Speed up CLI startup time

[agriyakhetarpal]

Homebrew

❯ hyperfine --warmup 1 "hugo version"
Benchmark 1: hugo version
  Time (mean ± σ):      35.8 ms ±   2.3 ms    [User: 23.1 ms, System: 13.7 ms]
  Range (min … max):    34.2 ms …  53.6 ms    79 runs

hugo-python-distributions

❯ hyperfine --warmup 1 "hugo version"
Benchmark 1: hugo version
  Time (mean ± σ):      54.0 ms ±   5.3 ms    [User: 36.6 ms, System: 18.1 ms]
  Range (min … max):    50.5 ms …  83.7 ms    54 runs

Reading the VERSION file is fast enough, but I wonder if we can optimise further...

[agriyakhetarpal]

with python -X importtime:

tap to show output

❯ python -X importtime hugo version
import time: self [us] | cumulative | imported package
import time:       237 |        237 |   _io
import time:        27 |         27 |   marshal
import time:       203 |        203 |   posix
import time:       246 |        711 | _frozen_importlib_external
import time:       501 |        501 |   time
import time:        75 |        575 | zipimport
import time:       106 |        106 |     _codecs
import time:       185 |        291 |   codecs
import time:       543 |        543 |   encodings.aliases
import time:      1222 |       2054 | encodings
import time:       297 |        297 | encodings.utf_8
import time:        85 |         85 | _signal
import time:        23 |         23 |     _abc
import time:        97 |        120 |   abc
import time:       117 |        237 | io
import time:        37 |         37 |       _stat
import time:        38 |         74 |     stat
import time:       604 |        604 |     _collections_abc
import time:        21 |         21 |       genericpath
import time:        38 |         58 |     posixpath
import time:       367 |       1101 |   os
import time:        76 |         76 |   _sitebuiltins
import time:       527 |        527 |   encodings.utf_8_sig
import time:       292 |        292 |     __future__
import time:       535 |        827 |   _virtualenv
import time:       571 |        571 |   _distutils_hack
import time:       383 |        383 |         types
import time:        50 |         50 |           _operator
import time:       326 |        376 |         operator
import time:        79 |         79 |             itertools
import time:       232 |        232 |             keyword
import time:       246 |        246 |             reprlib
import time:        44 |         44 |             _collections
import time:       930 |       1530 |           collections
import time:        34 |         34 |           _functools
import time:       597 |       2159 |         functools
import time:      1248 |       4164 |       enum
import time:        47 |         47 |         _sre
import time:       369 |        369 |           re._constants
import time:       458 |        826 |         re._parser
import time:       211 |        211 |         re._casefix
import time:       567 |       1650 |       re._compiler
import time:       240 |        240 |       copyreg
import time:       513 |       6565 |     re
import time:      1150 |       7715 |   sitecustomize
import time:      1008 |      11821 | site
import time:       305 |        305 |       warnings
import time:       287 |        592 |     importlib
import time:        32 |        623 |   importlib.machinery
import time:       264 |        264 |     importlib._abc
import time:       124 |        388 |   importlib.util
import time:        60 |       1071 | runpy
import time:        72 |         72 |   hugo
import time:      1626 |       1697 | hugo.cli
import time:        44 |         44 |   _wmi
import time:       824 |        867 | platform