From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.0 required=3.0 tests=AWL,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,T_RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 7E0DF202F2 for ; Mon, 20 Nov 2017 22:04:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751322AbdKTWDb (ORCPT ); Mon, 20 Nov 2017 17:03:31 -0500 Received: from mx0a-00153501.pphosted.com ([67.231.148.48]:58164 "EHLO mx0a-00153501.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751391AbdKTWCO (ORCPT ); Mon, 20 Nov 2017 17:02:14 -0500 Received: from pps.filterd (m0096528.ppops.net [127.0.0.1]) by mx0a-00153501.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id vAKLw5xq028715; Mon, 20 Nov 2017 14:02:10 -0800 Authentication-Results: ppops.net; spf=softfail smtp.mailfrom=newren@gmail.com Received: from smtp-transport.yojoe.local (mxw3.palantir.com [66.70.54.23] (may be forged)) by mx0a-00153501.pphosted.com with ESMTP id 2eajmr3cpg-1; Mon, 20 Nov 2017 14:02:10 -0800 Received: from mxw1.palantir.com (smtp.yojoe.local [172.19.0.45]) by smtp-transport.yojoe.local (Postfix) with ESMTP id CC13D22F41A1; Mon, 20 Nov 2017 14:02:09 -0800 (PST) Received: from newren2-linux.yojoe.local (newren2-linux.dyn.yojoe.local [10.100.68.32]) by smtp.yojoe.local (Postfix) with ESMTP id BD8182CDEB1; Mon, 20 Nov 2017 14:02:09 -0800 (PST) From: Elijah Newren To: git@vger.kernel.org Cc: sbeller@google.com, gitster@pobox.com, Elijah Newren Subject: [PATCH v2 14/33] directory rename detection: tests for handling overwriting dirty files Date: Mon, 20 Nov 2017 14:01:50 -0800 Message-Id: <20171120220209.15111-15-newren@gmail.com> X-Mailer: git-send-email 2.15.0.323.g31fe956618 In-Reply-To: <20171120220209.15111-1-newren@gmail.com> References: <20171120220209.15111-1-newren@gmail.com> X-Proofpoint-SPF-Result: softfail X-Proofpoint-SPF-Record: v=spf1 redirect=_spf.google.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-11-20_12:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=4 phishscore=0 bulkscore=0 spamscore=0 clxscore=1034 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1711200295 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Signed-off-by: Elijah Newren --- t/t6043-merge-rename-directories.sh | 436 ++++++++++++++++++++++++++++++++++++ 1 file changed, 436 insertions(+) diff --git a/t/t6043-merge-rename-directories.sh b/t/t6043-merge-rename-directories.sh index 7408c788fc..88243651f7 100755 --- a/t/t6043-merge-rename-directories.sh +++ b/t/t6043-merge-rename-directories.sh @@ -3103,4 +3103,440 @@ test_expect_failure '10e-check: Does git complain about untracked file that is n ) ' +########################################################################### +# SECTION 11: Handling dirty (not up-to-date) files +# +# unpack_trees(), upon which the recursive merge algorithm is based, aborts +# the operation if untracked or dirty files would be deleted or overwritten +# by the merge. Unfortunately, unpack_trees() does not understand renames, +# and if it doesn't abort, then it muddies up the working directory before +# we even get to the point of detecting renames, so we need some special +# handling. This was true even of normal renames, but there are additional +# codepaths that need special handling with directory renames. Add +# testcases for both renamed-by-directory-rename-detection and standard +# rename cases. +########################################################################### + +# Testcase 11a, Avoid losing dirty contents with simple rename +# Commit O: z/{a,b_v1}, +# Commit A: z/{a,c_v1}, and z/c_v1 has uncommitted mods +# Commit B: z/{a,b_v2} +# Expected: ERROR_MSG(Refusing to lose dirty file at z/c) + +# z/a, staged version of z/c has sha1sum matching B:z/b_v2, +# z/c~HEAD with contents of B:z/b_v2, +# z/c with uncommitted mods on top of A:z/c_v1 + +test_expect_success '11a-setup: Avoid losing dirty contents with simple rename' ' + test_create_repo 11a && + ( + cd 11a && + + mkdir z && + echo a >z/a && + test_seq 1 10 >z/b && + git add z && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/b z/c && + test_tick && + git commit -m "A" && + + git checkout B && + echo 11 >>z/b && + git add z/b && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '11a-check: Avoid losing dirty contents with simple rename' ' + ( + cd 11a && + + git checkout A^0 && + echo stuff >>z/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + test_seq 1 10 >expected && + echo stuff >>expected && + + test 2 -eq $(git ls-files -s | wc -l) && + test 1 -eq $(git ls-files -u | wc -l) && + test 4 -eq $(git ls-files -o | wc -l) && + + git rev-parse >actual \ + :0:z/a :2:z/c && + git rev-parse >expect \ + O:z/a B:z/b && + test_cmp expect actual && + + test "$(git hash-object z/c~HEAD)" = $(git rev-parse B:z/b) && + test_cmp expected z/c + ) +' + +# Testcase 11b, Avoid losing dirty file involved in directory rename +# Commit O: z/a, x/{b,c_v1} +# Commit A: z/{a,c_v1}, x/b, and z/c_v1 has uncommitted mods +# Commit B: y/a, x/{b,c_v2} +# Expected: y/{a,c_v2}, x/b, z/c_v1 with uncommitted mods untracked, +# ERROR_MSG(Refusing to lose dirty file at z/c) + + +test_expect_success '11b-setup: Avoid losing dirty file involved in directory rename' ' + test_create_repo 11b && + ( + cd 11b && + + mkdir z x && + echo a >z/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c z/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z y && + echo 11 >>x/c && + git add x/c && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '11b-check: Avoid losing dirty file involved in directory rename' ' + ( + cd 11b && + + git checkout A^0 && + echo stuff >>z/c && + + git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + grep -q stuff */* && + test_seq 1 10 >expected && + echo stuff >>expected && + + test 3 -eq $(git ls-files -s | wc -l) && + test 0 -eq $(git ls-files -u | wc -l) && + test 0 -eq $(git ls-files -m | wc -l) && + test 4 -eq $(git ls-files -o | wc -l) && + + git rev-parse >actual \ + :0:x/b :0:y/a :0:y/c && + git rev-parse >expect \ + O:x/b O:z/a B:x/c && + test_cmp expect actual && + + test "$(git hash-object y/c)" = $(git rev-parse B:x/c) && + test_cmp expected z/c + ) +' + +# Testcase 11c, Avoid losing not-up-to-date with rename + D/F conflict +# Commit O: y/a, x/{b,c_v1} +# Commit A: y/{a,c_v1}, x/b, and y/c_v1 has uncommitted mods +# Commit B: y/{a,c/d}, x/{b,c_v2} +# Expected: Abort_msg("following files would be overwritten by merge") + +# y/c left untouched (still has uncommitted mods) + +test_expect_success '11c-setup: Avoid losing not-uptodate with rename + D/F conflict' ' + test_create_repo 11c && + ( + cd 11c && + + mkdir y x && + echo a >y/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add y x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c y/c && + test_tick && + git commit -m "A" && + + git checkout B && + mkdir y/c && + echo d >y/c/d && + echo 11 >>x/c && + git add x/c y/c/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_success '11c-check: Avoid losing not-uptodate with rename + D/F conflict' ' + ( + cd 11c && + + git checkout A^0 && + echo stuff >>y/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "following files would be overwritten by merge" err && + + grep -q stuff */* && + test_seq 1 10 >expected && + echo stuff >>expected && + + test 3 -eq $(git ls-files -s | wc -l) && + test 0 -eq $(git ls-files -u | wc -l) && + test 1 -eq $(git ls-files -m | wc -l) && + test 3 -eq $(git ls-files -o | wc -l) && + + test $(git rev-parse HEAD) = $(git rev-parse A) && + test_cmp expected y/c + ) +' + +# Testcase 11d, Avoid losing not-up-to-date with rename + D/F conflict +# Commit O: z/a, x/{b,c_v1} +# Commit A: z/{a,c_v1}, x/b, and z/c_v1 has uncommitted mods +# Commit B: y/{a,c/d}, x/{b,c_v2} +# Expected: D/F: y/c_v2 vs y/c/d) + +# Warning_Msg("Refusing to lose dirty file at z/c) + +# y/{a,c~HEAD,c/d}, x/b, now-untracked z/c_v1 with uncommitted mods + +test_expect_success '11d-setup: Avoid losing not-uptodate with rename + D/F conflict' ' + test_create_repo 11d && + ( + cd 11d && + + mkdir z x && + echo a >z/a && + echo b >x/b && + test_seq 1 10 >x/c && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv x/c z/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv z y && + mkdir y/c && + echo d >y/c/d && + echo 11 >>x/c && + git add x/c y/c/d && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '11d-check: Avoid losing not-uptodate with