Function insertNextToPattern

src/toolbox/patching-tools.ts:142–156

(data: string, opts: GluegunPatchingPatchOptions)

}

function insertNextToPattern(data: string, opts: GluegunPatchingPatchOptions) {
  // Insert before/after a particular string
  const findPattern: string | RegExp = opts.before || opts.after

  // sanity check the findPattern
  const patternIsString = typeof findPattern === 'string'
  if (!(findPattern instanceof RegExp) && !patternIsString) return false

  const isPatternFound = isPatternIncluded(data, findPattern)
  if (!isPatternFound) return false

  const originalString = patternIsString ? findPattern : data.match(findPattern)[0]
  const newContents = opts.after ? `${originalString}${opts.insert || ''}` : `${opts.insert || ''}${originalString}`
  return data.replace(findPattern, newContents)
}

function isPatternIncluded(data: string, findPattern: string | RegExp): boolean {
  if (!findPattern) return false