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--usenimcache (implied by nim r main) now caches some compile options to avoid recompiling when project was previously compiled with such options. (#17829)

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* `--usenimcache` (implied by `nim r main`) now caches some compile options
to avoid recompiling when project was previously compiled with such options.

* works
* add test
* changelog
* use std/with
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Timothee Cour 2021-04-25 01:25:31 -07:00 • committed by GitHub
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changelog.md
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@ -377,7 +377,16 @@
- `--hint:CC` now goes to stderr (like all other hints) instead of stdout.
- json build instructions are now generated in `$nimcache/outFileBasename.json`
instead of `$nimcache/projectName.json`. This allows avoiding recompiling a given project
compiled with different options if the output file differs.
- `--usenimcache` (implied by `nim r main`) now generates an output file that includes a hash of
some of the compilation options, which allows caching generated binaries:
nim r main # recompiles
nim r -d:foo main # recompiles
nim r main # uses cached binary
nim r main arg1 arg2 # ditto (runtime arguments are irrelevant)
## Tool changes