Merge "Move 'builtin-*' into a 'builtin/' subdirectory"ly/mktree-using-strbuf

1 files changed, 25 insertions, 13 deletions

diff --git a/ws.c b/ws.c
index b1efcd9d75..c0893386e6 100644
--- a/ws.c
+++ b/ws.c
@@ -10,11 +10,14 @@
 static struct whitespace_rule {
 	const char *rule_name;
 	unsigned rule_bits;
+	unsigned loosens_error;
 } whitespace_rule_names[] = {
-	{ "trailing-space", WS_TRAILING_SPACE },
-	{ "space-before-tab", WS_SPACE_BEFORE_TAB },
-	{ "indent-with-non-tab", WS_INDENT_WITH_NON_TAB },
-	{ "cr-at-eol", WS_CR_AT_EOL },
+	{ "trailing-space", WS_TRAILING_SPACE, 0 },
+	{ "space-before-tab", WS_SPACE_BEFORE_TAB, 0 },
+	{ "indent-with-non-tab", WS_INDENT_WITH_NON_TAB, 0 },
+	{ "cr-at-eol", WS_CR_AT_EOL, 1 },
+	{ "blank-at-eol", WS_BLANK_AT_EOL, 0 },
+	{ "blank-at-eof", WS_BLANK_AT_EOF, 0 },
 };
 
 unsigned parse_whitespace_rule(const char *string)
@@ -61,7 +64,7 @@ static void setup_whitespace_attr_check(struct git_attr_check *check)
 	static struct git_attr *attr_whitespace;
 
 	if (!attr_whitespace)
-		attr_whitespace = git_attr("whitespace", 10);
+		attr_whitespace = git_attr("whitespace");
 	check[0].attr = attr_whitespace;
 }
 
@@ -79,7 +82,8 @@ unsigned whitespace_rule(const char *pathname)
 			unsigned all_rule = 0;
 			int i;
 			for (i = 0; i < ARRAY_SIZE(whitespace_rule_names); i++)
-				all_rule |= whitespace_rule_names[i].rule_bits;
+				if (!whitespace_rule_names[i].loosens_error)
+					all_rule |= whitespace_rule_names[i].rule_bits;
 			return all_rule;
 		} else if (ATTR_FALSE(value)) {
 			/* false (-whitespace) */
@@ -100,8 +104,17 @@ unsigned whitespace_rule(const char *pathname)
 char *whitespace_error_string(unsigned ws)
 {
 	struct strbuf err = STRBUF_INIT;
-	if (ws & WS_TRAILING_SPACE)
+	if ((ws & WS_TRAILING_SPACE) == WS_TRAILING_SPACE)
 		strbuf_addstr(&err, "trailing whitespace");
+	else {
+		if (ws & WS_BLANK_AT_EOL)
+			strbuf_addstr(&err, "trailing whitespace");
+		if (ws & WS_BLANK_AT_EOF) {
+			if (err.len)
+				strbuf_addstr(&err, ", ");
+			strbuf_addstr(&err, "new blank line at EOF");
+		}
+	}
 	if (ws & WS_SPACE_BEFORE_TAB) {
 		if (err.len)
 			strbuf_addstr(&err, ", ");
@@ -139,11 +152,11 @@ static unsigned ws_check_emit_1(const char *line, int len, unsigned ws_rule,
 	}
 
 	/* Check for trailing whitespace. */
-	if (ws_rule & WS_TRAILING_SPACE) {
+	if (ws_rule & WS_BLANK_AT_EOL) {
 		for (i = len - 1; i >= 0; i--) {
 			if (isspace(line[i])) {
 				trailing_whitespace = i;
-				result |= WS_TRAILING_SPACE;
+				result |= WS_BLANK_AT_EOL;
 			}
 			else
 				break;
@@ -259,12 +272,11 @@ int ws_fix_copy(char *dst, const char *src, int len, unsigned ws_rule, int *erro
 	/*
 	 * Strip trailing whitespace
 	 */
-	if ((ws_rule & WS_TRAILING_SPACE) &&
-	    (2 <= len && isspace(src[len-2]))) {
-		if (src[len - 1] == '\n') {
+	if (ws_rule & WS_BLANK_AT_EOL) {
+		if (0 < len && src[len - 1] == '\n') {
 			add_nl_to_tail = 1;
 			len--;
-			if (1 < len && src[len - 1] == '\r') {
+			if (0 < len && src[len - 1] == '\r') {
 				add_cr_to_tail = !!(ws_rule & WS_CR_AT_EOL);
 				len--;
 			}