git/t/t3429-rebase-edit-todo.sh
Phillip Wood a47ba3c777 rebase -i: check for updated todo after squash and reword
While a rebase is stopped for the user to edit a commit message it can
be convenient for them to also edit the todo list. The scripted version
of rebase supported this but the C version does not. We already check to
see if the todo list has been updated by an exec command so extend this
to rewords and squashes. It only costs a single stat call to do this so
it should not affect the speed of the rebase (especially as it has just
stopped for the user to edit a message)

Note that for squashes the editor may be opened on a different pick to
the squash itself as we edit the message at the end of a chain fixups
and squashes.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 15:27:13 -07:00

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#!/bin/sh
test_description='rebase should reread the todo file if an exec modifies it'
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-rebase.sh
test_expect_success 'setup' '
test_commit first file &&
test_commit second file &&
test_commit third file
'
test_expect_success 'rebase exec modifies rebase-todo' '
todo=.git/rebase-merge/git-rebase-todo &&
git rebase HEAD -x "echo exec touch F >>$todo" &&
test -e F
'
test_expect_success SHA1 'loose object cache vs re-reading todo list' '
GIT_REBASE_TODO=.git/rebase-merge/git-rebase-todo &&
export GIT_REBASE_TODO &&
write_script append-todo.sh <<-\EOS &&
# For values 5 and 6, this yields SHA-1s with the same first two digits
echo "pick $(git rev-parse --short \
$(printf "%s\\n" \
"tree $EMPTY_TREE" \
"author A U Thor <author@example.org> $1 +0000" \
"committer A U Thor <author@example.org> $1 +0000" \
"" \
"$1" |
git hash-object -t commit -w --stdin))" >>$GIT_REBASE_TODO
shift
test -z "$*" ||
echo "exec $0 $*" >>$GIT_REBASE_TODO
EOS
git rebase HEAD -x "./append-todo.sh 5 6"
'
test_expect_success 'todo is re-read after reword and squash' '
write_script reword-editor.sh <<-\EOS &&
GIT_SEQUENCE_EDITOR="echo \"exec echo $(cat file) >>actual\" >>" \
git rebase --edit-todo
EOS
test_write_lines first third >expected &&
set_fake_editor &&
GIT_SEQUENCE_EDITOR="$EDITOR" FAKE_LINES="reword 1 squash 2 fixup 3" \
GIT_EDITOR=./reword-editor.sh git rebase -i --root third &&
test_cmp expected actual
'
test_done