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path: root/Biz/Cloud/post-receive.bash
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#!/usr/bin/env bash
#
# creates an archive of a git repo on push
#
# unfortunately the nixos gitolite module does not copy the 'commonHooks'
# properly, so we have to manually deploy this like so:
#
#     scp Biz/Cloud/post-receive \
#         root@simatime.com:/srv/git/.gitolite/hooks/common/post-receive
#
# One time only:
#
#     ssh root@simatime.com "sudo -u git gitolite setup -ho"
#
# Also on first-time setup, might need to manually check the permissions are
# correct on $webroot/archive or wherever else.
#
set -euo pipefail
while read oldrev newrev refname
do
    if [[ -e ./git-daemon-export-ok ]]
    then
        repo=$(basename $PWD | sed 's/.git//g')
        branch=$(git rev-parse --symbolic --abbrev-ref $refname)
        webroot="/srv/www/simatime.com/"
        outdir="$webroot/archive/$repo/$branch"
        mkdir -p $outdir
        echo " making:  https://simatime.com/archive/$repo/$branch/$newrev.tar.gz"
        git archive "$branch" --prefix "$repo-$branch/" --format tar \
            | gzip > "$outdir/$newrev.tar.gz"
        echo " making:  https://simatime.com/archive/$repo/$branch/$newrev.sha256"
        hash=$(nix-prefetch-url --unpack file://$outdir/$newrev.tar.gz 2>/dev/null)
        echo "$hash" > "$outdir/$newrev.sha256"
        echo " commit:  $newrev"
        echo " sha256:  $hash"
        echo " in biz:  deps update $repo --branch $branch --rev $newrev --attribute sha256=$hash"
        chmod -R 755 "$webroot/archive"
    fi
done