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All the fancy things flexible dependency management can do
Alexandre Archambault, engineer at the Scala Center
Thursday, June 13, 2019 · 4:46 p.m. · 48m 32s
We've all used dependency management from our build tools. Yet, it can also be useful in many other contexts. In this talk, we'll review things dependency management can help you with outside of your build tool, like: mitigate dependency hell for your users or get you straight out of it; make your applications more dynamic than ever; help you package, distribute, fetch your applications or those of others; fetch, launch, and manage CLI utilities, full fledged or distributed applications. Required Knowledge: Having some experience writing Scala applications, in production or as an Open Source author. I'm the author of coursier, and almond a.k.a. jupyter-scala. I've been using Scala professionally since 2013, mostly in adtech companies, and I'm now an engineer at the Scala Center.
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okay uh so high high around um so i'm acts like somehow actionable
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and so i'm like yes or of a course a which is going to be
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the subject of that took another island which was rejected it took a just before
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and so right now i'm an engineer discuss centre which
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is a non profit base here now than i did epiphany
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uh and we walk mostly on scattering and zero i walk um more on the course yeah
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which uh i'm going to talk about it now and i want which you heard about uh to just before
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and so the subject of the talk is a whole different things you can do
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is fixable pontiac and and uh and that means it's going to be adequate course yeah
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um so closely you couldn't wait it's um it would give you these products buzz over here
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um so you may already have seen them enough if letters
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the project where to see it's between of course is never
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um hum you or uh if you get well i should try
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that i'm as busy was real i mean one of the one
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of its freeze candidates uh you should have seen discuss stuff and
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so um i i guess most people know courses shoes with pity
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uh you get a course he was not really meant to be used from uh from
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all the tools uh i mean i i at its core course a a result library
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meant to bring a depends the rescission carry it is to existing applications
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uh and and and i mean the the one that
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limitation one of the reason imitation of from useful to record
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say is that i think there are some of the
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things to be done with maven differences within the percy resolution
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let's let's i the auditor's and and so that's what it's talking about
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so the band um first we are going to have a look at the new at guys of course yeah
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so a new new ways of using it will look at
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the new high developed i i'm not which uh should be to
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i mean which would be a should use if you plan discuss here in
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your applications will have a look at the new uh directly i of course yeah
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which is uh basically depends when it depends free or low for every with a more extended okay
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we do have to look at it to p. of course a which is um
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i mean you know courses should become the diff with fancy was over in a city
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and as busy that not use any of the other itchy eyes uh that's uh did you get a. p. i.
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force it uh uh that's easy to use is and it's interesting to
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have a look at it um because as a as between us or
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if you want to squash the humidity a wooden you won't be able to i mean
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even in the upcoming is busy once we go uh the course directly
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i will not be around you really only be able to use crochet
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through do digits it is u. t. a. p. i. s. o. will look at that and
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then if we're not written schedule i knew quickly discuss some new uh enterprise features of course yeah
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and by that i mean the features that i think i mostly use full uh behind company words
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like a six tool work mostly with a private maven repositories or
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too big and things that are useful when you have large debussy graphs
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which i think is something happens more in product or rip uh sorry um
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rotten thirty cons and then we'll have a look at a new
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commands of course yeah so we look at the new install command
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which arose twisted applications with just an idea so basically you really
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be able to do something like a course installed this kind of format
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to just is target scuffle that are um which should be able
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to something like quasi launch the to ripple to launch on the fly
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the latest version of digits you ever so we ever get that and then we'll have a
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look at the new published come and of course a good says in new new and somehow
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experiment are common um so what this common that's it is that it proposes to take
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tradition outside a lot of yeah bill tool hands and on that that from i say later
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and one benefit of that approach is that it it's a and interest
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to to to to have i guess a better you x. for provision
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a little bit better at and when your data system audible tool contest i think um
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and that's the we'll have a and then twenty no so we are going to write a small scale application
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we are going to produce it with the cause it was gone and then we are going to install it
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with the courses that wrong and uh at the end of the dock uh i mean i'm going to sell it for
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the concert on but you should be able to instead and
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the application viking to write with the question second and okay
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a successful update or um okay so the desk or at the
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beginning of this year course they got a new kind of h. i.
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uh so the the the the good or the tape yeah is to be a
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a simple to use as the cell array of course it while not compromising purity
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so what do i mean by that um let's let's let's have
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a look at the small example about going to fetch some jobs
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uh with but sitting there guide to to compare uh so at
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that that we have a um a second also we are affecting things
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reflecting the jars of this dependency we ask for the minute fact we
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ask for the source job it's a particular example we had this ripper story
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and when we run that command will get a list of files which is the class pass of the tenancy uh we we had
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um now if we want to do the same with the with the a. p. i.
