0940e5f211
We would allow rename detection to do copy detection even when asked purely for renames. That confuses users, but more importantly it can terminally confuse the recursive merge rename logic. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
189 lines
6.1 KiB
Bash
Executable File
189 lines
6.1 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2005 Junio C Hamano
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#
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test_description='Break and then rename
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We have two very different files, file0 and file1, registered in a tree.
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We update file1 so drastically that it is more similar to file0, and
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then remove file0. With -B, changes to file1 should be broken into
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separate delete and create, resulting in removal of file0, removal of
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original file1 and creation of completely rewritten file1.
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Further, with -B and -M together, these three modifications should
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turn into rename-edit of file0 into file1.
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Starting from the same two files in the tree, we swap file0 and file1.
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With -B, this should be detected as two complete rewrites, resulting in
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four changes in total.
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Further, with -B and -M together, these should turn into two renames.
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'
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/diff-lib.sh ;# test-lib chdir's into trash
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test_expect_success \
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setup \
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'cat "$TEST_DIRECTORY"/../README >file0 &&
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cat "$TEST_DIRECTORY"/../COPYING >file1 &&
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git update-index --add file0 file1 &&
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tree=$(git write-tree) &&
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echo "$tree"'
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test_expect_success \
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'change file1 with copy-edit of file0 and remove file0' \
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'sed -e "s/git/GIT/" file0 >file1 &&
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rm -f file0 &&
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git update-index --remove file0 file1'
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test_expect_success \
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'run diff with -B' \
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'git diff-index -B --cached "$tree" >current'
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cat >expected <<\EOF
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:100644 000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 0000000000000000000000000000000000000000 D file0
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 11e331465a89c394dc25c780de230043750c1ec8 M100 file1
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EOF
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test_expect_success \
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'validate result of -B (#1)' \
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'compare_diff_raw expected current'
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test_expect_success \
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'run diff with -B and -M' \
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'git diff-index -B -M "$tree" >current'
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cat >expected <<\EOF
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:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 08bb2fb671deff4c03a4d4a0a1315dff98d5732c R100 file0 file1
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EOF
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test_expect_success \
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'validate result of -B -M (#2)' \
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'compare_diff_raw expected current'
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test_expect_success \
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'swap file0 and file1' \
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'rm -f file0 file1 &&
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git read-tree -m $tree &&
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git checkout-index -f -u -a &&
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mv file0 tmp &&
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mv file1 file0 &&
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mv tmp file1 &&
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git update-index file0 file1'
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test_expect_success \
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'run diff with -B' \
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'git diff-index -B "$tree" >current'
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cat >expected <<\EOF
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:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 6ff87c4664981e4397625791c8ea3bbb5f2279a3 M100 file0
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M100 file1
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EOF
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test_expect_success \
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'validate result of -B (#3)' \
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'compare_diff_raw expected current'
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test_expect_success \
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'run diff with -B and -M' \
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'git diff-index -B -M "$tree" >current'
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cat >expected <<\EOF
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 6ff87c4664981e4397625791c8ea3bbb5f2279a3 R100 file1 file0
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:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 R100 file0 file1
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EOF
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test_expect_success \
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'validate result of -B -M (#4)' \
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'compare_diff_raw expected current'
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test_expect_success SYMLINKS \
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'make file0 into something completely different' \
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'rm -f file0 &&
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ln -s frotz file0 &&
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git update-index file0 file1'
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test_expect_success \
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'run diff with -B' \
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'git diff-index -B "$tree" >current'
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cat >expected <<\EOF
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:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M100 file1
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EOF
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test_expect_success SYMLINKS \
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'validate result of -B (#5)' \
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'compare_diff_raw expected current'
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test_expect_success \
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'run diff with -B -M' \
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'git diff-index -B -M "$tree" >current'
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# file0 changed from regular to symlink. file1 is very close to the preimage of file0.
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# because we break file0, file1 can become a rename of it.
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cat >expected <<\EOF
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:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 R file0 file1
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EOF
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test_expect_success SYMLINKS \
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'validate result of -B -M (#6)' \
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'compare_diff_raw expected current'
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test_expect_success \
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'run diff with -M' \
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'git diff-index -M "$tree" >current'
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# This should not mistake file0 as the copy source of new file1
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# due to type differences.
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cat >expected <<\EOF
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:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M file1
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EOF
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test_expect_success SYMLINKS \
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'validate result of -M (#7)' \
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'compare_diff_raw expected current'
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test_expect_success \
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'file1 edited to look like file0 and file0 rename-edited to file2' \
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'rm -f file0 file1 &&
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git read-tree -m $tree &&
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git checkout-index -f -u -a &&
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sed -e "s/git/GIT/" file0 >file1 &&
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sed -e "s/git/GET/" file0 >file2 &&
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rm -f file0 &&
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git update-index --add --remove file0 file1 file2'
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test_expect_success \
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'run diff with -B' \
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'git diff-index -B "$tree" >current'
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cat >expected <<\EOF
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:100644 000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 0000000000000000000000000000000000000000 D file0
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:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 08bb2fb671deff4c03a4d4a0a1315dff98d5732c M100 file1
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:000000 100644 0000000000000000000000000000000000000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 A file2
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EOF
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test_expect_success \
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'validate result of -B (#8)' \
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'compare_diff_raw expected current'
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test_expect_success \
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'run diff with -B -C' \
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'git diff-index -B -C "$tree" >current'
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cat >expected <<\EOF
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:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 08bb2fb671deff4c03a4d4a0a1315dff98d5732c C095 file0 file1
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:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 59f832e5c8b3f7e486be15ad0cd3e95ba9af8998 R095 file0 file2
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EOF
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test_expect_success \
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'validate result of -B -M (#9)' \
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'compare_diff_raw expected current'
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test_done
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