not call \"git commit\""
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echo "directly, but instead do one of the following: "
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die "$RESOLVEMSG"
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fi
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printf "Committed: %0${prec}d" $msgnum
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else
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printf "Already applied: %0${prec}d" $msgnum
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fi
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echo ' '`git-rev-list --pretty=oneline -1 HEAD | \
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sed 's/^[a-f0-9]\+ //'`
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prev_head=`git-rev-parse HEAD^0`
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# save the resulting commit so we can read-tree on it later
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echo "$prev_head" > "$dotest/prev_head"
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# onto the next patch:
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msgnum=$(($msgnum + 1))
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echo "$msgnum" >"$dotest/msgnum"
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}
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call_merge () {
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cmt="$(cat $dotest/cmt.$1)"
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echo "$cmt" > "$dotest/current"
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hd=$(git-rev-parse --verify HEAD)
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cmt_name=$(git-symbolic-ref HEAD)
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msgnum=$(cat $dotest/msgnum)
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end=$(cat $dotest/end)
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eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
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eval GITHEAD_$hd='"$(cat $dotest/onto_name)"'
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export GITHEAD_$cmt GITHEAD_$hd
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git-merge-$strategy "$cmt^" -- "$hd" "$cmt"
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rv=$?
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case "$rv" in
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0)
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unset GITHEAD_$cmt GITHEAD_$hd
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return
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;;
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1)
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test -d "$GIT_DIR/rr-cache" && git-rerere
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die "$RESOLVEMSG"
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;;
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2)
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echo "Strategy: $rv $strategy failed, try another" 1>&2
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die "$RESOLVEMSG"
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;;
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*)
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die "Unknown exit code ($rv) from command:" \
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"git-merge-$strategy $cmt^ -- HEAD $cmt"
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;;
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esac
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}
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finish_rb_merge () {
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rm -r "$dotest"
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echo "All done."
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}
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is_interactive () {
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test -f "$dotest"/interactive ||
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while case $#,"$1" in 0,|*,-i|*,--interactive) break ;; esac
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do
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shift
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done && test -n "$1"
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}
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is_interactive "$@" && exec git-rebase--interactive "$@"
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while case "$#" in 0) break ;; esac
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do
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case "$1" in
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--continue)
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git-diff-files --quiet || {
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echo "You must edit all merge conflicts and then"
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echo "mark them as resolved using git add"
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exit 1
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}
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if test -d "$dotest"
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then
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prev_head="`cat $dotest/prev_head`"
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end="`cat $dotest/end`"
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msgnum="`cat $dotest/msgnum`"
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onto="`cat $dotest/onto`"
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continue_merge
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while test "$msgnum" -le "$end"
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do
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call_merge "$msgnum"
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continue_merge
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done
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finish_rb_merge
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exit
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fi
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git am --resolved --3way --resolvemsg="$RESOLVEMSG"
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exit
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;;
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--skip)
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if test -d "$dotest"
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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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prev_head="`cat $dotest/prev_head`"
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end="`cat $dotest/end`"
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msgnum="`cat $dotest/msgnum`"
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msgnum=$(($msgnum + 1))
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onto="`cat $dotest/onto`"
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while test "$msgnum" -le "$end"
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do
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call_merge "$msgnum"
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continue_merge
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done
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finish_rb_merge
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exit
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fi
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git am -3 --skip --resolvemsg="$RESOLVEMSG"
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exit
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;;
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--abort)
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if test -d "$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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if test -d "$dotest"
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then
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rm -r "$dotest"
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elif test -d .dotest
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then
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rm -r .dotest
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else
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die "No rebase in progress?"
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fi
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git reset --hard ORIG_HEAD
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exit
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;;
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--onto)
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test 2 -le "$#" || usage
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newbase="$2"
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shift
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;;
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-M|-m|--m|--me|--mer|--merg|--merge)
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do_merge=t
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;;
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-s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\
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--strateg=*|--strategy=*|\
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-s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy)
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case "$#,$1" in
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*,*=*)
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strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;;
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1,*)
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usage ;;
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*)
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strategy="$2"
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shift ;;
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esac
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do_merge=t
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;;
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-v|--verbose)
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verbose=t
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;;
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-C*)
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git_am_opt=$1
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shift
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;;
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-*)
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usage
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;;
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*)
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break
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;;
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esac
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shift
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done
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# Make sure we do not have .dotest
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if test -z "$do_merge"
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then
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if mkdir .dotest
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then
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rmdir .dotest
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else
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echo >&2 '
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It seems that I cannot create a .dotest directory, and I wonder if you
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are in the middle of patch application or another rebase. If that is not
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the case, please rm -fr .dotest and run me again. I am stopping in case
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you still have something valuable there.'
