git-commit-vandalism/t/t3404-rebase-interactive.sh
Johannes Schindelin 1b1dce4bae Teach rebase an interactive mode
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>
2007-06-24 17:45:02 -07:00

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#!/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 '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 &&
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 &&
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_done