Since I updated alchemist last week there are no font face colours being applied.
I have my init.el set to auto load alchemist-mode when I open an .ex or .exs file.

The mode line shows is Elixir, alchemist and company, but there are no completions nor suggestions when I type and there are no font face colours. Other modes work fine, and alchemist was working correctly about 2 weeks ago.

When I click Elixir | Text Properties | Display faces it shows lots of font faces in the colours of my colour theme (moe-dark). They all look correct, but they aren't applied as you can see in the top half..

I'm also getting no support at all with company mode.

I suspect I've configured something wrongly but can't work out what. I haven't changed anything related to alchemist in my init.el.

Any ideas

EDIT: Sorry - I should add:
Emacs : GNU Emacs 24.5.1
Company version : 0.9.0-cvs
Elixir version: Elixir 1.0.4
aclehmist-mode : 0.16.1
elixir-mode : 1.0.0

It would be nice if the automatic setup of company-mode for elixir files would allow it to define a list of company-backends to be tried if the Elixir/Erlang completion does not find a hit; at the moment I do not get completion for the code in the project files. A customization-variable would be nice, as I guess two emacs users have three opinions on what fallback backends are the most appropriate...

I could tackle that on my own and provide a PR, if need be. Just thought I ask you first, since this is very freshly released and you might have plans already.

When working with rspec-mode the feature I've come to love the most is being able to jump back and forth between test and implementation.

From what I was able to find (correct me if I'm wrong!) alchemist.el only provides me with going from implementation to test (and always splitting windows, which sometimes is not what I want).

Would you be interested in adding this feature ? I would happily implement it ;)

How can I use company mode when not in a mix project or in an exs file?

I would be fantastic if I could customize alchemist so it does not automatically start the application when running tests from the 'test-on-save' hook.

If this feature is already there, I apologize. I've been looking for a while now, but failed to find it.

When I add company-yasnippet to my company backends, alchemist completions break but I get Elixir snippets. If I then add alchemist back into the the company backends , if I add it after adding company-yasnippet, it starts working and yasnippets quit getting loaded as a backend, and vice-versa. Basically, I'd like to have both show up in my list of completions, but I can't figure out how.

Alchemist reuses the mix buffer if it's in the same frame as the cursor, but if you have a mix buffer in another frame, it opens a new one in the current frame, and then the output is shown in both frames.

It would be better if Alchemist could notice if the buffer already exists in any frame, and just reuse that one.

Pretty straightforward: I'd love to be able to set the MIX_ENV for the various alchemist mix commands, e.g. alchemist-mix-compile. Having to switch constantly switch environment with getenv/setenv is tiring and error prone.

Maybe it could be implemented as a prefix arg to the mix commands?

btw, I've only been using alchemist for a couple of weeks, but it's already saved me a ton of time -- thanks!!

When I run alchemist-help-search-at-point on this line:
Riffer4.testMike

I get a documentation window.

When I run it on a line within the same module with just:
testMike
I don't get a documentation window; instead I get "error in process sentinel: Wrong type argument: stringp, nil.

Notably for beginners a menu is helpful

Hello! Thanks for awesome mode, looks great!
I've got completion working out of the box, just after installing company-mode, but I can't M-. to the sources of e.g. List.flatten

For that purpose there're two variables you can set:

(setq alchemist-goto-erlang-source-dir "/path/to/erlang/source/")
(setq alchemist-goto-elixir-source-dir "/path/to/elixir/source/")

So, I git clone <github elixir repo> to /usr/local/src/. What value should I set to this vars?

