Add elixir-ls as a language backend for elixir
This commit is contained in:
mpanarin
smile13241324
parent
7072f61922
commit
3ee5aedbbf
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@ -1411,6 +1411,7 @@ Other:
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- Change binding of =alchemist-project-find-test= from
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~SPC m p t~ to ~SPC m t F~ (thanks to Lyuben Petrov)
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- Mark alchemist jump handler as async (thanks to Lukasz Czaplinski)
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- Added elixir-ls backend (thanks to mpanarin)
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**** Elm
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- Fixed flycheck initialization (thanks to Kevin W. van Rooijen)
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- Added =elm-test-runner= (thanks to Juan Edi)
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@ -2,55 +2,106 @@
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#+TAGS: general|layer|multi-paradigm|programming
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[[file:img/elixir.png]] with [[file:img/alchemist.png]]
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[[file:img/elixir.png]]
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* Table of Contents :TOC_5_gh:noexport:
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- [[#description][Description]]
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- [[#features][Features:]]
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- [[#install][Install]]
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- [[#layer][Layer]]
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- [[#choosing-a-backend][Choosing a backend]]
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- [[#feature-comparison-in-backends][Feature comparison in backends]]
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- [[#configuration][Configuration]]
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- [[#flycheck][Flycheck]]
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- [[#credo][Credo]]
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- [[#dogma][Dogma]]
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- [[#mix-compile][mix compile]]
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- [[#language-server-protocol][Language server protocol]]
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- [[#debugger][Debugger]]
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- [[#key-bindings][Key bindings]]
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- [[#refcard][Refcard]]
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- [[#help][Help]]
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- [[#mix][Mix]]
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- [[#project][Project]]
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- [[#evaluation-in-place][Evaluation in place]]
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- [[#repl-interactions][REPL interactions]]
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- [[#tests][Tests]]
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- [[#compile][Compile]]
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- [[#execute][Execute]]
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- [[#code-definition-jump][Code Definition Jump]]
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- [[#hex-packages][Hex (packages)]]
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- [[#macro-expand][Macro expand]]
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- [[#formatting][Formatting]]
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- [[#alchemist][Alchemist]]
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- [[#refcard][Refcard]]
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- [[#help][Help]]
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- [[#mix][Mix]]
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- [[#project][Project]]
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- [[#evaluation-in-place][Evaluation in place]]
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- [[#repl-interactions][REPL interactions]]
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- [[#tests][Tests]]
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- [[#compile][Compile]]
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- [[#execute][Execute]]
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- [[#code-definition-jump][Code Definition Jump]]
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- [[#hex-packages][Hex (packages)]]
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- [[#macro-expand][Macro expand]]
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- [[#formatting][Formatting]]
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- [[#lsp][LSP]]
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* Description
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This layer adds support for [[http://elixir-lang.org/][Elixir]].
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[[https://github.com/tonini/alchemist.el][Alchemist]] brings the Elixir tooling to Emacs and comes with a bunch of features.
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[[https://github.com/emacs-lsp/lsp-mode][Lsp-mode]] brings IDE like features following Language Server Protocol, through [[https://github.com/JakeBecker/elixir-ls][elixir-ls]]
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As Alchemist is no longer maintained, elixir-ls is a preferred solution, even though it has less features at the moment.
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** Features:
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- Powerful IEx integration
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- Mix integration
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- Compile & Execution of Elixir code
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- Inline code evaluation
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- Documentation lookup
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- Definition lookup
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- Smart code completion
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- Elixir project management
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- Integration with [[http://company-mode.github.io/][company-mode]]
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- Flycheck support for mix compile
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- Flycheck support for [[https://github.com/rrrene/credo][credo]]
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- Flycheck support for test results
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- Powerful IEx integration
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- Mix integration
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- Compile & Execution of Elixir code
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- Inline code evaluation
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- Documentation lookup
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- Definition lookup
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- Smart code completion
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- Elixir project management
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- Integration with [[http://company-mode.github.io/][company-mode]]
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- Flycheck support for mix compile
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- Flycheck support for [[https://github.com/rrrene/credo][credo]]
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- Flycheck support for test results
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* Install
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To use this configuration layer, add it to your =~/.spacemacs=. You will need to
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add =elixir= to the existing =dotspacemacs-configuration-layers= list in this
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file.
