git/t/t4059-diff-submodule-not-initialized.sh
Stefan Beller 2d94dd2fc6 submodule: correct error message for missing commits
When a submodule diff should be displayed we currently just add the
submodule objects to the main object store and then e.g. walk the
revision graph and create a summary for that submodule.

It is possible that we are missing the submodule either completely or
partially, which we currently differentiate with different error messages
depending on whether (1) the whole submodule object store is missing or
(2) just the needed for this particular diff. (1) is reported as
"not initialized", and (2) is reported as "commits not present".

If a submodule is deinit'ed its repository data is still around inside
the superproject, such that the diff can still be produced. In that way
the error message (1) is misleading as we can have a diff despite the
submodule being not initialized.

Downgrade the error message (1) to be the same as (2) and just say
the commits are not present, as that is the true reason why the diff
cannot be shown.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-28 14:15:20 +09:00

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#!/bin/sh
#
# Copyright (c) 2016 Jacob Keller, based on t4041 by Jens Lehmann
#
test_description='Test for submodule diff on non-checked out submodule
This test tries to verify that add_submodule_odb works when the submodule was
initialized previously but the checkout has since been removed.
'
. ./test-lib.sh
# Tested non-UTF-8 encoding
test_encoding="ISO8859-1"
# String "added" in German (translated with Google Translate), encoded in UTF-8,
# used in sample commit log messages in add_file() function below.
added=$(printf "hinzugef\303\274gt")
add_file () {
(
cd "$1" &&
shift &&
for name
do
echo "$name" >"$name" &&
git add "$name" &&
test_tick &&
# "git commit -m" would break MinGW, as Windows refuse to pass
# $test_encoding encoded parameter to git.
echo "Add $name ($added $name)" | iconv -f utf-8 -t $test_encoding |
git -c "i18n.commitEncoding=$test_encoding" commit -F -
done >/dev/null &&
git rev-parse --short --verify HEAD
)
}
commit_file () {
test_tick &&
git commit "$@" -m "Commit $*" >/dev/null
}
test_expect_success 'setup - submodules' '
test_create_repo sm2 &&
add_file . foo &&
add_file sm2 foo1 foo2 &&
smhead1=$(git -C sm2 rev-parse --short --verify HEAD)
'
test_expect_success 'setup - git submodule add' '
git submodule add ./sm2 sm1 &&
commit_file sm1 .gitmodules &&
git diff-tree -p --no-commit-id --submodule=log HEAD -- sm1 >actual &&
cat >expected <<-EOF &&
Submodule sm1 0000000...$smhead1 (new submodule)
EOF
test_cmp expected actual
'
test_expect_success 'submodule directory removed' '
rm -rf sm1 &&
git diff-tree -p --no-commit-id --submodule=log HEAD -- sm1 >actual &&
cat >expected <<-EOF &&
Submodule sm1 0000000...$smhead1 (new submodule)
EOF
test_cmp expected actual
'
test_expect_success 'setup - submodule multiple commits' '
git submodule update --checkout sm1 &&
smhead2=$(add_file sm1 foo3 foo4) &&
commit_file sm1 &&
git diff-tree -p --no-commit-id --submodule=log HEAD >actual &&
cat >expected <<-EOF &&
Submodule sm1 $smhead1..$smhead2:
> Add foo4 ($added foo4)
> Add foo3 ($added foo3)
EOF
test_cmp expected actual
'
test_expect_success 'submodule removed multiple commits' '
rm -rf sm1 &&
git diff-tree -p --no-commit-id --submodule=log HEAD >actual &&
cat >expected <<-EOF &&
Submodule sm1 $smhead1..$smhead2:
> Add foo4 ($added foo4)
> Add foo3 ($added foo3)
EOF
test_cmp expected actual
'
test_expect_success 'submodule not initialized in new clone' '
git clone . sm3 &&
git -C sm3 diff-tree -p --no-commit-id --submodule=log HEAD >actual &&
cat >expected <<-EOF &&
Submodule sm1 $smhead1...$smhead2 (commits not present)
EOF
test_cmp expected actual
'
test_expect_success 'setup submodule moved' '
git submodule update --checkout sm1 &&
git mv sm1 sm4 &&
commit_file sm4 &&
git diff-tree -p --no-commit-id --submodule=log HEAD >actual &&
cat >expected <<-EOF &&
Submodule sm4 0000000...$smhead2 (new submodule)
EOF
test_cmp expected actual
'
test_expect_success 'submodule moved then removed' '
smhead3=$(add_file sm4 foo6 foo7) &&
commit_file sm4 &&
rm -rf sm4 &&
git diff-tree -p --no-commit-id --submodule=log HEAD >actual &&
cat >expected <<-EOF &&
Submodule sm4 $smhead2..$smhead3:
> Add foo7 ($added foo7)
> Add foo6 ($added foo6)
EOF
test_cmp expected actual
'
test_done