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![René Scharfe](/assets/img/avatar_default.png)
When -R is given, queue_diff() swaps the mode and name variables of the
two files to produce a reverse diff. 1e3f26542a
(diff --no-index:
support reading from named pipes, 2023-07-05) added variables that
indicate whether files are special, i.e named pipes or - for stdin.
These new variables were not swapped, though, which broke the handling
of stdin with with -R. Swap them like the other metadata variables.
Reported-by: Martin Storsjö <martin@martin.st>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
288 lines
7.1 KiB
Bash
Executable file
288 lines
7.1 KiB
Bash
Executable file
#!/bin/sh
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test_description='diff --no-index'
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TEST_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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test_expect_success 'setup' '
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mkdir a &&
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mkdir b &&
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echo 1 >a/1 &&
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echo 2 >a/2 &&
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git init repo &&
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echo 1 >repo/a &&
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mkdir -p non/git &&
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echo 1 >non/git/a &&
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echo 1 >non/git/b
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'
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test_expect_success 'git diff --no-index --exit-code' '
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git diff --no-index --exit-code a/1 non/git/a &&
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test_expect_code 1 git diff --no-index --exit-code a/1 a/2
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'
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test_expect_success 'git diff --no-index directories' '
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test_expect_code 1 git diff --no-index a b >cnt &&
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test_line_count = 14 cnt
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'
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test_expect_success 'git diff --no-index relative path outside repo' '
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(
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cd repo &&
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test_expect_code 0 git diff --no-index a ../non/git/a &&
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test_expect_code 0 git diff --no-index ../non/git/a ../non/git/b
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)
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'
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test_expect_success 'git diff --no-index with broken index' '
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(
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cd repo &&
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echo broken >.git/index &&
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git diff --no-index a ../non/git/a
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)
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'
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test_expect_success 'git diff outside repo with broken index' '
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(
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cd repo &&
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git diff ../non/git/a ../non/git/b
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)
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'
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test_expect_success 'git diff --no-index executed outside repo gives correct error message' '
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(
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GIT_CEILING_DIRECTORIES=$TRASH_DIRECTORY/non &&
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export GIT_CEILING_DIRECTORIES &&
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cd non/git &&
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test_must_fail git diff --no-index a 2>actual.err &&
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test_i18ngrep "usage: git diff --no-index" actual.err
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)
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'
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test_expect_success 'diff D F and diff F D' '
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(
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cd repo &&
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echo in-repo >a &&
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echo non-repo >../non/git/a &&
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mkdir sub &&
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echo sub-repo >sub/a &&
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test_must_fail git diff --no-index sub/a ../non/git/a >expect &&
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test_must_fail git diff --no-index sub/a ../non/git/ >actual &&
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test_cmp expect actual &&
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test_must_fail git diff --no-index a ../non/git/a >expect &&
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test_must_fail git diff --no-index a ../non/git/ >actual &&
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test_cmp expect actual &&
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test_must_fail git diff --no-index ../non/git/a a >expect &&
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test_must_fail git diff --no-index ../non/git a >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success 'turning a file into a directory' '
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(
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cd non/git &&
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mkdir d e e/sub &&
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echo 1 >d/sub &&
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echo 2 >e/sub/file &&
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printf "D\td/sub\nA\te/sub/file\n" >expect &&
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test_must_fail git diff --no-index --name-status d e >actual &&
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test_cmp expect actual
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)
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'
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test_expect_success 'diff from repo subdir shows real paths (explicit)' '
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echo "diff --git a/../../non/git/a b/../../non/git/b" >expect &&
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test_expect_code 1 \
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git -C repo/sub \
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diff --no-index ../../non/git/a ../../non/git/b >actual &&
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head -n 1 <actual >actual.head &&
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test_cmp expect actual.head
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'
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test_expect_success 'diff from repo subdir shows real paths (implicit)' '
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echo "diff --git a/../../non/git/a b/../../non/git/b" >expect &&
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test_expect_code 1 \
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git -C repo/sub \
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diff ../../non/git/a ../../non/git/b >actual &&
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head -n 1 <actual >actual.head &&
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test_cmp expect actual.head
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'
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test_expect_success 'diff --no-index from repo subdir respects config (explicit)' '
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echo "diff --git ../../non/git/a ../../non/git/b" >expect &&
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test_config -C repo diff.noprefix true &&
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test_expect_code 1 \
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git -C repo/sub \
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diff --no-index ../../non/git/a ../../non/git/b >actual &&
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head -n 1 <actual >actual.head &&
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test_cmp expect actual.head
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'
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test_expect_success 'diff --no-index from repo subdir respects config (implicit)' '
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echo "diff --git ../../non/git/a ../../non/git/b" >expect &&
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test_config -C repo diff.noprefix true &&
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test_expect_code 1 \
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git -C repo/sub \
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diff ../../non/git/a ../../non/git/b >actual &&
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head -n 1 <actual >actual.head &&
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test_cmp expect actual.head
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'
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test_expect_success 'diff --no-index from repo subdir with absolute paths' '
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cat <<-EOF >expect &&
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1 1 $(pwd)/non/git/{a => b}
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EOF
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test_expect_code 1 \
