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-rw-r--r--.gitignore1
-rw-r--r--Documentation/git-rebase.txt106
-rw-r--r--Makefile2
-rwxr-xr-xgit-commit.sh30
-rwxr-xr-xgit-rebase--interactive.sh410
-rwxr-xr-xgit-rebase.sh12
-rwxr-xr-xgit-sh-setup.sh27
-rwxr-xr-xt/t3404-rebase-interactive.sh191
8 files changed, 746 insertions, 33 deletions
diff --git a/.gitignore b/.gitignore
index e8b060c..a2a617d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -96,6 +96,7 @@ git-push
git-quiltimport
git-read-tree
git-rebase
+git-rebase--interactive
git-receive-pack
git-reflog
git-relink
diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 0c00090..96907d4 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -8,7 +8,8 @@ git-rebase - Forward-port local commits to the updated upstream head
SYNOPSIS
--------
[verse]
-'git-rebase' [-v] [--merge] [-C<n>] [--onto <newbase>] <upstream> [<branch>]
+'git-rebase' [-i | --interactive] [-v | --verbose] [--merge] [-C<n>]
+ [-p | --preserve-merges] [--onto <newbase>] <upstream> [<branch>]
'git-rebase' --continue | --skip | --abort
DESCRIPTION
@@ -208,6 +209,14 @@ OPTIONS
context exist they all must match. By default no context is
ever ignored.
+-i, \--interactive::
+ Make a list of the commits which are about to be rebased. Let the
+ user edit that list before rebasing.
+
+-p, \--preserve-merges::
+ Instead of ignoring merges, try to recreate them. This option
+ only works in interactive mode.
+
include::merge-strategies.txt[]
NOTES
@@ -226,9 +235,100 @@ pre-rebase hook script for an example.
You must be in the top directory of your project to start (or continue)
a rebase. Upon completion, <branch> will be the current branch.
-Author
+INTERACTIVE MODE
+----------------
+
+Rebasing interactively means that you have a chance to edit the commits
+which are rebased. You can reorder the commits, and you can
+remove them (weeding out bad or otherwise unwanted patches).
+
+The interactive mode is meant for this type of workflow:
+
+1. have a wonderful idea
+2. hack on the code
+3. prepare a series for submission
+4. submit
+
+where point 2. consists of several instances of
+
+a. regular use
+ 1. finish something worthy of a commit
+ 2. commit
+b. independent fixup
+ 1. realize that something does not work
+ 2. fix that
+ 3. commit it
+
+Sometimes the thing fixed in b.2. cannot be amended to the not-quite
+perfect commit it fixes, because that commit is buried deeply in a
+patch series. That is exactly what interactive rebase is for: use it
+after plenty of "a"s and "b"s, by rearranging and editing
+commits, and squashing multiple commits into one.
+
+Start it with the last commit you want to retain as-is:
+
+ git rebase -i <after-this-commit>
+
+An editor will be fired up with all the commits in your current branch
+(ignoring merge commits), which come after the given commit. You can
+reorder the commits in this list to your heart's content, and you can
+remove them. The list looks more or less like this:
+
+-------------------------------------------
+pick deadbee The oneline of this commit
+pick fa1afe1 The oneline of the next commit
+...
+-------------------------------------------
+
+The oneline descriptions are purely for your pleasure; `git-rebase` will
+not look at them but at the commit names ("deadbee" and "fa1afe1" in this
+example), so do not delete or edit the names.
+
+By replacing the command "pick" with the command "edit", you can tell
+`git-rebase` to stop after applying that commit, so that you can edit
+the files and/or the commit message, amend the commit, and continue
+rebasing.
+
+If you want to fold two or more commits into one, replace the command
+"pick" with "squash" for the second and subsequent commit. If the
+commits had different authors, it will attribute the squashed commit to
+the author of the last commit.
+
+In both cases, or when a "pick" does not succeed (because of merge
+errors), the loop will stop to let you fix things, and you can continue
+the loop with `git rebase --continue`.
+
+For example, if you want to reorder the last 5 commits, such that what
+was HEAD~4 becomes the new HEAD. To achieve that, you would call
+`git-rebase` like this:
+
+----------------------
+$ git rebase -i HEAD~5
+----------------------
+
+And move the first patch to the end of the list.
