mirror of
https://github.com/git/git.git
synced 2024-12-12 19:34:35 +08:00
12bd17521c
Performance optimization work on the rename detection continues. * en/diffcore-rename: merge-ort: call diffcore_rename() directly gitdiffcore doc: mention new preliminary step for rename detection diffcore-rename: guide inexact rename detection based on basenames diffcore-rename: complete find_basename_matches() diffcore-rename: compute basenames of source and dest candidates t4001: add a test comparing basename similarity and content similarity diffcore-rename: filter rename_src list when possible diffcore-rename: no point trying to find a match better than exact
290 lines
6.6 KiB
Bash
Executable File
290 lines
6.6 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2005 Junio C Hamano
|
|
#
|
|
|
|
test_description='Test rename detection in diff engine.
|
|
|
|
'
|
|
. ./test-lib.sh
|
|
. "$TEST_DIRECTORY"/lib-diff.sh
|
|
|
|
test_expect_success 'setup' '
|
|
cat >path0 <<-\EOF &&
|
|
Line 1
|
|
Line 2
|
|
Line 3
|
|
Line 4
|
|
Line 5
|
|
Line 6
|
|
Line 7
|
|
Line 8
|
|
Line 9
|
|
Line 10
|
|
line 11
|
|
Line 12
|
|
Line 13
|
|
Line 14
|
|
Line 15
|
|
EOF
|
|
cat >expected <<-\EOF &&
|
|
diff --git a/path0 b/path1
|
|
rename from path0
|
|
rename to path1
|
|
--- a/path0
|
|
+++ b/path1
|
|
@@ -8,7 +8,7 @@ Line 7
|
|
Line 8
|
|
Line 9
|
|
Line 10
|
|
-line 11
|
|
+Line 11
|
|
Line 12
|
|
Line 13
|
|
Line 14
|
|
EOF
|
|
cat >no-rename <<-\EOF
|
|
diff --git a/path0 b/path0
|
|
deleted file mode 100644
|
|
index fdbec44..0000000
|
|
--- a/path0
|
|
+++ /dev/null
|
|
@@ -1,15 +0,0 @@
|
|
-Line 1
|
|
-Line 2
|
|
-Line 3
|
|
-Line 4
|
|
-Line 5
|
|
-Line 6
|
|
-Line 7
|
|
-Line 8
|
|
-Line 9
|
|
-Line 10
|
|
-line 11
|
|
-Line 12
|
|
-Line 13
|
|
-Line 14
|
|
-Line 15
|
|
diff --git a/path1 b/path1
|
|
new file mode 100644
|
|
index 0000000..752c50e
|
|
--- /dev/null
|
|
+++ b/path1
|
|
@@ -0,0 +1,15 @@
|
|
+Line 1
|
|
+Line 2
|
|
+Line 3
|
|
+Line 4
|
|
+Line 5
|
|
+Line 6
|
|
+Line 7
|
|
+Line 8
|
|
+Line 9
|
|
+Line 10
|
|
+Line 11
|
|
+Line 12
|
|
+Line 13
|
|
+Line 14
|
|
+Line 15
|
|
EOF
|
|
'
|
|
|
|
test_expect_success \
|
|
'update-index --add a file.' \
|
|
'git update-index --add path0'
|
|
|
|
test_expect_success \
|
|
'write that tree.' \
|
|
'tree=$(git write-tree) && echo $tree'
|
|
|
|
sed -e 's/line/Line/' <path0 >path1
|
|
rm -f path0
|
|
test_expect_success \
|
|
'renamed and edited the file.' \
|
|
'git update-index --add --remove path0 path1'
|
|
|
|
test_expect_success \
|
|
'git diff-index -p -M after rename and editing.' \
|
|
'git diff-index -p -M $tree >current'
|
|
|
|
|
|
test_expect_success \
|
|
'validate the output.' \
|
|
'compare_diff_patch current expected'
|
|
|
|
test_expect_success 'test diff.renames=true' '
|
|
