md-curcuma
v1.2.15
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A Typescript library for transporting and converting markdown and csv data.
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MD-Curcuma
The Data-Wrangler. Copys and transforms Markdown and CSV files from your Obsidian-Vault for usage in Hugo.
- This thing ist done with Typescript.
- Inspired by: https://github.com/accraze/split-md
- Why not golang? So you can use it easier outside the golang unsiverse.
Availible Transporter:
- MD_Transporter - for Markdown Files
- CSV_Transporter - For files with comma-separated values, where each line is a record. This is a BookBuddy App support: CSV-File conversion & Image Download.
Availible Markdown Transformers:
- Copying and transforming one or more Markdown files.
- Split longform documents into several individual documents.
- Obsidian-Links (Images and Documents), copy Files on the fly.
- Latex-Formulas, Paragraph and Inline.
- Frontmatter: Add, Replace, Map and Transform Values.
- Callouts.
- Remove Todos.
- TODO: Take wikilinks (cross-references) into account. Footnotes Endnotes support.
Availible Mappings:
- Adopt Value - a simple pass through example.
- ArrayJoin, ArraySplit
- Boolean Inverse
- Image Downloader
- Insert Date (now)
- Insert UUID
- Trim Characters from String.
You can build customized transformers and Mappers for different solutions. For planned features and changes take a look into the CHANGELOG.md
Restrictions
- It only runs in Backend, not in Browsers.
How it works
In short:
const my_transporter: MD_Transporter = new MD_Transporter();
my_transporter.perform_job_from("../test-data-obsidian-vault/transport-config.json", "Example-Job No.1");
All tasks are defined in the transport-config.json
configuration file.
In long:
const my_transporter: MD_Transporter = new MD_Transporter();
// Basic config
const transporter_parameter: MD_Transport_Parameter_Type = {
readPath: "test-obsidian-vault/longform.md",
writePath: "test-hugo/hugo-content-2/",
doSubfolders: false,
limit: 1990,
useCounter: false
};
// Transformer config
const parameter_images: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "![[",
tag_obsidian_suffix: "]]",
find_rule: "jpg|png",
replace_template: `{{< image src="assets/images/{name_full}" >}}`,
copy_task: {
source:"test-obsidian-vault/images/",
target:"test-hugo/hugo-content-2/assets/images/{name}/",
simulate:false
}
};
// Add the Transformer to the pipeline
my_transporter.addTransformer(new MD_ObsidianLink_Transformer(parameter_images));
// execute the job
my_transporter.perform_job(transporter_parameter);
Take a look in the test
folder for running examples.
Transformations
I already have a number of transformations on offer, but if you need your own, you can and add them to the pipeline.
1. Split a Longform-Markdown File
The Problem:
- I have a long Markdown document that was compiled with the Obsidian Longform plugin.
- I would like to make this available on my website.
- The website is built with Hugo.
- For this purpose, the longform document is to be split into several individual documents.
- The splitting should be done on headings: e.g.:
#
- The text of the heading is used as the filename
- If necessary, with a number in front, if necessary replace special characters url conform
- The splitting should be done on headings: e.g.:
- Be Hugo compatible.
- The individual documents should be equipped with frontmatter.
- autogenerate uuids
- Certain content may need to be transformed.
