ci: Add GitLab CI and PyPI deployment

Author: karatugo

.gitlab-ci.yml

@@ -0,0 +1,48 @@
+image: "python:3.10"
+
+stages:
+  - test
+  - deploy
+
+variables:
+  PIP_CACHE_DIR: "$CI_PROJECT_DIR/.pip-cache"
+
+cache:
+  paths:
+    - .pip-cache/
+
+.before_script_template:
+  before_script:
+    - pip install --upgrade pip
+    - pip install poetry
+    - poetry install
+
+test:
+  extends: .before_script_template
+  stage: test
+  script:
+    - poetry run pytest
+  only:
+    - merge_requests
+    - main
+    - tags
+
+deploy_test:
+  extends: .before_script_template
+  stage: deploy
+  script:
+    - poetry config repositories.testpypi https://test.pypi.org/legacy/
+    - poetry build
+    - poetry publish --repository=testpypi --username=$PYPI_API_TOKEN_USERNAME --password=$PYPI_API_TOKEN_PASSWORD
+  only:
+    - tags
+  when: manual
+
+deploy_prod:
+  extends: .before_script_template
+  stage: deploy
+  script:
+    - poetry build
+    - poetry publish --username=$PYPI_API_TOKEN_USERNAME --password=$PYPI_API_TOKEN_PASSWORD
+  only:
+    - tags

README.md

@@ -10,7 +10,11 @@ A command-line tool for genomic-wide association studies (GWAS) data validation
 
 ## Installation
 
-TODO
+Install from PyPI:
+
+```bash
+pip install gwas-assoc
+```
 
 ## Usage
 
@@ -44,11 +48,8 @@ poetry shell
 # Build the package (creates .whl and .tar.gz in dist/)
 poetry build
 
-# Install your package in development mode
+# Install your new package in development mode
 poetry install
-
-# Export requirements.txt (if needed)
-poetry export -f requirements.txt --output requirements.txt
 ```
 
 ### Testing