#crystal-lang on 2016-05-23 — irc logs at freenode.irclog.whitequark.org

2016-05-20 19:16 jhass changed the topic of #crystal-lang to: The Crystal programming language | http://crystal-lang.org | Crystal 0.17.3 | Fund Crystals development: http://is.gd/X7PRtI | Paste > 3 lines of text to https://gist.github.com | GH: https://github.com/crystal-lang/crystal | Docs: http://crystal-lang.org/docs/ | API: http://crystal-lang.org/api/ | Logs: http://irclog.whitequark.org/crystal-lang

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05:30 <emancu> anyone here ?

05:30 <emancu> i'm trying to run the tests for `crystal`

05:30 <emancu> [merge_named_tuples]@crystal$ bin/crystal spec

05:30 <emancu> Warning: benchmarking without the `--release` flag won't yield useful results

05:30 <emancu> clang: error: no such file or directory: '/Users/emancu/Code/crystal/crystal/src/llvm/ext/llvm_ext.o'

05:30 <emancu> Error: execution of command failed with code: 1: `cc -o "/Users/emancu/.crystal/crystal-run-spec.tmp" "${@}" -rdynamic -lxml2 -lreadline -lgmp -lyaml -lz -lssl -lcrypto /Users/emancu/Code/crystal/crystal/src/llvm/ext/llvm_ext.o `$(command -v llvm-config-3.6 || command -v llvm-config36 || command -v llvm-config-3.5 || command -v llvm-config35 || command -v llvm-config) --libs --system-libs --ldflags 2> /dev/null` -lstd

05:30 <emancu> c++ /Users/emancu/Code/crystal/crystal/src/ext/libcrystal.a -levent -lpcre -lgc -lpthread -liconv -ldl`

05:31 <emancu> i understand there is a missing file, which wasn't compiled, but not sure how to do it

05:33 <emancu> hmm nvm

05:34 <emancu> make clean; make did the trick

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05:52 <crystal-gh> [crystal] emancu opened pull request #2634: Merge named tuples (master...merge_named_tuples) https://git.io/vra0e

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07:20 <BlaXpirit> uhh 'crystal play' is an empty page with just the header on latest crystal master, can anyone confirm?

07:23 <BlaXpirit> hm no, it's just completely broken

07:24 <BlaXpirit> and this looks like a serious problem, not just something i'm doing wrong

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07:27 <BlaXpirit> posted an issue, anyway

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07:36 <BlaXpirit> Yeaah... parsing the output of a `date` command is a terrible idea.

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08:10 <crystal-lang294> installing and using qt4 or qt5 in crystal-lang ?

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09:43 <jhass> crystal-lang294: I don't see a QT binding yet, you would have to start one :)

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10:47 <BlaXpirit> it's extremely difficult

10:50 <jhass> not introspectable/generatable?

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10:58 <BlaXpirit> jhass, uh introspectable by reading code. but the problem is Qt is not a C library, it's not even really a C++ library, it requires a special C++-specific preprocessor to generate some crazy data structures

10:59 <BlaXpirit> Python bindings probably have a separate runtime implementation for that

11:02 <BlaXpirit> but hey, at least it doesn't use C++ templates

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11:09 <jhass> pyside2 (Qt5's python bindings project) seems to have no architecture docs whatsoever

11:09 <jhass> but feels like a generator

11:10 <jhass> https://github.com/PySide/shiboken2

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11:12 <jhass> https://github.com/PySide/shiboken2/blob/master/doc/faq.rst

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11:14 <jhass> so some general "eh, let's parse the C++ header files" stuff from what I gather

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11:18 <crystal-gh> [crystal] MakeNowJust opened pull request #2637: Add flag to build crystal binary with debug symbols (master...feature/make-crystal-debug) https://git.io/vrah7

11:19 <crystal-lang525> hello all. what gui possible for crystal ? thanks.

11:22 <jhass> crystal-lang525: there's some very rough libui binding appeared yesterday, I got some basic gobject (Gtk, ...) binding going and there's some cocoa binding

11:22 <jhass> writing a binding for tcl/tk shouldn't be too hard

11:27 <crystal-lang525> jhass: sory, i speak english like a spannish cow. gtk is possible ? how install and use ? doc ? thanks

11:27 <jhass> it's very rough

11:27 <jhass> https://github.com/jhass/crystal-gobject

11:27 <jhass> install like every other shard

11:28 <jhass> https://github.com/jhass/crystal-gobject/blob/master/samples/gtk_hello_world.cr

11:29 <jhass> https://github.com/jhass/github_desktop_notifications here's a project using the libnotify binding from it

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11:48 <crystal-lang525> jhass: so sory, crystal is not for me now.

11:48 <jhass> crystal-lang525: why's that?

11:49 <jhass> the ecosystem is still young, which also means you can become a valuable member of it easily ;)

11:50 <crystal-lang525> jhass: without gui only console it does not go away ( traduction with google )

11:51 <jhass> while none is rock solid yet, I think I could point out a couple of GUI bindings

11:54 <crystal-lang525> I would return when a gui will be available, I liked ruby

11:55 <crystal-lang525> jhass: I would return when a gui will be available, I liked ruby

11:56 <jhass> there's some available, they might just need your hand as you run into issues ;)

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12:04 <crystal-gh> [crystal] jhass pushed 2 new commits to master: https://git.io/vrVUN

12:04 <crystal-gh> crystal/master 2996343 TSUYUSATO Kitsune: Add flag to build crystal binary with debug symbols

12:04 <crystal-gh> crystal/master 41ad013 Jonne Haß: Merge pull request #2637 from MakeNowJust/feature/make-crystal-debug...

