Use file watches for all workspace files #1880
Merged
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This PR hooks up the
GetModificationTime
rule to install new file watchers for workspace files that are not already covered by the initial glob that we install, consolidating the tracking of workspace changes. There are two main use cases for this:hie.yaml
file and the cabal/stack descriptorsaddDependentFile
.The implementation adds a new zero-dependency rule
AddWatchedFile
that creates the file watches, and makesGetModificationTime
depend on it. The rest of the changes are mostly refactorings needed to hook things up.The motivation for this change is not just consolidation or performance. This is required in #1862 to be able to track changes in the use cases listed above.