FreeCAD

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# SPDX-License-Identifier: LGPL-2.1-or-later
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# ***************************************************************************
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# *                                                                         *
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# *   Copyright (c) 2023 0penBrain.                                         *
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# *                                                                         *
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# *   This file is part of FreeCAD.                                         *
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# *                                                                         *
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# *   FreeCAD is free software: you can redistribute it and/or modify it    *
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# *   under the terms of the GNU Lesser General Public License as           *
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# *   published by the Free Software Foundation, either version 2.1 of the  *
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# *   License, or (at your option) any later version.                       *
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# *                                                                         *
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# *   FreeCAD is distributed in the hope that it will be useful, but        *
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# *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
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# *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
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# *   Lesser General Public License for more details.                       *
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# *                                                                         *
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# *   You should have received a copy of the GNU Lesser General Public      *
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# *   License along with FreeCAD. If not, see                               *
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# *   <https://www.gnu.org/licenses/>.                                      *
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# *                                                                         *
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# ***************************************************************************
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# This workflow is a complementary one to the master CI.
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# It aims at doing cleanup operations after a CI workflow ran.
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# Being triggered when the master workflow ends allows it to run with necessary privileges.
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# Indeed it always run with push-like rights even for PR events.
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# In order to work, this cleanup workflow imposes name formatting for caches
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# Caches that have to be cleaned (typically compiler caches) shall be named as below :
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# ${MARK}-${CONTEXT}-${REF}-${ID}
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# with :
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# ${MARK} => A mark identifying a cache to be cleaned, defined as being "FC" (without quotes)
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# ${CONTEXT} => A string identifying cache saving context, typically OS name or compiler name
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# ${REF} => The full reference of the branch owning the cache (starting with "/refs/pull/" or "/refs/heads/")
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# ${ID} => A cache unique identifier, generally an ascending number, in no case containing a '-' (hyphen) sign
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name: FreeCAD CI cleaner
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on:
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  workflow_run:
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    workflows: [FreeCAD master CI]
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    types:
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      - completed
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env:
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  dryrun: false
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concurrency:
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  group: FC-CI-cleaner
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  cancel-in-progress: false
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jobs:
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  CachesCleanup:
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    runs-on: ubuntu-latest
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    env:
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      logdir: /tmp/log/
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    steps:
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      - name: Make needed directories
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        run: |
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          mkdir -p ${{ env.logdir }}
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      - name: Get existing caches for the repo
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        run: |
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          curl -H "Accept: application/vnd.github+json" -H "authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" $GITHUB_API_URL/repos/$GITHUB_REPOSITORY/actions/caches > ${{ env.logdir }}caches.json
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      - name: Extract pull request caches
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        run: |
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          # Extract caches of which names starts with MARK and contains "/refs/pull/"
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          jq ".actions_caches | map(select(.key | startswith(\"FC-\"))) | map(select(.key | contains(\"refs/pull/\")))" ${{ env.logdir }}caches.json > ${{ env.logdir }}pulls.json
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      - name: Extract and delete pull request obsolete cache IDs
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        run: |
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          # Group the caches by MARK-CONTEXT-REF, sort by ascending last access datetime and keep all but the last as to be deleted
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          # As a consequence, for pull requests, only the most recent cache is kept (one for each context and for each PR)
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          PRID=$(jq "group_by(.key | .[:rindex(\"-\")]) | .[] | sort_by(.last_accessed_at) | .[:-1][].id" ${{ env.logdir }}pulls.json)
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          for id in $PRID
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          do
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            echo "Trying to delete pull request obsolete cache ID : $id"
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            if [ ${{ env.dryrun }} == "false" ]
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            then
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              curl -X DELETE -H "Accept: application/vnd.github+json" -H "authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" $GITHUB_API_URL/repos/$GITHUB_REPOSITORY/actions/caches/$id
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            else
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              echo "DRYRUN: executing : curl -X DELETE -H \"Accept: application/vnd.github+json\" $GITHUB_API_URL/repos/$GITHUB_REPOSITORY/actions/caches/$id"
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            fi
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          done
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      - name: Extract push caches
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        run: |
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          # Extract caches of which names starts with MARK and contains "/refs/heads/"
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          jq ".actions_caches | map(select(.key | startswith(\"FC-\"))) | map(select(.key | contains(\"refs/heads/\")))" ${{ env.logdir }}caches.json > ${{ env.logdir }}pushes.json
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      - name: Extract and delete push obsolete cache IDs
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        run: |
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          # Group the caches by MARK-CONTEXT-REF, sort by ascending last access datetime, keep all but the last 2 and keep all accessed for more than 1 hour as to be deleted
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          # As a consequence, for pushes (repo branches), at least 2 caches (for each context and for each branch) are kept, others are deleted if they have been useless for more than 1 hour
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          PSID=$(jq "group_by(.key | .[:rindex(\"-\")]) | .[] | sort_by(.last_accessed_at) | .[:-2][] | select((.last_accessed_at | if contains(\".\") then .[:rindex(\".\")]+\"Z\" else . end | fromdateiso8601) < (now | floor - 3600)) | .id" ${{ env.logdir }}pushes.json)
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          for id in $PSID
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          do
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            echo "Trying to delete push obsolete cache ID : $id"
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            if [ ${{ env.dryrun }} == "false" ]
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            then
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              curl -X DELETE -H "Accept: application/vnd.github+json" -H "authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" $GITHUB_API_URL/repos/$GITHUB_REPOSITORY/actions/caches/$id
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            else
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              echo "DRYRUN: executing : curl -X DELETE -H \"Accept: application/vnd.github+json\" $GITHUB_API_URL/repos/$GITHUB_REPOSITORY/actions/caches/$id"
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            fi
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          done
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      - name: Upload logs
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        if: always()
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        uses: actions/upload-artifact@v4
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        with:
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          name: ${{ github.job }}-Logs
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          path: |
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            ${{ env.logdir }}
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