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zsh-qiime2

Hi there, QIIME 2 users and developers! This is a small oh-my-zsh plugin providing a couple of (hopefully) useful functions and aliases that could make your work with QIIME2 slightly easier. These include functions for automatic building of conda environments based on the latest QIIME2 release, functions for testing conda builds (I'm looking at you, future plugin developers), a couple of aliases to simplify some verbose commands and a bonus command prompt modifier - see below for details.

Installation

• Typically, you would install plugins under $ZSH_CUSTOM/plugins, so the easiest way is to just clone this entire repository to that location:

git clone https://github.com/misialq/zsh-qiime2.git $ZSH_CUSTOM/plugins/zsh-qiime2

• After cloning, add the plugin name to the list of active plugins in your .zshrc file:

plugins=(... zsh-qiime2)

• Now, just source the .zshrc file or simply restart the terminal

Functionality

Command prompt

This plugin lets you add a small modification to your command prompt that will display the QIIME 2 version installed in the currently activated conda environment. For now, it only supports the Powerlevel10k theme.

To install the prompt, you need to add qiime2 to the list of prompt segments in your theme configuration file (~/.p10k.zsh). It should look something like this (when added to the right prompt):

# The list of segments shown on the right. Fill it with less important segments.
# Right prompt on the last prompt line (where you are typing your commands) gets
# automatically hidden when the input line reaches it. Right prompt above the
# last prompt line gets hidden if it would overlap with left prompt.
typeset -g POWERLEVEL9K_RIGHT_PROMPT_ELEMENTS=(
# =========================[ Line #1 ]=========================
qiime2
status                  # exit code of the last command
...

After sourcing the configuration file (or restarting your terminal), you should be able to see the current QIIME 2 version:

• for prod releases:
• for dev releases:

Functions

• set_up_full_env - sets up a full QIIME 2 conda environment, using the desired QIIME 2 release (equivalent to what is described in the documentation under Native installation section). Running this function without any arguments will create a new environment using the latest available QIIME 2 version.

  set_up_full_env [-n <env_name> -v <qiime_version>]
  

  where:
  • env_name is the name for the new conda environment
  • qiime_version is the requested QIIME 2 version (in a format: 2021.11; note that only versions from 2020.11 on are supported)
• set_up_dev_env- sets up a minimal QIIME 2 environment (qiime2, q2cli, q2-types), using the desired dev release. Running this function without any arguments will create a new environment using the latest available QIIME 2 dev version.

  set_up_dev_env [-n <env_name> -v <qiime_version>]
  

  where:
  • env_name is the name for the new conda environment
  • qiime_version is the requested QIIME 2 version (in a format: 2021.11; note that only versions from 2020.11 on are supported)
• extend_env- adds a couple of useful dev packages to an existing environment (q2lint, flake8, coverage, wget, pytest-xdist)
• build_conda_pkg- builds and tests a conda package for QIIME 2 plugins:

  build_conda_pkg <package_name> <qiime2_version> <os>
  

  where qiime2_version has format 2021.8 and os is either osx or linux

Aliases

Issues?

Should you encounter any issues whatsoever, feel free to reach out - this is still a very early version of the plugin so there maybe a need of polishing this or that.

Happy QIIME'ing!