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o. we basically have to provide the the descent inputs so let's do it step by step
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so we are fitting sings so with the k. which we create a fetch object here
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uh so this is using a uh just recorded a button no
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we auctioning this course to change some parameters and uh of course
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uh it's mythical returns a new instance of effect object is avoiding each other um
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and the first method which call is uh it wasn't even when the
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facts we ask for literature talks we ask for the also some jobs
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we had that extra rotisserie we had the dependency and when
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we run that we get a sequence of files and so um
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um yeah so um that the that think this thing is as there are when you
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fetch sing this way i mean fitting artifacts this way of uh has a lot of inputs
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and the a. p. i. urges you to change colour then if you want to so here
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we only touch a few few parameters and we write a lot of and and through probably does
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like a cash acacia unlike the tentative of six in cash like the not the number of uh
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makes a number of steps the resolution um but if you want to change all the inputs
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and we uh uh uh um yeah if you want to put right explicitly or that fetch
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going to use uh you can um now though so that that's what inputs and for the
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but what's funny good results or she or i call the run method
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so that means that runs the resolution in a synchronised fashion uh so it's not that pure and
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but uh the thing is in that good example
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genocide affecting call is the that run cold here
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uh and the good news is a directory as an is that you can call or if you want to do things uh
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not it's okay not to synchronise fashions for example
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if you prefer to get a result screw feature
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or you can just go sure and you get a good
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feature of a chicken suffice if you're going to i am not
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you can too so uh just called are you into the future and run
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and you but before we are going to get results wrapped in the task here
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so here task is um we're not there is and i humid from course yeah it's the one that should work with it
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and but thing is a issue will to use your own i another you can
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to uh because that could here is not tied to particular are uh i am not
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and it it to raise and that classes uh course has its own sink that class for that particular
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and if you have the right type class instances uh around you can use a g. i. another choice
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and so other or uh i think we have the best of boss forms with when i tell if we want to specify or what
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i
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a selection yeah at some place right to to get effect uh no no i i
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i i uh yeah just semantics no no no i yeah
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um because uh yeah with that guy with the vessel boss wants uh if we will just discard input
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run sings why you can be a really ref refresher different items once we can if we just
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if you want to shock a wheezing ordered shorts and uh want
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to run sink things in a sequence fashion uh we can to um
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okay so uh i guess that if you plan to screen productions you should use
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yeah you okay i am going to um that's got that in details so this is
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basically you can of could we would have to write if we were to do something with the from a spirit of course it should look to the
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reading of course yale year ago you should have seen quite like this in
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the in the real me um this just is basically basically that's the same thing
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so then you pay is much more compact i guess and the last is a rotary pitfalls in that particular example
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and to have something that works we have to something like this which i actually uh it's quite secondary to and
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the end of it p. i. takes care of or uh or that for you so you don't have to use discussing
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um because it was for the height of a. p. i. uh now uh course here are so that uh jeff i. p. i.
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uh so the goal of that actually i is um into you have a very uh to have a contract
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uh and very stable apply within the
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differences uh so um but the the the
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and this and that we have to think it is a test sure but uh to hire one uh
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so basically which is that so this is this a separate okay
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to separate uh the fancy and uh that didn't see shed course a sweet and that
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course the and also the scary so then we have a good job advances version rubber you was not differences
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uh that is able to do some of the things that they had a lip yeah it has to do
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um and the colours of the p. i. is maybe to try to review or some job is last week's course yeah
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but also other contexts is gonna wear this can be useful for
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example scuffle lattices careful not dynamic what you're able to fetch differences
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make french whatever of scuffled fashion on the fly and you could use that card is that it's it's it's on walk around
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um i'm night could use that to election when you run its course she is in the class class
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uh i'm not sure that you see and it's a problem uh be sure to use different version of course a lot for
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as well if i want to do a question them yet i can't um and says she worked is that like with uh
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i could do request in writing and um yeah and to to
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could you use that to like that you want to get some impart
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to you uh get it is it could use that apply to load dances
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okay so we soon to hide reply when you should use the
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directly i which can be useful is that in some context and i'm
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not a that's a look at the the subject one that was
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written specifically for as easy as with citizen we're called adam course yeah
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and it's basically the the one you will have access to we should write as to plug ins in the future
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so to just understand where and that apply comes from uh so we should have a
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look at 'em and i thought that the
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button is between the city density one uh
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as a as a t. v. uh started to abstract away depends he reception in the
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newark yeah yeah and so a new a new chip you'll hear a difference your assertion
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providing a dependency rescission instance which basically amounts
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to have an implementation of this interface here
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and uh uh so giddy is the issue you want to stop difference reserving
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is busy we just uh give it an over a diffusion of this key
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and uh be choose whatever defensive position and stance we
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give it and now uh so that that glove approximately
