git/t/t3429-rebase-edit-todo.sh
Johannes Schindelin 6d67a993b2 get_oid(): when an object was not found, try harder
It is quite possible that the loose object cache gets stale when new
objects are written. In that case, get_oid() would potentially say that
it cannot find a given object, even if it should find it.

Let's blow away the loose object cache as well as the read packs and try
again in that case.

Note: this does *not* affect the code path that was introduced to help
avoid looking for the same non-existing objects (which made some
operations really expensive via NFS): that code path is handled by the
`OBJECT_INFO_QUICK` flag (which does not even apply to `get_oid()`,
which has no equivalent flag, at least at the time this patch was
written).

This incidentally fixes the problem identified earlier where an
interactive rebase wanted to re-read (and validate) the todo list after
an `exec` command modified it.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-14 12:46:29 +09:00

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Executable File

#!/bin/sh
test_description='rebase should reread the todo file if an exec modifies it'
. ./test-lib.sh
test_expect_success 'rebase exec modifies rebase-todo' '
test_commit initial &&
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_done