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12:14 <jokke> jhass: lol

12:14 <jokke> that guy :)

12:20 <travis-ci> crystal-lang/crystal#41ad013 (master - Merge pull request #2637 from MakeNowJust/feature/make-crystal-debug): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132267879

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12:45 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vrVqc

12:45 <crystal-gh> crystal/master 68ba0f6 Ary Borenszweig: Use non-localized `date` command. Fixes #2635

12:46 <jhass> asterite: :( no cherry-picking there

12:47 <jhass> also perhaps we should just add a Time.now macro?

12:47 <jhass> that is exposing the compiler's Time.now through a macro call

13:02 <travis-ci> crystal-lang/crystal#68ba0f6 (master - Use non-localized `date` command. Fixes #2635): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132276425

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13:19 <asterite> jhass: hm, I merged release/0.17 into master, and then did `git pull --rebase` before push... I don't know why that didn't work as I expected

13:20 <asterite> and yes, we might need a Time.now macro call, maybe, not sure... the only use case will be for the compiler? :-)

13:20 <jhass> asterite: rebase rewrites history and thus gets rid of merge commits at the same time (as they no longer make sense)

13:21 <jhass> asterite: embedding a buildtimestamp seems to be generally useful for all sorts of tools?

13:22 <jhass> asterite: so to clarify, rebase rolls back history to the last common ancestor, remembering the commits as patches basically, then fast forwards to the remote ref and then starts reapplying the commits as if they were new ones

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14:08 <asterite> jhass: maybe we can add a `now(format)` macro method. I agree that it's generally useful as a build timestamp

14:09 <asterite> jhass: and finally, and good git tutorial I can read? I think it's time I learn it for real :-)

14:09 <jhass> I got a decent video

14:10 <jhass> https://www.youtube.com/watch?v=1ffBJ4sVUb4

14:12 <asterite> Thanks! :-)

14:12 <jhass> it goes through basics mostly (but rebasing too towards the end)

14:13 <jhass> but explains the core design so to speak behind the operations at the same time

14:14 <jhass> once it clicked that most stuff in git is just names for specific commits most fell into place for me

14:21 <asterite> Hmm... I wonder if `now(...)` should use Time.now or Time.utc_now. Or maybe have two macro methods, `now` and `utc_now`

14:23 <jhass> how about now(format, utc: false) ?

14:24 <asterite> Looks good, but I need to do more parsing and checking :-P

14:24 <asterite> (I'll do it)

14:28 <asterite> (I'll do it)

14:29 <asterite> utc is true by default? Maybe it should be false, because Time.now is not utc

14:40 <crystal-gh> [crystal] asterite opened pull request #2638: Add `now` macro method (release/0.17...feature/macro_now) https://git.io/vrVaJ

14:45 <jhass> yeah, probably false

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15:01 <jhass> asterite: I wonder whether we should enable travis for the release branch

15:01 <asterite> I think yes

15:02 <asterite> can it be enabled for any release/* ?

15:04 <jhass> yes, I'll do it

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15:38 <crystal-gh> [crystal] jhass pushed 1 new commit to master: https://git.io/vrVoh

15:38 <crystal-gh> crystal/master 9b2c4f6 Jonne Haß: Merge branch 'release/0.17'

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15:52 <travis-ci> crystal-lang/crystal#9b2c4f6 (master - Merge branch 'release/0.17'): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132310757

16:03 <travis-ci> crystal-lang/crystal#432bd4c (release/0.17 - enable travis on all release branches): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132310852

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17:45 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vrweo

17:45 <crystal-gh> crystal/master 842c3ed Ary Borenszweig: Merge branch 'release/0.17'

17:49 <jhass> asterite: btw git pull --rebase on the release branch or before you merged the release branch into master should still be fine ;)

17:52 <asterite> Ah, ok. I didn't do it just to make sure I don't screw things :-)

17:52 <asterite> (still didn't watch the video, I'll probably do that later today)

17:52 <asterite> For a moment I thought I did something really bad, because I couldn't see my changes in github... but it turns out github as issues

17:52 <asterite> *has

17:52 <jhass> yeah, it's starting to catch up now

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18:08 <17SAAAKAB> crystal-lang/crystal#aa5e508 (release/0.17 - Merge branch 'release/0.17' of github.com:crystal-lang/crystal into release/0.17): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132336798

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18:43 <travis-ci> crystal-lang/crystal#842c3ed (master - Merge branch 'release/0.17'): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132336926

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19:40 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vrwBM

19:40 <crystal-gh> crystal/master 072f36a Ary Borenszweig: Merge branch 'release/0.17'

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19:55 <travis-ci> crystal-lang/crystal#13b3021 (release/0.17 - Fixed #682: wrong codegen for yield inside yield): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132369323

20:14 <jokke> jhass: asterite do you need something for the pr i opened regarding openssl tag support?

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20:16 <travis-ci> crystal-lang/crystal#072f36a (master - Merge branch 'release/0.17'): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132370133

20:16 <jhass> I'm hesitant to accept openssl patches as the whole stdlib could use a rewrite (as https://github.com/datanoise/openssl.cr, #1710, #2180, #2343 show)

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23:08 <crystal-gh> [crystal] asterite pushed 1 new commit to master: https://git.io/vrrer

23:08 <crystal-gh> crystal/master 9234f0b Ary Borenszweig: Merge branch 'release/0.17'

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23:21 <travis-ci> crystal-lang/crystal#d745b74 (release/0.17 - Compiler: loop in cleanup while there were changes. Fixes #2407): The build passed. https://travis-ci.org/crystal-lang/crystal/builds/132421883

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23:59 <ryanw-se> when I use the crystal Math::PI function, why does it only print 3.14159 but not the rest