<commit_before>require! {
  fw
  './utils'
  './extract'
  './download'
  path: { join }
  child_process: { spawn }
  events: { EventEmitter }
}

{ next, tmpdir, read, has, rm, delimiter, is-win, is-array, replace-env-vars, is-url, handle-exit } = utils

const hooks-keys = <[ prestart start stop poststop ]>
const regex-quotes = /^[\'\"]+|[\'\"]+$/g
const regex-spaces = /\s+/g

module.exports = run = (options) ->
  { path, hooks, args, dest, clean } = options = options |> apply
  emitter = new EventEmitter

  clean-dir = -> try rm dest if clean

  on-error = (err, code, cmd) ->
    clean-dir!
    err |> emitter.emit 'error', _, code,  cmd

  on-entry = (entry) ->
    entry |> emitter.emit 'entry', _ if entry

  on-archive = (archive) ->
    archive |> emitter.emit 'archive', _ if archive

  on-progress = (status) ->
    status |> emitter.emit 'progress', _

  on-download-end = ->
    it |> emitter.emit 'downloadEnd', _

  on-end = (options, nar) ->
    clean-dir!
    options |> emitter.emit 'end', _, nar

  on-download = ->
    'download' |> emitter.emit

  hooks-fn = (nar) ->
    buf = []

    add-hook-fn = (cmd, hook) ->
      if args and (hook |> has args, _) and args[hook]
        cmd += ' ' + (
          (if args[hook] |> is-array then
            args[hook].join ' '
          else
            args[hook]) |> parse-flags)
      cmd |> exec emitter, _, dest, hook |> buf.push

    add-start-main-script = ->
      if nar.manifest.main
        "node #{nar.manifest.main or ''}"
        |> exec emitter, _, dest, 'start'
        |> buf.push

    for own hook, cmd of (nar |> get-hooks _, args)
      when hooks or (not hooks and hook is 'start')
      then hook |> add-hook-fn cmd, _

    add-start-main-script! unless buf.length
    buf

  app-runner = (options) ->
    nar = dest |> read-nar-json
    nar |> emitter.emit 'info', _
    dest |> set-environment _, nar.manifest

    if nar.binary
      dest |> extend-path
      unless nar |> is-binary-valid
        return new Error 'Unsupported binary platform or processor' |> on-error

    fw.series (nar |> hooks-fn), (err) ->
      return err |> on-error if err
      options |> on-end _, nar

  extract-archive = ->
    'extract' |> emitter.emit
    (options |> extract)
      .on 'error', on-error
      .on 'entry', on-entry
      .on 'archive', on-archive
      .on 'end', app-runner

  download-archive = ->
    options <<< url: path
    (options |> download)
      .on 'download', on-download
      .on 'error', on-error
      .on 'progress', on-progress
      .on 'end', ->
        options <<< path: it
        it |> on-download-end
        extract-archive!

  do-extract = -> next ->
    return new Error 'Required archive path option' |> on-error unless path
    clean-dir |> handle-exit

    if path |> is-url
      download-archive!
    else
      extract-archive!

  try
    do-extract!
  catch
    "Cannot run the archive: #{e}" |> on-error
  emitter

apply = (options) ->
  {
    gzip: yes
    options.path
    options.args or {}
    options.auth
    options.proxy
    options.strict-SSL
    options.dest or (options.path |> tmpdir)
    clean: if options.clean? then options.clean else yes
    hooks: if options.hooks? then options.hooks else yes
  }

read-nar-json = (dest) ->
  '.nar.json' |> join dest, _ |> read

get-hooks = (nar, args = {}) ->
  hooks = {}
  { scripts ||= {} } = nar.manifest
  scripts |> apply-default-script-hooks nar, _

  [ scripts, args ]
  .for-each (hooks |> merge-hooks-args)

  hooks

apply-default-script-hooks = (nar, scripts, args) ->
  unless scripts.start
    scripts <<< start: "node #{nar.manifest.main or 'index'}"

merge-hooks-args = (hooks) -> (args = {}) ->
  hooks-keys
  .filter -> it |> has args, _
  .filter -> args[it]
  .for-each (hooks |> map-hooks _, args)

map-hooks = (hooks, args) -> ->
  hooks <<< (it): args[it] unless hooks[it]

is-binary-valid = (nar) ->
  { platform, arch } = nar.info
  platform is process.platform
  and (arch is process.arch
  or  (arch is 'ia32' and process.arch is 'x64'))

exec = (emitter, command, cwd, hook) -> (done) ->
  { cmd, args } = command |> get-command-script |> parse-command

  (cmd-str = "#{cmd} #{args.join ' '}") |> emitter.emit 'command', _, hook
  cmd-str |> emitter.emit 'start', _ if hook is 'start'

  process.env.PATH = "node_modules/.bin#{delimiter}#{process.env.PATH}"

  child = cmd |> spawn _, args, { cwd, process.env }
  child.stdout.on 'data', -> it.to-string! |> emitter.emit 'stdout', _
  child.stderr.on 'data', -> it.to-string! |> emitter.emit 'stderr', _
  child.on 'error', (|> done)<commit_msg>only prepend to PATH if actually necessary<commit_after>require! {
  fw
  './utils'
  './extract'
  './download'
  path: { join }
  child_process: { spawn }
  events: { EventEmitter }
}

