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Exploring Scala Tooling ecosystem
Jeferson David Ossa, Colombia
Friday, June 14, 2019 · 3:12 p.m. · 29m 00s
We are going to explore and compare some build tools with special focus on LSP/BSP implementations, IDEs and text editor support. To help the audience’s judgement about the tools that are suitable for their particular needs this talk aims to get attendees familiar with terms like SemanticDB, Metals, Bloop, SBT, Pants, Bazel, Ensime, IntelliJ IDE, Scala IDE, Dotty IDE and other honorific mentions.
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Transcriptions
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uh also went into two or the outdoors i consider just so to the to the
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next season especially in scallop they have been doing great will likely to to is yeah
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four make a a sour the weather puts our labour is still like by they
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so um as you probably know that all our experience around in a certain
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programming language can be greatly affected by the two links at that we work for
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um this can be there was the adoption or certain language or make it
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tool is the climb to to what we circumvent it
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so these by uh eighteen o. two two taking into account all the tunes around in these
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uh it's colour community is ah important in and that's this one i went to to to
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this all to to create such awareness in in the late is ah
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initiatives around in at the twenty consistent scatter
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so ah every day we used to us for a bunch of different
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chains and the more common last sorry latina comparing our code on testing
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but we have a a lot more to have things to do yeah and we need tools for it
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and and do we care about this suits because uh this source for
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the companies the capacity to cry input our private to be pretty team
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in regards how much time we need to to see you at certain was so it
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and how much time is taken to see feedback from the compiler
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this resource can be either our call been compiling the winners been push
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it ah to see errors one in that conference for the compiler say
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and also we we want to lose that can be a lightweight and break
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summary node to adapt and embrace our part to clear what clothes wherever it's it's
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it's no i'll uh to the forces to learn something new uh i boring certain different way
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so also this would be one it's to make as fast as possible
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and to show was their feet but as soon as they get it
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and this is how there's like the the feedback cycle for from my tells
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and here is the the cycle for
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the diagnoses for the compiler errors are ones
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uh and stella have been and some voice improvement with the tunes the tools uh surrounding the language
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a particular sound the last year or so and with the abduction the language service protocol
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this protocol uh was police absences thing but my purse out uh initially for missions to your
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code and some then can mean a i brave significant traction to to a different language programming language
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i know uh on this fair to the brim programs uh i'm working with this protocol
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um this protocol east means to define and
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standard communication between an eight or or ideally
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and and then we say but that that provides an language features like how to complete
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ah but with the nation or or final the references to to a certain simple
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the main idea behind a speed is to standardise this yeah communication between um
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our editor or whatever it so we choose to work with and the the language that i we are working well
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so this language service and wins right process for
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our editor and there is a communication and ah
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oh where additional pieces which is a a synchronous communication that can be also concerned about so
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in this case the client meeting the our particular eight or is going to to sane
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and this sample replace from well add a
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user actions this a conclusion can be here
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their case l. o. when we save the file
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after that we are going to get feedback about
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the actions that we're and typing in these it or
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so the coating about this protocol is that can yeah
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yeah there for different eh tested it or we are going to happen ah it's
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does one point to be able to read reviews or
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uh the different tools for different editors and ideas so
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this is going to pose a the ability for the tune
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outsource tool to make yeah you bring changes we realise our our
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particular changes in regards that the different editors that it's it's
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so it is very him in this colour on the east side we now
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freeze implementation by you and the others have we was for this call
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oh no we got a differing implementations in methods uh
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that he is also cause winnable teen a language servers
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for obvious go and is using as with you for the compilation process
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um foreign as witty scenes version one
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week are also uh i just the
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so but that the c. can communicate with different editors and ideas
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and we also have been seen that that has a base integration it encourages me is cool
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uh they were because they they trees and ideas that are right now supporting at this protocol recap
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uh the this colour pro going in there now you better since so uh for uh the today
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a he was a also um work being done in in eclipse yeah
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the uh probably discordant them at your editors that we're using in this community
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so oh i'm not going to talk about are you made our
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methods and uh and then uh at a couple of build
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tools that are either implementing it escape or b. s. p.