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** Layer
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To use this configuration layer, add it to your =~/.spacemacs=. You will need to
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add =elixir= to the existing =dotspacemacs-configuration-layers= list in this
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file.
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** Choosing a backend
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To choose a default backend set the layer variable =elixir-backend=:
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#+BEGIN_SRC elisp
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(elixir :variables elixir-backend 'alchemist)
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#+END_SRC
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Backend can be chosen on a per project basis using directory local variables
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(files named =.dir-locals.el= at the root of a project), an example to use the
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=lsp= backend:
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#+BEGIN_SRC elisp
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;;; Directory Local Variables
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;;; For more information see (info "(emacs) Directory Variables")
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((elixir-mode (elixir-backend . lsp)))
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#+END_SRC
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*Note:* you can easily add a directory local variable with ~SPC f v d~.
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The available options are:
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| symbol | description |
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|------------+-------------------|
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| 'alchemist | Default |
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| 'lsp | elixir-ls package |
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*** Feature comparison in backends
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| features | Alchemist | Lsp |
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|------------------------------------+-----------+-----|
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| Powerful IEx integration | yes | no |
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| Mix integration | yes | no |
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| Compile & Execution of Elixir code | yes | no |
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| Inline code evaluation | yes | no |
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| Documentation lookup | yes | yes |
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| Definition lookup | yes | yes |
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| Smart code completion | yes | yes |
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| Elixir project management | yes | no |
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| Integration with =company-mode= | yes | yes |
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| Flycheck support | yes | yes |
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* Configuration
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** Flycheck
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@ -125,130 +176,156 @@ Emacs won't ask you if the variable is safe whenever an elixir file is opened.
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Remember that you can verify the flycheck checkers status with ~SPC e v~.
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** Language server protocol
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The =lsp= backend uses [[https://github.com/JakeBecker/elixir-ls][elixir-ls]] as its language server implementation
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Clone the project to your system and follow the building instructions [[https://github.com/JakeBecker/elixir-ls#building-and-running][here]]
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Or the lsp-elixir [[https://github.com/elixir-lsp/elixir-ls][fork]], which is actively maintained as well
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set the =elixir-ls-path= to the release folder of =elixir-ls= in .spacemacs =dotspacemacs/user-config=
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#+BEGIN_SRC elisp
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(setq elixir-ls-path "*path to folder*/elixir-ls/release")
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#+END_SRC
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or in the layer definition
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#+BEGIN_SRC elisp
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(elixir :variables elixir-backend 'alchemist elixir-ls-path "*path to folder*/elixir-ls/release")
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#+END_SRC
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by default =elixir-ls-path= is equal to ="~/elixir-ls/release"=
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** Debugger
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For =lsp= backend only
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=lsp= backend supports debugging of your elixir project through [[https://github.com/emacs-lsp/dap-mode][dap]]
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simply follow [[https://github.com/syl20bnr/spacemacs/tree/develop/layers/%2Btools/dap#layer-installation][dap layer]] installation and configuration instructions
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as well as make sure to read this elixir-ls [[https://github.com/elixir-lsp/elixir-ls#debugger-support][debugger support note]]
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* Key bindings
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** Refcard
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You find and overview of all the key bindings on the [[https://github.com/tonini/alchemist.el/blob/master/doc/alchemist-refcard.pdf][Alchemist-Refcard]].
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** Alchemist
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*** Refcard
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You find and overview of all the key bindings on the [[https://github.com/tonini/alchemist.el/blob/master/doc/alchemist-refcard.pdf][Alchemist-Refcard]].
