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78cc1a540b
This reverts commit d95d728aba.
It turns out that many other commands that need to interact with the
result of running diff-files and diff-index, e.g. "git apply", "git
rm", etc., need to be adjusted to the new world order it brings in.
For example, it would break this sequence to correct a whitespace
breakage in the parts you changed:
git add -N file
git diff --cached file | git apply --cached --whitespace=fix
git checkout file
In the old world order, "diff" showed a patch to modify an existing
empty file by adding its full contents, and "apply" updated the
index by modifying the existing empty blob (which is what an
Intent-to-Add entry records in the index) with that patch.
In the new world order, "diff" shows a patch to create a new file
with its full contents, but because "apply" thinks that the i-t-a
entry already exists in the index, it refused to accept a creation.
Adjusting "apply" to this new world order is easy, but we need to
assess the extent of the damage to the rest of the system the new
world order brought in before going forward and adjust them all,
after which we can resurrect the commit being reverted here.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
158 lines
3.4 KiB
Bash
Executable file
158 lines
3.4 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005 Johannes Schindelin
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#
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test_description='Test diff of symlinks.
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'
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/diff-lib.sh
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test_expect_success 'diff new symlink and file' '
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cat >expected <<-\EOF &&
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diff --git a/frotz b/frotz
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new file mode 120000
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index 0000000..7c465af
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--- /dev/null
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+++ b/frotz
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@@ -0,0 +1 @@
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+xyzzy
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\ No newline at end of file
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diff --git a/nitfol b/nitfol
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new file mode 100644
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index 0000000..7c465af
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--- /dev/null
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+++ b/nitfol
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@@ -0,0 +1 @@
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+xyzzy
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EOF
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# the empty tree
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git update-index &&
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tree=$(git write-tree) &&
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test_ln_s_add xyzzy frotz &&
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echo xyzzy >nitfol &&
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git update-index --add nitfol &&
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GIT_DIFF_OPTS=--unified=0 git diff-index -M -p $tree >current &&
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compare_diff_patch expected current
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'
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test_expect_success 'diff unchanged symlink and file' '
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tree=$(git write-tree) &&
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git update-index frotz nitfol &&
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test -z "$(git diff-index --name-only $tree)"
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'
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test_expect_success 'diff removed symlink and file' '
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cat >expected <<-\EOF &&
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diff --git a/frotz b/frotz
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deleted file mode 120000
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index 7c465af..0000000
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--- a/frotz
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+++ /dev/null
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@@ -1 +0,0 @@
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-xyzzy
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\ No newline at end of file
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diff --git a/nitfol b/nitfol
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deleted file mode 100644
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index 7c465af..0000000
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--- a/nitfol
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+++ /dev/null
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@@ -1 +0,0 @@
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-xyzzy
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EOF
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mv frotz frotz2 &&
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mv nitfol nitfol2 &&
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git diff-index -M -p $tree >current &&
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compare_diff_patch expected current
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'
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test_expect_success 'diff identical, but newly created symlink and file' '
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>expected &&
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rm -f frotz nitfol &&
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echo xyzzy >nitfol &&
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test-chmtime +10 nitfol &&
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if test_have_prereq SYMLINKS
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then
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ln -s xyzzy frotz
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else
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printf xyzzy >frotz
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# the symlink property propagates from the index
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fi &&
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git diff-index -M -p $tree >current &&
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compare_diff_patch expected current &&
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>expected &&
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git diff-index -M -p -w $tree >current &&
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compare_diff_patch expected current
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'
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test_expect_success 'diff different symlink and file' '
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cat >expected <<-\EOF &&
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diff --git a/frotz b/frotz
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index 7c465af..df1db54 120000
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--- a/frotz
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+++ b/frotz
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@@ -1 +1 @@
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-xyzzy
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\ No newline at end of file
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+yxyyz
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\ No newline at end of file
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diff --git a/nitfol b/nitfol
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index 7c465af..df1db54 100644
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--- a/nitfol
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+++ b/nitfol
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@@ -1 +1 @@
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-xyzzy
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+yxyyz
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EOF
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rm -f frotz &&
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if test_have_prereq SYMLINKS
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then
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ln -s yxyyz frotz
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else
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printf yxyyz >frotz
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# the symlink property propagates from the index
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fi &&
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echo yxyyz >nitfol &&
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git diff-index -M -p $tree >current &&
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compare_diff_patch expected current
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'
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test_expect_success SYMLINKS 'diff symlinks with non-existing targets' '
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ln -s narf pinky &&
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ln -s take\ over brain &&
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test_must_fail git diff --no-index pinky brain >output 2>output.err &&
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grep narf output &&
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! test -s output.err
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'
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test_expect_success SYMLINKS 'setup symlinks with attributes' '
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echo "*.bin diff=bin" >>.gitattributes &&
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echo content >file.bin &&
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ln -s file.bin link.bin &&
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git add -N file.bin link.bin
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'
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test_expect_success SYMLINKS 'symlinks do not respect userdiff config by path' '
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cat >expect <<-\EOF &&
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diff --git a/file.bin b/file.bin
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index e69de29..d95f3ad 100644
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Binary files a/file.bin and b/file.bin differ
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diff --git a/link.bin b/link.bin
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index e69de29..dce41ec 120000
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--- a/link.bin
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+++ b/link.bin
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@@ -0,0 +1 @@
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+file.bin
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\ No newline at end of file
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EOF
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git config diff.bin.binary true &&
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git diff file.bin link.bin >actual &&
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test_cmp expect actual
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'
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test_done
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