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Don't start copy-from-other-stores if $NIX_OTHER_STORES is unset

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Slight optimisation.
This commit is contained in:
Eelco Dolstra 2012-11-09 14:58:10 +01:00
parent 91ef4d9a81
commit f581ce0b0c
1 changed files with 2 additions and 1 deletions
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3
src/libstore/globals.cc
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@ -61,7 +61,8 @@ void Settings::processEnvironment()
string subs = getEnv("NIX_SUBSTITUTERS", "default"); string subs = getEnv("NIX_SUBSTITUTERS", "default");
if (subs == "default") { if (subs == "default") {
substituters.push_back(nixLibexecDir + "/nix/substituters/copy-from-other-stores.pl"); if (getEnv("NIX_OTHER_STORES") != "")
substituters.push_back(nixLibexecDir + "/nix/substituters/copy-from-other-stores.pl");
substituters.push_back(nixLibexecDir + "/nix/substituters/download-using-manifests.pl"); substituters.push_back(nixLibexecDir + "/nix/substituters/download-using-manifests.pl");
substituters.push_back(nixLibexecDir + "/nix/substituters/download-from-binary-cache.pl"); substituters.push_back(nixLibexecDir + "/nix/substituters/download-from-binary-cache.pl");
} else } else