Code-Example 4
var splitter_frontmatter: MD_Frontmatter = new MD_Frontmatter(`---
title: "{title}"
description: ""
url: /docs/{url_prefix}-{url}/
date: {date}
draft: false
images: []
menu:
docs:
parent: "docs-9602b15bad02600f3883f55e2ade6b81"
identifier: "{url_prefix}-{url}-{uuid}"
weight: {weight}
toc: true
---\n\n`);
const parameter_splitter: MD_Splitter_Parameter_Type = {
pattern: "# ",
cleanName: "# ",
limit: 100,
hasCounter: false,
weightBase: 8000,
url_prefix: "test-prefix",
doRemoveHeadline: true,
frontmatter_filename: "", // ./test/frontmatter-template.md
frontmatter: splitter_frontmatter
};
my_transporter.addTransformer(new MD_Splitter_Transformer(parameter_splitter));
Example JSON for usage in config-file 1
{
"transformer_class_name": "MD_Splitter_Transformer",
"transformer_parameter": {
"pattern": "# ",
"cleanName": "# ",
"limit": 100,
"hasCounter": false,
"weightBase": 8000,
"url_prefix": "test-prefix",
"doRemoveHeadline": true,
"frontmatter_filename": "./test-data-obsidian-vault/frontmatter-template.md",
"frontmatter": {}
}
2. Obsidian-Links
Images from
![[my-image.jpg]]
Hugo replacement:
{{<image folder="images/my-image.jpg" >}}
or Dokuments from
![[docu-1.pdf]]
Hugo replacement:
{{< button href="/getthis.php?id=docu-1" name="download docu-1 (pdf)" >}}
Code-Example 5
const parameter_images: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "![[",
tag_obsidian_suffix: "]]",
find_rule: "jpg|png",
replace_template: `{{< image src="assets/images//{name}/{name_full}" >}}`,
copy_task: {
source:"test-data-obsidian-vault/images/",
target:"test-data-hugo/hugo-content-2/assets/images/{name}/",
simulate:simulate_copy_job
}
};
const parameter_docs: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "![[",
tag_obsidian_suffix: "]]",
find_rule: "pdf|ods|odp",
replace_template: `{{< button href="/getthis.php?id={name}" name="download {name} ({name_suffix})" >}}`,
copy_task: {
source:"test-data-obsidian-vault/attachments/",
target:"test-data-hugo/hugo-content-2/static/downloads/",
simulate:simulate_copy_job
}
};
my_transporter.addTransformer(new MD_ObsidianLink_Transformer(parameter_images));
my_transporter.addTransformer(new MD_ObsidianLink_Transformer(parameter_docs));
Example JSON for usage in config-file 2
{
"transformer_class_name": "MD_ObsidianLink_Transformer",
"transformer_parameter": {
"tag_obsidian_prefix": "![[",
"tag_obsidian_suffix": "]]",
"find_rule": "jpg|png",
"replace_template": "{{< lightbox-docs id=\"0\" folder=\"images/{name}/*\" showImageNr=0 >}}",
"copy_task":{
"source":"test-data-obsidian-vault/images/",
"target":"test-data-hugo/hugo-content-1/assets/images/{name}/",
"simulate":false
}
}
},
{
"transformer_class_name": "MD_ObsidianLink_Transformer",
"transformer_parameter": {
"tag_obsidian_prefix": "![[",
"tag_obsidian_suffix": "]]",
"find_rule": "pdf|ods|odp",
"replace_template": "{{< button href=\"/getthis.php?id={name}\" name=\"download {name} ({name_suffix})\" >}}",
"copy_task":{
"source":"test-data-obsidian-vault/attachments/",
"target":"test-data-hugo/hugo-content-1/static/downloads/",
"simulate":false
}
}
},
Copy images and documents on the fly
A simulation mode provides information about which images and attachments it expects and where.
3. Latex Formulas
Transform Latex Formulas from Obsidian-Style to Hugo-Style.
- https://www.makeuseof.com/write-mathematical-notation-obsidian/
- https://getdoks.org/docs/built-ins/math/
from this:
$$
W_{kin} = \frac { m \cdot v^2}{2} = \frac {p^2}{ 2 \cdot m}
$$
This is an inline ${(x+y)}^2$ Formula.
to this:
```math {.text-center}
$$
W_{kin} = \frac { m \cdot v^2}{2} = \frac {p^2}{ 2 \cdot m}
$$
```
This is an inline {{< math >}} ${(x+y)}^2$ {{< /math >}} Formlula.
