git/t/t4041-diff-submodule.sh
Jens Lehmann c7e1a73641 git diff --submodule: Show detailed dirty status of submodules
When encountering a dirty submodule while doing "git diff --submodule"
print an extra line for new untracked content and another for modified
but already tracked content. And if the HEAD of the submodule is equal
to the ref diffed against in the superproject, drop the output which
would just show the same SHA1s and no commit message headlines.

To achieve that, the dirty_submodule bitfield is expanded to two bits.
The output of "git status" inside the submodule is parsed to set the
according bits.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-04 22:16:33 -08:00

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#!/bin/sh
#
# Copyright (c) 2009 Jens Lehmann, based on t7401 by Ping Yin
#
test_description='Support for verbose submodule differences in git diff
This test tries to verify the sanity of the --submodule option of git diff.
'
. ./test-lib.sh
add_file () {
sm=$1
shift
owd=$(pwd)
cd "$sm"
for name; do
echo "$name" > "$name" &&
git add "$name" &&
test_tick &&
git commit -m "Add $name"
done >/dev/null
git rev-parse --verify HEAD | cut -c1-7
cd "$owd"
}
commit_file () {
test_tick &&
git commit "$@" -m "Commit $*" >/dev/null
}
test_create_repo sm1 &&
add_file . foo >/dev/null
head1=$(add_file sm1 foo1 foo2)
test_expect_success 'added submodule' "
git add sm1 &&
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 0000000...$head1 (new submodule)
EOF
"
commit_file sm1 &&
head2=$(add_file sm1 foo3)
test_expect_success 'modified submodule(forward)' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 $head1..$head2:
> Add foo3
EOF
"
test_expect_success 'modified submodule(forward)' "
git diff --submodule=log >actual &&
diff actual - <<-EOF
Submodule sm1 $head1..$head2:
> Add foo3
EOF
"
test_expect_success 'modified submodule(forward) --submodule' "
git diff --submodule >actual &&
diff actual - <<-EOF
Submodule sm1 $head1..$head2:
> Add foo3
EOF
"
fullhead1=$(cd sm1; git rev-list --max-count=1 $head1)
fullhead2=$(cd sm1; git rev-list --max-count=1 $head2)
test_expect_success 'modified submodule(forward) --submodule=short' "
git diff --submodule=short >actual &&
diff actual - <<-EOF
diff --git a/sm1 b/sm1
index $head1..$head2 160000
--- a/sm1
+++ b/sm1
@@ -1 +1 @@
-Subproject commit $fullhead1
+Subproject commit $fullhead2
EOF
"
commit_file sm1 &&
cd sm1 &&
git reset --hard HEAD~2 >/dev/null &&
head3=$(git rev-parse --verify HEAD | cut -c1-7) &&
cd ..
test_expect_success 'modified submodule(backward)' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 $head2..$head3 (rewind):
< Add foo3
< Add foo2
EOF
"
head4=$(add_file sm1 foo4 foo5) &&
head4_full=$(GIT_DIR=sm1/.git git rev-parse --verify HEAD)
test_expect_success 'modified submodule(backward and forward)' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 $head2...$head4:
> Add foo5
> Add foo4
< Add foo3
< Add foo2
EOF
"
commit_file sm1 &&
mv sm1 sm1-bak &&
echo sm1 >sm1 &&
head5=$(git hash-object sm1 | cut -c1-7) &&
git add sm1 &&
rm -f sm1 &&
mv sm1-bak sm1
test_expect_success 'typechanged submodule(submodule->blob), --cached' "
git diff --submodule=log --cached >actual &&
diff actual - <<-EOF
Submodule sm1 41fbea9...0000000 (submodule deleted)
diff --git a/sm1 b/sm1
new file mode 100644
index 0000000..9da5fb8
--- /dev/null
+++ b/sm1
@@ -0,0 +1 @@
+sm1
EOF
"
test_expect_success 'typechanged submodule(submodule->blob)' "
git diff --submodule=log >actual &&
diff actual - <<-EOF
diff --git a/sm1 b/sm1
deleted file mode 100644
index 9da5fb8..0000000
--- a/sm1
+++ /dev/null
@@ -1 +0,0 @@
-sm1
Submodule sm1 0000000...$head4 (new submodule)
EOF
"
rm -rf sm1 &&
git checkout-index sm1
test_expect_success 'typechanged submodule(submodule->blob)' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 $head4...0000000 (submodule deleted)
