#!/bin/sh test_description='rewrite diff' . ./test-lib.sh test_expect_success setup ' cat "$TEST_DIRECTORY"/../COPYING >test && git add test && tr \ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" \ "nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM" \ <"$TEST_DIRECTORY"/../COPYING >test && echo "to be deleted" >test2 && git add test2 ' test_expect_success 'detect rewrite' ' actual=$(git diff-files -B --summary test) && verbose expr "$actual" : " rewrite test ([0-9]*%)$" ' cat >expect <actual && test_cmp expect actual ' cat >expect <actual && test_cmp expect actual ' test_expect_success 'show deletion diff with -B' ' git diff -B -- test >actual && grep "Linus Torvalds" actual ' test_expect_success 'suppress deletion diff with -B -D' ' git diff -B -D -- test >actual && grep -v "Linus Torvalds" actual ' test_expect_success 'prepare a file that ends with an incomplete line' ' test_seq 1 99 >seq && printf 100 >>seq && git add seq && git commit seq -m seq ' test_expect_success 'rewrite the middle 90% of sequence file and terminate with newline' ' test_seq 1 5 >seq && test_seq 9331 9420 >>seq && test_seq 96 100 >>seq ' test_expect_success 'confirm that sequence file is considered a rewrite' ' git diff -B seq >res && grep "dissimilarity index" res ' test_expect_success 'no newline at eof is on its own line without -B' ' git diff seq >res && grep "^\\\\ " res && ! grep "^..*\\\\ " res ' test_expect_success 'no newline at eof is on its own line with -B' ' git diff -B seq >res && grep "^\\\\ " res && ! grep "^..*\\\\ " res ' test_done