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-rw-r--r--builtin/apply.c12
-rwxr-xr-xt/t4107-apply-ignore-whitespace.sh12
2 files changed, 11 insertions, 13 deletions
diff --git a/builtin/apply.c b/builtin/apply.c
index 87439fa..9c5724e 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -300,11 +300,13 @@ static int fuzzy_matchlines(const char *s1, size_t n1,
while ((*last2 == '\r') || (*last2 == '\n'))
last2--;
- /* skip leading whitespace */
- while (isspace(*s1) && (s1 <= last1))
- s1++;
- while (isspace(*s2) && (s2 <= last2))
- s2++;
+ /* skip leading whitespaces, if both begin with whitespace */
+ if (s1 <= last1 && s2 <= last2 && isspace(*s1) && isspace(*s2)) {
+ while (isspace(*s1) && (s1 <= last1))
+ s1++;
+ while (isspace(*s2) && (s2 <= last2))
+ s2++;
+ }
/* early return if both lines are empty */
if ((s1 > last1) && (s2 > last2))
return 1;
diff --git a/t/t4107-apply-ignore-whitespace.sh b/t/t4107-apply-ignore-whitespace.sh
index b04fc8f..9e29b52 100755
--- a/t/t4107-apply-ignore-whitespace.sh
+++ b/t/t4107-apply-ignore-whitespace.sh
@@ -111,7 +111,6 @@ sed -e 's/T/ /g' > main.c.final <<\EOF
#include <stdio.h>
void print_int(int num);
-T/* a comment */
int func(int num);
int main() {
@@ -154,7 +153,8 @@ test_expect_success 'patch2 reverse applies with --ignore-space-change' '
git config apply.ignorewhitespace change
test_expect_success 'patch2 applies (apply.ignorewhitespace = change)' '
- git apply patch2.patch
+ git apply patch2.patch &&
+ test_cmp main.c.final main.c
'
test_expect_success 'patch3 fails (missing string at EOL)' '
@@ -165,12 +165,8 @@ test_expect_success 'patch4 fails (missing EOL at EOF)' '
test_must_fail git apply patch4.patch
'
-test_expect_success 'patch5 applies (leading whitespace)' '
- git apply patch5.patch
-'
-
-test_expect_success 'patches do not mangle whitespace' '
- test_cmp main.c main.c.final
+test_expect_success 'patch5 fails (leading whitespace differences matter)' '
+ test_must_fail git apply patch5.patch
'
test_expect_success 're-create file (with --ignore-whitespace)' '