libalpm/dload: major refactor of signature downloading

There's a lot of related moving parts here:
* Iteration through mirrors is moved back to the calling functions. This
  allows removal of _alpm_download_single_file and _alpm_download_files.
* The download function gets a few more arguments to influence behavior.
  This allows several different scenarios to customize behavior:
  - database
  - database signature (req'd and optional)
  - package
  - package via direct URL
  - package signature via direct URL (req'd and optional)
* For databases, we need signatures from the same mirror, so structure
  the code accordingly.

Some-inspiration-from: Dave Reisner <d@falconindy.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/lib/libalpm/dload.h b/lib/libalpm/dload.h
index 324bd118..f4fd14cd 100644
--- a/lib/libalpm/dload.h
+++ b/lib/libalpm/dload.h
@@ -31,12 +31,8 @@ struct fileinfo {
 	double initial_size;
 };
 
-int _alpm_download_single_file(const char *filename,
-		alpm_list_t *servers, const char *localpath,
-		int force);
-
-int _alpm_download_files(alpm_list_t *files,
-		alpm_list_t *servers, const char *localpath);
+int _alpm_download(const char *url, const char *localpath,
+		int force, int allow_resume, int errors_ok);
 
 #endif /* _ALPM_DLOAD_H */