git -c diff.renames=true diff --cached $tree >current &&
|
|
compare_diff_patch current expected
|
|
'
|
|
|
|
test_expect_success 'test diff.renames=false' '
|
|
git -c diff.renames=false diff --cached $tree >current &&
|
|
compare_diff_patch current no-rename
|
|
'
|
|
|
|
test_expect_success 'test diff.renames unset' '
|
|
git diff --cached $tree >current &&
|
|
compare_diff_patch current expected
|
|
'
|
|
|
|
test_expect_success 'favour same basenames over different ones' '
|
|
cp path1 another-path &&
|
|
git add another-path &&
|
|
git commit -m 1 &&
|
|
git rm path1 &&
|
|
mkdir subdir &&
|
|
git mv another-path subdir/path1 &&
|
|
git status >out &&
|
|
test_i18ngrep "renamed: .*path1 -> subdir/path1" out
|
|
'
|
|
|
|
test_expect_success 'test diff.renames=true for git status' '
|
|
git -c diff.renames=true status >out &&
|
|
test_i18ngrep "renamed: .*path1 -> subdir/path1" out
|
|
'
|
|
|
|
test_expect_success 'test diff.renames=false for git status' '
|
|
git -c diff.renames=false status >out &&
|
|
test_i18ngrep ! "renamed: .*path1 -> subdir/path1" out &&
|
|
test_i18ngrep "new file: .*subdir/path1" out &&
|
|
test_i18ngrep "deleted: .*[^/]path1" out
|
|
'
|
|
|
|
test_expect_success 'favour same basenames even with minor differences' '
|
|
git show HEAD:path1 | sed "s/15/16/" > subdir/path1 &&
|
|
git status >out &&
|
|
test_i18ngrep "renamed: .*path1 -> subdir/path1" out
|
|
'
|
|
|
|
test_expect_success 'two files with same basename and same content' '
|
|
git reset --hard &&
|
|
mkdir -p dir/A dir/B &&
|
|
cp path1 dir/A/file &&
|
|
cp path1 dir/B/file &&
|
|
git add dir &&
|
|
git commit -m 2 &&
|
|
git mv dir other-dir &&
|
|
git status >out &&
|
|
test_i18ngrep "renamed: .*dir/A/file -> other-dir/A/file" out
|
|
'
|
|
|
|
test_expect_success 'setup for many rename source candidates' '
|
|
git reset --hard &&
|
|
for i in 0 1 2 3 4 5 6 7 8 9;
|
|
do
|
|
for j in 0 1 2 3 4 5 6 7 8 9;
|
|
do
|
|
echo "$i$j" >"path$i$j"
|
|
done
|
|
done &&
|
|
git add "path??" &&
|
|
test_tick &&
|
|
git commit -m "hundred" &&
|
|
(cat path1 && echo new) >new-path &&
|
|
echo old >>path1 &&
|
|
git add new-path path1 &&
|
|
git diff -l 4 -C -C --cached --name-status >actual 2>actual.err &&
|
|
sed -e "s/^\([CM]\)[0-9]* /\1 /" actual >actual.munged &&
|
|
cat >expect <<-EOF &&
|
|
C path1 new-path
|
|
M path1
|
|
EOF
|
|
test_cmp expect actual.munged &&
|
|
grep warning actual.err
|
|
'
|
|
|
|
test_expect_success 'rename pretty print with nothing in common' '
|
|
mkdir -p a/b/ &&
|
|
: >a/b/c &&
|
|
git add a/b/c &&
|
|
git commit -m "create a/b/c" &&
|
|
mkdir -p c/b/ &&
|
|
git mv a/b/c c/b/a &&
|
|
git commit -m "a/b/c -> c/b/a" &&
|
|
git diff -M --summary HEAD^ HEAD >output &&
|
|
test_i18ngrep " a/b/c => c/b/a " output &&
|
|
