npm or yarn , that is a problem. 2018/08/26 @ LL.pm 

Twitter: @yosuke_furukawa Github: yosuke-furukawa 

No content

FAQ 

Q. npm ͱ yarn ͬͯͲͬͪ ࢖ͬͨΒ͍͍ΜͰ͔͢ʁ 

A. ͍΍ɺͲͬͪ࢖ͬͯ΋͍͍ Μ͡Όͳ͍Ͱ͔͢ͶʢຊԻʣ ΈΜͳҧͬͯΈΜͳ͍͍ 

Ͳͬͪ΋ύοέʔδΛ؅ཧ͢ Δػೳ͸ͦΖͬͯΔɻ 

ͨͩ·͊ͦΕ͚ͩݴͬͯ΋ಀ ͛ͳͷͰɺҰԠ໌֬ʹࠩผԽ ͞ΕͯΔ෦෼Λ঺հ͢Δ 

ύϑΥʔϚϯε 

ܭଌͯ͠Έͨ (ͲͪΒ΋cache͠ͳ͍ঢ়گ) 

No content

yarnͷউར 

ܭଌͯ͠Έͨ (cacheΛ༗ޮʹͨ͋͠ͱͷ݁Ռ) 

yarnͷউར 

ͳΜͱͳ͘ମײͱ΋͋ͬͯΔɻ ZBSO͕޷͖ͳਓ͸େମ1FSGPSNBODF ͕଎͍ͱ͍͏͜ͱͰ࢖ͬͯΔ 

npm ci 

npm ci $*$%
Ͱ࢖͏ͨΊʹ༨ܭͳॲཧΛ͠ͳ͍ɺͨͩϥΠϒϥ ϦΛθϩ͔Βऔಘ͢Δ͜ͱʹಛԽͨ͠ػೳ 

npm ci ଎͍ 

yarnͷ͕جຊతʹ͸ߴ଎ npmͷ͕஗͍͕ɺCI౳Ͱ͸ yarnΑΓ΋ߴ଎ 

yarn͸։ൃ༻్ʹ޲͍͍ͯΔ npm͸։ൃɾӡ༻ͰͦΕͧΕ ίϚϯυΛ෼͚͍ͯΔ 

ػೳ ʢجຊతʹ΄΅compatibleʣ 

yarnʹ͋ͬͯnpmʹͳ͍ػೳ 

yarn licenses list 

ґଘϥΠϒϥϦͷϥΠηϯε͕ ҰཡͰ͖Δػೳ $ yarn licenses list yarn licenses v1.9.4 !" (BSD-2-Clause OR MIT OR Apache-2.0) # $" [email protected] # !" URL: https://github.com/dominictarr/rc.git # !" VendorName: Dominic Tarr # $" VendorUrl: dominictarr.com !" (GPL-2.0 OR MIT) # $" [email protected] # !" URL: https://github.com/faisalman/ua-parser-js.git # !" VendorName: Faisal Salman # $" VendorUrl: http://github.com/faisalman/ua-parser-js !" (MIT AND BSD-3-Clause) # $" [email protected] # !" URL: git://github.com/crypto-browserify/sha.js.git # !" VendorName: Dominic Tarr # $" VendorUrl: https://github.com/crypto-browserify/sha.js 

yarn upgrade-interactive 

ґଘϥΠϒϥϦͷߋ৽Λର࿩ܕ γΣϧͰߦ͑Δػೳ 

npmʹ͋ͬͯyarnʹͳ͍ػೳ 

npm audit 

ґଘϥΠϒϥϦͰ੬ऑੑ͕ใࠂ ͞Ε͍ͯͳ͍͔Λ؂ࠪ͢Δػೳ $ npm audit === npm audit security report === # Run npm install --save-dev [email protected] to resolve 14 vulnerabilities SEMVER WARNING: Recommended action is a potentially breaking change %"""""""""""""""&""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""' # Low # Prototype Pollution # !"""""""""""""""("""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""") # Package # lodash # !"""""""""""""""("""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""") # Dependency of # nyc [dev] # !"""""""""""""""("""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""") # Path # nyc > istanbul-lib-instrument > babel-generator > # # # babel-types > lodash # !"""""""""""""""("""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""") # More info # https://nodesecurity.io/advisories/577 # $"""""""""""""""*""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""+ 