Code-Example 6
var parameter_math_paragraph: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "$$",
tag_obsidian_suffix: "$$",
find_rule: "",
replace_template: "```math {.text-center}\n$$\n {content} \n$$\n```\n",
};
var parameter_math_inline: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "$",
tag_obsidian_suffix: "$",
find_rule: "",
replace_template: "{{< math >}} ${content}$ {{< /math >}}",
};
my_transporter.addTransformer(new MD_MathParagraph_Transformer(parameter_math_paragraph));
my_transporter.addTransformer(new MD_MathInline_Transformer(parameter_math_inline));
Example JSON for usage in config-file 3
{
"transformer_class_name": "MD_MathParagraph_Transformer",
"transformer_parameter": {
"tag_obsidian_prefix": "$$",
"tag_obsidian_suffix": "$$",
"find_rule": "",
"replace_template": "```math {.text-center}\n$$\n {content} \n$$\n```\n"
}
},
{
"transformer_class_name": "MD_MathInline_Transformer",
"transformer_parameter": {
"tag_obsidian_prefix": "$",
"tag_obsidian_suffix": "$",
"find_rule": "",
"replace_template": "{{< math >}} ${content}$ {{< /math >}}"
}
},
4. Frontmatter: Add, Replace, Map and Transform Values
What happens here?
Adds a frontmatter to a single file (or a batch of single files).
- The frontmatter from the source file is removed.
- The new frontmatter-template is inserted instead.
- Take some frontmatter fields from the source file,
- and write them to another field in the target file.
- The value can be converted on the way.
It's not quite finished yet.
Code-Example 1
var document_frontmatter: MD_Frontmatter_Template =
new MD_Frontmatter_Template(`---
title: ""
description: ""
summary: ""
date:
draft:
weight:
categories: []
tags: []
contributors: []
pinned: false
homepage: false
seo:
title: ""
description: ""
canonical: ""
noindex: false
---\n\n`);
// use one of the predefined tasks like so:
// task: new MD_Mapping_BooleanInverse_Task()
// or write a custom task:
const map_1: MD_Mapping = {
mapping_items: [{
source_property_name: "doPublish",
target_poperty_name: "draft",
}],
task: {
perform: function (mapping_properties: MD_MappingTask_Properties): boolean {
let target_value = !mapping_properties.source_value;
return target_value;
},
},
};
// An example task that inserts the current date. Source Property isnt used here.
const map_2: MD_Mapping = {
mapping_items: [{
source_property_name: "",
target_poperty_name: "date",
}],
task: {
perform: function (mapping_properties: MD_MappingTask_Properties): any {
return new Date().toJSON().slice(0, 16);
},
},
};
const parameter_frontmatter: MD_Frontmatter_Parameter_Type = {
frontmatter: document_frontmatter,
frontmatter_filename: "",
mappings: [map_1, map_2],
};
my_transporter.addTransformer(new MD_Frontmatter_Transformer(parameter_frontmatter));
Example JSON for usage in config-file 4
{
"transformer_class_name": "MD_Frontmatter_Transformer",
"transformer_parameter": {
"frontmatter_filename": "./test-data-obsidian-vault/frontmatter-template.md",
"frontmatter": {}
}
},
5. Callouts
Transform Obsidian-Callouts to Hugo-Callout-Shortcodes.
- Obsidian Callouts https://help.obsidian.md/Editing+and+formatting/Callouts
- Hugo Callouts https://getdoks.org/docs/basics/shortcodes/
I'm not quite finished here either.
from
> [!info] Custom Title
> Here's a callout block.
> It supports **Markdown**, [[Internal link|Wikilinks]], and [[Embed files|embeds]]!
> ![[Engelbart.jpg]]
- note
- abstract(summary, tldr)
- info
- todo
- tip (hint, important)
- success(check, done)
- question (help, faq)
- warning (caution, attention)
- failure (fail, missing)
- danger (error)
- bug
- example
- quote (cite)
to
{{ < callout context="tip" title="Custom Title" icon="rocket" > }}
Here's a callout block.