git diff -M --stat HEAD^ HEAD >output &&
|
|
test_i18ngrep " a/b/c => c/b/a " output
|
|
'
|
|
|
|
test_expect_success 'rename pretty print with common prefix' '
|
|
mkdir -p c/d &&
|
|
git mv c/b/a c/d/e &&
|
|
git commit -m "c/b/a -> c/d/e" &&
|
|
git diff -M --summary HEAD^ HEAD >output &&
|
|
test_i18ngrep " c/{b/a => d/e} " output &&
|
|
git diff -M --stat HEAD^ HEAD >output &&
|
|
test_i18ngrep " c/{b/a => d/e} " output
|
|
'
|
|
|
|
test_expect_success 'rename pretty print with common suffix' '
|
|
mkdir d &&
|
|
git mv c/d/e d/e &&
|
|
git commit -m "c/d/e -> d/e" &&
|
|
git diff -M --summary HEAD^ HEAD >output &&
|
|
test_i18ngrep " {c/d => d}/e " output &&
|
|
git diff -M --stat HEAD^ HEAD >output &&
|
|
test_i18ngrep " {c/d => d}/e " output
|
|
'
|
|
|
|
test_expect_success 'rename pretty print with common prefix and suffix' '
|
|
mkdir d/f &&
|
|
git mv d/e d/f/e &&
|
|
git commit -m "d/e -> d/f/e" &&
|
|
git diff -M --summary HEAD^ HEAD >output &&
|
|
test_i18ngrep " d/{ => f}/e " output &&
|
|
git diff -M --stat HEAD^ HEAD >output &&
|
|
test_i18ngrep " d/{ => f}/e " output
|
|
'
|
|
|
|
test_expect_success 'rename pretty print common prefix and suffix overlap' '
|
|
mkdir d/f/f &&
|
|
git mv d/f/e d/f/f/e &&
|
|
git commit -m "d/f/e d/f/f/e" &&
|
|
git diff -M --summary HEAD^ HEAD >output &&
|
|
test_i18ngrep " d/f/{ => f}/e " output &&
|
|
git diff -M --stat HEAD^ HEAD >output &&
|
|
test_i18ngrep " d/f/{ => f}/e " output
|
|
'
|
|
|
|
test_expect_success 'diff-tree -l0 defaults to a big rename limit, not zero' '
|
|
test_write_lines line1 line2 line3 >myfile &&
|
|
git add myfile &&
|
|
git commit -m x &&
|
|
|
|
test_write_lines line1 line2 line4 >myotherfile &&
|
|
git rm myfile &&
|
|
git add myotherfile &&
|
|
git commit -m x &&
|
|
|
|
git diff-tree -M -l0 HEAD HEAD^ >actual &&
|
|
# Verify that a rename from myotherfile to myfile was detected
|
|
grep "myotherfile.*myfile" actual
|
|
'
|
|
|
|
test_expect_success 'basename similarity vs best similarity' '
|
|
mkdir subdir &&
|
|
test_write_lines line1 line2 line3 line4 line5 \
|
|
line6 line7 line8 line9 line10 >subdir/file.txt &&
|
|
git add subdir/file.txt &&
|
|
git commit -m "base txt" &&
|
|
|
|
git rm subdir/file.txt &&
|
|
test_write_lines line1 line2 line3 line4 line5 \
|
|
line6 line7 line8 >file.txt &&
|
|
test_write_lines line1 line2 line3 line4 line5 \
|
|
line6 line7 line8 line9 >file.md &&
|
|
git add file.txt file.md &&
|
|
git commit -a -m "rename" &&
|
|
git diff-tree -r -M --name-status HEAD^ HEAD >actual &&
|
|
# subdir/file.txt is 88% similar to file.md, 78% similar to file.txt,
|
|
# but since same basenames are checked first...
|
|
cat >expected <<-\EOF &&
|
|
A file.md
|
|
R078 subdir/file.txt file.txt
|
|
EOF
|
|
test_cmp expected actual
|
|
'
|
|
|
|
test_done
|