Don't swallow namespace-parsing errors

Previously, if there was a problem with the inputs and bild failed to
determine the namespace, 'fromPath' would return 'Nothing' and then
'catMaybes' would drop the error-causing input altogether. In the one
time that I had a bad input, this made debugging incredibly difficult.
It's always a bad idea to swallow errors silently, so instead lets just
kill the program if we have bad inputs.

1 files changed, 39 insertions, 0 deletions

diff --git a/Biz/Cloud/post-receive.bash b/Biz/Cloud/post-receive.bash
new file mode 100755
index 0000000..4a67043
--- /dev/null
+++ b/Biz/Cloud/post-receive.bash
@@ -0,0 +1,39 @@
+#!/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