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** Help
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*** Help
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| Key binding | Description |
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|-------------+-------------------------------------|
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| ~SPC m h :~ | Run custom search for help |
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| ~SPC m h h~ | Show help of the current expression |
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| ~SPC m h H~ | Toggle through search history |
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| ~SPC m h r~ | Show help for current region |
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| Key binding | Description |
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|-------------+-------------------------------------|
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| ~SPC m h :~ | Run custom search for help |
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| ~SPC m h h~ | Show help of the current expression |
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| ~SPC m h H~ | Toggle through search history |
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| ~SPC m h r~ | Show help for current region |
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** Mix
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*** Mix
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| Key binding | Description |
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|-------------+------------------------------------------------------------|
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| ~SPC m m :~ | Prompt for a =mix= command |
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| ~SPC m m c~ | Compile the whole application |
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| ~SPC m m h~ | Show help for a specific =mix= command |
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| ~SPC m m x~ | Run the given expression in the Elixir application context |
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| Key binding | Description |
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|-------------+------------------------------------------------------------|
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| ~SPC m m :~ | Prompt for a =mix= command |
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| ~SPC m m c~ | Compile the whole application |
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| ~SPC m m h~ | Show help for a specific =mix= command |
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| ~SPC m m x~ | Run the given expression in the Elixir application context |
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** Project
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*** Project
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| Key binding | Description |
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|-------------+------------------------------------------------------------|
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| ~SPC m g t~ | Toggle between a file and its tests in the current window. |
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| ~SPC m g T~ | Toggle between a file and its tests in other window. |
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| Key binding | Description |
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|-------------+------------------------------------------------------------|
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| ~SPC m g t~ | Toggle between a file and its tests in the current window. |
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| ~SPC m g T~ | Toggle between a file and its tests in other window. |
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** Evaluation in place
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*** Evaluation in place
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| Key binding | Description |
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|-------------+-----------------------------------------|
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| ~SPC m e b~ | Evaluate buffer |
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| ~SPC m e B~ | Evaluate buffer and insert result |
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| ~SPC m e l~ | Evaluate current line |
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| ~SPC m e L~ | Evaluate current line and insert result |
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| ~SPC m e r~ | Evaluate region |
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| ~SPC m e R~ | Evaluate region and insert result |
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| Key binding | Description |
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|-------------+-----------------------------------------|
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| ~SPC m e b~ | Evaluate buffer |
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| ~SPC m e B~ | Evaluate buffer and insert result |
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| ~SPC m e l~ | Evaluate current line |
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| ~SPC m e L~ | Evaluate current line and insert result |
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| ~SPC m e r~ | Evaluate region |
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| ~SPC m e R~ | Evaluate region and insert result |
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** REPL interactions
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*** REPL interactions
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| Key binding | Description |
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|-------------+-----------------------------------------------------------------|
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| ~SPC m s c~ | Compiles the current buffer in the IEx process. |
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| ~SPC m s i~ | Start an =iex= inferior process |
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| ~SPC m s I~ | Start an IEx process with mix (=iex -S mix=) |
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| ~SPC m s l~ | Send current line to REPL buffer |
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| ~SPC m s L~ | Send current line to REPL buffer and focus it in =insert state= |
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| ~SPC m s m~ | Reloads the module in the current buffer in your IEx process |
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| ~SPC m s r~ | Send region to REPL buffer |
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| ~SPC m s R~ | Send region to REPL buffer and focus it in =insert state= |
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| Key binding | Description |
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|-------------+-----------------------------------------------------------------|
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| ~SPC m s c~ | Compiles the current buffer in the IEx process. |
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| ~SPC m s i~ | Start an =iex= inferior process |
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| ~SPC m s I~ | Start an IEx process with mix (=iex -S mix=) |
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| ~SPC m s l~ | Send current line to REPL buffer |
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| ~SPC m s L~ | Send current line to REPL buffer and focus it in =insert state= |
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| ~SPC m s m~ | Reloads the module in the current buffer in your IEx process |
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| ~SPC m s r~ | Send region to REPL buffer |
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| ~SPC m s R~ | Send region to REPL buffer and focus it in =insert state= |