+
+You might want to preserve merges, if you have a history like this:
+
+------------------
+ X
+ \
+ A---M---B
+ /
+---o---O---P---Q
+------------------
+
+Suppose you want to rebase the side branch starting at "A" to "Q". Make
+sure that the current HEAD is "B", and call
+
+-----------------------------
+$ git rebase -i -p --onto Q O
+-----------------------------
+
+Authors
------
-Written by Junio C Hamano <junkio@cox.net>
+Written by Junio C Hamano <junkio@cox.net> and
+Johannes E. Schindelin <johannes.schindelin@gmx.de>
Documentation
--------------
diff --git a/Makefile b/Makefile
index 5d60dc8..eed6bd5 100644
--- a/Makefile
+++ b/Makefile
@@ -204,7 +204,7 @@ SCRIPT_SH = \
git-fetch.sh \
git-ls-remote.sh \
git-merge-one-file.sh git-mergetool.sh git-parse-remote.sh \
- git-pull.sh git-rebase.sh \
+ git-pull.sh git-rebase.sh git-rebase--interactive.sh \
git-repack.sh git-request-pull.sh git-reset.sh \
git-sh-setup.sh \
git-tag.sh git-verify-tag.sh \
diff --git a/git-commit.sh b/git-commit.sh
index 5547a02..d43bdd8 100755
--- a/git-commit.sh
+++ b/git-commit.sh
@@ -483,34 +483,8 @@ fi >>"$GIT_DIR"/COMMIT_EDITMSG
# Author
if test '' != "$use_commit"
then
- pick_author_script='
- /^author /{
- s/'\''/'\''\\'\'\''/g
- h
- s/^author \([^<]*\) <[^>]*> .*$/\1/
- s/'\''/'\''\'\'\''/g
- s/.*/GIT_AUTHOR_NAME='\''&'\''/p
-
- g
- s/^author [^<]* <\([^>]*\)> .*$/\1/
- s/'\''/'\''\'\'\''/g
- s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
-
- g
- s/^author [^<]* <[^>]*> \(.*\)$/\1/
- s/'\''/'\''\'\'\''/g
- s/.*/GIT_AUTHOR_DATE='\''&'\''/p
-
- q
- }
- '
- encoding=$(git config i18n.commitencoding || echo UTF-8)
- set_author_env=`git show -s --pretty=raw --encoding="$encoding" "$use_commit" |
- LANG=C LC_ALL=C sed -ne "$pick_author_script"`
- eval "$set_author_env"
- export GIT_AUTHOR_NAME
- export GIT_AUTHOR_EMAIL
- export GIT_AUTHOR_DATE
+ eval "$(get_author_ident_from_commit "$use_commit")"
+ export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
fi
if test '' != "$force_author"
then
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
new file mode 100755
index 0000000..0c2a969
--- /dev/null
+++ b/git-rebase--interactive.sh
@@ -0,0 +1,410 @@
+#!/bin/sh
+#
+# Copyright (c) 2006 Johannes E. Schindelin
+
+# SHORT DESCRIPTION
+#
+# This script makes it easy to fix up commits in the middle of a series,
+# and rearrange commits.
