From ff7e068bf718545fa594481e62f4fc5537c583f8 Mon Sep 17 00:00:00 2001
From: Julien Lepiller <julien@lepiller.eu>
Date: Sun, 9 Feb 2020 19:47:27 +0100
Subject: guix: download: Add partial download support.

* nix/libstore/build.cc (tryToBuild): Do not remove invalid fixed-output
derivations.
* guix/build/download.scm (http-fetch): Add a range argument.
(url-fetch): Performa partial download if a file already exists.
---
 nix/libstore/build.cc | 1 +
 1 file changed, 1 insertion(+)

(limited to 'nix/libstore/build.cc')

diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index 17e92c68a7..176ab40226 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -1320,6 +1320,7 @@ void DerivationGoal::tryToBuild()
         Path path = i->second.path;
         if (worker.store.isValidPath(path)) continue;
         if (!pathExists(path)) continue;
+	if (fixedOutput) continue;
         debug(format("removing invalid path `%1%'") % path);
         deletePath(path);
     }
-- 
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