nx/scripts/documentation/schematics.ts

130 lines
3.9 KiB
TypeScript

import { parseJsonSchemaToOptions } from '@angular/cli/utilities/json-schema';
import { dedent } from 'tslint/lib/utils';
import { Schematic } from '@angular-devkit/schematics/collection-schema';
import { CoreSchemaRegistry } from '@angular-devkit/core/src/json/schema';
import {
htmlSelectorFormat,
pathFormat
} from '@angular-devkit/schematics/src/formats';
import { sortAlphabeticallyFunction } from './utils';
const fs = require('fs-extra');
const path = require('path');
/**
* @WhatItDoes: Generates default documentation from the schematics' schema.
* We need to construct an Array of objects containing all the information
* of the schematics and their associates schema info. It should be easily
* parsable in order to be used in a rendering process using template. This
* in order to generate a markdown file for each available schematic.
*/
const schematicsSourceDirectory = path.join(
__dirname,
'../../packages/schematics/src'
);
const schematicsOutputDirectory = path.join(
__dirname,
'../../docs/api-schematics'
);
const schematicCollectionFile = path.join(
schematicsSourceDirectory,
'collection.json'
);
fs.removeSync(schematicsOutputDirectory);
const schematicCollection = fs.readJsonSync(schematicCollectionFile).schematics;
const registry = new CoreSchemaRegistry();
registry.addFormat(pathFormat);
registry.addFormat(htmlSelectorFormat);
function generateSchematicList(
schematicCollection: Schematic,
registry: CoreSchemaRegistry
): Promise<Schematic>[] {
return Object.keys(schematicCollection).map(schematicName => {
const schematic = {
name: schematicName,
...schematicCollection[schematicName],
alias: schematicCollection[schematicName].hasOwnProperty('alias')
? schematicCollection[schematicName]['alias']
: null,
rawSchema: fs.readJsonSync(
path.join(
schematicsSourceDirectory,
schematicCollection[schematicName]['schema']
)
)
};
return parseJsonSchemaToOptions(registry, schematic.rawSchema)
.then(options => ({ ...schematic, options }))
.catch(error =>
console.error(
`Can't parse schema option of ${schematic.name}:\n${error}`
)
);
});
}
function generateTemplate(schematic): { name: string; template: string } {
let template = dedent`
# ${schematic.name} ${schematic.hidden ? '[hidden]' : ''}
${schematic.description}
## Usage
\`\`\`bash
ng generate ${schematic.name} ...
${schematic.alias ? `ng g ${schematic.name} ... # Same` : ''}
\`\`\`
\n`;
if (Array.isArray(schematic.options) && !!schematic.options.length) {
template += '## Options';
schematic.options
.sort((a, b) => sortAlphabeticallyFunction(a.name, b.name))
.forEach(
option =>
(template += dedent`
### ${option.name} ${option.required ? '(*__required__*)' : ''} ${
option.hidden ? '(__hidden__)' : ''
}
${
!!option.aliases.length
? `Alias(es): ${option.aliases.join(',')}\n`
: ''
}
${
option.default === undefined || option.default === ''
? ''
: `Default: \`${option.default}\`\n`
}
Type: \`${option.type}\` \n
${option.description}
`)
);
}
return { name: schematic.name, template };
}
function generateFile(
outputDirectory: string,
templateObject: { name: string; template: string }
): void {
fs.outputFileSync(
path.join(outputDirectory, `${templateObject.name}.md`),
templateObject.template
);
}
Promise.all(generateSchematicList(schematicCollection, registry))
.then(schematicList => schematicList.map(generateTemplate))
.then(markdownList =>
markdownList.forEach(template =>
generateFile(schematicsOutputDirectory, template)
)
);