+#
+# The original idea comes from Eric W. Biederman, in
+# http://article.gmane.org/gmane.comp.version-control.git/22407
+
+USAGE='(--continue | --abort | --skip | [--preserve-merges] [--verbose]
+ [--onto <branch>] <upstream> [<branch>])'
+
+. git-sh-setup
+require_work_tree
+
+DOTEST="$GIT_DIR/.dotest-merge"
+TODO="$DOTEST"/todo
+DONE="$DOTEST"/done
+REWRITTEN="$DOTEST"/rewritten
+PRESERVE_MERGES=
+STRATEGY=
+VERBOSE=
+
+warn () {
+ echo "$*" >&2
+}
+
+require_clean_work_tree () {
+ # test if working tree is dirty
+ git rev-parse --verify HEAD > /dev/null &&
+ git update-index --refresh &&
+ git diff-files --quiet &&
+ git diff-index --cached --quiet HEAD ||
+ die "Working tree is dirty"
+}
+
+ORIG_REFLOG_ACTION="$GIT_REFLOG_ACTION"
+
+comment_for_reflog () {
+ case "$ORIG_REFLOG_ACTION" in
+ ''|rebase*)
+ GIT_REFLOG_ACTION="rebase -i ($1)"
+ export GIT_REFLOG_ACTION
+ esac
+}
+
+mark_action_done () {
+ sed -e 1q < "$TODO" >> "$DONE"
+ sed -e 1d < "$TODO" >> "$TODO".new
+ mv -f "$TODO".new "$TODO"
+}
+
+make_patch () {
+ parent_sha1=$(git rev-parse --verify "$1"^ 2> /dev/null)
+ git diff "$parent_sha1".."$1" > "$DOTEST"/patch
+}
+
+die_with_patch () {
+ make_patch "$1"
+ die "$2"
+}
+
+die_abort () {
+ rm -rf "$DOTEST"
+ die "$1"
+}
+
+pick_one () {
+ case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac
+ git rev-parse --verify $sha1 || die "Invalid commit name: $sha1"
+ test -d "$REWRITTEN" &&
+ pick_one_preserving_merges "$@" && return
+ parent_sha1=$(git rev-parse --verify $sha1^ 2>/dev/null)
+ current_sha1=$(git rev-parse --verify HEAD)
+ if [ $current_sha1 = $parent_sha1 ]; then
+ git reset --hard $sha1
+ sha1=$(git rev-parse --short $sha1)
+ warn Fast forward to $sha1
+ else
+ git cherry-pick $STRATEGY "$@"
+ fi
+}
+
+pick_one_preserving_merges () {
+ case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac
+ sha1=$(git rev-parse $sha1)
+
+ if [ -f "$DOTEST"/current-commit ]
+ then
+ current_commit=$(cat "$DOTEST"/current-commit) &&
+ git rev-parse HEAD > "$REWRITTEN"/$current_commit &&
+ rm "$DOTEST"/current-commit ||
+ die "Cannot write current commit's replacement sha1"
+ fi
+
+ # rewrite parents; if none were rewritten, we can fast-forward.
+ fast_forward=t
+ preserve=t
+ new_parents=
+ for p in $(git rev-list --parents -1 $sha1 | cut -d\ -f2-)
+ do
+ if [ -f "$REWRITTEN"/$p ]
+ then
+ preserve=f
+ new_p=$(cat "$REWRITTEN"/$p)
+ test $p != $new_p && fast_forward=f
+ case "$new_parents" in
+ *$new_p*)
+ ;; # do nothing; that parent is already there
+ *)
+ new_parents="$new_parents $new_p"
+ esac
+ fi
+ done
+ case $fast_forward in
+ t)
+ echo "Fast forward to $sha1"
+ test $preserve=f && echo $sha1 > "$REWRITTEN"/$sha1
+ ;;
+ f)
+ test "a$1" = a-n && die "Refusing to squash a merge: $sha1"
+
+ first_parent=$(expr "$new_parents" : " \([^ ]*\)")
+ # detach HEAD to current parent
+ git checkout $first_parent 2> /dev/null ||
+ die "Cannot move HEAD to $first_parent"
+
+ echo $sha1 > "$DOTEST"/current-commit
+ case "$new_parents" in