࠷ۙ͸ηΩϡϦςΟ͕೤͍ʢ΍ ͹͍ʣ 

͔͠΋npm audit͸npmಠࣗͷػೳͱͯ͠ ఏڙ͞ΕͯΔʢଞͷαʔϏεͰ͸࢖͑ͳ͍ʣ 

yarn͸։ൃπʔϧͱͯ͠༏ल npm͸ӡ༻πʔϧͱͯ͠༏ल 

᠘ ʢ࢖͍ͬͯͯҾ͔͔ͬΔϙΠϯτʣ 

yarn ͷ᠘ 

ॏෳϞδϡʔϧΛ࡟আ͢Δػ ೳ͕npmͱcompatibleͳಈ ͖Λ͠ͳ͍ɻ 

yarn, npm ͱ΋ʹॏෳͨ͠Ϟδϡʔ ϧ͕͋ͬͨΒτοϓϨϕϧʹ࡞Δ // ͜͏͍͏ґଘؔ܎͕͋ͬͨΒ app (lib_Aͱlib_Bʹґଘ)/ node_modules/ lib_A(v1) (lib_B(v1)ʹґଘ)/ lib_B(v1) (lib_C(v1)ʹґଘ)/ lib_C (v1)/ lib_B(v2) (lib_C(v1)ʹґଘ)/ lib_C (v1)/ // CΛҰͭʹͯ͠ɺ֊૚ߏ଄Λઙ͘͢Δػೳ(dedupeͱݺ͹ΕΔ) app/ node_modules/ lib_A (v1)/ lib_B(v1)/ lib_B(v2)/ lib_C(v1)/ 

yarnͷ৔߹΋جຊ͸͜ͷ dedupe͕ಈ͕͘ɺ׬ᘳ͡Ό ͳ͍ɻ
 https://github.com/yarnpkg/yarn/issues/6070 

yarn dedupeෆ׬શ໰୊ // dedupe͕ෆ׬શͩͱ͜͏ͳΔɻ app/ node_modules/ lib_A (v1)/ lib_B(v1)/ lib_C(v1)/ lib_B(v2)/ lib_C(v1)/ ΄ͱΜͲͷέʔεͰ͸໰୊ʹͳΒͳ͍͕ɺ$#΁ͷٯ ࢀর͕͋Δͱ/( 

࣮ࡍʹ͸webpackϞδϡʔϧ ͱͦͷґଘͰҰճNGʹͳͬ ͨɻ 

npm ͷ᠘ 

npm install ͰຖճlockϑΝΠ ϧॻ͖׵͑ͯ͘Δ໰୊ 

package-lockϑΝΠϧॻ͖׵͑ Δ໰୊ $ npm install $ git diff - package-lock.json (!! npm install ͚ͨͩ͠ͳͷʹϩοΫϑΝΠϧ͕ॻ͖׵Θͬ ͯΔ !!) 

όάͱͯ͠͸ೝࣝ͞ΕͯΔ͕ɺ ·ͩ௚ͬͯͳ͍ɻ 

No content

package-lockϑΝΠϧॻ͖׵͑ Δ໰୊ // workaround $ npm install --nosave OR $ npm ci // npm install —nosave option Λ͚ͭΔͱͦͷλΠϛϯάͰ͸package-lock͸࡞ Βͳ͍ɻ // npm ci ͸package-lock.json͔Βμ΢ϯϩʔυ͢ΔҎ֎ͷҰ੾Λ͠ͳ͍ɻ 

yarn͸CLI͕ͩރΕͯͳ͍ npm͸lockͷ෦෼ʹ·ͩएׯ ͷই͕͋Δɻ 

·ͱΊ • ੑೳ • yarn ͷ͕جຊతʹ଎͍ • npm ci΋ߴ଎ • ػೳ • yarnͷ͕։ൃ໘Ͱخ͍͠ػೳ͕ଟ͍ • npmͷ͕ӡ༻໘ʢಛʹηΩϡϦςΟʣͰخ͍͠ػೳ͕ଟ͍ • ᠘ • yarn => deduce ؁͍໰୊ • npm => lockfileউखʹॻ͖׵͑ͪΌ͏໰୊ 

Q. npm ͱ yarn ͬͯͲͬͪ ࢖ͬͨΒ͍͍ΜͰ͔͢ʁ 

(ੑೳతʹ͸yarnͷ͕଎͍͠ɺ ศརίϚϯυ΋͋Δ͚Ͳɺ npmͷ͕ηΩϡΞͩ͠ɺރΕ ͯΔ͠͏ʔʔΜ…) 

A. ޷͖ͳͷ࢖ͬͨΒ͍͍Μ͡Ό ͳ͍Ͱ͔͢Ͷ (^^)