Introduction to exenv
exenv is a robust tool for managing multiple Elixir versions in a single development environment, much like rbenv for Ruby. It simplifies the process of switching between Elixir versions and makes it easier to handle dependencies across projects. Below, we provide dozens of useful API explanations with code snippets to help you get the most out of exenv.
Installation
To install exenv, you can use the following commands:
git clone https://github.com/mururu/exenv.git ~/.exenv echo 'export EXENV_ROOT="$HOME/.exenv"' >> ~/.bash_profile echo 'export PATH="$EXENV_ROOT/bin:$PATH"' >> ~/.bash_profile echo 'eval "$(exenv init -)"' >> ~/.bash_profile git clone https://github.com/mururu/elixir-build.git ~/.exenv/plugins/elixir-build Basic Commands
Here are some basic commands to get you started with exenv:
Install a new Elixir version
exenv install 1.12.3Show all available Elixir versions
exenv install -lShow all installed Elixir versions
exenv versionsSet the global Elixir version
exenv global 1.12.3Set the local Elixir version for a project
exenv local 1.11.4Uninstall an Elixir version
exenv uninstall 1.11.4Rehash shims
After installing new versions or plugins, use the rehash command:
exenv rehashAdvanced Commands
Explore more advanced commands for a better workflow:
Diagnose issues with shims
exenv doctorDetox an Elixir environment
exenv detoxPrune old Elixir versions
exenv pruneExample Application Using exenv
The following is an example application setup using exenv:
Step 1: Create a new Phoenix project
mix phx.new my_appStep 2: Navigate into the project directory
cd my_appStep 3: Set the local Elixir version for the project
exenv local 1.12.3Step 4: Install dependencies
mix deps.getStep 5: Start the Phoenix server
mix phx.serverBy following these steps, you can ensure that your Phoenix application is running with the specified Elixir version managed by exenv.
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