+ \ *\ *)
+ # redo merge
+ author_script=$(get_author_ident_from_commit $sha1)
+ eval "$author_script"
+ msg="$(git cat-file commit $sha1 | \
+ sed -e '1,/^$/d' -e "s/[\"\\]/\\\\&/g")"
+ # NEEDSWORK: give rerere a chance
+ if ! git merge $STRATEGY -m "$msg" $new_parents
+ then
+ echo "$msg" > "$GIT_DIR"/MERGE_MSG
+ warn Error redoing merge $sha1
+ warn
+ warn After fixup, please use
+ die "$author_script git commit"
+ fi
+ ;;
+ *)
+ git cherry-pick $STRATEGY "$@" ||
+ die_with_patch $sha1 "Could not pick $sha1"
+ esac
+ esac
+}
+
+do_next () {
+ read command sha1 rest < "$TODO"
+ case "$command" in
+ \#|'')
+ mark_action_done
+ continue
+ ;;
+ pick)
+ comment_for_reflog pick
+
+ mark_action_done
+ pick_one $sha1 ||
+ die_with_patch $sha1 "Could not apply $sha1... $rest"
+ ;;
+ edit)
+ comment_for_reflog edit
+
+ mark_action_done
+ pick_one $sha1 ||
+ die_with_patch $sha1 "Could not apply $sha1... $rest"
+ make_patch $sha1
+ warn
+ warn "You can amend the commit now, with"
+ warn
+ warn " git commit --amend"
+ warn
+ exit 0
+ ;;
+ squash)
+ comment_for_reflog squash
+
+ test -z "$(grep -ve '^$' -e '^#' < $DONE)" &&
+ die "Cannot 'squash' without a previous commit"
+
+ mark_action_done
+ failed=f
+ pick_one -n $sha1 || failed=t
+ MSG="$DOTEST"/message
+ echo "# This is a combination of two commits." > "$MSG"
+ echo "# The first commit's message is:" >> "$MSG"
+ echo >> "$MSG"
+ git cat-file commit HEAD | sed -e '1,/^$/d' >> "$MSG"
+ echo >> "$MSG"
+ echo "# And this is the 2nd commit message:" >> "$MSG"
+ echo >> "$MSG"
+ git cat-file commit $sha1 | sed -e '1,/^$/d' >> "$MSG"
+ git reset --soft HEAD^
+ author_script=$(get_author_ident_from_commit $sha1)
+ case $failed in
+ f)
+ # This is like --amend, but with a different message
+ eval "$author_script"
+ export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
+ git commit -F "$MSG" -e
+ ;;
+ t)
+ cp "$MSG" "$GIT_DIR"/MERGE_MSG
+ warn
+ warn "Could not apply $sha1... $rest"
+ warn "After you fixed that, commit the result with"
+ warn
+ warn " $(echo $author_script | tr '\012' ' ') \\"
+ warn " git commit -F \"$GIT_DIR\"/MERGE_MSG -e"
+ die_with_patch $sha1 ""
+ esac
+ ;;
+ *)
+ warn "Unknown command: $command $sha1 $rest"
+ die_with_patch $sha1 "Please fix this in the file $TODO."
+ esac
+ test -s "$TODO" && return
+
+ comment_for_reflog finish &&
+ HEADNAME=$(cat "$DOTEST"/head-name) &&
+ OLDHEAD=$(cat "$DOTEST"/head) &&
+ SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) &&
+ if [ -d "$REWRITTEN" ]
+ then
+ test -f "$DOTEST"/current-commit &&
+ current_commit=$(cat "$DOTEST"/current-commit) &&
+ git rev-parse HEAD > "$REWRITTEN"/$current_commit
+ NEWHEAD=$(cat "$REWRITTEN"/$OLDHEAD)
+ else
+ NEWHEAD=$(git rev-parse HEAD)
+ fi &&
+ message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO)" &&
+ git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD &&
+ git symbolic-ref HEAD $HEADNAME &&
+ rm -rf "$DOTEST" &&
+ warn "Successfully rebased and updated $HEADNAME."
