f4b05a4947
A new whitespace "rule" is added that sets the tab width to use for whitespace checks and fix-ups and replaces the hard-coded constant 8. Since the setting is part of the rules, it can be set per file using .gitattributes. The new configuration is backwards compatible because older git versions simply ignore unknown whitespace rules. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
560 lines
12 KiB
Bash
Executable File
560 lines
12 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2006 Johannes E. Schindelin
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#
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test_description='Test special whitespace in diff engine.
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'
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. ./test-lib.sh
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. "$TEST_DIRECTORY"/diff-lib.sh
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# Ray Lehtiniemi's example
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cat << EOF > x
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do {
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nothing;
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} while (0);
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EOF
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git update-index --add x
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cat << EOF > x
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do
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{
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nothing;
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}
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while (0);
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EOF
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cat << EOF > expect
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diff --git a/x b/x
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index adf3937..6edc172 100644
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--- a/x
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+++ b/x
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@@ -1,3 +1,5 @@
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-do {
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+do
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+{
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nothing;
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-} while (0);
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+}
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+while (0);
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EOF
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git diff > out
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test_expect_success "Ray's example without options" 'test_cmp expect out'
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git diff -w > out
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test_expect_success "Ray's example with -w" 'test_cmp expect out'
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git diff -b > out
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test_expect_success "Ray's example with -b" 'test_cmp expect out'
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tr 'Q' '\015' << EOF > x
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whitespace at beginning
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whitespace change
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whitespace in the middle
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whitespace at end
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unchanged line
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CR at endQ
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EOF
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git update-index x
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tr '_' ' ' << EOF > x
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whitespace at beginning
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whitespace change
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white space in the middle
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whitespace at end__
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unchanged line
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CR at end
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EOF
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tr 'Q_' '\015 ' << EOF > expect
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diff --git a/x b/x
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index d99af23..8b32fb5 100644
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--- a/x
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+++ b/x
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@@ -1,6 +1,6 @@
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-whitespace at beginning
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-whitespace change
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-whitespace in the middle
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-whitespace at end
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+ whitespace at beginning
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+whitespace change
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+white space in the middle
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+whitespace at end__
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unchanged line
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-CR at endQ
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+CR at end
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EOF
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git diff > out
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test_expect_success 'another test, without options' 'test_cmp expect out'
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cat << EOF > expect
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EOF
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git diff -w > out
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test_expect_success 'another test, with -w' 'test_cmp expect out'
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git diff -w -b > out
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test_expect_success 'another test, with -w -b' 'test_cmp expect out'
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git diff -w --ignore-space-at-eol > out
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test_expect_success 'another test, with -w --ignore-space-at-eol' 'test_cmp expect out'
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git diff -w -b --ignore-space-at-eol > out
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test_expect_success 'another test, with -w -b --ignore-space-at-eol' 'test_cmp expect out'
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tr 'Q' '\015' << EOF > expect
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diff --git a/x b/x
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index d99af23..8b32fb5 100644
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--- a/x
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+++ b/x
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@@ -1,6 +1,6 @@
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-whitespace at beginning
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+ whitespace at beginning
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whitespace change
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-whitespace in the middle
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+white space in the middle
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whitespace at end
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unchanged line
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CR at endQ
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EOF
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git diff -b > out
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test_expect_success 'another test, with -b' 'test_cmp expect out'
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git diff -b --ignore-space-at-eol > out
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test_expect_success 'another test, with -b --ignore-space-at-eol' 'test_cmp expect out'
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tr 'Q' '\015' << EOF > expect
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diff --git a/x b/x
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index d99af23..8b32fb5 100644
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--- a/x
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+++ b/x
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@@ -1,6 +1,6 @@
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-whitespace at beginning
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-whitespace change
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-whitespace in the middle
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+ whitespace at beginning
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+whitespace change
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+white space in the middle
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whitespace at end
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unchanged line
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CR at endQ
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EOF
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git diff --ignore-space-at-eol > out
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test_expect_success 'another test, with --ignore-space-at-eol' 'test_cmp expect out'
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test_expect_success 'check mixed spaces and tabs in indent' '
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# This is indented with SP HT SP.
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echo " foo();" > x &&
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git diff --check | grep "space before tab in indent"
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'
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test_expect_success 'check mixed tabs and spaces in indent' '
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# This is indented with HT SP HT.
