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t4061-diff-indent.sh
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#!/bin/sh
test_description='Test diff indent heuristic.
'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-diff.sh
# Compare two diff outputs. Ignore "index" lines, because we don't
# care about SHA-1s or file modes.
compare_diff () {
sed -e "/^index /d" <"$1" >.tmp-1
sed -e "/^index /d" <"$2" >.tmp-2
test_cmp .tmp-1 .tmp-2 && rm -f .tmp-1 .tmp-2
}
# Compare blame output using the expectation for a diff as reference.
# Only look for the lines coming from non-boundary commits.
compare_blame () {
sed -n -e "1,4d" -e "s/^+//p" <"$1" >.tmp-1
sed -ne "s/^[^^][^)]*) *//p" <"$2" >.tmp-2
test_cmp .tmp-1 .tmp-2 && rm -f .tmp-1 .tmp-2
}
test_expect_success 'prepare' '
cat <<-\EOF >spaces.txt &&
1
2
a
b
3
4
EOF
cat <<-\EOF >functions.c &&
1
2
/* function */
foo() {
foo
}
3
4
EOF
git add spaces.txt functions.c &&
test_tick &&
git commit -m initial &&
git branch old &&
cat <<-\EOF >spaces.txt &&
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2
a
b
a
b
3
4
EOF
cat <<-\EOF >functions.c &&
1
2
/* function */
bar() {
foo
}
/* function */
foo() {
foo
}
3
4
EOF
git add spaces.txt functions.c &&
test_tick &&
git commit -m initial &&
git branch new &&
tr "_" " " <<-\EOF >spaces-expect &&
diff --git a/spaces.txt b/spaces.txt
--- a/spaces.txt
+++ b/spaces.txt
@@ -3,5 +3,8 @@
a
_
b
+a
+
+b
3
4
EOF
tr "_" " " <<-\EOF >spaces-compacted-expect &&
diff --git a/spaces.txt b/spaces.txt
--- a/spaces.txt
+++ b/spaces.txt
@@ -2,6 +2,9 @@
2
a
_
+b
+a
+
b
3
4
EOF
tr "_" " " <<-\EOF >functions-expect &&
diff --git a/functions.c b/functions.c
--- a/functions.c
+++ b/functions.c
@@ -1,6 +1,11 @@
1
2
/* function */
+bar() {
+ foo
+}
+
+/* function */
foo() {
foo
}
EOF
tr "_" " " <<-\EOF >functions-compacted-expect
diff --git a/functions.c b/functions.c
--- a/functions.c
+++ b/functions.c
@@ -1,5 +1,10 @@
1
2
+/* function */
+bar() {
+ foo
+}
+
/* function */
foo() {
foo
EOF
'
# --- diff tests ----------------------------------------------------------
test_expect_success 'diff: ugly spaces' '
git diff --no-indent-heuristic old new -- spaces.txt >out &&
compare_diff spaces-expect out
'
test_expect_success 'diff: --no-indent-heuristic overrides config' '
git -c diff.indentHeuristic=true diff --no-indent-heuristic old new -- spaces.txt >out2 &&
compare_diff spaces-expect out2
'
test_expect_success 'diff: nice spaces with --indent-heuristic' '
git -c diff.indentHeuristic=false diff --indent-heuristic old new -- spaces.txt >out-compacted &&
compare_diff spaces-compacted-expect out-compacted
'
test_expect_success 'diff: nice spaces with diff.indentHeuristic=true' '
git -c diff.indentHeuristic=true diff old new -- spaces.txt >out-compacted2 &&
compare_diff spaces-compacted-expect out-compacted2
'
test_expect_success 'diff: --indent-heuristic with --patience' '
git diff --indent-heuristic --patience old new -- spaces.txt >out-compacted3 &&
compare_diff spaces-compacted-expect out-compacted3
'
test_expect_success 'diff: --indent-heuristic with --histogram' '
git diff --indent-heuristic --histogram old new -- spaces.txt >out-compacted4 &&
compare_diff spaces-compacted-expect out-compacted4
'
test_expect_success 'diff: ugly functions' '
git diff --no-indent-heuristic old new -- functions.c >out &&
compare_diff functions-expect out
'
test_expect_success 'diff: nice functions with --indent-heuristic' '