+
+ exit
+}
+
+do_rest () {
+ while :
+ do
+ do_next
+ done
+ test -f "$DOTEST"/verbose &&
+ git diff --stat $(cat "$DOTEST"/head)..HEAD
+ exit
+}
+
+while case $# in 0) break ;; esac
+do
+ case "$1" in
+ --continue)
+ comment_for_reflog continue
+
+ test -d "$DOTEST" || die "No interactive rebase running"
+
+ require_clean_work_tree
+ do_rest
+ ;;
+ --abort)
+ comment_for_reflog abort
+
+ test -d "$DOTEST" || die "No interactive rebase running"
+
+ HEADNAME=$(cat "$DOTEST"/head-name)
+ HEAD=$(cat "$DOTEST"/head)
+ git symbolic-ref HEAD $HEADNAME &&
+ git reset --hard $HEAD &&
+ rm -rf "$DOTEST"
+ exit
+ ;;
+ --skip)
+ comment_for_reflog skip
+
+ test -d "$DOTEST" || die "No interactive rebase running"
+
+ git reset --hard && do_rest
+ ;;
+ -s|--strategy)
+ shift
+ case "$#,$1" in
+ *,*=*)
+ STRATEGY="-s `expr "z$1" : 'z-[^=]*=\(.*\)'`" ;;
+ 1,*)
+ usage ;;
+ *)
+ STRATEGY="-s $2"
+ shift ;;
+ esac
+ ;;
+ --merge)
+ # we use merge anyway
+ ;;
+ -C*)
+ die "Interactive rebase uses merge, so $1 does not make sense"
+ ;;
+ -v|--verbose)
+ VERBOSE=t
+ ;;
+ -p|--preserve-merges)
+ PRESERVE_MERGES=t
+ ;;
+ -i|--interactive)
+ # yeah, we know
+ ;;
+ ''|-h)
+ usage
+ ;;
+ *)
+ test -d "$DOTEST" &&
+ die "Interactive rebase already started"
+
+ git var GIT_COMMITTER_IDENT >/dev/null ||
+ die "You need to set your committer info first"
+
+ comment_for_reflog start
+
+ ONTO=
+ case "$1" in
+ --onto)
+ ONTO=$(git rev-parse --verify "$2") ||
+ die "Does not point to a valid commit: $2"
+ shift; shift
+ ;;
+ esac
+
+ require_clean_work_tree
+
+ if [ ! -z "$2"]
+ then
+ git show-ref --verify --quiet "refs/heads/$2" ||
+ die "Invalid branchname: $2"
+ git checkout "$2" ||
+ die "Could not checkout $2"
+ fi
+
+ HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?"
+ UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base"
+
+ test -z "$ONTO" && ONTO=$UPSTREAM
+
+ mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
+ : > "$DOTEST"/interactive || die "Could not mark as interactive"
+ git symbolic-ref HEAD > "$DOTEST"/head-name ||
+ die "Could not get HEAD"
+
+ echo $HEAD > "$DOTEST"/head
+ echo $UPSTREAM > "$DOTEST"/upstream
+ echo $ONTO > "$DOTEST"/onto
+ test t = "$VERBOSE" && : > "$DOTEST"/verbose
+ if [ t = "$PRESERVE_MERGES" ]
+ then
+ # $REWRITTEN contains files for each commit that is
+ # reachable by at least one merge base of $HEAD and
+ # $UPSTREAM. They are not necessarily rewritten, but
+ # their children might be.
+ # This ensures that commits on merged, but otherwise
+ # unrelated side branches are left alone. (Think "X"
+ # in the man page's example.)
+ mkdir "$REWRITTEN" &&
+ for c in $(git merge-base --all $HEAD $UPSTREAM)
+ do
+ echo $ONTO > "$REWRITTEN"/$c ||
+ die "Could not init rewritten commits"
+ done
+ MERGES_OPTION=
+ else
+ MERGES_OPTION=--no-merges
+ fi
+
+ SHORTUPSTREAM=$(git rev-parse --short $UPSTREAM)
+ SHORTHEAD=$(git rev-parse --short $HEAD)
+ SHORTONTO=$(git rev-parse --short $ONTO)
+ cat > "$TODO" << EOF
+# Rebasing $SHORTUPSTREAM..$SHORTHEAD onto $SHORTONTO
+#
+# Commands:
+# pick = use commit
+# edit = use commit, but stop for amending
+# squash = use commit, but meld into previous commit
+EOF
+ git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \
+ --abbrev=7 --reverse $UPSTREAM..$HEAD | \
+ sed "s/^/pick /" >> "$TODO"
+
+ test -z "$(grep -ve '^$' -e '^#' < $TODO)" &&
+ die_abort "Nothing to do"
+
+ cp "$TODO" "$TODO".backup
+ ${VISUAL:-${EDITOR:-vi}} "$TODO" ||
+ die "Could not execute editor"
+
+ test -z "$(grep -ve '^$' -e '^#' < $TODO)" &&
+ die_abort "Nothing to do"
+
+ git checkout $ONTO && do_rest
+ esac
+ shift
+done
diff --git a/git-rebase.sh b/git-rebase.sh
index 2aa3a01..3887526 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -3,7 +3,7 @@
# Copyright (c) 2005 Junio C Hamano.
#
-USAGE='[-v] [--onto <newbase>] <upstream> [<branch>]'
+USAGE='[--interactive | -i] [-v] [--onto <newbase>] <upstream> [<branch>]'
LONG_USAGE='git-rebase replaces <branch> with a new branch of the
same name. When the --onto option is provided the new branch starts
out with a HEAD equal to <newbase>, otherwise it is equal to <upstream>
@@ -120,6 +120,16 @@ finish_rb_merge () {
echo "All done."