Same question for Erlang, I've installed erlang-src in Debian and found:

 tree /usr/lib/erlang/lib -L 1

├── asn1-3.0.4
├── common_test-1.10
├── compiler-5.0.4
├── cosEvent-2.1.15
├── cosEventDomain-1.1.14
├── cosFileTransfer-1.1.16
├── cosNotification-1.1.21
├── cosProperty-1.1.17
├── cosTime-1.1.14
├── cosTransactions-1.2.14
├── crypto-3.5
├── debugger-4.0.3
├── dialyzer-2.7.4
├── diameter-1.9
├── edoc-0.7.16
├── eldap-1.1.1
├── erl_docgen-0.3.7
├── erl_interface-3.7.20
├── erts-6.4
├── et-1.5
├── eunit-2.2.9
├── gs-1.5.16
├── hipe-3.11.3
├── ic-4.3.6
├── inets-5.10.6
├── jinterface-1.5.12
├── kernel-3.2
├── megaco-3.17.3
├── mnesia-4.12.5
├── observer-2.0.4
├── odbc-2.10.22
├── orber-3.7.1
├── ose-1.0.2
├── os_mon-2.3.1
├── otp_mibs-1.0.10
├── parsetools-2.0.12
├── percept-0.8.10
├── public_key-0.23
├── reltool-0.6.6
├── runtime_tools-1.8.16
├── sasl-2.4.1
├── snmp-5.1.1
├── ssh-3.2
├── ssl-6.0
├── stdlib-2.4
├── syntax_tools-1.6.18
├── test_server-3.8
├── tools-2.7.2
├── typer-0.9.8
├── webtool-0.8.10
├── wx-1.3.3
└── xmerl-1.3.7

Looks like a little bit dump question, but i've tried different values with no result, always getting Don't know how to find: List.flatten

It my iex buffer is hidden, and I use something like C-c a i r, the region is evaluated, but we don't see it because the iex buffer remains hidden.

This is possibly the way it is supposed to be. :)

I think we should definitely implement something in the line of this pr to rspec-mode

It's great plugin and one of the reason why I switched to Emacs :) Thanks for that!
But one thing is annoying me – company-mode shows only alchemist backend (I think it's related to #66). So my suggestion is not activate backend automatically, but give necessary code in documentation.
At least any suggestions how to disable backend?
I tried add hook where remove that backend, but without succeed.

Enabling alchemist, enables it in all buffers. Expected behavior would be that it's only enabled in elixir-mode

Debugger entered--Lisp error: (void-variable alchemist-mode-map)

IIUC the reason is defining the menu before alchemist-mode-map is initialised.

Maybe a (defvar alchemist-mode-map nil) before solves it.

Resp. start with the map, here an example from python.el

(defvar python-mode-map
(let ((map (make-sparse-keymap)))
;; Movement
(define-key map [remap backward-sentence] 'python-nav-backward-block)
(define-key map [remap forward-sentence] 'python-nav-forward-block)
(define-key map [remap backward-up-list] 'python-nav-backward-up-list)
(define-key map "\C-c\C-j" 'imenu)
;; Indent specific
(define-key map "\177" 'python-indent-dedent-line-backspace)
(define-key map (kbd "") 'python-indent-dedent-line)
(define-key map "\C-c<" 'python-indent-shift-left)
(define-key map "\C-c>" 'python-indent-shift-right)
...

When jumping to a function that is in current buffer nothing happens.
Removing save-excursion from alchemist-goto-definition-at-point solves the problem - I think it shouldn't be in a function which supposed to move the point.

Hi,

First of all thanks for alchemist. It's really nice tool. :)

I've had issue with the completions showing up a bit strange. Here's what happens...

Completions on the module level seems to work well. Also linking to documentation works for modules. When it lists functions inside a module it breaks like that. Any ideas?

Emacs version is 25.0.50.1 (installed via Homebrew), alchemist version is 0.10.0, company version is 0.8.7 and elixir-mode version is 2.0.2. All installed via melpa-stable.

Does using ctags (mmorearty/elixir-ctags, rgrinberg/mix_ctags) can enhance in any way alchemist?

Thanks a lot writing that marvellous stuff. Is it going to be backported to emacs-elixir?
Alchemist seems to take the menu of elixir-mode. Maybe not define as own (minor)-mode, just loading the stuff as extension?

Is it just me or tab completion inside IEx buffer does not work? That is the only problem, right now I am using a normal terminal because of that.

If it is so, is there any work around?

when alchemist-project-compile-when-needed is set, elixirc is used to compile the current buffer regardless of if it contains an .exs elixir script file or not. Per the docs, script files are not meant to be compiled – and in fact, running elixirc on them will actually eval them.

