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Ensure that the channel doesn't go back in time

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This can happen when builds are restarted, causing the "latest
finished evaluation" to point to an older evaluation.
This commit is contained in:
Eelco Dolstra 2015-09-02 11:16:51 +02:00
parent 87ccf9de70
commit a441c018e2
1 changed files with 10 additions and 0 deletions
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10
mirror-nixos-branch.sh
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@ -32,6 +32,16 @@ releaseDir=$releasesDir/$release
echo "release is ‘$release’ (build $releaseId), eval is ‘$url’, dir is ‘$releaseDir’" >&2 echo "release is ‘$release’ (build $releaseId), eval is ‘$url’, dir is ‘$releaseDir’" >&2
curRelease=$(basename $(readlink $channelsDir/$channelName 2> /dev/null) 2> /dev/null || true)
if [ -n "$curRelease" ]; then
d="$(nix-instantiate --eval -E "builtins.compareVersions (builtins.parseDrvName \"$curRelease\").version (builtins.parseDrvName \"$release\").version")"
if [ "$d" = 1 ]; then
echo "channel would go back in time from $curRelease to $release, bailing out" >&2
exit 1
fi
fi
# Figure out the Git revision from which this release was # Figure out the Git revision from which this release was
# built. FIXME: get this from Hydra directly. # built. FIXME: get this from Hydra directly.
shortRev=$(echo "$release" | sed 's/.*\.//') shortRev=$(echo "$release" | sed 's/.*\.//')