http: make http_get_file() external

This method will be used in an upcoming extension of git-remote-curl to
download a single file over HTTP(S) by request.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/http.h b/http.h
index df1590e..ba303cf 100644
--- a/http.h
+++ b/http.h
@@ -163,6 +163,15 @@ struct http_get_options {
  */
 int http_get_strbuf(const char *url, struct strbuf *result, struct http_get_options *options);
 
+/*
+ * Downloads a URL and stores the result in the given file.
+ *
+ * If a previous interrupted download is detected (i.e. a previous temporary
+ * file is still around) the download is resumed.
+ */
+int http_get_file(const char *url, const char *filename,
+		  struct http_get_options *options);
+
 int http_fetch_ref(const char *base, struct ref *ref);
 
 /* Helpers for fetching packs */