Steve Swing steveswing
huntc
/ server.scala
Last active
December 12, 2017 04:45
A complete server using Akka streams that reads some source, batches its data and then publishes. If the data cannot be published then it backs off with a best-effort of sending that data again.
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| val (recycleQueue, recycleSource) = | |
| Source | |
| .queue[SoilStateReading](100, OverflowStrategy.dropTail) | |
| .prefixAndTail(0) | |
| .map(_._2) | |
| .toMat(Sink.head)(Keep.both) | |
| .run() | |
| StreamConverters.fromInputStream(() => this.getClass.getClassLoader.getResourceAsStream("sensors.log")) | |
| .via(SoilStateReading.csvParser) | |
| .merge(Source.fromFutureSource(recycleSource)) |
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| // These lines go in ~/.sbt/0.13/global.sbt | |
| watchSources ++= ( | |
| (baseDirectory.value * "*.sbt").get | |
| ++ (baseDirectory.value / "project" * "*.scala").get | |
| ++ (baseDirectory.value / "project" * "*.sbt").get | |
| ) | |
| addCommandAlias("rtu", "; reload ; test:update") | |
| addCommandAlias("rtc", "; reload ; test:compile") | |
| addCommandAlias("ru", "; reload ; update") |
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| % sbtx dependencyGraph | |
| ... blah blah ... | |
| [info] *** Welcome to the sbt build definition for Scala! *** | |
| [info] Check README.md for more information. | |
| [error] Not a valid command: dependencyGraph | |
| [error] Not a valid project ID: dependencyGraph | |
| % sbtx -Dplugins=graph dependencyGraph | |
| ... blah blah ... |
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| # change modifier keys | |
| # install brew | |
| /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" | |
| brew install mas | |
| mas upgrade | |
| # core utils | |
| brew install findutils ssh-copy-id unrar wget git hub gnutls gnu-tar trash fzf |
anonymous
/ Haskell
Created
October 7, 2013 19:22
Comparison of the straightforward embedding of a basic tenet of category theory in Scala vs Haskell.
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| yonedaLemma = Iso (flip fmap) ($ id) |