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echo " foo();" > x &&
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git diff --check | grep "space before tab in indent"
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'
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test_expect_success 'check with no whitespace errors' '
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git commit -m "snapshot" &&
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echo "foo();" > x &&
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git diff --check
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'
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test_expect_success 'check with trailing whitespace' '
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echo "foo(); " > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check with space before tab in indent' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success '--check and --exit-code are not exclusive' '
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git checkout x &&
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git diff --check --exit-code
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'
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test_expect_success '--check and --quiet are not exclusive' '
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git diff --check --quiet
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'
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test_expect_success 'check staged with no whitespace errors' '
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echo "foo();" > x &&
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git add x &&
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git diff --cached --check
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'
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test_expect_success 'check staged with trailing whitespace' '
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echo "foo(); " > x &&
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git add x &&
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test_must_fail git diff --cached --check
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'
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test_expect_success 'check staged with space before tab in indent' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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git add x &&
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test_must_fail git diff --cached --check
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'
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test_expect_success 'check with no whitespace errors (diff-index)' '
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echo "foo();" > x &&
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git add x &&
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git diff-index --check HEAD
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'
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test_expect_success 'check with trailing whitespace (diff-index)' '
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echo "foo(); " > x &&
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git add x &&
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test_must_fail git diff-index --check HEAD
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'
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test_expect_success 'check with space before tab in indent (diff-index)' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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git add x &&
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test_must_fail git diff-index --check HEAD
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'
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test_expect_success 'check staged with no whitespace errors (diff-index)' '
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echo "foo();" > x &&
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git add x &&
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git diff-index --cached --check HEAD
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'
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test_expect_success 'check staged with trailing whitespace (diff-index)' '
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echo "foo(); " > x &&
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git add x &&
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test_must_fail git diff-index --cached --check HEAD
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'
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test_expect_success 'check staged with space before tab in indent (diff-index)' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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git add x &&
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test_must_fail git diff-index --cached --check HEAD
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'
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test_expect_success 'check with no whitespace errors (diff-tree)' '
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echo "foo();" > x &&
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git commit -m "new commit" x &&
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git diff-tree --check HEAD^ HEAD
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'
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test_expect_success 'check with trailing whitespace (diff-tree)' '
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echo "foo(); " > x &&
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git commit -m "another commit" x &&
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test_must_fail git diff-tree --check HEAD^ HEAD
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'
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test_expect_success 'check with space before tab in indent (diff-tree)' '
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# indent has space followed by hard tab
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echo " foo();" > x &&
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git commit -m "yet another" x &&
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test_must_fail git diff-tree --check HEAD^ HEAD
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'
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test_expect_success 'check trailing whitespace (trailing-space: off)' '
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git config core.whitespace "-trailing-space" &&
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echo "foo (); " > x &&
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git diff --check
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'
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test_expect_success 'check trailing whitespace (trailing-space: on)' '
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git config core.whitespace "trailing-space" &&
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echo "foo (); " > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check space before tab in indent (space-before-tab: off)' '
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# indent contains space followed by HT
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git config core.whitespace "-space-before-tab" &&
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echo " foo ();" > x &&
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git diff --check
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'
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test_expect_success 'check space before tab in indent (space-before-tab: on)' '
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# indent contains space followed by HT
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git config core.whitespace "space-before-tab" &&
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echo " foo (); " > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check spaces as indentation (indent-with-non-tab: off)' '
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git config core.whitespace "-indent-with-non-tab" &&
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echo " foo ();" > x &&
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git diff --check
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'
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test_expect_success 'check spaces as indentation (indent-with-non-tab: on)' '
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git config core.whitespace "indent-with-non-tab" &&
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echo " foo ();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'ditto, but tabwidth=9' '
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git config core.whitespace "indent-with-non-tab,tabwidth=9" &&
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git diff --check
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'
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test_expect_success 'check tabs and spaces as indentation (indent-with-non-tab: on)' '
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git config core.whitespace "indent-with-non-tab" &&
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echo " foo ();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'ditto, but tabwidth=10' '
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git config core.whitespace "indent-with-non-tab,tabwidth=10" &&
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test_must_fail git diff --check
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'
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test_expect_success 'ditto, but tabwidth=20' '
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git config core.whitespace "indent-with-non-tab,tabwidth=20" &&
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git diff --check
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'
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test_expect_success 'check tabs as indentation (tab-in-indent: off)' '
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git config core.whitespace "-tab-in-indent" &&
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echo " foo ();" > x &&
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git diff --check
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'
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test_expect_success 'check tabs as indentation (tab-in-indent: on)' '
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git config core.whitespace "tab-in-indent" &&
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echo " foo ();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check tabs and spaces as indentation (tab-in-indent: on)' '
