submodule: add absorb-git-dir function

diff --git a/strbuf.c b/strbuf.c
index 1ba600bd780733f7a985c88f797efdd93c1e49fa..8fec6579f70cae4bc6b330e4e0ca3e7cc595f366 100644 (file)
--- a/strbuf.c
+++ b/strbuf.c
@@ -187,7 +187,7 @@ void strbuf_insert(struct strbuf *sb, size_t pos, const void *data, size_t len)
 
 void strbuf_remove(struct strbuf *sb, size_t pos, size_t len)
 {
-       strbuf_splice(sb, pos, len, NULL, 0);
+       strbuf_splice(sb, pos, len, "", 0);
 }
 
 void strbuf_add(struct strbuf *sb, const void *data, size_t len)
@@ -197,6 +197,13 @@ void strbuf_add(struct strbuf *sb, const void *data, size_t len)
        strbuf_setlen(sb, sb->len + len);
 }
 
+void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2)
+{
+       strbuf_grow(sb, sb2->len);
+       memcpy(sb->buf + sb->len, sb2->buf, sb2->len);
+       strbuf_setlen(sb, sb->len + sb2->len);
+}
+
 void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len)
 {
        strbuf_grow(sb, len);
@@ -863,3 +870,23 @@ void strbuf_stripspace(struct strbuf *sb, int skip_comments)
 
        strbuf_setlen(sb, j);
 }
+
+int strbuf_normalize_path(struct strbuf *src)
+{
+       struct strbuf dst = STRBUF_INIT;
+
+       strbuf_grow(&dst, src->len);
+       if (normalize_path_copy(dst.buf, src->buf) < 0) {
+               strbuf_release(&dst);
+               return -1;
+       }
+
+       /*
+        * normalize_path does not tell us the new length, so we have to
+        * compute it by looking for the new NUL it placed
+        */
+       strbuf_setlen(&dst, strlen(dst.buf));
+       strbuf_swap(src, &dst);
+       strbuf_release(&dst);
+       return 0;
+}