rename + D/F conflict' ' + ( + cd 11d && + + git checkout A^0 && + echo stuff >>z/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "Refusing to lose dirty file at z/c" out && + + grep -q stuff */* && + test_seq 1 10 >expected && + echo stuff >>expected && + + test 4 -eq $(git ls-files -s | wc -l) && + test 1 -eq $(git ls-files -u | wc -l) && + test 5 -eq $(git ls-files -o | wc -l) && + + git rev-parse >actual \ + :0:x/b :0:y/a :0:y/c/d :3:y/c && + git rev-parse >expect \ + O:x/b O:z/a B:y/c/d B:x/c && + test_cmp expect actual && + + test "$(git hash-object y/c~HEAD)" = $(git rev-parse B:x/c) && + test_cmp expected z/c + ) +' + +# Testcase 11e, Avoid deleting not-up-to-date with dir rename/rename(1to2)/add +# Commit O: z/{a,b}, x/{c_1,d} +# Commit A: y/{a,b,c_2}, x/d, w/c_1, and y/c_2 has uncommitted mods +# Commit B: z/{a,b,c_1}, x/d +# Expected: Failed Merge; y/{a,b} + x/d + +# CONFLICT(rename/rename) x/c_1 -> w/c_1 vs y/c_1 + +# ERROR_MSG(Refusing to lose dirty file at y/c) +# y/c~B^0 has O:x/c_1 contents +# y/c~HEAD has A:y/c_2 contents +# y/c has dirty file from before merge + +test_expect_success '11e-setup: Avoid deleting not-uptodate with dir rename/rename(1to2)/add' ' + test_create_repo 11e && + ( + cd 11e && + + mkdir z x && + echo a >z/a && + echo b >z/b && + echo c >x/c && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/ y/ && + echo different >y/c && + mkdir w && + git mv x/c w/ && + git add y/c && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/c z/ && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '11e-check: Avoid deleting not-uptodate with dir rename/rename(1to2)/add' ' + ( + cd 11e && + + git checkout A^0 && + echo mods >>y/c && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose dirty file at y/c" out && + + test 7 -eq $(git ls-files -s | wc -l) && + test 4 -eq $(git ls-files -u | wc -l) && + test 4 -eq $(git ls-files -o | wc -l) && + + echo different >expected && + echo mods >>expected && + + git rev-parse >actual \ + :0:y/a :0:y/b :0:x/d :1:x/c :2:w/c :2:y/c :3:y/c && + git rev-parse >expect \ + O:z/a O:z/b O:x/d O:x/c O:x/c A:y/c O:x/c && + test_cmp expect actual && + + git hash-object >actual \ + y/c~B^0 y/c~HEAD && + git rev-parse >expect \ + O:x/c A:y/c && + test_cmp expect actual && + + test_cmp expected y/c + ) +' + +# Testcase 11f, Avoid deleting not-up-to-date w/ dir rename/rename(2to1) +# Commit O: z/{a,b}, x/{c_1,d_2} +# Commit A: y/{a,b,wham_1}, x/d_2, except y/wham has uncommitted mods +# Commit B: z/{a,b,wham_2}, x/c_1 +# Expected: Failed Merge; y/{a,b} + untracked y/{wham~B^0,wham~B^HEAD} + +# y/wham with dirty changes from before merge + +# CONFLICT(rename/rename) x/c vs x/d -> y/wham +# ERROR_MSG(Refusing to lose dirty file at y/wham) + +test_expect_success '11f-setup: Avoid deleting not-uptodate with dir rename/rename(2to1)' ' + test_create_repo 11f && + ( + cd 11f && + + mkdir z x && + echo a >z/a && + echo b >z/b && + test_seq 1 10 >x/c && + echo d >x/d && + git add z x && + test_tick && + git commit -m "O" && + + git branch O && + git branch A && + git branch B && + + git checkout A && + git mv z/ y/ && + git mv x/c y/wham && + test_tick && + git commit -m "A" && + + git checkout B && + git mv x/d z/wham && + test_tick && + git commit -m "B" + ) +' + +test_expect_failure '11f-check: Avoid deleting not-uptodate with dir rename/rename(2to1)' ' + ( + cd 11f && + + git checkout A^0 && + echo important >>y/wham && + + test_must_fail git merge -s recursive B^0 >out 2>err && + test_i18ngrep "CONFLICT (rename/rename)" out && + test_i18ngrep "Refusing to lose dirty file at y/wham" out && + + test 4 -eq $(git ls-files -s | wc -l) && + test 2 -eq $(git ls-files -u | wc -l) && + test 4 -eq $(git ls-files -o | wc -l) && + + test_seq 1 10 >expected && + echo important >>expected && + + git rev-parse >actual \ + :0:y/a :0:y/b :2:y/wham :3:y/wham && + git rev-parse >expect \ + O:z/a O:z/b O:x/c O:x/d && + test_cmp expect actual && + + test_must_fail git rev-parse :1:y/wham && + + test_cmp expected y/wham && + git hash-object >actual \ + y/wham~B^0 y/wham~HEAD && + git rev-parse >expect \ + O:x/d O:x/c && + test_cmp expect actual + ) +' + test_done -- 2.15.0.309.g00c152f825