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so in the region it oh oh this metals prodded bars also base
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oh um they well uh reading by the light because for b. s. coat
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note the this implementation or a of this language service
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e. u. cups a redo this an amount of features
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and mercilessly we with the we will tonight their their sense of this kind of
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and is also implement in the s. p. we're going to back about this be in a moment
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um uh and just and will forgive or the compilation
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on information being uh give us feedback as soon as possible
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um i'll let us can integrate with them i just editors and that the disco eight ambient and supply
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and the good thing about this tool is weak up ah an address
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you know the common calm place uh about the i. d.'s in progress indexing
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when especially when you start going in a new project each maybe a less code base
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and this indexes process can be in an hour okay me
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for from calling so our our attention can be despair and
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and we got a pretty meaty lower because of this process
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and also nobody i this a consuming too too many resources
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our in our machines interns on step use cycles and memory
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so this is the the main gonna be had the these methods yeah for it it's the
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seems the washroom point five are are we
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kept a ah more features in my tears
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and sends a week up this room where a highlighting inspiration
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so we got kind get the type uh uh just to to move
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over the this certain expression that we had to to evaluate
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so uh the cursor moves on on this inspiration yeah we had at the
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time and it or on also the the simple chip network you would want
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we have also a more rubber school competitions
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um when a mattress construed this and i ran
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to these cases so for overriding methods of or
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or to create a subset par matching and also to to make import
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oh oh that that's symbols that are not cool reading seeing in this co what are the of this particular fact
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i'm not letting the this was really is uh this week
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and the dispersion letters that was for when you
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i'm not suppose you will permit us to integrate in out of the
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matting fashion we other way to lose or a great then maybe i mean
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so i if you have any trial midterms when is between
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now what's in the same way for the so there be tools
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they also update and they didn't impatiently brought for the latest version
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and maybe what major improvements for be a scroll any integration
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i also it's possible to bar with methods with a b. s. co ah extension that
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and those two to war him by programming in a in a remote
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that fashion uh this this it the same way that would also works
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ah another two that is more for for the two imposes
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uh it's called semantically rake in um twenty the big is
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uh there s. came out for for this month information about local
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uh they can more the uh in many differing in scallop features
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uh that is really one for uh w. to the development of of different tools
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and we can uh can generate this information via at compile probing
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and this information can be persisted a sequel days or or
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even parts will uh the plane then on the application here it's
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an purses in this information doesn't you know choir uh at
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our wedding compiler so it can be very for us to
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to analyse this information and un for right
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now support bases and this is screw this size
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over up of terrorism until a. p. i. for us to
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to sherry sender information between different tools uh we are
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using that compare you know oh uh without the need
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to to why the compiler internet in the same way
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that a thirty day that's for for this kind of really
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now say um uh the the base summer protocol uh
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this the the worst thing in the same way that it's
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p. yours is meant to to to to create communication between
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the boot the b. l. tools and and the language servers
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so in this way uh the play is for for for b. s. p. are going to be day
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the language surveys oh meaning our it the torso i. d.s and
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it it does enable a completion alley team ah for the developers so willing it's a supporting
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different too isn't this in time and communication uh in an honest way yeah about the compact
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the compiler that you had been use and so this was
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integration we discover too and also we were able to um
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and one particular implementation of this protocol is low
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um this is al abuse or words to enforce for this column and ah
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right now has a support for for all the major
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more common use be to to in this kind
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of language i mean it's pretty neighbour graded and need
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um because integration for the scallop rubin in italy date
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and also works with methods uh which means that you are unable
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to to use blue and with whatever it or that metal support um
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they are
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really cool to see about who is that is keep the comply or what this means
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that everything that they are compiling they are going to catch and we complied side effects
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so they can was this kind is going to lose to the
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below city or the compliance i put a uh this also is
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happening as witty we sink which is our comparative to to keep
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at the instance thought about it in as witty is really easy
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to to get these compiled code and doing uh i willow oh oh
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crane in another instance of it to the t. v. but do have a only one instance
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that isn't for lice uh allows you to to keep these eh
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the compiler coat at the at the end you are going to
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to have a a and it's the accompanying times that into twenty times faster
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i uh this version one point three one little
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wasn't really it's uh the last week writing um
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we'd uh the sentiment oh really cool features like company the duplication so now the
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server is going to catch differing compilations uh i. e. the is the blue the pace
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the another request for compilation has this saying uh
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compiling side effects that a previous one is not
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going to two to three get a compilation process again
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is going only to this meaning that you are going to have only one compilation
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another you know feature that is in this version a week at compilation isolation
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which mean in i possible concurring it's value for the flying and i request a tableau
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uh i will is no longer to crater at showing as they are they are going compilations
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that you can create this very easily week
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and signs it maybe the i. d.s requesting that
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a compilation or find say and you are going to is as where at the same time
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so it is going to create a concurring stay in the survey about the chair
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for this the the state for these a compilation process that going to be isolated
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so there are not waiting longer to to get a we're air was i thinking about this topic
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so uh also uh but uh i've seen connor traces of
