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-rw-r--r--diff.c65
-rwxr-xr-xt/t4015-diff-whitespace.sh22
2 files changed, 30 insertions, 57 deletions
diff --git a/diff.c b/diff.c
index ffbe09937b..2085c06367 100644
--- a/diff.c
+++ b/diff.c
@@ -850,28 +850,15 @@ static void fill_es_indent_data(struct emitted_diff_symbol *es)
}
static int compute_ws_delta(const struct emitted_diff_symbol *a,
- const struct emitted_diff_symbol *b,
- int *out)
-{
- int a_len = a->len,
- b_len = b->len,
- a_off = a->indent_off,
- a_width = a->indent_width,
- b_off = b->indent_off,
+ const struct emitted_diff_symbol *b)
+{
+ int a_width = a->indent_width,
b_width = b->indent_width;
- if (a_width == INDENT_BLANKLINE && b_width == INDENT_BLANKLINE) {
- *out = INDENT_BLANKLINE;
- return 1;
- }
-
- if (a_len - a_off != b_len - b_off ||
- memcmp(a->line + a_off, b->line + b_off, a_len - a_off))
- return 0;
-
- *out = a_width - b_width;
+ if (a_width == INDENT_BLANKLINE && b_width == INDENT_BLANKLINE)
+ return INDENT_BLANKLINE;
- return 1;
+ return a_width - b_width;
}
static int cmp_in_block_with_wsd(const struct moved_entry *cur,
@@ -916,26 +903,17 @@ static int moved_entry_cmp(const void *hashmap_cmp_fn_data,
const void *keydata)
{
const struct diff_options *diffopt = hashmap_cmp_fn_data;
- const struct moved_entry *a, *b;
+ const struct emitted_diff_symbol *a, *b;
unsigned flags = diffopt->color_moved_ws_handling
& XDF_WHITESPACE_FLAGS;
- a = container_of(eptr, const struct moved_entry, ent);
- b = container_of(entry_or_key, const struct moved_entry, ent);
+ a = container_of(eptr, const struct moved_entry, ent)->es;
+ b = container_of(entry_or_key, const struct moved_entry, ent)->es;
- if (diffopt->color_moved_ws_handling &
- COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE)
- /*
- * As there is not specific white space config given,
- * we'd need to check for a new block, so ignore all
- * white space. The setup of the white space
- * configuration for the next block is done else where
- */
- flags |= XDF_IGNORE_WHITESPACE;
-
- return !xdiff_compare_lines(a->es->line, a->es->len,
- b->es->line, b->es->len,
- flags);
+ return !xdiff_compare_lines(a->line + a->indent_off,
+ a->len - a->indent_off,
+ b->line + b->indent_off,
+ b->len - b->indent_off, flags);
}
static struct moved_entry *prepare_entry(struct diff_options *o,
@@ -944,7 +922,8 @@ static struct moved_entry *prepare_entry(struct diff_options *o,
struct moved_entry *ret = xmalloc(sizeof(*ret));
struct emitted_diff_symbol *l = &o->emitted_symbols->buf[line_no];
unsigned flags = o->color_moved_ws_handling & XDF_WHITESPACE_FLAGS;
- unsigned int hash = xdiff_hash_string(l->line, l->len, flags);
+ unsigned int hash = xdiff_hash_string(l->line + l->indent_off,
+ l->len - l->indent_off, flags);
hashmap_entry_init(&ret->ent, hash);
ret->es = l;
@@ -1036,13 +1015,11 @@ static void fill_potential_moved_blocks(struct diff_options *o,
hashmap_for_each_entry_from(hm, match, ent) {
ALLOC_GROW(pmb, pmb_nr + 1, pmb_alloc);
if (o->color_moved_ws_handling &
- COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) {
- if (compute_ws_delta(l, match->es, &(pmb[pmb_nr]).wsd))
- pmb[pmb_nr++].match = match;
- } else {
+ COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE)
+ pmb[pmb_nr].wsd = compute_ws_delta(l, match->es);
+ else
pmb[pmb_nr].wsd = 0;
- pmb[pmb_nr++].match = match;
- }
+ pmb[pmb_nr++].match = match;
}
*pmb_p = pmb;
@@ -6276,10 +6253,6 @@ static void diff_flush_patch_all_file_pairs(struct diff_options *o)
if (o->color_moved) {
struct hashmap add_lines, del_lines;
- if (o->color_moved_ws_handling &
- COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE)
- o->color_moved_ws_handling |= XDF_IGNORE_WHITESPACE;
-
hashmap_init(&del_lines, moved_entry_cmp, o, 0);
hashmap_init(&add_lines, moved_entry_cmp, o, 0);
diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index 15782c879d..50d0cf486b 100755
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -2206,10 +2206,10 @@ EMPTY=''
test_expect_success 'compare mixed whitespace delta across moved blocks' '
git reset --hard &&
- tr Q_ "\t " <<-EOF >text.txt &&
- ${EMPTY}
- ____too short without
- ${EMPTY}
+ tr "^|Q_" "\f\v\t " <<-EOF >text.txt &&
+ ^__
+ |____too short without
+ ^
___being grouped across blank line
${EMPTY}
context
@@ -2228,7 +2228,7 @@ test_expect_success 'compare mixed whitespace delta across moved blocks' '
git add text.txt &&
git commit -m "add text.txt" &&
- tr Q_ "\t " <<-EOF >text.txt &&
+ tr "^|Q_" "\f\v\t " <<-EOF >text.txt &&
context
lines
to
@@ -2239,7 +2239,7 @@ test_expect_success 'compare mixed whitespace delta across moved blocks' '
${EMPTY}
QQtoo short without
${EMPTY}
- Q_______being grouped across blank line
+ ^Q_______being grouped across blank line
${EMPTY}
Q_QThese two lines have had their
indentation reduced by four spaces
@@ -2251,16 +2251,16 @@ test_expect_success 'compare mixed whitespace delta across moved blocks' '
-c core.whitespace=space-before-tab \
diff --color --color-moved --ws-error-highlight=all \
--color-moved-ws=allow-indentation-change >actual.raw &&
- grep -v "index" actual.raw | test_decode_color >actual &&
+ grep -v "index" actual.raw | tr "\f\v" "^|" | test_decode_color >actual &&
cat <<-\EOF >expected &&
<BOLD>diff --git a/text.txt b/text.txt<RESET>
<BOLD>--- a/text.txt<RESET>
<BOLD>+++ b/text.txt<RESET>
<CYAN>@@ -1,16 +1,16 @@<RESET>
- <BOLD;MAGENTA>-<RESET>
- <BOLD;MAGENTA>-<RESET><BOLD;MAGENTA> too short without<RESET>
- <BOLD;MAGENTA>-<RESET>
+ <BOLD;MAGENTA>-<RESET><BOLD;MAGENTA>^<RESET><BRED> <RESET>
+ <BOLD;MAGENTA>-<RESET><BOLD;MAGENTA>| too short without<RESET>
+ <BOLD;MAGENTA>-<RESET><BOLD;MAGENTA>^<RESET>
<BOLD;MAGENTA>-<RESET><BOLD;MAGENTA> being grouped across blank line<RESET>
<BOLD;MAGENTA>-<RESET>
<RESET>context<RESET>
@@ -2280,7 +2280,7 @@ test_expect_success 'compare mixed whitespace delta across moved blocks' '
<BOLD;YELLOW>+<RESET>
<BOLD;YELLOW>+<RESET> <BOLD;YELLOW>too short without<RESET>
<BOLD;YELLOW>+<RESET>
- <BOLD;YELLOW>+<RESET> <BOLD;YELLOW> being grouped across blank line<RESET>
+ <BOLD;YELLOW>+<RESET><BOLD;YELLOW>^ being grouped across blank line<RESET>
<BOLD;YELLOW>+<RESET>
<BOLD;CYAN>+<RESET> <BRED> <RESET> <BOLD;CYAN>These two lines have had their<RESET>
<BOLD;CYAN>+<RESET><BOLD;CYAN>indentation reduced by four spaces<RESET>
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-03 16:26:23 +0000