expose a helper function peel_to_type().

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 5e91db64e95d25049e298f37a2dadb436af8c8d0..2ef85a869d515b557815476f126386dc19f755c5 100755 (executable)
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -13,16 +13,20 @@ subcommands of git-submodule.
 
 #
 # Test setup:
-#  -create a repository in directory lib
+#  -create a repository in directory init
 #  -add a couple of files
-#  -add directory lib to 'superproject', this creates a DIRLINK entry
+#  -add directory init to 'superproject', this creates a DIRLINK entry
 #  -add a couple of regular files to enable testing of submodule filtering
-#  -mv lib subrepo
+#  -mv init subrepo
 #  -add an entry to .gitmodules for submodule 'example'
 #
 test_expect_success 'Prepare submodule testing' '
-       mkdir lib &&
-       cd lib &&
+       : > t &&
+       git-add t &&
+       git-commit -m "initial commit" &&
+       git branch initial HEAD &&
+       mkdir init &&
+       cd init &&
        git init &&
        echo a >a &&
        git add a &&
@@ -37,10 +41,10 @@ test_expect_success 'Prepare submodule testing' '
        cd .. &&
        echo a >a &&
        echo z >z &&
-       git add a lib z &&
+       git add a init z &&
        git-commit -m "super commit 1" &&
-       mv lib .subrepo &&
-       GIT_CONFIG=.gitmodules git config submodule.example.url git://example.com/lib.git
+       mv init .subrepo &&
+       GIT_CONFIG=.gitmodules git config submodule.example.url git://example.com/init.git
 '
 
 test_expect_success 'status should fail for unmapped paths' '
@@ -48,7 +52,7 @@ test_expect_success 'status should fail for unmapped paths' '
        then
                echo "[OOPS] submodule status succeeded"
                false
-       elif ! GIT_CONFIG=.gitmodules git config submodule.example.path lib
+       elif ! GIT_CONFIG=.gitmodules git config submodule.example.path init
        then
                echo "[OOPS] git config failed to update .gitmodules"
                false
@@ -67,7 +71,7 @@ test_expect_success 'status should initially be "missing"' '
 test_expect_success 'init should register submodule url in .git/config' '
        git-submodule init &&
        url=$(git config submodule.example.url) &&
-       if test "$url" != "git://example.com/lib.git"
+       if test "$url" != "git://example.com/init.git"
        then
                echo "[OOPS] init succeeded but submodule url is wrong"
                false
@@ -79,41 +83,41 @@ test_expect_success 'init should register submodule url in .git/config' '
 '
 
 test_expect_success 'update should fail when path is used by a file' '
-       echo "hello" >lib &&
+       echo "hello" >init &&
        if git-submodule update
        then
                echo "[OOPS] update should have failed"
                false
-       elif test "$(cat lib)" != "hello"
+       elif test "$(cat init)" != "hello"
        then
-               echo "[OOPS] update failed but lib file was molested"
+               echo "[OOPS] update failed but init file was molested"
                false
        else
-               rm lib
+               rm init
        fi
 '
 
 test_expect_success 'update should fail when path is used by a nonempty directory' '
-       mkdir lib &&
-       echo "hello" >lib/a &&
+       mkdir init &&
+       echo "hello" >init/a &&
        if git-submodule update
        then
                echo "[OOPS] update should have failed"
                false
-       elif test "$(cat lib/a)" != "hello"
+       elif test "$(cat init/a)" != "hello"
        then
-               echo "[OOPS] update failed but lib/a was molested"
+               echo "[OOPS] update failed but init/a was molested"
                false
        else
-               rm lib/a
+               rm init/a
        fi
 '
 
 test_expect_success 'update should work when path is an empty dir' '
-       rm -rf lib &&
-       mkdir lib &&
+       rm -rf init &&
+       mkdir init &&
        git-submodule update &&
-       head=$(cd lib && git rev-parse HEAD) &&
+       head=$(cd init && git rev-parse HEAD) &&
        if test -z "$head"
        then
                echo "[OOPS] Failed to obtain submodule head"
@@ -130,7 +134,7 @@ test_expect_success 'status should be "up-to-date" after update' '
 '
 
 test_expect_success 'status should be "modified" after submodule commit' '
-       cd lib &&
+       cd init &&
        echo b >b &&
        git add b &&
        git-commit -m "submodule commit 2" &&
@@ -148,9 +152,13 @@ test_expect_success 'the --cached sha1 should be rev1' '
        git-submodule --cached status | grep "^+$rev1"
 '
 
+test_expect_success 'git diff should report the SHA1 of the new submodule commit' '
+       git-diff | grep "^+Subproject commit $rev2"
+'
+
 test_expect_success 'update should checkout rev1' '
-       git-submodule update &&
-       head=$(cd lib && git rev-parse HEAD) &&
+       git-submodule update init &&
+       head=$(cd init && git rev-parse HEAD) &&
        if test -z "$head"
        then
                echo "[OOPS] submodule git rev-parse returned nothing"
@@ -166,4 +174,26 @@ test_expect_success 'status should be "up-to-date" after update' '
        git-submodule status | grep "^ $rev1"
 '
 
+test_expect_success 'checkout superproject with subproject already present' '
+       git-checkout initial &&
+       git-checkout master
+'
+
+test_expect_success 'apply submodule diff' '
+       git branch second &&
+       (
+               cd init &&
+               echo s >s &&
+               git add s &&
+               git commit -m "change subproject"
+       ) &&
+       git update-index --add init &&
+       git-commit -m "change init" &&
+       git-format-patch -1 --stdout >P.diff &&
+       git checkout second &&
+       git apply --index P.diff &&
+       D=$(git diff --cached master) &&
+       test -z "$D"
+'
+
 test_done