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initial: add rero-invenio-thumbnails extension
Lightweight Invenio extension for discovering book thumbnail URLs from multiple providers. Features: - Multi-provider architecture with fallback chain - 6 built-in providers: Files, OpenLibrary, BNF, DNB, GoogleBooks, GoogleAPI - Plugin-based system via entry points for custom providers - Redis-based caching with configurable TTL - RESTful JSON API: GET /thumbnails-url/<isbn> - HTTP retry logic with exponential backoff - Comprehensive test suite: 112 tests, 97% coverage Providers: - FilesProvider: Serve from local filesystem directory - OpenLibraryProvider: Community-driven book cover database - BnfProvider: Bibliothèque nationale de France covers - GoogleBooksProvider: Google Books preview service - GoogleApiProvider: Official Google Books API Architecture: - URL discovery only (no image serving/manipulation) - Chainable provider pattern with first-match-wins strategy - Configurable provider order and retry behavior - Full Sphinx documentation with API reference Co-Authored-by: Peter Weber <peter.weber@rero.ch>
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‎.dockerignore‎

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.git
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*.gitignore
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*.mo
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*.pyc
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*.swp
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‎.editorconfig‎

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# -*- coding: utf-8 -*-
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#
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# This file is part of RERO ILS.
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# Copyright (C) 2017 RERO.
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#
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# RERO ILS is free software; you can redistribute it
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# and/or modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at your option) any later version.
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#
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# RERO ILS is distributed in the hope that it will be
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# useful, but 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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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with RERO ILS; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307, USA.
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#
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# In applying this license, RERO does not
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# waive the privileges and immunities granted to it by virtue of its status
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# as an Intergovernmental Organization or submit itself to any jurisdiction.
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root = true
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[*]
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indent_style = space
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end_of_line = lf
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insert_final_newline = true
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trim_trailing_whitespace = true
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charset = utf-8
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# Python files
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[*.py]
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indent_size = 4
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# isort plugin configuration
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known_first_party = rero_ils
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multi_line_output = 2
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default_section = THIRDPARTY
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skip = .eggs
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# Needed for isort since version 4.3.10
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reverse_relative = true
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# RST files (used by sphinx)
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[*.rst]
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indent_size = 4
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# CSS, HTML, JS, JSON, YML, Typescript
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[*.{scss,css,html,js,json,yml,ts}]
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indent_size = 2
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# Matches the exact files either package.json or .travis.yml
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[{package.json,.travis.yml}]
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indent_size = 2
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# Dockerfile
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indent_size = 4

‎.github/auto_assign.yml‎

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# Set to true to add reviewers to pull requests
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addReviewers: false
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# Set to true to add assignees to pull requests
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addAssignees: author
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runOnDraft: true
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# A number of reviewers added to the pull request
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# Set 0 to add all the reviewers (default: 0)
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# numberOfReviewers: 1
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# A number of assignees to add to the pull request
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# Set to 0 to add all of the assignees.
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# Uses numberOfReviewers if unset.
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# numberOfAssignees: 2
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# A list of keywords to be skipped the process that add reviewers if pull requests include it
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# - wip

‎.github/workflows/auto_assign.yml‎

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name: 'Auto Assign'
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on:
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pull_request_target:
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types: [opened, ready_for_review]
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jobs:
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add-reviews:
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runs-on: ubuntu-latest
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steps:
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- uses: kentaro-m/auto-assign-action@v2.0.0

