shahryarjb
Create and replace mix.exs file
Hi my friends, Imaging you have a mix file which you want to change part of it and replace after doing your changes.
For example
defmodule Dvote.MixProject do
use Mix.Project
def project do
[ .. ]
end
def application do
[..... ]
end
defp elixirc_paths(:test), do: ["lib", "test/support"]
defp elixirc_paths(_), do: ["lib"]
defp deps do
[
{:phoenix, "~> 1.6.6"},
{:mishka_installer, git: "https://github.com/mishka-group/mishka_installer.git"}
]
end
defp aliases do
[.... ]
end
end
Now I just want to change deps function and keep the other same as the orginal file and create a new mix.exs file.
defp deps do
[
{:phoenix, "~> 1.6.6"},
{:mishka_installer, git: "https://github.com/mishka-group/mishka_installer.git"},
{:new_plug, "~> 1.0.0"}
]
end
So I need suggestions how to do this! Regex? Or the other way, you can offer me?!
After creating this file in runtime!! So we need to compile whole the project because it is exs file? Or we can hot reload with a way?!
Why I need something like this?
I let my user add a dep from hex site in runtime, but I need to change the mix file auto with code and do not make user get involved to changing this file manually
By the way, I load my new deps from a json file
Thank you
The simple code for this: https://github.com/mishka-group/mishka_installer/blob/master/lib/installer/run_time_sourcing.ex
Most Liked
cmo
You’re completely mad ![]()
lud
Remember that your mix.exs file is code. That means that the deps function can return anything from anywhere, including using anything that is present in the erlang distribution like xmerl to read XML files for instance.
You could then define the dependencies in an xml file, which could allow more control of the data.
So you want to provide an app that can be added new dependencies to, at runtime? What is is exactly that you are trying to do? If the code added that way is not needed for the project to run then it is not an actual dependency ; maybe you need to implement a plugin solution for instance?
shahryarjb
Hi dear @lud, I talked about this way I want to do in these post, I am open to receive any suggestion
and
and
in this video, you can see a simple demo
with these line I add a dep or delete it from my source
https://github.com/mishka-group/mishka_installer/blob/master/lib/installer/run_time_sourcing.ex#L10-L30
So, my user need to add his package into deps function and I create this for him/her
https://github.com/mishka-group/mishka_installer/blob/master/lib/installer/dep_handler.ex#L116-L127
So all the plugins are called from a JSON file which is created from my database
for example
%MishkaInstaller.Installer.DepHandler{
app: "mishka_social",
version: "0.0.2 ",
type: "hex",
url: "https://hex.pm/packages/mishka_social",
git_tag: nil,
custom_command: nil,
dependency_type: "force_update",
update_server: nil,
dependencies: [
%{app: :phoenix, min: "1.6"},
%{app: :phoenix_live_view, max: "0.17.7", min: "0.17.7"},
%{app: :ueberauth, max: "0.17.7", min: "0.17.7"},
%{app: :ueberauth_github, min: "0.8.1"},
%{app: :ueberauth_google, min: "0.10.1"},
]
}
So the only problem exist here that is keeping state when a dep was installed before. So my library let users register an event; before compiling I send a name of app and some information, if an app needs to save something, it prevents to force_update, if not it is going to be run the bottom function.
# If you have a Task in your project you can load it in a list like [{:task_one, "ecto.migrate"}], it should be a list
@spec deps(list()) :: list
def deps(custom_command \\ []) when is_list(custom_command) do
[{:get, "deps.get"}, {:compile, "deps.compile"}] ++ custom_command
|> Enum.map(fn {operation, command} ->
{stream, status} = System.cmd("mix", [command], into: IO.stream(), stderr_to_stdout: true)
%{operation: operation, output: stream, status: status}
end)
end
In this function, when the lib gets an answer, it sends a pubsu to used admin dashboard
A simple dashboard I’m developing it: https://github.com/mishka-group/mishka_installer/blob/master/lib/installer/live/dep_getter.ex after that I add it in my CMS: GitHub - shahryarjb/mishka-cms: MishkaCms an open source and real time API base CMS Powered by Elixir and Phoenix · GitHub
My solution for event
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