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** Tests
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*** Tests
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| Key binding | Description |
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|-------------+---------------------------------------------------------------------------------------|
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| ~SPC m g t~ | Open the test file for current buffer |
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| ~SPC m t a~ | Run all the tests |
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| ~SPC m t b~ | Run all the tests from current buffer |
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| ~SPC m t B~ | Run all the tests from current file; if test file not found, after confirm, create it |
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| ~SPC m t f~ | Choose test file to run |
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| ~SPC m t t~ | Run test under point |
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| ~SPC m t r~ | Rerun the last test |
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| ~SPC m t n~ | Jump to next test |
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| ~SPC m t N~ | Jump to previous test |
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| ~SPC m t s~ | Run stale tests (~mix test --stale~) |
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| ~SPC m t R~ | Toggle test report window |
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| ~SPC m t F~ | Open project test directory and list all test files. |
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| Key binding | Description |
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|-------------+---------------------------------------------------------------------------------------|
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| ~SPC m g t~ | Open the test file for current buffer |
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| ~SPC m t a~ | Run all the tests |
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| ~SPC m t b~ | Run all the tests from current buffer |
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| ~SPC m t B~ | Run all the tests from current file; if test file not found, after confirm, create it |
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| ~SPC m t f~ | Choose test file to run |
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| ~SPC m t t~ | Run test under point |
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| ~SPC m t r~ | Rerun the last test |
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| ~SPC m t n~ | Jump to next test |
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| ~SPC m t N~ | Jump to previous test |
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| ~SPC m t s~ | Run stale tests (~mix test --stale~) |
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| ~SPC m t R~ | Toggle test report window |
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| ~SPC m t F~ | Open project test directory and list all test files. |
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** Compile
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*** Compile
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| Key binding | Description |
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|-------------+----------------------------------------------------|
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| ~SPC m c :~ | Run a custom compile command with =elixirc= |
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| ~SPC m c b~ | Compile the current buffer with elixirc. =elixirc= |
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| ~SPC m c f~ | Compile the given filename with =elixirc= |
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| Key binding | Description |
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|-------------+----------------------------------------------------|
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| ~SPC m c :~ | Run a custom compile command with =elixirc= |
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| ~SPC m c b~ | Compile the current buffer with elixirc. =elixirc= |
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| ~SPC m c f~ | Compile the given filename with =elixirc= |
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** Execute
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*** Execute
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| Key binding | Description |
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|-------------+--------------------------------------------|
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| ~SPC m x :~ | Run a custom execute command with =elixir= |
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| ~SPC m x b~ | Run the current buffer through =elixir= |
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| ~SPC m x f~ | Run =elixir= with the given filename |
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| Key binding | Description |
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|-------------+--------------------------------------------|
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| ~SPC m x :~ | Run a custom execute command with =elixir= |
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| ~SPC m x b~ | Run the current buffer through =elixir= |
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| ~SPC m x f~ | Run =elixir= with the given filename |
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** Code Definition Jump
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*** Code Definition Jump
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| Key binding | Description |
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|-------------+----------------------------------------------------|
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| ~SPC m g g~ | Jump to the elixir expression definition at point. |
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| ~SPC m .~ | Jump to the elixir expression definition at point. |
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| ~SPC m g b~ | Pop back to where ~SPC m g g~ was last invoked. |
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| ~SPC m ,~ | Pop back to where ~SPC m g g~ was last invoked. |
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| ~SPC m g n~ | Jump to next symbol definition |
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| ~SPC m g N~ | Jump to previous symbol definition |
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| ~SPC m g j~ | Choose which symbol definition to jump to |
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| Key binding | Description |
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|-------------+----------------------------------------------------|
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| ~SPC m g g~ | Jump to the elixir expression definition at point. |
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| ~SPC m .~ | Jump to the elixir expression definition at point. |
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| ~SPC m g b~ | Pop back to where ~SPC m g g~ was last invoked. |
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| ~SPC m ,~ | Pop back to where ~SPC m g g~ was last invoked. |
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| ~SPC m g n~ | Jump to next symbol definition |
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| ~SPC m g N~ | Jump to previous symbol definition |
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| ~SPC m g j~ | Choose which symbol definition to jump to |
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** Hex (packages)
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Hex is the package manager for Elixir & Erlang ecosystem. See [[https://hex.pm]].
