gatsby-page-utils

gatsby-page-utils

Usage

npm install gatsby-page-utils

Example

const {
  createPath,
  ignorePath,
  validatePath,
  watchDirectory,
} = require(`gatsby-page-utils`)

// ...

const pagesDirectory = "/pages"
watchDirectory(
  pagesDirectory,
  "**/*.{js, jsx}",
  addedPath => {
    // Filter out special components that shouldn't be made into
    // pages.
    if (!validatePath(addedPath)) {
      return
    }

    // Filter out anything matching the given ignore patterns and options
    if (ignorePath(addedPath, "*/connexion")) {
      return
    }

    // Create page object
    const createdPath = createPath(addedPath)
    const page = {
      path: createdPath,
      component: systemPath.join(pagesDirectory, addedPath),
    }

    // Add page
    createPage(page)
  },
  removedPath => {
    // Delete the page for the now deleted component.
    const componentPath = systemPath.join(pagesDirectory, removedPath)
    store.getState().pages.forEach(page => {
      if (page.component === componentPath) {
        deletePage({
          path: createPath(removedPath),
          component: componentPath,
        })
      }
    })
  }
)

watchDirectory

Watch activity on a directory and call functions each time a file is added or removed

property	description	type
path	Directory path in which pages are stored	String
glob	A glob that select files to watch	String
onNewFile	A function called each time a new file is added	Function
onRemovedFile	A function called each time a file is removed	Function

createPath

Create a page path from a file path. It returns the page path.

property	description	type
path	File path	String

validatePath

Validate a file path. It veryfies that it doesn't contains specific characters or strings. It returns true if path is valid otherwise it returns false.

property	description	type
path	File path	String

ignorePath

Determines if path should be ignored regarding of a ignore pattern passed as parameter. It returns true if the passed path should be ignored otherwise it returns false.

property	description	type
path	File path	String
ignore	A pattern to match with file path	(Object