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think bit more than a year ago and what happened that is uh so that they were they they were some
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it very some is that some users that warrior to use that and and two people
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tried to gets course implementations of the interface we saw just before the difference reception interface
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and um so i i think think them here so uh the um the first item twelve by you're not they don't fit the
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second one by on try to on trial before a as soon
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as the basic ideas topped divorcing which and the the preschool sheathing do
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differ depressing reserve or in the upcoming is busy once we
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go um but uh yes there are approaches suffered a few issues
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uh like basically is uh these were of blocks light approaches 'cause it basically started
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from zero to right across implementation of the plan c. research on which um and
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the problem was that is uh that there was a lot of effort that went
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into it to begin of course to to what your as b. t. and quasi correctly
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but a lot of parameters to twelve just become bus and this approaches where basically is throwing away or that
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for something in between you and the result is
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a sings based on this first approaches were um
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well not on par in terms of features with that particular and of course if there were a lot of
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comics twenty doctor just you can like is working with
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these initial approaches and so to find approaches um but
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is that with course leading to do it for difference here is over in
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the city is a head as between of course she was retracted very carefully
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uh so that's a good uh so that bits of
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it were extracted twin you mature and of course if you're
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i'm not the pentagon's directly you turn it depends on the library management module of a sweetie
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which defines that interface and the due to its data structures and that um
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and i think that that or it was possible to write a depends rescission
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interface implementation uh on par with the former is to begin of course yeah
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um so that was the first step and the the what was that two more steps
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before writing course to become the difference here is around in his weekly which were um
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so the the first one was um to rations of the atom course a module were
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actually published so understanding close to here and there's another option and of course a shaded
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uh which basically says course a units with templates crusty each for names it stresses
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uh so from an external standpoint it's as if that mature she or an inquisition did
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uh does not dependent on course to turn it depends on as you to stuff your um
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and uh let's see the as to plug in of course he was or return to uh
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and the remaining of detecting of course it was written and uh it was a reason to use that to you to
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share the fancy was action and the the reason for that
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is we get very lightweight plugin basically almost only touching this guitar
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um and at the end it that plugin was much copy pasted in the city
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if the t. v. depended the undead inquisition to share and that's
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how we get of your courses parts in a in a city
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so it it does not depend i couldn't coarser isn't depends on that would
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you share i don't causation did we each and birds and which sets coarser
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so that's it itself or you as quick as bitter gonna cells cannot access course it yeah
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they're actually you have to use that to share defensive position to get the currency reserves interface instance
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to run the receptions and yet um so that's how uh the so uh
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a consideration the different patterns are written as beauty and
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i'm going to require the jump over does um yeah just for that i'm very briefly um
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you know that the uh question now as some equivalent of the district conflict manager already
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the offer was he likened to strict to to ensure that uh no difference he mention is but
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um i wanted to to tess here but uh the
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rules are way to twenty four some constraints and the differences
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and the fashions that gets affected your assertions
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and also corsica now read some settings from glorifies
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uh this may change a bit between uh the mixed step
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there is of course a but corsica now read for supper conscious
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from the next interface it couldn't previously when you were using this year i of course yeah um as
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we can read some of the settings like to to support for what we call a maven me was
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segment maven as possible discussed if it's an issue of our elements
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added money you have private made anniversary that you know me worse
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never central or you may what's your rep as we to be used
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instead of some tar and some things here a low to to do that
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um okay so now let's have a look at the new new commands of
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uh of course a uh so the first one is the in second um
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so the the motivation for for that command is a um issue is done for example is careful not
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you may i've typed come on to like this one of course um
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subsequently would stop do scare how much direct cotton it's
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and this generates a small lunch or forced gonna fall out from that discussion
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of styrofoam not um it's a or so uh i personally often run tonight
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with the come on just little here i do concede lunch and i just passed the the maven cutting that's a night
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uh i guess german class and this fetches the
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classes on a night uh classes that and runs it
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so that overall destructive you runs specification of that uh
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so these are actually quite confident with twos start architect run
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applications and and petra issue are just sort of an application
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is for you to uh i mean not to aft generates
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push somewhere other controls for your application you can just to push things
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as libraries and the course you can take care of the rest uh yet
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this is a i think a bit cumbersome for end users like uh i mean the the disk ones are not
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so why not the charger uh how to remember um and
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i i think we could do better and that's what the insert
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come on that's a yeah and i think this is just a first got on at ten am it seems even get cost
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with more advanced applications so for example the other commands to render the to ripple was course ranch
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i'm just a concurrent middle um so we have to
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specify some extra large up approaches sure one from the t.