}
+is_interactive () {
+ test -f "$dotest"/interactive ||
+ while case $#,"$1" in 0,|*,-i|*,--interactive) break ;; esac
+ do
+ shift
+ done && test -n "$1"
+}
+
+is_interactive "$@" && exec git-rebase--interactive "$@"
+
while case "$#" in 0) break ;; esac
do
case "$1" in
diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index 0de49e8..9895960 100755
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -49,6 +49,33 @@ require_work_tree () {
die "fatal: $0 cannot be used without a working tree."
}
+get_author_ident_from_commit () {
+ pick_author_script='
+ /^author /{
+ s/'\''/'\''\\'\'\''/g
+ h
+ s/^author \([^<]*\) <[^>]*> .*$/\1/
+ s/'\''/'\''\'\'\''/g
+ s/.*/GIT_AUTHOR_NAME='\''&'\''/p
+
+ g
+ s/^author [^<]* <\([^>]*\)> .*$/\1/
+ s/'\''/'\''\'\'\''/g
+ s/.*/GIT_AUTHOR_EMAIL='\''&'\''/p
+
+ g
+ s/^author [^<]* <[^>]*> \(.*\)$/\1/
+ s/'\''/'\''\'\'\''/g
+ s/.*/GIT_AUTHOR_DATE='\''&'\''/p
+
+ q
+ }
+ '
+ encoding=$(git config i18n.commitencoding || echo UTF-8)
+ git show -s --pretty=raw --encoding="$encoding" "$1" |
+ LANG=C LC_ALL=C sed -ne "$pick_author_script"
+}
+
if [ -z "$LONG_USAGE" ]
then
LONG_USAGE="Usage: $0 $USAGE"
diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
new file mode 100755
index 0000000..883cf29
--- /dev/null
+++ b/t/t3404-rebase-interactive.sh
@@ -0,0 +1,191 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Johannes E. Schindelin
+#
+
+test_description='git rebase interactive
+
+This test runs git rebase "interactively", by faking an edit, and verifies
+that the result still makes sense.
+'
+. ./test-lib.sh
+
+# set up two branches like this:
+#
+# A - B - C - D - E
+# \
+# F - G - H
+# \
+# I
+#
+# where B, D and G touch the same file.
+
+test_expect_success 'setup' '
+ : > file1 &&
+ git add file1 &&
+ test_tick &&
+ git commit -m A &&
+ git tag A &&
+ echo 1 > file1 &&
+ test_tick &&
+ git commit -m B file1 &&
+ : > file2 &&
+ git add file2 &&
+ test_tick &&
+ git commit -m C &&
+ echo 2 > file1 &&
+ test_tick &&
+ git commit -m D file1 &&
+ : > file3 &&
+ git add file3 &&
+ test_tick &&
+ git commit -m E &&
+ git checkout -b branch1 A &&
+ : > file4 &&
+ git add file4 &&
+ test_tick &&
+ git commit -m F &&
+ git tag F &&
+ echo 3 > file1 &&
+ test_tick &&
+ git commit -m G file1 &&
+ : > file5 &&
+ git add file5 &&
+ test_tick &&
+ git commit -m H &&
+ git checkout -b branch2 F &&
+ : > file6 &&
+ git add file6 &&
+ test_tick &&
+ git commit -m I &&
+ git tag I
+'
+
+cat > fake-editor.sh << EOF
+#!/bin/sh
+test "\$1" = .git/COMMIT_EDITMSG && exit
+test -z "\$FAKE_LINES" && exit
+grep -v "^#" < "\$1" > "\$1".tmp
+rm "\$1"
+cat "\$1".tmp
+action=pick
+for line in \$FAKE_LINES; do
+ case \$line in
+ squash)
+ action="\$line";;
+ *)
+ echo sed -n "\${line}s/^pick/\$action/p"
+ sed -n "\${line}p" < "\$1".tmp
+ sed -n "\${line}s/^pick/\$action/p" < "\$1".tmp >> "\$1"
+ action=pick;;
+ esac
+done
+EOF
