Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
The Pragmatic Glitch (#rubykaigi 2013 LT)
Search
Shimpei Makimoto
May 31, 2013
Design
4
3.3k
The Pragmatic Glitch (#rubykaigi 2013 LT)
one of lightning talks in RubyKaigi 2013
31st May, 2013
Shimpei Makimoto
May 31, 2013
Tweet
Share
More Decks by Shimpei Makimoto
See All by Shimpei Makimoto
How to Work with Legacy Ruby on Rails Applications in Treasure Data
makimoto
1
1.5k
JPEG を壊す話 / About JPEG corruption
makimoto
0
320
Training for New Graduates in Cookpad (Shitei Todan 2015)
makimoto
0
6.1k
How to read code
makimoto
0
1.5k
Glitch, OSS activities, and so on (Oedo RubyKaigi 04 #oedo04)
makimoto
5
1.4k
The Pragmatic Animated GIF in Ruby (a RubyConf 2013 lightning talk)
makimoto
0
540
グリッチについて話をします。 #wedding_s
makimoto
3
570
chiyahoya.me
makimoto
0
330
Recipes of Recipe Search
makimoto
5
1.5k
Other Decks in Design
See All in Design
なぜプレイドにデザインエンジニアが必要だったのか?
t32k
0
650
アクセシビリティに取り組むメリット
magi1125
2
240
UXデザインはなぜ定着しないのか?
designstudiopartners
0
920
街・都市という眼差し。まちづくりにおける規範と実践
sakamon
0
130
デザインの意思決定を加速するワークショップ設計 / Workshop design to accelerate design decision-making
lycorptech_jp
PRO
0
430
【30人中30人が3ヶ月平均180万収入アップ】マズロー安達の弟子、成功事例集
maslow_akkun
0
280
ビジネス成果を最大限に発揮するPORTFOLIO
ataxi1003
0
450
「批評」を習慣にするための仕組みと場のデザイン/uxdesign202507
nikkei_engineer_recruiting
6
800
エンジニアでも捗る デザイナー的思考入門
tinykitten
1
1.2k
組織で取り組むアクセシビリティのはじめ方
masakiohsumi
0
170
BPStudy#213〜ビジネスアナリシスとDDD(ドメイン駆動設計)パネルディスカッション資料 / BPStudy213-panel
haru860
0
480
UX & Accessibilité cognitive : et si vous simplifiiez vraiment l’expérience utilisateur ?
marietournelle35
0
120
Featured
See All Featured
GitHub's CSS Performance
jonrohan
1032
460k
Producing Creativity
orderedlist
PRO
347
40k
Site-Speed That Sticks
csswizardry
10
800
Why Our Code Smells
bkeepers
PRO
339
57k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
61k
We Have a Design System, Now What?
morganepeng
53
7.8k
The Language of Interfaces
destraynor
160
25k
Building an army of robots
kneath
306
46k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
48
9.7k
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.4k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
21k
Transcript
The Pragmatic Glitch Shimpei Makimoto https://github.com/makimoto https://twitter.com/makimoto one of lightning
talks in RubyKaigi 2013 | 31st May, 2013 Έͳ͞Μ͜Μʹͪɻ 5IF1SBHNBUJD(MJUDIͱ͍͏Λ͠·͢ɻ
ӳޠͰൃද͢ΔͷͰຊޠͷࣈນΛ͍Ε·ͨ͠ɻ I talk it in (poor) English, so I added
Japanese subs.
self ·ͣࣗݾհ͔Βɻ
Shimpei Makimoto / ຊ৻ฏ https://{github,twitter}.com/makimoto photo by mirakui ຊ৻ฏͱ͍͍·͢ɻ 5XJUUFS(JU)VCͰ!NBLJNPUPͱ͍͏ΞΧϯτ໊Ͱ͢ɻ
We’re hiring http://info.cookpad.com/jobs http://info.cookpad.com/en ΫοΫύου͔Βདྷ·ͨ͠ɻ ͨͩ͠ɺ͜ͷൃදࢲͷޏ༻ओͱؔ͋Γ·ͤΜɻ