git diff --indent-heuristic old new -- functions.c >out-compacted &&
compare_diff functions-compacted-expect out-compacted
'
# --- blame tests ---------------------------------------------------------
test_expect_success 'blame: nice spaces with --indent-heuristic' '
git blame --indent-heuristic old..new -- spaces.txt >out-blame-compacted &&
compare_blame spaces-compacted-expect out-blame-compacted
'
test_expect_success 'blame: nice spaces with diff.indentHeuristic=true' '
git -c diff.indentHeuristic=true blame old..new -- spaces.txt >out-blame-compacted2 &&
compare_blame spaces-compacted-expect out-blame-compacted2
'
test_expect_success 'blame: ugly spaces with --no-indent-heuristic' '
git blame --no-indent-heuristic old..new -- spaces.txt >out-blame &&
compare_blame spaces-expect out-blame
'
test_expect_success 'blame: ugly spaces with diff.indentHeuristic=false' '
git -c diff.indentHeuristic=false blame old..new -- spaces.txt >out-blame2 &&
compare_blame spaces-expect out-blame2
'
test_expect_success 'blame: --no-indent-heuristic overrides config' '
git -c diff.indentHeuristic=true blame --no-indent-heuristic old..new -- spaces.txt >out-blame3 &&
git blame old..new -- spaces.txt >out-blame &&
compare_blame spaces-expect out-blame3
'
test_expect_success 'blame: --indent-heuristic overrides config' '
git -c diff.indentHeuristic=false blame --indent-heuristic old..new -- spaces.txt >out-blame-compacted3 &&
compare_blame spaces-compacted-expect out-blame-compacted2
'
# --- diff-tree tests -----------------------------------------------------
test_expect_success 'diff-tree: nice spaces with --indent-heuristic' '
git diff-tree --indent-heuristic -p old new -- spaces.txt >out-diff-tree-compacted &&
compare_diff spaces-compacted-expect out-diff-tree-compacted
'
test_expect_success 'diff-tree: nice spaces with diff.indentHeuristic=true' '
git -c diff.indentHeuristic=true diff-tree -p old new -- spaces.txt >out-diff-tree-compacted2 &&
compare_diff spaces-compacted-expect out-diff-tree-compacted2
'
test_expect_success 'diff-tree: ugly spaces with --no-indent-heuristic' '
git diff-tree --no-indent-heuristic -p old new -- spaces.txt >out-diff-tree &&
compare_diff spaces-expect out-diff-tree
'
test_expect_success 'diff-tree: ugly spaces with diff.indentHeuristic=false' '
git -c diff.indentHeuristic=false diff-tree -p old new -- spaces.txt >out-diff-tree2 &&
compare_diff spaces-expect out-diff-tree2
'
test_expect_success 'diff-tree: --indent-heuristic overrides config' '
git -c diff.indentHeuristic=false diff-tree --indent-heuristic -p old new -- spaces.txt >out-diff-tree-compacted3 &&
compare_diff spaces-compacted-expect out-diff-tree-compacted3
'
test_expect_success 'diff-tree: --no-indent-heuristic overrides config' '
git -c diff.indentHeuristic=true diff-tree --no-indent-heuristic -p old new -- spaces.txt >out-diff-tree3 &&
compare_diff spaces-expect out-diff-tree3
'
# --- diff-index tests ----------------------------------------------------
test_expect_success 'diff-index: nice spaces with --indent-heuristic' '
git checkout -B diff-index &&
git reset --soft HEAD~ &&
git diff-index --indent-heuristic -p old -- spaces.txt >out-diff-index-compacted &&
compare_diff spaces-compacted-expect out-diff-index-compacted &&
git checkout -f main
'
test_expect_success 'diff-index: nice spaces with diff.indentHeuristic=true' '
git checkout -B diff-index &&
git reset --soft HEAD~ &&
git -c diff.indentHeuristic=true diff-index -p old -- spaces.txt >out-diff-index-compacted2 &&
