The DocTree package provides functionality for managing collections of markdown pages and files. It uses Redis to store metadata about the collections, pages, and files.

Features

Organize markdown pages and files into collections
Retrieve markdown pages and convert them to HTML
Include content from other pages using a simple include directive
Cross-collection includes
File URL generation for static file serving
Path management for pages and files

Usage

Creating a DocTree

import "git.threefold.info/herocode/heroagent/pkg/doctree"

// Create a new DocTree with a path and name
dt, err := doctree.New("/path/to/collection", "My Collection")
if err != nil {
    log.Fatalf("Failed to create DocTree: %v", err)
}

Getting Collection Information

// Get information about the collection
info := dt.Info()
fmt.Printf("Collection Name: %s\n", info["name"])
fmt.Printf("Collection Path: %s\n", info["path"])

Working with Pages

// Get a page by name
content, err := dt.PageGet("page-name")
if err != nil {
    log.Fatalf("Failed to get page: %v", err)
}
fmt.Println(content)

// Get a page as HTML
html, err := dt.PageGetHtml("page-name")
if err != nil {
    log.Fatalf("Failed to get page as HTML: %v", err)
}
fmt.Println(html)

// Get the path of a page
path, err := dt.PageGetPath("page-name")
if err != nil {
    log.Fatalf("Failed to get page path: %v", err)
}
fmt.Printf("Page path: %s\n", path)

Working with Files

// Get the URL for a file
url, err := dt.FileGetUrl("image.png")
if err != nil {
    log.Fatalf("Failed to get file URL: %v", err)
}
fmt.Printf("File URL: %s\n", url)

Rescanning a Collection

// Rescan the collection to update Redis metadata
err = dt.Scan()
if err != nil {
    log.Fatalf("Failed to rescan collection: %v", err)
}

Include Directive

You can include content from other pages using the include directive:

# My Page

This is my page content.

!!include name:'other-page'

This will include the content of 'other-page' at that location.

You can also include content from other collections:

# My Page

This is my page content.

!!include name:'other-collection:other-page'

Implementation Details

All page and file names are "namefixed" (lowercase, non-ASCII characters removed, special characters replaced with underscores)
Metadata is stored in Redis using hsets with the key format collections:$name
Each hkey in the hset is a namefixed filename, and the value is the relative path in the collection
The package uses a global Redis client to store metadata, rather than starting its own Redis server

Example

See the example for a complete demonstration of how to use the DocTree package.