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v. screen for middle with one referencing some other properties sure
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and so that there's no way we can remember remember that
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and and started a a separate was to sings as simple as a presenter for the director
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just course in solitaire open um that's who
00:22:38
is still binary for that you're carrying a path
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uh but if you just want to run a tradition with that in something it you can just
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do things like course a low interest careful not and if you want to run specific version of it
00:22:51
just at it score and the russian and that says a
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it's going to fetch a that's fiction and rest and run it
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um okay so let's have a quick demo to a show you and much else how high talks
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okay
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okay so i'm i'm and within weeks earlier as hum user
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okay so um to use case and links described here is uh i mean
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thinking once now your way on the question second one is useful i think
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it's uh when you e. how do you write you end
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up the new environment with no on knows nothing installed knows
00:23:46
cut to lose most yeah that's got to do this turned back i'm sure we can never java
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but we don't have to be to you wouldn't have course yea we don't have the ultimate night uh
00:23:59
and and so the questions that come on arose to uh
00:24:03
quickly in cell or the source um scott is talk um
00:24:08
so uh first we are going to install course itself uh so
00:24:15
here i'm floating around question sure but uh to suggest it i
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you said question i um i get small control here courses simply
00:24:26
that's because the standard and i'm and i'm what i'm going to
00:24:31
do is i'm going to use a course a with the temperatures have
00:24:35
so okay yeah okay i'll in circle c. a. this is there is an instrument or command us so
00:24:45
i have to say it this nights going to work
00:24:53
okay so this fetches shoot it are the class paths of course itself
00:25:00
and yeah so this and start with a launcher focus to him a here
00:25:08
and that directory and it runs as that the detector is not in our past
00:25:13
so we're going to put its zero okay now i'm going to remove the temperature
00:25:20
and i of course you know i'm not death okay mister latest fashion
00:25:26
of it i'm not we of course instead we can install a few mortals
00:25:32
like it's still is pretty um let's install and no one night the to open
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yeah
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okay and so here and um the second fetches augustus of lose uh
00:25:53
reserve haitians and creates more notches for them into territory that we just put
00:25:58
it in our past now uh i think if they look yet at this directory
00:26:06
we haven't just for a night course to just you're going to use it and you can run that remote
00:26:14
oh yeah the strategy and we can types and it just have
00:26:23
oh
00:26:25
okay so yeah maybe it works um yes and it was for the insert command uh how
00:26:37
what happens here um how how does it work in the right much said um
00:26:43
when the when i installed the citations listed as peace intro at night the terrible that
00:26:48
where these names refer to is some just
00:26:52
some descriptions of these applications so i'm not sure
00:26:57
i'm just a description for linda to rebel and if
00:27:02
so room yeah it doesn't dependency that fancy for uh
00:27:07
i think that it's agrees or sixteen three so chieftain um if we tell
00:27:12
it crunch sings formation central we to to use to stop this man class here
00:27:18
i think this is not just full time and we tilted setter right
00:27:22
to between before running the separation a certain due to you is fine
00:27:27
with the with the with visitation sure um and now uh
00:27:33
where are our this just an descriptions how how are they are they dissipated and that was to to be
00:27:39
ten user you make them available or in the at
00:27:43
public address presenters are some vegetable had this address here
00:27:49
um
00:27:54
yeah yeah i'm been trying to them but uh okay um yeah
00:28:00
so i just address we have a justified here which describes as
00:28:05
i just thought occasions and i just so this examples
00:28:08
from the documentation question why two inches of exotic languages
00:28:13
so for example doesn't latin here and uh if we want been succumbing to is that we can at it
00:28:22
as a channel so for example i'm sure i'm going to stand out uh do justin five that we so
00:28:33
but to either as a source of just on the um the one
00:28:37
was so just before and now i'm able to do some questions and latin
00:28:45
um okay
00:28:50
some stitches to just have lessened and we have a just and which i'm sure didn't pass
00:28:59
okay i'm yet and so that's the simplest case and uh
00:29:11
and that's the korea second wait once images and this way it was more or
00:29:15
or just either i think it's a i mean you can put this justifies individuals
00:29:21
two dishes just and even some tar and the provider just to cut in its
