submodule.c: correctly handle nested submodules in is_submodule_modified

Suppose I have a superproject 'super', with two submodules 'super/sub'
and 'super/sub1'. 'super/sub' itself contains a submodule
'super/sub/subsub'. Now suppose I run, from within 'super':

    echo hi >sub/subsub/stray-file
    echo hi >sub1/stray-file

Currently we get would see the following output in git-status:

    git status --short
     m sub
     ? sub1

With this patch applied, the untracked file in the nested submodule is
displayed as an untracked file on the 'super' level as well.

    git status --short
     ? sub
     ? sub1

This doesn't change the output of 'git status --porcelain=1' for nested
submodules, because its output is always ' M' for either untracked files
or local modifications no matter the nesting level of the submodule.

'git status --porcelain=2' is affected by this change in a nested
submodule, though. Without this patch it would report the direct submodule
as modified and having no untracked files. With this patch it would report
untracked files. Chalk this up as a bug fix.

This bug fix also affects the default output (non-short, non-porcelain)
of git-status, which is not tested here.

Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller
2017-03-29 15:26:16 -07:00
committed by Junio C Hamano
parent dd6962dd73
commit 40069d6e3a
4 changed files with 24 additions and 5 deletions

View File

@ -356,7 +356,7 @@ test_expect_success 'status with untracked file in nested submodule (porcelain=2
git -C super status --porcelain=2 >output &&
sanitize_output output &&
diff output - <<-\EOF
1 .M S.M. 160000 160000 160000 HASH HASH sub1
1 .M S..U 160000 160000 160000 HASH HASH sub1
1 .M S..U 160000 160000 160000 HASH HASH sub2
1 .M S..U 160000 160000 160000 HASH HASH sub3
EOF
@ -365,7 +365,7 @@ test_expect_success 'status with untracked file in nested submodule (porcelain=2
test_expect_success 'status with untracked file in nested submodule (short)' '
git -C super status --short >output &&
diff output - <<-\EOF
m sub1
? sub1
? sub2
? sub3
EOF