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0231ae71d3
Due to the implementation detail of intent-to-add entries, the current
"git diff" (i.e. no treeish or --cached argument) would show the
changes in the i-t-a file, but it does not mark the file as new, while
"diff --cached" would mark the file as new while showing its content
as empty.
$ git diff | $ diff --cached
--------------------------------|-------------------------------
diff --git a/new b/new | diff --git a/new b/new
index e69de29..5ad28e2 100644 | new file mode 100644
--- a/new | index 0000000..e69de29
+++ b/new |
@@ -0,0 +1 @@ |
+haha |
One evidence of the current output being wrong is that, the output
from "git diff" (with ita entries) cannot be applied because it
assumes empty files exist before applying.
Turning on --ita-invisible-in-index [1] [2] would fix this. The result
is "new file" line moving from "git diff --cached" to "git diff".
$ git diff | $ diff --cached
--------------------------------|-------------------------------
diff --git a/new b/new |
new file mode 100644 |
index 0000000..5ad28e2 |
--- /dev/null |
+++ b/new |
@@ -0,0 +1 @@ |
+haha |
This option is on by default in git-status [1] but we need more fixup
in rename detection code [3]. Luckily we don't need to do anything
else for the rename detection code in diff.c (wt-status.c uses a
customized one).
[1] 425a28e0a4 (diff-lib: allow ita entries treated as "not yet exist
in index" - 2016-10-24)
[2] b42b451919 (diff: add --ita-[in]visible-in-index - 2016-10-24)
[3] bc3dca07f4 (Merge branch 'nd/ita-wt-renames-in-status' - 2018-01-23)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
159 lines
3.4 KiB
Bash
Executable file
159 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-tool 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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new file mode 100644
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index 0000000..d95f3ad
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Binary files /dev/null and b/file.bin differ
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diff --git a/link.bin b/link.bin
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new file mode 120000
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index 0000000..dce41ec
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--- /dev/null
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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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