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rustbuild: Add small description of --keep-stage

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Ulrik Sverdrup 2016-12-15 01:10:44 +01:00
parent 4e696edc71
commit 0e01427bba
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src/bootstrap/README.md
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@ -42,6 +42,15 @@ The script accepts commands, flags, and filters to determine what to do:
./x.py build --stage 0 src/libtest
```
If files are dirty that would normally be rebuilt from stage 0, that can be
overidden using `--keep-stage 0`. Using `--keep-stage n` will skip all steps
that belong to stage n or earlier:
```
# keep old build products for stage 0 and build stage 1
./x.py build --keep-stage 0 --stage 1
```
* `test` - a command for executing unit tests. Like the `build` command this
will execute the entire test suite by default, and otherwise it can be used to
select which test suite is run: