PhpStormで重複コードを一瞬で見つける

第144回PHP勉強会の発表内容です

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