Incremental Compilation doesn't work on certain systems. Can't interpret a date

[codec-abc]

Hi,

I try to follow the step described in the readme to get a something up and running. Here is what I did to create a project and try having it running. For more context, I used VSCode (thus the code . command) to modify the mix.exs file which is after the modification like this. Do you notice something wrong in my setup?

Also before that, I tried to get something working on Windows and I cannot even got something close to work. I could not even call elchemy from the command line. Is Windows supported at this point?

[wende]

Hi @codec-abc
Your setup seems fine to me. Can you print all of the versions according to troubleshooting doc here?
https://github.com/wende/elchemy/blob/master/roadmap/TROUBLESHOOTING.md

Regarding Windows, there was no attempts of running it on Windows what so ever.
Elchemy bash file uses many unix tools like find, symlinks etc.
I'm completely unaware what is the availability of these tools on Windows

[wende]

Oh! It seems that there is a problem here with incremental compilation feature.

Particularly here

find: I cannot figure out how to interpret ‘Mon Apr 10 00:00:00 CET 1995’ as a date or time

[wende]

What form is your output in when you use date command?
And what OS are you using?

[codec-abc]

I'm on A Ubuntu 16.04 LTS guest inside a Windows 10 host (through virtualbox). Typing date print mardi 6 février 2018, 18:44:14 (UTC+0100). About Windows, maybe a quick note in the Readme could be writem about it? Also do you plan to support it at some point (even far away in the future) ?

[wende]

I've never considered that it won't parse a date on non english locale. That's definitely an important bug 🐛
I'll fix that ASAP.

Regarding Windows I don't really have a platform to test it on. Plus I don't know how people use Windows for development (which terminal client for instance). I'd need help from somebody else on that.
But that definitely deserves a card created

[codec-abc]

Thanks!

Concerning Windows support, it seems that it "only" boils down to using Unix tools in bash script and makefile since the underlying tools (Elixir and Elm) already support it. At first glance I don't notice something else that shouldn't work out of the box on Windows. Do you want me to open an issue to somehow track to start what won't work on Windows today?

[wende]

Created a card for that. I'd appreciate any reports and concerns if found. Thanks!

[OvermindDL1]

Why not use explicit date formatting syntax?

╰─➤  date +%Y%m%d 
20180206

It has a ton of formatting options to massage it into whatever format you want.

[wende]

Should be fixed in version 0.6.4
install using npm install -g elchemy@0.6.4
And let me know 👍

[codec-abc]

Still got the same error after update elchemy, elm and creating a new project.

hmird@hmird-VirtualBox:~/Dev/elchemy/a_project$ mix test
warning: redefining module ElchemyInit (current version defined in memory)
  elchemy.exs:1

==> elchemy
Compiling 6 files (.ex)

== Compilation error in file elm/Elchemy/Native/NativeDict.ex ==
** (CompileError) elm/Elchemy/Native/NativeDict.ex:2: module Elchemy.XBasics is not loaded and could not be found
    expanding macro: Elchemy.import_std/0
    elm/Elchemy/Native/NativeDict.ex:2: Native.Dict (module)
    expanding macro: Elchemy.__using__/1
    elm/Elchemy/Native/NativeDict.ex:2: Native.Dict (module)
could not compile dependency :elchemy, "mix compile" failed. You can recompile this dependency with "mix deps.compile elchemy", update it with "mix deps.update elchemy" or clean it with "mix deps.clean elchemy"

The good point is that the message about the unrecognized date thing has disappear.

[wende]

Did you elchemy clean before that?

[codec-abc]

Since I delete the whole directory and create a new one, I didn't do it. Did I still need it to do it?

[wende]

Oh. Nope. Shouldn't change a thing then. Could you share a repo somewhere so I can look at it?

[codec-abc]

Here is my project.

I hope it will be enough to diagnose the issue.

[wende]

Downloaded.
Couldn't compile

elchemy clean
mix test

Fixed the issue for me

[wende]

If you're still seeing this problem tell me what outputs do you get from:

• date +"%Y-%m-%d %H:%M:%S"
• find . -newermt "1995-04-10 23:35:02"

[codec-abc]

I run elchemy clean and I got

rm: missing operand
Try 'rm --help' for more information.

Then I ran mix test and it worked, and now running elchemy clean again seems to work without complaining about a missing operand.

I am not really sure what happened there since I am quite sure I have done a rm -r over my old project and created a new one.

[wende]

Missing operand as far as I know would mean there was nothing to clean
So that would confirm your statement.

Can't really tell
Let me know if you see that again in future so we could reproduce the problem! 👍

Closing for now