feat: Implement DeepEvalEvaluator

.github/labeler.yml

@@ -94,6 +94,11 @@ integration:weaviate:
       - any-glob-to-any-file: "integrations/weaviate/**/*"
       - any-glob-to-any-file: ".github/workflows/weaviate.yml"
 
+integration:deepeval:
+  - changed-files:
+      - any-glob-to-any-file: "integrations/deepeval/**/*"
+      - any-glob-to-any-file: ".github/workflows/deepeval.yml"
+
 # Topics
 topic:CI:
   - changed-files:

.github/workflows/deepeval.yml

@@ -0,0 +1,60 @@
+# This workflow comes from https://github.com/ofek/hatch-mypyc
+# https://github.com/ofek/hatch-mypyc/blob/5a198c0ba8660494d02716cfc9d79ce4adfb1442/.github/workflows/test.yml
+name: Test / deepeval
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+  pull_request:
+    paths:
+      - "integrations/deepeval/**"
+      - ".github/workflows/deepeval.yml"
+
+defaults:
+  run:
+    working-directory: integrations/deepeval
+
+concurrency:
+  group: deepeval-${{ github.head_ref }}
+  cancel-in-progress: true
+
+env:
+  PYTHONUNBUFFERED: "1"
+  FORCE_COLOR: "1"
+
+jobs:
+  run:
+    name: Python ${{ matrix.python-version }} on ${{ startsWith(matrix.os, 'macos-') && 'macOS' || startsWith(matrix.os, 'windows-') && 'Windows' || 'Linux' }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        python-version: ["3.9", "3.10"]
+
+    steps:
+      - name: Support longpaths
+        if: matrix.os == 'windows-latest'
+        working-directory: .
+        run: git config --system core.longpaths true
+
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install Hatch
+        run: pip install --upgrade hatch
+
+      - name: Lint
+        if: matrix.python-version == '3.9' && runner.os == 'Linux'
+        run: hatch run lint:all
+
+      - name: Generate docs
+        if: matrix.python-version == '3.9' && runner.os == 'Linux'
+        run: hatch run docs
+
+      - name: Run tests
+        run: hatch run cov

README.md

@@ -66,6 +66,7 @@ deepset-haystack
 | [amazon-bedrock-haystack](integrations/amazon-bedrock/)             | Generator           | [![PyPI - Version](https://img.shields.io/pypi/v/amazon-bedrock-haystack.svg)](https://pypi.org/project/amazon-bedrock-haystack)                         | [![Test / amazon_bedrock](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/amazon_bedrock.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/amazon_bedrock.yml)                   |
 | [chroma-haystack](integrations/chroma/)                             | Document Store      | [![PyPI - Version](https://img.shields.io/pypi/v/chroma-haystack.svg)](https://pypi.org/project/chroma-haystack)                                         | [![Test / chroma](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/chroma.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/chroma.yml)                                           |
 | [cohere-haystack](integrations/cohere/)                             | Embedder, Generator | [![PyPI - Version](https://img.shields.io/pypi/v/cohere-haystack.svg)](https://pypi.org/project/cohere-haystack)                                         | [![Test / cohere](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/cohere.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/cohere.yml)                                           |
+| [deepeval-haystack](integrations/deepeval/)                         | Evaluator           | [![PyPI - Version](https://img.shields.io/pypi/v/deepeval-haystack.svg)](https://pypi.org/project/deepeval-haystack)                                     | [![Test / deepeval](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/deepeval.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/deepeval.yml)                                     |
 | [elasticsearch-haystack](integrations/elasticsearch/)               | Document Store      | [![PyPI - Version](https://img.shields.io/pypi/v/elasticsearch-haystack.svg)](https://pypi.org/project/elasticsearch-haystack)                           | [![Test / elasticsearch](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/elasticsearch.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/elasticsearch.yml)                      |
 | [google-ai-haystack](integrations/google_ai/)                       | Generator           | [![PyPI - Version](https://img.shields.io/pypi/v/google-ai-haystack.svg)](https://pypi.org/project/google-ai-haystack)                                   | [![Test / google-ai](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_ai.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_ai.yml)                                  |
 | [google-vertex-haystack](integrations/google_vertex/)               | Generator           | [![PyPI - Version](https://img.shields.io/pypi/v/google-vertex-haystack.svg)](https://pypi.org/project/google-vertex-haystack)                           | [![Test / google-vertex](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_vertex.yml/badge.svg)](https://github.com/deepset-ai/haystack-core-integrations/actions/workflows/google_vertex.yml)                      |

integrations/deepeval/LICENSE.txt

@@ -0,0 +1,73 @@
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integrations/deepeval/README.md

