filter-branch: assume HEAD if no revision supplied

diff --git a/quote.c b/quote.c
index 800fd88c9ae9979bf44c91fea54c092cdafdb33c..d061626c34f1e62c538db6e931c29751be4fdbcf 100644 (file)
--- a/quote.c
+++ b/quote.c
@@ -22,11 +22,11 @@ void sq_quote_buf(struct strbuf *dst, const char *src)
        char *to_free = NULL;
 
        if (dst->buf == src)
-               to_free = strbuf_detach(dst);
+               to_free = strbuf_detach(dst, NULL);
 
        strbuf_addch(dst, '\'');
        while (*src) {
-               size_t len = strcspn(src, "'\\");
+               size_t len = strcspn(src, "'!");
                strbuf_add(dst, src, len);
                src += len;
                while (need_bs_quote(*src)) {
@@ -56,20 +56,13 @@ void sq_quote_print(FILE *stream, const char *src)
        fputc('\'', stream);
 }
 
-void sq_quote_argv(struct strbuf *dst, const char** argv, int count,
-                   size_t maxlen)
+void sq_quote_argv(struct strbuf *dst, const char** argv, size_t maxlen)
 {
        int i;
 
-       /* Count argv if needed. */
-       if (count < 0) {
-               for (count = 0; argv[count]; count++)
-                       ; /* just counting */
-       }
-
        /* Copy into destination buffer. */
-       strbuf_grow(dst, 32 * count);
-       for (i = 0; i < count; ++i) {
+       strbuf_grow(dst, 255);
+       for (i = 0; argv[i]; ++i) {
                strbuf_addch(dst, ' ');
                sq_quote_buf(dst, argv[i]);
                if (maxlen && dst->len > maxlen)
@@ -131,7 +124,8 @@ static signed char const sq_lookup[256] = {
        /* 0x80 */ /* set to 0 */
 };
 
-static inline int sq_must_quote(char c) {
+static inline int sq_must_quote(char c)
+{
        return sq_lookup[(unsigned char)c] + quote_path_fully > 0;
 }
 
@@ -219,6 +213,22 @@ size_t quote_c_style(const char *name, struct strbuf *sb, FILE *fp, int nodq)
        return quote_c_style_counted(name, -1, sb, fp, nodq);
 }
 
+void quote_two_c_style(struct strbuf *sb, const char *prefix, const char *path, int nodq)
+{
+       if (quote_c_style(prefix, NULL, NULL, 0) ||
+           quote_c_style(path, NULL, NULL, 0)) {
+               if (!nodq)
+                       strbuf_addch(sb, '"');
+               quote_c_style(prefix, sb, NULL, 1);
+               quote_c_style(path, sb, NULL, 1);
+               if (!nodq)
+                       strbuf_addch(sb, '"');
+       } else {
+               strbuf_addstr(sb, prefix);
+               strbuf_addstr(sb, path);
+       }
+}
+
 void write_name_quoted(const char *name, FILE *fp, int terminator)
 {
        if (terminator) {