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*** Hex (packages)
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Hex is the package manager for Elixir & Erlang ecosystem. See [[https://hex.pm]].
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| Key binding | Description |
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|-------------+----------------------------------------------------------|
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| ~SPC m X i~ | Display Hex package information for the package at point |
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| ~SPC m X r~ | Display Hex package releases for the package at point |
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| ~SPC m X R~ | Display Hex package releases for a certain package |
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| ~SPC m X I~ | Display Hex package info for a certain package |
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| ~SPC m X s~ | Search for Hex packages |
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| Key binding | Description |
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|-------------+----------------------------------------------------------|
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| ~SPC m X i~ | Display Hex package information for the package at point |
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| ~SPC m X r~ | Display Hex package releases for the package at point |
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| ~SPC m X R~ | Display Hex package releases for a certain package |
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| ~SPC m X I~ | Display Hex package info for a certain package |
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| ~SPC m X s~ | Search for Hex packages |
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** Macro expand
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*** Macro expand
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| Key binding | Description |
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|-------------+-----------------------------------------------------------------------------------|
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| ~SPC m o l~ | Macro expand once the Elixir code on the current line |
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| ~SPC m o L~ | Macro expand once the Elixir code on the current line and insert the result |
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| ~SPC m o k~ | Macro expand completely the Elixir code on the current line |
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| ~SPC m o K~ | Macro expand completely the Elixir code on the current line and insert the result |
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| ~SPC m o i~ | Macro expand once the Elixir code on marked region |
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| ~SPC m o I~ | Macro expand once the Elixir code on marked region once and insert the result |
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| ~SPC m o r~ | Macro expand completely the Elixir code on marked region |
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| ~SPC m o R~ | Macro expand completely the Elixir code on marked region and insert the result |
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| Key binding | Description |
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|-------------+-----------------------------------------------------------------------------------|
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| ~SPC m o l~ | Macro expand once the Elixir code on the current line |
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| ~SPC m o L~ | Macro expand once the Elixir code on the current line and insert the result |
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| ~SPC m o k~ | Macro expand completely the Elixir code on the current line |
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| ~SPC m o K~ | Macro expand completely the Elixir code on the current line and insert the result |
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| ~SPC m o i~ | Macro expand once the Elixir code on marked region |
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| ~SPC m o I~ | Macro expand once the Elixir code on marked region once and insert the result |
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| ~SPC m o r~ | Macro expand completely the Elixir code on marked region |
|
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| ~SPC m o R~ | Macro expand completely the Elixir code on marked region and insert the result |
|
||||
|
||||
** Formatting
|
||||
*** Formatting
|
||||
|
||||
| Key binding | Description |
|
||||
|-------------+---------------------------|
|
||||
| ~SPC m =~ | Format the current buffer |
|
||||
| Key binding | Description |
|
||||
|-------------+---------------------------|
|
||||
| ~SPC m =~ | Format the current buffer |
|
||||
** LSP
|
||||
You find and overview of all the key bindings on the [[https://github.com/syl20bnr/spacemacs/tree/develop/layers/%2Btools/lsp#key-bindings][lsp layer description]].
|
||||
|
|
|
|||
|
|
@ -17,4 +17,10 @@ Default is nil because Elixir compilation is based on macros and thus it
|
|||
is unsafe. Activate this option only for trusted code, usage of a
|
||||
directory variable is recommended.")
|
||||
|
||||
(defvar elixir-backend 'alchemist
|
||||
"The backend to use for IDE features. Possible values are `alchemist' and `lsp'.")
|
||||
|
||||
(defvar elixir-ls-path "~/elixir-ls/release"
|
||||
"The path to the folder that contains the elixir-ls release, start scripts (language_server.sh/language_server.bat).")
|
||||
|
||||
(spacemacs|define-jump-handlers elixir-mode)
|
||||
|
|
|
|||
|
|
@ -9,6 +9,62 @@
|
|||
;;
|
||||
;;; License: GPLv3
|
||||
|
||||
(defun spacemacs//elixir-setup-backend ()
|
||||
"Conditionally setup elixir backend."