{{ < /callout > }}
- context="tip" title="Tip" icon="rocket"
- context="note" title="Note" icon="info-circle"
- context="caution" title="Caution" icon="alert-triangle"
- context="danger" title="Danger" icon="alert-octagon"
Code-Example 2
var parameter_callouts: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "> [!",
tag_obsidian_suffix: "]",
find_rule: "",
replace_template: `{{< callout context="{context}" title="{title}" icon="{icon}" > }} {content} {{< /callout >}}`,
};
my_transporter.addTransformer(new MD_Callout_Transformer(parameter_callouts));
Example JSON for usage in config-file 5
{
"transformer_class_name": "MD_Callout_Transformer",
"transformer_parameter": {
"tag_obsidian_prefix": "> [!",
"tag_obsidian_suffix": "]",
"find_rule": "",
"replace_template": "{{< callout context=\"{context}\" title=\"{title}\" icon=\"{icon}\" > }} {content} {{< /callout >}}"
}
},
6. Remove TODOs
Remove for example the following Paragraphes:
- [ ] #TODO Some serious stuff to do...
Code-Example 3
const parameter_remove: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "",
tag_obsidian_suffix: "",
find_rule: "- [ ] #TODO ",
replace_template: ``,
};
my_transporter.addTransformer(new MD_RemoveTODOS_Transformer(parameter_remove));
Example JSON for usage in config-file 6
{
"transformer_class_name": "MD_RemoveTODOS_Transformer",
"transformer_parameter": {
"find_rule": "- [ ] #TODO ",
"replace_template": ""
}
},
7. Wikilinks / Cross-References
This isnt done yet.
8. Footnotes Endnotes support
Works for footnotes inside the splitted chapter, but not yet if they are outside.
9. BookBuddy-App, CSV Support
- The BookBuddy App exports its contents as a csv file.
- I would like to use the data in Hugo.
- To do this, I convert the csv to json and download the also exported images from URL.
- The Property
Cover_Image
saves the local Path to the Image for Hugo.
let image_download_mapping_props: MD_ImageDownloader_MappingType = {
image_target_folder: "test-data-hugo/hugo-content-4/assets/images/",
image_hugo_path: "images/",
filename_property_name: "UUID", // not used by now
simulate: false
};
const image_download_mapping: MD_Mapping = {
mapping_items: [{
source_property_name: "Uploaded_Image_URL",
target_poperty_name: "Cover_Image",
}],
task: new MD_ImageDownloader_Mapping(image_download_mapping_props),
};
const csv_transporter_parameter: CSV_Transporter_Parameter_Type = {
readPath: "test-data-obsidian-vault/attachments/bookbuddy-export.csv",
writePath: "test-data-hugo/hugo-content-4/data/bookbuddy-export.json",
csvSeparator: ',',
mappings: [image_download_mapping],
};
CSV_Transporter.transform_to_json(csv_transporter_parameter);
Mappings
Adopt Value - a simple pass through example
ArrayJoin, ArraySplit
Boolean Inverse
Image Downloader
Insert Date (now)
Insert UUID
Trim Characters from String
Build a Custom Mapper
For fast prototyping, it can be useful to set up a mapper in this way:
const map_1: MD_Mapping = {
mapping_items: [
{
source_property_name: "spn_test", // read from
target_poperty_name: "tpn_test", // write to
}
],
task: {
perform: function (mapping_properties: MD_MappingTask_Properties): boolean {
// The values are also made available to you,
// so that you no longer have to read them from the properties:
let sv:boolean = mapping_properties.source_value; // type any
let tv:boolean = mapping_properties.target_value; // type any
// in normal cases you would work with these given values
// and return the target_value at the end.
// you also have access to the source Object, and the Target Object.
// possibly source and target are the same.
let the_souce:any = mapping_properties.source;
let the_target:any = mapping_properties.target;
// and you have access to the names of the preoccessed Properties:
// possibly they are the same.
let spn:string = mapping_properties.source_property_name;
let tpn:string = mapping_properties.target_poperty_name;
// do your transformations and mappings
// and return the target_value (which is assigned automattically)
return !sv;
},
}
};
In other cases it my be better to build a real class because you can pass additional parameters. For example take a look at MD_ArraySplit_Mapping
Install and Use
Where to use?
The Transport-Scripts can be used...
- in the Hugo-Project - and pull from Obsidian Vault.
- in Obsidian - and push to your Hugo project. I will write an Obsidian-Plugin for that in near future.
- as stand allone project between Obsidian and Hugo - so it does pulling and pushig.
I recommend Option 3
at the moment.
