Updates!

Some documentation expansion.
Add {do} support to jinja systems

READMES/Patterns.md

@@ -0,0 +1,5 @@
+# Patterns for Site Design #
+
+These are some simple patterns for things commonly needed in websites of various kinds.
+
+##

READMES/TemplateFunctions.md

@@ -0,0 +1,113 @@
+# 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.

TODO.md

@@ -1,9 +1,6 @@
 # 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.
-
+* pre- and post-scripts that will be run from __main__, either some shipped with pixywerk or project-level.
-# Maybe #
-
 * Library of template modules? ATOM et al.

pixywerk2/__main__.py

@@ -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,
     }

pixywerk2/processors/jinja2.py

@@ -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]))

pixywerk2/processors/jinja2_page_embed.py

@@ -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"])

pixywerk2/template_tools.py

@@ -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