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* Allow the user to override the list of content-addressable mirrors

Browse source 
from the command-line by setting the NIX_HASHED_MIRRORS environment
  variable.

svn path=/nixpkgs/trunk/; revision=9301
This commit is contained in:
Eelco Dolstra 2007-09-11 13:48:53 +00:00
parent fac97c4e8d
commit 6c4fd2e3df
2 changed files with 15 additions and 5 deletions
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4
pkgs/build-support/fetchurl/builder.sh
View file

@ -46,6 +46,10 @@ finish() {
tryHashedMirrors() {
if test -n "$NIX_HASHED_MIRRORS"; then
hashedMirrors="$NIX_HASHED_MIRRORS"
fi
for mirror in $hashedMirrors; do
url="$mirror/$outputHashAlgo/$outputHash"
if $curl --fail --silent --show-error --head "$url" \

16
pkgs/build-support/fetchurl/default.nix
View file

@ -52,11 +52,17 @@ stdenv.mkDerivation ({
outputHash = if outputHash != "" then outputHash else
if sha256 != "" then sha256 else if sha1 != "" then sha1 else md5;
# We borrow these environment variables from the caller to allow
# easy proxy configuration. This is impure, but a fixed-output
# derivation like fetchurl is allowed to do so since its result is
# by definition pure.
impureEnvVars = ["http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy"];
impureEnvVars = [
# We borrow these environment variables from the caller to allow
# easy proxy configuration. This is impure, but a fixed-output
# derivation like fetchurl is allowed to do so since its result is
# by definition pure.
"http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy"
# This variable allows the user to override hashedMirrors from the
# command-line.
"NIX_HASHED_MIRRORS"
];
}
# Pass the mirror locations to the builder.