This assumes that downstream users of `buildNpmPackage` would rather our
own built `node_modules` be copied to the output rather than only the
`bundleDependencies` specified in the `package.json` file.
Having the latter behavior seems unexpected and unintuitive, and would
not work as installing from an `npm pack` is intended to (since doing
that would not do a `rebuild` step on those dependencies and it would
skip reifying a full dependency tree).
Hooks are essentially implemented as special shell packages that run on
their respective host platform. When they are used, they appear as
nativeBuildInputs (as they need to be executed as part of the build of a
package using them) so are taken from buildPackages relative to the
derivation using them.
Since the override in buildNpmPackage nullifies splicing, we take
npmHooks from buildPackages manually.
Fixes pkgsCross.ghcjs.buildPackages.emscripten and thus
pkgsCross.ghcjs.haskellPackages.ghc.
In some odd scenarios, `npm prune` either fails, or hangs. I have no idea
what could possibly be wrong at the moment, but let's provide an escape
hatch for packages that can still use the rest of the install hook's
functionality.
Single quotes must be used when using graves in a quote, else Bash will interpret it as a command to run.
Thanks to Dimitri for catching this (8e651111b7 (commitcomment-92100762)).
Previously, we stored the tarballs from the hosted Git providers directly in the cache. However, as we've seen with `fetchFromGitHub` etc, these files may change subtly.
Given this, this commit repacks the dependencies before storing them in the cache.
