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* Interface to support mirror:// in nix-prefetch-url. The function

Browse source 
resolveMirrorURLs produces a file containing the URLs to which a
  mirror:// URL resolves.

svn path=/nixpkgs/trunk/; revision=12410
This commit is contained in:
Eelco Dolstra 2008-07-23 16:04:10 +00:00
parent 839eb46cda
commit a7c209e474
3 changed files with 24 additions and 3 deletions
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11
pkgs/build-support/fetchurl/builder.sh
View file

@ -1,6 +1,9 @@
source $stdenv/setup
header "downloading file $name with $outputHashAlgo hash $outputHash..."
if test -n "$showURLs"; then
header "downloading file $name with $outputHashAlgo hash $outputHash..."
fi
# Curl flags to handle redirects, not use EPSV, handle cookies for
# servers to need them during redirects, and work on SSL without a
@ -98,6 +101,12 @@ done
urls="$urls2"
if test -n "$showURLs"; then
echo "$urls" > $out
exit 0
fi
if test -n "$preferHashedMirrors"; then
tryHashedMirrors
fi

11
pkgs/build-support/fetchurl/default.nix
View file

@ -20,12 +20,16 @@
, md5 ? ""
, sha1 ? ""
, sha256 ? ""
, # If set, don't download the file, but write a list of all possible
# URLs (resulting from resolving mirror:// URLs) to $out.
showURLs ? false
}:
assert urls != [] -> url == "";
assert url != "" -> urls == [];
assert (outputHash != "" && outputHashAlgo != "")
assert showURLs || (outputHash != "" && outputHashAlgo != "")
|| md5 != "" || sha1 != "" || sha256 != "";
let
@ -45,7 +49,8 @@ in
stdenv.mkDerivation ({
name =
if name != "" then name
if showURLs then "urls"
else if name != "" then name
else baseNameOf (toString (builtins.head urls_));
builder = ./builder.sh;
buildInputs = [curl];
@ -76,6 +81,8 @@ stdenv.mkDerivation ({
# command-line.
"NIX_HASHED_MIRRORS"
] ++ (map (site: "NIX_MIRRORS_${site}") sites);
inherit showURLs;
}
# Pass the mirror locations to the builder.

5
pkgs/top-level/all-packages.nix
View file

@ -337,6 +337,11 @@ let pkgs = rec {
# linked curl in the case of stdenv-linux).
fetchurlBoot = stdenv.fetchurlBoot;
resolveMirrorURLs = {url}: fetchurl {
showURLs = true;
inherit url;
};
makeInitrd = {contents}: import ../build-support/kernel/make-initrd.nix {
inherit stdenv perl cpio contents;
};