addTailwindConfigContent() — ui Function Reference

Source Code

packages/shadcn/src/utils/updaters/update-tailwind-content.ts lines 75–121

async function addTailwindConfigContent(
  configObject: ObjectLiteralExpression,
  content: string[]
) {
  const quoteChar = _getQuoteChar(configObject)

  const existingProperty = configObject.getProperty("content")

  if (!existingProperty) {
    const newProperty = {
      name: "content",
      initializer: `[${quoteChar}${content.join(
        `${quoteChar}, ${quoteChar}`
      )}${quoteChar}]`,
    }
    configObject.addPropertyAssignment(newProperty)

    return configObject
  }

  if (existingProperty.isKind(SyntaxKind.PropertyAssignment)) {
    const initializer = existingProperty.getInitializer()

    // If property is an array, append.
    if (initializer?.isKind(SyntaxKind.ArrayLiteralExpression)) {
      for (const contentItem of content) {
        const newValue = `${quoteChar}${contentItem}${quoteChar}`

        // Check if the array already contains the value.
        if (
          initializer
            .getElements()
            .map((element) => element.getText())
            .includes(newValue)
        ) {
          continue
        }

        initializer.addElement(newValue)
      }
    }

    return configObject
  }

  return configObject
}