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+## Purge subprojects folder
+
+It is now possible to purge a subprojects folder of artifacts created
+from wrap-based subprojects including anything in `packagecache`. This is useful
+when you want to return to a completely clean source tree or busting caches with
+stale patch directories or caches. By default the command will only print out
+what it is removing. You need to pass `--confirm` to the command for actual
+artifacts to be purged.
+
+By default all wrap-based subprojects will be purged.
+
+- `meson subprojects purge` prints non-cache wrap artifacts which will be
+purged.
+- `meson subprojects purge --confirm` purges non-cache wrap artifacts.
+- `meson subprojects purge --confirm --include-cache` also removes the cache
+artifacts.
+- `meson subprojects purge --confirm subproj1 subproj2` removes non-cache wrap
+artifacts associated with the listed subprojects.