trees: auto-delete+auto-rebuild if project changes

actual source code is not scanned, but config directories are
scanned. simply get the checksum of each file under config/
pertaining to a given project/tree, and also for the given
target. coreboot utilities are also handled.

if it changes, in any way, delete and re-build automatically.

such deletions should probably still be done manually, as part
of understanding the build system, but this change should make
the build system much easier to use during development.

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/build b/build
index d03960c6..b1b0f40d 100755
--- a/build
+++ b/build
@@ -100,6 +100,7 @@ build_release()
 	cd "$srcdir" || $err "$vdir: !cd \"$srcdir\""
 	./update trees -f
 	rmgit .
+	x_ rm -Rf hash repo
 	x_ mv src/docs docs
 	) || $err "can't create release files"