@antora/assembler/lib/util/compute-out.js

A JavaScript library that merges AsciiDoc content from multiple pages in an Antora site into assembly files and delegates to an exporter to convert those files to another format, such as PDF.

'use strict'

const { posix: path } = require('node:path')

function computeOut (src) {
  const { component, version, module: module_ = 'ROOT', family, relative } = src
  const outRelative = family === 'page' ? relative.replace(/\.adoc$/, '.html') : relative
  const { dir: dirname, base: basename } = path.parse(outRelative)
  const componentVersion = this.getComponentVersion(component, version)
  const versionSegment =
    'activeVersionSegment' in componentVersion
      ? componentVersion.activeVersionSegment
      : resolveActiveVersionSegment.call(this, component, version)
  const outDirSegments = []
  const moduleRootPathSegments = []
  if (component !== 'ROOT') outDirSegments.push(component)
  if (versionSegment) outDirSegments.push(versionSegment)
  if (module_ !== 'ROOT') outDirSegments.push(module_)
  const outModuleDirSegments = outDirSegments.slice()
  if (family !== 'page') {
    outDirSegments.push(`_${family}s`)
    moduleRootPathSegments.push('..')
  }
  if (dirname) {
    outDirSegments.push(dirname)
    for (const _ of dirname.split('/')) moduleRootPathSegments.push('..')
  }
  const rootPathSegments = moduleRootPathSegments.slice()
  for (const _ of outModuleDirSegments) rootPathSegments.push('..')
  const outDirname = outDirSegments.join('/')
  const result = {
    dirname: outDirname,
    basename,
    path: outDirname + '/' + basename,
    moduleRootPath: moduleRootPathSegments.length ? moduleRootPathSegments.join('/') : '.',
    rootPath: rootPathSegments.length ? rootPathSegments.join('/') : '.',
  }
  return result
}

function resolveActiveVersionSegment (component, version) {
  let startPage = this.resolvePage('index.adoc', { component, version })
  let startPageSrc
  if (startPage) {
    startPageSrc = startPage.src
  } else {
    startPageSrc = { component, version, module: 'ROOT', family: 'page', relative: 'index.adoc' }
    this.removeFile((startPage = this.addFile({ src: startPageSrc })))
  }
  const outPathSegments = startPage.out.path.split('/')
  for (const _ of startPage.out.moduleRootPath.split('/')) outPathSegments.pop()
  if (startPageSrc.module !== 'ROOT') outPathSegments.pop()
  if (startPageSrc.component !== 'ROOT') outPathSegments.shift()
  return outPathSegments.length ? outPathSegments[0] : ''
}

module.exports = computeOut