Glitch ͦΕͰάϦονͷͰ͢ɻ άϦονͱԿͰ͠ΐ͏͔ʁ
me ͜ΕࢲͰ͢ɻ
me me (in glitch) ͜ΕࢲͰ͢ɻͨͩ͠άϦον͍ͯ͠·͢ɻ
It’s Glitch ͜Ε͕άϦονͰ͢ɻ͓Θ͔ΓͰ͢Ͷʁ
How? Ͳ͏ͬͯ͜ΕΛ࣮ݱ͍ͯ͠ΔͷͰ͠ΐ͏ʁͱͯ؆୯Ͱ͢ɻ
sed ‘s/a/b/g’ original.jpg > glitch.jpg ͜Ε͚ͩͰ͢ɻTFEΛͬͯจࣈBΛจࣈCʹஔ͖͍͑ͯ·͢ɻ
sed(1) glitch ͜ΕΛҰൠʹTFEάϦονͱ͍͍·͢ɻ
Ruby 3VCZΛͬͯͳ͍ʁͦ͏Ͱ͢ͶɻͰ3VCZΛͬͯΈ·͢ɻ
ruby as better sed ·ͣΑΓྑ͍TFEͱͯ͠SVCZΛ͍·͢ɻ
ruby -e 'print ARGF.read.force_encoding("ascii-8bit").gsub("a", "b")' original.jpg > glitch.jpg ͍͍ͩͨ͜ΜͳϫϯϥΠφʔͰઌ΄Ͳͷͷͱಉ͜͡ͱ͕࣮ݱͰ͖·͢ɻ
ruby --external-encoding=ascii-8bit -e 'print ARGF.read.gsub("a", "b")' original.jpg > glitch.jpg ͪΖΜ͓ΈͰ͜Μͳײ͡ʹ͍͍ͯ͠Ͱ͢ɻ
me me (in glitch) ͍ͣΕʹ͠ΖάϦονͨ͠ը૾͕࡞͞Ε·͢ɻ
data = ARGF.read.force_encoding('ascii-8bit') 36.times do |from| from = from.to_s(36) 36.times
do |to| to = to.to_s(36) open("#{from}_#{to}.jpg", 'wb').write(data.gsub(from, to)) end end ͍ͬͺ͍ը૾͕΄͚͠Ε͜ΜͳίʔυΛॻ͍͍͍ͯͰ͢ɻ
͜Μͳײ͡Ͱը૾͕େྔʹ࡞͞Ε·͢ɻ
៉ྷͰ͢Ͷɻ
Glitch in web applications ͯ͞ɺ͔͜͜Βগ͠Ԡ༻دΓͷΛ͠·͢ɻ ΣϒΞϓϦέʔγϣϯΛྫʹ͠·͠ΐ͏ɻ
Rubyistokei ͓ͦΒ͘Έͳ͞Μ3VCZJTUPLFJΛ͝ଘͩͱࢥ͍·͢ɻ
͜ΕͰ͢ɻ
I apologize before a demo ͋Β͔͡Ί֤ؔҐʹँΓ·͢ɻ
Let’s break Rubyistokei ͦΕͰ3VCZJTUPLFJΛյ͠·͠ΐ͏ɻ
Glitch Rubyistokei 3VCZJTUPLFJ͔ΒϑΥʔΫͤ͞ɺ (MJUDI3VCZJTUPLFJΛ࡞Γ·ͨ͠ɻ ແஅͰ
http://glitch-rubyistokei.herokuapp.com
إ͕ݟ͑ͨ΄͏͕ྑ͍ͱࢥͬͨͷͰɺ ͜Μͳײ͡Ͱ͚ͩյ͢ͱ͍͏͜ͱΛͯ͠Έ·ͨ͠ɻ
How? ͜Ε͕ͲͷΑ͏ʹ࣮ݱ͞Ε͍ͯΔ͔ɺ ιʔείʔυΛݟͯΒ͏ͷ͕ૣ͍Ͱ͢ɻ
3VCZJTUPLFJ4JOBUSBΞϓϦέʔγϣϯͰ͢ɻ ը૾Λյ͢ϝιουΛՃͯͦ͠ΕΛද͍ࣔͤͯ͞·͢ɻ
get '/glitch' do data = open(params[:url]).read data_a = data[0 ..
data.size / 2] data_b = data[data.size / 2 .. -1] content_type :jpeg data_a + data_b.force_encoding('ascii-8bit').gsub('a', 'b') end ͬ͟ͱݟͯΒͬͨΒΘ͔ΔΜͰ͕͢ɺ؆୯ͳϩδοΫͰ͢ɻ
get '/glitch' do data = open(params[:url]).read data_a = data[0 ..
data.size / 2] data_b = data[data.size / 2 .. -1] content_type :jpeg data_a + data_b.force_encoding('ascii-8bit').gsub('a', 'b') end ը૾ϑΝΠϧΛಡΈࠐΜͰɺͭͷϒϩοΫʹΘ͚·͢ɻ
get '/glitch' do data = open(params[:url]).read data_a = data[0 ..
data.size / 2] data_b = data[data.size / 2 .. -1] content_type :jpeg data_a + data_b.force_encoding('ascii-8bit').gsub('a', 'b') end ࠷ॳͷϒϩοΫͦͷ··ʹɺ࣍ͷϒϩοΫͰHTVC͠·ͯग़ྗ͠·͢ɻ
ͦΕʹΑͬͯ͜ͷΑ͏ʹ͚ͩյΕͨը૾͕ੜͰ͖·͢ɻ
https://github.com/makimoto/rubyistokei/tree/glitch ͜ͷϒϥϯν͜ͷ63-Ͱެ։͞Ε͍ͯ·͢ɻ
def show respond_to do |format| format.html do # snip end
format.glitch do data = open(IMAGES_PATH.join(params[:id])) data = data.force_encoding('ascii-8bit').gsub('a', 'b') send_data data, type: 'image/jpeg', disposition: 'inline' end end end ͪͳΈʹ3BJMTͰಉ༷ͷॲཧΛߦ͓͏ͱͨ͠Β͜Μͳײ͡ʹͳΓ·͢ɻ protip: Case in Rails
Wrapping up ·ͱΊ·͢ɻ
Glitch is quick and easy Glitch is useful for web
applications (JPEG is good) ͱ͍͏͜ͱͰɺάϦονૉૣ͘Ͱ͖ͯ؆୯Ͱ͢ɻ ΣϒΞϓϦέʔγϣϯͱͷੑߴ͍Ͱ͢ɻͥͻࢼ͍ͯͩ͘͠͞ɻ You can try it!!1;
The Pragmatic Glitch one of lightning talks in RubyKaigi 2013
| 31st May, 2013 Shimpei Makimoto https://github.com/makimoto https://twitter.com/makimoto