+
+chmod a+x fake-editor.sh
+VISUAL="$(pwd)/fake-editor.sh"
+export VISUAL
+
+test_expect_success 'no changes are a nop' '
+ git rebase -i F &&
+ test $(git rev-parse I) = $(git rev-parse HEAD)
+'
+
+test_expect_success 'rebase on top of a non-conflicting commit' '
+ git checkout branch1 &&
+ git tag original-branch1 &&
+ git rebase -i branch2 &&
+ test file6 = $(git diff --name-only original-branch1) &&
+ test $(git rev-parse I) = $(git rev-parse HEAD~2)
+'
+
+test_expect_success 'reflog for the branch shows state before rebase' '
+ test $(git rev-parse branch1@{1}) = $(git rev-parse original-branch1)
+'
+
+test_expect_success 'exchange two commits' '
+ FAKE_LINES="2 1" git rebase -i HEAD~2 &&
+ test H = $(git cat-file commit HEAD^ | tail -n 1) &&
+ test G = $(git cat-file commit HEAD | tail -n 1)
+'
+
+cat > expect << EOF
+diff --git a/file1 b/file1
+index e69de29..00750ed 100644
+--- a/file1
++++ b/file1
+@@ -0,0 +1 @@
++3
+EOF
+
+cat > expect2 << EOF
+<<<<<<< HEAD:file1
+2
+=======
+3
+>>>>>>> b7ca976... G:file1
+EOF
+
+test_expect_success 'stop on conflicting pick' '
+ git tag new-branch1 &&
+ ! git rebase -i master &&
+ diff -u expect .git/.dotest-merge/patch &&
+ diff -u expect2 file1 &&
+ test 4 = $(grep -v "^#" < .git/.dotest-merge/done | wc -l) &&
+ test 0 = $(grep -v "^#" < .git/.dotest-merge/todo | wc -l)
+'
+
+test_expect_success 'abort' '
+ git rebase --abort &&
+ test $(git rev-parse new-branch1) = $(git rev-parse HEAD) &&
+ ! test -d .git/.dotest-merge
+'
+
+test_expect_success 'retain authorship' '
+ echo A > file7 &&
+ git add file7 &&
+ test_tick &&
+ GIT_AUTHOR_NAME="Twerp Snog" git commit -m "different author" &&
+ git tag twerp &&
+ git rebase -i --onto master HEAD^ &&
+ git show HEAD | grep "^Author: Twerp Snog"
+'
+
+test_expect_success 'squash' '
+ git reset --hard twerp &&
+ echo B > file7 &&
+ test_tick &&
+ GIT_AUTHOR_NAME="Nitfol" git commit -m "nitfol" file7 &&
+ echo "******************************" &&
+ FAKE_LINES="1 squash 2" git rebase -i --onto master HEAD~2 &&
+ test B = $(cat file7) &&
+ test $(git rev-parse HEAD^) = $(git rev-parse master)
+'
+
+test_expect_success 'retain authorship when squashing' '
+ git show HEAD | grep "^Author: Nitfol"
+'
+
+test_expect_success 'preserve merges with -p' '
+ git checkout -b to-be-preserved master^ &&
+ : > unrelated-file &&
+ git add unrelated-file &&
+ test_tick &&
+ git commit -m "unrelated" &&
+ git checkout -b to-be-rebased master &&
+ echo B > file1 &&
+ test_tick &&
+ git commit -m J file1 &&
+ test_tick &&
+ git merge to-be-preserved &&
+ echo C > file1 &&
+ test_tick &&
+ git commit -m K file1 &&
+ git rebase -i -p --onto branch1 master &&
+ test $(git rev-parse HEAD^^2) = $(git rev-parse to-be-preserved) &&
+ test $(git rev-parse HEAD~3) = $(git rev-parse branch1) &&
+ test $(git show HEAD:file1) = C &&
+ test $(git show HEAD~2:file1) = B
+'
+
+test_done