00:29:27
the main can units of just just to the questions that come and uh for example
00:29:33
distant and here i you get course hick ups is added but who has a channel
00:29:39
and so do addictions things start before act redefined in the jar
00:29:43
of this application and this is this only see in this rip is very courses apps
00:29:52
uh yeah so in this room disappears we we have a list and isn't sure scribbling all dues applications
00:30:01
um yeah and and
00:30:06
um and want nothing to one nice thing too is uh this is pots net native
00:30:11
applications discriminative stuff and encourage them stuff so
00:30:15
for example um we can install a nutty applications
00:30:22
exactly the same way so what does that is uh here we have an application code cannot if
00:30:27
it's something that comes from and courses test says kinetic application
00:30:32
and it's just contained intimate conversation i was catching up published to move in central
00:30:39
and the question second fetches does just fits is the scatter to discuss
00:30:45
pass and run sedative and the ages from do you cannot to education
00:30:52
and so and he was installed here for this work fine agenda with and with um and the depiction sure
00:31:02
so if we look at what's uh what's consist in
00:31:09
and says uh agencies notification should my co executive member this golden and and
00:31:15
the fact and fried um and that's the same kind of thing with crack them
00:31:21
so it doesn't crash them example sure since is this the remote syndication this is the java
00:31:28
equivocation to have a map that just because the segments
00:31:32
uh huh and and we covered in description to it's
00:31:36
just an says that this is a credit application and sweden set command will pass and somebody of this application
00:31:45
to to netted image a tool of oppression to generate and that's very much
00:31:51
and so here yeah i'm currently i'm wasn't said to like i had the
00:31:57
condom home the test set and uh so we have an equal
00:32:04
kind in a true okay if we look at it
00:32:11
this is in its isn't it um notifications sure back or uh is committed
00:32:18
um and i couldn't or so instead of the front course itself but with the crotch
00:32:24
in this way so i'm not going to but that's the rubber run tidy because take so
00:32:29
maybe five or ten minutes or so but uh i didn't talks when you get question sure
00:32:34
a bit encouraged him so it's nativity starts much more are much more quickly and
00:32:44
consumption and the th just start but i'm going to change it
00:32:49
yeah okay
00:32:52
and
00:32:57
so um yeah so we already started as in seven different applications purchases kinetic patients kind
00:33:04
and stuff it was so yeah didn't and enjoy it here it's also supports the updates
00:33:10
like you can hunt considered to update a education's wasted and sing to check judges and
00:33:17
uh i've depictions for our changes it's going to check for new
00:33:21
versions of the patients themselves and is there a new sings eventually
00:33:25
between the raw generate the adventure um and yeah and the overall
00:33:31
this or rely on to corsica she does know of no get clone
00:33:35
likewise brew for example um this is only right and sings
00:33:40
is there from maven was really or sings available at a fixed writers
00:33:45
like um the fortified potential and sickest going on there is fine i mean uh
00:33:53
it is mad cash uh sings from even a person raise us things available at fixed on your hands
00:34:01
okay okay so that was for the insert command f. no it's a look at the british commander
00:34:09
so um but just a disclaimer uh um
00:34:12
hashing come mackinnon thing really is publish basically works
00:34:17
fine if you use the right tools for the performance b. t. fuses bits here really is
00:34:24
yeah there's a lot of stories around the tool and it basically works
00:34:28
sim with mail i think um the the makeup freezing walks reasonably well
00:34:35
uh so what the cluster based command proposes is a new new u. x. for publishing
00:34:42
something that does not depend on your little bits set something even tries to
00:34:47
on the kurdish that's in the middle to propose a better lyrics for it
00:34:52
so yeah the the idea is basically that uh
00:34:57
'cause agrees command instruments yeah we'll tool for nights initiative
00:35:01
it's uh it does it to build the right jobs for young and you're just in a temporary directory
00:35:09
and then uh detectors we take that and the provision then itself
00:35:17
and much there is a very rich takes a bunch of sources as project actually it can draw
00:35:23
something it can i just like incision and devotion
00:35:27
uh it can uh add missing checks and silence things
00:35:32
it comes or something constipation extension fashioning um and at the end
00:35:37
it can dry it's all of that to discussion so made anniversary
00:35:43
and tenders or just sings uh in what it has
00:35:47
to be done when you want restriction type of to binge
00:35:53
so uh let's have an hour and twenty know of
00:35:56
or that i am so i'm going to switch from voyager
00:36:06
i'm not using school here to um actually to get images sometimes and uh
00:36:16
just put is nicer it's okay
00:36:21
okay so that's the account i was using a month ago so
00:36:25
we should um because i'm sure um yeah and you have to
00:36:33
i don't read every to pass me to this okay um so now
00:36:39
i'm okay i'm going to read just medication and i'm going to start
00:36:42
from a template so i'm going to instill guitar it for that
00:36:48
which question sort of
00:36:56
okay uh_huh yeah so we have a detention sure and i'm going to start from this
00:37:02
stupid screen i want which is in the sky the contention issues can uh just care website