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power so you are going to be able to to trace
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ah you compilation process that and see if you can't fool
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and you you you be purses uh according the the matrix that you're going to see
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ah knows these um you seen i'm a night which
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is a very cool no way before it's kinda language green
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uh and once you press a different features the this
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colour um where yeah the saying have a digit uh on
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in up so perverse card sorting and the g. d. k. a. nine nine eleven
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uh another news yeah up in august uh build tools in is
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pretty we got a really is mine point three uh which is
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really faster so it's this is integrated over about a crucial integrations meets each
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uh maybe library manage it would yeah just like i'd be um
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but this is completely right in imperious gotten um allows you to to
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to create padded down does for all the the pen this is that europe and also
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had an improvement in regards to the the cluster or minus meeting and they uh your process
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ah no this section is about a couple of it is
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uh we had a different options uh maybe one of these is
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a a bare feet for certain particular products but
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it is is good to to know the the seats
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and where may i be yeah the the trade so we used to bring it to us
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ah the press one only use c. v. t. a. which is
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i'm focus will tool and this is an alternative for for it
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but the the main difference these these two um out of the
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to us for a situation to the t. v. and method indications
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and supports a premises the sane a feature that that those it's uh it's pretty
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i'm also hot uh bernstein i'm sapporo
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for for for the to compile a um
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these things to to keep you in control uh as the the task your uh are more simple
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and and even the the basic code for this with tool it's
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is quite simple to to understand so you can't get familiar great
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how does in foods yeah works internally weed out yeah too
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much my d. for a for a uh from the compile ever
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no two uh is made uh this is by layer how yell and
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this is the main difference for this tool is that he's
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ah here's a poem uh or the does that we have the functional programming
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um so this we still can be even faster that is pretty percent of cases
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and it's for summer and user to in the sinai usage you have waited for media
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we cal uh upon shot program works 'cause you in the and the this will tool is
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up to your functional program uh sure is that i post a by late
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uh oh regards this topic is is worth to to to do that
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for different scenarios unlike mono ripper environments and that we
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really large code bases we had at the tools like pants
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and this will um to to manage the anchor a really
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fast and consisting we see in such as uh now use
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and suppose service up in communication and to
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you to paddy and the pens your solution and
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but and also the place uh inference for this so scroll
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to to manage uh dependencies and they impose in the base coat
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for for this in a scenario we vote also base or
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that you watch uh
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a tool that was use a internally in
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google by the where where was our principles um
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this is for it to to help with this will be is that are really really fast and
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also allows you to to create is on the
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output of these million forces to grace or ten
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guaranteeing is that the u. b. i. it's great interest that
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you are going to need to the page your application or
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oh or or also to to measure how
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well a differing like ornate so uh this kind
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of things to to the speed uh and even more who you you you been process and
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is also
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use very hard uh i'm catching oh oh it is that they're going
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to be the output or did we imposes so it with this mechanism
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it's going to take advantage of or because in techniques to make these
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b. is even faster uh as you reproduce every time in new development cycle
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so as i rub up for the different problems and initiatives
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that we are going you have e. this coloured tunic a season
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uh
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for for the tools that were we mandate or uh you
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know uh to to choose and it worries about a personal thing
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but uh we have um initiatives like the s. p.
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to to me they they they how to use the two routers yeah work even easier
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to to accommodate to this particular areas that we have
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ah for example over in the trends for the nazis combining a uh
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uh be server light blue uh and made that it's uh we can get an improving in
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our perl t. v. team in regards their the this this bit by cycled i when to that
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um the quilting i i'm not a instant
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qualities in different companies can know allows you to
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to create a pile and we these things added they i
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don't know maybe no feature i uh i had a experimenter features
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well the good thing is that this the distillers are also practical that
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you can integrate it to like in the person of work flow at these
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and you're not going to to impact the the rest of p. o. or whatever
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to their c. a. c. d. i know that you make at so you can
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um take advantage of all these are improvements in regard the tuning process
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uh the spice whatever yeah politics that you are surrounded by
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uh we had a an additional beings uh we all this information and even more uh
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the spring that's where you're going to say so thank you very much
00:25:52
but
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i
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i i
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oh
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what's okay one a specific questions and just a speech he ah
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so he oh
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c. s. t. or is this just to
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speak to you or to ah specific cues which
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which is good for us
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he someone just as much as it specific
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yeah i mean i mean the the whole race is
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mean to to to create a new uh even faster is
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pretty uh i i try i read a a sack quite faster and in august for someone to the big i
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i'm not sure whether eighteen is is more pain to to create easier integration with an
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other tools uh also to to integrate with luke eighteen but i'm quite sure of that
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oh cool thank you yeah uh_huh
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the this meant to be split must be to use both making it easier to configure the computer program
00:27:45
mm previously if you like statistics you had i'll talk so long section of contact
00:27:51
that you had to copy pasted the builders pity and everyone copy paste the same config
00:27:56
no you can just see in a speedy i'm supposed to be able to construe
00:28:01
uh_huh and you save a lot of classic uh_huh that's that was the discipline one point three
00:28:07
uh_huh distance you question which most about reducing overhead of config
00:28:17
yeah yeah you don't have to copy paste as much on people which
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is good and um and it does that c. d. falls directly like so
00:28:33
uh
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no i don't think that you didn't didn't do this was just a lot more can be done um so i'm very happy to see it
00:28:45
okay thank you
00:28:49
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