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git/t/t3320-notes-merge-worktrees.sh
David Turner b02e8595e2 notes: handle multiple worktrees
Before creating NOTES_MERGE_REF, check NOTES_MERGE_REF using
find_shared_symref and die if we find one.  This prevents simultaneous
merges to the same notes branch from different worktrees.

Signed-off-by: David Turner <dturner@twopensource.com>
Reviewed-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-11 13:52:27 -07:00

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#!/bin/sh
#
# Copyright (c) 2015 Twitter, Inc
#
test_description='Test merging of notes trees in multiple worktrees'
. ./test-lib.sh
test_expect_success 'setup commit' '
test_commit tantrum
'
commit_tantrum=$(git rev-parse tantrum^{commit})
test_expect_success 'setup notes ref (x)' '
git config core.notesRef refs/notes/x &&
git notes add -m "x notes on tantrum" tantrum
'
test_expect_success 'setup local branch (y)' '
git update-ref refs/notes/y refs/notes/x &&
git config core.notesRef refs/notes/y &&
git notes remove tantrum
'
test_expect_success 'setup remote branch (z)' '
git update-ref refs/notes/z refs/notes/x &&
git config core.notesRef refs/notes/z &&
git notes add -f -m "conflicting notes on tantrum" tantrum
'
test_expect_success 'modify notes ref ourselves (x)' '
git config core.notesRef refs/notes/x &&
git notes add -f -m "more conflicting notes on tantrum" tantrum
'
test_expect_success 'create some new worktrees' '
git worktree add -b newbranch worktree master &&
git worktree add -b newbranch2 worktree2 master
'
test_expect_success 'merge z into y fails and sets NOTES_MERGE_REF' '
git config core.notesRef refs/notes/y &&
test_must_fail git notes merge z &&
echo "ref: refs/notes/y" >expect &&
test_cmp .git/NOTES_MERGE_REF expect
'
test_expect_success 'merge z into y while mid-merge in another workdir fails' '
(
cd worktree &&
git config core.notesRef refs/notes/y &&
test_must_fail git notes merge z 2>err &&
grep "A notes merge into refs/notes/y is already in-progress at" err
) &&
test_path_is_missing .git/worktrees/worktree/NOTES_MERGE_REF
'
test_expect_success 'merge z into x while mid-merge on y succeeds' '
(
cd worktree2 &&
git config core.notesRef refs/notes/x &&
test_must_fail git notes merge z 2>&1 >out &&
grep "Automatic notes merge failed" out &&
grep -v "A notes merge into refs/notes/x is already in-progress in" out
) &&
echo "ref: refs/notes/x" >expect &&
test_cmp .git/worktrees/worktree2/NOTES_MERGE_REF expect
'
test_done