PhpStormで重複コードを一瞬で見つける

Transcript

1. PhpStormͰ ॏෳίʔυΛ ҰॠͰݟ͚ͭΔ Cybozu ਿࢁ༞Ұ @oogFranz

2. Who am I • ਿࢁ ༞Ұ @oogFranz • αΠϘ΢ζ5೥໨ΤϯδχΞ •

   େاۀ޲͚άϧʔϓ΢ΣΞGaroon࡞ͬͯΔʢPHP 7) • ෳۀδϟζϛϡʔδγϟϯ@MASHݭָஂ

3. PHP ConferenceͰ·͢ʂ

4. ॏෳίʔυ͋Γ·ͤΜ͔ʁ • ಈ͘ίʔυ͕ίϐϖ͞Ε͍ͯΔ • ෆ۩߹͕͋ͬͨΒॏෳίʔυશͯमਖ਼͕ඞཁ • ػೳ௥Ճ͕͋ͬͨΒॏෳίʔυશͯରԠ͕ඞཁ • ίϐϖίʔυΛݟ͚ͭͯॏෳΛऔΓআ͖͍ͨ

5. ॏෳίʔυ͋Γ·ͤΜ͔ʁ • ಈ͘ίʔυ͕ίϐϖ͞Ε͍ͯΔ • ෆ۩߹͕͋ͬͨΒॏෳίʔυશͯमਖ਼͕ඞཁ • ػೳ௥Ճ͕͋ͬͨΒॏෳίʔυશͯରԠ͕ඞཁ • ίϐϖίʔυΛݟ͚ͭͯॏෳΛऔΓআ͖͍ͨ PhpStormͰ؆୯ʹݟ͚ͭΑ͏ʂ

6. ΍Γ͔ͨ 1. ·ͣPhpStorm 2019.2ΛΠϯετʔϧ͠·͢

7. ΍Γ͔ͨ 1. ·ͣPhpStorm 2019.2ΛΠϯετʔϧ͠·͢
 
 Ҏ্Ͱ͢

8. DEMO https://github.com/oogFranz/duplicate-code-test

9. ॏෳ͕Weak WarningͰ

10. Diff viewerͰॏෳ۩߹Λ֬ೝ

11. ม਺໊ͷҧ͍΋ݕग़

12. ؔ਺໊΍Ϧςϥϧ஋ͷҧ͍΋ݕग़ • Editor > Duplicates ͔Βཁઃఆมߋ

13. ΑΓෳࡶͳॏෳɺ୯७ͳॏෳΛݟ͚ͭΔ • unit ͱ͍͏୯ҐΛಈ͔͢͜ͱͰॏෳͷݟ͔ͭΔ۩߹Λมߋ • units = 2 * number

    of statements + number of expressions • σϑΥϧτ஋͸45ɻׂͱద౰ͳ஋ͳͷͰ߹Θͳ͔ͬͨΒมߋ͢Δɻ • ݴޠ͝ͱʹઃఆՄೳ

14. ॏෳίʔυΛશ෦ݟ͚ͭΔ • Run Inspection By NameΛ࣮ߦ • Mac ͳΒ ”⌃⌥⇧I”

    ɺWinͳΒ ”Ctrl+Shift+Alt+I” • “Duplicated code fragment” Λೖྗ࣮ͯ͠ߦ