@@ -0,0 +1,36 @@
+# deepeval-haystack
+
+[![PyPI - Version](https://img.shields.io/pypi/v/deepeval-haystack.svg)](https://pypi.org/project/deepeval-haystack)
+[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/deepeval-haystack.svg)](https://pypi.org/project/deepeval-haystack)
+
+---
+
+**Table of Contents**
+
+- [deepeval-haystack](#deepeval-haystack)
+  - [Installation](#installation)
+  - [Testing](#testing)
+  - [Examples](#examples)
+  - [License](#license)
+
+## Installation
+
+```console
+pip install deepeval-haystack
+```
+
+For more information about the deepeval evaluation framework, please refer to their [documentation](https://docs.confident-ai.com/docs/evaluation-introduction).
+
+## Testing
+
+```console
+hatch run test
+```
+
+## Examples
+
+You can find a code example showing how to use the Evaluator under the `example/` folder of this repo.
+
+## License
+
+`deepeval-haystack` is distributed under the terms of the [Apache-2.0](https://spdx.org/licenses/Apache-2.0.html) license.

integrations/deepeval/example/example.py

@@ -0,0 +1,37 @@
+# A valid OpenAI API key is required to run this example.
+
+from haystack import Pipeline
+from haystack_integrations.components.evaluators.deepeval import DeepEvalEvaluator, DeepEvalMetric
+
+QUESTIONS = [
+    "Which is the most popular global sport?",
+    "Who created the Python language?",
+]
+CONTEXTS = [
+    [
+        "The popularity of sports can be measured in various ways, including TV viewership, social media presence, number of participants, and economic impact.",
+        "Football is undoubtedly the world's most popular sport with major events like the FIFA World Cup and sports personalities like Ronaldo and Messi, drawing a followership of more than 4 billion people.",
+    ],
+    [
+        "Python, created by Guido van Rossum in the late 1980s, is a high-level general-purpose programming language.",
+        "Its design philosophy emphasizes code readability, and its language constructs aim to help programmers write clear, logical code for both small and large-scale software projects.",
+    ],
+]
+RESPONSES = [
+    "Football is the most popular sport with around 4 billion followers worldwide",
+    "Python language was created by Guido van Rossum.",
+]
+
+pipeline = Pipeline()
+evaluator = DeepEvalEvaluator(
+    metric=DeepEvalMetric.FAITHFULNESS,
+    metric_params={"model": "gpt-4"},
+)
+pipeline.add_component("evaluator", evaluator)
+
+# Each metric expects a specific set of parameters as input. Refer to the
+# DeepEvalMetric class' documentation for more details.
+results = pipeline.run({"evaluator": {"questions": QUESTIONS, "contexts": CONTEXTS, "responses": RESPONSES}})
+
+for output in results["evaluator"]["results"]:
+    print(output)

integrations/deepeval/pydoc/config.yml

@@ -0,0 +1,30 @@
+loaders:
+  - type: haystack_pydoc_tools.loaders.CustomPythonLoader
+    search_path: [../src]
+    modules:
+      [
+        "haystack_integrations.components.evaluators.deepeval.evaluator",
+        "haystack_integrations.components.evaluators.deepeval.metrics",
+      ]
+    ignore_when_discovered: ["__init__"]
+processors:
+  - type: filter
+    expression:
+    documented_only: true
+    do_not_filter_modules: false
+    skip_empty_modules: true
+  - type: smart
+  - type: crossref
+renderer:
+  type: haystack_pydoc_tools.renderers.ReadmePreviewRenderer
+  excerpt: DeepEval integration for Haystack
+  category_slug: haystack-integrations
+  title: Chroma
+  slug: integrations-deepeval
+  order: 1
+  markdown:
+    descriptive_class_title: false
+    descriptive_module_title: true
+    add_method_class_prefix: true
+    add_member_class_prefix: false
+    filename: _readme_deepeval.md