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exit 1
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fi
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else
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if test -d "$dotest"
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then
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die "previous dotest directory $dotest still exists." \
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'try git-rebase < --continue | --abort >'
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fi
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fi
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# The tree must be really really clean.
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git-update-index --refresh || exit
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diff=$(git-diff-index --cached --name-status -r HEAD)
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case "$diff" in
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?*) echo "cannot rebase: your index is not up-to-date"
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echo "$diff"
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exit 1
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;;
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esac
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# The upstream head must be given. Make sure it is valid.
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upstream_name="$1"
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upstream=`git rev-parse --verify "${upstream_name}^0"` ||
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die "invalid upstream $upstream_name"
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# Make sure the branch to rebase onto is valid.
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onto_name=${newbase-"$upstream_name"}
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onto=$(git-rev-parse --verify "${onto_name}^0") || exit
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# If a hook exists, give it a chance to interrupt
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if test -x "$GIT_DIR/hooks/pre-rebase"
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then
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"$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || {
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echo >&2 "The pre-rebase hook refused to rebase."
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exit 1
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}
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fi
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# If the branch to rebase is given, first switch to it.
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case "$#" in
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2)
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branch_name="$2"
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git-checkout "$2" || usage
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;;
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*)
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if branch_name=`git symbolic-ref -q HEAD`
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then
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branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'`
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else
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branch_name=HEAD ;# detached
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fi
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;;
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esac
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branch=$(git-rev-parse --verify "${branch_name}^0") || exit
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# Now we are rebasing commits $upstream..$branch on top of $onto
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# Check if we are already based on $onto, but this should be
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# done only when upstream and onto are the same.
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mb=$(git-merge-base "$onto" "$branch")
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if test "$upstream" = "$onto" && test "$mb" = "$onto"
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then
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echo >&2 "Current branch $branch_name is up to date."
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exit 0
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fi
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if test -n "$verbose"
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then
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echo "Changes from $mb to $onto:"
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# We want color (if set), but no pager
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GIT_PAGER='' git-diff --stat --summary "$mb" "$onto"
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fi
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# Rewind the head to "$onto"; this saves our current head in ORIG_HEAD.
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echo "First, rewinding head to replay your work on top of it..."
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git-reset --hard "$onto"
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# If the $onto is a proper descendant of the tip of the branch, then
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# we just fast forwarded.
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if test "$mb" = "$branch"
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then
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echo >&2 "Fast-forwarded $branch_name to $onto_name."
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exit 0
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fi
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if test -z "$do_merge"
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then
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git-format-patch -k --stdout --full-index --ignore-if-in-upstream "$upstream"..ORIG_HEAD |
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git am $git_am_opt --binary -3 -k --resolvemsg="$RESOLVEMSG"
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exit $?
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fi
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# start doing a rebase with git-merge
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# this is rename-aware if the recursive (default) strategy is used
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mkdir -p "$dotest"
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echo "$onto" > "$dotest/onto"
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echo "$onto_name" > "$dotest/onto_name"
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prev_head=`git-rev-parse HEAD^0`
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echo "$prev_head" > "$dotest/prev_head"
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msgnum=0
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for cmt in `git-rev-list --reverse --no-merges "$upstream"..ORIG_HEAD`
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do
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msgnum=$(($msgnum + 1))
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echo "$cmt" > "$dotest/cmt.$msgnum"
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done
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echo 1 >"$dotest/msgnum"
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echo $msgnum >"$dotest/end"
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end=$msgnum
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msgnum=1
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while test "$msgnum" -le "$end"
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do
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call_merge "$msgnum"
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continue_merge
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done
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finish_rb_merge
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