From ae42d0cf824f6dd08eee400bf6c4ad01ecd4e567 Mon Sep 17 00:00:00 2001
From: Maksim Denisov <denisov.maksim@huawei.com>
Date: Thu, 19 Dec 2024 15:23:07 +0100
Subject: Test just-mr properly updates config for computed roots

---
 test/end-to-end/computed-roots/TARGETS         |   7 ++
 test/end-to-end/computed-roots/mr_take_over.sh | 122 +++++++++++++++++++++++++
 2 files changed, 129 insertions(+)
 create mode 100644 test/end-to-end/computed-roots/mr_take_over.sh

diff --git a/test/end-to-end/computed-roots/TARGETS b/test/end-to-end/computed-roots/TARGETS
index 4ac7dcb4..14e9a5e5 100644
--- a/test/end-to-end/computed-roots/TARGETS
+++ b/test/end-to-end/computed-roots/TARGETS
@@ -25,6 +25,12 @@
   , "test": ["mr_computed_setup.sh"]
   , "deps": [["", "mr-tool-under-test"], ["", "tool-under-test"]]
   }
+, "mr_take_over":
+  { "type": ["@", "rules", "shell/test", "script"]
+  , "name": ["mr_take_over"]
+  , "test": ["mr_take_over.sh"]
+  , "deps": [["", "mr-tool-under-test"], ["", "tool-under-test"]]
+  }
 , "error-reporting":
   { "type": ["@", "rules", "shell/test", "script"]
   , "name": ["error-reporting"]
@@ -88,6 +94,7 @@
     , "error-remote"
     , "error-reporting"
     , "mr_computed_setup"
+    , "mr_take_over"
     , "remote sharding"
     ]
   }
diff --git a/test/end-to-end/computed-roots/mr_take_over.sh b/test/end-to-end/computed-roots/mr_take_over.sh
new file mode 100644
index 00000000..e77dee8d
--- /dev/null
+++ b/test/end-to-end/computed-roots/mr_take_over.sh
@@ -0,0 +1,122 @@
+#!/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 -e
+
+readonly ROOT="$(pwd)"
+readonly LBRDIR="$TMPDIR/local-build-root"
+readonly JUST="${ROOT}/bin/tool-under-test"
+readonly JUST_MR="${ROOT}/bin/mr-tool-under-test"
+readonly OUT="${ROOT}/out"
+
+readonly SRC_DIR="${ROOT}/src"
+mkdir -p "${SRC_DIR}"
+cat > "${SRC_DIR}/generate.py" <<'EOF'
+import json
+import sys
+
+COUNT = int(sys.argv[1])
+targets = {}
+for i in range(COUNT):
+  targets["%d" % i] = {"type": "generic", "outs": ["%d.txt" %i],
+                       "cmds": ["seq 0 %d > %d.txt" % (i, i)]}
+targets[""] = {"type": "generic",
+               "deps": ["%d" % i for i in range(COUNT)],
+               "cmds": [" ".join(["cat"] + ["%d.txt" % i for i in range(COUNT)]
+                                 + ["> out"])],
+               "outs": ["out"]}
+print (json.dumps(targets, indent=2))
+EOF
+
+readonly TARGETS_DIR="${ROOT}/targets"
+mkdir -p "${TARGETS_DIR}"
+cd "${TARGETS_DIR}"
+cat > "TARGETS.collect" << EOF
+{ "": {"type": "export", "target": "collect"}
+, "collect":
+    { "type": "install"
+    , "deps": [["TREE", null, "."]]
+    }
+}
+EOF
+
+cat > TARGETS.compute <<'EOF'
+{ "": {"type": "export", "target": "generate"}
+, "generate":
+  { "type": "generic"
+  , "outs": ["TARGETS"]
+  , "deps": ["generate.py"]
+  , "cmds":
+    [ { "type": "join"
+      , "separator": " "
+      , "$1":
+        [ "python3"
+        , "generate.py"
+        , "10"
+        , ">"
+        , "TARGETS"
+        ]
+      }
+    ]
+  }
+}
+EOF
+
+mkdir -p "${ROOT}/main"
+cd "${ROOT}/main"
+
+cat > repo-config.json <<EOF
+{ "repositories":
+    { "targets":
+        { "repository":
+            { "type": "file"
+            , "path": "${TARGETS_DIR}"
+            , "pragma": {"to_git": true}
+            }
+        }
+    , "base":
+        { "repository":
+            { "type": "file"
+            , "path": "${SRC_DIR}"
+            , "pragma": {"to_git": true}
+            }
+        , "target_root": "targets"
+        , "target_file_name": "TARGETS.collect"
+        }
+    , "computed":
+        { "repository":
+            { "type": "computed"
+            , "repo": "base"
+            , "target": ["", ""]
+            }
+        , "target_root": "targets"
+        , "target_file_name": "TARGETS.compute"
+        }
+    }
+}
+EOF
+cat repo-config.json
+
+# Ensure just-mr handles "target_file_name" of computed roots properly.
+
+echo
+echo Building computed
+echo
+"${JUST_MR}" --norc --local-build-root "${LBRDIR}" -C repo-config.json \
+            --main computed  --just "${JUST}" \
+            install -L '["env", "PATH='"${PATH}"'"]' -o "${OUT}/base" 2>&1
+echo
+
+echo OK
-- 
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