feat: support digest generation w/ diff support

Makefile

@@ -18,7 +18,7 @@ include src/packages.mk
 
 DEFAULT_GOAL := default
 .PHONY: default
-default: compat all
+default: compat digests.txt
 
 .PHONY: all
 all: $(shell find src/*/* -type d -exec sh -c 'basename {} | tr "\n" " "' \; )
@@ -36,5 +36,10 @@ digests:
 			"$$(basename $$(dirname $$each))";  \
 	done
 
+digests.txt: all
+	mv $@ .$@.old
+	$(MAKE) digests > $@
+	diff $@.old $@
+
 out/graph.svg: Makefile
 	$(MAKE) -Bnd | make2graph | dot -Tsvg -o graph.svg

README.md

@@ -237,7 +237,7 @@ For further reading see the [Bootstrappable Builds](https://bootstrappable.org/)
 
 ### Examples
 
-#### Compile all packages
+#### Reproduce entire tree
 
 ```
 make
@@ -249,19 +249,13 @@ make
 make rust
 ```
 
-#### Reproduce all changed packages (WIP)
+#### Compile specific package without cache
 
 ```
-make reproduce
+make NOCACHE=1
 ```
 
-#### Reproduce all packages without cache (WIP)
-
-```
-make clean reproduce
-```
-
-#### Sign current manifest of package hashes (WIP)
+#### Sign all locally built packages (WIP)
 
 ```
 make sign