|
||||
(pcase elixir-backend
|
||||
(`alchemist (spacemacs//elixir-setup-alchemist))
|
||||
(`lsp (spacemacs//elixir-setup-lsp))))
|
||||
|
||||
(defun spacemacs//elixir-setup-company ()
|
||||
"Conditionally setup company based on backend."
|
||||
(if (eq elixir-backend `alchemist)
|
||||
(spacemacs//elixir-setup-alchemist-company)
|
||||
(spacemacs//elixir-setup-lsp-company)))
|
||||
|
||||
|
||||
;;alchemist
|
||||
|
||||
(defun spacemacs//elixir-setup-alchemist ()
|
||||
(alchemist-mode))
|
||||
|
||||
(defun spacemacs//elixir-setup-alchemist-company ()
|
||||
(when (configuration-layer/package-used-p 'alchemist)
|
||||
(progn
|
||||
(spacemacs|add-company-backends
|
||||
:backends alchemist-company
|
||||
:modes elixir-mode alchemist-iex-mode)
|
||||
(company-mode))))
|
||||
|
||||
|
||||
;;lsp
|
||||
|
||||
(defun spacemacs//elixir-setup-lsp ()
|
||||
"Setup lsp backend."
|
||||
(if (configuration-layer/layer-used-p 'lsp)
|
||||
(progn (add-to-list 'exec-path elixir-ls-path) (lsp))
|
||||
(message "`lsp' layer is not installed, please add `lsp' layer to your dotfile."))
|
||||
(if (configuration-layer/layer-used-p 'dap)
|
||||
(progn
|
||||
(require 'dap-elixir)
|
||||
(spacemacs/set-leader-keys-for-major-mode 'elixir-mode "db" nil)
|
||||
(spacemacs/dap-bind-keys-for-mode 'elixir-mode))
|
||||
(message "`dap' layer is not installed, please add `dap' layer to your dotfile.")))
|
||||
|
||||
(defun spacemacs//elixir-setup-lsp-company ()
|
||||
"Setup lsp auto-completion."
|
||||
(if (configuration-layer/layer-used-p 'lsp)
|
||||
(progn
|
||||
(spacemacs|add-company-backends
|
||||
:backends company-lsp
|
||||
:modes elixir-mode
|
||||
:append-hooks nil
|
||||
:call-hooks t)
|
||||
(company-mode))
|
||||
(message "`lsp' layer is not installed, please add `lsp' layer to your dotfile.")))
|
||||
|
||||
|
||||
;; others
|
||||
|
||||
(defun spacemacs//elixir-looking-back-special-p (expr)
|
||||
(save-excursion
|
||||
(when (or (looking-back " ")
|
||||
|
|
|
|||
|
|
@ -26,13 +26,12 @@
|
|||
))
|
||||
|
||||
(defun elixir/post-init-company ()
|
||||
(when (configuration-layer/package-used-p 'alchemist)
|
||||
(spacemacs|add-company-backends
|
||||
:backends alchemist-company
|
||||
:modes elixir-mode alchemist-iex-mode)))
|
||||
;; backend specific
|
||||
(add-hook 'elixir-mode-local-vars-hook #'spacemacs//elixir-setup-company))
|
||||
|
||||
(defun elixir/init-alchemist ()
|
||||
(use-package alchemist
|
||||
:if (eq elixir-backend 'alchemist)
|
||||
:defer t
|
||||
:init
|
||||
(progn
|
||||
|
|
@ -165,6 +164,8 @@
|
|||
(defun elixir/init-elixir-mode ()
|
||||
(use-package elixir-mode
|
||||
:defer t
|
||||
:init (spacemacs/add-to-hook 'elixir-mode-hook
|
||||
'(spacemacs//elixir-setup-backend))
|
||||
:config
|
||||
(spacemacs/set-leader-keys-for-major-mode 'elixir-mode
|
||||
"=" 'elixir-format)))
|
||||
|
|
|
|||
Loading…
Reference in New Issue