shajra

shajra bagel /nix/var/nix/profiles  
$ readlink -f /nix/var/nix/profiles/chroot/bin/bash
/nix/store/q5wfq0i6w4p6a7155p4hia6p3n8rk7aq-bash-4.2-p47/bin/bash

shajra bagel /nix/var/nix/profiles  
$ nix-store -qR /nix/var/nix/profiles/chroot/bin/bash
error: path ‘/nix/var/nix/profiles/chroot/bin/bash’ is not in the Nix store

shajra

shajra bagel ~  
$ nix-store -q --roots /nix/store/zr69y5131gwh9jjfpmrdbn17l30xm47v-bash42-028.drv | cat
cannot read potential root ‘/nix/var/nix/manifests’
/nix/var/nix/profiles/chroot-13-link
/nix/var/nix/profiles/default-10-link
/nix/var/nix/profiles/per-user/shajra/default-8-link

shajra bagel ~  
$ nix-store -q --roots /nix/store/yarb0fn7xgrby4a00q1r1iys2i3rl7sv-bash42-030.drv | cat
cannot read potential root ‘/nix/var/nix/manifests’

shajra

If you're interested in making great software by discovering the deeper truth of logic and abstraction, then this is an open invitation for your participation in our community. Unfortunately, most software communities are notoriously imbalanced, creating needless hurdles for people of various gender identities, races, religions, political groups, sexual orientation, and disabled communities (to name a few). Such exclusion services no one's best interest. So, we want to actively call for participation from anyone interested in making our software better.

We guarantee a safe environment where we promote well-reasoned arguments that lead to the greatest software we can possibly make. Unfortunately, along the way someone may make an error, or worse yet, exercise malice. We'll work hard towards keeping conversations objective and inclusive. Sometimes it's tough work, but we're completely invested in the process. If you feel a public forum has not served you well, please contact us privately so we have a ch

shajra

package actionstat.extn.pirate


import io.mth.pirate.Flag
import io.mth.pirate.Flag._

import scalaz.Isomorphism.{<=>, Iso}

shajra

implicit class IdOps[A](a: A) {

  def callNullable[B](f: A => B): Maybe[B] =
    if (a != null) {
      val b = f(a)
      if (b != null) Maybe.just(b) else Maybe.empty
    } else Maybe.empty

  def ?>[B](f: A => B): Maybe[B] = callNullable(f)

shajra

package myorg.extn.scalaz.stream


sealed abstract class Result[E, O] {
  def fold[A]
      (cont: O => A, done: => A, failCont: E => A, failStop: E => A) =
    this match {
      case Cont(o) => cont(o)
      case Done() => done
      case FailCont(e) => failCont(e)

shajra

case class ProcessMSyntax[F[_], MM[_], A]
    (self: Process[F, MM[A]], trav: Traverse[MM]) {

  def throughM[MB]
      (c: Channel[F, A, MB])
      (implicit
        uBindB: Unapply[Bind, MB] { type M[X] = MM[X] })
      : Process[F, uBindB.M[uBindB.A]] = {
    val substC = uBindB.leibniz.subst[Channel[F, A, ?]](c)
    ProcessFunctions.throughChannelM(self, substC)(uBindB.TC, trav)

shajra

package actionstat.builtwith.load
package config


import java.io.File
import java.lang.String

import scala.{ StringContext, Unit }
import scala.collection.immutable.List

shajra

A Response to a Response

Bob Martin wrote a blog article titled "OO vs FP".

Bob has a style of writing that makes it hard for some to see clearly his position objectively. In fact, his post is itself a response to a slide from another presentation arguably suffering from the same qualities.

shajra

If you don't know much about Scala, but want to get started quickly. It's by no means an guide to Scala or SBT, the build system for Scala I'm recommending for getting started. There's a learning curve to picking up both Scala and SBT. All I'd like to do is remove the barrier to entry, so you can begin your study.

I'm going to assume you've done some programming in some other language, but not necessarily work on the Java virtual machine (JVM), which Scala targets.

I'm also going to assume you have a Java Developer Kit (JDK) already installed