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[personal profile] escapewindow

I found myself missing mozharness at various points over the past 10 months. Several things kept me from using it at my then-new job:

  • Even though we had kept mozharness.base.* largely non-Mozilla-specific, the mozharness clone-and-run model meant there was a lot of Mozilla-specific code that came along with it.

  • The monolithic BaseScript + mixins model had a very steep barrier of entry. There's a significant learning curve, and scripts need to be fully ported to mozharness to take advantage of its features.

I had wanted to address these issues for years, but never had time to devote fully to harness-specific development.

Now I do.

Introducing scriptharness 0.1.0:

I'm proud of this. I'm also aware it's not mature [yet], and it's currently missing some functionality.

There are some ideas I'd love to explore before 1.0.0:

  • multiple Script objects with threading and separate logs

  • Config Type Definitions

  • rethink how to enable/disable actions. I could keep mozharness' --add-action clobber --no-upload structure, or play with --actions +clobber -upload or something. (The - before the upload in the latter might cause argparse issues?)

  • also, explore Maven-style actions (all actions before target action are enabled) and actions with dependencies on other actions. I prefer keeping each action independent, idempotent, and individually targetable, but I can see someone wanting the other behavior for certain scripts.

  • I've already split out strings from code in a number of places, for unit testing. I'm curious what it would take to make scriptharness localizable, and if there would be demand for it.

  • ahal suggested adding structured logging; I'd love to investigate that.

I already have 0.2.0 on the brain. I'd love any feedback or patches.

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