just-mr fetch: Add test for interaction with garbage collection

2 files changed, 105 insertions, 1 deletions

diff --git a/test/end-to-end/just-mr/TARGETS b/test/end-to-end/just-mr/TARGETS
index 4a73e985..417aee2c 100644
--- a/test/end-to-end/just-mr/TARGETS
+++ b/test/end-to-end/just-mr/TARGETS
@@ -10,9 +10,18 @@
   , "test": ["fetch.sh"]
   , "deps": [["test/end-to-end", "mr-tool-under-test"]]
   }
+, "fetch-gc":
+  { "type": ["@", "rules", "shell/test", "script"]
+  , "name": ["fetch-gc"]
+  , "test": ["fetch-gc.sh"]
+  , "deps":
+    [ ["test/end-to-end", "mr-tool-under-test"]
+    , ["test/end-to-end", "tool-under-test"]
+    ]
+  }
 , "TESTS":
   { "type": "install"
   , "tainted": ["test"]
-  , "deps": ["cas-independent", "fetch"]
+  , "deps": ["cas-independent", "fetch", "fetch-gc"]
   }
 }
diff --git a/test/end-to-end/just-mr/fetch-gc.sh b/test/end-to-end/just-mr/fetch-gc.sh
new file mode 100644
index 00000000..c2a1d86c
--- /dev/null
+++ b/test/end-to-end/just-mr/fetch-gc.sh
@@ -0,0 +1,95 @@
+#!/bin/sh
+# Copyright 2022 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="${PWD}/bin/tool-under-test"
+readonly JUST_MR="${PWD}/bin/mr-tool-under-test"
+readonly DISTDIR="${TEST_TMPDIR}/distfiles"
+readonly FETCH_TO_DIR="${TEST_TMPDIR}/directory-to-fetch-to"
+readonly LBR="${TEST_TMPDIR}/local-build-root"
+readonly INSTALL_DIR="${TEST_TMPDIR}/installation-target"
+
+readonly TEST_DATA="The content of the data file in foo"
+
+mkdir -p "${DISTDIR}"
+mkdir -p "${FETCH_TO_DIR}"
+
+mkdir -p foo/bar/baz
+echo {} > foo/TARGETS
+echo -n "${TEST_DATA}" > foo/bar/baz/data.txt
+tar cf "${DISTDIR}/foo-1.2.3.tar" foo 2>&1
+foocontent=$(git hash-object "${DISTDIR}/foo-1.2.3.tar")
+echo "Foo archive has content ${foocontent}"
+rm -rf foo
+
+# Setup sample repository config
+touch ROOT
+cat > repos.json <<EOF
+{ "repositories":
+  { "foo":
+    { "repository":
+      { "type": "archive"
+      , "content": "${foocontent}"
+      , "fetch": "http://non-existent.example.org/foo-1.2.3.tar"
+      , "subdir": "foo"
+      }
+    }
+  , "":
+    { "repository": {"type": "file", "path": "."}
+    , "bindings": {"foo": "foo"}
+    }
+  }
+}
+EOF
+echo "Repository configuration:"
+cat repos.json
+echo
+cat > TARGETS <<'EOF'
+{ "":
+  { "type": "install"
+  , "files": {"out.txt": ["@", "foo", "", "bar/baz/data.txt"]}
+  }
+}
+EOF
+
+# Call just-mr setup. This will also create a cache entry for the tree
+# corresponding to that archive
+"${JUST_MR}" --local-build-root "${LBR}" --distdir "${DISTDIR}" setup 2>&1
+
+# Remove entry from CAS
+"${JUST}" gc --local-build-root "${LBR}" 2>&1
+"${JUST}" gc --local-build-root "${LBR}" 2>&1
+
+# Fetch should still work, if given access to the original file
+"${JUST_MR}" --local-build-root "${LBR}" --distdir "${DISTDIR}" \
+             fetch -o "${FETCH_TO_DIR}" 2>&1
+newfoocontent=$(git hash-object "${DISTDIR}/foo-1.2.3.tar")
+echo "Foo archive has now content ${newfoocontent}"
+test "${newfoocontent}" = "${foocontent}"
+
+# Remove entry again from CAS and clear distdirs
+"${JUST}" gc --local-build-root "${LBR}" 2>&1
+"${JUST}" gc --local-build-root "${LBR}" 2>&1
+rm -rf "${DISTDIR}"
+rm -rf "${FETCH_TO_DIR}"
+
+# Setup for building should still be possible
+"${JUST_MR}" --just "${JUST}" --local-build-root "${LBR}" \
+             install -o "${INSTALL_DIR}" 2>&1
+test "$(cat "${INSTALL_DIR}/out.txt")" = "${TEST_DATA}"
+
+echo OK