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Releases now have new versioning scheme (based on dates). In this release:

• cli: short -s flag for --substitution (#880)
• cli: show output of docker build (#882)
• installer: misc. fixes to installer (#897, #899, #901 )
• docker: add ability of specifying options for a workflow step (#811)
• doc: add bazel example CI workflow (#887) and fixes for go and ansible example workflows (#891)
• doc: new computational science on python guide (#888)
• k8s: adds kubernetes runner (#889)
• release: automate pypi and dockerhub release (#824)
• podman: added support for running workflows on podman (#903)

Thanks to @wtraylor , @edeediong , @FernandaDguez , @JayjeetAtGithub , @nicolecastillo, and @Jswig for their invaluable contributions to this release.

Highlights of this version:

• Popper can now itself run in docker (https://github.com/getpopper/popper/commit/c6dd58ff9c74a034a21f3c5b034e74e7ef13ff5f)
• New installer that setups popper to run in docker instead of on the host's python environment (https://github.com/getpopper/popper/commit/6284a524a44e34792b0083961cdc38bb0391a440)
• Several improvements to documentation: new getting started guide, diagram for "The Workspace" section, restructured README. (thanks to @FernandaDguez !)
• Support for new dir step attribute (#853, thanks to @RicardoHE97!)
• New popper help command (#854, thanks to @fsr313!)
• Fix for ignoring git metadata for empty repositories, when the workspace resides in a git repository folder (#878, thanks to @JayjeetAtGithub!)
• The GIT_REMOTE_ORIGIN_URL environment variable is now defined in containers when the workflow runs inside a git repository folder (#860, thanks to @DanielOsunaV!)

This release contains a new implementation of the YAML syntax parser. In addition, the HCL syntax is deprecated and not supported anymore (2.5.0 was the last release supporting it).

Highlights of this release:

• Miscellaneous improvements to SLURM runner (#799, #802)
• Versioning of library now uses dunamai (#831)
• New parser implementation using pykwalify to validate YAML schema (ae7daa8)
• Code base now being linted/formatted with black (#828)
• Examples of how to use Popper for CI of Go, C++, Javascript projects (41cd379)
• Move integration tests from Bash to Python (#807, #810)
• Add GIT_* variables to the the container environment variables (#823)
• Add popper sh command to run a step in interactive mode (#843)

thanks to (in random order) @vipulchhabra99, @JayjeetAtGithub, @FernandaDguez, @nicolecastillo, @edeediong, @MJVNOR, @michiboo for their contributors that made this release possible!

This release supports the new YAML format for popper workflows.

In this release:

• #698: sanitize container names.
• #699: transparent execution of actions in Singularity.
• #703: on CI executions, allow ability to pass any popper run flag via commit message
• #706: warn of unsupported features in Singularity
• #708: add CI steps for installing Singularity
• #711: drop --recursive flag
• #712: ability to inject pre- and post- workflows
• #724: remove popper add
• unit testing in Python (#719, #722)
• several bug fixes (#705, #718, #725).

Many thanks to @JayjeetAtGithub, @arshul and @malept for their contributions!

New features in this release:

• #683 - Allow users to instruct popper to skip pulling images (--skip-pull) and cloning repos (--skip-clone)
• #485 - Support searching on a catalog available actions with popper search.
• #567 - Display information about an action (showing it's README content) with popper info.
• #628 - Run an action on workflow failure (--on-failure flag).

Thanks to @JayjeetAtGithub for all his contributions!

New features in this release:

• Ability to run an action and all of its dependencies via a --with-dependencies flag (#625).
• Skip actions from running by providing a --skip flag to popper run (#626)
• Allow to run on any folder, not just those within a Git repo (#647).
• Add ability to whitelist or skip certain workflows when executed on CI service (#565).

Many thanks to @JayjeetAtGithub for all his contributions!

New features in this release:

• Singularity actions are now fully supported (see docs).
• Workflows can reference actions hosted on arbitrary Git repositories (see docs).
• Generate a .dot diagram of a workflow.
• Many codebase improvements such as the use of docker-py and singularity-cli, and misc. improvements.

We would like to immensely thank @barbaraDorame, @JayjeetAtGithub, @akashrajr1 and @arshul for all their contributions.

Popper 2.0 based on github actions.

bug fix release