Some documentation expansion.
Add {do} support to jinja systems
This commit is contained in:
Cassowary 2019-05-26 19:39:11 -07:00
parent a0c4381c99
commit 39dde28e35
7 changed files with 133 additions and 8 deletions

5
READMES/Patterns.md Normal file
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# Patterns for Site Design #
These are some simple patterns for things commonly needed in websites of various kinds.
##

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# Template Functions #
These are functions exposed to the templates which perform various useful actions for the site designer.
## get_file_list ##
Return a list of file names based on a wildcard glob, matched against the root of the project.
Prototype: `get_file_list(file_glob, sort_order, reverse, limit) -> [files]`
Arguments:
* file_glob: A standard file glob, for example `*.txt` matches all files that end in `.txt` in the root of the project. (default: `*`)
* sort_order: A string of either `file_path`, `file_name`, `ctime`, `mtime`, `size` and `ext` (default: `ctime`)
* reverse: whether the sort is reversed (default: False)
* limit: The number of entries to return from the top of the list, 0 for unlimited (default: `0`)
Returns:
* A list of file names.
## get_file_name ##
Return the filename that will result from processing the specified file based on the processors that it will be passed through.
Prototype: `get_file_name(file) -> outfile`
Arguments:
* file: The name of a file, with path, from root.
Returns:
* outfile: The name of the file, with path, that will result from processing.
## get_file_content ##
Return the rendered content of specified file. Caution: Can result in infinite loops if two templates include each other.
Prototype: `get_file_content(file) -> content`
Arguments:
* file: The name of the input file, with path, from root.
Returns:
* content: the contents that result from passing the specified file through its processors.
## get_raw ##
Return the raw contents of a source file. It is specifically not passed through any processing.
Prototype: `get_raw(file) -> content`
Arguments:
* file: The name of the input file, with path, from root.
Returns:
* content: the raw contents of the input file
## get_file_metadata ##
Return the metadata tree associated with a particular file.
Prototype: `get_file_metadata(file) -> metadata`
Arguments:
* file: the name of an input file, with path, from root
Returns:
* metadata: A dictionary of metadata loaded from the file tree.
## get_time_iso8601 ##
Return the date/time stamp in ISO 8601 format for a given time_t timestamp for UTC.
Prototype: `get_time_iso8601(timestamp) -> timestamp`
Arguments:
* timestamp: A time_t integer or float, in seconds since Jan 1 1970.
Returns:
* timestamp: A string in ISO8601 format of the date and timestamp, in the UTC timezone.
## get_date_iso8601 ##
Return the date stamp in ISO 8601 format for a given time_t timestamp for UTC.
Prototype: `get_date_iso8601(timestamp) -> timestamp`
Arguments:
* timestamp: A time_t integer or float, in seconds since Jan 1 1970.
Returns:
* timestamp: A string in ISO8601 format of the date stamp, in the UTC timezone.
## pygments_get_css ##
Return a blob of CSS produced from Pygments for a given `style`.
Prototype: `pygments_get_css(style) -> css`
Arguments:
* style (optional): A style identifier for the Pygments' HTMLFormatter.
Returns:
* css: A string of styles as returned by Pygments' HTMLFormatter.
## pygments_markup_contents_html ##
Format a code fragment with Pygments
Prototype: `pygments_markup_contents_html(input, filetype, style) -> html`
Arguments:
* input: A string containing the code to format (either literal, or imported with get_raw()).
* filetype: A string describing which lexer to use.
* style (optional) A style identifier for Pygments' HTMLFormatter.

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# TODO #
* Pygments pretty printing of source code et al. including exposing that to the template API (`pygment_format(get_file_content('whatever.py'))`).
* Smart CSS things (fill in the processors)
* Project global defines, parameters.
# Maybe #
* pre- and post-scripts that will be run from __main__, either some shipped with pixywerk or project-level.
* Library of template modules? ATOM et al.

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@ -17,7 +17,7 @@ from typing import Dict, List, cast
from .processchain import ProcessorChains
from .processors.processors import PassthroughException
from .metadata import MetaTree
from .template_tools import file_list, file_name, file_content, file_metadata, time_iso8601, file_raw
from .template_tools import date_iso8601, file_list, file_name, file_content, file_metadata, time_iso8601, file_raw
from .pygments import pygments_get_css, pygments_markup_contents_html
logger = logging.getLogger()
@ -41,7 +41,8 @@ def get_args(args: List[str]) -> argparse.Namespace:
parser.add_argument("-d", "--dry-run", help="Perform a dry-run.", action="store_true")
parser.add_argument("-v", "--verbose", help="Output verbosely.", action="store_true")
parser.add_argument("--processors", help="Specify a path to a processor configuration file.", default=None)
# parser.add_argument("--prescript", help="Specify one or more prescripts to run (in order specified) with context of the compile.", default=[], action="append")
# parser.add_argument("--postscript", help="Specify one or more postsscripts to run (in order specified) with context of the compile.", default=[], action="append")
result = parser.parse_args(args)
# validate arguments
@ -93,6 +94,7 @@ def main() -> int:
"get_raw": file_raw(args.root, file_raw_cache),
"get_file_metadata": file_metadata(meta_tree),
"get_time_iso8601": time_iso8601("UTC"),
"get_date_iso8601": date_iso8601("UTC"),
"pygments_get_css": pygments_get_css,
"pygments_markup_contents_html": pygments_markup_contents_html,
}

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@ -22,7 +22,7 @@ class Jinja2(PassThrough):
iterable: The post-processed output stream
"""
ctx = cast(Dict, ctx)
template_env = Environment(loader=FileSystemLoader(ctx["templates"]))
template_env = Environment(loader=FileSystemLoader(ctx["templates"]), extensions=['jinja2.ext.do'])
template_env.globals.update(ctx["globals"])
template_env.filters.update(ctx["filters"])
tmpl = template_env.from_string("".join([x for x in input_file]))

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@ -52,7 +52,7 @@ class Jinja2PageEmbed(Processor):
iterable: The post-processed output stream
"""
ctx = cast(Dict, ctx)
template_env = Environment(loader=FileSystemLoader(ctx["templates"]))
template_env = Environment(loader=FileSystemLoader(ctx["templates"]), extensions=['jinja2.ext.do'])
template_env.globals.update(ctx["globals"])
template_env.filters.update(ctx["filters"])
tmpl = template_env.get_template(ctx["template"])

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@ -86,3 +86,11 @@ def time_iso8601(timezone: str) -> Callable:
return datetime.datetime.fromtimestamp(time_t, tz).isoformat("T")
return get_time_iso8601
def date_iso8601(timezone: str) -> Callable:
tz = pytz.timezone(timezone)
def get_date_iso8601(time_t: Union[int, float]) -> str:
return datetime.datetime.fromtimestamp(time_t, tz).strftime('%Y-%m-%d')
return get_date_iso8601