Thankfully I discovered this due to excessive CPU usage in time to prevent some what would have been catastrophic data loss (long story).

I'll see about submitting a PR to fix this but I'm still kinda new to emacs.

Definitions with a do...end or a do: are handled perfectly, but bodyless clauses (used for documenting arguments and setting default argument values) cause some problems:

In the example above, dgettext/4 is defined as:

@spec dgettext(module, binary, binary, bindings) :: binary
def dgettext(backend, domain, msgid, bindings \\ %{})

def dgettext(backend, domain, msgid, bindings) when is_list(bindings) do
  dgettext(backend, domain, msgid, Enum.into(bindings, %{}))
end

def dgettext(backend, domain, msgid, bindings) do
   backend.lgettext(locale(), domain, msgid, bindings)
  |> handle_backend_result
end

dngettext/6 is very similar.

Hi, I'm an Elixir newbie, using Alchemist. I've run across something that I'm not sure if is a bug in my code, my usage, or alchemist. Since I'm not sure, I've created a minimal project. It's here: https://github.com/BrianHicks/testplug

The problem is: I get an error on the use Plug.Router line in lib/testplug.ex when compiling with alchemist-compile-this-buffer:

elixirc /Users/brianhicks/code/sandbox/testplug/lib/testplug.ex
lib/testplug.ex:1: warning: redefining module TestPlug

== Compilation error on file lib/testplug.ex ==
** (CompileError) lib/testplug.ex:2: module Plug.Router is not loaded and could not be found
    (elixir) expanding macro: Kernel.use/1
    lib/testplug.ex:2: TestPlug (module)

However, the tests all pass and the app will run and respond when started with Cowboy. So I'm at a bit of a loss here - is there something else I have to configure? I've pulled down the deps... are they in some weird location I need to set?

This happens when I try to compile:

Debugger entered--Lisp error: (void-function alchemist-utils--establish-project-root-directory)
  (alchemist-utils--establish-project-root-directory)
  (let ((old-directory default-directory)) (alchemist-utils--establish-project-root-directory) (alchemist-buffer-run (alchemist-utils--build-runner-cmdlist cmdlist) alchemist-mix-buffer-name) (cd old-directory))
  alchemist-mix-execute(("mix" "test"))

The problem is here: https://github.com/tonini/alchemist.el/blob/master/alchemist-mix.el#L143

Completion doesn't work for me. It completes only "texts" from current file

Installed versions:
Emacs: "GNU Emacs 24.4.1 (x86_64-suse-linux-gnu, GTK+ Version 3.14.5) of 2014-11-26 on cloud127"
Company: "0.8.8-cvs"
Elixir: "Elixir 1.0.2"

If a nested mix project defines its own dependencies, mix tool keep them in deps/ in the root directory of the whole project. This is right and desired behavior. Unfortunately, this fools Alchemist which pops up:

== ALCHEMIST COMPLETION FAILED ==
== OUTPUT BEGIN:
Unchecked dependencies for environment dev:
* asn1ex (https://github.com/vicentfg/asn1ex.git)
  the dependency is not available, run `mix deps.get`
** (Mix) Can't continue due to errors on dependencies
== OUTPUT END:

When I did deps.get immediately in the nested project, I get another error:

== ALCHEMIST COMPLETION FAILED ==
== OUTPUT BEGIN:
** (Mix) Could not start application lte_rrc: could not find application file: lte_rrc.app
== OUTPUT END:

I guess it can be related with the fact that in Emacs by default CWD is where a visited file resides, not where emacs process was started, a fortiori where root of a whole Elixir project is.

Obviously, whatever completions are provided by standard Elixir shell (iex -S mix) started in the root, works as expected, e.g. :lte_rrc.<TAB> list all exported functions.

One might use snippets instead (that's what I did back on VIM), but automatically closing do would apply everywhere else there aren't snippets.

What gets typed

def start_link do\n|

What gets inserted

def start_link do
  |
end

Installed from MELPA on emacs 24.3.50.1 and Elixir 1.0.2

In my elisp run on emacs load:

(require 'elixir-mode)
(require 'alchemist)
(add-hook 'after-init-hook 'global-company-mode)
(setq alchemist-help-docs-ansi-color-enabled t)

Any attempt to complete an Elixir call simply outputs, "Cannot complete at point" to the minibuffer.

