channel-scripts/mirror-nixpkgs.sh

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#! /bin/sh -e
viewUrl=http://hydra.nixos.org/view/nixpkgs/unstable/latest-finished
releasesDir=/data/releases/nixpkgs
channelsDir=/data/releases/channels
channelName=nixpkgs-unstable
curl="curl --silent --show-error --fail"
url=$($curl --head $viewUrl | sed 's/Location: \(.*\)\r/\1/; t; d')
if [ -z "$url" ]; then exit 1; fi
echo "View page is $url"
release=$($curl $url | sed 's|.*<h1>View.*(<tt>\(.*\)</tt>.*|\1|; t; d')
if [ -z "$release" ]; then echo "Failed to get release"; exit 1; fi
echo "Release is $release"
releaseDir=$releasesDir/$release
echo $releaseDir
if [ -d $releaseDir ]; then
echo "Release already exists"
else
tmpDir=$releasesDir/.tmp-$release-$$
mkdir -p $tmpDir
echo $url > $tmpDir/src-url
perl -w ./mirror-channel.pl "$url/eval/channel" "$tmpDir" \
/data/releases/nars http://nixos.org/releases/nars \
/data/releases/patches/all-patches "$url/tarball/download/4"
mv $tmpDir $releaseDir
fi
htaccess=$channelsDir/.htaccess-nixpkgs
echo "Redirect /channels/$channelName http://nixos.org/releases/nixpkgs/$release" > $htaccess.tmp
echo "Redirect /releases/nixpkgs/channels/$channelName http://nixos.org/releases/nixpkgs/$release" >> $htaccess.tmp
ln -sfn $releaseDir $channelsDir/$channelName # dummy symlink
mv $htaccess.tmp $htaccess
flock -x $channelsDir/.htaccess.lock -c "cat $channelsDir/.htaccess-nix* > $channelsDir/.htaccess"