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git config core.whitespace "tab-in-indent" &&
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echo " foo ();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'ditto, but tabwidth=1 (must be irrelevant)' '
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git config core.whitespace "tab-in-indent,tabwidth=1" &&
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test_must_fail git diff --check
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'
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test_expect_success 'check tab-in-indent and indent-with-non-tab conflict' '
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git config core.whitespace "tab-in-indent,indent-with-non-tab" &&
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echo "foo ();" > x &&
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test_must_fail git diff --check
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'
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test_expect_success 'check tab-in-indent excluded from wildcard whitespace attribute' '
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git config --unset core.whitespace &&
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echo "x whitespace" > .gitattributes &&
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echo " foo ();" > x &&
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git diff --check &&
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rm -f .gitattributes
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'
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test_expect_success 'line numbers in --check output are correct' '
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echo "" > x &&
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echo "foo(); " >> x &&
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git diff --check | grep "x:2:"
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'
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test_expect_success 'checkdiff detects new trailing blank lines (1)' '
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echo "foo();" >x &&
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echo "" >>x &&
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git diff --check | grep "new blank line"
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'
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test_expect_success 'checkdiff detects new trailing blank lines (2)' '
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{ echo a; echo b; echo; echo; } >x &&
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git add x &&
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{ echo a; echo; echo; echo; echo; } >x &&
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git diff --check | grep "new blank line"
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'
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test_expect_success 'checkdiff allows new blank lines' '
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git checkout x &&
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mv x y &&
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(
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echo "/* This is new */" &&
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echo "" &&
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cat y
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) >x &&
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git diff --check
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'
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cat <<EOF >expect
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EOF
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test_expect_success 'whitespace-only changes not reported' '
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git reset --hard &&
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echo >x "hello world" &&
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git add x &&
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git commit -m "hello 1" &&
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echo >x "hello world" &&
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git diff -b >actual &&
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test_cmp expect actual
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'
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cat <<EOF >expect
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diff --git a/x b/z
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similarity index NUM%
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rename from x
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rename to z
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index 380c32a..a97b785 100644
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EOF
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test_expect_success 'whitespace-only changes reported across renames' '
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git reset --hard &&
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for i in 1 2 3 4 5 6 7 8 9; do echo "$i$i$i$i$i$i"; done >x &&
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git add x &&
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git commit -m "base" &&
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sed -e "5s/^/ /" x >z &&
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git rm x &&
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git add z &&
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git diff -w -M --cached |
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sed -e "/^similarity index /s/[0-9][0-9]*/NUM/" >actual &&
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test_cmp expect actual
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'
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cat >expected <<\EOF
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diff --git a/empty b/void
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similarity index 100%
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rename from empty
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rename to void
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EOF
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test_expect_success 'rename empty' '
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git reset --hard &&
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>empty &&
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git add empty &&
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git commit -m empty &&
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git mv empty void &&
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git diff -w --cached -M >current &&
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test_cmp expected current
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'
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test_expect_success 'combined diff with autocrlf conversion' '
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git reset --hard &&
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echo >x hello &&
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git commit -m "one side" x &&
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git checkout HEAD^ &&
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echo >x goodbye &&
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git commit -m "the other side" x &&
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git config core.autocrlf true &&
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test_must_fail git merge master &&
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git diff | sed -e "1,/^@@@/d" >actual &&
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! grep "^-" actual
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'
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# Start testing the colored format for whitespace checks
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test_expect_success 'setup diff colors' '
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git config color.diff always &&
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git config color.diff.plain normal &&
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git config color.diff.meta bold &&
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git config color.diff.frag cyan &&
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git config color.diff.func normal &&
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git config color.diff.old red &&
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git config color.diff.new green &&
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git config color.diff.commit yellow &&
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git config color.diff.whitespace "normal red" &&
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git config core.autocrlf false
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'
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cat >expected <<\EOF
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<BOLD>diff --git a/x b/x<RESET>
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<BOLD>index 9daeafb..2874b91 100644<RESET>
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<BOLD>--- a/x<RESET>
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<BOLD>+++ b/x<RESET>
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<CYAN>@@ -1 +1,4 @@<RESET>
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test<RESET>
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<GREEN>+<RESET><GREEN>{<RESET>
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<GREEN>+<RESET><BRED> <RESET>
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<GREEN>+<RESET><GREEN>}<RESET>
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EOF
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test_expect_success 'diff that introduces a line with only tabs' '
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git config core.whitespace blank-at-eol &&
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git reset --hard &&
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echo "test" > x &&
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git commit -m "initial" x &&
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echo "{NTN}" | tr "NT" "\n\t" >> x &&
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git -c color.diff=always diff | test_decode_color >current &&
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test_cmp expected current
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'
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test_done
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