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35e2d03c2c
When a file that ends with an incomplete line is expressed as a complete rewrite with the -B option, git diff incorrectly appends the incomplete line indicator "\ No newline at end of file" after such a line, rather than writing it on a line of its own (the output codepath for normal output without -B does not have this problem). Add a LF after the incomplete line before writing the "\ No newline ..." out to fix this. Add a couple of tests to confirm that the indicator comment is generated on its own line in both plain diff and rewrite mode. Signed-off-by: Adam Butcher <dev.lists@jessamine.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
100 lines
2 KiB
Bash
Executable file
100 lines
2 KiB
Bash
Executable file
#!/bin/sh
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test_description='rewrite diff'
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. ./test-lib.sh
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test_expect_success setup '
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cat "$TEST_DIRECTORY"/../COPYING >test &&
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git add test &&
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tr \
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"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" \
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"nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM" \
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<"$TEST_DIRECTORY"/../COPYING >test &&
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echo "to be deleted" >test2 &&
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git add test2
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'
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test_expect_success 'detect rewrite' '
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actual=$(git diff-files -B --summary test) &&
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expr "$actual" : " rewrite test ([0-9]*%)$" || {
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echo "Eh? <<$actual>>"
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false
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}
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'
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cat >expect <<EOF
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diff --git a/test2 b/test2
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deleted file mode 100644
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index 4202011..0000000
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--- a/test2
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+++ /dev/null
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@@ -1 +0,0 @@
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-to be deleted
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EOF
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test_expect_success 'show deletion diff without -D' '
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rm test2 &&
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git diff -- test2 >actual &&
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test_cmp expect actual
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'
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cat >expect <<EOF
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diff --git a/test2 b/test2
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deleted file mode 100644
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index 4202011..0000000
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EOF
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test_expect_success 'suppress deletion diff with -D' '
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git diff -D -- test2 >actual &&
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test_cmp expect actual
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'
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test_expect_success 'show deletion diff with -B' '
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git diff -B -- test >actual &&
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grep "Linus Torvalds" actual
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'
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test_expect_success 'suppress deletion diff with -B -D' '
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git diff -B -D -- test >actual &&
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grep -v "Linus Torvalds" actual
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'
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test_expect_success 'prepare a file that ends with an incomplete line' '
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test_seq 1 99 >seq &&
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printf 100 >>seq &&
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git add seq &&
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git commit seq -m seq
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'
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test_expect_success 'rewrite the middle 90% of sequence file and terminate with newline' '
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test_seq 1 5 >seq &&
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test_seq 9331 9420 >>seq &&
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test_seq 96 100 >>seq
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'
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test_expect_success 'confirm that sequence file is considered a rewrite' '
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git diff -B seq >res &&
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grep "dissimilarity index" res
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'
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test_expect_success 'no newline at eof is on its own line without -B' '
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git diff seq >res &&
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grep "^\\\\ " res &&
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! grep "^..*\\\\ " res
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'
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test_expect_success 'no newline at eof is on its own line with -B' '
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git diff -B seq >res &&
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grep "^\\\\ " res &&
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! grep "^..*\\\\ " res
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'
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test_done
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