ghc-pkg: Allow unregistering multiple packages in one call
This can save lots of time when the cost to invoke a single GHC command is high, for example through docker.
An example user of this would be stack build
, which will unregister all relevant packages if e.g. --extra-lib-dirs
has changed. Currently it has to do that through multiple ghc-pkg unregister
operations, which can take about 2 seconds per call when done through a docker image. If we could unregister multiple packages at once, such use cases would have to pay the 2 seconds penalty only once.
Trac metadata
Trac field | Value |
---|---|
Version | 8.0.1 |
Type | FeatureRequest |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | nh2 |
Operating system | |
Architecture |