102 lines
2.7 KiB
JavaScript
Executable file
102 lines
2.7 KiB
JavaScript
Executable file
#!/usr/bin/env node
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const { parseSchema } = require('json-schema-to-zod')
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const { schema } = require('../config.schema.json')
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const { format } = require('prettier')
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const { join, basename } = require('path')
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const prettierConfig = require('../prettier.config')
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const { writeFileSync, readFileSync } = require('fs')
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const file = join(__dirname, '../src/generated/config_boundary.ts')
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console.log(`Starting code generation for ${file}`)
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const zodSchema = parseSchema(schema, false)
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const code = format(
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`
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// Auto-generated by "${join(basename(__dirname), basename(__filename))}", don’t manually edit
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import { z } from 'zod'
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export const ConfigBoundary = ${zodSchema}
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`,
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{ filepath: 'codegen.ts', ...prettierConfig },
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)
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writeFileSync(file, code)
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const note = 'AUTOGENERATED CONFIG DOCS'
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const comment = (...strings) => `<!-- ${strings.join(' ')} -->`
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const readmePath = join(__dirname, '../README.md')
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const readme = readFileSync(readmePath).toString()
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const regex = new RegExp(`${comment(note, 'BEGIN')}.*${comment(note, 'END')}`, 'mgs')
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if (!readme.match(regex)) {
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console.log('Could not update README.md')
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process.exit(1)
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}
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writeFileSync(
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readmePath,
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readme.replace(
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regex,
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`${comment(note, 'BEGIN')}\n\`\`\`json5\n${generateDocs(schema)}\n\`\`\`\n${comment(note, 'END')}`,
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),
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)
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function generateDocs(schema) {
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const doc = indent(
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Object.entries(schema.properties)
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.map(([property, definition]) => {
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const lines = []
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if (definition.title) {
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lines.push(`// ${definition.title}`)
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}
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if (definition.description) {
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lines.push(`//\n// ${wordwrap(definition.description, 80, '\n// ')}`)
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}
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if (definition.default !== undefined) {
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lines.push(`//\n// Default: ${JSON.stringify(definition.default)}`)
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}
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lines.push(`${JSON.stringify(property)}: ${JSON.stringify('<' + definition.type + '>')}`)
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return lines.join('\n')
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})
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.join(',\n\n\n'),
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6,
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)
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return `{
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// ...
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"platforms": [
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{
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"platform": "PrometheusExporter",
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${doc}
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}
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]
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}`
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}
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function wordwrap(word, length, wrap = '\n') {
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const wrapped = []
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while (word.length > length) {
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const cut = word.substring(0, length)
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const pos = cut.lastIndexOf(' ')
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wrapped.push(cut.substring(0, pos))
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word = word.substring(pos + 1)
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}
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wrapped.push(word)
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return wrapped.join(wrap)
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}
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function indent(string, indent) {
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return string.replace(/^(.+)$/gm, `${' '.repeat(indent)}$1`)
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}
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console.log(`Finished code generation for ${file}`)
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