FredKSchott/snowpack

Automatic hmrDelay activation with a warning, for big eleventy/typescript rebuilds

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#2083 opened on Dec 22, 2020

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 (3 comments) (1 reaction) (0 assignees)JavaScript (19,541 stars) (923 forks)batch import
contributors welcome!enhancementgood first issue

Description

TypeScript has a bug, it will touch all files in --build mode. This leads to too many [ESM-HMR] reload. Please add a throttle on it thanks

image

Contributor guide

Tech stack
typescriptnodejs
Domain
build systemdeveloper experience
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Understand HMR in SnowpackFamiliarity with TypeScript rebuild behavior
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
Investigate Snowpack's HMR configuration, specifically the `hmrDelay` option. Check the source code in `snowpack/src/` for how HMR reloads are triggered. Look for existing throttle mechanisms or related issues. Consider adding a configurable throttle with a warning when TypeScript rebuilds cause excessive reloads. Review comments on this issue for further context.