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-rw-r--r--apply.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/apply.c b/apply.c
index 244718ca13..e7b3dcad4f 100644
--- a/apply.c
+++ b/apply.c
@@ -34,6 +34,12 @@ static int line_termination = '\n';
static const char apply_usage[] =
"git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [-z] [-pNUM] <patch>...";
+static enum whitespace_eol {
+ nowarn,
+ warn_on_whitespace,
+ error_on_whitespace
+} new_whitespace = nowarn;
+
/*
* For "diff-stat" like behaviour, we keep track of the biggest change
* we've seen, and the longest filename. That allows us to do simple
@@ -815,6 +821,22 @@ static int parse_fragment(char *line, unsigned long size, struct patch *patch, s
oldlines--;
break;
case '+':
+ /*
+ * We know len is at least two, since we have a '+' and
+ * we checked that the last character was a '\n' above
+ */
+ if (isspace(line[len-2])) {
+ switch (new_whitespace) {
+ case nowarn:
+ break;
+ case warn_on_whitespace:
+ new_whitespace = nowarn; /* Just once */
+ error("Added whitespace at end of line at line %d", linenr);
+ break;
+ case error_on_whitespace:
+ die("Added whitespace at end of line at line %d", linenr);
+ }
+ }
added++;
newlines--;
break;
@@ -1839,6 +1861,17 @@ int main(int argc, char **argv)
line_termination = 0;
continue;
}
+ if (!strncmp(arg, "--whitespace=", 13)) {
+ if (strcmp(arg+13, "warn")) {
+ new_whitespace = warn_on_whitespace;
+ continue;
+ }
+ if (strcmp(arg+13, "error")) {
+ new_whitespace = error_on_whitespace;
+ continue;
+ }
+ die("unrecognixed whitespace option '%s'", arg+13);
+ }
if (check_index && prefix_length < 0) {
prefix = setup_git_directory();