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path = require "path"
async = require "async"
{PathSearcher, PathScanner, search} = require 'scandal'
module.exports = (rootPaths, regexSource, options, searchOptions={}) ->
callback = @async()
PATHS_COUNTER_SEARCHED_CHUNK = 50
pathsSearched = 0
searcher = new PathSearcher(searchOptions)
searcher.on 'file-error', ({code, path, message}) ->
emit('scan:file-error', {code, path, message})
searcher.on 'results-found', (result) ->
emit('scan:result-found', result)
flags = "g"
flags += "i" if options.ignoreCase
regex = new RegExp(regexSource, flags)
async.each(
rootPaths,
(rootPath, next) ->
options2 = Object.assign {}, options,
inclusions: processPaths(rootPath, options.inclusions)
globalExclusions: processPaths(rootPath, options.globalExclusions)
scanner = new PathScanner(rootPath, options2)
scanner.on 'path-found', ->
pathsSearched++
if pathsSearched % PATHS_COUNTER_SEARCHED_CHUNK is 0
emit('scan:paths-searched', pathsSearched)
search regex, scanner, searcher, ->
emit('scan:paths-searched', pathsSearched)
next()
callback
)
processPaths = (rootPath, paths) ->
return paths unless paths?.length > 0
rootPathBase = path.basename(rootPath)
results = []
for givenPath in paths
segments = givenPath.split(path.sep)
firstSegment = segments.shift()
results.push(givenPath)
if firstSegment is rootPathBase
if segments.length is 0
results.push(path.join("**", "*"))
else
results.push(path.join(segments...))
results
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