blog/tasks.py

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import os
import shlex
import shutil
import sys
from invoke import task
from invoke.main import program
from pelican import main as pelican_main
from pelican.server import ComplexHTTPRequestHandler, RootedHTTPServer
from pelican.settings import DEFAULT_CONFIG, get_settings_from_file
OPEN_BROWSER_ON_SERVE = False
SETTINGS_FILE_BASE = "pelicanconf.py"
SETTINGS = {}
SETTINGS.update(DEFAULT_CONFIG)
LOCAL_SETTINGS = get_settings_from_file(SETTINGS_FILE_BASE)
SETTINGS.update(LOCAL_SETTINGS)
CONFIG = {
"settings_base": SETTINGS_FILE_BASE,
"settings_publish": "publishconf.py",
# Output path. Can be absolute or relative to tasks.py. Default: 'output'
"deploy_path": SETTINGS["OUTPUT_PATH"],
# Host and port for `serve`
"host": "localhost",
"port": 8000,
# for publication
"ssh_user": "fmouhart",
"ssh_host": "blog.epheme.re",
"ssh_port": 22,
"ssh_path": "/srv/http/blog",
}
@task
def clean(c):
"""Remove generated files"""
if os.path.isdir(CONFIG["deploy_path"]):
shutil.rmtree(CONFIG["deploy_path"])
os.makedirs(CONFIG["deploy_path"])
@task
def build(c):
"""Build local version of site"""
pelican_run("-s {settings_base}".format(**CONFIG))
@task
def rebuild(c):
"""`build` with the delete switch"""
pelican_run("-d -s {settings_base}".format(**CONFIG))
@task
def regenerate(c):
"""Automatically regenerate site upon file modification"""
pelican_run("-r -s {settings_base}".format(**CONFIG))
@task
def serve(c):
"""Serve site at http://$HOST:$PORT/ (default is localhost:8000)"""
class AddressReuseTCPServer(RootedHTTPServer):
allow_reuse_address = True
server = AddressReuseTCPServer(
CONFIG["deploy_path"],
(CONFIG["host"], CONFIG["port"]),
ComplexHTTPRequestHandler,
)
if OPEN_BROWSER_ON_SERVE:
# Open site in default browser
import webbrowser
webbrowser.open("http://{host}:{port}".format(**CONFIG))
sys.stderr.write("Serving at {host}:{port} ...\n".format(**CONFIG))
server.serve_forever()
@task
def reserve(c):
"""`build`, then `serve`"""
build(c)
serve(c)
@task
def preview(c):
"""Build production version of site"""
pelican_run("-s {settings_publish}".format(**CONFIG))
@task
def livereload(c):
"""Automatically reload browser tab upon file modification."""
from livereload import Server
def cached_build():
cmd = "-s {settings_base} -e CACHE_CONTENT=true LOAD_CONTENT_CACHE=true"
pelican_run(cmd.format(**CONFIG))
cached_build()
server = Server()
theme_path = SETTINGS["THEME"]
watched_globs = [
CONFIG["settings_base"],
f"{theme_path}/templates/**/*.html",
]
content_file_extensions = [".md", ".rst"]
for extension in content_file_extensions:
content_glob = "{}/**/*{}".format(SETTINGS["PATH"], extension)
watched_globs.append(content_glob)
static_file_extensions = [".css", ".js"]
for extension in static_file_extensions:
static_file_glob = f"{theme_path}/static/**/*{extension}"
watched_globs.append(static_file_glob)
for glob in watched_globs:
server.watch(glob, cached_build)
if OPEN_BROWSER_ON_SERVE:
# Open site in default browser
import webbrowser
webbrowser.open("http://{host}:{port}".format(**CONFIG))
server.serve(host=CONFIG["host"], port=CONFIG["port"], root=CONFIG["deploy_path"])
@task
def publish(c):
"""Publish to production via rsync"""
pelican_run("-s {settings_publish}".format(**CONFIG))
c.run(
'rsync --delete --exclude ".DS_Store" -rv -c '
'-e "ssh -p {ssh_port}" '
"{} {ssh_user}@{ssh_host}:{ssh_path}".format(
CONFIG["deploy_path"].rstrip("/") + "/", **CONFIG
)
)
def pelican_run(cmd):
cmd += " " + program.core.remainder # allows to pass-through args to pelican
pelican_main(shlex.split(cmd))