Company works otherwise. And alchemist works fine besides this.

Consider it helpful, if the real command-name is indicated by menu.
That way user may question C-h f NAME.

Also some docu displayed seems useful.

In the following example, when point is on the function(2) call and I call alchemist-goto-definition-at-point (M-.), I get Don't know how to find: function

defmodule X do
  def use_fun do
    function(2)
  end

  def function(x) do
    x
  end
end

I'm just starting with Elixir myself. Wondering what are the differences between the two modes.
I'm seeing different outputs of runing `mix test' on a generated project (with some modifications), and wondering why the reporting is so different?

With elixir-mix-test:

Compiled lib/postgrex/binary_utils.ex
Compiled lib/postgrex/error.ex
Compiled lib/postgrex/structs.ex

== Compilation error on file lib/postgrex/protocol.ex ==
** (CompileError) lib/postgrex/protocol.ex:247: function 'nil?'/1 undefined
    (stdlib) lists.erl:1336: :lists.foreach/2
    (stdlib) erl_eval.erl:657: :erl_eval.do_apply/6

could not compile dependency postgrex, mix compile failed. You can recompile this dependency with `mix deps.compile postgrex` or update it with `mix deps.update postgrex`

ElixirMix exited abnormally with code 1 at Sat Oct 25 19:24:20

While with alchemist-mix-test:

Elixir started at Sat Oct 25 19:26:32

mix test
==> postgrex
�[31m�[1mwarning: the dependency postgrex requires Elixir "0.15.0" but you are running on v1.0.1�[0m
Compiled lib/postgrex/binary_utils.ex
Compiled lib/postgrex/error.ex
Compiled lib/postgrex/structs.ex
lib/postgrex/types.ex:5: warning: unused import Postgrex.BinaryUtils

== Compilation error on file lib/postgrex/types.ex ==
** (CompileError) lib/postgrex/types.ex:97: cannot invoke local nil?/1 inside guard
    (stdlib) lists.erl:1352: :lists.mapfoldl/3
    (elixir) src/elixir_clauses.erl:53: :elixir_clauses.translate_guard/4
    (elixir) src/elixir_clauses.erl:49: :elixir_clauses."-guards/4-lc$^0/1-0-"/4
    (elixir) src/elixir_clauses.erl:39: :elixir_clauses.clause/7
    (elixir) src/elixir_clauses.erl:82: anonymous fn/5 in :elixir_clauses.do_clauses/4

could not compile dependency postgrex, mix compile failed. You can recompile this dependency with `mix deps.compile postgrex` or update it with `mix deps.update postgrex`

Elixir exited abnormally with code 1 at Sat Oct 25 19:26:35

If I enter Keyword.fetchand wait a bit, one suggestion is shown Keyword.fetch!. If I then press enter or tab Keyword.fetch is replaced with only fetch! not Keyword.fetch! as expected.

When opening a file in Elixir-mode I get the following message:

Company back-end 'alchemist-company' could not be initialized:
Symbol's function definition is void: init

Last I checked a few days ago it was working fine (probably on 0.7.0).

When I try to use the help function (specifically, alchemist-help-search-at-point) I get the error:

error in process sentinel: Wrong type argument: stringp, nil

I'm using evil-mode so it's possible that is where the problem is. I am not sure how long since it stopped working.

Hello,

I am a rookie when it comes to emacs and lisp, and i have trouble getting this to work.

I have added this:
(add-hook 'after-init-hook 'global-company-mode)
(add-to-list 'auto-mode-alist '(".ex$" . alchemist-mode))
(add-to-list 'auto-mode-alist '(".exs$" . alchemist-mode))

But neither syntax highlighting or auto complete are working, any ideas or a manual for how to use this? README.md is not very clear for me...

Thanks, Ivan.

Does those to features need to run the entire project? Sometimes apps do some kind of cleaning up and resetting some data (clearing logs, metric counters, etc) when are started, so developers run them in strict conditions. Or simply take a while to initiate. But alchemist starts them whenever it needs.
I've noticed '--no-compile' option when alchemist runs mix run and I think there should be also '--no-start' - what will it break?