{ next, tmpdir, read, has, rm, delimiter, is-win, is-array, replace-env-vars, is-url, handle-exit } = utils

const hooks-keys = <[ prestart start stop poststop ]>
const regex-quotes = /^[\'\"]+|[\'\"]+$/g
const regex-spaces = /\s+/g

module.exports = run = (options) ->
  { path, hooks, args, dest, clean } = options = options |> apply
  emitter = new EventEmitter

  clean-dir = -> try rm dest if clean

  on-error = (err, code, cmd) ->
    clean-dir!
    err |> emitter.emit 'error', _, code,  cmd

  on-entry = (entry) ->
    entry |> emitter.emit 'entry', _ if entry

  on-archive = (archive) ->
    archive |> emitter.emit 'archive', _ if archive

  on-progress = (status) ->
    status |> emitter.emit 'progress', _

  on-download-end = ->
    it |> emitter.emit 'downloadEnd', _

  on-end = (options, nar) ->
    clean-dir!
    options |> emitter.emit 'end', _, nar

  on-download = ->
    'download' |> emitter.emit

  hooks-fn = (nar) ->
    buf = []

    add-hook-fn = (cmd, hook) ->
      if args and (hook |> has args, _) and args[hook]
        cmd += ' ' + (
          (if args[hook] |> is-array then
            args[hook].join ' '
          else
            args[hook]) |> parse-flags)
      cmd |> exec emitter, _, dest, hook |> buf.push

    add-start-main-script = ->
      if nar.manifest.main
        "node #{nar.manifest.main or ''}"
        |> exec emitter, _, dest, 'start'
        |> buf.push

    for own hook, cmd of (nar |> get-hooks _, args)
      when hooks or (not hooks and hook is 'start')
      then hook |> add-hook-fn cmd, _

    add-start-main-script! unless buf.length
    buf

  app-runner = (options) ->
    nar = dest |> read-nar-json
    nar |> emitter.emit 'info', _
    dest |> set-environment _, nar.manifest

    if nar.binary
      dest |> extend-path
      unless nar |> is-binary-valid
        return new Error 'Unsupported binary platform or processor' |> on-error

    fw.series (nar |> hooks-fn), (err) ->
      return err |> on-error if err
      options |> on-end _, nar

  extract-archive = ->
    'extract' |> emitter.emit
    (options |> extract)
      .on 'error', on-error
      .on 'entry', on-entry
      .on 'archive', on-archive
      .on 'end', app-runner

  download-archive = ->
    options <<< url: path
    (options |> download)
      .on 'download', on-download
      .on 'error', on-error
      .on 'progress', on-progress
      .on 'end', ->
        options <<< path: it
        it |> on-download-end
        extract-archive!

  do-extract = -> next ->
    return new Error 'Required archive path option' |> on-error unless path
    clean-dir |> handle-exit

    if path |> is-url
      download-archive!
    else
      extract-archive!

  try
    do-extract!
  catch
    "Cannot run the archive: #{e}" |> on-error
  emitter

apply = (options) ->
  {
    gzip: yes
    options.path
    options.args or {}
    options.auth
    options.proxy
    options.strict-SSL
    options.dest or (options.path |> tmpdir)
    clean: if options.clean? then options.clean else yes
    hooks: if options.hooks? then options.hooks else yes
  }

read-nar-json = (dest) ->
  '.nar.json' |> join dest, _ |> read

get-hooks = (nar, args = {}) ->
  hooks = {}
  { scripts ||= {} } = nar.manifest
  scripts |> apply-default-script-hooks nar, _

  [ scripts, args ]
  .for-each (hooks |> merge-hooks-args)

  hooks

apply-default-script-hooks = (nar, scripts, args) ->
  unless scripts.start
    scripts <<< start: "node #{nar.manifest.main or 'index'}"

merge-hooks-args = (hooks) -> (args = {}) ->
  hooks-keys
  .filter -> it |> has args, _
  .filter -> args[it]
  .for-each (hooks |> map-hooks _, args)

map-hooks = (hooks, args) -> ->
  hooks <<< (it): args[it] unless hooks[it]

is-binary-valid = (nar) ->
  { platform, arch } = nar.info
  platform is process.platform
  and (arch is process.arch
  or  (arch is 'ia32' and process.arch is 'x64'))

exec = (emitter, command, cwd, hook) -> (done) ->
  { cmd, args } = command |> get-command-script |> parse-command

  (cmd-str = "#{cmd} #{args.join ' '}") |> emitter.emit 'command', _, hook
  cmd-str |> emitter.emit 'start', _ if hook is 'start'

  if process.env.PATH.indexOf("node_modules/.bin") isnt 0
    process.env.PATH = "node_modules/.bin#{delimiter}#{process.env.PATH}"

  child = cmd |> spawn _, args, { cwd, process.env }
  child.stdout.on 'data', -> it.to-string! |> emitter.emit 'stdout', _
  child.stderr.on 'data', -> it.to-string! |> emitter.emit 'stderr', _
  child.on 'error', (|> done)
{'fraction_non_alphanumeric': 0.16453244377488432, 'fraction_numerical': 0.0009684708920692994, 'mean_word_length': 2.399414776883687, 'pattern_counts': {'":': 0, '<': 29, '<?xml version=': 0, '>': 171, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 22, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5641032', 'n_tokens_mistral': 3244, 'n_tokens_neox': 3186, 'n_words': 853}