How come a downgrade is recommended in this case?

pair@fox /p/tmp> boot -d philoskim/debux:0.2.1 show -u
Retrieving maven-metadata.xml from  (1k)
[philoskim/debux "0.2.0"]

also

> boot -d environ:1.1.0 show -u
Classpath conflict: org.clojure/clojure version 1.9.0-alpha14 already loaded, NOT loading version 1.5.1
Retrieving maven-metadata.xml from  (1k)
[environ "1.0.2"]

ah, sorry, i see here is already a https://github.com/boot-clj/boot/issues/577

wow, i found significant boot-up time contributor:

boot.user=> (time (require 'buddy.auth.middleware :reload-all))
"Elapsed time: 856.008374 msecs"

because it's loading instaparse (i can see it w the :verbose option)

(an that's on a 3.2GHz i5 Skylake, 24GB RAM, 6MB L3 cache)

what if you run it again?

boot.user=> (dotimes [_ 10] (time (require 'buddy.auth.middleware :reload-all)))
"Elapsed time: 1734.089318 msecs"
"Elapsed time: 1428.841853 msecs"
"Elapsed time: 1645.468317 msecs"
"Elapsed time: 1390.314959 msecs"
"Elapsed time: 1302.180635 msecs"
"Elapsed time: 1256.454168 msecs"
"Elapsed time: 1184.596769 msecs"
"Elapsed time: 1134.395214 msecs"
"Elapsed time: 1159.823145 msecs"
"Elapsed time: 1113.830371 msecs"

(dotimes [_ 10] (time (require 'buddy.auth.middleware :reload-all)))
"Elapsed time: 784.197751 msecs"
"Elapsed time: 748.213749 msecs"
"Elapsed time: 701.835304 msecs"
"Elapsed time: 709.553609 msecs"
"Elapsed time: 715.873056 msecs"
"Elapsed time: 729.215705 msecs"
"Elapsed time: 723.07217 msecs"
"Elapsed time: 743.959333 msecs"
"Elapsed time: 765.506379 msecs"
"Elapsed time: 738.188335 msecs"

Let's say I have two separate tasks, one for building a project and one for serving the compiled resources:

(deftask build
  ...)

(deftask serve
  ...)

(deftask build-and-serve
  ...)

@looveh what is the result of "building a project"? i suspect you are using the target task to output some files at the end, right?

@onetom It is, in this case the serve task is a task that wraps a cli command, without any regards to the fileset concept

i see... that goes a bit against the boot fileset concept, so im not sure how to handle that case easily.

@looveh The first thing I would try is something like (comp (serve) (watch) (build) (target))

That would start your server once, and then rerun your build process on file changes, while your original server keeps running.

Hi. I wonder if there is an approved or built-in way for creating an output file based upon an input file with some templating applied (replace variables in the input file with build-time values). Like the filtering in Maven.

i made a task like this recently,

(require '[boot.core :as core]
         '[boot.util :as util]
         '[ :as io])

(core/deftask string-template
  "Does the thing"
  [f template-file VALUE str "Name of the template file to use"
   t target-file VALUE str "Name of the output file to produce"
   p placeholder VALUE str "The placeholder to recognize and replace"
   c content VALUE str "Content to replace placeholder with"]
  (core/with-pre-wrap [fs]
    (let [tmpd (core/tmp-dir!)]
      (if-let [template-file (some->> (core/input-files fs)
                                      (core/by-name [template-file])
                                      first
                                      core/tmp-file)]
        (let [template-content   (slurp template-file)
              output-file        (doto (io/file tmpd target-file) io/make-parents)
              quoted-placeholder (java.util.regex.Pattern/quote placeholder)]
          (spit output-file (.replaceAll template-content quoted-placeholder content))
          (-> fs
              (core/add-resource tmpd)
              commit!))
        (throw (ex-info "No template file found" {:opts *opts*}))))))

used like

(string-template :template-file (or template-file "template.html")
                   :target-file (str (name route) ".html")
                   :placeholder "{{CONTENT}}"
                   :content (route-content route))

