Start work on combined worklog

makefile-language

@@ -34,3 +34,20 @@ BOOKMANIFESTS := $(foreach BOOK,$(BOOKS),book_$(BOOK)__$(_book)_$(BOOK)-manifest
 
 .PHONY: language $(BOOKMANIFESTS)
 language: $(BOOKMANIFESTS)
+
+stats: reports/progress.pdf
+
+combined-worklogs.sqlite: repository-worklog.sqlite $(foreach SUBMODULE,$(SUBMODULES),$(SUBMODULE)/repository-worklog.sqlite)
+	sqlite3 $@ 'DROP TABLE IF EXISTS commits; CREATE TABLE commits (sha TEXT, author TEXT, date DATE, file TEXT, added INT, removed INT)'
+	for db in $(filter %.sqlite,$^); do
+		sqlite3 $${db} .dump
+	done | sqlite3 $@
+
+
+reports/progress.md: $(CCMTOOLKITDIR)/languages.yml $$(newcommits)
+	mkdir -p $(dir $@)
+	export PS4=; exec > $@ # black magic
+	echo ---
+	echo title: Progress log for $(call versioninfo,$(PROJECT))
+	echo date: $(shell LANG=$(LANGUAGE) date)
+	echo ---