Questions & Help>Questions

How to cache the Elixir compilation on Travic CI?

#travis-ci
Qqwy

Qqwy

TypeCheck Core Team

How to cache the Elixir compilation on Travic CI?

We’re adding continuous integration to our application.

@sorentwo was able to give me some advice to split up the testing into separate stages, but the main issue: compilation time having a huge impact on CI-execution times, remains.

Currently, running the test takes about 20 seconds. However, compiling the project from scratch the first time takes a whopping 140 seconds. On Travis CI, this compilation is done on every test run, significantly slowing down the feedback loop.

I’ve tried to cache the compilation/build artefacts by adding the _build-directory to the Travis CI cache, but I’m not sure if I either made a mistake in how Travis’ caching configuration should be used, or in how Mix decides to re-compile your dependencies, because it is still compiling everything during every test run.
see for instance this test run

The Travis CI config that is currently being used can be found here.

3 comments
#travis-ci
5 1447 3

Marked As Solved

NobbZ

NobbZ

You have not added deps to the cache, so you have to re-download the dependencies again each time, and as you have recently downloaded them the compiler will recompile them. And as deps are recompiled, your own application will as well.

3
Post #2

Also Liked

Qqwy

Qqwy

TypeCheck Core Team

Ah, I see! :heart_eyes:

Awesome! With this change, any build only takes about a minute, rather than almost four :sunglasses:.

1
Post #3
sorentwo

sorentwo

Oban Core Team

Ah, of course, caching the deps makes total sense. In our CircleCI builds we cache the deps and _build directories using their powerful but highly obtuse build configuration. It didn’t occur to me to do the same for Travis.

1
Post #4

Where Next?

View thread on forum (has 3 responses!)
travis-ci
Home Questions & Help>Questions
#travis-ci
5 1449 3
Last post

Popular in Questions Top

bsollish-terakeet
Questions & Help>Questions

Checking if an enum is empty - Credo vs Compiler
Credo is smart enough to check for (something like) this: assert length(the_list) == 0 with this response: Checking if an enum is empt...
#compiler#credo
8 22889 6
New
albydarned
Questions & Help>Questions

Erlang and Elixir on Apple Silicon/M1 Chip
Hello all! I am typing this post from my new MacBook Pro with the M1 chip. I’m loving it so far, and will probably use it as my daily dr...
#erlang#troubleshooting
121 24599 65
New
pgiesin
Questions & Help>Questions

Ecto :database Not Found
This should be a simple problem but I just can’t seem to figure it out. I have a standalone Elixir app that won’t find the database. Dep...
#ecto#postgres#troubleshooting#ecto-migration
7 14214 22
New
_russellb
Questions & Help>Questions

Web scraping tools
I want to try my hand at web scraping. What tools/libraries do I need to use. I’m hoping to turn this into something professional so don’...
#web-scraping
123 19127 45
New
hariharasudhan94
Questions & Help>Questions

What is the best IDE for elixir?
I would like to know what is the best IDE for elixir development?
#code-editors
33 49503 23
New
fayddelight
Questions & Help>Questions

Installing elixir via asdf shows zsh: command not found: iex
I tried installing elixir 1.11.2 erlang 23.3.4 via asdf in my zsh shell. Enabled the versions locally and globally. When I list them ...
#erlang#asdf
44 16425 17
New
shahryarjb
Questions & Help>Questions

How to convert map to string (separated with ,)
Hello, I have map which I want to convert it to string like this: the map: %{last_name: "tavakkoli", name: "shahryar"} the string I ne...
#maps#strings
15 15491 2
New
kostonstyle
Questions & Help>Questions

Create time with one hour plus
Hi all I want to have a unix time, from the current time plus 1 hour. DateTime.now + 1 hour How to get it in elixir? Thanks
#time
33 13478 5
New
9mm
Questions & Help>Questions

Elixir way to conditionally update a map
I am constructing a JSON object (map) and I need to conditionally set a field. I’m trying to write proper elixir-way code… and I’m at a l...
#maps
55 19905 29
New
lucidguppy
Questions & Help>Questions

How do I read a file and enumerate its lines
I have a super simple question about elixir - how would I take a file like this foo bar baz and output a new file that enumerates th...
#how-to-question
20 15454 3
New

Other popular topics Top

JDanielMartinez
Questions & Help>Questions

** (RuntimeError) could not lookup Ecto repo Repo because it was not started or it does not exist
Hi! May someone helps me, please! I have two apps into an umbrella project: the first one is Database, which manages queries, and the se...
#umbrella#testing#repo#runtimeerror
11 15040 14
New
sorentwo
News>Announcing

Oban - Reliable and Observable Job Processing
Hello! tl;dr Announcing Oban, an Ecto based job processing library with a focus on reliability and historical observability. After spen...
/oban#ecto#postgres#job-processing
977 41022 311
New
senggen
Questions & Help>Questions

How to fix *Bad argument in call to erlang:'++'(<<"xxx/crash.log">>, ".3") in lager_rotator_default:rotate_logfile/2 line 84*
Erlang/OTP 25 [erts-13.2.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] 15:22:35.803 [error] gen_event {lager_file_backend...
#production#error#log
2 46314 2
New
stefanchrobot
Questions & Help>Questions

How to decode a JSON into a struct safely?
What’s the safe way to decode a JSON string into a struct? I want to avoid calling String.to_atom. Jason.decode can give me a map with st...
#structs#json
29 20780 26
New
vac
Questions & Help>Questions

Formatting a string to PEM with headers and line breaks
Hi, I'm quite new in Elixir and I'm trying to format a string to a PEM format. I have the certificate value like MIIDBTCCAe2...... and ...
2 14555 7
New
myronmarston
Questions & Help>Questions

Typespecs - best way to spec keyword lists?
The Elixir Typespec docs show the following syntax for keyword lists in typespecs: # ... | [key: type] # keyword lis...
#dialyzer
52 14258 3
New
aadeshere1
Questions & Help>Questions

Write while loop equivalent in elixir
I have a another noob question about loop. Since elixir is immutable, while loop is not directly possible. total = 10 while total != 0 ...
#while#loop
60 28200 36
New
9mm
Questions & Help>Questions

Elixir way to conditionally update a map
I am constructing a JSON object (map) and I need to conditionally set a field. I’m trying to write proper elixir-way code… and I’m at a l...
#maps
55 19905 29
New
Qqwy
Questions & Help>Questions

Updating structs: Map.put vs %Foo{oldfoo | new: value} vs put_in
Original source of discussion: This topic on the Pragmatic Programmers' Functional Web Development with Elixir, OTP, and Phoenix forum. ...
#maps#structs#pipeline#access
115 28410 31
New
vrod
Questions & Help>Questions

Starship (cross-shell prompt) error - (starship::utils): Executing command "elixir" timed out
I am using the Starship cross-shell prompt – it seems pretty nice, but I get some errors: [WARN] - (starship::utils): Executing command ...
#starship
8 17167 3
New
Back to top

Questions & Help>Questions

Questions Questions ❯

Latest on Elixir Forum

Elixir Forum ❯

Sponsor Spotlight

Coders51

We build reliable cloud platforms for business-critical systems.

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Manning

Develop your skills with books, videos, and courses.

WyewWorks

Enabling companies to succeed by building software people love.

Potions

The deployment platform built for Elixir: PaaS ease, VPS control.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Sub Categories:

Forums

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Manning

Develop your skills with books, videos, and courses.

WyewWorks

Enabling companies to succeed by building software people love.

Potions

The deployment platform built for Elixir: PaaS ease, VPS control.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement