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|
#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
test_description='Break and then rename
We have two very different files, file0 and file1, registered in a tree.
We update file1 so drastically that it is more similar to file0, and
then remove file0. With -B, changes to file1 should be broken into
separate delete and create, resulting in removal of file0, removal of
original file1 and creation of completely rewritten file1. The latter
two are then merged back into a single "complete rewrite".
Further, with -B and -M together, these three modifications should
turn into rename-edit of file0 into file1.
Starting from the same two files in the tree, we swap file0 and file1.
With -B, this should be detected as two complete rewrites.
Further, with -B and -M together, these should turn into two renames.
'
. ./test-lib.sh
. "$TEST_DIRECTORY"/diff-lib.sh ;# test-lib chdir's into trash
test_expect_success \
setup \
'cat "$TEST_DIRECTORY"/../README >file0 &&
cat "$TEST_DIRECTORY"/../COPYING >file1 &&
git update-index --add file0 file1 &&
tree=$(git write-tree) &&
echo "$tree"'
test_expect_success \
'change file1 with copy-edit of file0 and remove file0' \
'sed -e "s/git/GIT/" file0 >file1 &&
rm -f file0 &&
git update-index --remove file0 file1'
test_expect_success \
'run diff with -B' \
'git diff-index -B --cached "$tree" >current'
cat >expected <<\EOF
:100644 000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 0000000000000000000000000000000000000000 D file0
:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 11e331465a89c394dc25c780de230043750c1ec8 M100 file1
EOF
test_expect_success \
'validate result of -B (#1)' \
'compare_diff_raw expected current'
test_expect_success \
'run diff with -B and -M' \
'git diff-index -B -M "$tree" >current'
cat >expected <<\EOF
:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 08bb2fb671deff4c03a4d4a0a1315dff98d5732c R100 file0 file1
EOF
test_expect_success \
'validate result of -B -M (#2)' \
'compare_diff_raw expected current'
test_expect_success \
'swap file0 and file1' \
'rm -f file0 file1 &&
git read-tree -m $tree &&
git checkout-index -f -u -a &&
mv file0 tmp &&
mv file1 file0 &&
mv tmp file1 &&
git update-index file0 file1'
test_expect_success \
'run diff with -B' \
'git diff-index -B "$tree" >current'
cat >expected <<\EOF
:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 6ff87c4664981e4397625791c8ea3bbb5f2279a3 M100 file0
:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M100 file1
EOF
test_expect_success \
'validate result of -B (#3)' \
'compare_diff_raw expected current'
test_expect_success \
'run diff with -B and -M' \
'git diff-index -B -M "$tree" >current'
cat >expected <<\EOF
:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 6ff87c4664981e4397625791c8ea3bbb5f2279a3 R100 file1 file0
:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 R100 file0 file1
EOF
test_expect_success \
'validate result of -B -M (#4)' \
'compare_diff_raw expected current'
test_expect_success \
'make file0 into something completely different' \
'rm -f file0 &&
test_ln_s_add frotz file0 &&
git update-index file1'
test_expect_success \
'run diff with -B' \
'git diff-index -B "$tree" >current'
cat >expected <<\EOF
:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M100 file1
EOF
test_expect_success \
'validate result of -B (#5)' \
'compare_diff_raw expected current'
test_expect_success \
'run diff with -B -M' \
'git diff-index -B -M "$tree" >current'
# file0 changed from regular to symlink. file1 is very close to the preimage of file0.
# the change does not make file0 disappear, so file1 is denoted as a copy of file0
cat >expected <<\EOF
:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 C file0 file1
EOF
test_expect_success \
'validate result of -B -M (#6)' \
'compare_diff_raw expected current'
test_expect_success \
'run diff with -M' \
'git diff-index -M "$tree" >current'
# This should not mistake file0 as the copy source of new file1
# due to type differences.
cat >expected <<\EOF
:100644 120000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 67be421f88824578857624f7b3dc75e99a8a1481 T file0
:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 M file1
EOF
test_expect_success \
'validate result of -M (#7)' \
'compare_diff_raw expected current'
test_expect_success \
'file1 edited to look like file0 and file0 rename-edited to file2' \
'rm -f file0 file1 &&
git read-tree -m $tree &&
git checkout-index -f -u -a &&
sed -e "s/git/GIT/" file0 >file1 &&
sed -e "s/git/GET/" file0 >file2 &&
rm -f file0 &&
git update-index --add --remove file0 file1 file2'
test_expect_success \
'run diff with -B' \
'git diff-index -B "$tree" >current'
cat >expected <<\EOF
:100644 000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 0000000000000000000000000000000000000000 D file0
:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 08bb2fb671deff4c03a4d4a0a1315dff98d5732c M100 file1
:000000 100644 0000000000000000000000000000000000000000 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 A file2
EOF
test_expect_success \
'validate result of -B (#8)' \
'compare_diff_raw expected current'
test_expect_success \
'run diff with -B -C' \
'git diff-index -B -C "$tree" >current'
cat >expected <<\EOF
:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 08bb2fb671deff4c03a4d4a0a1315dff98d5732c C095 file0 file1
:100644 100644 f5deac7be59e7eeab8657fd9ae706fd6a57daed2 59f832e5c8b3f7e486be15ad0cd3e95ba9af8998 R095 file0 file2
EOF
test_expect_success \
'validate result of -B -M (#9)' \
'compare_diff_raw expected current'
test_done
|
