quote_path: optionally allow quoting a path with SP in it

Some code in wt-status.c special case a path with SP in it, which
usually does not have to be c-quoted, and ensure that such a path
does get quoted.  Move the logic to quote_path() and give it a bit
in the flags word, QUOTE_PATH_QUOTE_SP.

No behaviour change intended.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/quote.c b/quote.c
index a86f9f2..aa9a37b 100644
--- a/quote.c
+++ b/quote.c
@@ -360,6 +360,13 @@ char *quote_path(const char *in, const char *prefix, struct strbuf *out, unsigne
 	quote_c_style_counted(rel, strlen(rel), out, NULL, 0);
 	strbuf_release(&sb);
 
+	if ((flags & QUOTE_PATH_QUOTE_SP) &&
+	    (out->buf[0] != '"' && strchr(out->buf, ' '))) {
+		/* Ensure the whole thing is quoted if the path has SP in it */
+		strbuf_insertstr(out, 0, "\"");
+		strbuf_addch(out, '"');
+	}
+
 	return out->buf;
 }