fh-fablib
Project description
Usage
Install pipx
Install fh-fablib
pipx install fh_fablib if you’re happy with the packaged version
pipx install --editable git+ssh://git@github.com/feinheit/fh-fablib.git@main#egg=fh_fablib otherwise
Add a fabfile.py to your project. A minimal example follows:
from pathlib import Path import fh_fablib as fl fl.require("1.0.20200824") fl.config.update(base=Path(__file__).parent, host="www-data@feinheit06.nine.ch") fl.config.update(domain="example.com", branch="main", remote="production") ns = fl.Collection(*fl.GENERAL, *fl.NINE)Run fab --list to get a list of commands.
Loading the fh_fablib module automatically creates .git/hooks/pre-commit which runs fab check before each commit.
Configuration values
app = "app": Name of primary Django app containing settings, assets etc.
base: pathlib.Path object pointing to the base dir of the project.
branch: Branch containing code to be deployed.
domain: Primary domain of website. The database name and cache key prefix are derived from this value.
host: SSH connection string (username@server)
remote: git remote name for the server. Only used for the fetch task.
Adding or overriding bundled tasks
For the sake of an example, suppose that additional processes should be restarted after deployment. A custom deploy task follows:
# ... continuing the fabfile above
@fl.task
def deploy(ctx):
"""Deploy once 🔥"""
fl.deploy(ctx) # Reuse
with fl.Connection(fl.config.host) as conn:
fl.run(conn, "systemctl --user restart other.service")
ns.add_task(deploy)Multiple environments
If you need multiple environments, add tasks which only update fl.config as follows:
from pathlib import Path
import fh_fablib as fl
fl.require("1.0.20201110")
fl.config.update(base=Path(__file__).parent, host="www-data@feinheit06.nine.ch")
# Not required, but produces a nicer error message if users forget
# to set an environment with which to interact:
fl.config.update(environments=["production", "stage"])
@fl.task(aliases=["p"])
def production(ctx):
fl.config.update(domain="example.com", branch="master", remote="production")
@fl.task(aliases=["s"])
def stage(ctx):
fl.config.update(domain="stage.example.com", branch="develop", remote="stage")
ns = fl.Collection(*fl.GENERAL, *fl.NINE, production, stage)Now, fab production pull-db, fab stage deploy and friends should work as expected.
Available tasks
fh_fablib.GENERAL
bitbucket: Create a repository on Bitbucket and push the code
check: Check the coding style
cm: Compile the translation catalogs
deploy: Deploy once 🔥
dev: Run the development server for the frontend and backend
fetch: Ensure a remote exists for the server and fetch
fmt: Format the code
freeze: Freeze the virtualenv’s state
github: Create a repository on GitHub and push the code
local: Local environment setup
mm: Update the translation catalogs
pull-db: Pull a local copy of the remote DB and reset all passwords
update: Update virtualenv and node_modules to match the lockfiles
upgrade: Re-create the virtualenv with newest versions of all libraries
fh_fablib.NINE
nine: Run all nine🌟 setup tasks in order
nine-alias-add: Add aliasses to a nine-manage-vhost virtual host
nine-alias-remove: Remove aliasses from a nine-manage-vhost virtual host
nine-checkout: Checkout the repository on the server
nine-db-dotenv: Create a database and initialize the .env. Currently assumes that the shell user has superuser rights (either through PGUSER and PGPASSWORD environment variables or through peer authentication)
nine-disable: Disable a virtual host, dump and remove the DB and stop the gunicorn@ unit
nine-ssl: Activate SSL
nine-unit: Start and enable a gunicorn@ unit
nine-venv: Create a venv and install packages from requirements.txt
nine-vhost: Create a virtual host using nine-manage-vhosts
Building blocks
The following functions may be used to build your own tasks. They cannot be executed directly from the command line.
Running commands
run(c, ...): Wrapper around Context.run or Connection.run which always sets a few useful arguments (echo=True, pty= True and replace_env=False at the time of writing)
Checks
_check_flake8(ctx): Run venv/bin/flake8
_check_django(ctx): Run Django’s checks
_check_prettier(ctx): Check whether the frontend code conforms to prettier’s formatting
_check_eslint(ctx): Run ESLint
_check_branch(ctx): Terminates if checked out branch does not match configuration.
_check_no_uncommitted_changes(ctx): Terminates if there are uncommitted changes on the server.
Formatters
_fmt_isort(ctx): Run isort
_fmt_black(ctx): Run black
_fmt_prettier(ctx): Run prettier
_fmt_tox_style(ctx): Run tox -e style
Helpers
_local_env(path=".env"): speckenv.env for a local env file
_srv_env(conn, path): speckenv.env for a remote env file
_python3(): Return the path of a Python 3 executable. Prefers newer Python versions.
_local_dotenv_if_not_exists(): Ensure a local .env with a few default values exists. Does nothing if .env exists already.
_local_dbname(): Ensure a local .env exists and return the database name.
_dbname_from_dsn(dsn): Extract the database name from a DSN.
_dbname_from_domain(domain): Mangle the domain to produce a string suitable as a database name, database user and cache key prefix.
_concurrently(ctx, jobs): Run a list of shell commands concurrently and wait for all of them to terminate (or Ctrl-C).
_random_string(length, chars=None): Return a random string of length, suitable for generating secret keys etc.
_reset_passwords(ctx): Set all user passwords to "password".
require(version): Terminate if fh_fablib is older.
terminate(msg): Terminate processing with an error message.
Recommended configuration files
.editorconfig
# top-most EditorConfig file
root = true
[*]
end_of_line = lf
insert_final_newline = true
charset = utf-8
trim_trailing_whitespace = true
indent_style = space
indent_size = 4
[*.{html,js,scss}]
indent_size = 2
.eslintrc.js
module.exports = {
env: {
browser: true,
es2020: true,
node: true,
},
extends: [
"eslint:recommended",
"prettier",
"preact",
// "prettier/react",
// "plugin:react/recommended",
],
parser: "babel-eslint",
parserOptions: {
ecmaFeatures: {
experimentalObjectRestSpread: true,
jsx: true,
},
sourceType: "module",
},
plugins: [
// "react",
// "react-hooks",
],
rules: {
"no-unused-vars": [
"error",
{
argsIgnorePattern: "^_",
varsIgnorePattern: "React|Fragment|h|^_",
},
],
// "react/prop-types": "off",
// "react/display-name": "off",
// "react-hooks/rules-of-hooks": "warn", // Checks rules of Hooks
// "react-hooks/exhaustive-deps": "warn", // Checks effect dependencies
},
settings: {
react: {
version: "detect",
},
},
}
setup.cfg
[flake8] exclude=venv,build,docs,.tox,migrate,migrations,node_modules ignore=E203,W503 max-line-length=88 max-complexity=10
package.json
{
"name": "feinheit.ch",
"description": "feinheit",
"version": "0.0.1",
"private": true,
"dependencies": {
"babel-eslint": "^10.0.3",
"eslint": "^7.7.0",
"eslint-config-prettier": "^6.11.0",
"fh-webpack-config": "^1.0.7",
"prettier": "^2.1.1"
},
"eslintIgnore": [
"app/static/app/lib/",
"app/static/app/plugin_buttons.js"
]
}
webpack.config.js
const merge = require("webpack-merge")
const config = require("fh-webpack-config")
module.exports = merge.smart(
config.commonConfig,
// config.preactConfig,
// config.reactConfig,
config.chunkSplittingConfig
)
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