From f8abbdd4565542464f31f4dc203a9c3e091b3536 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Tue, 17 Dec 2019 17:17:53 +0100
Subject: Add priority setting to stores

This allows overriding the priority of substituters, e.g.

  $ nix-store --store ~/my-nix/ -r /nix/store/df3m4da96d84ljzxx4mygfshm1p0r2n3-geeqie-1.4 \
    --substituters 'http://cache.nixos.org?priority=100 daemon?priority=10'

Fixes #3264.
---
 src/libstore/sqlite.hh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/libstore/sqlite.hh')

diff --git a/src/libstore/sqlite.hh b/src/libstore/sqlite.hh
index 115679b84..bd012d9b9 100644
--- a/src/libstore/sqlite.hh
+++ b/src/libstore/sqlite.hh
@@ -99,8 +99,8 @@ void handleSQLiteBusy(const SQLiteBusy & e);
 
 /* Convenience function for retrying a SQLite transaction when the
    database is busy. */
-template<typename T>
-T retrySQLite(std::function<T()> fun)
+template<typename T, typename F>
+T retrySQLite(F && fun)
 {
     while (true) {
         try {
-- 
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