build(flox): Reorganize Flox environments

Prepare for adding more Flox environments by moving the single existing
environment to a subdirectory and add a convenience script to run this
minimal environment in isolation.

Signed-off-by: Sebastian Schuberth <sebastian@doubleopen.org>

Author: sschuberth

.github/workflows/build-and-test.yml

@@ -73,7 +73,7 @@ jobs:
         disable-metrics: true
       if: runner.os != 'Windows'
     - name: Run unit tests in a minimal environment
-      run: env -i "$(which flox)" activate -- ./gradlew --scan test jacocoTestReport
+      run: ./flox/run_isolated.sh minimal ./gradlew --scan test jacocoTestReport
       if: runner.os != 'Windows'
     - name: Run unit tests
       run: ./gradlew --scan test jacocoTestReport
@@ -101,7 +101,7 @@ jobs:
       with:
         disable-metrics: true
     - name: Run functional tests that do not require external tools
-      run: env -i "$(which flox)" activate -- ./gradlew --scan -Dkotest.tags=!RequiresExternalTool funTest jacocoFunTestReport
+      run: ./flox/run_isolated.sh minimal ./gradlew --scan -Dkotest.tags=!RequiresExternalTool funTest jacocoFunTestReport
     - name: Create Test Summary
       uses: test-summary/action@31493c76ec9e7aa675f1585d3ed6f1da69269a86 # v2
       with:

REUSE.toml

@@ -10,6 +10,11 @@ path = ".**"
 SPDX-FileCopyrightText = "2017 The ORT Project Authors (see <https://github.com/oss-review-toolkit/ort/blob/main/NOTICE>)"
 SPDX-License-Identifier = "Apache-2.0"
 
+[[annotations]]
+path = "**/.flox/**"
+SPDX-FileCopyrightText = "2025 The ORT Project Authors (see <https://github.com/oss-review-toolkit/ort/blob/main/NOTICE>)"
+SPDX-License-Identifier = "Apache-2.0"
+
 [[annotations]]
 path = "**/.gitattributes"
 SPDX-FileCopyrightText = "2018 The ORT Project Authors (see <https://github.com/oss-review-toolkit/ort/blob/main/NOTICE>)"

.flox/.gitattributes flox/minimal/.flox/.gitattributes.flox/.gitattributes renamed to flox/minimal/.flox/.gitattributes

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2025 The ORT Project Authors (see <https://github.com/oss-review-toolkit/ort/blob/main/NOTICE>)
+#
+# 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
+#
+#     https://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.
+#
+# SPDX-License-Identifier: Apache-2.0
+# License-Filename: LICENSE
+
+SELF="${BASH_SOURCE[0]}"
+
+if [ "$#" -lt 2 ]; then
+    echo "Usage: $SELF <environment directory> <command to run>" >&2
+    exit 1
+fi
+
+ENV_DIR="$(dirname "$SELF")/$1"
+shift
+
+env -i "$(which flox)" activate -d "$ENV_DIR" -- "$@"