Add test verifying that git repos of the old generation are used

2 files changed, 127 insertions, 0 deletions

diff --git a/test/end-to-end/just-mr/TARGETS b/test/end-to-end/just-mr/TARGETS
index 6875fa0c..53d63b4e 100644
--- a/test/end-to-end/just-mr/TARGETS
+++ b/test/end-to-end/just-mr/TARGETS
@@ -206,6 +206,13 @@
     , ["utils", "null server"]
     ]
   }
+, "gc-repo":
+  { "type": ["@", "rules", "shell/test", "script"]
+  , "name": ["gc-repo"]
+  , "test": ["gc-repo.sh"]
+  , "deps": [["", "mr-tool-under-test"]]
+  , "keep": ["log/log-1", "log/log-2"]
+  }
 , "TESTS":
   { "type": "install"
   , "tainted": ["test"]
@@ -230,6 +237,7 @@
               , "absent-roots"
               , "foreign-file"
               , "reporting-verbosity"
+              , "gc-repo"
               ]
             , { "type": "if"
               , "cond": {"type": "var", "name": "TEST_COMPATIBLE_REMOTE"}
diff --git a/test/end-to-end/just-mr/gc-repo.sh b/test/end-to-end/just-mr/gc-repo.sh
new file mode 100644
index 00000000..1152f167
--- /dev/null
+++ b/test/end-to-end/just-mr/gc-repo.sh
@@ -0,0 +1,119 @@
+#!/bin/sh
+# Copyright 2024 Huawei Cloud Computing Technology Co., Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+set -eu
+
+readonly JUST_MR="${PWD}/bin/mr-tool-under-test"
+readonly WORK="${PWD}/work"
+readonly GIT_REPO="${PWD}/git-repository"
+readonly BIN="${TEST_TMPDIR}/bin"
+mkdir -p "${BIN}"
+readonly LBR="${TEST_TMPDIR}/local-build-root"
+readonly OUT="${TEST_TMPDIR}/out"
+mkdir -p "${OUT}"
+readonly LOG="${PWD}/log"
+mkdir -p "${LOG}"
+
+# Set up git repo
+mkdir -p "${GIT_REPO}"
+cd "${GIT_REPO}"
+mkdir data
+echo Hello world > data/text
+seq 1 10 > data/numbers
+git init 2>&1
+git branch -m stable-1.0 2>&1
+git config user.email "nobody@example.org" 2>&1
+git config user.name "Nobody" 2>&1
+git add . 2>&1
+git commit -m "Sample data" 2>&1
+git show
+GIT_COMMIT=$(git log -n 1 --format="%H")
+GIT_TREE=$(git log -n 1 --format="%T")
+echo
+echo "Created commit ${GIT_COMMIT} with tree ${GIT_TREE}"
+echo
+
+## As we simulate remote fetching, create a mock git binary
+cat > "${BIN}/mock-git" <<EOF
+#!/bin/sh
+if [ "\$1" = "fetch" ]
+then
+  git fetch "${GIT_REPO}" stable-1.0
+else
+  git "\$@"
+fi
+EOF
+chmod 755 "${BIN}/mock-git"
+
+# Create workspace with just-mr repository configuration
+mkdir -p "${WORK}"
+cd "${WORK}"
+touch ROOT
+cat > repos.json <<EOF
+{ "repositories":
+  { "":
+    {"repository": {"type": "file", "path": "."}, "bindings": {"git": "git"}}
+  , "git":
+    { "repository":
+      { "type": "git"
+      , "commit": "${GIT_COMMIT}"
+      , "repository": "mockprotocol://example.com/repo"
+      , "branch": "stable-1.0"
+      }
+    }
+  }
+}
+EOF
+cat repos.json
+
+# Set up repos. This should get everything in the local build root.
+"${JUST_MR}" --local-build-root "${LBR}" --git "${BIN}/mock-git" \
+   setup  > "${OUT}/conf-file-name" 2> "${LOG}/log-1"
+cat "${LOG}/log-1"
+echo
+CONFIG="$(cat "${OUT}/conf-file-name")"
+cat "${CONFIG}"
+echo
+
+## Verify git repo is set up correctly
+TREE_FOUND="$(jq -r '.repositories.git.workspace_root[1]' "${CONFIG}")"
+[ "${TREE_FOUND}" = "${GIT_TREE}" ]
+GIT_LOCATION="$(jq -r '.repositories.git.workspace_root[2]' "${CONFIG}")"
+
+# Clean up original repositories
+rm -rf "${GIT_REPO}"
+
+# Rotate repo cache
+"${JUST_MR}" --local-build-root "${LBR}" gc-repo 2>&1
+
+## Verify the mirrored locations are gone
+[ -e "${GIT_LOCATION}" ] && exit 1 || :
+
+# Setup repos again
+"${JUST_MR}" --local-build-root "${LBR}" \
+    setup  > "${OUT}/conf-file-name" 2> "${LOG}/log-2"
+cat "${LOG}/log-2"
+echo
+CONFIG="$(cat "${OUT}/conf-file-name")"
+cat "${CONFIG}"
+echo
+
+## Verify git repo is set up correctly
+TREE_FOUND="$(jq -r '.repositories.git.workspace_root[1]' "${CONFIG}")"
+[ "${TREE_FOUND}" = "${GIT_TREE}" ]
+
+
+echo OK