Show usage string for 'git get-tar-commit-id -h'

diff --git a/ws.c b/ws.c
index cd03bc032a027d5a41244799be6d3f63c9223e4c..760b5743fa11f25dd4facf8beeb02e7aa28d09e1 100644 (file)
--- a/ws.c
+++ b/ws.c
@@ -10,13 +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 },
-       { "blank-at-eol", WS_BLANK_AT_EOL },
-       { "blank-at-eof", WS_BLANK_AT_EOF },
+       { "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)
@@ -81,7 +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) */
@@ -101,9 +103,7 @@ unsigned whitespace_rule(const char *pathname)
 /* The returned string should be freed by the caller. */
 char *whitespace_error_string(unsigned ws)
 {
-       struct strbuf err;
-
-       strbuf_init(&err, 0);
+       struct strbuf err = STRBUF_INIT;
        if ((ws & WS_TRAILING_SPACE) == WS_TRAILING_SPACE)
                strbuf_addstr(&err, "trailing whitespace");
        else {
@@ -272,12 +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_BLANK_AT_EOL) &&
-           (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--;
                        }