X-Git-Url: https://git.r.bdr.sh/rbdr/blog/blobdiff_plain/cce07b52712ea6f3b8a9e8e5f4b072c4278bd023..c4b892b16fb92c7d89eaee0b1588c52c8836216b:/doc/specs/20200601-serving-different-versions.md?ds=sidebyside diff --git a/doc/specs/20200601-serving-different-versions.md b/doc/specs/20200601-serving-different-versions.md index 351cc8c..9eb1bd8 100644 --- a/doc/specs/20200601-serving-different-versions.md +++ b/doc/specs/20200601-serving-different-versions.md @@ -73,8 +73,9 @@ Given I add a new entry to the blog, the entries will be updated. # Solution Proposal -(Note: This solution is incomplete. We need to add guid and pubDate -generation, as this is required for the RSS to be usable) +We will add a new step in the creation process to create metadata for the +post that will allow each post to be uniquely identified, as well as +having a publish date related to them. We will split the current generator function into generators, and create a new generator that will generate an RSS 2.0 file @@ -82,30 +83,56 @@ a new generator that will generate an RSS 2.0 file # Blackbox ``` - ┌─────────────────┐ ┌───────────────┐ - │ │ │ │ - ┌─────▶│ StaticGenerator │──────────▶│ Static Assets │ - │ │ │ │ │ - │ └─────────────────┘ └───────────────┘ -┌───────┐ │ ┌───────────────┐ ┌───────────┐ -│ │ │ │ │ │ │ -│ Blog │──────┼─────▶│ HTMLGenerator │────────────▶│ HTML File │ -│ │ │ │ │ │ │ -└───────┘ │ └───────────────┘ └───────────┘ - │ ┌──────────────┐ ┌──────────┐ - │ │ │ │ │ - └─────▶│ RSSGenerator │─────────────▶│ RSS File │ - │ │ │ │ - └──────────────┘ └──────────┘ + ╔══════════════════════╗ + ║ When Adding a Post ║ + ╚══════════════════════╝ + ┌───────────────┐ ┌───────────────┐ + │ │ │ │ + ┌────────────────▶│ writeMetadata │─────────▶│ Metadata File │ + │ │ │ │ │ + │ └───────────────┘ └───────────────┘ + │ + │ + │ ╔════════════════════════╗ + │ ║ When Generating Output ║ + │ ╚════════════════════════╝ + │ ┌─────────────────┐ ┌───────────────┐ + │ │ │ │ │ + │ ┌─────▶│ StaticGenerator │───────▶│ Static Assets │ + │ │ │ │ │ │ + │ │ └─────────────────┘ └───────────────┘ +┌───────┐ │ ┌───────────────┐ ┌───────────┐ +│ │ │ │ │ │ │ +│ Blog │──────┼─────▶│ HTMLGenerator │─────────▶│ HTML File │ +│ │ │ │ │ │ │ +└───────┘ │ └───────────────┘ └───────────┘ + │ ┌──────────────┐ ┌──────────┐ + │ │ │ │ │ + └─────▶│ RSSGenerator │──────────▶│ RSS File │ + │ │ │ │ + └──────────────┘ └──────────┘ ``` # Theory of Operation -When the generate function of the blog is triggered, it will iterate over -a list of generator functions and call them with the source and target -directories, and an array containing the parsed markdown from the post. -Each generator function will do its work, throwing an exception if they -encounter an error. +## When Adding a Post + +When the add function of the blog is triggered, it will shift the posts +as it currently does and then will generate a new unique ID and take the +current timestamp. This will be saved in a JSON file in the output +directory called "metadata.json" + +## When Generating Output + +When the generate function of the blog is triggered, it will iterate +over every post. For each of them it will parse the markdown content, +and the metadata, creating an object of type `tPost` and pushing it +to an array. + +Next, it will iterate from a list of generator functions and call them +with the source and target directories, and an array containing the `tPost` +objects. Each generator function will do its work, throwing an exception +if they encounter an error. When the static generator is called, it will remove the current assets directory in the target directory, and recursively copy the assets from @@ -121,6 +148,22 @@ directory. # Technical Specification +## The Post Data Structure + +This spec introduces a data structure to help generate output. + +``` +tPost + +html // The markup of the post + +publishedOn // The timestamp when this post was added + +id // The Unique ID for this post +``` + +Given that posts won't come in at a high enough rate, and that the +purpouse is only to help feed readers identify each unique piece of +content, for this version the `id` will be the same number as the +`publishedOn`. + ## The Generator Interface Every generator must implement this interface in order to work with