element-plus/docs/.vitepress/vitepress/composables/source-code.ts

import { computed } from 'vue'
import { useData } from 'vitepress'
import { createGitHubUrl } from '../utils'

import type { Ref } from 'vue'

export const useSourceCode = (path: Ref<string>) => {
  const { theme } = useData()

  const demoUrl = computed(() => {
    const {
      repo,
      docsDir = '',
      docsBranch = 'dev',
      docsRepo = repo,
    } = theme.value

    return createGitHubUrl(docsRepo, docsDir, docsBranch, path.value)
  })

  return demoUrl
}