After using the bindings I realized that they're too long, we should think about it how we could trim them down a bit.

/cc @pragdave

I'm fairly new to emacs, so apologies if this isn't terribly descriptive. I'm on 24.4.91.1 and alchemist-20150407.55 fwiw.

I'm using company mode w/ global-company-mode. My init.el looks something like this

(use-package elixir-mode :ensure)
(use-package alchemist :ensure)

(use-package company :ensure)
(add-hook 'after-init-hook 'global-company-mode)

In non-elixir files, company-mode's company-backends look like this

company-backends is a variable defined in `company.el'.
Its value is (company-bbdb company-nxml company-css company-eclim company-semantic company-clang company-xcode company-cmake company-capf
              (company-dabbrev-code company-gtags company-etags company-keywords)
              company-oddmuse company-files company-dabbrev)

These allow completion of keywords, words in open buffers, etc. It is very useful.

When in an elixir file, company-backends looks like this

company-backends is a variable defined in `company.el'.
Its value is (alchemist-company company-bbdb company-nxml company-css company-eclim company-semantic company-clang company-xcode company-cmake company-capf
                   (company-dabbrev-code company-gtags company-etags company-keywords)
                   company-oddmuse company-files company-dabbrev)

where alchemist-company has been inserted into the beginning. But unfortunately if a match doesn't come up in alchemist-company, it does not list options from the other backends.

I would love to use alchemist-company and still failover to the other backends.

Am I doing something wrong? Any advice, or is this just not possible?

When I run alchemist-goto-definition-at-point I get the following error.

Symbol's value as variable is void: find-tag-marker-ring

A bit of searching turned up some other projects seeing the same error

I'm using GNU Emacs 24.5.1

Company mode is active and completion works fine, but I don't see documentation for selected functions like shown in "Complete & Documentation lookup" paragraph. I use alchemist version 20150107.2241 and Elixir 1.0.2. Am I doing something wrong?

I sometimes want to run alchemist commands against an existing erlang node rather than boot up a new node. This would potentially help with issues like #50, #46, #33, etc.

I knocked together an example of what this might look like for autocomplete using distel over here. This could be expanded to back thing like alchemist's help/whatever functionality.

I like how alchemist currently does things, and distel would be an added dependency, so I think this might work well as an optional feature.

Can't put in a form like:

if true do
"asdf"
end

IEx hangs, resp. echos the input, but not the expected result.
Whilst when iex is called from bash, "asdf" appears as expected.

Thanks!

As some keys got broken, checking for the reasons: alchemist-mode-map displayed a violation of

http://www.gnu.org/software/emacs/manual/html_node/elisp/Key-Binding-Conventions.html

Don't define C-c letter as a key in Lisp programs. Sequences consisting of C-c and a letter (either upper or lower case) are reserved for users;

Inside the Alchemist-IEx buffer:

• the command clear is accepted by the buffer, but it does not clear the screen. I am thinking that maybe it is an issue with shell or eshell? here using clear on shell or eshell does not work, but using inside term and ansi-term works fine.

EDIT

So I realize that you can use erase-buffer inside eshell. So maybe this issue is not that important anymore.

[WARNING: feature-request]

It would be nice to have org-mode babel support to run pieces of elixir in .org files. That would make it very easy to create tutorials for elixir inside emacs.

My emacslisp-fu is not good at all so that is why this is not a PR \o/.

If this is not the place for this discussion, please close it and tell me where it would fit better.

When function doesn't have module name specified, it should be assumed that function is from current module. I've hacked a proposal but it's shity and brakes things: 7a02c70

I've just installed Alchemist (it looks great!). I've also installed company (and uninstalled auto-complete). Completion generally works, but I get no completion options for e.g. List.

When I run company-complete manually, it says there are no completions.

I installed Alchemist from Melpa. alchemist-version reports "Alchemist 0.13.0snapshot".
I also have elixir-mode version 2.30snapshot.

My modeline shows Elixir alchemist company (and other stuff)
I'm running on a Mac/Yosemite.

Thanks!