98 lines
4.2 KiB
Markdown
98 lines
4.2 KiB
Markdown
# CCE Search Prototype
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An unofficial, experimental interface to search records digitized by NYPL's
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[Catalog of Copyright Entries project](https://github.com/NYPL/catalog_of_copyright_entries_project).
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Forked from Sean Redmond's [original protype](https://github.com/seanredmond/cce-search-prototype).
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## Required software
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- Python 3.7
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- Pipenv
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### Why Pipenv?
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Using a virtual environment is very important for ensuring that all work is done in a standardized Python environment. In order to simplify using a virtual environment as well as to give us the ability to create deterministic builds, we use [Pipenv](https://realpython.com/pipenv-guide/).
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## Installing Pipenv
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### Mac
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`brew install pipenv`
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*Note: Mac users can also install through Pip, but using Homebrew is recommended.*
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### Other systems
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`pip install --user pipenv`
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*Note: You may have versions of Pip installed for both Python 2 and 3. If so, your Python 3 Pip will be called pip3. Check if this is the case by running `pip --version` and `pip3 --version`.*
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## Installing all dependencies and creating the virtual environment
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Run `pipenv install` in the project's main directory. If installing for development purposes, rather than deployment, add the `--dev` flag to install required development packages as well.
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## Installing new packages
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In the project directory, use `pipenv install` the same way you would use `pip install`. The package will be installed in the virtual environment, and the Pipfile will be updated.
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For example, to install the package requests: `pipenv install requests`
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To specify a specific package version: `pipenv install flask==0.12.1`
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To install packages for development purposes (e.g. ones that aren't required to build and run the project, but are useful for working on it), you can use the --dev flag. For example, `pipenv install pytest --dev`.
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## Activating the virtual environment
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To activate the virtual environment in your current shell, run `pipenv shell`. The virtual environment will be indicated by a change to your terminal prompt.
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## "Locking" the virtual environment
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To ensure a deterministic build and "lock" the versions of packages and their subdependencies, run `pipenv lock`. This will ensure Pipfile.lock is up to date. Do this when you intend to push any changes to the production environment.
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## Remove an unneeded package
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To remove a package from the Pipfile and uninstall it from your virtual environment, use `pipenv uninstall`.
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For example, to remove beautifulsoup: `pipenv uninstall beautifulsoup`
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## Run a single command in the virtual environment without activating it
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`$ pipenv run [command_goes_here]`
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## Closing the virtual environment
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After you have activated the virtual environment, press `ctrl-d` to exit. Your terminal prompt should return to its original appearance.
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**Always do this when you're finished working in the virtual environment, otherwise your other Python work will screw up the project!**
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## Deploying the project locally
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After activating the virtual environment, run `flask run` within the root directory of the project:
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The Flask app will then be running at [localhost:5000](localhost:5000).
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Optionally, use `export FLASK_ENV=development` before running the app to enable useful debugging tools.
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To close the application, end the process with `ctrl-c` in your terminal.
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## Running Tests
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In the root directory of the project, run
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`python -m pytest`.
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This will run the entire test suite. New test functions and files must be contained in the `tests/` directory.
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To see test coverage data, run `python -m pytest --cov`. To generate an HTML coverage report, run `python -m pytest --cov-report html tests/ --cov=./`. Then, run `python -m http.server` and navigate to [localhost:8000](localhost:8000) to view it.
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## Troubleshooting
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The 'pipenv==20XX.XX.XX' distribution was not found and is required by the application
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Reinstall Pipenv, with the methods specified [above](#Installing-Pipenv).
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Warning: Your Pipfile requires python_version 3.7, but you are using X.X.X (/Users/...).
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$ pipenv check will surely fail.
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This means your Python installation has changed since you first created the venv with `pipenv install`. Delete it using `pipenv --rm`, then [rebuild it](#Installing-all-dependencies-and-creating-the-virtual-environment). |