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kit: hot reloading server components #14025

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kit: hot reloading server components #14025

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Commits on Sep 20, 2024

  1. kit + server component improvements 

    you can use --server-components with bun build, and you get a slightly
more correct output. this output is not yet perfect or usable. but i am
committing this as a checkpoint as the next step is a large design
change for how `kit.DevServer` bundles and re-bundles files

we are removing the old `Framework` struct, and replacing it with a new
one with a similar purpose: configuration options targeted towards
framework developers. it tells the bundler how to glue the framework to
the application, mostly in regards to react server components

introduce `bundle_v2.AstBuilder`, which is used for parallel generation
of virtual modules. previously, this used a string builder combined with
the javascript parser. this is silly and will not be fun to use for the
3-5 file kinds that the bundler will have to generate. this builder
makes it very easy

introduce `kit.DevServer.IncrementalGraph`, which will keep track of
changes between bundle tasks. however, this code is not ripe and will
be iterated on extensively. i don't think it's approach is sound yet
    @paperdave
    paperdave committed Sep 20, 2024
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  2. begin hot reloader iteration 2 

    there are two `IncrementalGraph`s. one for the client and one for the
server. the plan is all routes share these two graphs, de-duplicating
cross-route work. more explanation is left in documentation comments.

more server components bugs are fixed, but not all. it is in a weird
state where some files are tree-shaken away, as well as bogus output
like `const Client = Client;`
    @paperdave
    paperdave committed Sep 20, 2024
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