What's new

• batect now uses the Docker API (instead of the CLI) for all operations except running a container. This means:

  • Almost every operation is noticeably faster, and this adds up to some common scenarios being 1-2 seconds faster on average. (For example, the CI builds for the sample projects run 20-30 seconds faster than they did with batect 0.17.)
  • batect can now show clearer, more useful error messages in some scenarios.
  • Cleanup is more reliable and robust, especially if Ctrl-C has been pressed to interrupt the task.
  • ⚠️ Breaking change: the minimum supported version of Docker is now 17.06.

• The most requested feature is finally here: progress information during image pulls. Now, whenever batect is pulling an image or pulling the base image as part of a build, you'll see detailed progress information like pulling the-image: downloading 12.2 MB of 20 MB (61%) when fancy output mode is enabled (which is the default in interactive terminals).

• If a proxy environment variable is set on the host in one form but not the other, batect will now automatically propagate the other form. For example, if http_proxy is set but HTTP_PROXY isn't, then batect will now propagate both http_proxy and HTTP_PROXY into the container (and during image builds), with HTTP_PROXY set to the value of http_proxy. See the documentation for more information.

• The behaviour when multiple prerequisites have been specified for a task has been clarified in the documentation. (Thanks to @pameck for the PR.)

• Logs created by batect when using the --log-file option will now include the process ID, making it easier to determine when two executions have been logged to the same file.

What's been fixed

• batect will no longer crash if running in fancy output mode (the default in interactive terminals) and the task container's command contains a new line character.

Getting started

First time using batect? Take a look at the getting started guide, or the Java or Ruby sample projects.

How to upgrade from previous versions

• If you're using batect 0.12 or newer, run ./batect --upgrade to upgrade automatically.
• If you're using an older version of batect, replace the batect script in your project with the one attached to this release. (Don't forget to make it executable with chmod +x batect if need be.)