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| author | Alp Mestanogullari <alpmestan@gmail.com> | 2019-06-24 20:43:49 +0200 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2019-07-09 22:57:31 -0400 |
| commit | 18ac9ad404f490bd7ea0639a1b85a88ed4502613 (patch) | |
| tree | b623b43f77709e148a83cef6f5b3be192ce15640 /hadrian/completion.sh | |
| parent | 42ff8653bd5ce7f00af5783f2973393ebfcd7cc7 (diff) | |
| download | haskell-18ac9ad404f490bd7ea0639a1b85a88ed4502613.tar.gz | |
Hadrian: implement key-value settings for builder options
They take the general form `foo.bar.baz [+]= some values`, where
`=` completely overrides the arguments for a builder and `+=` extends
them. We currenly only support settings for updating the GHC and C
compiler options, of the form:
```
{stage0, ..., stage3 or *}.{package name or *}
.ghc.{c, hs, link, deps, toolargs or *}.opts
{stage0, ..., stage3 or *}.{package name or *}
.cc.{c, deps or *}.opts
```
The supported settings and their use is covered in the new section
of `hadrian/doc/user-settings.md`, while the implementation is explained
in a new Note [Hadrian settings].
Most of the logic is implemented in a new module, `Settings.Parser`, which
contains key-value assignment/extension parsers as well as utilities for
specifying allowed settings at a high-level, generating a `Predicate` from
such a description or generating the list of possible completions for a given
string.
The additions to the `Settings` module make use of this to describe the
settings that Hadrian currently supports, and apply all such
key-value settings (from the command line and `<root>/hadrian.settings`)
to the flavour that Hadrian is going to proceed with.
This new setting system comes with support for generating Bash completions,
implemented in `hadrian/completion.sh` and Hadrian's `autocomplete` target:
> source hadrian/completion.sh
> hadrian/build.sh stage1.base.ghc.<TAB>
stage1.base.ghc.c.opts stage1.base.ghc.hs.opts
stage1.base.ghc.*.opts stage1.base.ghc.deps.opts
stage1.base.ghc.link.opts stage1.base.ghc.toolargs.opts
Diffstat (limited to 'hadrian/completion.sh')
| -rwxr-xr-x | hadrian/completion.sh | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/hadrian/completion.sh b/hadrian/completion.sh new file mode 100755 index 0000000000..589fdf5795 --- /dev/null +++ b/hadrian/completion.sh @@ -0,0 +1,7 @@ +#!/usr/bin/env bash + +hadrian=$(cd hadrian; cabal new-exec which hadrian; cd ..) +all_settings=$($hadrian autocomplete --complete-setting="$@" --quiet) + +complete -W "$all_settings" hadrian/build.sh +complete -W "$all_settings" hadrian/build.cabal.sh |