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Build Status Code style: black Anaconda-Server Badge Anaconda-Server Badge

publish-conda-stack

Scripts build a custom set of conda packages from a common environment and publish to a custom conda channel.

Introduction:

Originally developed to manage the dependency tree for ilastik, which we handle by using the conda package manager. The build process is automated by the scripts in this repository. For an example of a large package set which can be built using this tool, see ilastik-conda-recipes.

Basic Idea

You have a list of conda recipes (spread across one or more git repos), and you want to make sure your channel has an up-to-date build of each corresponding package. For each of your recipes, publish-conda-stack will perform the following steps:

  1. Clone the recipe repo to a local cache.
  2. Check out the desired tag (with submodules, if any).
  3. Determine the exact package version (and build string) that the recipe would produce, if it were built (via conda render).
  4. Check your channel to see if that exact version already exists.
  5. If it doesn't exist on your channel yet, build the recipe and upload the resulting package to your channel.

Installation

conda install -n base -c ilastik-forge -c conda-forge publish-conda-stack

This also installs the publish-conda-stack main entry-point and makes it available in the respective conda environment.

Building packages:

Configuration files

Run conda install anaconda-client. You need to be logged in to your https://anaconda.org account by running anaconda login.

publish-conda-stack builds packages specified in a yaml config file. An example:

Common configuration

# common configuration for all packages defined in shared-config:
shared-config:
  # will translate to --python for every conda-build, deprecated, use pin-file
  python: '3.6'
  # will translate to --numpy for every conda-build, deprecated, use pin-file
  numpy: '1.13'
  # Path to store git repositories containing recipes. Relative to this yaml file's directory.
  repo-cache-dir: ./repo-cache
  # Optional path to master conda_build_config file to unify build-environment and package pins across recipes
  master-conda-build-config: ./my-pins.yaml
  # Channels to check for dependencies of the built package
  source-channels:
    - my-personal-channel
    - conda-forge
  # channel to upload recipes to
  destination-channel: my-personal-channel

Package definitions

recipe-specs:
    - name: PACKAGE_NAME
      recipe-repo: PACKAGE_RECIPE_GIT_URL
      tag: RECIPE_GIT_TAG_OR_BRANCH
      recipe-subdir: RECIPE_DIR_IN_GIT_REPO
      
      # Optional specs
      environment:
          MY_VAR: VALUE
      conda-build-flags: STRING_THAT_WILL_BE_APPENDED_TO_CONDA_BUILD
      # by default a package is built on all 3 platforms, you can restrict that by specifying the following
      build-on:
        - linux
        - win
        - osx

    - name: NEXT_PACKAGE
          ...

Optional Master conda-build-config

You can add a master conda_build_config.yaml file that will be passed to conda-build, hence, it supports all syntax as described in the conda-build docs. This field is optional. If the field is left blank, it will be simply ignored.

Example file:

- python: 3.6

pin_run_as_build:
  python: x.x

Building

# on Linux and Windows:
publish-conda-stack my-recipe-specs.yaml
# on Mac:
MACOSX_DEPLOYMENT_TARGET=10.9 publish-conda-stack my-recipe-specs.yaml

The build-recipes.py script parses the packages from my-recipe-specs.yaml, and for each package checks whether an up-to-date version is already available on the destination-channel listed in my-recipe-specs.yaml. If the packages don't yet exist in that channel set, it will build the package and upload it.

About

Scripts to update our published conda packages when our recipes have changed.

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