Install it
Install-Method 1: Clone the Repository
The easiest way is to clone the repository. You will then also receive the tests, giving you a good starting point for your own adjustments.
- copy the link: https://gitlab.com/glimpse-of-life/md-curcuma.git
- open VS Code
- Click on
Clone Git repository
. - Select a directory to clone the target to.
- The directory
md-curcuma
will be created. - Open the project in VS-Code
- Open Teriminal
npm install
npm run build:ts
npm run test
Install-Method 2: create new Project
Another option is to create an empty project, an install from npm...
- create a
project-folder
- open that folder, and in it...
npm init
# follow the guide
npm install md-curcuma
# check typescript installation
tsc --version
create a tsconfig.json
If you use it inside your Hugo Project, some folders are excluded per default.
{
"compilerOptions": {
"module": "commonjs",
"target": "ES5",
"noImplicitAny": true,
"removeComments": true,
"preserveConstEnums": true,
"sourceMap": false,
"baseUrl": "./",
"rootDir":"transport-scripts",
"outDir": "transport-scripts-compiled"
},
"include": ["transport-scripts/**/*"],
"exclude": [
"assets",
"config",
"content",
"data",
"layouts",
"node_modules",
"resources",
"static",
"transport-scripts-compiled"
]
}
update from npm
# check for updates
npx npm-check-updates
# upgrade package.json
npx npm-check-updates -u
# or
npx npm-check-updates -u --interactive --format group
# install the new Versions
npm update --save
# or
npm update --save-dev
# and then
npm install
Create your Skript
Look in the test
folder for running examples.
Create two folders for your scripts:
transport-scripts
- holds the typescript source-codetransport-scripts-compiled
The first is for the Typescript source-code, the second is for the Java script that will later be compiled from it.
Compile to javascript
To simplify handling, include the following build commands in the package.json
:
The ts suffix in build:ts
separates it from the golag scripts which i name build:go
, but of course you can call them whatever you like.
"build:ts": "rm -rf transport-scripts-compiled && tsc",
"watch:ts": "tsc --watch",
Create The Example Markdown-Files
- create folder
test
, and in folder test- create folder
test/obsidian-fault/
- an put your longform.md in it. - create folder
test/hugo-content/
- this is the target directory
- create folder
Create a Transport-Script
In folder transport-scripts
create the file split-my-longform.ts
and paste the code:
const my_transporter: MD_Transporter = new MD_Transporter();
my_transporter.perform_job_from("../test-data/transport-config.json", "Example-Job No.1");
That is all was needed when you provide a config file and a frontmatter file.
You can do it the other - the long - way:
import {
MD_Frontmatter_Template,
MD_ObsidianLink_Transformer,
MD_RemoveTODOS_Transformer,
MD_Math_Transformer,
MD_Splitter_Parameter_Type,
MD_Transformer_Parameter_Type,
} from "md-curcuma";
import {
MD_Transporter,
MD_transporter_Parameter_Type,
} from "md-curcuma";
const my_transporter: MD_Transporter = new MD_Transporter();
// Basic instructions for MD_Transporter
const transporter_parameter: MD_Transporter_Parameter_Type = {
readPath: "test/obsidian-vault/longform.md",
writePath: "test/hugo-content-2/",
doSubfolders: false,
limit: 1990,
useCounter: false
};
const simulate_copy_job = true;
// The tasks to operate. If you add no tasks you have a simple copy job.
// Placeholders in the Transformer-Template
// as pre defined in MD_Transformer_TemplateValues_Type in the md-transformer module:
// {name_full} {name_suffix} {name}
const parameter_images: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "![[",
tag_obsidian_suffix: "]]",
find_rule: "jpg|png",
replace_template: `{{< image src="assets/images/{name_full}" >}}`,
copy_task: {
source:"test/obsidian-vault/images/",
target:"test/hugo-content-2/assets/images/{name}/",
simulate:simulate_copy_job
}
};
const parameter_docs: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "![[",
tag_obsidian_suffix: "]]",
find_rule: "pdf|ods|odp",
replace_template: `{{< button href="/getthis.php?id={name}" name="download {name} ({name_suffix})" >}}`,
copy_task: {
source:"test/obsidian-vault/attachments/",
target:"test/hugo-content-2/static/downloads/",
simulate:simulate_copy_job
}
};
var parameter_math: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "$$",
tag_obsidian_suffix: "$$",
find_rule: "",
replace_template: "```math {.text-center}\n$$\n {content} \n$$\n```\n",
};
const parameter_remove: MD_Transformer_Parameter_Type = {
tag_obsidian_prefix: "", // TODO optional?