@ska I haven't tried but -> https://github.com/adzerk-oss/boot-template

oh yeah, i need to disavow that thing

Ah OK lol

stringtemplate, way more complicated than necessary

haha

the snippet also creates new tmp-dir each call, as it is inside with-pre-wrap

Hello how can I make this task

(deftask dev []
  (comp
    (environ :env {:http-port "3000"
                   :db-uri "datomic:"})
    (watch)
    (notify :visual true :title "CLJS")
    (system :sys #'dev-system :auto true :files ["handler.clj"])
    (reload :ids #{"js/app"})
    (cljs-repl :ids #{"js/app"})
    (cljs :source-map true
          :ids #{"js/app"}
          :compiler-options {:parallel-build true
                             :compiler-stats true})))

I think it does have something to do with the comp fn but I don't know how to make it keep watching files and running

not sure how you’re calling it from the repl, but my guess is you’re just doing (dev) you just need to wrap it in a call to the boot function like this: (boot (dev))

@vinnyataide ^^

ohhhhh

@geoffs I'm so sorry lol

np

tho that’s the second time that’s come up in a few days 🙂 maybe the README needs to mention it more prominently or in more places :thinking_face:

there's this part

You can start a REPL in the context of the boot script (compiled as the boot.user namespace), and build interactively too:
boot.user=> (boot (pom) (jar) (install))

that remains a question, why it says repl when there's no repl task in the boot command?

have you guys ever encountered:

java.lang.Exception: Multiple jar entries match: .*/pom.xml
clojure.lang.ExceptionInfo: Multiple jar entries match: .*/pom.xml

when installing an uberjar?

hmm, installing or creating @richiardiandrea? I’ve seen something like it when building an uberjar recently. I forget if it was that exact error

If I dump it to target no problem, when I use install this happens

@vinnyataide I think the implication there is that you start a repl from the command line with boot repl and then run whatever boot commands you want

I see there is a --pom param

interesting...

kk

my META-INF/ indeed contains more than one pom.xml so I might need to specify that, or sift them away

I am just having doubts, should the uberjar contain the META-INF info of your project only?

it looks like there is services folder that is necessary for jackson for instance

indeed using --pom succeeds

I know how to use (doc ...); I know how to configure existing boot tasks. I sorta get how boot works. However, I really need to read a "boot from the ground up" or "design and implementation of boot"

where can I pick up this knowledge?

The boot cognicast was pretty interesting, albeit from a broad perspective

http://blog.cognitect.com/cognicast/112

are there transcripts / slides somewhere? I like randoma ccess / ability to skim, whereas audiocast forces me to get info linearly, in the order / rate interviewer decides

cognicast does have transcription, but it doesn't appear caught up to that episode yet.

is anyone here using boot for auto completion? I have a problem where (1) I need ot parse some clj code, (2) I don't want to parse the code in elisp -- so my ideal solution is -- when a file gets recompiledby boot (due to watc), it also runs my persona "tag extractor" which then outputs a file emacs picks up for auto completion

sounds like a good idea and not too complicated too achieve, either shalling out or using some kind of tag generator for clojure (does it exist?)

@qqq separate boot task to analyze the compiled code? https://clojuredocs.org/clojure.repl/source-fn

@richiardiandrea @mobileink : so the ideal use case is: I put my mouse over a spec -- and another window displays the definition of that spec

[except not quite spec, as I'm using something similar but not exactly spec]

I use ctags in emacs for that kind of go to but it is not always reliable

source in the repl works better for me

i have a similar situation (i think) where i need to examine fn definitions and reject those that do not fit the profile, and i cannot use a macro.

@qqq: how does watch correspond to hovering in the browser? i must be missing sth.

@richiardiandrea : i use global. i have tried several times to figger out the pros and cons of various "tags" tools and always ended up with a headache.

@mobileink I copied a function from prelude for emacs that uses imenu but I don't know where it takes tags from 😞

been there done that. Is BTDT an acronym?

http://www.abbreviations.com/BTDT