manual-tests: New static-delta-generate-crosscheck.sh

I wanted to test static deltas vs a repo with "real" content
in it from Fedora Atomic.

manual-tests/static-delta-generate-crosscheck.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+#
+# Generate multiple variants of static deltas in a repo, then use them
+# to upgrade in a test repository, verifying that fsck works.
+#
+# This test is manual so it's easy to run against arbitrary content.
+
+set -euo pipefail
+
+repo=$(pwd)/${1}
+shift
+branch=${1}
+shift
+
+from=$(ostree --repo=${repo} rev-parse "${branch}"^)
+to=$(ostree --repo=${repo} rev-parse ${branch})
+
+tmpdir=$(mktemp -d /var/tmp/ostree-delta-check.XXXXXX)
+cd ${tmpdir}
+touch ${tmpdir}/.tmp
+echo "Using tmpdir ${tmpdir}"
+
+cleanup_tmpdir() {
+    if test -f ${tmpdir}/.tmp; then
+	rm -rf ${tmpdir}
+    fi
+}
+    
+if test -z "${PRESERVE_TMP:-}"; then
+    trap cleanup_tmpdir EXIT
+fi
+
+fatal() {
+    echo "$@"
+    exit 1
+}
+
+assert_streq() {
+    if ! test $1 = $2; then
+	fatal "assertion failed: $1 = $2"
+    fi
+}
+
+validate_delta_options() {
+    mkdir testrepo
+    ostree --repo=testrepo init --mode=bare-user
+    ostree --repo=testrepo remote add --set=gpg-verify=false local file://${repo}
+    ostree --repo=${repo} static-delta generate $@ ${from} ${to}
+    ostree --repo=testrepo pull local ${branch}@${from}
+    assert_streq $(ostree --repo=testrepo rev-parse ${branch}) ${from}
+    ostree --repo=testrepo pull local ${branch}
+    assert_streq $(ostree --repo=testrepo rev-parse ${branch}) ${to}
+    ostree --repo=testrepo fsck
+    rm testrepo -rf
+}
+
+set -x
+
+validate_delta_options
+validate_delta_options --inline
+validate_delta_options --disable-bsdiff
+