‎.github/workflows/continuous-integration-test.yml‎

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# RERO Invenio Base
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# Copyright (C) 2025 RERO.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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name: CI
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on: [push, pull_request, workflow_dispatch]
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jobs:
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test:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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python-version: ["3.12"]
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dependencies: ["dev", "deploy"]
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steps:
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- uses: actions/checkout@v4
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- name: Install uv
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uses: astral-sh/setup-uv@v5
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with:
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enable-cache: true
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cache-dependency-glob: uv.lock
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- name: Set up Python
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run: uv python install ${{ matrix.python-version }}
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- name: Update and install dependencies
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if: ${{ matrix.dependencies == 'dev' }}
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run: uv sync --upgrade
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- name: Install locked dependencies
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if: ${{ matrix.dependencies == 'deploy' }}
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run: uv sync --frozen
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- name: Run tests
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run: uv run poe run_tests
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- name: Coverage XML
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if: ${{ matrix.dependencies == 'dev' }}
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run: uv run coverage xml
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- name: Coveralls
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if: ${{ matrix.dependencies == 'dev' }}
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uses: coverallsapp/github-action@v2
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with:
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format: cobertura

‎.github/workflows/pypi-publish.yml‎

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# RERO Invenio Thumbnails
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# Copyright (C) 2026 RERO.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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name: Publish
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on:
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release:
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types: ["published"]
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jobs:
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run:
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name: "Build and publish release"
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runs-on: ubuntu-latest
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environment: pypi
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permissions:
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id-token: write
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steps:
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- uses: actions/checkout@v4
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- name: Install uv
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uses: astral-sh/setup-uv@v5
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with:
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enable-cache: true
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cache-dependency-glob: uv.lock
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- name: Set up Python
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run: uv python install 3.12
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- name: Build wheel
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run: uv build
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- name: Publish package
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run: uv publish

‎.gitignore‎

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# Byte-compiled / optimized / DLL files
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__pycache__/
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*.py[cod]
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# Idea software family
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.idea/
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# C extensions
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*.so
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# Distribution / packaging
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.Python
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env/
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build/
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develop-eggs/
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dist/
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downloads/
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eggs/
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lib/
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lib64/
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parts/
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sdist/
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var/
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*.egg-info/
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*.egg
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Pipfile
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# PyInstaller
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# Usually these files are written by a python script from a template
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# before PyInstaller builds the exe, so as to inject date/other infos into it.
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*.manifest
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*.spec
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# Installer logs
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pip-log.txt
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pip-delete-this-directory.txt
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# Virtual environments
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.venv/
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# Unit test / coverage reports
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htmlcov/
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.tox/
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.coverage
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.coverage.*
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.cache
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nosetests.xml
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coverage.xml
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*,cover
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# Translations
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*.mo
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# Django stuff:
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*.log
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# Sphinx documentation
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docs/_build/
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# PyBuilder
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‎AUTHORS.rst‎

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..
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Copyright (C) 2026 RERO.
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rero-invenio-thumbnails is free software; you can redistribute it
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and/or modify it under the terms of the MIT License; see LICENSE file for
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more details.
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Authors
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=======
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RERO Invenio module that adds thumbnails
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- RERO <software@rero.ch>

‎CHANGES.rst‎

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..
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Copyright (C) 2026 RERO.
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rero-invenio-thumbnails is free software; you can redistribute it
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and/or modify it under the terms of the MIT License; see LICENSE file for
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more details.
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Changes
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=======
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0.1.0 (2026-01-15)
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-------------------
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Initial release
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- Multi-provider thumbnail URL discovery system with fallback chain
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- Six thumbnail providers:
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- Files: Serve from local filesystem directory
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- Open Library: Free, community-driven book cover database
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- BNF (Bibliothèque nationale de France): French national library covers
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- DNB (Deutsche Nationalbibliothek): German national library covers via SRU
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- Google Books API: Official Google Books API integration
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- Google Books: Google Books preview service
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- Plugin-based architecture via entry points for custom providers
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- Redis-based caching via `invenio_cache` with configurable TTL
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- Flask blueprint with `/thumbnails-url/<isbn>` endpoint returning JSON
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- HTTP retry logic with exponential backoff for external providers
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- Configurable retry behavior via `RERO_INVENIO_THUMBNAILS_RETRY_*` settings
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- Environment variable `RERO_THUMBNAILS_DISABLE_RETRIES` to disable retries globally
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- Comprehensive test suite with 120 tests and 97% code coverage
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- Full Sphinx documentation with API reference and usage examples

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