generate

#!/usr/bin/python3

import glob
import subprocess
import os.path
import shutil
import errno

# Can upload with rsync -a -v _site/ <dest>/

# Could extend this with using a cache of sha256 output files
# to see if we should regenerate or not,
# but just cleaning _site/ is easier before build
# and using raco to update during development.
def main():
    dirname = os.path.dirname(__file__)
    output_dir = os.path.join(dirname, "_site/")

    print("Generating site to", output_dir)

    # First make sure we've generated all files.
    for f in glob.glob('*.pm'):
        output = os.path.splitext(f)[0]
        if os.path.isfile(output):
            print("Skip", f)
            continue
        subprocess.call(["raco", "pollen", "render", f])

    # sassc sass/main.scss --style compressed > css/main.css
    with open('css/main.css', 'w') as main:
        print("Generating css/main.css")
        subprocess.call(["sassc", "sass/main.scss", "--style", "compressed"],
            stdout=main)

    # Clean destination directory.
    if not os.path.exists(output_dir):
        print("Creating", output_dir)
        os.makedirs(output_dir)
    else:
        print("Cleaning", output_dir)
        for root, dirs, files in os.walk(output_dir):
            for f in files:
                os.unlink(os.path.join(root, f))
            for d in dirs:
                shutil.rmtree(os.path.join(root, d))

    # Then copy all relevant files.
    for match in ["*.html", "*.xml", "css/", "files/",
                  "images/", "fonts/", "favicon*"]:
        for src in glob.glob(match):
            dst = os.path.join(output_dir, src)
            src = os.path.join(dirname, src)
            copy(src, dst)
    # Need to remove files generated from .p extensions.
    # Easier to just do it after than change capture above.
    for pfile in glob.glob("*.p"):
        actual = os.path.join(output_dir, os.path.splitext(pfile)[0])
        if os.path.isfile(actual):
            os.unlink(actual)
    print("Done")


# Copying in python seems... Difficult.
def copy(src, dst):
    try:
        shutil.copytree(src, dst)
    except OSError as exc: # python >2.5
        if exc.errno == errno.ENOTDIR:
            shutil.copy(src, dst)
        else: raise

if __name__ == '__main__':
    main()