tag_obsidian_suffix: "", // TODO optional?
find_rule: "- [ ] #TODO ",
replace_template: ``,
};
// The Markdown-Splitter Task needs a Frontmatter
// The placeholders result from the definition of MD_Frontmatter_Type in md-frontmatter
// A file definition in frontmatter_filename, overwrites frontmatter Property
var splitter_frontmatter: MD_Frontmatter = new MD_Frontmatter(`---
title: "{title}"
description: ""
url: /docs/{url_prefix}-{url}/
date: {date}
draft: false
images: []
menu:
docs:
parent: "docs-9602b15bad02600f3883f55e2ade6b81"
identifier: "{url_prefix}-{url}-{uuid}"
weight: {weight}
toc: true
---\n\n`);
const parameter_splitter: MD_Splitter_Parameter_Type = {
pattern: "# ",
cleanName: "# ",
limit: 100,
hasCounter: false,
weightBase: 8000,
url_prefix: "test-prefix",
doRemoveHeadline: true,
frontmatter_filename: "", // ./test/frontmatter-template.md
frontmatter: splitter_frontmatter
};
my_transporter.addTransformer(new MD_ObsidianLink_Transformer(parameter_images));
my_transporter.addTransformer(new MD_ObsidianLink_Transformer(parameter_docs));
my_transporter.addTransformer(new MD_RemoveTODOS_Transformer(parameter_remove));
my_transporter.addTransformer(new MD_Math_Transformer(parameter_math));
my_transporter.addTransformer(new MD_Splitter_Transformer(parameter_splitter));
my_transporter.perform_job(transporter_parameter);
Compile The Transport-Script
The scripts can then be used as follows. In the terminal:
npm run build:ts
- build the library.npm run watch:ts
- watch and compile on change to javascript.
The compiled files end up in the transport-scripts-compiled
directory.
Run the Script in VSCode
- In Visual Studio Code
- Go to the directory
transport-scripts-compiled
- On the compiled
.js
file - Mouse right klick -> Menu-Entry
Run Code
Look in the test
folder to check the result.
Observe the console output on the Output tab.
Build A Custom Transformer
import { MD_Tranporter_Parameter_Type } from "md-curcuma";
import { MD_Transformer_AbstractBase } from "md-curcuma";
interface MD_Custom_Parameter_Type {
custom_property: string;
}
class MD_Custom_Transformer extends MD_Transformer_AbstractBase {
private parameter: MD_Custom_Parameter_Type;
constructor(parameter: MD_Custom_Parameter_Type ){
super();
this.parameter = parameter;
}
public set_job_parameter(job_paramter: MD_Transporter_Parameter_Type): void {
super.set_job_parameter(job_paramter); // this is a hack
}
public transform(file_content: MD_FileContent_Interface, index: number): MD_FileContent_Interface {
const body_array = file_content.body_array;
let item = file_content.body_array[index];
// file_content.frontmatter;
// file_content.frontmatter_attributes;
if (body_array[index].indexOf(this.parameter.find_rule) >= 0) {
console.log(`Transform before: ${body_array[index]}`);
body_array.splice(index, 1);
file_content.index = file_content.index - 1;
console.log(`Transform after: ${body_array[index]}`);
}
return file_content;
}
}
You currently cannot call custom Transformer from a configuration file, you have to instantiate it in your script.
You can mixup execution from config-file and adding your custom Transformer class like so:
const my_transporter: MD_Transporter = new MD_Transporter();
my_transporter.addTransformer(new MyCustomTransformer(custom_params));
my_transporter.perform_job_from("../test-data/transport-config.json", "Example-Job No.1");