Move write_shallow_commits to fetch-pack.c

diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index bfb4975e940e29edf3b06e5c074b8e963cfbbdcf..4f16fcce2bfcb63f437fa6b495fdb5c4370fccc1 100755 (executable)
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -74,6 +74,49 @@ test_expect_success 'submodule update detaching the HEAD ' '
        )
 '
 
+apos="'";
+test_expect_success 'submodule update does not fetch already present commits' '
+       (cd submodule &&
+         echo line3 >> file &&
+         git add file &&
+         test_tick &&
+         git commit -m "upstream line3"
+       ) &&
+       (cd super/submodule &&
+         head=$(git rev-parse --verify HEAD) &&
+         echo "Submodule path ${apos}submodule$apos: checked out $apos$head$apos" > ../../expected &&
+         git reset --hard HEAD~1
+       ) &&
+       (cd super &&
+         git submodule update > ../actual 2> ../actual.err
+       ) &&
+       test_cmp expected actual &&
+       ! test -s actual.err
+'
+
+test_expect_success 'submodule update should fail due to local changes' '
+       (cd super/submodule &&
+        git reset --hard HEAD~1 &&
+        echo "local change" > file
+       ) &&
+       (cd super &&
+        (cd submodule &&
+         compare_head
+        ) &&
+        test_must_fail git submodule update submodule
+       )
+'
+test_expect_success 'submodule update should throw away changes with --force ' '
+       (cd super &&
+        (cd submodule &&
+         compare_head
+        ) &&
+        git submodule update --force submodule &&
+        cd submodule &&
+        ! compare_head
+       )
+'
+
 test_expect_success 'submodule update --rebase staying on master' '
        (cd super/submodule &&
          git checkout master
@@ -203,4 +246,56 @@ test_expect_success 'submodule init picks up merge' '
        )
 '
 
+test_expect_success 'submodule update --merge  - ignores --merge  for new submodules' '
+       (cd super &&
+        rm -rf submodule &&
+        git submodule update submodule &&
+        git status -s submodule >expect &&
+        rm -rf submodule &&
+        git submodule update --merge submodule &&
+        git status -s submodule >actual &&
+        test_cmp expect actual
+       )
+'
+
+test_expect_success 'submodule update --rebase - ignores --rebase for new submodules' '
+       (cd super &&
+        rm -rf submodule &&
+        git submodule update submodule &&
+        git status -s submodule >expect &&
+        rm -rf submodule &&
+        git submodule update --rebase submodule &&
+        git status -s submodule >actual &&
+        test_cmp expect actual
+       )
+'
+
+test_expect_success 'submodule update ignores update=merge config for new submodules' '
+       (cd super &&
+        rm -rf submodule &&
+        git submodule update submodule &&
+        git status -s submodule >expect &&
+        rm -rf submodule &&
+        git config submodule.submodule.update merge &&
+        git submodule update submodule &&
+        git status -s submodule >actual &&
+        git config --unset submodule.submodule.update &&
+        test_cmp expect actual
+       )
+'
+
+test_expect_success 'submodule update ignores update=rebase config for new submodules' '
+       (cd super &&
+        rm -rf submodule &&
+        git submodule update submodule &&
+        git status -s submodule >expect &&
+        rm -rf submodule &&
+        git config submodule.submodule.update rebase &&
+        git submodule update submodule &&
+        git status -s submodule >actual &&
+        git config --unset submodule.submodule.update &&
+        test_cmp expect actual
+       )
+'
+
 test_done