If you use helm-ag you can use helm-do-ag for search in folder and then C-c C-e to open edit buffer with all the things you searched.
Here is the video tutorial on that (it shows python, but it doesn’t really matter): https://www.youtube.com/watch?v=XAHVwhTsF-g
I was updating my environment to use the latest versions of things and I hit a problem with elixir-ls. I figured out a quick fix so just posting here in case someone has the same problem. I’m using Ubuntu 18.04.
After updating elixir-ls and running $ mix elixir_ls.release I tried to connect from Emacs. But it didn’t work and I noticed this message in the elixir-ls::stderr buffer…
/opt/elixir-ls/release/language_server.sh: 8: /home/my_home/.asdf/asdf.sh: Bad substitution
This answer on SO pointed me in the right direction
https://stackoverflow.com/a/20616103/1502519
And so the quick fix was to change the first line in release/language_server.sh
from #!/usr/bin/env sh to #!/bin/bash
I think this only happens now because of a somewhat recent commit…
https://github.com/elixir-lsp/elixir-ls/commit/b2749e76a35c4e1a7ae7385fd60d06f1756b0583#diff-9b8bec26e21a66d10d7d863a16ddbf97
Actually, I just tested now and just removing the line from that commit also works as a quick fix.
What shell runs when you run the command /usr/bin/env sh?
Perhaps there’s a more universal way to write that line:
[ -f “$HOME/.asdf/asdf.sh” ] && . “$HOME/.asdf/asdf.sh”
/bin/sh is linked to dash which is the default for sh in Ubuntu
The problem seems to come from the second part of that line where asdf.sh is sourced although using a dot here seems to be POSIX compliant. So I don’t think there is anything wrong with that line per se.
running sh ~/.asdf/asdf.sh gives a similar error to the one I observed earlier
/home/my_home/.asdf/asdf.sh: 8: /home/my_home/.asdf/asdf.sh: Bad substitution
So even though the asdf.sh has #!/usr/bin/env bash at the top it seems to be ignored because it is called via sh
Thanks for figuring out more about the issue. I’m tracking this as:
Thanks for your help with this! And for all your input in this thread!!! - it has help me a lot to get a nice setup in Emacs 
Thanks for your kind words!
Also, I’ve merged Change running scripts to run bash instead of sh by axelson · Pull Request #118 · elixir-lsp/elixir-ls · GitHub which addresses this by changing language_server.sh to run bash instead of sh.
I’m just getting back into Elixir dev and setting up Spacemacs again. I got round this by filtering out several folders by adding the following to dotspacemacs/user-config()
(with-eval-after-load 'lsp-mode
(add-to-list 'lsp-file-watch-ignored ".elixir_ls$")
(add-to-list 'lsp-file-watch-ignored "deps$")
(add-to-list 'lsp-file-watch-ignored "_build$"))
Not sure if there’s a more compact way of doing that but it seems to be working!
Thanks to everyone who’s been updating the configuration information and working on the plugin and layers. Works really well and nice to be in Emacs rather than VS Code so far.
I’ve also added
(push '("*exunit-compilation*" :dedicated t :position bottom :stick t :height 0.4) popwin:special-display-config)
Which makes the exunit test output always appear at the bottom in Spacemacs and close automatically with C-g