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blog/scripts/create-icons/index.ts

129 lines
3.7 KiB
TypeScript

//
// Generate Astro components from SVG files.
// adapted from https://github.com/astro-community/icons
//
import fs from 'node:fs/promises'
import ps from 'node:path/posix'
import ora from 'ora'
import chalk from 'chalk'
import { toInnerSvg } from './svg.ts'
import { toAstroComponent } from './toAstroComponent.ts'
import { toReactComponent } from './toReactComponent.ts'
// Current directory.
const currentDir = ps.resolve('.')
// // Source directories
const srcDirs = [
ps.resolve(currentDir, 'node_modules/feather-icons/dist/icons'),
ps.resolve(currentDir, 'src/images')
]
// Distribution directory.
const distDir = ps.resolve(currentDir, 'src/images/components')
// Data related to each icon exported by this package.
const icons = []
export async function generateIcons(distDir: string) {
const spinner = ora(
`${chalk.bold('[create-icons]')} Create icon components`
).start()
// clean the distribution directory
await fs.rm(distDir, { force: true, recursive: true })
await fs.mkdir(distDir, { recursive: true })
await fs.mkdir(`${distDir}/react`, { recursive: true })
// copy the attribute typings file
await fs.copyFile(
ps.resolve(currentDir, 'scripts/create-icons/Props.d.ts'),
ps.resolve(distDir, 'Props.d.ts')
)
await fs.copyFile(
ps.resolve(currentDir, 'scripts/create-icons/Props.d.ts'),
ps.resolve(`${distDir}/react`, 'Props.d.ts')
)
// convert the SVG files into Astro & React components
let contentOfIndexJS = '// @ts-nocheck\n'
let contentOfIndexReactJS = '// @ts-nocheck\n'
for (const src of srcDirs) {
for (let filepath of await fs.readdir(src, { encoding: 'utf8' })) {
// ignore non-svg files
if (!filepath.endsWith('.svg')) continue
// Base name of the SVG.
const name = filepath.replace(/\.svg$/, '')
// get filepath as a full path
filepath = ps.resolve(src, filepath)
// Inner contents of the SVG file.
const innerSVG = toInnerSvg(await fs.readFile(filepath, 'utf8'))
// Formatted title.
const title = name
.replace(
// uppercase alphabetic characters after the start or a dash
/(?<=^|-)([a-z])/g,
(_0, $1) => $1.toUpperCase()
)
.replace(
// replace non-alphanumeric characters with space
/[^A-Za-z0-9]+/g,
' '
)
.replace(
// respect 'GitHub' brand casing
'Github Logo',
'GitHub Logo'
)
// Base name, which is the formatted title without spaces (PascalCase)
const baseName = title.replace(/ /g, '')
// write the astro component to a file
await fs.writeFile(
ps.resolve(distDir, `${baseName}.astro`),
toAstroComponent(innerSVG, title),
'utf8'
)
// write the react component to a file
await fs.writeFile(
ps.resolve(`${distDir}/react`, `${baseName}.tsx`),
toReactComponent(innerSVG, title),
'utf8'
)
// add the astro component export to the main entry `index.ts` file
contentOfIndexJS += `\nexport { default as ${baseName} } from './${baseName}.astro'`
// add the react component export to the main entry `react/index.ts` file
contentOfIndexReactJS += `\nexport { Icon as ${baseName} } from './${baseName}.tsx'`
icons.push({ name, baseName, title })
}
}
// write the main Astro entry `index.ts` file
await fs.writeFile(ps.resolve(distDir, 'index.ts'), contentOfIndexJS, 'utf8')
// write the main React entry `react/index.ts` file
await fs.writeFile(
ps.resolve(`${distDir}/react`, 'index.ts'),
contentOfIndexReactJS,
'utf8'
)
spinner.succeed(
`${chalk.bold('[create-icons]')} Generated ${
icons.length
} icons into @images/components.`
)
}
generateIcons(distDir)