git/t/t3422-rebase-incompatible-options.sh
Rohit Ashiwal ef484add9f rebase -i: add --ignore-whitespace flag
Rebase is implemented with two different backends - 'apply' and
'merge' each of which support a different set of options. In
particular the apply backend supports a number of options implemented
by 'git am' that are not implemented in the merge backend. This means
that the available options are different depending on which backend is
used which is confusing. This patch adds support for the
--ignore-whitespace option to the merge backend. This option treats
lines with only whitespace changes as unchanged and is implemented in
the merge backend by translating it to -Xignore-space-change.

Signed-off-by: Rohit Ashiwal <rohit.ashiwal265@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-13 07:55:37 -07:00

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#!/bin/sh
test_description='test if rebase detects and aborts on incompatible options'
. ./test-lib.sh
test_expect_success 'setup' '
test_seq 2 9 >foo &&
git add foo &&
git commit -m orig &&
git branch A &&
git branch B &&
git checkout A &&
test_seq 1 9 >foo &&
git add foo &&
git commit -m A &&
git checkout B &&
echo "q qfoo();" | q_to_tab >>foo &&
git add foo &&
git commit -m B
'
#
# Rebase has lots of useful options like --whitepsace=fix, which are
# actually all built in terms of flags to git-am. Since neither
# --merge nor --interactive (nor any options that imply those two) use
# git-am, using them together will result in flags like --whitespace=fix
# being ignored. Make sure rebase warns the user and aborts instead.
#
test_rebase_am_only () {
opt=$1
shift
test_expect_success "$opt incompatible with --merge" "
git checkout B^0 &&
test_must_fail git rebase $opt --merge A
"
test_expect_success "$opt incompatible with --strategy=ours" "
git checkout B^0 &&
test_must_fail git rebase $opt --strategy=ours A
"
test_expect_success "$opt incompatible with --strategy-option=ours" "
git checkout B^0 &&
test_must_fail git rebase $opt --strategy-option=ours A
"
test_expect_success "$opt incompatible with --interactive" "
git checkout B^0 &&
test_must_fail git rebase $opt --interactive A
"
test_expect_success "$opt incompatible with --exec" "
git checkout B^0 &&
test_must_fail git rebase $opt --exec 'true' A
"
}
test_rebase_am_only --whitespace=fix
test_rebase_am_only --committer-date-is-author-date
test_rebase_am_only -C4
test_expect_success REBASE_P '--preserve-merges incompatible with --signoff' '
git checkout B^0 &&
test_must_fail git rebase --preserve-merges --signoff A
'
test_expect_success REBASE_P \
'--preserve-merges incompatible with --rebase-merges' '
git checkout B^0 &&
test_must_fail git rebase --preserve-merges --rebase-merges A
'
test_done