00:37:09
okay did miss
00:37:12
it's qualification no okay so good reason is project and we are going to use is
00:37:19
just i'm sure when standard uh just before let's take that it allows by running determined
00:37:28
and so this is um it's not the diff oh course you visited insurance is of course it has the potential
00:37:34
and so this was course it to fetch city from from the start to here we have problems was um just for
00:37:43
children shortages got quite often city isn't as if it's if
00:37:47
it's not do tissue you requested poisonous but it's to know
00:37:51
it's still question
00:37:54
so depictions winter and yeah so a lot and printed the one sure
00:38:01
and now we are increases so from that we're going
00:38:05
to use to consider is command um somebody for preach
00:38:09
we must betray source it's going to use the current directory uh we find that this it's this huge project
00:38:17
um and that we are going to present to betray
00:38:21
so uh so we are um uh so i created the uh to and i'm going to switch over to me
00:38:34
other work and um
00:38:40
okay
00:38:47
uh huh
00:38:53
okay uh so i i created the um throw away a good account sure i'm concerned um
00:39:03
called a sky this publish the movies you will uh and i'm
00:39:07
going to a user's account to set up a new benchmark and
00:39:12
so okay we're concerned pure with each other
00:39:19
so on them and doesn't matter let's say we are from switzerland
00:39:29
and okay so here we get a beach where account
00:39:33
uh let's uh which are pretty much uh we need
00:39:37
an object to something great going to get twenty here
00:39:44
okay um so what i'm going to
00:39:49
okay um
00:39:52
uh i'm going to be as willing to see the key but it doesn't matter because it's also week so work and
00:40:00
true he could and now it's compact with as ever
00:40:07
a window
00:40:13
okay uh_huh
00:40:22
and now let's have a user talking so quick and sex
00:40:27
i mean no that that's right publish yeah yeah 'cause you gauge
00:40:33
with our intercom sure sweet when scanned as a condition you zero
00:40:40
um we are going to one just air conditioned it's it's
00:40:43
on this cat is you never integration fashion zero one zero
00:40:49
uh okay let's do that
00:40:53
okay so night one this it needs and i've been shaky when it's uh
00:41:00
it's that it and i i click here and it's huge
00:41:12
and so the people can hear evidence once basically so we
00:41:15
translate speech itself and it makes it engine right to giles
00:41:21
of your application and then takes over each weeds or that was generated
00:41:27
uh i just some parameters socially conditioned the fashion uh and it pushes
00:41:32
that to be enjoyed because we asked for it to be too so
00:41:37
okay switch for the it it ranch is pretty each read files
00:41:41
from it it up with their of it and we can uh
00:41:47
you can check the results and enjoyed it yeah sure uh since the operation and now we are
00:41:54
going to or run it um so that the simplest way to run its right now it is
00:42:02
to use the full maiden cotton that's going to do that but then we are going to use this
00:42:07
the question set command so winds we published this addiction
00:42:12
just get applications yeah well it was russian zero one zero
00:42:18
and we're using controller comments scanner this provision was
00:42:24
able to to preach to disrupt history and standard text
00:42:31
yeah so we had this big purposefully to launch this application
00:42:36
so this is going to fetch ages of our petition
00:42:41
okay and yeah it run it and printed the could wander sure um talk now if
00:42:48
we want to it all users to do things like just courses to do you know
00:42:53
uh we have to write engine description of occupation
00:42:58
put somewhere to make an a and ask ourselves to refer to does just description to look into that city
00:43:06
we can have different command to generate some justin for application
00:43:12
so yeah so this is the john description of our application
00:43:18
okay
00:43:21
um and now we are going to uh to publish that and get up
00:43:29
i'm putting this here that's correct to come
00:43:35
uh considering the right um
00:43:42
uh
00:43:45
okay
00:43:47
yeah
00:43:50
that's good come
00:43:57
so we are going to create a and a smaller office to me
00:44:04
so
00:44:06
that's coming up
00:44:10
and we create a new file so perhaps the reason for example to
00:44:17
send it to read it and so we're going to define energy location
00:44:24
but with um can i have to get ditches and description had the
00:44:29
uh
00:44:32
it gets here
00:44:36
some putting this just and here let's come in that
00:44:45
and now i'm nine what we can do is we can uh um
00:44:52
we can add it does does an finer as a channel
00:44:56
as a source of just have to addiction descriptions let's do that
00:45:01
its course inside and the channel this now under under what your hand
00:45:15
uh_huh okay there are tons of there could like that
00:45:24
okay and now i'm going to a lunch yet actually
00:45:30
which is that we just in time to uh the appraiser
00:45:34
you just uh okay and um yeah and basically you can uh
00:45:39
get the questions are run this to comment here course instead for
00:45:43
a channel and then consider demo of course hay for instance bill
00:45:54
and um
00:45:58
yeah this and just run the application we you brought in
00:46:04
okay so that's it for the demo and uh for the talk i guess um
00:46:12
yeah it just to see every so a duty of course to new commands in
00:46:17
sun village um yeah so if you maybe we have to sample question or uh
00:46:24
for
00:46:30
how we could care for one question how
00:46:35
uh_huh
00:46:39
with him thanks for your talk just one question for to grab the m. t. v.
