X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=quote.c;h=d5cf9d8f94f37fe8ff9f964998c7f0525617e5bc;hb=5d921e2931e5041884d8f86fdccc9004a7b071cc;hp=40702f6b725efade3e1fd61339421940f9fdb47d;hpb=c8744d6a8b27115503565041566d97c21e722584;p=git.git

diff --git a/quote.c b/quote.c
index 40702f6b7..d5cf9d8f9 100644
--- a/quote.c
+++ b/quote.c
@@ -260,6 +260,48 @@ extern void write_name_quotedpfx(const char *pfx, size_t pfxlen,
 	fputc(terminator, fp);
 }
 
+/* quote path as relative to the given prefix */
+char *quote_path_relative(const char *in, int len,
+			  struct strbuf *out, const char *prefix)
+{
+	int needquote;
+
+	if (len < 0)
+		len = strlen(in);
+
+	/* "../" prefix itself does not need quoting, but "in" might. */
+	needquote = next_quote_pos(in, len) < len;
+	strbuf_setlen(out, 0);
+	strbuf_grow(out, len);
+
+	if (needquote)
+		strbuf_addch(out, '"');
+	if (prefix) {
+		int off = 0;
+		while (prefix[off] && off < len && prefix[off] == in[off])
+			if (prefix[off] == '/') {
+				prefix += off + 1;
+				in += off + 1;
+				len -= off + 1;
+				off = 0;
+			} else
+				off++;
+
+		for (; *prefix; prefix++)
+			if (*prefix == '/')
+				strbuf_addstr(out, "../");
+	}
+
+	quote_c_style_counted (in, len, out, NULL, 1);
+
+	if (needquote)
+		strbuf_addch(out, '"');
+	if (!out->len)
+		strbuf_addstr(out, "./");
+
+	return out->buf;
+}
+
 /*
  * C-style name unquoting.
  *