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b67b9612e1
A patch that changes the filetype (e.g. regular file to symlink) of a path
must be split into a deletion event followed by a creation event, which
means that we need to have two independent metainfo lines for each.
However, the code reused the single set of metainfo lines.
As the blob object names recorded on the index lines are usually not used
nor validated on the receiving end, this is not an issue with normal use
of the resulting patch. However, when accepting a binary patch to delete
a blob, git-apply verified that the postimage blob object name on the
index line is 0{40}, hence a patch that deletes a regular file blob that
records binary contents to create a blob with different filetype (e.g. a
symbolic link) failed to apply. "git am -3" also uses the blob object
names recorded on the index line, so it would also misbehave when
synthesizing a preimage tree.
This moves the code to generate metainfo lines around, so that two
independent sets of metainfo lines are used for the split halves.
Additional tests by Jeff King.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
123 lines
3 KiB
Bash
Executable file
123 lines
3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2006 Eric Wong
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#
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test_description='git apply should not get confused with type changes.
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'
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. ./test-lib.sh
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test_expect_success 'setup repository and commits' '
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echo "hello world" > foo &&
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echo "hi planet" > bar &&
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git update-index --add foo bar &&
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git commit -m initial &&
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git branch initial &&
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rm -f foo &&
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ln -s bar foo &&
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git update-index foo &&
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git commit -m "foo symlinked to bar" &&
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git branch foo-symlinked-to-bar &&
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rm -f foo &&
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echo "how far is the sun?" > foo &&
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git update-index foo &&
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git commit -m "foo back to file" &&
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git branch foo-back-to-file &&
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printf "\0" > foo &&
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git update-index foo &&
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git commit -m "foo becomes binary" &&
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git branch foo-becomes-binary &&
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rm -f foo &&
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git update-index --remove foo &&
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mkdir foo &&
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echo "if only I knew" > foo/baz &&
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git update-index --add foo/baz &&
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git commit -m "foo becomes a directory" &&
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git branch "foo-becomes-a-directory" &&
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echo "hello world" > foo/baz &&
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git update-index foo/baz &&
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git commit -m "foo/baz is the original foo" &&
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git branch foo-baz-renamed-from-foo
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'
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test_expect_success 'file renamed from foo to foo/baz' '
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git checkout -f initial &&
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git diff-tree -M -p HEAD foo-baz-renamed-from-foo > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'file renamed from foo/baz to foo' '
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git checkout -f foo-baz-renamed-from-foo &&
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git diff-tree -M -p HEAD initial > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'directory becomes file' '
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git checkout -f foo-becomes-a-directory &&
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git diff-tree -p HEAD initial > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'file becomes directory' '
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git checkout -f initial &&
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git diff-tree -p HEAD foo-becomes-a-directory > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'file becomes symlink' '
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git checkout -f initial &&
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git diff-tree -p HEAD foo-symlinked-to-bar > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'symlink becomes file' '
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git checkout -f foo-symlinked-to-bar &&
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git diff-tree -p HEAD foo-back-to-file > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'binary file becomes symlink' '
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git checkout -f foo-becomes-binary &&
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git diff-tree -p --binary HEAD foo-symlinked-to-bar > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'symlink becomes binary file' '
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git checkout -f foo-symlinked-to-bar &&
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git diff-tree -p --binary HEAD foo-becomes-binary > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'symlink becomes directory' '
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git checkout -f foo-symlinked-to-bar &&
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git diff-tree -p HEAD foo-becomes-a-directory > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_expect_success 'directory becomes symlink' '
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git checkout -f foo-becomes-a-directory &&
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git diff-tree -p HEAD foo-symlinked-to-bar > patch &&
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git apply --index < patch
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'
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test_debug 'cat patch'
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test_done
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