00:46:49
anything in a doe doe something special with your code or or with your publisher it
00:46:55
is cost here that takes care of everything and you just to cost yeah east order
00:47:01
that's the magic for me or yeah so i had to yeah yeah and they're right so to have this walk them
00:47:10
you you have to just to say that you want to write in which are in the application of the
00:47:15
application just and so here for example for the equal gravy an application i say that i will turn to type
00:47:24
and cry in that image and if you put that in the description a question
00:47:31
stole a says that uh you took for granted him on the on the only viable
00:47:38
and if it's there it to uh generates an assembly for the application sure get as apologise and
00:47:44
passes this somebody to to change that image and its image uh_huh gives you are not even sure
00:47:51
and you can also do a bit more than sings
00:47:55
uh_huh you can adjust some grudge m. parameters here
00:47:59
the from the classical yeah my description i'd assumptions to the teenage
00:48:05
i you press it to read fiction the descent fine donation hinton uh_huh
00:48:12
yeah
00:48:13
so uh if i mean you just have to say you want to type card yeah my and and that's it thanks uh
00:48:22
yeah
Conference Program
A Tour of Scala 3
Martin Odersky, Professor EPFL, Co-founder Lightbend
June 11, 2019 · 5:15 p.m.
8337 views
A story of unification: from Apache Spark to MLflow
Reynold Xin, Databricks
June 12, 2019 · 9:15 a.m.
1267 views
In Types We Trust
Bill Venners, Artima, Inc
June 12, 2019 · 10:15 a.m.
1569 views
Creating Native iOS and Android Apps in Scala without tears
Zahari Dichev, Bullet.io
June 12, 2019 · 10:16 a.m.
2232 views
Techniques for Teaching Scala
Noel Welsh, Inner Product and Underscore
June 12, 2019 · 10:17 a.m.
1296 views
Future-proofing Scala: the TASTY intermediate representation
Guillaume Martres, student at EPFL
June 12, 2019 · 10:18 a.m.
1157 views
Metals: rich code editing for Scala in VS Code, Vim, Emacs and beyond
Ólafur Páll Geirsson, Scala Center
June 12, 2019 · 11:15 a.m.
4695 views
Akka Streams to the Extreme
Heiko Seeberger, independent consultant
June 12, 2019 · 11:16 a.m.
1552 views
Scala First: Lessons from 3 student generations
Bjorn Regnell, Lund Univ., Sweden.
June 12, 2019 · 11:17 a.m.
577 views
Cellular Automata: How to become an artist with a few lines
Maciej Gorywoda, Wire, Berlin
June 12, 2019 · 11:18 a.m.
386 views
Why Netflix ❤'s Scala for Machine Learning
Jeremy Smith & Aish, Netflix
June 12, 2019 · 12:15 p.m.
5026 views
Massively Parallel Distributed Scala Compilation... And You!
Stu Hood, Twitter
June 12, 2019 · 12:16 p.m.
958 views
Polymorphism in Scala
Petra Bierleutgeb
June 12, 2019 · 12:17 p.m.
1113 views
sbt core concepts
Eugene Yokota, Scala Team at Lightbend
June 12, 2019 · 12:18 p.m.
1656 views
Double your performance: Scala's missing optimizing compiler
Li Haoyi, author Ammonite, Mill, FastParse, uPickle, and many more.
June 12, 2019 · 2:30 p.m.
837 views
Making Our Future Better
Viktor Klang, Lightbend
June 12, 2019 · 2:31 p.m.
1682 views
Testing in the postapocalyptic future
Daniel Westheide, INNOQ
June 12, 2019 · 2:32 p.m.
498 views
Context Buddy: the tool that knows your code better than you
Krzysztof Romanowski, sphere.it conference
June 12, 2019 · 2:33 p.m.
394 views
The Shape(less) of Type Class Derivation in Scala 3
Miles Sabin, Underscore Consulting
June 12, 2019 · 3:30 p.m.
2321 views
Refactor all the things!
Daniela Sfregola, organizer of the London Scala User Group meetup
June 12, 2019 · 3:31 p.m.
514 views
Integrating Developer Experiences - Build Server Protocol
Justin Kaeser, IntelliJ Scala
June 12, 2019 · 3:32 p.m.
551 views
Managing an Akka Cluster on Kubernetes
Markus Jura, MOIA
June 12, 2019 · 3:33 p.m.
735 views
Serverless Scala - Functions as SuperDuperMicroServices
Josh Suereth, Donna Malayeri & James Ward, Author of Scala In Depth; Google ; Google
June 12, 2019 · 4:45 p.m.