diff --git a/sm1 b/sm1
new file mode 100644
index 0000000..$head5
--- /dev/null
+++ b/sm1
@@ -0,0 +1 @@
+sm1
EOF
"
rm -f sm1 &&
test_create_repo sm1 &&
head6=$(add_file sm1 foo6 foo7)
fullhead6=$(cd sm1; git rev-list --max-count=1 $head6)
test_expect_success 'nonexistent commit' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 $head4...$head6 (commits not present)
EOF
"
commit_file
test_expect_success 'typechanged submodule(blob->submodule)' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
diff --git a/sm1 b/sm1
deleted file mode 100644
index $head5..0000000
--- a/sm1
+++ /dev/null
@@ -1 +0,0 @@
-sm1
Submodule sm1 0000000...$head6 (new submodule)
EOF
"
commit_file sm1 &&
test_expect_success 'submodule is up to date' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
EOF
"
test_expect_success 'submodule contains untracked content' "
echo new > sm1/new-file &&
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 contains untracked content
EOF
"
test_expect_success 'submodule contains untracked and modifed content' "
echo new > sm1/foo6 &&
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 contains untracked content
Submodule sm1 contains modified content
EOF
"
test_expect_success 'submodule contains modifed content' "
rm -f sm1/new-file &&
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 contains modified content
EOF
"
(cd sm1; git commit -mchange foo6 >/dev/null) &&
head8=$(cd sm1; git rev-parse --verify HEAD | cut -c1-7) &&
test_expect_success 'submodule is modified' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 $head6..$head8:
> change
EOF
"
test_expect_success 'modified submodule contains untracked content' "
echo new > sm1/new-file &&
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 contains untracked content
Submodule sm1 $head6..$head8:
> change
EOF
"
test_expect_success 'modified submodule contains untracked and modifed content' "
echo modification >> sm1/foo6 &&
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 contains untracked content
Submodule sm1 contains modified content
Submodule sm1 $head6..$head8:
> change
EOF
"
test_expect_success 'modified submodule contains modifed content' "
rm -f sm1/new-file &&
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 contains modified content
Submodule sm1 $head6..$head8:
> change
EOF
"
rm -rf sm1
test_expect_success 'deleted submodule' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 $head6...0000000 (submodule deleted)
EOF
"
test_create_repo sm2 &&
head7=$(add_file sm2 foo8 foo9) &&
git add sm2
test_expect_success 'multiple submodules' "
git diff-index -p --submodule=log HEAD >actual &&
diff actual - <<-EOF
Submodule sm1 $head6...0000000 (submodule deleted)
Submodule sm2 0000000...$head7 (new submodule)
EOF
"
test_expect_success 'path filter' "
git diff-index -p --submodule=log HEAD sm2 >actual &&
diff actual - <<-EOF
Submodule sm2 0000000...$head7 (new submodule)
EOF
"
commit_file sm2
test_expect_success 'given commit' "
git diff-index -p --submodule=log HEAD^ >actual &&
diff actual - <<-EOF
Submodule sm1 $head6...0000000 (submodule deleted)
Submodule sm2 0000000...$head7 (new submodule)
EOF
"
test_expect_success 'given commit --submodule' "
git diff-index -p --submodule HEAD^ >actual &&
diff actual - <<-EOF
Submodule sm1 $head6...0000000 (submodule deleted)
Submodule sm2 0000000...$head7 (new submodule)
EOF
"
fullhead7=$(cd sm2; git rev-list --max-count=1 $head7)
test_expect_success 'given commit --submodule=short' "
git diff-index -p --submodule=short HEAD^ >actual &&
diff actual - <<-EOF
diff --git a/sm1 b/sm1
deleted file mode 160000
index $head6..0000000
--- a/sm1
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit $fullhead6
diff --git a/sm2 b/sm2
new file mode 160000
index 0000000..$head7
--- /dev/null
+++ b/sm2
@@ -0,0 +1 @@
+Subproject commit $fullhead7
EOF
"
test_done