From b141f3c9d3220e1e63ca2195df85c392d475baaf Mon Sep 17 00:00:00 2001 From: Ramkumar Ramachandra Date: Sat, 15 Jun 2013 18:13:11 +0530 Subject: [PATCH 1/2] am: handle stray $dotest directory The following bug has been observed: $ git am # no input file ^C $ git am --abort Resolve operation not in progress, we are not resuming. This happens because the following test fails: test -d "$dotest" && test -f "$dotest/last" && test -f "$dotest/next" and the codepath for an "am in-progress" is not executed. It falls back to the codepath that treats this as a "fresh execution". Before rr/rebase-autostash, this condition was test -d "$dotest" It would incorrectly execute the "normal" am --abort codepath: git read-tree --reset -u HEAD ORIG_HEAD git reset ORIG_HEAD by incorrectly assuming that an am is "in progress" (i.e. ORIG_HEAD etc. was written during the previous execution). Notice that $ git am ^C executes nothing of significance, is equivalent to $ mkdir .git/rebase-apply Therefore, the correct solution is to treat .git/rebase-apply as a "stray directory" and remove it on --abort in the fresh-execution codepath. Also ensure that we're not called with --rebasing from git-rebase--am.sh; in that case, it is the responsibility of the caller to handle and stray directories. While at it, tell the user to run "git am --abort" to get rid of the stray $dotest directory, if she attempts anything else. Reported-by: Junio C Hamano Signed-off-by: Ramkumar Ramachandra Signed-off-by: Junio C Hamano --- git-am.sh | 17 +++++++++++++++++ t/t4150-am.sh | 6 ++++++ 2 files changed, 23 insertions(+) diff --git a/git-am.sh b/git-am.sh index 1cf3d1dacf..9f4450916c 100755 --- a/git-am.sh +++ b/git-am.sh @@ -506,6 +506,23 @@ then esac rm -f "$dotest/dirtyindex" else + # Possible stray $dotest directory in the independent-run + # case; in the --rebasing case, it is upto the caller + # (git-rebase--am) to take care of stray directories. + if test -d "$dotest" && test -z "$rebasing" + then + case "$skip,$resolved,$abort" in + ,,t) + rm -fr "$dotest" + exit 0 + ;; + *) + die "$(eval_gettext "Stray \$dotest directory found. +Use \"git am --abort\" to remove it.")" + ;; + esac + fi + # Make sure we are not given --skip, --resolved, nor --abort test "$skip$resolved$abort" = "" || die "$(gettext "Resolve operation not in progress, we are not resuming.")" diff --git a/t/t4150-am.sh b/t/t4150-am.sh index 12f6b027ac..6c2cc3e5d7 100755 --- a/t/t4150-am.sh +++ b/t/t4150-am.sh @@ -363,6 +363,12 @@ test_expect_success 'am --skip works' ' test_cmp expected another ' +test_expect_success 'am --abort removes a stray directory' ' + mkdir .git/rebase-apply && + git am --abort && + test_path_is_missing .git/rebase-apply +' + test_expect_success 'am --resolved works' ' echo goodbye >expected && rm -fr .git/rebase-apply && From 61e0eb9de268cab90ea2563957b4c74c77e82b48 Mon Sep 17 00:00:00 2001 From: Ramkumar Ramachandra Date: Sat, 15 Jun 2013 18:13:12 +0530 Subject: [PATCH 2/2] t/am: use test_path_is_missing() where appropriate Replace instances of ! test -d with test_path_is_missing. Signed-off-by: Ramkumar Ramachandra Signed-off-by: Junio C Hamano --- t/t4150-am.sh | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/t/t4150-am.sh b/t/t4150-am.sh index 6c2cc3e5d7..5edb79a058 100755 --- a/t/t4150-am.sh +++ b/t/t4150-am.sh @@ -147,7 +147,7 @@ test_expect_success 'am applies patch correctly' ' git checkout first && test_tick && git am actual && grep "Re: Re: Re: \[PATCH 1/5 v2\] \[foo\] third" actual ' @@ -268,7 +268,7 @@ test_expect_success 'am --keep-non-patch really keeps the non-patch part' ' git reset --hard && git checkout HEAD^ && git am --keep-non-patch patch4 && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && git cat-file commit HEAD >actual && grep "^\[foo\] third" actual ' @@ -283,7 +283,7 @@ test_expect_success 'am -3 falls back to 3-way merge' ' test_tick && git commit -m "copied stuff" && git am -3 lorem-move.patch && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && git diff --exit-code lorem ' @@ -297,7 +297,7 @@ test_expect_success 'am -3 -p0 can read --no-prefix patch' ' test_tick && git commit -m "copied stuff" && git am -3 -p0 lorem-zero.patch && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && git diff --exit-code lorem ' @@ -307,7 +307,7 @@ test_expect_success 'am can rename a file' ' git reset --hard && git checkout lorem^0 && git am rename.patch && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && git update-index --refresh && git diff --exit-code rename ' @@ -318,7 +318,7 @@ test_expect_success 'am -3 can rename a file' ' git reset --hard && git checkout lorem^0 && git am -3 rename.patch && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && git update-index --refresh && git diff --exit-code rename ' @@ -329,7 +329,7 @@ test_expect_success 'am -3 can rename a file after falling back to 3-way merge' git reset --hard && git checkout lorem^0 && git am -3 rename-add.patch && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && git update-index --refresh && git diff --exit-code rename ' @@ -358,7 +358,7 @@ test_expect_success 'am pauses on conflict' ' test_expect_success 'am --skip works' ' echo goodbye >expected && git am --skip && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && git diff --exit-code lorem2^^ -- file && test_cmp expected another ' @@ -379,7 +379,7 @@ test_expect_success 'am --resolved works' ' echo resolved >>file && git add file && git am --resolved && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && test_cmp expected another ' @@ -388,7 +388,7 @@ test_expect_success 'am takes patches from a Pine mailbox' ' git reset --hard && git checkout first && cat pine patch1 | git am && - ! test -d .git/rebase-apply && + test_path_is_missing .git/rebase-apply && git diff --exit-code master^..HEAD ' @@ -397,7 +397,7 @@ test_expect_success 'am fails on mail without patch' ' git reset --hard && test_must_fail git am >failmail && test_must_fail git am