936 views
How are we going to migrate to Scala 3.0, aka Dotty?
Lukas Rytz, Lightbend
June 12, 2019 · 4:46 p.m.
709 views
Concurrent programming in 2019: Akka, Monix or ZIO?
Adam Warski, co-founders of SoftwareMill
June 12, 2019 · 4:47 p.m.
1974 views
ScalaJS and Typescript: an unlikely romance
Jeremy Hughes, Lightbend
June 12, 2019 · 4:48 p.m.
1377 views
Pure Functional Database Programming‚ without JDBC
Rob Norris
June 12, 2019 · 5:45 p.m.
6375 views
Why you need to be reviewing open source code
Gris Cuevas Zambrano & Holden Karau, Google Cloud;
June 12, 2019 · 5:46 p.m.
484 views
Develop seamless web services with Mu
Oli Makhasoeva, 47 Degrees
June 12, 2019 · 5:47 p.m.
785 views
Implementing the Scala 2.13 collections
Stefan Zeiger, Lightbend
June 12, 2019 · 5:48 p.m.
811 views
Introduction to day 2
June 13, 2019 · 9:10 a.m.
250 views
Sustaining open source digital infrastructure
Bogdan Vasilescu, Assistant Professor at Carnegie Mellon University's School of Computer Science, USA
June 13, 2019 · 9:16 a.m.
375 views
Building a Better Scala Community
Kelley Robinson, Developer Evangelist at Twilio
June 13, 2019 · 10:15 a.m.
245 views
Run Scala Faster with GraalVM on any Platform
Vojin Jovanovic, Oracle
June 13, 2019 · 10:16 a.m.
1342 views
ScalaClean - full program static analysis at scale
Rory Graves
June 13, 2019 · 10:17 a.m.
463 views
Flare & Lantern: Accelerators for Spark and Deep Learning
Tiark Rompf, Assistant Professor at Purdue University
June 13, 2019 · 10:18 a.m.
380 views
Metaprogramming in Dotty
Nicolas Stucki, Ph.D. student at LAMP
June 13, 2019 · 11:15 a.m.
1250 views
Fast, Simple Concurrency with Scala Native
Richard Whaling, data engineer based in Chicago
June 13, 2019 · 11:16 a.m.
624 views
Pick your number type with Spire
Denis Rosset, postdoctoral researcher at Perimeter Institute
June 13, 2019 · 11:17 a.m.
245 views
Scala.js and WebAssembly, a tale of the dangers of the sea
Sébastien Doeraene, Executive director of the Scala Center
June 13, 2019 · 11:18 a.m.
661 views
Performance tuning Twitter services with Graal and ML
Chris Thalinger, Twitter
June 13, 2019 · 12:15 p.m.
2003 views
Supporting the Scala Ecosystem: Stories from the Line
Justin Pihony, Lightbend
June 13, 2019 · 12:16 p.m.
163 views
Compiling to preserve our privacy
Manohar Jonnalagedda and Jakob Odersky, Inpher
June 13, 2019 · 12:17 p.m.
302 views
Building Scala with Bazel
Natan Silnitsky, wix.com
June 13, 2019 · 12:18 p.m.
565 views
Diversity and Inclusion Panel: Bring the Thunder!
Panel
June 13, 2019 · 2:30 p.m.
245 views
Asynchronous streams in direct style with and without macros
Philipp Haller, KTH Royal Institute of Technology in Stockholm
June 13, 2019 · 3:45 p.m.
304 views
Interactive Computing with Jupyter and Almond
Sören Brunk, USU Software AG
June 13, 2019 · 3:46 p.m.
681 views
Scala best practices I wish someone'd told me about
Nicolas Rinaudo, CTO of Besedo
June 13, 2019 · 3:47 p.m.
2707 views
High performance Privacy By Design using Matryoshka & Spark
Wiem Zine El Abidine and Olivier Girardot, Scala Backend Developer at MOIA / co-founder of Lateral Thoughts
June 13, 2019 · 3:48 p.m.
754 views
Immutable Sequential Maps – Keeping order while hashed
Odd Möller
June 13, 2019 · 4:45 p.m.
277 views
All the fancy things flexible dependency management can do
Alexandre Archambault, engineer at the Scala Center
June 13, 2019 · 4:46 p.m.
389 views
ScalaWebTest - integration testing made easy
Dani Rey, Unic AG
June 13, 2019 · 4:47 p.m.
468 views
Mellite: An Integrated Development Environment for Sound
Hanns Holger Rutz, Institute of Electronic Music and Acoustics (IEM), Graz
June 13, 2019 · 4:48 p.m.
213 views
Closing panel
Panel
June 13, 2019 · 5:54 p.m.
400 views
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