compare_diff spaces-compacted-expect out-diff-index-compacted2 &&
git checkout -f main
'
test_expect_success 'diff-index: ugly spaces with --no-indent-heuristic' '
git checkout -B diff-index &&
git reset --soft HEAD~ &&
git diff-index --no-indent-heuristic -p old -- spaces.txt >out-diff-index &&
compare_diff spaces-expect out-diff-index &&
git checkout -f main
'
test_expect_success 'diff-index: ugly spaces with diff.indentHeuristic=false' '
git checkout -B diff-index &&
git reset --soft HEAD~ &&
git -c diff.indentHeuristic=false diff-index -p old -- spaces.txt >out-diff-index2 &&
compare_diff spaces-expect out-diff-index2 &&
git checkout -f main
'
test_expect_success 'diff-index: --indent-heuristic overrides config' '
git checkout -B diff-index &&
git reset --soft HEAD~ &&
git -c diff.indentHeuristic=false diff-index --indent-heuristic -p old -- spaces.txt >out-diff-index-compacted3 &&
compare_diff spaces-compacted-expect out-diff-index-compacted3 &&
git checkout -f main
'
test_expect_success 'diff-index: --no-indent-heuristic overrides config' '
git checkout -B diff-index &&
git reset --soft HEAD~ &&
git -c diff.indentHeuristic=true diff-index --no-indent-heuristic -p old -- spaces.txt >out-diff-index3 &&
compare_diff spaces-expect out-diff-index3 &&
git checkout -f main
'
# --- diff-files tests ----------------------------------------------------
test_expect_success 'diff-files: nice spaces with --indent-heuristic' '
git checkout -B diff-files &&
git reset HEAD~ &&
git diff-files --indent-heuristic -p spaces.txt >out-diff-files-raw &&
grep -v index out-diff-files-raw >out-diff-files-compacted &&
compare_diff spaces-compacted-expect out-diff-files-compacted &&
git checkout -f main
'
test_expect_success 'diff-files: nice spaces with diff.indentHeuristic=true' '
git checkout -B diff-files &&
git reset HEAD~ &&
git -c diff.indentHeuristic=true diff-files -p spaces.txt >out-diff-files-raw2 &&
grep -v index out-diff-files-raw2 >out-diff-files-compacted2 &&
compare_diff spaces-compacted-expect out-diff-files-compacted2 &&
git checkout -f main
'
test_expect_success 'diff-files: ugly spaces with --no-indent-heuristic' '
git checkout -B diff-files &&
git reset HEAD~ &&
git diff-files --no-indent-heuristic -p spaces.txt >out-diff-files-raw &&
grep -v index out-diff-files-raw >out-diff-files &&
compare_diff spaces-expect out-diff-files &&
git checkout -f main
'
test_expect_success 'diff-files: ugly spaces with diff.indentHeuristic=false' '
git checkout -B diff-files &&
git reset HEAD~ &&
git -c diff.indentHeuristic=false diff-files -p spaces.txt >out-diff-files-raw2 &&
grep -v index out-diff-files-raw2 >out-diff-files &&
compare_diff spaces-expect out-diff-files &&
git checkout -f main
'
test_expect_success 'diff-files: --indent-heuristic overrides config' '
git checkout -B diff-files &&
git reset HEAD~ &&
git -c diff.indentHeuristic=false diff-files --indent-heuristic -p spaces.txt >out-diff-files-raw3 &&
grep -v index out-diff-files-raw3 >out-diff-files-compacted &&
compare_diff spaces-compacted-expect out-diff-files-compacted &&
git checkout -f main
'
test_expect_success 'diff-files: --no-indent-heuristic overrides config' '
git checkout -B diff-files &&
git reset HEAD~ &&
git -c diff.indentHeuristic=true diff-files --no-indent-heuristic -p spaces.txt >out-diff-files-raw4 &&
grep -v index out-diff-files-raw4 >out-diff-files &&
compare_diff spaces-expect out-diff-files &&
git checkout -f main
'
test_done