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git -C repo/sub diff --numstat \
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"$(pwd)/non/git/a" "$(pwd)/non/git/b" >actual &&
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test_cmp expect actual
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'
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test_expect_success 'diff --no-index allows external diff' '
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test_expect_code 1 \
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env GIT_EXTERNAL_DIFF="echo external ;:" \
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git diff --no-index non/git/a non/git/b >actual &&
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echo external >expect &&
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test_cmp expect actual
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'
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test_expect_success 'diff --no-index normalizes mode: no changes' '
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echo foo >x &&
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cp x y &&
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git diff --no-index x y >out &&
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test_must_be_empty out
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'
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test_expect_success POSIXPERM 'diff --no-index normalizes mode: chmod +x' '
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chmod +x y &&
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cat >expected <<-\EOF &&
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diff --git a/x b/y
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old mode 100644
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new mode 100755
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EOF
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test_expect_code 1 git diff --no-index x y >actual &&
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test_cmp expected actual
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'
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test_expect_success POSIXPERM 'diff --no-index normalizes: mode not like git mode' '
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chmod 666 x &&
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chmod 777 y &&
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cat >expected <<-\EOF &&
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diff --git a/x b/y
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old mode 100644
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new mode 100755
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EOF
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test_expect_code 1 git diff --no-index x y >actual &&
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test_cmp expected actual
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'
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test_expect_success POSIXPERM,SYMLINKS 'diff --no-index normalizes: mode not like git mode (symlink)' '
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ln -s y z &&
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X_OID=$(git hash-object --stdin <x) &&
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Z_OID=$(printf y | git hash-object --stdin) &&
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cat >expected <<-EOF &&
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diff --git a/x b/x
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deleted file mode 100644
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index $X_OID..$ZERO_OID
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--- a/x
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+++ /dev/null
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@@ -1 +0,0 @@
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-foo
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diff --git a/z b/z
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new file mode 120000
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index $ZERO_OID..$Z_OID
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--- /dev/null
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+++ b/z
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@@ -0,0 +1 @@
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+y
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\ No newline at end of file
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EOF
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test_expect_code 1 git -c core.abbrev=no diff --no-index x z >actual &&
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test_cmp expected actual
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'
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test_expect_success "diff --no-index treats '-' as stdin" '
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cat >expect <<-EOF &&
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diff --git a/- b/a/1
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index $ZERO_OID..$(git hash-object --stdin <a/1) 100644
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--- a/-
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+++ b/a/1
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@@ -1 +1 @@
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-x
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+1
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EOF
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test_write_lines x | test_expect_code 1 \
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git -c core.abbrev=no diff --no-index -- - a/1 >actual &&
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test_cmp expect actual &&
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test_write_lines 1 | git diff --no-index -- a/1 - >actual &&
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test_must_be_empty actual
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'
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test_expect_success "diff --no-index -R treats '-' as stdin" '
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cat >expect <<-EOF &&
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diff --git b/a/1 a/-
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index $(git hash-object --stdin <a/1)..$ZERO_OID 100644
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--- b/a/1
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+++ a/-
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@@ -1 +1 @@
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-1
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+x
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EOF
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test_write_lines x | test_expect_code 1 \
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git -c core.abbrev=no diff --no-index -R -- - a/1 >actual &&
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test_cmp expect actual &&
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test_write_lines 1 | git diff --no-index -R -- a/1 - >actual &&
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test_must_be_empty actual
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'
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test_expect_success 'diff --no-index refuses to diff stdin and a directory' '
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test_must_fail git diff --no-index -- - a </dev/null 2>err &&
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grep "fatal: cannot compare stdin to a directory" err
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'
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test_expect_success PIPE 'diff --no-index refuses to diff a named pipe and a directory' '
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test_when_finished "rm -f pipe" &&
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mkfifo pipe &&
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test_must_fail git diff --no-index -- pipe a 2>err &&
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grep "fatal: cannot compare a named pipe to a directory" err
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'
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test_expect_success PIPE,SYMLINKS 'diff --no-index reads from pipes' '
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test_when_finished "rm -f old new new-link" &&
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mkfifo old &&
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mkfifo new &&
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ln -s new new-link &&
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{
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(test_write_lines a b c >old) &
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} &&
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test_when_finished "kill $! || :" &&
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{
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(test_write_lines a x c >new) &
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} &&
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test_when_finished "kill $! || :" &&
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cat >expect <<-EOF &&
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diff --git a/old b/new-link
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--- a/old
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+++ b/new-link
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@@ -1,3 +1,3 @@
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a
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-b
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+x
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c
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EOF
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test_expect_code 1 git diff --no-index old new-link >actual &&
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test_cmp expect actual
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'
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test_done
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